2006-08-13 Andrew Pinski <pinskia@physics.uc.edu>

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

2006-08-13  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-pass.h (TODO_update_ssa): Fix which bit is used to take
        into account for TODO_dump_cgraph.
        (TODO_update_ssa_no_phi): Likewise.
        (TODO_update_ssa_full_phi): Likewise.
        (TODO_update_ssa_only_virtuals): Likewise.
        (TODO_remove_unused_locals): Likewise.
        (TODO_set_props): Likewise.
        (TODO_update_stmt_usage): Likewise.

2006-08-13  Dirk Mueller  <dmueller@suse.de>

        * c-common.c (strict_aliasing_warning): Fix formatting.

2006-08-13  Matthias Klose  <doko@debian.org>

        * doc/invoke.texi: Fix spelling errors.

2006-08-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/23454
        * reorg.c (relax_delay_slots): Update comment.

2006-08-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/28651
        * simplify-rtx.c (simplify_const_relational_operation):
        Simplify A CMP B to A - B CMP 0 only for EQ and NE comparison
        codes.

2006-08-10  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (build1_stat): Also propagate the TREE_CONSTANT and
        TREE_INVARIANT flags for a VIEW_CONVERT_EXPR.

2006-08-10  Paul Brook  <paul@codesourcery.com>

        * final.c (final_scan_insn): Clear current_insn_predicate before
        outputting inline asm.

2006-08-10  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26197
        * tree-ssa-alias.c (new_type_alias): Takes additional argument. Calls
        get_ref_base_and_extent and overlap_subvar to add only relevant
        subvars as may-aliases.
        (add_may_alias_for_new_tag): New function, factored out of
        new_type_alias.
        * tree-vect-transform.c (vect_create_data_ref_ptr): Call new_type_alias
        with additional argument.
        * tree-flow.h (new_type_alias): Takes additional argument.

2006-08-09  Nathan Sidwell  <nathan@codesourcery.com>

        * gcov.c (no_data_file): New flag.
        (read_count_file): Set it if data file not present.  Assume counts
        zero if not found.
        (output_lines): Don't name the data file, if there wasn't one.

2006-08-09  Eric Botcazou  <ebotcazou@adacore.com>

        * config/rs6000/rs6000.c (print_operand) <D>: Fix comment and adjust.
        (rs6000_generate_compare): Tweak comments.
        * config/rs6000/rs6000.md (UNSPEC_MV_CR_GT): Fix comment.

2006-08-09  Alexandre Oliva  <aoliva@redhat.com>

        * var-tracking.c (enum micro_operation_type): Add MO_COPY.
        (var_debug_decl): New function.
        (var_reg_set): Follow debug decl link.  Add location even if
        reg is already known to hold some other variable.
        (var_mem_set): Follow debug decl link.
        (var_reg_delete_and_set, var_mem_delete_and_set): Follow debug
        decl link.  Delete other known locations of the variable part
        if requested.
        (var_reg_delete, var_mem_delete): Delete other known locations
        of the variable part if requested.
        (same_variable_part_p): New function.
        (add_stores): Select MO_COPY when appropriate.
        (vt_initialize): Handle it.
        (compute_bb_dataflow, emit_notes_in_bb): Likewise.  Delete
        known locations for MO_SET and MO_CLOBBER.
        (find_variable_location_part): New function.
        (set_variable_part, delete_variable_part): Use it.
        (clobber_variable_part): New function.
        * dwarf2out.c (dwarf2out_var_location): Do not follow debug
        decl link.

2006-08-07  Victor Kaplansky <victork@il.ibm.com>

        PR tree-optimization/26969
        * tree-vect-analyze.c (vect_analyze_loop_form): Add check of latch
         with an empty list of PHIs.

2006-08-06  Paolo Bonzini  <bonzini@gnu.org>

        PR target/27827

        * conffig/i386/i386.md: Add peephole2 to avoid "fld %st"
        instructions.

2006-08-06  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.c (m68k_output_function_epilogue): Fix format
        string.  Whitespace and comment fixup.

2006-08-05  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/28502
        * c-decl.c (validate_proto_after_old_defn): Return false on invalid
        argument.

        PR c/27721
        * c-typeck.c (build_modify_expr): Test earlier for non-lvalues.

        PR c/28136
        * c-parser.c (c_parser_postfix_expression_after_paren_type): Robustify.

2006-08-04  Jan Hubicka  <jh@suse.cz>

        PR target/26655
        PR target/28270
        * reload.c (push_reload): Patch out the mismatching instruction;
        return early.
        (find_reload): Bail out if the instruction was patched out.

2006-08-04  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/24888
        * tree-inline.c (expand_call_inline): Do not re-record variables.
        (declare_inline_vars): Add variable to unexpanded_var_list.

2006-08-04  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
            Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/26244
        * cse.c (fold_rtx): Correctly associate shifts when const_arg1 and/or
        inner_const are negative or greater than or equal to the bitsize of
        MODE.  If SHIFT_COUNT_TRUNCATED is false, the values aren't associated.
        Otherwise, the values are masked using GET_MODE_BITSIZE (mode) - 1.
        Simplify complicated if statement.  For ASHIFT and LSHIFTRT, return
        CONST0_RTX (mode) when the new shift count is greater than or equal to
        to the bitsize of the object being shifted and XEXP (y, 0) has no side
        effects.

2006-08-04  Kazu Hirata  <kazu@codesourcery.com>

        * tree-cfg.c: Fix a comment typo.

2006-08-03  Mark Mitchell  <mark@codesourcery.com>

        PR c++/28148
        * varasm.c (output_constant): Give the front end another chance to
        expand constants, after stripping NOPs.

2006-08-03  Jan Hubicka  <jh@suse.cz>

        * domwalk.c (walk_dominator_tree): Reorganize to non-recursive
        implementation.

2006-08-03  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/27770
        * tree-vectorizer.h (get_vectype_for_scalar_type): Function
        declaration removed (moved to tree-flow.h).
        (vect_can_force_dr_alignment_p): Likewise.
        * tree-flow.h (get_vectype_for_scalar_type): New function declaration
        (moved from tree-vectorizer.h).
        (vect_can_force_dr_alignment_p): Likewise.
        * tree-vectorizer.c (vect_print_dump_info): Allow calling this function
        from outside the vectorizer - in particular from cgraph stage.
        * tree-vect-analyze.c (vect_compute_data_ref_alignment): Don't increase
        the alignment of global arrays when -fsection-anchors is enabled.
        * cgraphunit.c (cgraph_increase_alignment): New function.
        (cgraph_optimize): Call cgraph_increase_alignment.

2006-08-03  David Edelsohn  <edelsohn@gnu.org>

        PR target/27566
        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Do
        not reload a SPE symbol_ref into a lo_sum address.

2006-08-02  Daniel Jacobowitz  <dan@codesourcery.com>

        PR debug/28063
        * dwarf2out.c (prune_unused_types_prune): Move call to
        prune_unused_types_update_strings to cover the parent DIE also.

2006-08-02  Jan Hubicka  <jh@suse.cz>

        PR gcov/profile/28480
        * tree-cfg.c (change_bb_for_stmt): New function.
        (tree_merge_blocks, tree_split_blocks): Use it.

2006-08-01  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c++/28250
        PR c++/28257
        PR c++/28259
        PR c++/28267
        * toplev.c (compile_file): Return early on errorcount or sorrycount.
        * cgraphunit.c (cgraph_finalize_compilation_unit): Likewise.
        (cgraph_optimize): Likewise.

2006-08-01  Stuart Hastings  <stuart@apple.com>

        * rtl.h (UINTVAL) New.
        * config/rs6000/rs6000.c (SMALL_INT) Use it.
        * testsuite/gcc.dg/20060801-1.c: New.
        
2006-08-01  Daniel Jacobowitz  <dan@codesourcery.com>

        PR debug/23336
        * c-typeck.c (build_external_type): Mark used enum types.
        * dwarf2out.c (dwarf2out_abstract_function): Save and restore
        cfun also.
        (gen_subprogram_die): Whitespace fix.

2006-08-01  Jan Hubicka  <jh@suse.cz>

        * tree-outof-ssa.c (check_replaceable): Do not allocate def_vars
        bitmap when not needed.
        * tree-ssa-pre.c (bitmap_set_and, bitmap_set_and_compl): Free temporary
        bitmaps.

2006-08-01  Dirk Mueller  <dmueller@suse.de>

        * tree-vrp.c (fix_equivalence_set): Avoid bitmap memory leak.

2006-07-31  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        * Makefile.in: Revert part of previous patch:
        Replace $(VARRAY_H) by varray.h in definition of BASIC_BLOCK_H
        and REGS_H.

2006-07-30  Eric Christopher  <echristo@apple.com>

        PR target/27543
        * doc/extend.texi (i386 Variable Attributes): Add anchor.
        (PowerPC Variable Attributes): New section.

2006-07-30  Atsushi Nemoto  <anemo@mba.ocn.ne.jp>

        PR target/28126 (partial fix)
        * config/mips/mips.md (tls_get_tp_<mode>): Set can_delay to no.

2006-07-28  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/28071
        * cfgrtl.c (rtl_delete_block): Free regsets.
        * flow.c (allocate_bb_life_data): Re-use regsets if available.

2006-07-28  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        * Makefile.in: Use $(HEADER_H) instead of header.h in dependencies
        and variables used in dependencies.

2006-07-27  Arjan van de Ven <arjan@linux.intel.com>

        * config/i386/i386.md (stack_tls_protect_set_di) Use %gs rather than
        %fs for -mcmodel=kernel.
        (stack_tls_protect_test_di): Likewise.

2006-07-27  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Use mkinstalldirs.

2006-07-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/28437
        * opts-common.c (prune_options): Skip joined switches.

2006-07-27  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/28071
        * cselib.c (cselib_process_insn): Don't remove useless values too
        often for very large hashtables.

2006-07-27  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/28071
        * global.c (greg_obstack): New obstack.
        (allocate_bb_info): Use it.
        (free_bb_info): Likewise.
        (modify_reg_pav): Likewise.

2006-07-27  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_fixed_mathfn): When long and long long are the
        same size, canonicalize llceil*, llfloor*, llround* and llrint*
        functions to their lceil*, lfloor*, lround* and lrint* forms.

2006-07-27  Kazuhiro Inaoka  <inaoka.kazuhiro@renesas.com>

        PR gcc/28508
        * config/m32r/m32r.md (branch_insn): Reduce pc range for short
        branch.
        (rev_branch_insn): Likewise.

2006-07-27  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/28071
        * regmove.c (reg_is_remote_constant_p): Avoid quadratic behaviour.
        (reg_set_in_bb, max_reg_computed): New static variables.
        (regmove_optimize): Free the new array.
        (fixup_match_1): Update call of reg_is_remote_constant_p.

2006-07-26  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/27882
        * cgraph.c (cgraph_remove_node): Clear needed, reachable, next, previous
        and decl fields.
        * cgraphunit.c (cgraph_reset_node): Expect cgraph_remove_node to kill
        next pointer
        (cgraph_analyze_compilation_unit): Likewise.
        * ipa.c (cgraph_remove_unreachable_nodes): Likewise.
        * ipa-inline.c (cgraph_decide_recursive_inlining): Likewise.
        (cgraph_early_inlinine): Make order garbage collected.
        * Makefile.in (gt-ipa-inline): New garbagecollected file.

2006-07-26  Daniel Jacobowitz  <dan@codesourcery.com>

        * dbxout.c (output_types_sort): Add a comment.
        (output_used_types): Free the VEC.

2006-07-26  Daniel Jacobowitz  <dan@codesourcery.com>

        * function.c (reorder_fix_fragments): Delete.
        (reorder_blocks): Don't call it.
        (reorder_blocks_1): Put all subblocks under the origin block.

2006-07-26  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/27907
        * expr.c (force_operand): Use convert_move to handle FLOAT_EXTEND and
        FLOAT_TRUNCATE.

2006-07-25  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/28473
        * convert.c (convert_to_integer): When transforming (T)foo(x) into
        bar(x) check that bar's result type can represent all the values of T.

2006-07-25  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-chrec.c (chrec_convert_aggressive): Return NULL on failure.

2006-07-25  Nick Clifton  <nickc@redhat.com>

        * ggc-page.c (NUM_SIZE_LOOKUP): New constant - the length of the
        size_lookup[] array.
        (ggc_alloc_stat): Use NUM_SIZE_LOOKUP.
        (ggc_pch_count_object): Likewise.
        (ggc_pch_alloc_object): Likewise.
        (ggc_pch_write_object): Likewise.
        (init_ggc): Do not attempt to initialize entries in the
        size_lookup[] array for objects whose size is greater than than
        the length of the array.

2006-07-25  Daniel Jacobowitz  <dan@codesourcery.com>

        * dbxout.c (output_used_types_helper): Push queued types
        on a VEC.
        (output_types_sort): New.
        (output_used_types): Collect used types on a VEC and sort them
        before emission.

2006-07-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/28463
        * cgraph.c (cgraph_remove_node): Do not check if dumps
        are enabled.
        * cgraphunit.c (cgraph_optimize): Likewise.

2006-07-24  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/28071
        * tree-cfg.c (tree_split_block): Do not allocate new stmt_list nodes.
        * tree-iterator.c (tsi_split_statement_list_before): Do not crash when
        splitting before first stmt.

2006-07-24  Jan Hubicka  <jh@suse.cz>

        PR rtl-optimization/28071
        * ipa-inline.c (update_caller_keys): Remove edges that
        are no longer inline candidates.

2006-07-23  Daniel Jacobowitz  <dan@codesourcery.com>

        PR debug/27473
        * dbxout.c (output_used_types_helper, output_used_types): New.
        (dbxout_symbol): Call output_used_types.

2006-07-23  Jan Hubicka  <jh@suse.cz>

        PR c/25795
        PR c++/27369
        * cgraph.c (cgraph_varpool_nodes): Export.
        (decide_is_variable_needed): Ignored "used" attribute in
        unit-at-a-time mode.
        * cgraph.h (cgraph_varpool_nodes): Declare.
        * cgraphunit.c (decide_is_function_needed): Ignored "used" attribute in
        unit-at-a-time mode.

2006-07-23  Roger Sayle  <roger@eyesopen.com>

        PR target/28247
        * gthr-solaris.h: Prototype __gthrw forms of thr_self, mutex_init and
        mutex_destroy even when !_LIBOOBJC.  Remove duplicate prototype of
        the __gthrw form of thr_keycreate.
        (__gthread_key_delete): Silence the unused argument warning.

2006-07-23  Steven Bosscher  <steven@gcc.gnu.org>

        PR debug/25468
        * config/elfos.h (ASM_OUTPUT_ASCII): Remove 'register' marks.
        Cache the last found '\0' marker to avoid quadratic behavior.

2006-07-23  Jan Hubicka  <jh@suse.cz>

        * i386.md (subsi_3_zext): Fix output template.

2006-07-21  Mike Stump  <mrs@apple.com>

        * doc/invoke.texi (C++ Dialect Options): Note that
        -fvisibility-inlines-hidden doesn't affect explicitly
        instantiationed inline methods.

2006-07-20  Roger Sayle  <roger@eyesopen.com>

        * config.gcc (i[34567]86-*-solaris2*): Add usegas.h to $tm_file
        if the target assembler is GNU binutils' gas.
        * config/i386/sol2-10.h (ASM_SPEC): Check USE_GAS to determine
        whether to pass GNU gas or native as command line options.

2006-07-20  Jason Merrill  <jason@redhat.com>

        * tree.c (remove_attribute): New fn.
        * tree.h: Declare it.

2006-07-20  Paul Brook  <paul@codesourcery.com>

        PR 27363
        * cse.c (cse_insn): Add destination addresses to hash table. Check if
        they are invalidated by this instruction.

2006-07-21  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/28427
        * config/i386/cygming.h (MAX_OFILE_ALIGNMENT): Define.

2006-07-20  Eric Christopher  <echristo@apple.com>

        PR target/26877
        * config/i386/i386.h (OPTION_DEFAULT_SPECS): Reorder.

2006-07-19  Eric Christopher  <echristo@apple.com>

        * config/t-slibgcc-darwin (stmp-lipo): Remove.
        Rewrite dependencies for libgcc_s.1.dylib.

2006-07-19  Jakub Jelinek  <jakub@redhat.com>

        * except.c (duplicate_eh_regions_1): Clear next_peer.

2006-07-17  Nathan Sidwell  <nathan@codesourcery.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Document that
        -mlongcall does not guarantee all calls will be long.
        * doc/extend.texi (long_call/short_call): Document that longcall
        does not guarantee a long call will be used.
        (longcall/shortcall): Likewise.

2006-07-18  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/28283
        * expmed.c (expand_shift): Additionally check that the shift_cost
        is not MAX_COST and that INTVAL(op1) is less than MAX_BITS_PER_WORD
        before implementing a LSHIFT_EXPR as a sequence of additions.
        * config/sh/sh.c (shift_costs): Return MAX_COST to inform the
        middle-end that DImode shifts need to be synthesized by expand.

2006-07-18  Diego Novillo  <dnovillo@redhat.com>

        PR 28410
        * tree-ssa-operands.c (access_can_touch_variable): Update
        comment.
        Return true if ALIAS is .GLOBAL_VAR.

2006-07-18  David Daney  <ddaney@avtrex.com>

        * gcc.c (display_help): Fix typo in help text.

2006-07-18  Olivier Hainque  <hainque@adacore.com>

        * tree.h (categorize_ctor_elements): Adjust prototype and add
        descriptive comment, both in accordance with the interface change
        described below.
        * varasm.c (constructor_static_from_elts_p): New function.
        Whether a constructor node is a valid static constant initializer
        if all its elements are.
        (initializer_constant_valid_p) <CONSTRUCTOR value>: Use it.
        * output.h: Declare it.
        * expr.c (categorize_ctor_elements_1): Return whether the constructor
        is a valid constant initializer instead of computing the number of
        non-constant elements.  Use constructor_static_from_elts_p for this
        purpose.  Replace the head comment with an indication that this is a
        helper for categorize_ctor_elements.
        (categorize_ctor_elements): Same interface change as for the _1
        helper.  Former head comment from this helper moved here, adjusted to
        account for the interface changes.
        (mostly_zeros_p): Adjust call to categorize_ctor_elements.
        (all_zeros_p): Likewise.
        * gimplify.c (gimplify_init_constructor): Decide whether we can make
        static versions of the constructor from the categorize_ctor_elements
        return value instead of the formerly computed number of non-constant
        elements.

2006-07-18  Paolo Bonzini  <bonzini@gnu.org>

        * configure: Regenerate.
        * Makefile.in (build_libsubdir): New configure substitution
        (build_libobjdir): New variable.
        (BUILD_LIBIBERTY): Use it.

2006-07-18  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/28286
        * c-pragma.c (handle_pragma_pack): Handle invalid constants.

2006-07-18  Alexandre Oliva  <aoliva@redhat.com>

        PR c/26993
        * c-common.c (handle_weakref_attribute): Ignore attribute in
        the same conditions the alias attribute is ignored.

2006-07-17  Carlos O'Donell  <carlos@codesourcery.com>

        * dbxout.c (dbxout_function_end): Do not increment scope_labelno.
        (dbxout_begin_prologue): Increment scope_labelno.

2006-07-17  Richard Henderson  <rth@redhat.com>

        PR 27889
        * tree-nested.c (create_tmp_var_for): Set DECL_COMPLEX_GIMPLE_REG_P
        if needed.

2006-07-17  Roger Sayle  <roger@eyesopen.com>
            Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * config/i386/gmon-sol2.c: Silence compilation warnings by partially
        synchronizing code with config/sparc/gmon-sol2.c.  Remove #if 0
        blocks.  #include "tconfig.h" and "tsystem.h" to prototype system
        functions such as sbrk, write, etc..  Add function prototypes.
        Convert function declarations from K&R to ISO C.  Cast pointers
        to "long" and "unsigned long" instead of "int" and "unsigned int".
        Convert tokens following #endif into comments.

2006-07-17  Toon Moene  <toon@moene.indiv.nluug.nl>

        * invoke.texi: Remove mention of f77; Reformat table for
        inline parameter options correctly; mention that -malign-double
        is default on x86-64 targets.

2006-07-17  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-chrec.c (avoid_arithmetics_in_type_p): New.
        (convert_affine_scev, chrec_convert_aggressive): Use
        avoid_arithmetics_in_type_p.  Do not check for the subtypes
        separately.

2006-07-17  Richard Sandiford  <richard@codesourcery.com>

        PR middle-end/28403
        * optabs.c (expand_doubleword_shift): Wrap the call to
        do_compare_rtx_and_jump with NO_DEFER_POP and OK_DEFER_POP.

2006-07-17  Richard Sandiford  <richard@codesourcery.com>

        PR middle-end/28402
        * optabs.c (expand_binop): Pass next_methods rather than methods
        to expand_doubleword_shift.

2006-07-17  J"orn Rennecke  <joern.rennecke@st.com>

        PR other/28251
        * tree.h (dump_addr): Declare.
        * print-tree.c (dump_addr): New function.
        (print_node_brief, print_node): Use it.
        * print-rtl.c (print_rtx): Likewise.
        * common.opt (-fdump-noaddr): New option.
        * doc/invoke.texi (-fdump-noaddr): Document.
        * loop-unroll.c (si_info_hash): Make hash independent of addresses.
        (ve_info_hash): Likewise.

2006-07-13  Andrew Haley  <aph@redhat.com>

        PR tree-optimization/19505
        * tree-cfgcleanup.c (tree_forwarder_block_p): If we have an EH
        edge leaving this block, make sure that the destination of this
        block has only one predecessor.

2006-07-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/28238
        * tree-inline.c (copy_bb): Check if we produced valid
        gimple copying and substituting a stmt.  If not, gimplify
        it.

2006-07-16  Eric Botcazou  <ebotcazou@adacore.com>

        * optabs.c (maybe_encapsulate_block): New function extracted from...
        (emit_libcall_block): ...here.  Invoke it on the block of insns to
        maybe emit REG_LIBCALL/REG_RETVAL notes around the block.
        (emit_no_conflict_block): Likewise.

2006-07-16  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * doc/install.texi (sparc-sun-solaris2*): Add GMP version number.

2006-07-15  Roger Sayle  <roger@eyesopen.com>

        * tree-gimple.c (is_gimple_stmt): Sink test of IS_EMPTY_STMT into
        a new NOP_EXPR case of the switch statement.

2006-07-15  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR middle-end/28160
        * stor-layout.c (place_field): Take the bit field with
        an excessive size into account in the ms-bitfiled case.

        PR middle-end/28161
        * stor-layout.c (place_field): Use DECL_BIT_FIELD_TYPE of
        the previous bit field.

2006-07-14  Eliot Dresselhaus  <eliot@sonic.net>

        PR target/27287
        * config/rs6000/spe.md (frob_di_df_2): Add m->r alternative.

2006-07-14  Ulrich Weigand  <uweigand@de.ibm.com>

        * config/s390/linux-unwind.h (s390_fallback_frame_state): Detect
        signal frames correctly even when the signal was installed with
        sa_restorer set.

2006-07-14  Carlos O'Donell  <carlos@codesourcery.com>

        * dbxout.c (dbxout_begin_prologue): Emit LFBB label at function start.
        (dbxout_function_end): Use local label LFBB. Remove hook
        DBX_OUTPUT_NFUN.
        (dbxout_source_line): Use local label LFBB.
        (dbxout_block): Likewise.
        (dbx_output_lbrac): Remove hook DBX_OUTPUT_LBRAC.
        (dbx_output_rbrac): Remove hook DBX_OUTPUT_RBRAC.
        * config/rs6000/linux64.h: Remove DBX_OUTPUT_LBRAC, DBX_OUTPUT_RBRAC,
        and DBX_OUTPUT_NFUN.

2006-07-13  Janis Johnson  <janis187@us.ibm.com>

        * doc/sourcebuild.texi (Test Directives): Document dg-shouldfail.

2006-07-13  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (cgraph_varpool_analyze_pending_decls): Call
        align_variable.
        * output.h (align_variable): Declare.
        * varasm.c (align_variable): Export.
        * value-prof.c (tree_value_profile_transformations): Recompute iterator
        when basic block changed.

2006-07-13  Nick Clifton  <nickc@redhat.com>

        * config/sh/sh.c (sh_reorg): Ignore deleted insns whilst
        walking the LOG_LINKS chain.

2006-07-12  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (C++ Dialect Options): Explain difference
        between -fvisibility-inlines-hidden and setting hidden
        visibility explicitly.

2006-07-12  Eric Christopher  <echristo@apple.com>

        * config/t-slibgcc-darwin (SHLIB_LINK): Don't munge stmp-lipo.
        (stmp-lipo): Depend on libgcc.a.

2006-07-12  Kazu Hirata  <kazu@codesourcery.com>

        * tree.c: Fix a comment typo.

2006-07-12  Naveen.H.S  <naveenh@kpitcummins.com>

        * config/m32c/muldiv.md (umulhisi3_c): Use only registers for
        dest.
        (umulhisi3_r): Likewise.

2006-07-12  Paolo Carlini  <pcarlini@suse.de>

        PR libstdc++/27878
        * doc/install.texi (mips-sgi-irix6): Add note about IRIX 6.5.x,
        x < 19, vs wchar_t support.

2006-07-12  Nick Clifton  <nickc@redhat.com>

        * config/sh/sh.h (SUBTARGET_ASM_RELAX_SPEC): Use -isa=sh4-up
        instead of -isa=sh4.

2006-07-12  Mike Stump  <mrs@apple.com>

        * protoize.c (edit_fn_definition): Add volatile to clean_text_p.

2006-07-10  Eric Christopher  <echristo@apple.com>

        * config/t-slibgcc-darwin: Rewrite.

2006-07-10  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

        PR bootstrap/20437
        * Makefile.in (configure): add missing aclocal.m4 and acinclude.m4
        dependencies.

2006-07-08  Matthias Klose  <doko@debian.org>

        * doc/sourcebuild.texi: Fix typo.

2006-07-07  Mike Stump  <mrs@apple.com>

        * toplev.c (process_options): Don't give -ffunction-sections may
        affect debugging warning for Mach-O.

2006-07-07  James E Wilson  <wilson@specifix.com>

        * config/mips/mips.md (cpu): Add sb1a.
        * config/mips/sb1.md: Modify almost all patterns to accept sb1a in
        addition to sb1.  Adjust comments to clarify SB-1A differences from
        SB-1.
        (ir_sb1a_load): New.  Modify bypasses to use it.
        (ir_sb1a_simple_alu): Likewise.
        * config/mips/mips.c (mips_cpu_info_table): Add sb1a.
        (mips_rtx_cost_data): Add PROCESSOR_SB1A support.
        (mips_issue_rate): Add PROCESSOR_SB1A.
        (mips_multipass_dfa_lookahead): Use TUNE_SB1 instead of PROCESSOR_SB1.
        * config/mips/mips.h (processor_type): Add PROCESSOR_SB1A.
        (TARGET_SB1): Add PROCESSOR_SB1A check.
        (TUNE_SB1): Likewise.

        * config/mips/mips-protos.h (mips_store_data_bypass_p): New.
        * config/mips/mips.c (mips_store_data_bypass_p): New.
        * config/mips/sb1.md: Use mips_store_data_bypass_p instead of
        store_data_bypass_p.

2006-07-08  Paul Brook  <paul@codesourcery.com>

        PR target/27991
        * config/m68k/m68k.md: Add r-m patterns for 68881 movxf.

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

        PR middle-end/28268
        * tree.h (build_one_cst): Declare.
        * tree.c (build_one_cst): New function.
        * tree-ssa-math-opts.c (get_constant_one): Remove.
        (insert_reciprocals): Use build_one_cst.
        * fold-const.c (fold_plusminus_mult): Likewise.

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

        * pointer-set.c (pointer_set_destroy): Correct whitespace.
        * cfgloopanal.c (dump_graph): Likewise.
        * dojump.c (discard_pending_stack_adjust): Likewise.
        * fix-header.c (TARGET_EXTRA_INCLUDE, TARGET_EXTRA_PRE_INCLUDES):
        Likewise.
        * alloc-pool.c (dump_alloc_pool_statistics): Likewise.
        * function.c (finalize_block_changes): Likewise.
        * gcc-common.c (ggc_free_overhead, dump_gcc_loc_statistics): Likewise.
        * tree-ssa-dce.c (clear_control_dependence_bitmap): Likewise.
        * rtl.c (dump_rtx_statistics): Likewise.
        * tree-ssa-structalias.c (sort_fieldstack, init_alias_heapvars):
        Likewise.
        * varray.c (dump_varray_statistics): Likewise.
        * dfp.c (encode_decimal32, decode_decimal32, encode_decimal64,
        decode_decimal64, encode_decimal128, decode_decimal128,
        decimal_real_to_decimal): Likewise.

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

        PR tree-optimization/28187
        * tree-vrp.c (vrp_operand_equal_p): New function.
        (vrp_bitmap_equal_p): Likewise.
        (update_value_range): Use them to compare old and new
        max and min values.

2006-07-06  Roger Sayle  <roger@eyesopen.com>

        * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Add
        a default case to switch statement to silence compiler warnings.

2006-07-06  Roger Sayle  <roger@eyesopen.com>

        PR target/27968
        * configure.ac (HAVE_AS_IX86_FFREEP): On x86 targets check whether
        the configured assembler supports the x87's ffreep mnemonic.
        * configure: Regenerate.
        * config.in: Regenerate.

        * config/i386/i386.c (output_387_ffreep): New function.
        (output_fp_compare): Use output_387_ffreep to emit ffreep insns.
        (output_387_reg_move): Likewise.

2006-07-06  Paul Eggert  <eggert@cs.ucla.edu>

        Port to hosts whose 'sort' and 'tail' implementations
        treat operands with leading '+' as file names, as POSIX
        has required since 2001.  However, make sure the code still
        works on pre-POSIX hosts.
        * Makefile.in (slowcompare): Port to POSIX 1003.1-2001,
        which says you should use "tail -c +N" rather than "tail +Nc".
        Fix a bug: the old code incorrectly skipped 15 bytes, not 16.

2006-07-06  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (scev_probably_wraps_p): Fix typo in
        argument name.

2006-07-06  David Edelsohn  <edelsohn@gnu.org>

        PR target/28150
        * config/rs6000/rs6000.c (rs6000_legitimate_address): Do not allow
        PRE_{INC,DEC} of TFmode.

2006-07-06  David Edelsohn  <edelsohn@gnu.org>
            Alan Modra  <amodra@bigpond.net.au>

        PR target/28170
        * config/rs6000/rs6000.c (insvdi_rshift_rlwimi_p): Correct shiftop
        bounds. Simplify.

2006-07-06  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        PR target/28285
        * config/alpha/predicates.md (alpha_swapped_comparison_operator):
        Remove duplicate gtu.

2006-07-05  Jason Merrill  <jason@redhat.com>

        PR c++/13983
        PR c++/17519
        * stor-layout.c (finish_record_layout): Copy TYPE_PACKED to variants.
        * c-common.c (handle_packed_attribute): So don't copy it here.
        * c-decl.c (finish_struct): Don't copy TYPE_ALIGN.

2006-07-05  Mike Stump  <mrs@apple.com>

        * doc/invoke.texi (Invoking G++): Clarify prose for g++.

2006-07-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/26146
        * config.gcc: Check with_cpu for i[34567]86--*-solaris2.1[0-9]*.

2006-07-05  Richard Guenther  <rguenther@suse.de>

        PR target/28158
        * config/i386/i386.md (*negdf2_1): Restrict pattern to
        TARGET_SSE2 targets if using SSE math.
        (*absdf2_1): Likewise.

2006-07-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/28162
        * fold-const.c (fold_binary): For (-A) * (-B) -> A * B
        make sure to convert the operands to the correct type.

2006-07-04  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/28218

        * tree-ssa-math-opts.c (execute_cse_reciprocals): Fix calls
        to calculate and free the dominator information.

2006-07-04  Peter O'Gorman  <peter@pogma.com>

        * mklibgcc.in: chmod 644 before ranlib during install.

2006-07-04  Andrew Stubbs <andrew.stubbs@st.com>
            J"orn Rennecke <joern.rennecke@st.com>

        * configure.ac (.eh_frame data check): Use diff -b.

2006-07-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR bootstrap/18058
        * Makefile.in (BUILD_RTL): Add build/vec.o.
        (build/gencondmd.o): Filter out -fkeep-inline-functions.
        (build/genextract): Delete.
        (build/genautomata): Likewise.

2006-07-04  Alan Modra  <amodra@bigpond.net.au>

        PR target/28207
        * config/rs6000/rs6000.c (function_arg_boundary): Double-word align
        128-bit IBM long doubles for ABI_V4.

2006-07-03  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (range_in_array_bounds_p): New predicate.
        * tree.h (range_in_array_bounds_p): Declare it.
        * tree-eh.c (tree_could_trap_p) <ARRAY_RANGE_REF>: Use it to
        return a less conservative answer.
        * tree-sra.c (struct sra_elt): Add new pointer field 'groups'
        and flag 'is_group'.
        (IS_ELEMENT_FOR_GROUP): New macro.
        (FOR_EACH_ACTUAL_CHILD): Likewise.
        (next_child_for_group): New helper function.
        (can_completely_scalarize_p): Take into account groups.
        (sra_hash_tree): Handle RANGE_EXPR.
        (sra_elt_eq): Likewise.
        (lookup_element): Be prepared for handling groups.
        (is_valid_const_index): Delete.
        (maybe_lookup_element_for_expr) <ARRAY_REF>: Use in_array_bounds_p
        instead of is_valid_const_index.
        <ARRAY_RANGE_REF>: New case.
        (sra_walk_expr) <ARRAY_REF>: Use in_array_bounds_p instead of
        is_valid_const_index.
        <ARRAY_RANGE_REF>: Do not unconditionally punt.
        (scan_dump): Dump info for groups too.
        (decide_instantiation_1): Likewise.
        (decide_block_copy): Assert that the element is not a group.
        Propagate decision to groups.
        (generate_one_element_ref): Handle RANGE_EXPR.
        (mark_no_warning): Iterate over actual childs.
        (generate_copy_inout): Likewise.
        (generate_element_copy): Likewise.
        (generate_element_zero): Likewise.
        (generate_element_init_1): Likewise.
        (dump_sra_elt_name): Handle RANGE_EXPR.

2006-07-03  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/26251
        * tree-ssa-threadupdate.c (redirection_block_p): New function.
        (thread_block): When optimizing for size refuse to thread jumps
        that would require duplication of blocks other than redirection
        blocks.

2006-07-03  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Fix thinko in previous check-in.
        * configure: Regenerate.

2006-07-03  Paolo Bonzini  <bonzini@gnu.org>

        PR other/27063
        * configure.ac (for lang...): Simplify nesting of conditionals.
        Test subdir_requires for non-enabled languages.  Move processing
        of lang_opt_files and lang_tree_fiels below that test.
        * configure: Regenerate.
        * doc/sourcebuild.texi (Front End Config): Document subdir_requires.

2006-07-01  Martin Michlmayr  <tbm@cyrius.com>

        * doc/gcov.texi (Invoking Gcov): Add a missing word.

2006-06-30  Kazu Hirata  <kazu@codesourcery.com>

        * cfgexpand.c, config/i386/i386.c, genpreds.c, tree-cfg.c: Fix
        comment typos.

2006-06-29  Jason Merrill  <jason@redhat.com>

        PR c++/26905
        PR c++/26612
        PR c++/27000
        PR c++/26984
        PR c++/19134
        * tree.c (build_decl_stat): Don't hande #pragma visibility here.
        * c-common.c (c_determine_visibility): Handle it here.
        * c-decl.c (finish_decl): Call c_determine_visibility for
        functions, too.
        * flags.h (enum symbol_visibility): Sort from most to least visibility.
        * tree.h: Likewise.
        * varasm.c (default_assemble_visibility): Likewise.
        * c-common.c (handle_visibility_attribute): Complain about trying
        to give visibility to an already defined class, or trying to change
        declared visibility. Always attach the attribute.

        PR c++/26905
        PR c++/21675
        PR c++/17470
        * attribs.c (decl_attributes): Ignore type-in-place attributes
        once the type has been defined.

2006-06-29  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/27428
        * c-lex.c (c_lex_with_flags) <CPP_N_INVALID>: Increment errorcount
        to indicate the cpplib has issued an error message for us.

2006-06-29  Asher Langton  <langton2@llnl.gov>

        PR target/25765
        * config/i386/i386.c (ix86_output_function_epilogue): Don't
        insert a label at the end of an function under Mach-O.

2006-06-29  Eric Christopher  <echristo@apple.com>
            Evan Cheng  <evan.cheng@apple.com>

        * predicates.md (vector_all_ones_operand): New.
        (nonimmediate_or_sse_const_operand): Ditto.
        * config/i386/i386-protos.h (standard_sse_constant_opcode): Declare.
        * config/i386/i386.c (standard_sse_constant_opcode): Define.
        (standard_sse_mode_p): Ditto.
        (standard_sse_constant_p): Add case for -1 vector.
        (ix86_expand_vector_move): Try to use.
        * sse.md (*mov<mode>_internal): Use nonimmediate_or_sse_const_operand.
        Call standard_sse_constant_opcode.
        (*movv4sf_internal): Ditto.
        (*movv2df_internal): Ditto.

2006-06-29  Roger Sayle  <roger@eyesopen.com>

        * genpreds.c (write_match_code_switch): Correctly use XSTR instead
        of XEXP to extract the operands of a MATCH_CODE rtx.

2006-06-28  Andrew Pinski  <pinskia@gmail.com>

        * tree.c (tree_size): Do not waste tail padding in
        struct tree_string and make the size be the same as
        build_string will generate.

2006-06-28  Jason Merrill  <jason@redhat.com>

        PR c++/27768
        * tree-ssa-alias.c (compute_flow_insensitive_aliasing): Add
        may_aliases already in the tag's annotations to the bitmap.

2006-06-28  Roger Sayle  <roger@eyesopen.com>

        * genpreds.c (write_predicate_stmts) <IOR>: Add missing break.

2006-06-28  Roger Sayle  <roger@eyesopen.com>

        * genpreds.c (generate_switch_p): New function.
        (add_mode_tests): Push the new mode test down inside an AND expr
        if this allows the switch-suitable MATCH_CODE to be near the root.
        (write_match_code_switch): New function to write a MATCH_CODE as
        a switch statement.
        (write_predicate_stmts): New function to write a predicate RTX
        expression as a sequence of statements.
        (write_one_predicate_function): Use write_predicate_stmts.
        (write_tm_constrs_h): Likewise.

2006-06-26  Fred Fish  <fnf@specifix.com>

        * config/mips/t-sb1: New file.
        * config.gcc (mipsisa64sb1-*-elf*): Add mips/t-sb1 to
        tmake_file list.

2006-06-26  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_print_operand): Fix sign-merging logic.

2006-06-26  Naveen H.S  <naveenh@kpitcummins.com>
            Jayant Sonar  <jayants@kpitcummins.com>
            Jaydeep Vipradas  <jaydeepv@kpitcummins.com>

        * config/m32c/addsub.md (addsi3, addsi3_1, addsi3_2): New.
        (subsi3, subsi3_1, subsi3_2): New.
        * config/m32c/bitops.md (andsi3, iorsi3, xorsi3): New.
        * config/m32c/mov.md (SI mov peephole): New.
        * config/m32c/m32.c (m32c_immd_dbl_mov): New.
        * config/m32c/m32c-protos.h (m32c_immd_dbl_mov): New.

2006-06-26  Olivier Hainque  <hainque@adacore.com>

        * function.c (aggregate_value_p): Honor DECL_BY_REFERENCE on
        a CALL_EXPR target function declaration.

2006-06-26  Richard Guenther  <rguenther@suse.de>

        * tree.c (build_string): Do not waste tail padding in
        struct tree_string.

2006-06-26  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (init_ggc): Add missing element to size_lookup
        table.

        Revert
        2006-06-23  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (init_ggc): Do not round up the extra_order_size_table
        sizes to MAX_ALIGNMENT.  Fix the size_lookup table to honour
        alignment requests instead.  Add verification code.
        Add struct tree_function_decl and struct tree_binfo size to
        extra_order_size_table.  Add missing element to size_lookup
        table.

2006-06-25  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/28151
        * fold-const.c (const_binop): Be prepared for self returning zero.
        Simplify code handling complex values.

2006-06-24  Olivier Hainque  <hainque@adacore.com>

        * gimplify.c (gimplify_scalar_mode_aggregate_compare): New function.
        (gimplify_expr): Use it for tcc_comparison of operands of non BLKmode
        aggregate types.

2006-06-24  Olivier Hainque  <hainque@adacore.com>

        * tree-ssa-loop-im.c (for_each_index): Handle ARRAY_RANGE_REF as
        ARRAY_REF, so have the callback called for the low bound expression.

2006-06-23  Janis Johnson  <janis187@us.ibm.com>

        * tree.h (DECIMAL_FLOAT_TYPE_P): New.
        * c-typeck.c (c_common_type): Disallow operations on decimal float
        types and other float types.
        * convert.c (convert_to_real): Don't ignore conversions involving
        decimal float types.

2006-06-23  Olivier Hainque  <hainque@adacore.com>

        * tree.c (max_int_size_in_bytes): New function, inspired from
        code in function.c:assign_temp.
        * tree.h (max_int_size_in_bytes): Declare.
        * function.c (assign_temp): Use it.
        * gimplify.c (create_tmp_var): Relax the assertions on the type
        properties, not mandating constant size any more.
        (force_constant_size): New static function.
        (gimple_add_tmp_var): Use it, forcing variable size to a
        constant upper bound if it is not constant on entry.

2006-06-23  Danny Smith   <dannysmith@users.sourceforge.net>

        PR target/27789
        * config/i386/winnt.c (ix86_handle_selectany_attribute): Move check
        for initialization and setting of one_only flag to ...
        (i386_pe_encode_section_info): ...here.
        (i386_pe_dllimport_p): Check for DECL_DLLIMPORT_P also.
        Recheck that the symbol has not been defined.

2006-06-23  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (init_ggc): Do not round up the extra_order_size_table
        sizes to MAX_ALIGNMENT.  Fix the size_lookup table to honour
        alignment requests instead.  Add verification code.
        Add struct tree_function_decl and struct tree_binfo size to
        extra_order_size_table.  Add missing element to size_lookup
        table.

2006-06-22  Roger Sayle  <roger@eyesopen.com>
            John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/28131
        * expr.c (expand_expr_real_1) <VECTOR_CST>: Check whether the
        call to lang_hooks.types.type_for_mode returned NULL_TREE.

2006-06-23  Ben Elliston  <bje@au.ibm.com>

        * dfp.c (decimal_to_decnumber): Do not use decNumberNegate to
        negate dn -- manipulate it directly.

2006-06-22  Roger Sayle  <roger@eyesopen.com>
            Steven Bosscher  <stevenb.gcc@gmail.com>

        PR target/27531
        * reload1.c (gen_reload): Call mark_jump_label on the new insns
        generated by gen_move_insn to add REG_LABEL notes if necessary.

2006-06-22  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm (MIN_ESA): Delete.
        (leaf_entry): Remove use of MIN_ESA.

2006-06-22  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/28121
        * cfgexpand.c (tree_expand_cfg): Clean EDGE_EXECUTABLE flag from
        the entry edge.

2006-06-21  DJ Delorie  <dj@redhat.com>

        * config/m32c/muldiv.md (mulhisi3_i): Only use registers for dest
        (TN-16C-A156A/E).
        (mulhisi3_r): Likewise.

2006-06-21  Richard Sandiford  <richard@codesourcery.com>

        PR middle-end/28034
        * coverage.c (coverage_counter_alloc): Leave the index type
        unspecified.
        (coverage_counter_alloc): Use null arguments for operands 2 and 3
        of the ARRAY_REF.

2006-06-21  Andrew Pinski  <pinskia@physics.uc.edu>

        * doc/invoke.texi (-fopenmp) Move to "Options Controlling C Dialect"
        section from the "Options for Code Generation Conventions".

2006-06-21  Richard Henderson  <rth@redhat.com>

        PR target/26347
        PR target/27082
        * config/alpha/predicates.md (small_symbolic_operand): Deny weak
        symbols.
        (global_symbolic_operand): Allow weak symbols, even if local_p.

2006-06-21  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): New function.
        (find_interesting_uses_address): Punt if above function returns true.

2006-06-21  Richard Guenther  <rguenther@suse.de>

        * configure: Regenerated.

2006-06-21  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.c (function_arg): Where one part of a
        complex argument is in registers and the other part in the stack,
        return a REG not a PARALLEL.

2006-06-21  Mark Mitchell  <mark@codesourcery.com>

        * configure.ac: Set gcc_gxx_include_dir to $target/include/c++
        when cross-compiling.  Do not substitute libstdcxx_incdir.
        * configure: Regenerated.

2006-06-21  Jakub Jelinek  <jakub@redhat.com>

        * varasm.c (mergeable_string_section): Check for embedded NULs and
        NUL termination in the first int_size_in_bytes (TREE_TYPE (decl))
        rather than TREE_STRING_LENGTH bytes.

2006-06-21  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (extra_order_size_table): Add var_ann_d,
        tree_ssa_name, bitmap_element and phi_node with 4 arguments
        sizes.

2006-06-21  Richrad Guenther  <rguenther@suse.de>

        * tree-ssa-loop-niter.c (simplify_using_initial_conditions):
        Limit iteration over the dominators.

2006-06-20  Roger Sayle  <roger@eyesopen.com>

        * config/mips/iris6.h (LIB_SPEC): Add support for -pthread.
        (SUBTARGET_CPP_SPEC): Define _REENTERANT if -pthread specified.

2006-06-20  Richard Guenther  <rguenther@suse.de>
        Michael Matz  <matz@suse.de>

        * alloc-pool.h (free_alloc_pool_if_empty): Prototype new
        function.
        * alloc-pool.c (free_alloc_pool_if_empty): New function.
        * et-forest.h (et_free_pools): Prototype new function.
        * et-forest.c (et_free_tree_force): Free parent occurrence.
        (et_free_pools): New function.
        * dominance.c (free_dominance_info): Free et-forest alloc
        pools.

2006-06-20  Roger Sayle  <roger@eyesopen.com>

        * expr.c (expand_expr_real_1) <VECTOR_CST>: For vector constants with
        integer modes, attempt to directly construct an integer constant.

        * fold-const.c (native_encode_vector): Determine the size of each
        element from the vector type instead of the first vector element.

        * tree.c (build_constructor_single): Mark a CONSTRUCTOR as constant,
        if all of its elements/components are constant.
        (build_constructor_from_list): Likewise.

2006-06-20  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27331
        * tree-data-ref.c (free_data_ref): New function.
        (create_data_ref): Fail if the data reference has unknown access
        function.
        (free_data_refs): Use free_data_ref.

2006-06-19  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/28075
        * tree-inline.c (setup_one_parameter): Strip useless
        type conversion before adding it to the IR.
        (declare_return_variable): Likewise.

2006-06-19  Martin Michlmayr  <tbm@cyrius.com>

        PR c/27149
        * c-common.c (c_common_truthvalue_conversion): Fix grammar in warning.

2006-06-19  Mike Stump  <mrs@apple.com>

        * tree.c (variably_modified_type_p): VM arguments don't make the
        type a VM type.

2006-06-19  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (try_combine_conversion): Strip useless
        type conversions after folding.

2006-06-19  Richard Guenther  <rguenther@suse.de>

        * ggc-page.c (extra_order_size_tab): Add entries with
        size of struct function and basic_block.
        (size_lookup): Extend to cover sizes up to 511.
        (ggc_alloc_stat): Adjust user.
        (ggc_pch_count_object): Likewise.
        (ggc_pch_alloc_object): Likewise.
        (ggc_pch_write_object): Likewise.

2006-06-19  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (implies_ge_p): New function.
        (derive_constant_upper_bound): Handle OP0 - CST in unsigned types
        correctly.

2006-06-19  Denis Chertykov  <denisc@overta.ru>

        * config/avr/libgcc.S : Correct my wrong previous commit.

2006-06-19  Roger Sayle  <roger@eyesopen.com>

        PR target/27861
        * expmed.c (expand_shift): On SHIFT_COUNT_TRUNCATED targets, we may
        have stripped a SUBREG from the shift count, so we may need to
        convert_to_mode back to the type's mode before calling make_tree.
        Use new_amount instead of amount to avoid expanding a tree twice.

2006-06-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/28045
        * fold-const.c (operand_equal_p): Check if the argument types
        have the same precision before stripping NOPs.

2006-06-19  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/27341
        * tree-cfg.c (gimplify_val): Call mark_new_vars_to_rename on the
        statement we get.
        * tree-complex.c (pass_lower_complex): Update SMT usage.

2006-06-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("doloop_si64", "doloop_si31", "doloop_di"):
        Add a new alternative to the constraint strings. Add move of
        operand 1 to 3 to the splitter definition.
        ("doloop_si_long"): Second contraint alternative removed.

2006-06-08  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (avr_have_movw_lpmx_p): Declare.
        (TARGET_CPU_CPP_BUILTINS): Add __AVR_HAVE_MOVW__ and
        __AVR_HAVE_LPMX__.
        (AVR_HAVE_MOVW) Define.
        (ASSEMBLER_DIALECT): Use AVR_HAVE_MOVW.
        (ASM_SPEC): Add avr25.
        (LINK_SPEC): Add avr25.
        * config/avr/avr.c (avr_have_movw_lpmx_p): Add.
        (base_arch_s): Add new member 'have_movw_lpmx'.
        (avr_arch_types): Init 'have_movw_lpmx'.
        (avr_mcu_types): Add 'avr25'. Move attiny13, attiny2313, attiny24,
        attiny44, attiny84, attiny25, attiny45, attiny85, attiny261,
        attiny461, attiny861 and at86rf401 in 'avr25' arhitecture.
        (avr_override_options): Init 'avr_have_movw_lpmx_p'.
        (output_movhi, output_movsisf, ashlsi3_out, avr_rtx_costs): Use
        AVR_HAVE_MOVW.
        (avr_file_start): Do not output '.arh' derective.
        * config/avr/libgcc.S (mov_l): Use __AVR_HAVE_MOVW__.
        (__do_copy_data): Use __AVR_HAVE_LPMX__.
        * config/avr/avr.md (mcu_enhanced): Delete.
        (mcu_have_movw): Define.
        (negsi2, extendhisi2, zero_extendhisi2): Use 'mcu_have_movw'.
        (call_insn, call_value_insn): Use 'call_insn' and __AVR_HAVE_MOVW__.
        * config/avr/t-avr(MULTILIB_OPTIONS, MULTILIB_DIRNAMES): Add avr25.
        (MULTILIB_MATCHES): Add attiny13, attiny2313, attiny24, attiny44,
        attiny84, attiny25, attiny45, attiny85, attiny261, attiny461,
        attiny861 and at86rf401 devices.

2006-06-18  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (MAX_LOOP_LENGTH): Define to be 2042 instead
        of 4096.

2006-06-17  Karl Berry  <karl@gnu.org>

        * doc/cpp.texi, doc/cppinternals.texi, doc/gcc.texi,
        doc/gccint.texi, doc/install.texi (@dircategory): Use
        "Software development" instead of "Programming", following
        the Free Software Directory.

2006-06-17  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/i386.c (legitimate_tls_address)
        <TARGET_GNU2_TLS>: Add tp after DTPOFF.
        * config/i386/i386.md (*tls_dynamic_gnu2_combine_32): Adjust.
        (*tls_dynamic_gnu2_combine_64): Likewise.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27116
        * fold-const.c (negate_expr_p): Do not introduce undefined
        overflow in negating INTEGER_CSTs.
        (fold_negate_expr): Rename from negate_expr.  Revert last
        change for folding BIT_NOT_EXPR.  Change semantics to
        return NULL_TREE for non-simplified negations.  Do not
        strip type conversions and unify type handling.
        (negate_expr): New function, wrap around fold_negate_expr
        but ensure building a tree always.  Strip type conversions
        here, fold to result type.
        (fold_unary): Use fold_negate_expr for folding NEGATE_EXPR.

2006-06-16  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/27802
        * reg-stack.c (subst_stack_regs): Handle noreturn function calls
        that (would) return their results in stack registers.

2006-06-16  Michael Matz  <matz@suse.de>
        Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_truthop): Only return new tree node if
        we canonicalized something.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        * function.h (enum function_frequency): Move declaration
        out of struct function.
        (struct function): Move bool fields and the enum to the bitfield
        section.  Reorder elements to avoid padding.  Remove unused
        fields left over from the RTL inliner removal.
        * function.c (free_after_compilation): Do not zero removed fields.
        * Makefile.in (ipa-reference.o): Add $(FUNCTION_H) dependency.
        (ipa-type-escape.o): Likewise.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        * cgraph.h (struct cgraph_local_info): Turn bool elements
        into a bitfield.
        (struct cgraph_node): Likewise.
        (struct cgraph_varpool_node): Likewise.

2006-06-15  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_truth_not_expr): Rename from
        invert_truthvalue.  Give it fold_* semantics to avoid
        generating garbage.
        (invert_truthvalue): New function.  Wrapper around
        fold_truth_not_expr.
        (optimize_minmax_comparison): Avoid creating garbage.
        (fold_unary): Use fold_truth_not_expr for folding
        TRUTH_NOT_EXPR.
        (fold_ternary): Replace uses of invert_truthvalue with
        fold_truth_not_expr where applicable.
        * tree.h (fold_truth_not_expr): Prototype.

2006-06-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27781
        * Makefile.in (ipa-pure-const.o): Add $(TARGET_H) dependency.
        * ipa-pure-const.c (target.h): Include.
        (analyze_function): Do not analyze functions that do not
        bind locally.

2006-06-15  Andrew MacLeod  <amacleod@redhat.com>

        PR middle-end/27793
        * tree-dfa.c (referenced_vars_dup_list): Remove.
        (find_referenced_vars): Remove assert.
        (referenced_var_check_and_insert): Replace dup list with assert.
        * tree-ssa.c (delete_tree_ssa): Remove dup list processing.
        * tree-flow.h (referenced_vars_dup_list): Remove extern decl.

2006-06-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (alias_get_name): Avoid creating
        extra unused identifiers if not dumping.
        (create_variable_info_for): Likewise.

2006-06-15  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (implies_nonnegative_p): New function.
        (derive_constant_upper_bound): Derive more precise upper bound in
        common cases.  Return type changed to double_int.
        (record_estimate): Reflect the changed return type of
        derive_constant_upper_bound.
        * double-int.c (double_int_zext, double_int_sext): Fix.

2006-06-15  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (CFLAGS): Get them from the toplevel or from the
        configure invocation.
        * configure: Regenerate.
        * Makefile.in (CFLAGS): Substitute value provided by configure.

2006-06-14  Mark Mitchell  <mark@codesourcery.com>

        PR c++/26559
        * c-common.h (c_finish_omp_atomic): Adjust declaration.
        * c-omp.c (c_finish_omp_atomic): Return the expression to perform,
        rather than calling add_stmt on it.
        * c-parser.c (c_parser_omp_atomic): Adjust accordingly.

2006-06-14  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR middle-end/27959
        * reload1.c (reload): Remove registers returned by update_eliminables
        from used_spill_regs.

2006-06-13  DJ Delorie  <dj@redhat.com>

        * config/m32c/muldiv.md (mulpsi3): Expect arbitrary constants.

2006-06-13  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Define HTMLS_BUILD, HTMLS_INSTALL,
        html__strip_dir, html__mkdir_p. Enhance install-html target.
        * configure.ac: AC_SUBST datarootdir, docdir and htmldir.
        * configure: Regenerate.

2006-06-13  Fariborz Jahanian <fjahanian@apple.com>

        * fold-const.c (fold_cond_expr_with_comparison): Check for
        Objective-C++ as language in deciding COND_EXPR transformation.

2006-06-06  J"orn Rennecke <joern.rennecke@st.com>

        PR target/28014:
        * config/sh/t-sh (LIB1ASMFUNCS): Add _udiv_qrnnd16
        * config/sh/sh.c (print_operand): Add !SHMEDIA functionality to 'M'.
        * config/sh/lib1funcs.h (SL, SL1): Define.
        * config/sh/lib1funcs.asm (__udiv_qrnnd16): New hidden function.
        * longlong.h (__sh__): Define umul_ppmm, udiv_qrnnd and sub_ddmmss.
        * config/sh/t-sh ($(T)unwind-dw2-Os-4-200.o): New rule.
        (OBJS_Os_4_200): New variable.
        ($(T)libgcc-Os-4-200.a): Use it.
        * sh.md (udivsi3): For TARGET_DIVIDE_CALL_TABLE, avoid function call
        when dividing 1 and/or by 0.

2006-06-13  Roger Sayle  <roger@eyesopen.com>

        * configure.ac (HAS_MCONTEXT_T_UNDERSCORES): Include <sys/signal.h>
        before <ucontext.h> to define sigset_t required by <sys/ucontext.h>.
        * configure: Regenerate.

2006-06-13  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (bfin_reorg_loops): Only call recog_memoized ()
        for real instruction.

2006-06-13  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR middle-end/26807
        * haifa-sched.c (check_cfg): Handle special case.

2006-06-13  Eric Botcazou  <ebotcazou@adacore.com>

        PR debug/26754
        * gimplify.c (declare_tmp_vars): Rename into declare_vars.
        Add debug_info parameter.  Chain the vars to the BLOCK instead
        of the BIND_EXPR if debug info are requested for them.
        (pop_gimplify_context): Adjust for above change.
        (gimple_add_tmp_var): Likewise.
        * tree-gimple.h (declare_tmp_vars): Rename into declare_vars.
        Add bool parameter.
        * tree-nested.c (convert_nonlocal_reference): Adjust for above change.
        (convert_local_reference): Likewise.
        (get_local_debug_decl): Set DECL_IGNORED_P on the original variable.
        (finalize_nesting_tree_1): Request that debug info be emitted
        for debug_var_chain.

2006-06-13  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (unlink_other_notes, unlink_line_notes): Fix the patch
        for PR target/27863.

2006-06-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27536
        * except.c (output_ttype): Expand type with EXPAND_INITIALIZER.

2006-06-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27830
        * tree-inline.c (copy_body_r): For copying the operand
        of an ADDR_EXPR make sure to fold &* afterwards.

2006-06-12  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_expr): Treat VIEW_CONVERT_EXPR like other
        lvalues in the fb_none case with side-effects.

2006-06-12  Kazu Hirata  <kazu@codesourcery.com>

        * tree-flow.h: Remove the prototype for
        compute_phi_arg_on_exit.
        * tree-ssa-loop-ivopts.c (protect_loop_closed_ssa_form_use,
        protect_loop_closed_ssa_form, compute_phi_arg_on_exit):
        Remove.

2006-06-12  Mark Shinwell  <shinwell@codesourcery.com>

        * builtins.c (expand_builtin_return_addr): Only use
        frame_pointer_rtx when count == 0 and we are expanding
        __builtin_return_address.

2006-06-12  Fred Fish  <fnf@specifix.com>

        * config/mips/mips.c (mips_file_start): Create special section
        ".gcc_compiled_longXX" for o64 ABI as well as EABI.

2006-06-11  Eric Christopher  <echristo@apple.com>

        PR middle-end/27948
        * stor-layout.c (place_field): Remove check for
        remaining_in_alignment when aligning at the end of a run.

2006-06-11  Eric Christopher  <echristo@apple.com>

        PR 27542
        * doc/extend.texi (Structure-Packing Pragmas): Document ms_struct
        pragma.

2006-06-11  Roger Sayle  <roger@eyesopen.com>

        PR target/27858
        Revert incorrect fix for PR target/27158
        2006-05-08  Roger Sayle  <roger@eyesopen.com>
        * reload.c (find_reloads_toplev): Only return the simplified SUBREG
        of a reg_equiv_constant if the result is a legitimate constant.

2006-06-11  Roger Sayle  <roger@eyesopen.com>

        PR target/27158
        * config/rs6000/rs6000.c (const_vector_elt_as_int): New function to
        extract a CONST_VECTOR element and interpret it as an integer.
        (vspltis_constant): Use const_vector_elt_as_int instead of the
        macro CONST_VECTOR_ELT in order to handle FP vector modes.
        * config/rs6000/predicates.md (easy_vector_const): Consider
        floating point ALTIVEC_VECTOR_MODEs via easy_altivec_constant.

2006-06-11  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR middle-end/27942
        * stor-layout.c (update_alignment_for_field): Don't add extra
        alignment for packed non-bitfield fields in ms_bitfield_layout_p
        code.

2006-06-09  Ralf Corsepius  <ralf.corsepius@rtems.org>

        * config/mips/t-rtems: Add EL/EB multilib variants.

2006-06-09  Mike Stump  <mrs@apple.com>

        * c-typeck.c (c_begin_vm_scope): Fix file_scope processing.

2006-06-09  David Daney  <ddaney@avtrex.com>

        * doc/install.texi: Add binutils version recommendation for mips-*-*.

2006-06-09  Andreas Krebbel  <krebbel1@de.ibm.com>

        * reload.c (find_reloads): Unset force_reload for 'X' constraint.

2006-06-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26998
        * tree-vrp.c (extract_range_from_unary_expr): For NEGATE_EXPR
        of signed types, only TYPE_MIN_VALUE is special, but for both,
        minimum and maximum value.  Likewise VR_ANTI_RANGE is special
        in this case, as is -fwrapv.

2006-06-08  Mike Stump  <mrs@apple.com>

        PR target/26427
        * config/darwin.c (darwin_asm_output_anchor): Disable
        -fsection-anchors on darwin for now.
        * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Likewise.
        * rs6000/rs6000.c (optimization_options): Likewise.

2006-06-08  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR target/27421
        * config/i386/i386.c (classify_argument): Skip fields with invalid
        types in unions.

2006-06-08  Steven Bosscher  <steven@gcc.gnu.org>

        * cse.c (flush_hash_table): Use VOIDmode to invalidate a REG.
        (cse_insn): Likewise for the stack_pointer_rtx.

2006-06-08  Roger Sayle  <roger@eyesopen.com>

        * tree-ssa-dom.c (record_conditions): Only record "unordered"
        conditions from floating point comparisons.

2006-06-08  Paolo Bonzini  <bonzini@gnu.org>

        PR middle-end/27733
        * expmed.c (struct alg_hash_entry): Fix type of field T
        to match synth_mult argument.
        (NUM_ALG_HASH_ENTRIES): Make it bigger for 64-bit HOST_WIDE_INT.

2006-06-08  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR target/27863
        * haifa-sched.c (unlink_other_notes, unlink_line_notes): Update basic
        block boundaries.

2006-06-08  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27116
        * fold-const.c (negate_expr_p): We can negate BIT_NOT_EXPR
        only, if overflow is defined and not trapping.
        (negate_expr): Likewise.

2006-06-07  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27872
        * tree-ssa-loop-manip.c (tree_unroll_loop): Set EDGE_IRREDUCIBLE_LOOP
        flag on the new exit edge of the unrolled loop.

2006-06-07  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26449
        * loop-invariant.c (move_invariant_reg): Fail if force_operand fails.

2006-06-07  Andrew MacLeod  <amacleod@redhat.com>

        PR middle-end/27793
        * tree-dfa.c (referenced_vars_dup_list): New.  List of duplicate
        referenced_variables with matching DECL_UID's.
        (find_referenced_vars): Make sure duplicate list is empty to start.
        (referenced_var_p): Remove.
        (referenced_var_check_and_insert): Renamed from referenced_var_insert.
        Check if var is in the list, and add if needed.  Update the duplicate
        list if a different var is in the list with the same DECL_UID.
        (add_referenced_var): Call routine to check and insert.
        * tree-ssa.c (delete_tree_ssa): Clear var_ann's on duplicates.
        * tree-flow.h (referenced_vars_dup_list): External declaration.

2006-06-07  Fred Fish  <fnf@specifix.com>

        * config/mips/t-elf (MULTILIB_MATCHES): Combine two entries
        into single entry.

2006-06-07  Paolo Bonzini  <bonzini@gnu.org>

        PR target/27390
        * reg-stack.c (subst_stack_regs_pat): Reorder resetting of
        the imaginary and real parts of a clobbered register.
        Emit insn to set the imaginary part.

2006-06-06  Peter Lemieszewski  <lemie@us.ibm.com>

        * config/s390/t-tpf (LIB2ADDEH): Include unwind-dw2-fde-glibc.c
        in lieu of unwind-dw2-fde.c.

2006-06-06  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * config/i386/mingw32.h (GOMP_SELF_SPECS): Define.

2006-06-06  Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/27842
        * config/rs6000/altivec.md (UNSPEC_VSLW): Remove.
        ("altivec_vspltisw_v4sf", "altivec_vslw_v4sf"): Remove.
        ("mulv4sf3", "absv4sf3", "negv4sf3"): Adapt users to use
        V4SImode temporaries and operations instead.

2006-06-06  Joseph S. Myers  <joseph@codesourcery.com>

        * config/mips/t-linux64 (tp-bit.c): Append to tp-bit.c, not
        dp-bit.c.

2006-06-06  Mike Stump  <mrs@apple.com>

        * Makefile.in: Rename to htmldir to build_htmldir to avoid
        installing during build.

2006-06-06  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): Change default
        value to 0.
        * doc/invoke.texi (max-sched-extend-regions-iters): Document.
        * config/ia64/ia64.c (params.h): New header.
        (ia64_optimization_options): New function to adjust parameters.
        * config/ia64/ia64-protos.h (ia64_optimization_options): New prototype.
        * config/ia64/ia64.h (OPTIMIZATION_OPTIONS): New macro.
        * config/ia64/t-ia64 (ia64.o): Add dependence from params.h .

2006-06-05  Kazu Hirata  <kazu@codesourcery.com>

        * stor-layout.c (debug_rli): Fix a typo in a debug message.

2006-06-05  Steve Ellcey  <sje@cup.hp.com>

        PR target/27051
        * config/ia64/ia64.c (ia64_select_rtx_section): Check TARGET_NO_SDATA.

2006-06-05  Dorit Nuzman  <dorit@il.ibm.com>
            Victor Kaplansky  <victork@il.ibm.com>

        PR tree-optimization/26360
        * tree-vectorizer.c (destroy_loop_vec_info): Remove (dead) pattern
        stmts.

2006-06-04  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/27382
        * c-common.c (c_common_truthvalue_conversion): Explicitly check
        for LABEL_DECL before calling DECL_WEAK.

        PR c/27150
        * c-typeck.c (build_binary_op): Likewise, explicitly check for
        LABEL_DECL and PARM_DECL.

2006-06-05  Joseph S. Myers  <joseph@codesourcery.com>

        PR c/25161
        PR c/27020
        * c-decl.c (grokdeclarator): Disallow variably modified types at
        file scope.  Avoid marking shared array type of constant size as
        VLA.

2006-06-04  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c++/27601
        * c-common.c (fold_offsetof_1): Handle static members.

2006-06-04 Eric Christopher <echristo@apple.com>

        * stor-layout.c (start_record_layout): Initialize remaining_in_alignment.
        (debug_rli): Output value for remaining_in_alignment.
        (update_alignment_for_field): Unconditionalize
        ms_bitfield_layout_p code. Handle non-bitfield fields. Remove
        extra alignment code.
        (place_field): Don't realign if ms_bitfield_layout_p. Unconditionalize
        ms_bitfield_layout_p code. Rewrite handling of structure fields.
        * tree.h (record_layout_info_s): Remove prev_packed.
        * doc/extend.texi (ms_struct): Add documentation of format.

2006-06-04  Mark Shinwell  <shinwell@codesourcery.com>

        * tree.h: Declare folding_initializer.
        * builtins.c (fold_builtin_constant_p): Give definite answer
        if folding inside an initializer.
        * fold-const.c: Define folding_initializer.
        (START_FOLD_INIT): Save and then set folding_initializer.
        (END_FOLD_INIT): Restore folding_initializer.

2006-06-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27039
        * fold-const.c (fold_comparison): Handle pointer comparison
        again for all comparison codes.  Compare offsets in signed
        size type.
        (fold_binary): Move code from here.

2006-06-03  Roger Sayle  <roger@eyesopen.com>

        PR target/26223
        * config/i386/i386.c (construct_container): Split static issued_error
        flag into issued_sse_arg_error, issued_sse_ret_error and
        issued_x87_ret_error.  Issue a daignostic if the x86-64 ABI
        requires the use of x87 registers and the user explicitly
        specified the -mno-80387 command line option.

2006-06-02  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/host-darwin.c (sigaltstack): Protect prototype with
        HAVE_DECL_SIGALTSTACK.
        (MC_FLD): New.
        (segv_handler): Use MC_FLD.
        * configure.ac: Check for a sigaltstack declaration.
        Compute HAS_MCONTEXT_T_UNDERSCORES on Darwin.
        * configure: Regenerate.
        * config.in: Regenerate.

2006-06-03  J"orn Rennecke <joern.rennecke@st.com>

        PR other/27850
        * Makefile.in (stmp-fixinc): Fix typo.

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

        * fold-const.c (fold_unary) <CONJ_EXPR>: Ensure folded expressions
        are type correct.  Clean-up.
        <REALPART_EXPR>: Likewise.  Optimize creal(~z) as creal(z).
        <IMAGPART_EXPR>: Likewise.  Optimize cimag(~z) as -cimag(z).

2006-06-01  DJ Delorie  <dj@redhat.com>

        * config/v850/v850.h (ASM_OUTPUT_ADDR_DIFF_ELT): Disabled the
        shift, as we've disabled the "switch" insn that needs it.

2006-06-01  Per Bothner  <bothner@bothner.com>

        Suppress extra '#1 <built-in> or '#1 <command line>' on -dD output.
        * c-opts.c (finish_options): Use internal line 0 for <command-line>.
        * c-ppoutput.c (cb_define): Don't increment line 0.

2006-06-01  Pete Steinmetz  <steinmtz@us.ibm.com>

        * doc/invoke.texi: Add cpu_type power6.
        * config.gcc: Add cpu_type power6.
        * config/rs6000/rs6000.c (rs6000_override_options): Alias power6
        to power5+ with Altivec.
        * config/rs6000/aix52.h (ASM_CPU_SPEC): Add power6.
        * config/rs6000/rs6000.h (ASM_CPU_SPEC): Add power6.

2006-05-30  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (SET_ASM_OP): Define.

2006-06-01  Kazu Hirata  <kazu@codesourcery.com>

        * config/bfin/bfin.c: Fix comment typos.

2006-06-01  Paolo Bonzini  <bonzini@gnu.org>

        PR 25453
        * doc/install.texi: Document --enable-bootstrap and
        --disable-bootstrap.

2006-06-01  Paolo Bonzini  <bonzini@gnu.org>

        * doc/install.texi: Document that InfoZIP can replace jar.

2006-05-31  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_expand_fp_absneg_operator): When SSE
        isn't available, directly generate the simpler x87 patterns without
        the (use (const_int 0)).
        * config/i386/i386.md (*negsf2_1): Enable pre-reload if the SSE
        implementation isn't available.
        (*negdf2_1): Likewise.
        (*negxf2_1): XF mode negation is always done using the x87.
        (*abssf2_1, *absdf2_1, *absxf2_1): Likewise^3 for fabs.

2006-05-31  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_cabs): Delete prototype.  Require an
        additional FNDECL argument.  Optimize cabs(-z) and cabs(~z) as
        cabs(z).
        (fold_builtin_decl) <BUILT_IN_CABS>: Update fold_builtin_cabs call.

2006-05-31  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin-protos.h (bfin_hardware_loop): Declare.
        * config/bfin/bfin.c (basic-block.h): Include.
        (struct machine_function): New.
        (bfin_init_machine_status): New.
        (override_options): Initialize init_machine_status.
        (bfin_hardware_loop): New.
        (MAX_LOOP_DEPTH, MAX_LOOP_LENGTH): Define.
        (DEF_VEC_P (loop_info)): New.
        (DEF_VEC_ALLOC_P (loop_info,heap)): New.
        (struct loop_info): New.
        (loop_info): New typedef.
        (struct loop_work): New.
        (loop_work): New typedef.
        (DEF_VEC_O (loop_work)): New.
        (DEF_VEC_ALLOC_O (loop_work,heap)): New.
        (bfin_dump_loops): New.
        (bfin_bb_in_loop): New.
        (bfin_scan_loop): New.
        (bfin_optimize_loop): New.
        (bfin_reorg_loops): New.
        (bfin_reorg): Use bfin_reorg_loops.
        * config/bfin/bfin.h (FIRST_PSEUDO_REGISTER): Adjust for adding
        loop registers.
        (I_REGNO_P): Simplify.
        (DP_REGNO_P, DPREG_P): New macros.
        (REGISTER_NAMES, FIXED_REGISTERS, CALL_USED_REGISTERS,
        REG_ALLOC_ORDER): Add LT0, LT1, LC0, LC1, LB0, LB1.
        (enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
        Add LT_REGS, LC_REGS, LB_REGS.
        (REG_CLASS_FROM_LETTER): Add 't' for LT_REGS, 'k' for LC_REGS,
        'l' for LB_REGS.
        (REGNO_REG_CLASS): Deal with loop registers.
        * config/bfin/bfin.md: Add comment for 't', 'k', 'l' constraint
        letters.
        (REG_LT0, REG_LT1, REG_LC0, REG_LC1, REG_LB0, REG_LB1):
        New constants for loop registers.
        (UNSPEC_LSETUP_END): New.
        (seq_insns): New define_attr. Set it for appropriate insns.
        (movsi_insn): Add alternatives for move from/to
        loop count registers.
        (doloop_end): New define_expand.
        (loop_end): New define_insn.
        (define_split for bad doloop_end): New.
        (lsetup_with_autoinit): New define_insn.
        (lsetup_without_autoinit): New define_insn.
        (rep_movsi, rep_movhi): Clobber LT1, LC1, LB1.
        * config/bfin/predicates.md (lc_register_operand): New.
        (lt_register_operand): New.
        (lb_register_operand): New.
        (nondp_register_operand): New.
        (nondp_reg_or_memory_operand): New.
        * doc/md.texi: Document Blackfin new 't', 'k', 'l' constraint letters.

2006-05-31  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (bfin_delegitimize_address): New.
        (TARGET_DELEGITIMIZE_ADDRESS): Define.

2006-05-31  Daniel Jacobowitz  <dan@codesourcery.com>

        * Makefile.in (CATALOGS): Add po/ prefix.
        * configure: Regenerated.

2006-05-31  Richard Earnshaw  <richard.earnshaw@arm.com>

        PR target/27829
        * arm.c (arm_print_operand case 'S'): Validate that the operand is
        a shift operand before calling shift_op.  Avoid redundant call of
        shift_op.

2006-05-30  Naveen.H.S  <naveenh@kpitcummins.com>
            DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_expand_insv): Check that the value
        we're inserting is a singlt-bit constant.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation_1) <LSHIFTRT>: Cast
        width to HOST_WIDE_INT to avoid comparison warnings on some targets.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/23452
        * fold-const.c (fold_mult_zconjz): New subroutine of fold_binary,
        to optimize z * conj(z) as realpart(z)^2 + imagpart(z)^2.
        (fold_binary) <MULT_EXPR>: Call fold_mult_zconjz for integral
        complex values and with -ffast-math for FP complex values.

2006-05-30  Kazu Hirata  <kazu@codesourcery.com>

        * c-common.h: Remove the prototype for yyparse.
        * rtl.h: Remove the prototype for init_loop.

2006-05-30  Andreas Krebbel  <krebbel1@de.ibm.com>

        * cse.c (validate_canon_reg, cse_insn): Don't change insns without
        calling recog.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_binary_operation): Unfactor the shift
        and rotate cases.
        <LSHIFTRT>: Optimize (lshiftrt (clz X) C) as (eq X 0) where C is
        log2(GET_MODE_BITSIZE(X)) on targets with the appropriate semantics.

2006-05-30  Dirk Mueller  <dmueller@suse.de>

        PR c/27273
        * c-common.c (convert_and_check): Only track TREE_CONSTANT_OVERFLOW
        for CONSTANT_CLASS_P expresisons.

2006-05-30  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/27718
        * c-typeck.c (c_expr_sizeof_type): Handle invalid types.

2006-05-30  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27779
        * tree-data-ref.c (analyze_siv_subscript_cst_affine): Use
        initial_condition instead of CHREC_LEFT.

2006-05-30  Steven Bosscher  <stevenb.gcc@gmail.com>

        * config/m32r/m32r.h (DBX_OUTPUT_SOURCE_LINE): Fix type of begin_label.
        * config/m32r/initfini.c (__do_global_dtors, __do_global_ctors):
        Make prototypes ISO C90.

2006-05-30  Mircea Namolaru  <namolaru@il.ibm.com>
            Leehod Baruch    <leehod.baruch@weizmann.ac.il>

        * see.c (see_analyze_one_def): Correct check.
        (see_get_extension_data): Check if extension is parallel.
        (see_get_extension_reg): Likewise.

2006-05-30  Uros Bizjak  <uros@kss-loka.si>

        PR target/27790
        * config/i386/i386.c (ix86_expand_int_vcond): Force cop0
        into register for (code == GTU).

2006-05-29  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/24964
        * simplify-rtx.c (simplify_binary_operation_1): Add function comment.
        <MULT>: Minor clean-up.  Don't convert x*-1.0 into -x if we honor
        signaling NaNs.  Optimize -x*-x as x*x for all float modes, and
        abs(x)*abs(x) as x*x for scalar floating point modes.

2006-05-29  Sebastian Pop  <pop@cri.ensmp.fr>

        PR middle-end/27745
        * lambda-code.c (perfect_nestify): Don't copy statements
        in the inner loop: move them to the inner loop header.

2006-05-29  Diego Novillo  <dnovillo@redhat.com>

        PR 26237
        * c-tree.texi: Document OpenMP directives and clauses.

2006-05-29  Kazu Hirata  <kazu@codesourcery.com>

        * varasm.c (globalize_decl): Fix indentation.

2006-05-29  Diego Novillo  <dnovillo@redhat.com>

        PR 26242
        * doc/passes.texi: Add documentation for pass_vrp, pass_ipa_pta,
        pass_fre, pass_store_ccp, pass_copy_prop,
        pass_store_copy_prop, pass_merge_phi, pass_nrv,
        pass_return_slot, pass_object_size, pass_lim,
        pass_linear_transform, pass_empty_loop, pass_complete_unroll,
        pass_loop_prefetch and pass_stdarg.

2005-05-29  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.opt (mfdpic): New option.
        * config/bfin/t-bfin-elf (EXTRA_PARTS): Add crtbeginS.o and crtendS.o.
        (EXTRA_MULTILIB_PARTS): Likewise.
        (CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS): Use -fpic.
        (MULTILIB_OPTIONS, MULTILIB_EXCEPTIONS): Build one extra -mfdpic
        multilib.
        * config/bfin/elf.h (STARTFILE_SPEC): Don't link in crt0.o if -shared.
        (CRT_CALL_STATIC_FUNCTION): New.
        * config/bfin/uclinux.h (STARTFILE_SPEC): Don't link in crt0.o if
        -shared.
        (CRT_CALL_STATIC_FUNCTION): New.
        * config/bfin/bfin.c (legitimize_pic_address): Now static.  Handle
        FD-PIC moves.
        (n_pregs_to_save): PIC register doesn't need to be saved with FD-PIC.
        (print_operand): Handle UNSPEC_MOVE_FDPIC and UNSPEC_FUNCDESC_GOT17M4.
        (initialize_trampoline): Changed to handle FD-PIC code generation.
        (expand_move): If TARGET_FDPIC, use emit_pic_move as needed.
        (bfin_expand_call): Generate FD-PIC calls if TARGET_FDPIC.
        (override_options): Disallow -mid-shared-library -mfdpic combination.
        Can't do unaligned ops if FD-PIC.
        Turn off flag_pic if trying to generate non-id-shared-library
        non-fdpic code, since it's not supported.
        (bfin_assemble_integer): New function.
        (TARGET_ASM_INTEGER): Define.
        * config/bfin/crti.s (__init, __fini): Save P3 on the stack if
        __BFIN_FDPIC__.
        * config/bfin/crtn.s: Restore them.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __BFIN_FDPIC__
        if TARGET_FDPIC.
        (DRIVER_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS,
        LINK_GCC_C_SEQUENCE_SPEC, ASM_SPEC, LINK_SPEC): New macros.
        (FDPIC_FPTR_REGNO, FDPIC_REGNO, OUR_FDPIC_REG): New macros.
        (TRAMPOLINE_SIZE, TRAMPOLINE_TEMPLATE): Adjust for FD-PIC.
        (CONDITIONAL_REGISTER_USAGE): If TARGET_FDPIC, FDPIC_REGNO is
        call-used.
        (enum reg_class, REG_CLASS_CONTENTS, REG_CLASS_NAMES): Add
        FDPIC_REGS and FDPIC_FPTR_REGS.
        (REG_CLASS_FROM_LETTER): Use 'Z' and 'Y' for them.
        * config/bfin/bfin.md (UNSPEC_MOVE_FDPIC, UNSPEC_FUNCDESC_GOT17M4,
        UNSPEC_VOLATILE_LOAD_FUNCDESC): New constants.
        (load_funcdescsi): New pattern.
        (call_symbol_fdpic, sibcall_symbol_fdpic, call_value_symbol_fdpic,
        sibcall_value_symbol_fdpic, call_insn_fdpic, sibcall_insn_fdpic,
        call_value_insn_fdpic, sibcall_value_insn_fdpic): New patterns.

2006-05-29  Kazu Hirata  <kazu@codesourcery.com>

        * gcse.c, rtlanal.c: Remove obsolete comments associated with
        loop.c.

        * config/bfin/bfin.h (PARM_BOUNDRY, STACK_BOUNDRY): Remove.

        * tree-flow.h: Remove the prototype for add_type_alias.
        * tree-ssa-alias.c (add_type_alias): Remove.

2006-05-28  Kazu Hirata  <kazu@codesourcery.com>

        * cfgcleanup.c, cfgexpand.c, cgraphunit.c, config/arm/arm.c,
        config/fr30/fr30.md, config/i386/i386-interix.h,
        config/i386/i386.c, config/i386/i386.md, config/sh/superh.h,
        config/sh/superh64.h, config/v850/v850.c, df-core.c,
        df-problems.c, df.h, except.c, final.c, haifa-sched.c,
        lambda-code.c, libgcc2.h, omp-low.c, optabs.c, predict.c,
        reload.c, tree-flow.h, tree-outof-ssa.c, tree-ssa-dce.c,
        tree-ssa-pre.c, tree-vect-transform.c: Fix comment typos.
        Follow spelling conventions.
        * doc/invoke.texi, doc/rtl.texi, doc/tm.texi: Fix typos.
        Follow spelling conventions.

2006-05-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27773
        * fold-const.c (fold_plusminus_mult_expr): Use fold_convert
        to produce a constant of value 1 of generic type.

2006-05-27  Dirk Mueller  <dmueller@suse.de>

        * cgraphunit.c (decide_is_function_needed): Fix wrong
        PR reference.

2006-05-26  Ulrich Weigand  <uweigand@de.ibm.com>

        PR rtl-optimization/27661
        * reload.c (find_reloads): When reloading a VOIDmode constant
        as address due to an EXTRA_MEMORY_CONSTRAINT or 'o' constraint,
        use Pmode as mode of the reload register.

2006-05-26  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (Optimize Options): Document that -funit-at-a-time
        is enabled at -O and above.

2006-05-26  Steven Bosscher  <steven@gcc.gnu.org>

        PR target/27571
        * config/alpha/alpha.c (alpha_does_function_need_gp): Skip jump
        table data.

2006-05-25  Mark Mitchell  <mark@codesourcery.com>

        PR c++/20103
        * gimplify.c (gimplify_decl_expr): Do not call gimple_add_tmp_var
        for anonymous variables explicitly declared by front ends.

2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-structalias.h (PTR_IS_REF_ALL): New macro.
        (struct alias_info): Add new field ref_all_symbol_mem_tag.
        * tree-ssa-alias.c (compute_may_aliases): If the program contains
        ref-all pointers, run a finalization pass for them.
        (compute_flow_insensitive_aliasing): Skip ref-all pointers.
        (finalize_ref_all_pointers): New function.
        (is_escape_site): Return ESCAPE_BAD_CAST for conversion from a
        regular pointer type to a ref-all pointer type.
        (get_tmt_for): Return the special memory tag for ref-all pointers.

2006-05-25  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27743
        * fold-const.c (fold_binary): Do not look at the stripped
        op0 for (a OP c1) OP c2 to a OP (c1+c2) shift optimization.

2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (extract_range_from_assert): Set the range to VARYING
        for LT and GT if the computed range is effectively empty.

2006-05-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/27627
        * pa/pa-modes.def: Use mips_single_format, mips_double_format and
        mips_quad_format formats instead of ieee_single_format,
        ieee_double_format and ieee_quad_format formats, respectively.

2006-05-24  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27639
        PR tree-optimization/26719
        * tree-vrp.c (adjust_range_with_scev): Use scev_direction and adjust
        call to scev_probably_wraps_p.
        * tree-ssa-loop-niter.c (compare_trees, convert_step_widening,
        used_in_pointer_arithmetic_p, convert_step): Removed.
        (nowrap_type_p): New function.
        (scev_probably_wraps_p): Rewritten.
        * tree-scalar-evolution.c (instantiate_parameters_1): Do not call
        chrec_convert if chrec_convert_aggressive might have been used.
        * tree-chrec.c (convert_affine_scev, chrec_convert_1,
        scev_direction): New functions.
        (chrec_convert): Changed to a wrapper over chrec_convert_1.
        * tree-ssa-loop-ivopts.c (idx_find_step): Use convert_affine_scev
        instead of convert_step.
        * tree-flow.h (scev_probably_wraps_p): Declaration changed.
        (convert_step): Declaration removed.
        (convert_affine_scev, nowrap_type_p, scev_direction): Declare.

2006-05-23  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-core.c: Added to header comments.
        * df.h (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info,
        df_ur_bb_info, df_urec_bb_info): Added comments.
        * df-problems (df_ref_bitmap, ru, rd, lr, ur,
        urec, ri problems): Fixed header comments.
        (df_ru_transfer_function): Fixed in-out set dyslexia when copying
        code from df_rd_transfer_function.

2006-05-23  Richard Sandiford  <richard@codesourcery.com>

        * libgcc2.c (LIBGCC2_MAX_UNITS_PER_WORD): New macro.
        (LIBGCC2_UNITS_PER_WORD): Use LIBGCC2_MAX_UNITS_PER_WORD rather than
        MIN_UNITS_PER_WORD to set the default.  Also use it in the guard.

2006-05-23  Joseph Myers  <joseph@codesourcery.com>

        * expr.c (undefined_operand_subword_p): New.
        (emit_move_multi_word): Do not generate move from undefined bits
        of a paradoxical subreg.

2006-05-23  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/27736
        * combine.c (replaced_rhs_value): New variable.
        (combine_instructions): Set it.
        (distribute_notes): When distributing a note in replaced_rhs_insn,
        check whether the value was used in replaced_rhs_value.

2006-05-23  Andrew MacLeod  <amacleod@redhat.com>

        PR c++/26757
        * tree-ssa-loop-im.c (determine_invariantness_stmt): Use
        add_referenced_var instead of add_referenced_tmp_var.
        * tree-complex.c (create_one_component_var): Use add_referenced_var.
        * tree-ssa-loop-manip.c (create_iv, tree_unroll_loop): Use
        add_referenced_var.
        * tree-tailcall.c (adjust_accumulator_values, adjust_return_value,
        tree_optimize_tail_calls_1): Use add_referenced_var.
        * tree-ssa-loop-ivopts.c (create_new_iv): Use add_referenced_var.
        * tree-ssa-alias.c (create_memory_tag, create_global_var, create_sft):
        Use add_referenced_var.
        * tree-if-conv.c (ifc_temp_var): Use add_referenced_var.
        * gimplify.c (force_gimple_operand): Use add_referenced_var.
        * tree-ssa-phiopt.c (conditional_replacement, abs_replacement):
        Use add_referenced_var.
        * tree-dfa.c (struct walk_state): Remove.
        (find_referenced_vars): Remove walk state and vars_found hash table.
        (make_rename_temp): Use add_referenced_var.
        (find_vars_r): Pass less parameters to add_referenced_var.
        (referenced_var_p): New.  Is var in referenced_var hash table.
        (referenced_var_insert): Assert var isn't already in hash table.
        (add_referenced_var): Don't need walk_state parameter.  Add var if it
        isn't already in the hash table.
        (add_referenced_tmp_var): Remove.
        (find_new_referenced_vars_1): Use add_referenced_var.
        * tree-ssa-pre.c (create_expression_by_pieces,
        insert_into_preds_of_block, insert_extra_phis, realify_fake_stores):
        Use add_referenced_var.
        * tree-vect-patterns.c (vect_pattern_recog_1): Use add_referenced_var.
        * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
        lambda_loopnest_to_gcc_loopnest, perfect_nestify): Use
        add_referenced_var.
        * tree-vect-transform.c (vect_create_addr_base_for_vector_ref,
        vect_create_data_ref_ptr, vect_create_destination_var,
        vect_init_vector, vect_build_loop_niters,
        vect_generate_tmps_on_preheader, vect_update_ivs_after_vectorizer,
        vect_gen_niters_for_prolog_loop, vect_create_cond_for_align_checks):
        Use add_referenced_var.
        * tree-outof-ssa.c (create_temp): Use add_referenced_var.
        * tree-flow.h (add_referenced_tmp_var): Remove prototype
        (add_referenced_var): Add prototype.
        * tree-ssa-structalias.c (get_constraint_for,
        intra_create_variable_infos): Use add_referenced_var.

2006-05-23  Alexandre Oliva  <aoliva@redhat.com>

        * simplify-rtx.c (simplify_subreg): Adjust REG_OFFSET for
        big-endian paradoxical subregs.
        * var-tracking.c (struct micro_operation_def): Document that,
        for modify micro operations, insn is the subsequent instruction.
        (var_reg_delete_and_set, var_mem_delete_and_set): Split into...
        (var_reg_set, var_mem_set): ... new functions.
        (add_stores): Record subsequent insn.
        (compute_bb_dataflow): Use new functions for MO_USE.
        (emit_notes_in_bb): Use new functions for MO_USE.  Emit use
        notes after the insn, and modify notes before the insn known
        to be the subsequent one.
        (vt_initialize): Invert sorting of MO_CLOBBERs and MO_SETs.

2006-05-23  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27696
        * config/i386/i386.c (ix86_expand_builtin): Use
        gen_sse3_monitor64 for TARGET_64BIT.

2006-05-22  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/26375
        PR rtl-optimization/26855
        * df-problems (df_ru_bb_local_compute_process_def): Removed update
        to gen set.
        (df_ru_bb_local_compute): Reversed statements and removed bogus
        comment explaining why they should be in wrong order.
        (df_ru_dump, df_rd_dump): Enhanced debug info.
        * modulo-sched.c (sms_schedule, tree_opt_pass pass_sms): Enhanced
        debug info.
        * ddg.c (add_deps_for_def): Converted use of reaching defs to
        reaching uses and fixed space problem.

2006-05-23  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Also nested functions
        and functions declared inline can be optimized out at -O0.

2006-05-22  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Configuration): Remove reference to CrossGCC
        FAQ which was gone.
        (Building): Ditto.

2006-05-22  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27266
        * config/i386/i386.c (ix86_expand_branch): Jump to simple if
        ix86_compare_emitted is non-NULL.

2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c++/27451
        * stmt.c (expand_asm_operands): Skip asm statement with erroneous
        clobbers.

2006-05-22  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/25514
        * combine.c (replaced_rhs_insn): New variable.
        (combine_instructions): Set replaced_rhs_insn when trying to replace
        a SET_SRC with a REG_EQUAL note.
        (distribute_notes): Use replaced_rhs_insn when determining the live
        range of a REG_DEAD register.

2006-18-05  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
            Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for attiny261,
        attiny461, attiny861, attiny25, attiny45, attiny85, attiny24,
        attiny44, attiny84, at90pwm2, at90pwm3, atmega165p, atmega169p,
        atmega164p, atmega324p, atmega644p, atmega644, atmega329,
        atmega3290, atmega649, atmega6490, atmega406, atmega640,
        atmega1280, atmega1281, at90can32, at90can64, at90usb646,
        at90usb647, at90usb1286 and at90usb1287 devices.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2006-05-22  Richard Sandiford  <richard@codesourcery.com>

        * mklibgcc.in (lib2funcs): Remove _floatdidf from initial assignment.

2006-05-22  Richard Guenther  <rguenther@suse.de>

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

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

2006-05-22  Richard Guenther  <rguenther@suse.de>

        Revert
        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.

2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/27420
        * c-common.c (self_promoting_args_p): Skip erroneous args.

        PR c/26818
        * c-decl.c (finish_struct): Skip erroneous fields.

2006-05-22  Nick Clifton  <nickc@redhat.com>

        * config/cris/cris.opt (march): Remove VarExists attribute.
        (max-stackframe=): Likewise.

2006-05-22  Kazu Hirata  <kazu@codesourcery.com>

        * doc/rtl.texi: Fix a typo.
        * see.c: Fix comment typos.

        * tree-ssa-structalias.h (alias_info): Remove num_references.

2006-05-21  Mike Stump  <mrs@apple.com>

        * config/darwin-c.c (BAD): Conditionalize on OPT_Wpragmas.
        (BAD2): Add.
        (darwin_pragma_options): Use BAD instead.
        (darwin_pragma_unused): Likewise.
        (darwin_pragma_ms_struct): Likewise.

2006-05-21  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.md (floatsitf2): Remove constraints.

2006-05-21  Kazu Hirata  <kazu@codesourcery.com>

        PR rtl-optimization/27671
        * simplify-rtx.c (simplify_relational_operation_1): Fix
        simplifications of (eq/ne (xor x y) y) and
        (eq/ne (xor x y) x).

        PR tree-optimization/26622.
        * fold-const.c (fold_ternary) <COND_EXPR>: Call fold_convert
        on arg1.

2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>

        * tree-cfg.c: Prune whitespace.
        (debug_tree_cfg): Point to correct header containing the
        TDF_* defines.

2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR middle-end/25776
        * cgraphunit.c (verify_cgraph_node): Typo in error message.

2006-05-20  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/25776
        * cgraphunit.c (cgraph_optimize): Don't run ipa passes if error
        or sorry count is non zero.

2006-05-20  Andreas Schwab  <schwab@suse.de>

        * config/pa/pa-linux.h (STRING_ASM_OP): Prepend and append a tab.

2006-05-19  Daniel Berlin  <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/26855

        * df-scan.c (mw_reg_pool, mw_link_pool): New allocation pools for
        multiword refs.
        (df_scan_alloc): Added code to properly handle multiword hard
        registers and add all_blocks parameter.
        (df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added
        code to properly handle multiword hard registers.
        (df_rescan_blocks): Added code to remove deleted blocks from
        bitmap.
        (df_ref_create_structure, df_ref_record): Added code to properly
        handle subregs.
        (df_ref_record_1): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER
        and set DF_REF_PARTIAL.
        (df_defs_record): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER.
        (df_uses_record): Added DF_REF_PARTIAL for subreg.
        (df_scan_add_problem): Added flags parameter.
        (df_ref_create_structure): Changed switching structure.
        (df_bb_refs_record): Fixed case where duplicate artificial refs
        were created.  Changed location of flags.
        (df_record_entry_block_defs): Added code to make stack pointer
        live in entry block.  Refined cases where frame pointer is needed.
        Changed location of flags.
        (df_record_exit_block_uses, df_insn_refs_record): Changed location of flags.
        (df_set_state): Removed function.
        (df_grow_reg_info, df_reg_chain_unlink, df_ref_remove,
        df_insn_create_insn_record, df_insn_refs_delete,
        df_ref_create_structure): Formatting changes.
        * df-core.c (df_mvs_dump, df_set_flags, df_clear_flags,
        df_delete_basic_block): New function.
        (df_init): Changed location of flags.
        (df_add_problem): Added flags parameter and the way flags are
        processed.
        (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref,
        debug_df_chain): Improved debugging output.
        (df_insn_debug, df_insn_uid_debug): Added multiword reg support.
        (df_refs_chain_dump): Removed df parameter.
        (df_iterative_dataflow): Added consistency check.
        (df_prune_to_subcfg): Made public.
        (df_analyze_problem): Added blocks_to_init parameter and made
        public.
        (df_ref_record, df_bb_refs_record, df_mark_reg,
         df_record_exit_block_uses): Whitespace changes.
        (df_dump): Whitespace changes.
        * df.h: Some reordering to remove forward references.
        (df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL,
        DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New fields.
        (df_ref_flags.DF_REF_CLOBBER): Deleted field.
        (dataflow.flags): New field.
        (df.flag): Deleted field.
        (df_alloc_function): Added additional bitmap parameter.
        (df_dependent_problem_function): New type.
        (df_problem.changeable_flags): New field.
        (df_ref_flags.DF_REF_DIES_AFTER_THIS_USE, DF_SCAN_INITIAL,
        DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed.
        (df_mw_hardreg): New struct.
        (DF_INSN_UID_MWS): New macro.
        (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df
        parameter.
        (df_add_problem, df_ru_add_problem, df_rd_add_problem,
        df_lr_add_problem, df_ur_add_problem, df_urec_add_problem,
        df_ri_add_problem, df_scan_add_problem): Added flags parameter.
        (df_set_state): Removed function.
        (df_set_flags, df_clear_flags, df_delete_basic_block) New functions.
        * df-problems.c (df_chain_dump): Removed df parameter.
        (df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc,
        df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks
        parameter.
        (df_ru_alloc, df_rd_alloc): Now resets all blocks.
        (df_rd_bb_local_compute_process_def, df_ur_bb_local_compute,
        df_chain_create_bb, df_create_unused_note, df_ri_bb_compute):
        Split DF_REF_CLOBBER into DF_REF_MAY_CLOBBER and
        DF_REF_MUST_CLOBBER cases.
        (df_ru_bb_local_compute_process_def,
        df_rd_bb_local_compute_process_def, df_lr_bb_local_compute,
        df_lr_bb_local_compute, df_ur_bb_local_compute,
        df_chain_create_bb): Made subreg aware.
        (df_ru_bb_local_compute, df_rd_bb_local_compute,
        df_lr_bb_local_compute, df_lr_bb_local_compute,
        df_chain_create_bb): Cleanup to use proper macros.
        (df_ur_local_finalize, df_urec_local_finalize): Removed unnecessary
        code to fixup bitvectors.
        (df_ri_alloc): Cleared lifetime.
        (df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw,
        df_create_unused_note): New function.
        (df_ri_bb_compute, df_ri_compute): Added code to create/update
        REG_DEAD and REG_UNUSED notes as well as register information.
        (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump,
        df_chains_dump): Fixed crash if problem was never run.
        (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
        df_ur_add_problem, df_urec_add_problem, df_chain_add_problem,
        df_ri_add_problem): Processes flags in uniform manner.
        (df_ru_alloc, df_ru_local_compute, df_ru_confluence_n, df_ru_free,
        df_ru_dump, df_rd_local_compute, df_rd_confluence_n, df_rd_free,
        df_rd_dump, df_urec_free_bb_info): Formatting changes.
        (df_ru_free_bb_info, df_ru_bb_local_compute, df_ru_dump,
        df_rd_free_bb_info, df_rd_bb_local_compute_process_def,
        df_rd_bb_local_compute, df_rd_dump, df_lr_free_bb_info,
        df_lr_bb_local_compute, df_lr_local_compute, df_ur_free_bb_info,
        df_ur_dump, df_urec_free_bb_info, df_urec_dump,
        df_chain_create_bb, df_ri_bb_compute): Whitespace changes.
        * modulo-sched.c (sms_schedule): Added flag parameter to calls.
        * see.c (see_initialize_data): Ditto.
        * final.c (rest_of_clean_state) Added regstack_completed.
        * rtl.h (regstack_completed): Ditto.
        * reg-stack.c (regstack_completed): Ditto.

2006-05-19  Mike Stump  <mrs@apple.com>

        * c-tree.h (default_conversion): Remove.
        * c-common.h (default_conversion): Add.

2006-05-19  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-vrp.c (valid_value_p): New function.
        (adjust_range_with_scev): Fail if the value of bound is not
        simple.

2006-05-19  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/linux-unwind.h: Include <asm/unistd.h>
        (mips_fallback_frame_state): Use syscall numbers to determine
        the appropriate li instruction for the current ABI.  Only use
        __NR_sigreturn for o32.

2006-05-19  Nicolas Setton  <setton@adacore.com>

        * langhooks.h (struct lang_hooks): Add dwarf_name language hook.
        * langhooks.c (lhd_dwarf_name): New function.
        * langhooks-def.h (lhd_dwarf_name): Declare.
        (LANG_HOOKS_DWARF_NAME): New macro, defaults to lhd_dwarf_name.
        * dwarf2out.c (dwarf2_name): Use the dwarf_name language hook.
        * ada/misc.c (gnat_dwarf_name): New function.
        (LANG_HOOKS_DWARF_NAME): Define to gnat_dwarf_name.

2006-05-19  Richard Sandiford  <richard@codesourcery.com>

        * libgcc2.c (MIN_UNITS_PER_WORD): Move default definition from
        libgcc2.h.
        (LIBGCC2_UNITS_PER_WORD): Provide default definition, using old
        MIN_UNITS_PER_WORD logic from libgcc2.h.  Do nothing if
        LIBGCC2_UNITS_PER_WORD > MIN_UNITS_PER_WORD.
        * libgcc2.h (MIN_UNITS_PER_WORD): Remove definition from here.
        Use LIBGCC2_UNITS_PER_WORD rather than MIN_UNITS_PER_WORD to
        determine the size of Wtype, etc.
        * mklibgcc.in (LIB2_SIDITI_CONV_FUNCS): New argument.
        (swfloatfuncs): New variable.
        (dwfloatfuncs): Likewise.
        (lib2funcs): Remove floating-point conversion functions from
        initial assignment.  Use LIB2_SIDITI_CONV_FUNCS to determine
        the set of conversion routines needed.  Allow entries to specify
        an object name, filename and word size.  Update users accordingly.
        * Makefile.in (libgcc.mk): Pass LIB2_SIDITI_CONV_FUNCS.
        * config/mips/t-mips (LIB2_SIDITI_CONV_FUNCS): Define.

        Revert:

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

        PR target/22209
        * 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.

2006-05-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/t-hpux-shlib (SHLIB_LINK): Remove `-lc'.
        * pa/pa-hpux11.h (LIB_SPEC): Update comment.

2006-05-18  Mike Stump  <mrs@apple.com>

        Fix up vla, vm and [*] sematics.

        PR c/18740
        PR c/7948
        PR c/25802
        PR c/27673
        * c-tree.h (struct c_arg_info): Add had_vla_unspec.
        (c_vla_unspec_p): Add.
        (c_vla_type_p): Add.
        * c-decl.c (struct c_scope): Add had_vla_unspec.
        (build_array_declarator): Add support for [*].
        (grokdeclarator): Likewise.
        (grokparms): Likewise.
        (get_parm_info): Likewise.
        * c-objc-common.c (c_vla_unspec_p): Likewise.
        * c-objc-common.h (LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P): Likewise.
        * c-parser.c (c_parser_typeof_specifier): Evaluate arguments to
        typeof when argument is a variably modified type not inside sizeof or alignof.
        (c_parser_direct_declarator_inner): Propagate errors.
        (c_parser_sizeof_expression): Add support for [*].
        (c_parser_parms_declarator): Initialize had_vla_unspec.
        (c_parser_parms_list_declarator): Likewise.
        * c-typeck.c (c_vla_type_p): Add.
        (composite_type): Add support for vla compositing.
        (comptypes_internal): Add support for vla compatibility.
        (c_expr_sizeof_expr): Evaluate vla arguments.
        * tree.c (variably_modified_type_p): Update comment for [*].

2006-05-18  Michael Matz  <matz@suse.de>

        PR target/27599
        * config.host: Make assignments to host_xmake_file cumulative.
        * config.host (*-darwin*): Test $host, not $target.

2006-05-12  Stuart Hastings  <stuart@apple.com>

        * config/i386/i386.opt (-mstackrealign): New flag.
        * config/i386/i386.c (force_align_arg_pointer): New attribute.
        (ix86_handle_cconv_attribute): Emit error when
        force_align_arg_pointer attribute collides with too many regparms.
        (ix86_function_regparm): Limit regparms when used with
        force_align_arg_pointer attribute.  (ix86_internal_arg_pointer):
        Support stack-realigning prologue in non-main functions.  Emit
        warning for nested functions under -mstackrealign, emit error for
        nested functions with force_align_arg_pointer attribute.
        * doc/extend.texi (force_align_arg_pointer): Document it.
        * doc/invoke.texi (-mstackrealign): Document it.

2006-05-17  Kazu Hirata  <kazu@codesourcery.com>

        PR rtl-optimization/27477
        * combine.c (try_combine): Don't split a parallel consisting
        of two sets into two individual sets if both sets reference
        cc0.

2006-05-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/arm/arm.opt (target_fpe_name): Remove VarExists.
        * config/rs6000/rs6000.opt (TARGET_NO_FP_IN_TOC): Likewise.

        * doc/options.texi (VarExists): Updated.

2006-05-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * unwind-dw2.c: Add declarations for uw_update_context and
        uw_frame_state_for.
        * pa/hpux-unwind.h (pa_fallback_frame_state): When an export stub is
        detected, advance frame state and context once to skip over stub.

2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>

        PR middle-end/20256
        PR middle-end/26435
        * tree-loop-linear.c (linear_transform_loops): Don't test perfect_nest_p.
        Call rewrite_into_loop_closed_ssa only when something changed.
        * lambda.h (gcc_loopnest_to_lambda_loopnest): Update declaration.
        * lambda-code.c (can_convert_to_perfect_nest): Declared.
        (gcc_loopnest_to_lambda_loopnest): Removed need_perfect_nest parameter.
        Test for perfect_nest_p here.  Fix formating.
        (replace_uses_equiv_to_x_with_y): Fix formating.
        (stmt_uses_op): Removed.
        (can_convert_to_perfect_nest): Removed loopivs parameter.
        Complete the test by checking the scalar dependences.
        (perfect_nestify): Remove the test for can_convert_to_perfect_nest.
        Fix formating.

2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR bootstrap/22541
        From Dan Kegel <dank@kegel.com>:
        * Makefile.in: Strip "dir/../" combinations from SYSTEM_INCLUDE_DIR.

2006-05-17  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (variably_modified_type_p) <ARRAY_TYPE>: Return true
        if the element type is variably modified without recursing.

2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>

        PR middle-end/27332
        * tree-loop-linear.c (try_interchange_loops): Test for
        no data dependences.

2006-05-17  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27548
        * tree-scalar-evolution.c (scev_const_prop): Do not prolong life
        range of ssa names that appear on abnormal edges.
        * tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Export.
        * tree-flow.h (contains_abnormal_ssa_name_p): Declare.

2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR middle-end/27620
        * expr.c (safe_from_p): Handle CONSTRUCTOR again.

2006-05-17  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27415
        * tree.h (OMP_PARALLEL_COMBINED): Define.
        * gimplify.c (struct gimplify_omp_ctx): Add is_combined_parallel field.
        (new_omp_context): Add is_combined_parallel argument.
        (gimplify_scan_omp_clauses): Add in_combined_parallel argument, adjust
        new_omp_context caller.
        (gimplify_omp_parallel, gimplify_omp_for, gimplify_omp_workshare):
        Adjust gimplify_scan_omp_clauses callers.
        (omp_is_private): Issue errors if iteration variable is firstprivate
        or reduction in the current context.
        * c-parser.c (c_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
        on combined parallel workshare constructs.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        * Makefile.in (GCC_OBJS): Replace options.o with gcc-options.o.
        (gcc-options.o): New rule.

        * optc-gen.awk: Protect variables for gcc-options.o with
        #ifdef GCC_DRIVER/#endif.

2006-05-16  Daniel Berlin <dberlin@dberlin.org>

        Fix PR tree-optimization/27373
        * tree-ssa-forwprop.c: (forward_propagate_addr_expr_1): Add argument.
         (forward_propagate_addr_expr): Update call.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/options.texi: Move the Negative option.

2006-05-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22303
        * tree-ssa-ccp.c (fold_const_aggregate_ref): Handle reads
        from STRING_CSTs.
        (evaluate_stmt): Fall back to fold_const_aggregate_ref, if
        ccp_fold did not simplify the statement.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/26885
        * Makefile.in (GCC_OBJS): New.
        (OBJS-common): Add opts-common.o.
        (xgcc$(exeext)): Replace gcc.o with $(GCC_OBJS).
        (cpp$(exeext)): Likewise.
        (gcc.o): Also depend on opts.h.
        (opts-common.o): New.

        * common.opt (gcoff): Add Negative(gdwarf-2).
        (gdwarf-2): Add Negative(gstabs).
        (gstabs): Add Negative(gstabs+).
        (gstabs+): Add Negative(gvms).
        (gvms): Add Negative(gxcoff).
        (gxcoff): Add Negative(gxcoff+).
        (gxcoff+): Add Negative(gcoff).
        * config/i386/i386.opt (m32): Add Negative(m64).
        (m64): Add Negative(m32).

        * doc/options.texi: Document the Negative option.

        * gcc.c: Include "opts.h".
        (main): Call prune_options after expandargv.

        * optc-gen.awk: Generate common declarations for all flag
        variables in options.c. Output the neg_index field.

        * opts.c (find_opt): Moved to ...
        * opts-common.c: Here. New file.

        * opts.h (cl_option): Add a neg_index field.
        (find_opt): New.
        (prune_options): Likewise.

2006-05-16  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27573
        * omp-low.c (expand_omp_parallel): Don't assert
        .OMP_DATA_I = &.OMP_DATA_O is the first statement in the block,
        instead search for it.

        PR c/27499
        * gimplify.c (gimplify_omp_for): Remove assertion that iteration var
        is signed.

2006-05-16  Andreas Schwab  <schwab@suse.de>

        * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Add missing @end
        defmac.

2006-05-15  Roger Sayle  <roger@eyesopen.com>

        PR target/26600
        * config/i386/i386.c (legitimate_constant_p) <CONST_DOUBLE>: TImode
        integer constants other than zero are only legitimate on TARGET_64BIT.
        <CONST_VECTOR> Only zero vectors are legitimate.
        (ix86_cannot_force_const_mem): Integral and vector constants can
        always be put in the constant pool.

2006-05-16  DJ Delorie  <dj@redhat.com>

        * crtstuff.c (__dso_handle): Set section from
        TARGET_LBIGCC_SDATA_SECTION if defined.
        * doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Document.
        * config/mips/mips.h (TARGET_LIBGCC_SDATA_SECTION): Define.

2006-05-16  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/27599
        * config.host (i[34567]86-*-mingw*): Append i386/x-mingw32 to
        host_xmake_file.

2006-05-16  Ben Elliston  <bje@au.ibm.com>

        * tree-cfg.c (split_edge_bb_loc): Remove unused variable `src'.

2006-05-15  Per Bothner  <per@bothner.com>

        * tree.c: (last_annotated_node): Use source_locus typedef.
        This permits bootstrapping with --enable-mapped-location.

2006-05-15  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/26830
        * tree-into-ssa.c (struct ssa_name_info): Add age field.
        (info_for_ssa_name, current_info_for_ssa_name_age,
        blocks_to_update): New variables.
        (get_ssa_name_ann): Use info_for_ssa_name instead of SSA_NAME_AUX.
        (clear_ssa_name_info, initialize_flags_in_bb,
        mark_block_for_update): New functions.
        (mark_def_sites, rewrite_stmt): Assert that blocks_to_update is NULL.
        (insert_phi_nodes_for, mark_use_interesting, prepare_block_for_update,
        prepare_def_site_for): Use mark_block_for_update.
        (mark_def_interesting): Assert that the processed block is marked in
        blocks_to_update.  Do not take blocks argument.
        (prepare_use_sites_for, prepare_names_to_update): Do not take blocks
        argument.
        (rewrite_update_init_block, rewrite_update_stmt): Only process
        blocks with statements to rewrite.
        (delete_update_ssa): Do not clear SSA_NAME_AUX.
        (update_ssa): Initialize and free blocks_to_update.  Do not
        clear flags on statements.  Do not use blocks bitmap.
        * tree.h (SSA_NAME_AUX): Removed.
        (struct tree_ssa_name): Removed aux field.
        * print-tree.c (print_node): Do not print SSA_NAME_AUX.

2006-05-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27603
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined):
        Do computations in original type.

2006-05-15  Mircea Namolaru  <namolaru@il.ibm.com>

        * see.c: Code style changes such as redundant paranthesis,
        redundant intialization of local variables etc.
        (see_main): Declared now as static.
        * doc/invoke.texi: Update that -fsee is not enabled by
        default at -O3.

2006-05-15  Jakub Jelinek  <jakub@redhat.com>

        * omp-low.c (check_omp_nesting_restrictions): New function.
        (scan_omp_1): Call it.

        PR middle-end/27416
        * omp-low.c (build_outer_var_ref): If VAR is reference in orphaned
        construct, return *VAR.

2006-05-14  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/27406
        * bt-load.c (migrate_btr_def): Skip the block having abnormal
        edges.

2006-05-14  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/27538
        * combine.c (expand_compound_operation): Call gen_lowpart
        before calling simplify_shift_const.

2006-05-14  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/22563
        * expmed.c (store_fixed_bit_field): When using AND and IOR to store
        a fixed width bitfield, always force the intermediates into psuedos.

2006-05-14  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR 27501
        * mkconfig.sh: Use operator = instead of == for test.

2006-05-13  Nick Clifton  <nickc@redhat.com>

        * dwarf2out.c (dbx_reg_number): Check return value from
        LEAF_REG_REMAP and only use it if it is valid.
        (multiple_reg_loc_descriptor): Likewise.

2006-05-13  Richard Guenther  <rguenther@suse.de>

        * config.host <i[34567]86-*-cygwin*>: Append i386/x-cygwin to
        host_xmake_file.

2006-05-13  Steven Bosscher  <stevenb.gcc@gmail.com>

        * df-core.c (df_bb_regno_last_use_find): Do not look for dataflow
        information attached to non-INSNs such as NOTEs.
        (df_bb_regno_first_def_find, df_bb_regno_last_def_find): Likewise.

2006-05-12  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_const_ok_for_constraint_p): Disallow -4G for
        On contraint.
        * config/s390/s390.md: Adjust comment describing On constraint.

2006-05-11  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Don't force always_inline
        to be output at -O0.

2006-05-11  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR middle-end/27384
        * fold-const.c (size_binop): Move sanity check for arguments to
        the beginning of the function.

        PR middle-end/27488
        * fold-const.c (tree_expr_nonnegative_p): Return early on invalid
        expression.

2006-05-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27529
        * fold-const.c (fold_unary): Handle intermediate conversion
        to a pointer type like intermediate conversion to an integer
        type in folding of (T1)(T2)var to var.
        Match the code to the comment in the final conversion for
        (T1)(T2)var to (T1)var regarding to type precision.  Rather
        than disallow T1 being of pointer type, assert that both T1
        and var are of pointer type or not.  Make sure not to fall
        over the frontends lazyness wrt array to pointer decay though.

2006-05-10  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (arm_struct_value_rtx): Delete.
        (TARGET_STRUCT_VALUE_RTX): Use the default definition.
        (arm_init_cumulative_args): Always initialize nregs to zero.

2006-05-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27532
        * tree-object-size.c (plus_expr_object_size): Fix typo.

2006-05-10  Kazu Hirata  <kazu@codesourcery.com>

        PR target/24949
        * config/m68k/m68k.md (ashrdi_const32, ashrdi_const32_mem,
        ashrdi_const, ashrdi3): Use a scratch register.

2006-05-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27302
        * fold-const.c (operand_equal_p): For two comparisons,
        try comparison of one comparison code swapped if that yields
        the same code.

2006-05-10  Ben Elliston  <bje@au.ibm.com>

        * tree-pretty-print.c (pretty_print_string): No need to handle
        '\0' as a special character.

        * tree.h: Include "hashtab.h".
        (iterative_hash_expr): Use hashval_t in its prototype.
        * Makefile.in (TREE_H): Add $(HASHTAB_H).

2006-05-09  Steve Ellcey  <sje@cup.hp.com>

        PR bootstrap/26872
        * config.gcc (hppa[12]*-*-hpux10*): Set gas to yes.
        (hppa*64*-*-hpux11*): Ditto.
        (hppa[12]*-*-hpux11*): Ditto.

2006-05-09  David Edelsohn  <edelsohn@gnu.org>

        PR target/26545
        * config/rs6000/aix41.h (TARGET_64BIT): Define.

2006-05-09  Michael Matz  <matz@suse.de>

        * config.host (<i[34567]86-*-*, x86_64-*-*>): Set
        host_extra_gcc_objs and host_xmake_file.
        (<*-*-linux*>): Don't overwrite host_xmake_file.
        * gcc.c (static_spec_functions): Add EXTRA_SPEC_FUNCTIONS.
        * config/i386/i386.h (EXTRA_SPEC_FUNCTIONS): Define.
        (host_detect_local_cpu): Declare.
        (CC1_CPU_SPEC): Add -march=native and -mtune=native cases.
        * config/i386/i386.c (override_options): Handle -mtune=native
        as -mtune=generic.
        * config/i386/x-i386: New file.
        * config/i386/driver-i386.c: New file.
        * doc/invoke.texi (<i386 and x86-64 Options>): Describe
        cpu-type "native".

2006-05-09  Dirk Mueller  <dmueller@suse.de>
        Richard Guenther  <rguenther@suse.de>

        PR middle-end/27498
        * fold-const.c (fold_read_from_constant_string): Relax check
        for matching types to matching modes.

2006-05-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/27335
        * loop-unroll.c (peel_loops_completely): Use loops->parray to walk the
        loops.

2006-05-08  Chao-ying Fu  <fu@mips.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-ps-3d.md (scc_ps, s<code>_ps): New patterns.
        (vcondv2sf, sminv2sf3, smaxv2sf3): Likewise.
        * config/mips/mips.md (UNSPEC_SCC): New constant.
        * config/mips/mips-protos.h (mips_expand_vcondv2sf): Declare.
        * config/mips/mips.c (mips_reverse_fp_cond_p): New function.
        (mips_emit_compare): Use it.
        (mips_expand_vcondv2sf): New function.

2006-05-08  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/27093
        * tree-ssa-alias.c (recalculate_used_alone): Mark variables for
        renaming when they become not-used_alone.

2006-05-08  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * hpux-unwind.h (pa_fallback_frame_state): Handle return parameter
        relocation and relocation stubs.

2006-05-08  Eric Christopher  <echristo@apple.com>

        * unwind-dw2-fde-darwin.c (examine_objects): Only check data
        section for ppc.

2006-05-08  Jan Hubicka  <jh@suse.cz>

        PR middle-end/24561
        * cgraphunit.c (decide_is_function_needed): When not optimizing even
        unused static functions are needed.

2006-05-08  Roger Sayle  <roger@eyesopen.com>

        PR target/27158
        * reload.c (find_reloads_toplev): Only return the simplified SUBREG
        of a reg_equiv_constant if the result is a legitimate constant.

2006-05-08  Uros Bizjak  <uros@kss-loka.si>

        PR target/27277
        * config/i386/i386.c (ix86_rtx_costs) [FLOAT_EXTEND]: For
        standard 80387 constants, raise the cost to prevent
        compress_float_constant() to generate load from memory.

2006-05-08  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/constraints.md (c): Fix a typo.

        * see.c, tree-flow-inline.h, tree-phinodes.c: Fix comment
        typos.

2006-05-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/24879
        * config/i386/pmmintrin.h (_mm_monitor): Remove macro. Use
        inline function.
        (_mm_mwait): Likewise.

        * config/i386/sse.md (sse3_mwait): Replace "mwait\t%0, %1" with
        "mwait".
        (sse3_monitor): Make it 32bit only.
        (sse3_monitor64): New. 64bit monitor.

2006-05-07  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR target/27421
        * config/i386/i386.c (classify_argument): Skip fields with invalid
        types.

2006-05-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27409
        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Do not try to find zero-sized subvars.

2006-05-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27136
        * tree-ssa-loop-niter.c (get_val_for): Correct function
        comment, assert requirements.
        (loop_niter_by_eval): Stop processing if the iterated
        value did not simplify.

2006-05-07  Mircea Namolaru  <namolaru@il.ibm.com>

        * opts.c (flag_see): remove its setting at -O3.

2006-05-07  Richard Earnshaw  <rearnsha@arm.com>

        * genpeep.c (main): Make insn-peep.c depend on flags.h.
        * arm/constraints.md: New file.
        * arm.h (REG_CLASS_FROM_LETTER_P): Delete.
        (CONST_OK_FOR_ARM_LETTER, CONST_OK_FOR_THUMB_LETTER)
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_ARM_LETTER)
        (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT_STR_ARM)
        (CONSTRAINT_LEN, EXTRA_CONSTRAINT_THUMB, EXTRA_CONSTRAINT_STR)
        (EXTRA_MEMORY_CONSTRAINT): Likewise.
        * arm.md: Include constraints.md.
        (thumb_movsi_insn): Use satisfies_constraint_J.
        (movhi, movqi): Use satisfies_constraint_I.

2006-04-29 Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (CRT_BINUTILS_SPECS): Fixed crt* file name
        for atmeg a645 device.

2006-05-06   Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27151
        * tree-vect-transform.c (vectorizable_condition): Punt on
        values that have a different type than the condition.

2006-05-03  Aldy Hernandez  <aldyh@redhat.com>

        PR/21391
        * c-parser.c (c_parser_cast_expression): Only insert casts into
        hash table if pointer.
        * function.c (used_types_insert_helper): Rename from
        used_types_insert.
        (used_types_insert): Call used_types_insert_helper.
        * function.h (used_types_insert): Accept only one argument.

2006-05-05  David Edelsohn  <edesohn@gnu.org>

        * config/rs6000/rs6000.md: Mark all "X" constraints for clobbered
        scratch with output modifier.

2006-05-04  David Edelsohn  <edelsohn@gnu.org>

        PR target/26481
        * config/rs6000/rs6000.md (stmsi_power): Mark clobber constraint
        with output modifier.

2006-05-04  Richard Sandiford  <richard@codesourcery.com>

        PR target/26765
        * config/mips/mips.c (mips_symbolic_address_p): Return true
        for SYMBOL_TLSGD, SYMBOL_TLSLDM, SYMBOL_DTPREL, SYMBOL_TPREL,
        SYMBOL_GOTTPREL, and SYMBOL_TLS.

2006-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/14287
        PR tree-optimization/14844
        PR tree-optimization/19792
        PR tree-optimization/21608
        PR tree-optimization/27090
        * tree-ssa-pre.c (try_combine_conversion): New function.
        (compute_avail): After constructing the value-handle
        expression, use try_combine_conversion to combine NOP_EXPRs
        with previous value-handle expressions and use the result if it
        is available.

2006-05-04  Joseph S. Myers  <joseph@codesourcery.com>

        * config/mips/linux64.h (DWARF_OFFSET_SIZE): Remove.

2006-05-04  Jan Hubicka  <jh@suse.cz>

        PR middle-end/25962
        * cgraphunit.c (verify_cgraph_node): Fix cgraph_hash testing.

2006-05-04  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/predicates.md (const01_rtx): Tell generator programs
        that this only matches CONST_INTs.  All users changed to VOIDmode
        operands.

        * config/bfin/bfin.c: Include "optabs.h".
        (bfin_rtx_costs): Some costs for vector operations, to allow combine
        to do more work.
        (enum bfin_builtins): Add a number of fractional and vector builtins.
        (bfin_init_builtins): Likewise.
        (struct builtin_description, bdesc_2arg, bdesc_1arg): New.
        (safe_vector_operand, bfin_expand_binop_builtin,
        bfin_expand_unop_builtin): New functions.
        (bfin_expand_builtin): Handle the new builtins.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
        __ADSPBLACKFIN__.

2006-05-04  Leehod Baruch  <leehod@il.ibm.com>

        * see.c: New file.
        * Makefile.in (OBJS-common): Add see.o.
        (see.o): Add dependencies.
        * common.opt (fsee): New flag for the see optimization was added.
        * opts.c (flag_see): Initialized.
        * passes.c (init_optimization_passes, pass_see): New pass.
        * rtl.h (see_main): Declaration as extern.
        * timevar.def (TV_SEE): New.
        * tree-pass.h (pass_see): Declaration as extern.
        * invoke.texi (-fsee): Document.
        * recog.c (validate_simplify_insn): New function.
        * recog.h (validate_simplify_insn): Declaration as extern.
        * df-problems.c (df_chain_dump): Check for NULL.

2006-05-04  Kenneth Zadeck <zadeck@naturalbridge.com>
            Daniel Berlin  <dberlin@dberlin.org>

        * cfgrtl.c (insert_insn_bb_end_new): New function.
        * basic-block.h (insert_insn_bb_end_new): Declaration as extern.

2006-05-04  Leehod Baruch  <leehod.baruch@weizmann.ac.il>

        * df.h (struct web_entry): Moved from web.c.
        (union_defs): Declaration as extern.
        (unionfind_root): Likewise.
        (unionfind_union): Likewise.
        * web.c (struct web_entry): Moved to df.h.
        (unionfind_root): Remove static declaration.
        (unionfind_union): Likewise.
        (union_defs): Likewise and generalize to use callback function.
        (web_main): Update arguments for union_defs function call.

2006-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26447
        * tree-ssa-pre.c (realify_fake_stores): For necessary loads
        produce SSA_NAME copies before the store stmt to avoid
        breaking exception handling.

2006-05-04  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27388
        * gimplify.c (omp_is_private): If var is shared in some outer context,
        return false instead of true.  Stop searching on parallel context
        boundary.

2006-05-03  Alexandre Oliva  <aoliva@redhat.com>

        PR java/8260
        * coverage.c: Use get_gcov_unsigned_t() instead of
        unsigned_type_node all over.

2006-05-02  Andrew MacLeod  <amacleod@redhat.com>

        PR tree-optimization/27381
        * tree-phinodes.c (remove_phi_arg_num): When moving a phi argument,
        maintain the same immediate_use links.
        * tree-ssa-operands.c (dump_immediate_uses_for): Show iteration marker
        node rather than segfaulting.

2006-05-03  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/27395
        * gimplify.c (gimplify_scan_omp_clauses): Compare OMP_CLAUSE_CODE
        rather than TREE_CODE to OMP_CLAUSE_REDUCTION.  Set also GOVD_SEEN
        bit for OMP_CLAUSE_REDUCTION_PLACEHOLDER.

2006-05-02  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26626
        * tree-ssa-structalias.c (compute_points_to_sets): For now, solve
        always.
        * tree-ssa-operands.c (access_can_touch_variable): Allow
        typecasting through union pointers.

2006-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR c++/26943
        * omp-low.c (maybe_lookup_decl_in_outer_ctx): New function.
        (build_outer_var_ref): Use maybe_lookup_decl_in_outer_ctx
        to find if var will be a global variable even in the nested context.
        (omp_copy_decl): Only check for global variable at the end, it might
        be overridden in outer contexts.
        (scan_sharing_clauses): For global variables don't create a field.
        (lower_rec_input_clauses): Do nothing for global shared variables.
        Emit a barrier at the end of ILIST if there were any decls in both
        firstprivate and lastprivate clauses.
        (lower_send_clauses): Do nothing for global variables except for
        COPYIN.

2006-05-02  Zdenek Dvorak <dvorakz@suse.cz>

        * tree.c (unsigned_type_for, signed_type_for): Make sure a type
        of the correct signedness is returned.

2006-05-02  Jeff Law  <law@redhat.com>

        PR tree-optimization/27364
        * tree-vrp.c (vrp_int_const_binop): Fix detection of overflow from
        multiply expressions.

2006-05-02  Tom Tromey  <tromey@redhat.com>

        * tree-flow-inline.h (op_iter_init_phiuse): Fixed typo.

2006-05-02  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27387
        * arm.c (arm_output_mi_thunk): Use pc-relative addressing when
        -mthumb -fPIC are used.

2006-05-02  Stanislaw Skowronek  <skylark@linux-mips.org>
            Joshua Kinard  <kumba@gentoo.org>

        PR target/25871
        * config/mips/mips.h (TRAMPOLINE_TEMPLATE): Avoid 32-bit moves
        with 64-bit pointers.

2006-05-02  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (add_minipool_forward_ref): Check if insn
        and pool overlap.
        (create_fix_barrier): Check that a suitable barrier location is
        found.
        (arm_reorg): Include ftmp->address in allowable range of addresses.

2006-05-02  David Billinghurst <David.Billinghurst@riotinto.com>

        PR ada/27366
        * ada/env.c (__gnat_clearenv): Use unsetenv() to clear environment
        on Cygwin.

2006-05-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27337
        * gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
        around RESULT_DECL for result passed by reference.
        (gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
        * omp-low.c (use_pointer_for_field): Don't look at
        DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
        (scan_omp_1): Call remap_decl on RESULT_DECLs.
        (lower_rec_input_clauses): Don't allocate VLA memory for the second
        time or var for passing by reference for
        OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
        TREE_ADDRESSABLE variables when passing by reference.

        * omp-low.c (dump_omp_region): Fix output formatting.

        PR middle-end/27328
        * omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
        (expand_omp_parallel): Likewise.
        * tree-cfg.c (move_sese_region_to_fn): Likewise.

        PR middle-end/27325
        * omp-low.c (lower_omp_sections): Call maybe_catch_exception
        on statement list containing also constructors and destructors.
        (lower_omp_single, lower_omp_for, lower_omp_parallel): Likewise.

        PR middle-end/27310
        * except.c (duplicate_eh_regions): Fix clearing of
        cfun->eh->region_array entries.

2006-05-01  DJ Delorie  <dj@redhat.com>

        * configure.ac (gcc_cv_nm): Don't use an in-tree nm if
        build!=host.
        (gcc_cv_objdump): Likewise.
        * configure: Regenerated.

2006-05-01  Kazu Hirata  <kazu@codesourcery.com>

        PR target/27374
        * config/arm/vfp.md (*arm_movdi_vfp): Correct the output
        templates for case 3 and 4.

2006-05-01  DJ Delorie  <dj@redhat.com>

        * vec.c: Include bconfig.h when appropriate.
        * Makefile.in (build/vec.o): Adjust dependencies.
        * mkconfig.sh: Make sure config.h isn't used for build machine
        compiles.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-into-ssa.c (phis_to_rewrite, blocks_with_phis_to_rewrite): New
        variables.
        (mark_phi_for_rewrite): New function.
        (insert_phi_nodes_for, mark_use_interesting): Call
        mark_phi_for_rewrite.
        (rewrite_update_phi_arguments): Traverse only phis in phis_to_rewrite.
        (update_ssa): Initialize and free phis_to_rewrite.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/27291
        * loop-doloop.c (add_test, doloop_modify): Handle the case condition is
        folded to a constant.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27283
        * tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
        not whole # of iteration descriptions.
        (niter_for_exit): Return just # of iterations.  Fail if # of iterations
        uses abnormal ssa name.
        (niter_for_single_dom_exit): Ditto.
        (find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
        return just the number of iterations.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/27144
        * tree-ssa-loop-niter.c (derive_constant_upper_bound): New function.
        (record_estimate): Only record constant upper bound.
        (infer_loop_bounds_from_undefined): Call
        compute_estimated_nb_iterations just once.
        (proved_non_wrapping_p): Renamed to ...
        (n_of_executions_at_most): ... this.  Expect bound to be a constant.
        (convert_step_widening, scev_probably_wraps_p): Call
        n_of_executions_at_most instead of proved_non_wrapping_p.
        (substitute_in_loop_info): Do not replace values in bounds.
        * cfgloop.h (struct nb_iter_bound): Remove "additional" field.  Update
        comments.

2006-05-01  Richard Henderson  <rth@redhat.com>

        PR c/27358
        * c-parser.c (c_parser_skip_to_end_of_block_or_statement): Move after
        c_parser_skip_to_pragma_eol.  Convert to switch statement.  Handle
        CPP_PRAGMA.

2006-05-01  Roger Sayle  <roger@eyesopen.com>

        * c-typeck.c (parser_build_binary_op): Don't call the function
        unsigned_conversion_warning to spot operand/result type overflow.
        (build_binary_op): Instead, call convert_and_check instead of
        convert to report the problem when the operands are promoted.
        * c-common.c (unsigned_conversion_warning): Make static.
        * c-common.h (unsigned_conversion_warning): Delete prototype.

2006-05-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26726
        * tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
        problem ...
        (find_interesting_uses_address): ... we work around here
        by folding INDIRECT_REFs in the substituted base.

2006-05-01  Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c (dump_omp_region): Add newlines.

2006-04-30  Roger Sayle  <roger@eyesopen.com>

        * common.opt (Woverflow): New command line option.
        * c-common.c (constant_expression_warning): Check warn_overflow.
        (overflow_waring): Pass OPT_Woverflow to warning.
        (unsigned_conversion_warning): Likewise.
        (convert_and_check): Likewise.
        * doc/invoke.texi: Document new command line option.

2006-04-30  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_override_options): Enable
        TARGET_NO_FP_IN_TOC for section anchors.
        (optimization_options): Enable section anchors for all
        non-"Objective" languages.

2006-04-28  Eric Christopher  <echristo@apple.com>

        * config/darwin-c.c (darwin_ms_struct): Move this
        (darwin_set_default_type_attributes): and this...
        * config/darwin.c: ... here.
        * config/darwin.h (darwin_ms_struct): Declare.

2006-04-28  Andrew MacLeod  <amacleod@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Fix assert clause.

2006-04-28  Roger Sayle  <roger@eyesopen.com>

        PR c/25309
        * c-typeck.c (struct spelling): Make I an unsigned HOST_WIDE_INT.
        (push_array_bounds): Delete prototype.  Change BOUNDS argument to
        an unsigned HOST_WIDE_INT.
        (print_spelling): Use HOST_WIDE_INT_PRINT_UNSIGNED to output the
        array index.
        (really_start_incremental_init): No need to call convert because
        bitsize_zero_node is already of type bitsizetype.
        (push_init_level): Extract the value of constructor_index as an
        unsigned HOST_WIDE_INT quantity, using tree_low_cst.
        (process_init_element): Likewise.

2006-04-28  Joseph S. Myers  <joseph@codesourcery.com>

        * gcc.c (process_command): Add program name to GCC_EXEC_PREFIX
        value before passing to make_relative_prefix.

2006-04-28  Alan Modra  <amodra@bigpond.net.au>

        PR middle-end/27260
        * builtins.c (expand_builtin_memset): Expand val in original mode.

2006-04-27  Eric Christopher  <echristo@apple.com>

        * target-def.h (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Bracket
        with #ifndef/#endif.
        * config/darwin-c.c (darwin_ms_struct): New.
        (darwin_pragma_ms_struct): Ditto.
        (darwin_set_default_type_attributes): Ditto.
        * config/darwin-protos.h (darwin_pragma_ms_struct): Declare.
        * config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
        Register ms_struct pragma.
        * config/i386/darwin.h (REGISTER_TARGET_PRAGMAS): Declare.
        (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Ditto.
        * config/rs6000/rs6000.c (rs6000_set_default_type_attributes): Call
        darwin_set_default_type_attributes if TARGET_MACHO.

2006-04-27  Andrew MacLeod  <amacleod@redhat.com>

        PR tree-optimization/26854
        * tree-vrp.c (remove_range_assertions): Use new Immuse iterator.
        * doc/tree-ssa.texi: Update immuse iterator documentation.
        * tree-ssa-math-opts.c (execute_cse_reciprocals_1): Use new iterator.
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Use new iterator.
        * tree-flow-inline.h (end_safe_imm_use_traverse, end_safe_imm_use_p,
        first_safe_imm_use, next_safe_imm_use): Remove.
        (end_imm_use_stmt_p): New.  Check for end of immuse stmt traversal.
        (end_imm_use_stmt_traverse): New.  Terminate immuse stmt traversal.
        (move_use_after_head): New.  Helper function to sort immuses in a stmt.
        (link_use_stmts_after): New.  Link all immuses in a stmt consescutively.
        (first_imm_use_stmt): New.  Get first stmt in an immuse list.
        (next_imm_use_stmt): New.  Get next stmt in an immuse list.
        (first_imm_use_on_stmt): New.  Get first immuse on a stmt.
        (end_imm_use_on_stmt_p): New.  Check for end of immuses on a stmt.
        (next_imm_use_on_stmt): New.  Move to next immuse on a stmt.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Use new iterator.
        * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use new iterator.
        (perfect_nestify): Use new iterator.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Use new
        iterator.
        * tree-flow.h (struct immediate_use_iterator_d): Add comments.
        (next_imm_name): New field in struct immediate_use_iterator_d.
        (FOR_EACH_IMM_USE_SAFE, BREAK_FROM_SAFE_IMM_USE): Remove.
        (FOR_EACH_IMM_USE_STMT, BREAK_FROM_IMM_USE_STMT,
        FOR_EACH_IMM_USE_ON_STMT): New immediate use iterator macros.
        * tree-cfg.c (replace_uses_by): Use new iterator.
        * tree-ssa-threadedge.c (lhs_of_dominating_assert): Use new iterator.
        * tree-ssa-operands.c (correct_use_link): Remove.
        (finalize_ssa_use_ops): No longer call correct_use_link.

2006-04-27  Stuart Hastings  <stuart@apple.com>

        * config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New.
        * config/t-darwin (crt3.o): Use it.
        * config/rs6000/rs6000.c (rs6000_initialize_trampoline): Remove
        'pmode', use Pmode instead of SImode for SYMBOL_REF.
        * config/rs6000/rs6000.md (call_indirect_nonlocal_sysv,
        call_nonlocal_sysv, call_value_indirect_nonlocal_sysv,
        call_value_nonlocal_sysv): Suffix with the "P" macro for 32/64
        support.

2006-04-27  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (store_fixed_bit_field): If we're not optimizing for
        size, force the intermediate into a new pseudo rather instead of
        performing both a bitwise AND and a bitwise IOR in memory.

2006-04-27  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/26685
        * params.def (PARAM_MAX_CSE_INSNS): Correct typo that named
        this one "max-flow-memory-locations".

2006-04-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/25148
        * tree-vrp.c (compare_values): Remove code dealing with
        comparisons against type min/max value.  Honour overflow
        and negative constants in code dealing with comparisons
        of plus and minus expressions.
        (value_inside_range): Use fold_binary with LE_EXPR and
        GE_EXPR rather than compare_values.

2006-04-27  Dirk Mueller  <dmueller@suse.de>

        * config/i386/xmmintrin.h (_mm_shuffle_pi16): Declare
        prototype for SSE.

2006-04-26  Kenneth Zadeck <zadeck@naturalbridge.com>

        * basic-block.h (safe_insert_insn_on_edge): Removed.
        * cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Removed.

2006-04-26  David Edelsohn  <edelsohn@gnu.org>
            Paolo Bonzini  <bonzini@gnu.org>

        PR middle-end/27282
        * combine.c (simplify_and_const_int_1): Use gen_int_mode.
        (simplify_and_const_int): Same.

2006-04-26  Aldy Hernandez  <aldyh@redhat.com>

        * tree-ssa-dse.c (dse_optimize_stmt): Remove unused variable USE.

2006-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR c/26171
        * cgraph.c (cgraph_varpool_finalize_decl): Don't call
        cgraph_varpool_assemble_pending_decls if -fopenmp, unless
        cgraph_global_info_ready.

        PR middle-end/26913
        * tree-cfg.c (find_outermost_region_in_block): Handle RESX_EXPR.

        PR c/25996
        * c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for if
        either decl or init is error_mark_node.

        PR middle-end/25989
        * tree-flow.h (struct omp_region): Add sched_kind.
        * omp-low.c (expand_parallel_call): Use region->inner->sched_kind
        instead of extracting omp for data.
        (expand_omp_for): Save extracted sched_kind.

2006-04-25  Roger Sayle  <roger@eyesopen.com>

        * expmed.c (store_bit_field): Also check whether the bitsize is
        valid for the machine's "insv" instruction before moving the
        target into a pseudo for use with the insv.
        * config/i386/predicates.md (const8_operand): New predicate.
        * config/i386/i386.md (extv, extzv, insv): Use the new
        const8_operand predicate where appropriate.

2006-04-25  DJ Delorie  <dj@redhat.com>

        * doc/install.texi (Specific): Clarify that this is not a list of
        supported hosts or targets.

2006-04-25  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/26725
        * cfgrtl.c (rtl_redirect_edge_and_branch_force): Set the source
        block's BB_DIRTY flag.

2006-04-25  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (size_of_locs): Don't fill dw_loc_addr if there
        are no branches.

        * dwarf2asm.c (dw2_asm_output_data): Don't generate RTL just
        to print an integer.

2006-04-25  David Edelsohn  <edelsohn@gnu.org>

        * varasm.c (align_variable): New function.
        (get_block_for_decl): Apply align_variable to DECL before
        calculating section information.
        (assemble_variable): Split out alignment computation.

2006-04-25  Andreas Krebbel  <krebbel1@de.ibm.com>

        * expmed.c (store_bit_field): Handle paradoxical subregs on big endian
        machines.

2006-04-25  Bernd Schmidt  <bernd.schmidt@analog.com>

        * genmodes.c (make_vector_mode): Allow making VECTOR_MODE_INT of a
        MODE_PARTIAL_INT mode.
        * config/bfin/bfin-modes.def: Add V2PDI and V2SI.
        * config/bfin/bfin.c (print_operand): Add macflag and mac/msu modifiers
        for CONST_INTs.
        (hard_regno_mode_ok): V2PDImode is ok for accumulators.
        * config/bfin/bfin.h (CLASS_MAX_NREGS, HARD_REGNO_NREGS): Handle
        V2PDImode.
        * config/bfin/predicates.md (const01_operand, vec_shift_operand):
        New predicates.
        * config/bfin/bfin.md (UNSPEC_MUL_WITH_FLAG, UNSPEC_MAC_WITH_FLAG):
        New constants.
        (MACFLAG_NONE, MACFLAG_T, MACFLAG_FU, MACFLAG_TFU, MACFLAG_IS,
        MACFLAG_IU, MACFLAG_W32, MACFLAG_M, MACFLAG_S2RND, MACFLAG_ISS2,
        MACFLAG_IH): Likewise.
        (movstricthi_1): Renamed from "*movstricthi".
        (load_accumulator, load_accumulator_pair, movsi_insv, insv,
        ssaddsi3, sssubsi3, ssnegsi2, signbitssi2, smaxhi3, sminhi3,
        abshi2, neghi2, ssneghi2, signbitshi2, movhi_low2high,
        movhi_high2high, movhi_low2low, movhi_high2low, movhiv2hi_low,
        movhiv2hi_high, composev2hi, movv2hi_hi, movv2hi_hi_low,
        movv2hi_hi_high, ssaddhi3, sssubhi3, ssaddv2hi3, sssubv2hi3,
        addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3,
        sublohiv2hi3, subhilov2hi3, sssublohiv2hi3, sssubhilov2hi3,
        addlohiv2hi3, addhilov2hi3, ssaddlohiv2hi3, ssaddhilov2hi3,
        mulhisi_ll, mulhisi_lh, mulhisi_hl, mulhisi_hh, ssnegv2hi2,
        ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3, packv2hi,
        flag_mulhi, flag_mulhisi_parts, flag_machi, flag_machi_acconly,
        flag_macinithi, flag_macinit1hi, flag_mulv2hi, flag_mulv2hi_parts,
        flag_macv2hi_parts, flag_macv2hi_parts_acconly,
        flag_macinitv2hi_parts, flag_macinit1v2hi_parts): New patterns.

        * doc/rtl.texi (ss_ashift): Improve wording.

2006-04-24  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (verify_marks_clear): New.
        (prune_unused_types): Call verify_marks_clear initially, not
        prune_unmark_dies.

2006-04-24  Bernd Schmidt  <bernd.schmidt@analog.com>

        * rtl.def (SS_ASHIFT, SS_NEG): New codes.
        * doc/rtl.texi: Document them.
        * simplify-rtx.c (simplify_unary_operation,
        simplify_binary_operation_1): Don't abort when we see them.

2006-04-24  Mark Mitchell  <mark@codesourcery.com>

        Revert:
        2006-04-23  Mark Mitchell  <mark@codesourcery.com>
        * configure.ac: Completely disregard languages that are not
        enabled.
        * configure: Regenerated.

2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27236
        * tree-inline.c (copy_body_r): Make sure to copy
        TREE_THIS_VOLATILE flag.

2006-04-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26869
        * tree-complex.c (update_parameter_components): Don't handle
        unused parameters which have no default def.

2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/27218
        * tree-inline.c (expand_call_inline): Strip useless type
        conversions for the return slot address.

2006-04-24  Richard Guenther  <rguenther@suse.de>

        * cfgloop.h (struct loops): Remove unused field array.  Reorder
        state after num.
        (LOOP_PREFETCH): Remove.

2006-04-24  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22525
        * value-prof.c (tree_mod_pow2): Remove unnecessary temporary
        variable, adjust types of generated expressions.

2006-04-23  H.J. Lu  <hongjiu.lu@intel.com>

        * Makefile.in (c-convert.o): Add dependency on $(TARGET_H)
        (tree-vect-patterns.o): Likewise.
        (jump.o): Likewise.
        (cselib.o): Likewise.
        (loop-doloop.o): Likewise.
        (regclass.o): Likewise.
        (reload1.o): Likewise.
        (explow.o): Replace target.h with $(TARGET_H).
        (ipa-prop.o): Likewise.
        (ipa-cp.o): Likewise.
        (ipa-inline.o): Likewise.
        (reorg.o): Likewise.
        (reg-stack.o): Likewise.

2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-tailcall.c (pass_tail_recursion): Use gate_tail_calls too.

2006-04-23  Mark Mitchell  <mark@codesourcery.com>

        * print-tree.c (print_node): Print DECL_BIT_FIELD_TYPE.

        * configure.ac: Completely disregard languages that are not
        enabled.
        * configure: Regenerated.

        PR c++/26534
        * c-common.h (c_build_bitfield_integer_type): Declare.
        * c-decl.c (c_build_bitfield_integer_type): Move to ...
        * c-common.c (c_build_bitfield_integer_type): ... here.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

        PR target/21283
        * config/fr30/fr30.md (define_split): Avoid calling gen_lowpart on
        a SImode SUBREG of a floating point register after no_new_pseudos.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

        * config/fr30/fr30.md (addsi_small_int): Use REGNO_PTR_FRAME_P to
        identify potentially eliminable registers to additionally catch
        VIRTUAL_INCOMING_ARGS_REGNUM.
        (addsi3): Update the conditions on when to use addsi_small_int.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

        PR target/16641
        * config/fr30/fr30.h (GO_IF_LEGITIMATE_ADDRESS): Check REGNO for
        STACK_POINTER_RTX and FRAME_POINTER_RTX instead of comparing the
        rtx to stack_pointer_rtx or frame_pointer_rtx directly.

2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (range_predecessor): Use operand_equal_p
        as the predicate for equality.
        (range_successor): Likewise.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

        Revert:
        * config/soft-fp/op-common.h: Fix a typo.

2006-04-22  Frank Ch. Eigler  <fche@redhat.com>

        PR libmudflap/26864
        * common.opt (flag_mudflap_threads): Overload flag_mudflap.
        * tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

        * config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
        Fix comment typos.
        * doc/tm.texi: Fix a typo.

2006-04-21  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (struct die_struct): Document that die_sib makes
        a circular linked list.
        (FOR_EACH_CHILD): New.
        (reverse_die_lists): Delete.
        (reverse_all_dies): Delete.
        (add_dwarf_attr): Correct documentation.
        (remove_child_with_prev): New.
        (remove_child_TAG): Update for change to die_struct, use
        remove_child_with_prev.
        (add_child_die): Update for change to die_struct.
        (splice_child_die): Use remove_child_with_prev and add_child_die.
        (print_die): Use FOR_EACH_CHILD.
        (die_checksum): Likewise.
        (assign_symbol_names): Likewise.
        (output_location_lists): Likewise.
        (build_abbrev_table): Likewise.
        (calc_die_sizes): Likewise.
        (mark_dies): Likewise.
        (unmark_dies): Likewise.
        (unmark_all_dies): Likewise.
        (output_die): Likewise.
        (prune_unused_types_mark): Likewise.
        (prune_unused_types_walk): Likewise.
        (same_die_p): Update for change to die_struct.
        (break_out_includes): Likewise.
        (prune_unused_types_prune): Likewise.
        (add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
        (prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
        it's already clear.
        (dwarf2out_finish): Don't call reverse_all_dies.

2006-04-21  Eric Christopher  <echristo@apple.com>

        * df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
        in comments and function names.

2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR c/25875
        * c-typeck.c (digest_init): Robustify.

        * c-typeck.c (pop_init_level): Simplify.

2006-04-21  Steve Ellcey  <sje@cup.hp.com>

        * config/pa/t-pa64: Add dependencies on $(GCC_PASSES).

2006-04-21  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_override_options): Error on iWMMXt and
        hardware floating point.

2006-04-21  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
        NON_FLOAT_REGS.

2006-04-21  Nick Clifton  <nickc@redhat.com>

        * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
        OPT_EXTRA_PARTS.

2006-04-21  Alan Modra  <amodra@bigpond.net.au>

        PR target/27230
        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
        C++ lang type in traceback table for Objective-C++.

        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.

2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (asm_preferred_eh_data_format): Reformat.

2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR mudflap/26789
        * tree-mudflap.c (mudflap_finish_file): Skip function when there
        were errors.  Remove check for erroneous objects.

2006-04-20  Jeff Law  <law@redhat.com>

        PR tree-optimization/26854
        * tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
        checking for zero or one use.
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
        * tree-cfgcleanup.c (merge_phi_nodes): Similarly.
        * tree-ssa-reassoc.c (negate_value): Similarly.
        (reassociate_bb): Similarly.

2006-04-20  Jakub Jelinek  <jakub@redhat.com>

        * c-pretty-print.c (pp_c_direct_abstract_declarator): Print
        TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
        than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).

2006-04-20  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
        fp regs if the last fp arg doesn't fit in regs.

2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/27182
        * config/sh/sh.md (movsicc_true+3): Tweak condition for the case
        that the last insn has the REG_INC note.

2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        PR c/26774
        * stor-layout.c (update_alignment_for_field): Do not align
        ERROR_MARK nodes.
        (place_union_field): Place union field at the start of the union.
        (place_field): Move ERROR_MARK check later, and use the current
        allocation position to maintain monotonicity.

2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>

        * dominance.c: Include timevar.h.
        (calculate_dominance_info): Use TV_DOMINANCE.
        * timevar.def (TV_DOMINANCE): New timevar.
        * Makefile.in (dominance.o): Add TIMEVAR_H dependency.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR rtl-optimization/14261
        * ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
        move would be an INSV insn.
        (noce_process_if_block): Don't optimize if the destination is a
        ZERO_EXTRACT which can't be handled by noce_emit_move_insn.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md: Add comments with the instructions emitted
        by an insn pattern if macros are used.

2006-04-19  Alan Modra  <amodra@bigpond.net.au>

        PR rtl-optimization/26026
        * fold-const.c (fold_binary): Optimize div and mod where the divisor
        is a known power of two shifted left a variable amount.

2006-04-18  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (prune_unused_types_update_strings): Don't add strings
        to hash table twice when the debug_str section has SECTION_MERGE.

2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>

        * config/soft-fp: New directory.  From glibc.
        * config/soft-fp/t-softfp: New.
        * config/soft-fp/README: New.
        * mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
        * Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
        (libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
        (LIBGCC_DEPS): Add $(SFP_MACHINE).
        * config.gcc: Use rs6000/t-fprules-fpbit or
        rs6000/t-fprules-softfp and soft-fp/t-softfp together with
        rs6000/t-fprules.
        * config/rs6000/sfp-machine.h: New.  Based on glibc.
        * config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
        New.
        * config/rs6000/t-fprules: Remove fp-bit rules.
        * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
        * config/rs6000/t-linux64: Likewise.  Remove duplicates from
        LIB2FUNCS_EXTRA.  Remove fp-bit rules.
        (softfp_wrap_start, softfp_wrap_end): New.

2006-04-18  DJ Delorie  <dj@redhat.com>

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

2006-04-18  Devang Patel  <dpatel@apple.com>

        * doc/invoke.texi (-Wuninitialized): Clarify -O connection.

2006-04-18  Nick Clifton  <nickc@redhat.com>

        * config/sh/t-symbian: Add rule to build sh-c.o
        * config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
        of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
        (sh_symbian_encode_section_info): Likewise.

2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>

        * builtins.c (expand_builtin_strcmp): Cover label definition of
        do_libcall with HAVE_cmpstrnsi.

2006-04-18  Kazu Hirata  <kazu@codesourcery.com>

        * function.c (temp_slots_at_level, max_slot_level): Use VEC
        instead of VARRAY.
        * function.h (temp_slot_p): New.
        (function): Change the type of x_used_temp_slots to
        VEC(temp_slot_p,gc) *.

2006-04-18  Nick Clifton  <nickc@redhat.com>

        * config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
        flag_strength_reduce.

        * doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR target/27117

        Partial revert of revision 112637
        2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
                    Dale Johannesen  <dalej@apple.com>

        PR target/19653
        * regclass.c (struct reg_pref): Update documentation.
        (regclass): Set prefclass to NO_REGS if memory is the best option.
        (record_reg_classes): Cope with a prefclass set to NO_REGS.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/26821
        * tree-ssa-math-opts.c (get_constant_one): New.
        (insert_reciprocals): Use it.

2006-04-17  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (free_AT): Delete.
        (remove_AT): Update string ref counts.
        (remove_child_TAG): Don't call free_die.
        (free_die): Delete.
        (break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
        or DW_TAG_GNU_EINCL.
        (prune_unused_types_walk_attribs): Reset string refcounts.
        (prune_unused_types_update_strings): New.
        (prune_unused_types_prune): Don't make unnecessary stores.  Don't
        call free_die.  Do call prune_unused_types_update_strings.
        (prune_unused_types): Empty debug_str_hash.

2006-04-17  Roger Sayle  <roger@eyesopen.com>

        * expr.c (expand_assignment): Optimize away no-op moves where the
        source and destination are equal and have no side-effects.

2006-04-17  Richard Guenther  <rguenther@suse.de>

        PR target/26826
        * reload.c (push_reload): Guard calls to get_secondary_mem
        for memory subregs.

2006-04-16  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (reg_base_value, old_reg_base_value): Change the
        type to VEC(rtx,gc) *.
        (REG_BASE_VALUE, find_base_value, record_set,
        init_alias_analysis): Use VEC instead of VARRAY.

        * alias.c (alias_sets): Change the type to
        VEC(alias_set_entry,gc) *.
        (get_alias_set_entry, new_alias_set, record_alias_subset): Use
        VEC instead of VARRAY.
        (last_alias_set): Remove.

        * cgraph.h (cgraph_edge_p): New.
        Update the prototype of cgraph_function_versioning.
        * cgraphunit.c (cgraph_copy_node_for_versioning,
        cgraph_function_versioning): Use VEC instead of VARRAY.
        * ipa-cp.c (ipcp_insert_stage): Likewise.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

        PR target/26961
        * fold-const.c (fold_ternary): When converting "A ? B : C" into either
        "A op B" or "A op C", we may need to convert A to the type of B and C.

2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>

        * target.h (struct gcc_target): Add mode_rep_extended.
        * rtlanal.c (num_sign_bit_copies_in_rep): New global.
        (init_num_sign_bit_copies_in_rep): Initialize it using
        mode_rep_extended.
        (truncate_to_mode): Use it.
        (init_rtlanal): Call init_num_sign_bit_copies_in_rep.
        * targhooks.h (default_mode_rep_extended): Declare it.
        * targhooks.c (default_mode_rep_extended): Define it.
        * target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
        default_mode_rep_extended.
        (TARGET_INITIALIZER): Include it.
        * doc/tm.texi (Misc): Document it.
        * config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
        (mips_truncated_to_mode): New function.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/25474
        * expr.c (compress_float_constant): Copy the narrow constant into
        a new pseudo before extending it to its final width.

2006-04-16  Roger Sayle  <roger@eyesopen.com>
            Andrew Pinski  <pinskia@gcc.gnu.org>
            Dale Johannesen  <dalej@apple.com>

        PR target/24076
        * config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
        special case code to implement V8HImode and V16QImode with SSE2.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_va_start): Ensure all integer constant
        trees are constructed with a suitable tree type.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

        * tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
        (integer_onep): Likewise.
        (integer_all_onesp): Likewise.
        (integer_pow2p): Likewise.
        (integer_nonzerop): Likewise.
        (real_zerop): Likewise.
        (real_onep): Likewise.
        (real_twop): Likewise.
        (real_minus_onep): Likewise.
        (int_size_in_bytes): Likewise.
        (host_integerp): Likewise.

2006-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
        jump.c, mips-tfile.c, omp-low.c, sched-int.h,
        tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.

        * tree-ssa-structalias.h (alias_info): Remove num_references.

2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (output_bb patterns): Shorten long branch alternatives by 4.
        (output_bvb patterns): Likewise.
        * pa.c (output_bb): Use 'bb' insn for long branch case.
        (output_bvb): Likewise use '{bvb|bb}' for long branch case.
        (output_dbra): Use '{comb|cmpb}' for long branch case for alternative
        1.  Correct length operand for alternatives 1 and 2.
        (output_movb): Use '{comb|cmpb}' for long branch case for alternatives
        1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.

2006-04-14  Roger Sayle  <roger@eyesopen.com>

        * tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
        is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
        were accidentally reverted by r112959.

2006-04-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26823
        * except.h (eh_region_outermost): New prototype.
        * except.c (eh_region_outermost): New function.
        * tree-cfg.c (find_outermost_region_in_block): Use it.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

        * local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
        of VARRAY.
        * reload1.c (reg_equiv_memory_loc_varray): Rename to
        reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
        (init_reload, reload): Use VEC instead of VARRAY.
        * reload.h: Update the prototype for
        reg_equiv_memory_loc_varray.

2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
            Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (emit_and_preserve): Allocate space for the
        register save area.

2005-04-13  Uros Bizjak  <uros@kss-loka.si>

        PR middle-end/27134
        * builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
        to expand fallback builtin function call.

2006-04-14  Alan Modra  <amodra@bigpond.net.au>

        PR middle-end/27095
        * builtins.c: (expand_builtin_memset): Stabilize args before expansion
        and emit libcall here in case the builtin fails.
        (expand_builtin_strcmp): Always emit the libcall here on failure.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
        * flow.c (reg_n_info): Change the type to
        VEC(reg_info_p,heap) *.
        * regclass.c (allocate_reg_info, free_reg_info): Use VEC
        instead of VARRAY.
        * regs.h (reg_info_p): New.
        (REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
        REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
        REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
        instead of VARRAY.

2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>

        * params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
        defaulting to 100.
        * params.h (MAX_SCHED_READY_INSNS): New macro.
        * haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
        past MAX_SCHED_READY_INSNS during the first scheduling pass.
        (schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
        the ready list for 1 cycle during the first scheduling pass.
        * doc/invoke.texi (--param): New parameter max-sched-ready-insns.

2006-04-13  Richard Henderson  <rth@redhat.com>

        PR libgomp/26651
        * gimple-low.c (lower_omp_directive): Remove dead code.
        (lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
        * gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
        * omp-low.c (struct omp_region): Move to tree-flow.h.
        (root_omp_region): Export.
        (omp_regions, lookup_omp_region): Remove.
        (determine_parallel_type): Update for struct omp_region changes.
        (dump_omp_region): Dump regions with block numbers.
        (new_omp_region): Take type and block instead of stmt; malloc
        instead of ggc.
        (free_omp_region_1, free_omp_regions): New.
        (expand_parallel_call): Take entry_stmt as argument; update for
        changes to omp_region.
        (remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
        (remove_exit_barriers): New.
        (expand_omp_parallel): Update for struct omp_region changes.
        (expand_omp_synch): Likewise.
        (expand_omp): Likewise.
        (expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
        (expand_omp_for_static_chunk): Likewise.
        (expand_omp_for): Likewise.
        (expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
        (expand_omp_sections): Similarly, with GOMP_sections_end.
        (expand_omp_single): New.
        (build_omp_regions_1): Update for OMP_CONTINUE.
        (execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
        (lower_omp_sections): Expand with OMP_CONTINUE, do not collect
        OMP_SECTIONS_SECTIONS.
        (lower_omp_single_simple): Don't emit barrier here.
        (lower_omp_single_copy): Likewise.
        (lower_omp_single): Fix bindings, and lower to straightline now.
        (lower_omp_master, lower_omp_ordered): Likewise.
        (lower_omp_critical): Likewise.
        (lower_omp_for): Likewise.  Emit OMP_CONTINUE.
        * tree-cfg.c (make_edges): Collect an omp_region tree, use it for
        omp edges, free it afterward.
        (make_omp_sections_edges): Remove.
        (is_ctrl_altering_stmt): Don't bother checking flag_openmp.
        (move_stmt_r): Handle OMP_CONTINUE.
        * tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
        statement pointers to basic blocks.  Add type member.
        (root_omp_region, new_omp_region, free_omp_regions): Declare.
        * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
        * tree-inline.c (estimate_num_insns_1): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-ssa-operands.c (get_expr_operands): Likewise.
        * tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
        (OMP_RETURN): Rename from OMP_RETURN_EXPR.
        (OMP_CONTINUE): New.
        * tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
        (OMP_SECTIONS_SECTIONS): Remove.
        (OMP_SECTION_LAST): New.
        (OMP_RETURN_NOWAIT): New.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (native_encode_vector, native_interpret_real):
        Correct obvious mistakes in the previous check-in.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (native_encode_expr): New function to encode
        the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
        or VECTOR_CST into a specified buffer.
        (native_encode_int): New function.
        (native_encode_real): New function.
        (native_encode_complex): New function.
        (native_encode_vector): New function.
        (native_interpret_expr): Inverse of native_encode_expr to convert
        a target representation into an INTEGER_CST, REAL_CST etc...
        (native_interpret_int): New function.
        (native_interpret_real): New function.
        (native_interpret_complex): New function.
        (native_interpret_vector): New function.
        (fold_view_convert_expr): New function to constant fold/evaluate
        a VIEW_CONVERT_EXPR of a suitable constant expression.
        (fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
        Change call of build1 to fold_build1 when constructing a
        VIEW_CONVERT_EXPR.

2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
            Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/27006
        * config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
        to be even.

2006-04-13  Alan Modra  <amodra@bigpond.net.au>

        PR target/26459
        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
        optimize to lo_sum for DFmode if !TARGET_FPRS.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-alias.c (set_initial_properties, init_alias_info,
        delete_alias_info, compute_flow_sensitive_aliasing,
        group_aliases): Use VEC instead of VARRAY.
        * tree-ssa-structalias.c (update_alias_info): Likewise.
        * tree-ssa-structalias.h (alias_info): Change the type of
        processed_ptrs to VEC(tree,heap) *.

2006-04-12  J"orn Rennecke <joern.rennecke@st.com>

        PR target/27060
        * config/sh/lib1funcs.h: New file, broken out of:
        * config/sh/lib1funcs.asm.
        * config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
        New macros.
        * config/sh/lib1funcs.asm (udivsi3_i4): Use them.
        * config/sh/lib1funcs-Os-4-200.asm: New file.
        * config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
        * config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
        (EXTRA_MULTILIB_PARTS): Include it.
        ($(T)sdivsi3_i4i-Os-4-200.o): New rule.
        ($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
        * config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
        * config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
        TARGET_SH2.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
        * tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
        tpa_compact, root_var_init, type_var_init): Use VEC instead of
        VARRAY.
        * tree-ssa-live.h: Include vecprim.h.
        (tree_partition_associator_d): Change the type of
        first_partition to VEC(int,heap) *.
        (tpa_first_partition): Use VEC instead of VARRAY.

        * Makefile.in (GTFILES): Move functions.h after tree.h.
        * function.c (reset_block_changes, record_block_change,
        check_block_change, free_block_changes): Use VEC instead of
        VARRAY.
        * function.h (function): Change the type of
        ib_boundaries_block to VEC(tree,gc) *.
        * tree-inline.c (copy_cfg_body): Initialize
        ib_boundaries_block to NULL instead of (varray_type) 0.

2006-04-12  Roger Sayle  <roger@eyesopen.com>

        * expr.c (emit_group_store): Correct operand order in call to
        subreg_lowpart_offset.  Always create paradoxical SUBREGs with
        a SUBREG_BYTE of zero.

2006-04-12  Richard Guenther  <rguenther@suse.de>

        * profile.c (compute_branch_probabilities): Remove code
        encapsulated in !ir_type (), which are remanents of the
        removed RTL profiling code.
        * rtl-profile.c: Remove.

2006-04-12  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
        magic NULL_RTX comment.
        (function_arg): Store entire fp arg to mem if any part should go
        on stack.
        (rs6000_arg_partial_bytes): Adjust for above change.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

        * dwarf2out.c (output_call_frame_info): Create debug_frame_section
        if it hasn't been initialized by dwarf2out_init.

2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>

        * pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
        symbolic constants in branch patterns.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

        * caller-save.c: #include "addresses.h" after #include "tm_p.h".

2006-04-11  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/27073
        * gcse.c (try_replace_reg): Revert last change.  Continue to search
        for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
        on the former.

2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
        aggregate types other than record and union types.
        (function_arg): Likewise.
        (function_arg_pass_by_reference): In 64-bit mode, return 0 for
        small arrays.
        (function_value): In 64-bit mode, return objects that require it
        in FP registers.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

        * dwarf2out.c (premark_used_types): Remove problematic prototype.

2006-04-11  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.

2006-04-03  Jeff Law  <law@redhat.com>

        PR/27087
        * tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
        alias information too.

2006-04-10  Mike Frysinger  <vapier@gentoo.org>

        * Makefile.in (gcc-cross): Add $(exeext) to target name.

2006-04-10  Aldy Hernandez  <aldyh@redhat.com>

        PR/21391
        * dwarf2out.c (struct die_struct): Add die_perennial_p field.
        (premark_used_types_helper): New.
        (premark_used_types): New.
        (gen_subprogram_die): Call premark_used_types.
        (prune_unused_types_walk): Do not prune perennial dies.
        * function.c (used_types_insert): New.
        * function.h (struct function): Add used_types_hash field.
        (used_types_insert): Add prototype.
        * Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
        * c-parser.c (c_parser_cast_expression): Save casted types in used
        types hash table.

2006-04-11  Mark Mitchell  <mark@codesourcery.com>

        PR target/26459
        * config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
        rs6000_explicit_options.float_gprs.

2006-04-10  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
        from ix86_expand_vector_init_low_nonzero.  Take an additional
        one_var argument indicating which element is non-zero.  Support
        one_var != 0 for V4SFmode and V4SImode by permuting the result.
        (ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
        with one_var instead of ix86_expand_vector_init_low_nonzero.

2006-04-10  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
        tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
        global.o, cfglayout.o, lambda-code.o, reg-stack.o,
        build/genextract.o): Depend on vecprim.h.
        * cfglayout.c, df-problems.c, function.c, genextract.c,
        global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
        tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
        vecprim.h.
        * vecprim.h: New.

2006-04-10  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
        Declare VECs of this type.
        (struct die_struct): Make field die_attr a VEC of dw_attr_struct.
        (remove_children): Delete.
        (add_dwarf_attr): Use VEC routines.
        (add_AT_flag): Update for changes to add_dwarf_attr.
        (add_AT_int): Likewise.
        (add_AT_unsigned): Likewise.
        (add_AT_long_long): Likewise.
        (add_AT_vec): Likewise.
        (add_AT_string): Likewise.
        (add_AT_die_ref): Likewise.
        (add_AT_fde_ref): Likewise.
        (add_AT_loc): Likewise.
        (add_AT_loc_list): Likewise.
        (add_AT_addr): Likewise.
        (add_AT_lbl_id): Likewise.
        (add_AT_lineptr): Likewise.
        (add_AT_macptr): Likewise.
        (add_AT_offset): Likewise.
        (add_AT_range_list): Likewise.
        (get_AT): Use VEC_iterate.
        (remove_AT): Use VEC_ordered_remove.
        (free_die): Fold remove_children into here; have it use VEC_iterate.
        (print_die): Use VEC_iterate on attrs.
        (reverse_die_lists): Don't reverse attr lists.
        (die_checksum): Use VEC_iterate on attrs.
        (same_die_p): Likewise.
        (output_location_lists): Likewise.
        (build_abbrev_table): Likewise.
        (size_of_die): Likewise.
        (unmark_all_dies): Likewise.
        (output_abbrev_section): Likewise.
        (output_die): Likewise.
        (prune_unused_types_walk_attribs): Likewise.

2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * doc/install.texi (*-*-solaris2*): Point to the configure page.

2006-04-10  Jakub Jelinek  <jakub@redhat.com>

        PR debug/27057
        * dwarf2out.c (is_symbol_die): Return true also for namespaces.

2006-04-09  Roger Sayle  <roger@eyesopen.com>

        * expr.c (store_constructor): Don't bother clearing target if
        we're about to assign a vector to it using vec_init_optab.

2006-04-10 Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c (lhs_may_store_to): New function.
        (recalculate_used_alone): Handle LHS of calls.

2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/27034
        PR target/26508
        * config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
        * pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
        (LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
        (PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
        (PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
        (PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
        section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
        stubs.  Add ".align 8" directives before all ".dword" directives.
        (GTHREAD_USE_WEAK): Revise comment.
        (TARGET_ATTRIBUTE_WEAK): Define.
        * pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
        dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
        * stublib.c: New file.

        PR target/26743
        PR target/11254
        PR target/10274
        * pa.md (cbranch patterns): Revise arguments used in calls to
        output_cbranch, output_bb and output_bvd.  Add long branch length
        attributes.
        (fbranch patterns): Handle long branches.
        (jump): Revise length check.  Revise arguments for output_lbranch call.
        Add long branch length attributes.
        (decrement_and_branch_until_zero): Add long branch length attributes.
        (output_movb, output_parallel_addb and output_parallel_movb patterns):
        Likewise.  Revise arguments for output_parallel_addb and
        output_parallel_movb calls.
        * pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
        output_parallel_movb and output_parallel_addb): Update prototypes.
        * pa.c (output_cbranch): Revise arguments.  Correct handling of
        nullification in long branches.
        (output_lbranch): Add new argument to control extraction of delay
        instruction.
        (output_bb): Handle long branches.
        (output_bvb, output_dbra, output_movb, output_parallel_movb,
        output_parallel_addb): Likewise.

2006-04-09  Richard Sandiford  <richard@codesourcery.com>

        PR rtl-optimization/27073
        * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
        not REG_EQUIVs.

2006-04-08  Daniel Berlin  <dberlin@dberlin.org>

        * tree.h (tree_memory_tag): Add old_used_alone.
        (SMT_OLD_USED_ALONE): New macro.
        * tree-ssa-alias.c (recalculate_used_alone): Stop
        marking things for renaming unnecessarily.

2006-04-08  Kazu Hirata  <kazu@codesourcery.com>

        * builtins.c, config/arm/arm.c, config/i386/cygwin.h,
        config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
        config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
        haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
        sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
        tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
        tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
        spelling convensions.
        * config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
        doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
        typos.  Follow spelling conventions.

2006-04-07  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_function_arg): Structures are always
        passed on the stack.
        (m32c_init_cumulative_args): When a function returns a structure,
        always pass the pointer to that return area on the stack.
        (m32c_function_arg_advance): Don't increment the parameter number
        if we're processing the returned structure pointer.
        (pushm_info): Reverse order of registers.

2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
        assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
        number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
        estimate_numbers_of_iterations_loop): Use build_int_cst instead of
        build_int_cst_type.
        * tree-chrec.c (chrec_fold_multiply_poly_poly,
        chrec_fold_multiply): Same.
        * tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
        force_expr_to_var_cost): Same.
        * tree-mudflap.c (mf_xform_derefs_1): Same.
        * tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.

2006-04-07  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
        treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
        insn.

2006-04-07  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_early_inlining): Collect garbage.

2006-04-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26135
        * tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
        loads for store copy-prop.
        (copy_prop_visit_stmt): Likewise.

2006-04-05  Robert Millan  <robertmh@gnu.org>

        * config/i386/linux.h: Add a comment to mark macros that are
        being overriden in config/k*bsd-gnu.h.
        * config/kfreebsd-gnu.h: Redefine GLIBC_DYNAMIC_LINKER instead of
        DYNAMIC_LINKER.
        * config/knetbsd-gnu.h: Ditto.

2006-04-06  Jan Hubicka  <jh@suse.cz>

        PR profile/20815
        PR profile/26399
        * coverage.c (coverage_checksum_string): Reorganize loop to not read
        after buffer.

2006-04-06  Mike Stump  <mrs@apple.com>

        * builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
        for HAVE_nonlocal_goto to be consistent.
        (expand_builtin_nonlocal_goto): Likewise.
        (expand_builtin_strcmp): Use #ifdef instead of #if
        for HAVE_cmpstrnsi to be consistent.

2006-04-05  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
        vs m32c.

2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
        got-relative addressing for anything but SImode.

        * config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
        even if the calling function doesn't modify them.

2006-04-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26919
        * ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
        to cgraph_estimate_size_after_inlining.

2006-04-05  Alan Modra  <amodra@bigpond.net.au>

        * reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.

2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>

        PR tree-optimization/26996
        * tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
        VECTOR_TYPE variables.

2006-04-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26763
        * fold-const.c (fold_comparison): Move folding of
        PTR + CST CMP PTR + CST ...
        (fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.

2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Prerequisites): Refine some wording on
        bootstrapping and ksh.
        Move the version numbers of DejaGnu here from the testing section
        and fix casing of names.
        Fix markup and clarify wording for autogen requirements.
        Refer to GCJ instead of just java.
        Refer to SVN instead of CVS.
        Describe diffutils as useful instead of necessary.
        (Downloading the source): Refer to SVN instead of CVS.
        Adjust a link to our web site accordingly.
        (Configuration): Fix casing of Bison.
        (Building): Refer to SVN instead of CVS.
        Fix a sentence on the use of Bison and remove duplicate (and
        incorrect) version number of Bison requirement.
        Remove one redundant list of packages needed for building.
        (Specific): Avoid reference to CVS.

2006-04-04  Eric Christopher  <echristo@apple.com>

        * config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
        (TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
        (rs6000_handle_struct_attribute): New.
        (rs6000_ms_bitfield_layout_p): Ditto.

2006-04-04  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
        NULL for dso parameter to atexit_common.

2006-04-04  Eric Christopher  <echristo@apple.com>

        * config/i386/i386.c (machopic_output_stub): Output \t
        between instructions and operands.

2006-04-04  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (num_insns_constant_wide): Change
        satisfies_constraint_[IL] to explicit tests on value.

2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
        set_nb_iterations_in_loop): Use build_int_cst instead of
        build_int_cst_type.
        * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
        build_int_cst instead of convert.

2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
        new value 2 for incoming.
        * function.c (expand_function_start): Call struct_value_rtx
        with incoming as 2.
        * config/sparc/sparc.md: Comment updated_return.
        * config/sparc/sparc.opt: Add -mstd-struct-return option.
        * config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
        struct return if sparc_std_struct_return and incoming is 2.
        (print_operand): Do not adjust return if
        sparc_std_struct_return.

2006-04-04  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_sprintf): Use fold_convert instead of
        convert in the middle-end.
        * expr.c (store_expr, store_constructor, get_inner_reference,
        expand_expr_real_1, string_constant, try_casesi, try_tablejump):
        Likewise.
        * tree.c (build_range_type): Likewise.

2006-04-04  Tom Tromey  <tromey@redhat.com>

        * doc/install.texi (Prerequisites): Mention jar.

2006-04-04  Daniel Berlin  <dberlin@dberlin.org>

        * doc/tree-ssa.texi (Preserving the virtual ssa form): New
        subsection.

2006-04-04  Matthias Klose  <doko@debian.org>

        * Makefile.in (unprotoize.o): Same dependencies as for protoize.o.
        * Makefile.in (s-macro_list): Conform to POSIX rules in single quoted
        strings.

2006-04-03  Geoffrey Keating  <geoffk@apple.com>

        * doc/extend.texi (Function Attributes): Rewrite visibility
        attribute documentation.
        * doc/invoke.texi (C++ Dialect Options): Rewrite
        -fvisibility-inlines-hidden documentation to describe something
        entirely different, although in practise compatible.
        (Code Gen Options): Warn about system headers in -fvisibility=
        documentation.

        * doc/extend.texi (Other Builtins): Document that
        __builtin_nan is a compile-time constant only when its argument
        is valid.

2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
        trying to remove TRUNCATE check if all bits outside the new mode
        are identical to the sign bit.

2006-04-03  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
        and operand scanning in some common cases.

2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
            Dale Johannesen  <dalej@apple.com>

        PR target/19653
        * regclass.c (struct reg_pref): Update documentation.
        (regclass): Set prefclass to NO_REGS if memory is the best option.
        (record_reg_classes): Cope with a prefclass set to NO_REGS.
        * reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
        into account.  For non-registers, equate an empty preferred
        reload class to a `!' in the constraint; move the if clause to
        do so after those that reject the insn.
        (push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
        return NO_REGS.
        (find_dummy_reload): Likewise.
        * doc/tm.texi (Register Classes): Document what it means
        if PREFERRED_*_RELOAD_CLASS return NO_REGS.
        * config/i386/i386.c (ix86_preferred_reload_class): Force
        using SSE registers (and return NO_REGS for floating-point
        constants) if math is done with SSE.
        (ix86_preferred_output_reload_class): New.
        * config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
        * config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
        * config/i386/i386.md: Remove # register preferences.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        PR bootstrap/26992
        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
        chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
        the type of nb_iter.
        (instantiate_parameters_1): Convert the operands before calling
        chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
        * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (dummy_object): Use build_int_cst instead of convert.
        * tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
        instead of convert.
        * dojump.c (do_jump): Likewise.
        * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
        * gimplify.c (gimple_boolify, gimplify_init_constructor,
        gimplify_boolean_expr): Likewise.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
        * varasm.c (array_size_for_constructor): Likewise.
        * tree-object-size.c (compute_object_offset): Likewise.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26977
        * expr.c (emit_group_store): Check whether simplify_gen_subreg returns
        NULL_RTX, indicating it couldn't create a valid paradoxical subreg.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        PR tree-optimization/26939
        * tree-chrec.c (chrec_merge): Use eq_evolutions_p.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
        at_stmt.  Convert the type of operands before calling
        build_polynomial_chrec.
        (add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
        add_to_evolution_1.
        (follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
        (instantiate_parameters_1): Convert the type of operands before calling
        build_polynomial_chrec.
        * tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
        chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
        reset_evolution_in_loop): Insert asserts to check the types of the
        operands.
        (chrec_type): Moved...
        (eq_evolutions_p): Use operand_equal_p.
        * tree-chrec.h (build_polynomial_chrec): Insert an assert to check
        the types of the operands.
        (chrec_type): ...here.
        * tree-data-ref.c (create_data_ref): Convert the operands before
        calling chrec_replace_initial_condition.
        (same_access_functions, analyze_subscript_affine_affine,
        analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
        (compute_subscript_distance, analyze_ziv_subscript,
        analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
        analyze_miv_subscript): Convert the operands before calling
        chrec_fold_minus or chrec_fold_plus.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-data-ref.c (compute_all_dependences): Use a pointer to
        the dependence_relations vector.
        (compute_data_dependences_for_loop): Adjust call to
        compute_all_dependences.

2006-04-01  Roger Sayle  <roger@eyesopen.com>
            Richard Henderson  <rth@redhat.com>

        * gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
        gimple_boolify on the condition before calling gimplify_expr.

2006-03-31  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
        to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
        the frame size.  Update to use the new macros.
        * config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
        * config/xtensa/ieee754-df.S: Likewise.

2006-03-31  Richard Henderson  <rth@redhat.com>

        * tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
        (make_edges): ... here.  Control fallthru creation with a local
        variable.  Do not play with fake edges.
        (make_omp_sections_edges): Don't set EDGE_ABNORMAL.
        (make_goto_expr_edges): Don't play with fake edges.  Make for_call
        a boolean.

2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>

        * dwarf2.h (DW64_CIE_ID): Define.
        * dwarf2out.c (DWARF_CIE_ID): Define.
        (output_call_frame_info): Output 0xffffffff before standard 8-byte
        length header.  Use DWARF_CIE_ID.
        (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
        dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.

2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux-atomic.asm: New file.
        * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.

2006-03-31  DJ Delorie  <dj@redhat.com>

        * config/m32c/cond.md: Set condition flags properly throughout.
        * config/m32c/minmax.md: Likewise.
        * config/m32c/prologue.md: Likewise.
        * config/m32c/bitops.md: Likewise.
        * config/m32c/muldiv.md: Likewise.
        * config/m32c/mov.md: Likewise.
        * config/m32c/addsub.md: Likewise.
        * config/m32c/m32c.md: Likewise.
        * config/m32c/jump.md: Likewise.
        * config/m32c/shift.md: Likewise.

        * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
        conditionally output the pattern for this.
        * config/m32c/m32c.c (flags_needed_for_conditional): New.
        (m32c_compare_redundant): New.
        (m32c_output_compare): New.
        * config/m32c/m32c-protos.h (m32c_output_compare): New.

        * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
        dest, not src.  Allow other 4-byte modes.

2006-03-30  Denis Chertykov  <denisc@overta.ru>

        * doc/md.texi: Refer to avr/constraints.md instead of
        avr/avr.h.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

        * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
        signed vs. unsigned comparison failures on some hosts.

2006-03-31  Alan Modra  <amodra@bigpond.net.au>

        PR target/26459
        * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
        change to FLOAT_REGS.

        * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
        (rs6000_override_options): Use it.
        (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
        only for -mabi=spe/no-spe and -mabi=altivec.

2006-03-30  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
        !Zdynamiclib.

2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Rename docdir to gcc_docdir.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

        PR target/17959
        * expr.c (emit_group_store): Optimize group stores into a pseudo
        register by using a paradoxical subreg to initialize the destination
        if the first or last member of the group specifies a "low part".

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR target/26734
        * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
        * target.h (struct gcc_target.speculate_insn): Change type of the
        second parameter to 'int'.
        * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
        the second operand of the DEPS_LIST.
        (copy_DEPS_LIST_list): Update reference to the second operand of the
        DEPS_LIST.
        * rtl.h (alloc_DEPS_LIST): Update signature.
        * sched-int.h (ds_t): Change typedef to 'int'.
        (DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (try_ready): Change condition to restore
        non-speculative pattern of the instruction.
        (process_insn_depend_be_in_spec): Code to keep probability of the
        speculative dependence non-decreasing.

2006-03-30  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
        (single_move_for_movmem): ... this. Also change all uses.
        (bfin_expand_strmov): Renamed to...
        (bfin_expand_movmem): ... this. Also change all uses.
        * config/bfin/bfin.md (movstrsi): Renamed to...
        (movstrsi): ...this.

2006-03-30  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/26830

        * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
        (copy_prop_visit_stmt): Remove write-only variable ann.
        (init_copy_prop): Check variable loop depth here.  Do not simulate
        memory-tag and virtual operand PHIs except for store copy prop.

2006-03-30  Richard Guenther  <rguenther@suse.de>

        * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
        variants with double arguments.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

        * genpreds.c (write_tm_constrs_h): Delete variable p.
        * genconditions.c (write_header): Add tm-constrs.h to included
        headers.
        * genpeep.c (main): Add toplev.h to included headers.
        * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
        (build/genpeep.o): Add toplev.h dependency.
        * config/rs6000/constraints.md: Add "W" constraint.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

        * stor-layout.c (mode_for_size_tree): Remove restiction on type
        sizes by correctly testing whether the size fits a host integer.
        (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
        to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
        SImode range for the default sizetype and bitsizetype.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

        * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
        and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
        quickly if the argument is already of the correct type.
        Call fold_build1 instead of build1.  Tidy up blank lines.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

        * genemit.c (main): Add tm-constrs.h to included headers.
        * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
        * genpeep.c (main): Add tm-constrs.h to included headers.
        * genpreds.c (write_satisfies_constraint_fns): Rename to ...
        (write_tm_constrs_h): this and write complete file.
        (write_tm_preds_h): Do not emit satisfies_constraint fns.
        (write_insn_preds_c): Add tm-constrs.h to included headers.
        (gen_constrs): New variable.
        (parse_option): Parse "-c".
        (main): Invoke write_tm_constrs_h.
        * genrecog.c (write_header): Add tm-constrs.h to included headers.
        * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
        (object_out_file): Add tm-constrs.h dependency.
        (insn-emit.o): Same.
        (insn-output.o): Same.
        (insn-peep.o): Same.
        (insn-preds.o): Same.
        (insn-recog.o): Same.
        (tm-constsr.h): New target.
        (s-constrs-h): New target.

        * config/rs6000/constraints.md: New file.
        * config/rs6000/rs6000.c: Include tm-constrs.h.
        (num_insn_constant_wide): Convert to satisfies_constraint.
        (rs6000_rtx_costs): Convert to satisfies_constraint.
        * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.
        (EXTRA_MEMORY_CONSTRAINT): Delete.
        (EXTRA_ADDRESS_CONSTRAINT): Delete.
        * config/rs6000/predicates.md: Convert to satisfies_constraint.
        * config/rs6000/rs6000.md: Include constraints.md.  Convert to
        satisfies_constraint.

        * config/i386/i386.c: Include tm-constrs.h.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
        * tree-data-ref.c (find_data_references_in_loop,
        compute_data_dependences_for_loop): Use pointers to VEC.
        (analyze_all_data_dependences): Adjust calls.
        * tree-data-ref.h (find_data_references_in_loop,
        compute_data_dependences_for_loop): Adjust declarations.
        * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
        compute_data_dependences_for_loop.

2006-03-29  Paul Brook  <paul@codesourcery.com>

        * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
        (movdf_vfp): Ditto.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

        PR tree-optimization/26859
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
        division by zero.
        (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
        for the step after fold_convert.

2006-03-29  Paul Brook  <paul@codesourcery.com>

        * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
        (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.

2006-03-29  Paul Brook  <paul@codesourcery.com>

        PR middle-end/23623
        * targhooks.c (default_narrow_bitfield): New fuction.
        * targhooks.h (default_narrow_bitfield): add prototype.
        * target.h (gcc_target): Add narrow_volatile_bitfield.
        * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
        * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
        * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
        * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.

2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
        tmake_file.
        * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
        (NR_C_MODES): Add TDmode, DDmode and SDmode.
        (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
        (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
        (s390_function_arg_float): Allow SDmode and DDmode values to be
        passed in floating point registers.
        (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
        check with SCALAR_FLOAT_MODE_P.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/25985
        * tree-ssa-loop-niter.c (number_of_iterations_le,
        number_of_iterations_ne): Make comments more precise.
        (number_of_iterations_cond): Add only_exit argument.  Use the
        fact that signed variables do not overflow only when only_exit
        is true.
        (loop_only_exit_p): New.
        (number_of_iterations_exit): Pass result of loop_only_exit_p to
        number_of_iterations_cond.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/26643
        * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
        bit_field_refs.

2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
        (divsi3_i4_int): Likewise.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

        * expr.c (emit_group_store): Only create a new pseudo reg if the
        quantity it needs to hold isn't already a suitable pseudo.

2006-03-28  Jeff Law  <law@redhat.com>

        * timevar.def (TV_TREE_PHI_CPROP): New timevar.
        * tree-ssa-dom.c (pass_phi_only_cprop): Use it.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
        the equivalent ~X & Y, and the symmetry related transformations.
        (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
        ~X & Y, and symmetry related transforms.

2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        Revert my 2006-03-27 patches.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
        ~(T1)X, when T1 and T2 are integer types of the same precision
        and (T2)X isn't an extension.

2006-03-28  Jeff Law  <law@redhat.com>

        PR tree-optimization/26796
        * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
        need EH edge cleanups rather than purging them immediately.
        (eliminate_degenerate_phis): Handle queued EH cleanups.

2006-03-28  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
        from parent_var.

2006-03-27  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/22524
        * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
        cast BIT_NOT_EXPR operand to the correct type.

2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-loop-linear.c: Don't include varray.h.
        (gather_interchange_stats, try_interchange_loops,
        linear_transform_loops): Use VEC instead of VARRAY.
        * lambda-mat.c: Don't include varray.h.
        * tree-chrec.c: Same.
        * lambda-trans.c: Same.
        * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
        VEC instead of VARRAY.
        * tree-vectorizer.h: Idem.
        * tree-data-ref.c (dump_data_references,
        dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
        initialize_data_dependence_relation, finalize_ddr_dependent,
        compute_all_dependences, find_data_references_in_loop,
        compute_data_dependences_for_loop, analyze_all_data_dependences,
        free_dependence_relation, free_dependence_relations,
        free_data_refs): Idem.
        * tree-data-ref.h (data_reference_p, subscript_p): New.
        (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
        VEC instead of VARRAY.
        (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
        (find_data_references_in_loop, compute_data_dependences_for_loop,
        dump_ddrs, dump_dist_dir_vectors, dump_data_references,
        dump_data_dependence_relations, free_dependence_relations,
        free_data_refs): Adjust declaration.
        (lambda_transform_legal_p): Move declaration here...
        * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
        vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
        vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
        vect_analyze_data_refs): Use VEC instead of VARRAY.
        * lambda.h (lambda_transform_legal_p): ...from here.
        * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
        * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
        * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
        tree-chrec.o): Don't depend on VARRAY_H.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * rtl.def (Copyright): Update date.
        (DEPS_LIST): Change type of the second operand to 'int'.
        * target.h (Copyright): Update date.
        (struct gcc_target.speculate_insn): Change type of the second parameter
        to 'int'.
        * lists.c (Copyright): Update date.
        (alloc_DEPS_LIST): Change signature.  Update reference to the second
        operand of the DEPS_LIST.
        (copy_DEPS_LIST_list): Update reference to the second operand of the
        DEPS_LIST.
        * rtl.h (Copyright): Update date.
        (alloc_DEPS_LIST): Update signature.
        * sched-int.h (Copyright): Update date.
        (ds_t): Change typedef to 'int'.
        (DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (Copyright): Update date.
        (try_ready): Change condition to restore non-speculative pattern
        of the instruction.
        (process_insn_depend_be_in_spec): Code to keep probability of the
        speculative dependence non-decreasing.

2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * regrename.c (replace_oldest_value_addr): Initialize a variable to
        shut up the compiler.

2006-03-27  J"orn Rennecke <joern.rennecke@st.com>

        * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
        to use lib prefix for target.
        ($(T)libic_invalidate_array_4-200.a): Likewise.
        ($(T)libic_invalidate_array_4a.a): Likewise.

2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
            J"orn Rennecke <joern.rennecke@st.com>

        * superh.opt: New file.
        * sh.c (boardtype, osruntime): Remove.
        * superh.h (SUBTARGET_OPTIONS): Remove.
        * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.

        * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
        arguments with ^ and/or [].

        * config.gcc (sh-*-*): Add quoting to account for quirk of
        Solaris /bin/sh.
        Replace == with = in enable_incomplete_targets test.

        * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
        with MASK_LITTLE_ENDIAN.

        * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
        * config/sh/sh.opt: Added to some comments.
        * config/sh/superh.h: Removed some chaff.

        * config/sh/sh.opt: Add m4-[1234]00* options.
        * config/sh/sh.c (sh_handle_option): Likewise.
        * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
        (ic_invalidate_array_4-100.o): New rule.
        ($(T)libic_invalidate_array_4-100.a): Likewise.
        (ic_invalidate_array_4-200.o): Likewise.
        ($(T)libic_invalidate_array_4-200.a): Likewise.
        (ic_invalidate_array_4a.o): Likewise.
        ($(T)libic_invalidate_array_4a.a): Likewise.
        * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
        * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
        m4-200*, and m4a*.
        * config/sh/crt1.asm: Merged in profiling code.
        * config/sh/superh.h (STARTFILE_SPEC): Override.
        * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
        Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
        * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.

        * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
        * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
        MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.

        * sh.opt (mpretend-cmove): New option.
        * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
        * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
        (movsicc): Add TARGET_PRETEND_CMOVE code.

2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
        s390_class_max_nregs): New function prototypes.
        * config/s390/s390.c (REGNO_PAIR_OK): New macro.
        (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
        * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
        CLASS_MAX_NREGS): Macro bodies replaced by function calls.

2006-03-26  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (add_location_or_const_value_attribute): Call
        tree_add_const_value_attribute if nothing else works.
        (reference_to_unused): New.
        (rtl_for_decl_init): Use reference_to_unused to decide whether
        to output an initializer.

2006-03-27  Alan Modra  <amodra@bigpond.net.au>

        PR target/26459
        * config/rs6000/rs6000.md (DF reg move peephole): Prevent
        peephole removing spe frob_di_df_2.

2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>

        * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
        (subscript_dependence_tester_1): Declared.
        (print_dir_vectors, print_dist_vectors): New.
        (debug_data_dependence_relation): New.
        (dump_data_dependence_relation): Print more details.
        (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
        (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
        (save_dist_v, save_dir_v, add_outer_distances,
        build_classic_dist_vector_1): New.
        (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
        Don't test for lambda_vector_lexico_pos.
        (same_access_functions, add_multivariate_self_dist,
        add_other_self_distances, dir_from_dist): New.
        (build_classic_dir_vector): Replace implementation almost identical to
        build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
        dir_from_dist.
        (subscript_dependence_tester_1): New.
        (subscript_dependence_tester): Handle the lexicographically negative
        distance vectors by recomputing the dependence relation.
        (compute_affine_dependence): Remove parameter loop_nest_depth.
        (compute_self_dependence): Don't call compute_subscript_distance.
        (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
        Add a parameter for the loop_nest.
        (find_loop_nest_1, find_loop_nest): New.
        (compute_data_dependences_for_loop): Compute the loop nest, and give
        up if the nest is not well formed.
        * tree-data-ref.h (loop_p): New.
        (struct data_dependence_relation): Replace size_vect field with
        loop_nest, a vec of loops.
        (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
        (DDR_LOOP_NEST): New.
        (print_dir_vectors, print_dist_vectors,
        debug_data_dependence_relation): Declared.
        (index_in_loop_nest): New.
        * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
        DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
        distance.

2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_relational_operation): Call
        simplify_relational_operation_1 even if mode is VOIDmode.

2006-03-25  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/26804
        * tree.h (DECL_CALL_CLOBBERED): New macro.
        (tree_decl_common): Add call_clobbered_flag.
        * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
        (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
        (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
        (mark_non_addressable): Ditto.
        * tree-ssa.c (verify_call_clobbered): New function.
        (verify_alias_info): Use it.
        * tree-pass.h (pass_reset_cc_flags): New prototype.
        * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
        (reset_cc_flags): New function.
        * passes.c (init_optimization_passes): Call reset_cc_flags after
        initializing referenced_vars.

2006-03-25  Uros Bizjak  <uros@kss-loka.si>
            Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26717
        * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
        to 1.0 for non-real operands. Implement A / A optimization for
        complex operands.

2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (size_cost): Correct the comment for
        cost of storing fp registers.
        (i386_cost): Likewise.
        (i486_cost): Likewise.
        (pentium_cost): Likewise.
        (pentiumpro_cost): Likewise.
        (k6_cost): Likewise.
        (athlon_cost): Likewise.
        (k8_cost): Likewise.
        (pentium4_cost): Likewise.
        (nocona_cost): Likewise.
        (generic64_cost): Likewise.
        (generic32_cost): Likewise.

2006-03-24  Denis Chertykov  <denisc@overta.ru>

        * config/avr/avr-protos.h (extra_constraint): Delete.
        (extra_constraint_Q): New declaration.
        * config/avr/constraints.md: New file.
        * config/avr/avr.md: Include it.
        (REG_X, REG_Y, REG_Z, REG_W): New constants.
        (TMP_REGNO, ZERO_REGNO): Likewise.
        (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
        * config/avr/avr.c (avr_reg_class_from_letter): Delete.
        (extra_constraint): Delete.
        (extra_constraint_Q): Test for memory constraint 'Q'.
        * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
        (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.
        (TMP_REGNO): Delete.
        (ZERO_REGNO): Delete.

2006-03-24  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
        directly.  Call mark_new_vars_to_rename slightly earlier.

2006-03-24  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
        (is_cxx): Likewise.
        (gen_compile_unit_die): Use new language types for Objective-C and
        Objective-C++.
        (dwarf2out_decl): Use is_cxx rather than testing explicitly against
        DW_LANG_C_plus_plus.

        PR 26793
        * config/t-darwin (crt3.o): Work around bug 26840.
        * config/darwin-crt3.c: Rewrite.
        * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.

2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/invoke.texi: Document -femit-class-debug-always
        * common.opt: Add -femit-class-debug-always.

2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_decompose_address): Allow SImode for
        index and base register.
        (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
        print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
        with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
        REGNO_OK_FOR_INDEX_P.
        * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
        ADDR_REGNO_P.
        (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
        REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
        REG_OK_FOR_BASE_P): Definitions removed.

2006-03-24  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/26611
        * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
        non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
        set yet or weren't marked as local yet.

2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>

        * regrename.c (scan_rtx_address): Initialize a variable to shut up
        the compiler.

2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>

        * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
        (rs6000_legitimate_small_data_p): Delete.
        * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
        (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
        and make static.  Add forward declaration.  Update uses.
        (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
        of offsettable_memref_p.
        * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
        Use rs6000_offsettable_memref_p instead of a less accurate predicate.

2006-03-24  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
        around bug in immediate-use iterator.

2006-03-24  Alan Modra  <amodra@bigpond.net.au>

        PR target/26607
        * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
        or __LITTLE_ENDIAN__.

2006-03-23  J"orn Rennecke <joern.rennecke@st.com>

        * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
        * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
        * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
        * config/sh/sh.opt (mdiv=): Amend description.
        * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
        (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
        (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
        SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
        (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
        Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
        * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
        (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
        TARGET_DIVIDE_CALL_FP.

2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (choose_ready): Fix type of the local variable.
        Move local variables.  Add comment.
        (check_reg_live): Change signature.  Make callable from debugger.
        * sched-int.h (check_reg_live): Update signature.
        * sched-ebb.c (check_reg_live): Update parameters.
        * sched-rgn.c (check_reg_live): Ditto.
        (region_head_or_leaf_p): Check pointer before dereferencing.
        * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
        before reload on optimization levels below 1.

2006-03-23  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
        tls symbols.

        PR target/26347
        * config/alpha/predicates.md (local_symbolic_operand): Reject
        weak symbols.

2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26795
        * tree-ssa-pre.c (create_value_expr_from): Don't reject
        expressions which have overflowed constants.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

        * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloopmanip.c (create_loop_notes): Removed.
        * final.c (final_scan_insn): Do not handle loop notes.
        * jump.c (squeeze_notes): Ditto.
        * cfglayout.c (skip_insns_after_block,
        duplicate_insn_chain): Ditto.
        * cfgcleanup.c (rest_of_handle_jump2): Do not call
        create_loop_notes.
        * cfgloop.h (create_loop_notes): Declaration removed.

2006-03-23  Richard Sandiford  <richard@codesourcery.com>

        * varasm.c (output_constant_pool): Restore fnname and fndecl
        arguments.
        (assemble_start_function): Adjust call accordingly.
        (assemble_end_function): Likewise.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR mudflap/26789
        * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.

        PR mudflap/26790
        * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR driver/22600
        * system.h (ICE_EXIT_CODE): New macro.
        * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
        (diagnostic_action_after_output): Likewise.
        * gcc.c (fatal_ice): New function.
        (execute): Use it instead of fatal.
        (fancy_abort): Likewise.
        * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.

2006-03-22  Jeff Law  <law@redhat.com>

        * loop-unroll.c (analyze_iv_to_split_insn): Handle
        iv_analyze_result returning false.

2006-03-22  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.

2006-03-22  Richard Henderson  <rth@redhat.com>

        PR middle-end/26084
        * except.c (duplicate_eh_regions_0): New.
        (duplicate_eh_region_1): Duplicate the children of the node as
        well as the node itself.  Link them up properly.
        (duplicate_eh_region_2): Merge into ...
        (duplicate_eh_regions): ... here.  Take copy_region argument, and
        copy only a sub-tree if asked.  Simplify copying and fixup.
        (eh_region_outer_p): New.
        * except.h (duplicate_eh_regions): Update decl.
        (eh_region_outer_p): Declare.
        * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
        (lower_omp_master): Likewise.
        (lower_omp_ordered): Likewise.
        * tree-cfg.c (struct move_stmt_d): Add new_label_map.
        (move_stmt_r): Use it to remap labels.  Handle recursion vs
        remap_decls_p properly.
        (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
        (find_outermost_region_in_block): New.
        (new_label_mapper): New.
        (move_sese_region_to_fn): Copy eh information to the new function
        properly.
        * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
        argument.
        * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
        number.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

        * doc/md.texi (-mshared): Mention that -mshared code can be linked
        into shared libraries.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

        * doc/md.texi: Refer to i386/constraints.md instead of
        i386/predicates.md.
        * config/i386/constraints.md: New file, extracted from...
        * config/i386/predicates.md: ...here.
        * config/i386/i386.md: Include constraints.md.

2006-03-21  Jason Merrill  <jason@redhat.com>

        * builtins.c (expand_builtin_fork_or_exec): Fix pasto.

        PR middle-end/20297
        * expr.c (init_block_move_fn): Force default visibility.
        (init_block_clear_fn): Likewise.
        * builtins.c (expand_builtin_fork_or_exec): Likewise.
        * targhooks.c (default_external_stack_protect_fail): Likewise.

2006-03-21  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/predicates.md (const_call_insn_operand): Allow direct
        calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
        * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
        Use TARGET_OLDABI instead of !TARGET_NEWABI.
        (loadgp): Use mips_current_loadgp_style.
        (loadgp_noshared): New pattern.
        (sibcall_internal): Use MIPS_CALL.
        (sibcall_value_internal): Likewise.
        (sibcall_value_multiple_internal): Likewise.
        (call_internal): Likewise.
        (call_value_internal): Likewise.
        (call_value_multiple_internal): Likewise.
        (call_split): Use MIPS_CALL and add an 'S' constraint.
        (call_value_split): Likewise.
        (call_value_multiple_split): Likewise.
        * config/mips/mips.opt (-mabicalls): Tweak docstring.
        (-mshared): New option.
        * config/mips/mips-protos.h (mips_loadgp_style): New enum.
        (mips_current_loadgp_style): Declare.
        * config/mips/mips.c (mips_classify_symbol): Avoid using
        SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
        rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
        TARGET_ABSOLUTE_ABICALLS.
        (override_options): Adjust comments.  Improve the warning that is
        issued when -mabicalls and -G are used together.
        (mips_file_start): Remove comment.
        (mips_current_loadgp_style): New function.
        (mips_gnu_local_gp): New variable.
        (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
        LOADGP_ABSOLUTE.
        (mips_output_function_prologue): Use mips_current_laodgp_style.
        (mips_expand_prologue): Call mips_emit_loadgp before emitting
        the cprestore instruction.
        (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
        live for TARGET_ABSOLUTE_ABICALLS.
        * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
        (ASM_SPEC): Pass down -mshared and -mno-shared.
        (MIPS_CALL): New macro.
        * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
        definition.
        * doc/invoke.texi (-mabicalls): Update documentation.
        (-mshared): Document.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/unwind-hpux.c: New file.
        * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

        PR libgomp/26384
        * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.

2006-03-21  Jeff Law  <law@redhat.com>

        * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
        type conversions of a VR_VARYING source to a wider type.

2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
        tm_file on Solaris 10 and later.
        (sparc64-*-solaris2*): Likewise.
        (sparc-*-solaris2*): Likewise.
        * config/sol26.h: Rename to config/sol2-6.h.
        * config/sol2-10.h: New file.

2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26781
        * tree-ssa-pre.c (create_component_ref_by_pieces):
        Handle STRING_CST.

2006-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR c++/26690
        * tree.c (get_callee_fndecl): If CALL is error_mark_node,
        return it immediately.

2006-03-21  Michael Matz  <matz@suse.de>

        * genautomata.c (<struct state>, num_out_arcs, presence_signature):
        New members.
        (remove_arc, add_arc): Update num_out_arcs member.
        (set_out_arc_insns_equiv_num): Returns nothing instead of number
        of out arcs.
        (cache_presence): New function.
        (compare_states_for_equiv): New function.
        (state_is_differed): Don't take number of outargs, adjust callers.
        Use new invariant for speeding up.
        (init_equiv_class): Create initial classes based on sorted
        input.
        (partition_equiv_class): Don't track out_arcs_num.
        (evaluate_equiv_classes): Call cache_presence on all states and
        sort them.

2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
        * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
        (bfin_valid_reg_p): Test for pseudos explicitly and use only
        REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
        callers changed.
        * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
        (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
        (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
        (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
        REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
        macros.
        (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
        REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
        (REGNO_REG_CLASS): ARGP is in PREGS.
        * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
        IREGS.
        (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
        to deal with those addresses.
        * addresses.h: New file.
        * caller-save.c: Include "addresses.h".
        (init_caller_save): Use new base_reg_class function.
        * rtl-factoring.c: Include "addresses.h".
        (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
        * recog.c: Include "addresses.h".
        (preprocess_constraints): Use new base_reg_class function.
        * regrename.c: Include "addresses.h".
        (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
        functions.  Keep track of a new var INDEX_CODE to compute valid
        classes.
        (replace_oldest_value_addr): Likewise.
        (replace_oldest_value_mem): Use base_reg_class.
        * reload.c: Include "addresses.h".
        (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
        (find_reloads): Use new base_reg_class function.
        (find_reloads_address): Likewise; also use regno_ok_for_base_p.
        (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
        all callers and prototype changed.
        * reload1.c: Include "addresses.h".
        (maybe_fix_stack_asms): Use base_reg_class.
        * regclass.c: Include "addresses.h".
        (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
        (init_reg_autoinc): Use new base_reg_class function.
        (record_reg_classes): Likewise.
        (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
        OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
        Use new args to compute necessary class.

        * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
        regrename.o, rtl-factoring.o): Update dependencies.
        * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
        (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
        (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
        REG_OK_FOR_INDEX_P): Delete documentation.

2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>

        * config.gcc (sparc-*-solaris2*): Change the default CPU setting
        from V7 to V9 for Solaris 7 and above.

2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>

        * doc/invoke.texi: Document new flag -fargument-noalias-anything.
        * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
        argument pointers may not alias any other storage.
        * common.opt: Define option -fargument-noalias-anything.
        * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
        alias semantics is specified by flag_argument_noalias > 2.

2006-03-20  Jeff Law  <law@redhat.com>

        * tree-pass.h (pass_phi_only_copy_prop): Delete.
        (pass_phi_only_cprop): Declare.
        * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
        with phi_only_cprop
        * tree-ssa-dom.c (degenerate_phi_result): New function.
        (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
        (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
        (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
        (eliminate_degenerate_phis): Likewise.
        (pass_phi_only_cprop): New pass descriptor.
        * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
        support code.  Callers updated.
        (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
        (store_copy_prop): Likewise.
        (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.

2006-03-20  Jason Merrill  <jason@redhat.com>

        PR c++/21764
        * c-pragma.c (visstack): Move out of handle_pragma_visibility.
        (push_visibility, pop_visibility): Likewise.
        * c-pragma.h: Declare them.

2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.

        * config/sh/sh.c (find_regmode_weight): Change the type of the first
        parameter and use get_ebb_head_tail.
        (sh_md_init_global): Adjust uses of find_regmode_weight.

2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>

        * function.h (struct function) <x_tail_recursion_reentry>:
        Rename to x_stack_check_probe_note.
        (tail_recursion_reentry): Rename to stack_check_probe_note.
        * function.c: Replace tail_recursion_reentry with
        stack_check_probe_note everywhere.
        (expand_function_start): Only emit a note for
        stack_check_probe_note with -fstack-protect.
        * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.

        * emit-rtl.c (remove_unnecessary_notes): Remove.
        (pass_remove_unnecessary_notes): Remove.
        * rtl.h (remove_unnecessary_notes): Remove prototype.
        * final.c (final_start_function): Don't call remove_unnecessary_notes.
        * tree-pass.h (pass_remove_unnecessary_notes): Remove.
        * passes.c (pass_remove_unnecessary_notes): Don't run it.

2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/26629
        * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
        (valid_in_set): Handle ARRAY_REF.
        Change "if min_variant or VH" to asserts.
        (create_component_ref_by_pieces): Handle ARRAY_REF.
        (create_expression_by_pieces): Likewise.
        (can_PRE_operation): ARRAY_REFs can now be PRE'd.

2006-03-20  David Edelsohn  <edelsohn@gnu.org>

        * genpreds.c (write_insn_extra_address_constraint): Argument `c'
        is operand of switch, not str[0].

2006-03-20  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_handle_option): Use
        TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

        * genpreds.c (write_tm_preds_h): Add semicolon and newline at
        end of insn_extra_address_constraint declaration.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
        (no-sum-in-toc): Same.
        * config/rs6000/rs6000.c (rs6000_handle_option): Use new
        variables.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
        NO_FP_IN_TOC for -fPIC instead of mask.

        * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
        (BOOT_LDFLAGS): Delete.
        (LDFLAGS): Delete.
        * config/rs6000/t-aix52: Same.

        * config/rs6000/rs6000.md (store_multiple_power): Delete.
        (stmsi[345678]_power): New.

2006-03-17  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.opt: Add empty line to end of file.

2006-03-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26721
        * builtins.c (get_pointer_alignment): For component style references
        adjust alignment to the component type alignment.  Make sure
        to adjust alignment for component access of constants.

2006-03-17  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.md (strlensi): Emit barrier after
        unconditional jump.

2006-03-17  Paul Brook  <paul@codesourcery.com>

        * doc/install.texi: Docuemnt --with-mode.
        * config.gcc: Add --with-mode for arm*-*-*.
        * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".

2006-03-17  J"orn Rennecke <joern.rennecke@st.com>

        * sh.c (max_labelno_before_reorg): New variable.
        (sh_reorg): Initialize it.
        (find_barrier): Check max_labelno_before_reorg before using
        label_to_alignment.  Take length of explicit alignment insns
        into account.  When seeing a UNSPECV_CONST_END, return it.

        * sh.c (fixup_mova): Set mode of affected label to QImode.
        (untangle_mova): New function.
        (find_barrier): Use it.  Check mode of label before decrementing
        num_mova.
        (sh_reorg): Likewise.
        Set mode of all insns back to VOIDmode.

        * sh.c (MOVA_LABELREF): New macro.
        (mova_p, fixup_mova, sh_reorg): Use it.
        (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
        ADDR_DIFF_VEC matches mova.

2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>

        * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
        with ATTRIBUTE_UNUSED.

2006-03-17  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
        pointer, instead of assuming it is possible to derive the
        correct args size from a call insn.

2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * rtl.h (CONST_INT_P): Define.
        * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
        instead of GET_CODE(x) == CONST_INT.
        (vax_rtx_costs): Likewise.
        (vax_output_int_move): Likewise.
        (vax_output_int_add): Likewise.
        (legitimate_constant_address_p): Likewise.
        (index_term_p): Likewise.
        * config/vax/vax.h (PRINT_OPERAND): Likewise.
        * config/vax/vax.md (and<mode>3): Likewise.
        (ashrsi3): Likewise.
        (extv): Likewise.
        (movstricthi): Likewise.
        (movstrictqi): Likewise.
        (rotrsi3): Likewise.
        (five unnamed insns): Likewise.

2006-03-16  Geoffrey Keating  <geoffk@apple.com>

        * doc/tm.texi (SDB and DWARF): Add extra parameter to
        ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
        * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
        * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
        Pass to ASM_OUTPUT_DWARF_OFFSET.
        * dwarf2out.c (debug_frame_section): New.
        (output_call_frame_info): Use debug_frame_section.  Pass it to
        dw2_asm_output_offset.
        (output_die): Pass appropriate section to dw2_asm_output_offset.
        (output_compilation_unit_header): Likewise.
        (output_pubnames): Likewise.
        (output_aranges): Likewise.
        (enum dw_val_class): Break dw_val_class_lbl_offset into
        dw_val_class_lineptr and dw_val_class_macptr.
        (add_AT_lbl_offset): Delete.
        (add_AT_lineptr): New.
        (add_AT_macptr): New.
        (AT_lbl): Expect a lineptr or macptr.
        (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
        (attr_checksum): Likewise.
        (same_dw_val_p): Likewise.
        (size_of_die): Likewise.
        (value_format): Likewise.
        (output_die): Likewise.
        (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
        add_AT_lbl_offset.
        * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
        * config/i386/i386.c (x86_file_start): Call darwin_file_start.
        * config/darwin-protos.h (darwin_file_start): New.
        (darwin_asm_output_dwarf_offset): New.
        * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
        * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
        darwin_file_start.
        * config/darwin.c (darwin_emit_unwind_label): Don't output label
        if not EH section; simplify.
        (darwin_file_start): New.
        (darwin_asm_output_dwarf_offset): New.
        * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
        mark as 'debug'.
        (DEBUG_INFO_SECTION): Likewise.
        (DEBUG_ABBREV_SECTION): Likewise.
        (DEBUG_ARANGES_SECTION): Likewise.
        (DEBUG_MACINFO_SECTION): Likewise.
        (DEBUG_LINE_SECTION): Likewise.
        (DEBUG_LOC_SECTION): Likewise.
        (DEBUG_PUBNAMES_SECTION): Likewise.
        (DEBUG_STR_SECTION): Likewise.
        (DEBUG_RANGES_SECTION): Likewise.
        (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
        (ASM_OUTPUT_DWARF_OFFSET): New.

2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>

        * config.gcc (tm_defines): Always add to previous value rather
        than replacing it.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/predicates.md (splittable_const_int_operand): New,
        split from move_operand.
        (splittable_symbolic_operand): New.
        (move_operand): Add commentary.  Use splittable_const_int_operand.
        Inline mips_atomic_symbolic_constant_p.
        * config/mips/mips.md: Add combine splitters for handling moves
        of splittable_const_int_operands and splittable_symbolic_operands.
        * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
        (mips_split_symbol): Declare.
        (mips_move_integer): Declare.
        * config/mips/mips.c (mips_split_p): Make global.
        (TARGET_MIN_ANCHOR_OFFSET): Override default.
        (TARGET_MAX_ANCHOR_OFFSET): Likewise.
        (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
        (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
        (mips_offset_within_object_p): Handle block symbols.
        (mips_atomic_symbolic_constant_p): Delete.
        (mips_cannot_force_const_mem): Return false for constants that
        mips_legitimize_move can handle.
        (mips_use_blocks_for_constant_p): New function.
        (mips_split_symbol): Make global.
        (mips_move_integer): Likewise.  Add a temporary register argument.
        (mips_legitimize_const_move): Use splittable_const_int_operand and
        splittable_symbolic_operand.
        (mips_use_anchors_for_symbol_p): New function.
        * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
        (mips_split_p): Declare.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
        (mips*-*-linux*): Likewise.

2006-03-16  Roger Sayle  <roger@eyesopen.com>
            Daniel Speyer  <dspeyer@wam.umd.edu>

        PR middle-end/18259
        * tree-dump.c (dump_real): New function.
        (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
        * Makefile.in (REAL_H): New macro for dependencies on real.h.
        (tree-dump.o): Add $(REAL_H) to the dependencies.

2006-03-16  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/21781
        * real.c (real_from_string): If the mantissa is zero, don't bother
        parsing the exponent as the result should always be zero.

2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>

        * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * config/ia64/ia64.c (stops_p): Added explicit initialization.
        (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
        ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
        ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
        ia64_sched_finish_global): New static functions to implement
        hooks from gcc_target.sched.
        (spec_check_no, max_uid, pending_data_specs): New static variables.
        (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
        ia64_spec_check_src_p): New static functions.
        (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
        (TARGET_SCHED_ADJUST_COST): Removed.
        (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
        TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
        TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
        TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): New macros.
        (update_set_flags, group_barrier_needed, set_src_needs_barrier):
        Fixed to handle speculation checks.
        (rtx_needs_barrier): Fixed to handle speculative loads and
        their checks.
        (ia64_variable_issue): Added code to count speculative loads and their
        checks.
        (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
        speculative loads.
        (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
        New enumerations.
        (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
        New constants.
        (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
        (ia64_reorg): Reset stops_p to NULL after it is freed.
        * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
        UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
        (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
        chk_a.
        (data_speculative, control_speculative, check_load): New attributes.
        (mov<mode>_advanced, mov<mode>_speculative,
        mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
        zero_extend<mode>di2_speculative,
        zero_extend<mode>di2_speculative_advanced): New patterns for
        data and control speculative loads.
        (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
        check loads.
        (advanced_load_check_clr_<mode>, speculation_check_<mode>):
        New pattern for data and control speculation checks.
        (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
        ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
        reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
        Auxiliary definitions for the patterns.
        * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
        1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
        constraints.
        (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
        for speculation.
        (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
        * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
        2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
        New resource constraints.
        (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
        for speculation.
        (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
        * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
        msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
        msched-in-control-spec, msched-ldc, msched-control-ldc,
        msched-spec-verbose, msched-prefer-non-data-spec-insns,
        msched-prefer-non-control-spec-insns,
        msched-count-spec-in-critical-path): New flags to tune speculative
        scheduling.
        * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
        msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
        msched-in-control-spec, msched-ldc, msched-control-ldc,
        msched-spec-verbose, msched-prefer-non-data-spec-insns,
        msched-prefer-non-control-spec-insns,
        msched-count-spec-in-critical-path): Document new flags.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * target.h (struct spec_info_def): New opaque declaration.
        (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
        speculate_insn, needs_block_p, gen_check,
        first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
        * target-def.h (TARGET_SCHED_ADJUST_COST_2,
        TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
        TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
        gcc_target.sched.
        (TARGET_SCHED): Use new macros.
        * rtl.h (copy_DEPS_LIST_list): New prototype.
        * sched-int.h (struct sched_info): Change signature of new_ready field,
        adjust all initializations. New fields: add_remove_insn,
        begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
        region_head_or_leaf_p.
        (struct spec_info_def): New structure declaration.
        (spec_info_t): New typedef.
        (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
        recovery_block, orig_pat.
        (glat_start, glat_end): New variables declaraions.
        (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
        New access macros.
        (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
        DETACH_LIFE_INFO, USE_GLAT.
        (enum SPEC_SCHED_FLAGS): New enumeration.
        (NOTE_NOTE_BB_P): New macro.
        (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
        attach_life_info, debug_spec_status, check_reg_live): New functions.
        (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
        all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
        sched-ebb.c
        (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
        * ddg.c (get_block_head_tail): Adjust all uses.
        * modulo-sched.c (get_block_head_tail): Adjust all uses.
        (sms_sched_info): Initialize new fields.
        (contributes_to_priority): Removed.
        * haifa-sched.c (params.h): New include.
        (get_block_head_tail): Adjust all uses.
        (ISSUE_POINTS): New macro.
        (glat_start, glat_end): New global variables.
        (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
        nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
        old_last_basic_block, before_recovery, current_sched_info_var,
        rgn_n_insns, luid): New static variables.
        (insn_cost1): New function.  Move logic from insn_cost to here.
        (find_insn_reg_weight1): New function.  Move logic from
        find_insn_reg_weight to here.
        (reemit_notes, move_insn, max_issue): Change signature.
        (move_insn1): Removed.
        (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
        extend_bb): New static functions to support extension of scheduler's
        data structures.
        (generate_recovery_code, process_insn_depend_be_in_spec,
        begin_speculative_block, add_to_speculative_block,
        init_before_recovery, create_recovery_block, create_check_block_twin,
        fix_recovery_deps): New static functions to support
        generation of recovery code.
        (fix_jump_move, find_fallthru_edge, dump_new_block_header,
        restore_bb_notes, move_block_after_check, move_succs): New static
        functions to support ebb scheduling.
        (init_glat, init_glat1, attach_life_info1, free_glat): New static
        functions to support handling of register live information.
        (associate_line_notes_with_blocks, change_pattern, speculate_insn,
        sched_remove_insn, clear_priorities, calc_priorities, bb_note,
        add_jump_dependencies): New static functions.
        (check_cfg, has_edge_p, check_sched_flags): New static functions for
        consistancy checking.
        (debug_spec_status): New function to call from debugger.
        (priority): Added code to handle speculation checks.
        (rank_for_schedule): Added code to distinguish speculative instructions.
        (schedule_insn): Added code to handle speculation checks.
        (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
        Fixed to handle ebbs.
        (move_insn): Added code to handle ebb scheduling.
        (max_issue): Added code to use ISSUE_POINTS of instructions.
        (choose_ready): Added code to choose between speculative and
        non-speculative instructions.
        (schedule_block): Added code to handle ebb scheduling and scheduling of
        speculative instructions.
        (sched_init): Initialize new variables.
        (sched_finish): Free new variables.  Print statistics.
        (try_ready): Added code to handle speculative instructions.
        * lists.c (copy_DEPS_LIST_list): New function.
        * sched-deps.c (extend_dependency_caches): New function.  Move logic
        from create_dependency_caches to here.
        (get_dep_weak, ds_merge): Make global.
        * genattr.c (main): Code to output prototype for
        dfa_clear_single_insn_cache.
        * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
        (output_dfa_clean_insn_cache_func): Code to output
        dfa_clear_single_insn_cache function.
        * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
        n_insns.
        (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
        Removed.
        (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
        New static variables.
        (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
        fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
        struct sched_info.
        (ebb_sched_info): Initialize new fields.
        (get_block_head_tail): Adjust all uses.
        (compute_jump_reg_dependencies): Fixed to use glat_start.
        (schedule_ebb): Code to remove unreachable last block.
        (schedule_ebbs): Added code to update register live information.
        * sched-rgn.c (region_sched_info): Initialize new fields.
        (get_block_head_tail): Adjust all uses.
        (last_was_jump): Removed.  Adjust users.
        (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
        add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
        Implement new hooks.
        (check_dead_notes1): New static function.
        (struct region): New fields: dont_calc_deps, has_real_ebb.
        (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
        (BB_TO_BLOCK): Fixed to handle EBBs.
        (EBB_FIRST_BB, EBB_LAST_BB): New macros.
        (ebb_head): New static variable.
        (debug_regions, contributes_to_priority): Fixed to handle EBBs.
        (find_single_block_regions, find_rgns, find_more_rgns): Initialize
        new fields.
        (compute_dom_prob_ps): New assertion.
        (check_live_1, update_live_1): Fixed to work with glat_start instead of
        global_live_at_start.
        (init_ready_list): New assertions.
        (can_schedule_ready_p): Split update code to begin_schedule_ready.
        (new_ready): Add support for BEGIN_CONTROL speculation.
        (schedule_insns): Fixed code that updates register live information
        to handle EBBs.
        (schedule_region): Fixed to handle EBBs.
        (init_regions): Use extend_regions and check_dead_notes1.
        * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
        PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
        * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
        TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
        TARGET_SCHED_GEN_CHECK,
        TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
        TARGET_SCHED_SET_SCHED_FLAGS): Document.
        * doc/invoke.texi (max-sched-insn-conflict-delay,
        sched-spec-prob-cutoff): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
        inter_tick, queue_index.
        (struct sched_info): Change signature of init_ready_list field.
        Adjust all initializations.
        (RESOLVED_DEPS): New access macro.
        (ready_add): Remove prototype.
        (try_ready): Add prototype.
        * sched-rgn.c (init_ready_list): Use try_ready.
        (schedule_region): Initialize
        current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
        * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
        (init_ready_list): Use try_ready.
        (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
        * lists.c (remove_list_elem): Remove `static'.
        (remove_free_INSN_LIST_elem): New function.
        * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
        * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
        (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
        New constants.
        (readyp): New variable.
        (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
        change_queue_index, resolve_dep): New static functions.
        (try_ready): New function.  Adjust callers in sched-rgn.c and
        sched-ebb.c to use it instead of ready_add.
        (clock_var): Move at the begining of file.
        (rank_for_schedule): Fix typo.
        (queue_insn): Add assertion.  Handle QUEUE_INDEX.
        (ready_lastpos): Enforce assertion.
        (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
        update all callers.
        (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
        (schedule_insn): Rewrite to use try_ready and resolve_dep.
        (queue_to_ready): Use free_INSN_LIST_list.
        (early_queue_to_ready): Fix typo.
        (schedule_block): Init readyp.  Move init_ready_list call after the
        initialization of clock_var.  Fix error in rejecting insn by
        targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
        that previously corrected INSN_TICKs.  Add code for handling
        QUEUE_INDEX.
        (set_priorities): Fix typo.
        (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
        Clarify comment and code that keeps current_sched_info->next_tail
        non-null.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

        * sched-rgn.c (extend_rgns): New static function.
        (find_rgns): Use it.
        (gather_region_statistics, print_region_statistics): New static
        functions.
        * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
        * doc/invoke.texi (max-sched-extend-regions-iters): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
            Andrey Belevantsev <abel@ispras.ru>

        * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
        * lists.c (unused_deps_list): New variable.
        (free_list): Add assertions to verify the proper distinguishing
        between INSN_LISTs and DEPS_LISTs.
        (find_list_elem, remove_list_elem, remove_list_node): New static
        functions.
        (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
        remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
        remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
        (alloc_INSN_LIST): Assert that the list we're working on is indeed
        an INSN_LIST.
        (free_INSN_LIST_node): Likewise.
        * modulo-sched.c (current_sched_info): Initialize flags field.
        * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
        * rtl.def (DEPS_LIST): Define.
        * rtl.h: Declare new functions from lists.c.
        * sched-deps.c (spec_dependency_cache): New static variable.
        (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
        (add_dependence): Change return type to void.  Move the logic to ...
        (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
        (delete_all_dependences): Add comment about forward_dependency_cache.
        Handle spec_dependency_cache.  Handle DEPS_LISTs.
        (fixup_sched_groups): Clarify the change of priority of output
        and anti dependencies.
        (sched_analyze_2): Adjust add_dependence calls to create data
        speculative dependence.
        (add_forward_dependence): Renamed to add_forw_dep, change prototype.
        Adjust all callers.  Handle DEPS_LISTS.
        (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
        presence of speculation.
        (init_dependency_caches, free_dependency_caches):
        Handle spec_dependency_cache.
        (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
        estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
        New static functions.
        (add_or_update_back_dep, add_or_update_back_forw_dep,
        add_back_forw_dep, delete_back_forw_dep): New functions.
        * sched-int.h (ds_t, dw_t): New typedefs.
        (struct sched_info): Add new field flags.
        (struct haifa_insn_data): Add new bitfield has_internal_dep.
        Prototype new sched-deps.c functions.
        (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
        (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
        MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
        BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
        SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
        SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
        New constants.
        (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
        New enums.
        * sched-rgn.c (current_sched_info): Initialize flags field.
        (schedule_insns): Initialize current_sched_info before the sched_init
        call.
        * sched-ebb.c (current_sched_info): Initialize flags field.
        (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
        Call add_or_update_back_dep instead of add_dependence.
        Create control speculative dependencies.
        (schedule_insns): Initialize current_sched_info before the sched_init
        call.

2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
        fs->signal_frame.
        (sh_fallback_frame_state): Likewise.

2006-03-15  Geoffrey Keating  <geoffk@apple.com>

        * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
        Do switch on default_use_cxa_atexit.
        (powerpc*-*-darwin*): Build crt2.o on powerpc.
        * config/darwin-crt3.o: New.
        * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
        to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
        (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
        OS version.
        * config/rs6000/t-darwin: Move crt2.o building to here.
        * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
        Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
        of __cxa_atexit.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/vax/vax.c (nonindexed_address_p): Change logical negation
        from '! xxx' to '!xxx' for coding-style conformance.
        * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
        (EXTRA_CONSTRAINT): Likewise.
        * config/vax/vax.md (four unnamed insns): Likewise.

2006-03-15  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (minipool_pad): New.
        (add_minipool_forward_ref): Include pool alignment padding in address
        calculation.
        (push_minipool_fix): Set minipool_pad.
        (minipool_pad): Ditto.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/vax/vax.c (split_quadword_operands): Use MEM_P()
        instead of GET_CODE() == MEM and REG_P() instead of
        GET_CODE() == REG.
        (print_operand_address): Likewise.
        (vax_address_cost): Likewise.
        (vax_rtx_costs): Likewise.
        (vax_notice_update_cc): Likewise.
        (vax_output_int_add): Likewise.
        (INDEX_REGISTER_P): Likewise.
        (BASE_REGISTER_P): Likewise.
        (nonindexed_address_p): Likewise.
        (vax_mode_dependent_address_p): Likewise.
        * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
        (PRINT_OPERAND): Likewise.
        * config/vax/vax.md (ashlsi3): Likewise.
        (ashlsi3): Likewise.
        (some more unnamed insns): Likewise.

2006-03-15  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
        iterator-style macro.
        (mark_control_dependent_edges_necessary): Update the use of
        EXECUTE_IF_CONTROL_DEPENDENT.

2006-03-15  J"orn Rennecke <joern.rennecke@st.com>

        * config/sh/predicates.md (cache_address_operand): Special.
        (ua_address_operand): Likewise.

2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>

        * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
        loop notes.
        * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.

2006-03-15  Andreas Schwab  <schwab@suse.de>

        * gensupport.c (identify_predicable_attribute): Don't free p_false
        when it is still in use.

2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
        the default setting here.

2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>

        * tree-pass.h (pass_cfg): Remove.
        * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
        * passes.c (pass_cfg): Don't run it.

2006-03-14  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
        * reg-stack.c (stack_regs_mentioned_data): Change the type to
        VEC(char,heap) *.
        (stack_regs_mentioned): Update the uses of
        stack_regs_mentioned_data.  Don't access the array beyond its
        end.
        (reg_to_stack): Update the uses of stack_regs_mentioned_data.
        Don't include gt-reg-stack.h.

        * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
        * system.h (UNALIGNED_WORD_ASM_OP): Poison.

        * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.

        PR middle-end/26684
        * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
        STACK_REGS.

2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26672
        * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
        SSA form.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26667
        * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
        node for the callees.  Always allow inlining if it will shrink
        the function size.

2006-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26659
        * builtins.c (get_pointer_alignment): Prefer alignment
        information from decls over that from types.

2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/26657
        * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.

2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.opt (mdlmzb): New option.
        (msched-prolog, msched-epilog): Use Var not Mask.
        * doc/invoke.texi (-mdlmzb): Document.
        * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
        MASK_SCHED_PROLOG.
        (rs6000_override_options): Enable -mdlmzb for 405 and 440.
        * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.

2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>

        PR rtl-optimization/25739
        * bt-load.c (augment_live_range): Free tos pointer.

        * gensupport.c (identify_predicable_attribute): Free
        p_false pointer.
        * gcov.c (create_file_names): Free name pointer.

2006-03-13  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26557
        * stmt.c (emit_case_nodes): Handle the case where the index is a
        CONST_INT, where the comparison mode is specified by the index type.

2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
        is defined.

2006-03-13  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
        (*branch_fp_inverted): Likewise.

2006-03-13  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/25989
        * omp-low.c (expand_omp_for_generic): Mark istart0
        and iend0 as addressable.

2006-03-13  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.

2006-03-13  Jeff Law  <law@redhat.com>

        * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
        virtual operands are interesting.
        (vrp_visit_stmt): Corresponding changes.

2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
        of RETS.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
        TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
        * config/bfin/crti.S: Use it instead of __PIC__.
        * config/bfin/crtn.S: Likewise.

        * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
        call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
        not if flag_pic.
        Lose 'G' modifier for call operand.
        * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
        recognize 'G' modifier.

2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/18859
        * gimplify.c (gimplify_switch_expr): Discard empty ranges.
        * stmt.c (expand_case): Likewise.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/26254
        * loop-invariant.c (seq_insns_valid_p): New function.
        (move_invariant_reg): Only emit new code if it is valid.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
        Removed.
        (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
        (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
        (commit_one_edge_insertion): Do not look for loop notes.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * jump.c (follow_jumps): Do not check for loop notes.  Move check for
        flag_test_coverage out of loop.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * final.c (shorten_branches): Remove outdated comment, and turn
        the if branch that guards it to continue.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
        * cfgloop.h (struct loop): Remove unused fields.

2006-03-13  Kazu Hirata  <kazu@codesourcery.com>

        * doc/invoke.texi (-fdump-rtl-loop): Remove.
        (-dL, -fdump-rtl-loop2): Update the dump file names

        * doc/invoke.texi: Update dump file names.

2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>

        * predict.c (estimate_probability): Remove.
        * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
        * basic-block.h (estimate_probability): Remove prototype.
        * passes.c (finish_optimization_passes): Dump branch prediction or
        profiling heuristics to the .profile tree dump.
        (init_optimization_passes): Unqueue pass_branch_prob.

        * doc/invoke.texi (-fdump-rtl-bp): Remove.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

        * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
        * rtl.h (LABEL_NEXTREF): Remove field accessor.

2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>

        * function.h (frame_offset_overflow): Declare.
        * function.c (frame_offset_overflow): New function.
        (assign_stack_local_1): Call it to detect that the offset overflows.
        * cfgexpand.c (alloc_stack_frame_space): Likewise.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

        * config/sh/sh.c: Include alloc-pool.h.
        (label_ref_list_pool): New alloc pool.
        (label_ref_list_t): New type for lists of labels.
        (struct pool_node): Make wend a label_ref_list_t.
        (add_constant): Use the new type, eradicate LABEL_NEXTREF
        references.
        (dump_table): Likewise.
        (sh_reorg): Set up the alloc pool before using add_constant and
        dump_table, and destroy it when finishing.

2006-03-11  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.c: Remove redundant comment.

2006-03-10  Jason Merrill  <jason@redhat.com>

        PR c/26004
        * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
        the target was declared 'register'.

2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>

        * genpreds.c (write_insn_constraint_len): Change definition of
        insn_constraint_len to return size_t to match the declaration.

2006-03-10  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
        start at zero.
        (m32c_expand_insv): Fix test for an AND mask.

2006-03-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/26565
        * builtins.c (get_pointer_alignment): Handle component
        references for field alignment.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

        * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
        when building with libgloss.
        (sh*elf): Implement --without-fp option.
        (sh64-superh-linux*): Don't multilib.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

        * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.

2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>

        * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
        Set it when one of the replacement functions returned true.
        Return TODO_cleanup_cfg if cfgchanged is true.
        (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.

2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
        instead of gen_lowpart.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-protos.h (mips_output_conditional_branch): Change
        interface.
        (mips_output_order_conditional_branch): Declare.
        * config/mips/mips.h (MIPS_BRANCH): New macro.
        * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
        for the comparison.  Use gen_condjump.
        (mips_output_conditional_branch): Rework interface to take the
        asm templates for a direct branch and the inverse of a direct branch.
        (mips_output_order_conditional_branch): New function.
        (mips_builtin_branch_and_move): New function.
        (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
        branch condition.  Use gen_single_cc as the condition for
        __builtin_mips_upper_* or __builtin_mips_lower_*.
        (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
        Use VOIDmode for the branch condition.
        * config/mips/predicates.md (order_operator): New predicate.
        * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
        (branch_fp): Rename to...
        (*branch_fp): ...this.  Remove mode from comparison operator.
        Use new mips_output_conditional_branch interface.
        (branch_fp_inverted): Rename to...
        (*branch_fp_inverted): ...this and update as for *branch_fp.
        (*branch_zero<mode>): Rename to...
        (*branch_order<mode>): ...this.  Remove mode from comparison operator.
        Use mips_output_order_conditional_branch.  Only accept ordered
        comparisons.
        (*branch_zero<mode>_inverted): Rename to...
        (*branch_order<mode>_inverted): ...this and update as for
        *branch_order<mode>.
        (*branch_equality<mode>): Accept zero as the second operand to
        the equality operator.  Use the new mips_output_conditional_branch
        interface.
        (*branch_equality<mode>_inverted): Likewise.
        (condjump): New expander.
        * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
        operator.
        * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
        (bc1any2t, bc1any2f): Likewise.
        (single_cc): New expander.
        (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

        * doc/md.texi: Update documentation of MIPS constraints.
        * config/mips/constraints.md: New file.
        * config/mips/mips.md: Include it.
        * config/mips/mips.c (mips_char_to_class): Delete.
        (override_options): Don't initialize mips_char_to_class.
        * config/mips/mips.h (mips_char_to_class): Delete.
        (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT_Y): Delete.
        (EXTRA_CONSTRAINT_STR): Delete.
        (CONSTRAINT_LEN): Delete.
        (EXTRA_MEMORY_CONSTRAINT): Delete.

2006-03-09  Diego Novillo  <dnovillo@redhat.com>

        * tree-cfg.c (move_block_to_fn): Remove the statements from the
        original fn's eh regions.

2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (build_range_check): Make sure to use a valid type to
        apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
        transformation.

        (range_predecessor): New static function.
        (range_successor): Likewise.
        (merge_ranges): Use them to compute predecessors and successors of
        range bounds.

2006-03-09  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/26561
        * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
        X op C3, consider whether C3 overflows towards +Inf or -Inf.

2006-03-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/addsub.md (addqi3): Disparage a0/a1.
        (addpsi3): Expand to include memory operands.  Remove
        reload-specific splits.
        * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
        (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
        (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
        (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
        (shift1_qi, shift1_hi, insv): New.
        * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
        (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
        cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
        cond_to_int): New.
        * config/m32c/m32c-protos.h: Update as needed.
        * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
        default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
        Fail for unrecognized R* constraints.
        (m32c_cannot_change_mode_class): Be more picky about pseudos.
        (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
        (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
        Add Sp constraint.
        (m32c_init_libfuncs): New.
        (m32c_legitimate_address_p): Add debug wrapper.
        (m32c_rtx_costs): New.
        (m32c_address_cost): New.
        (conversions): Add 'B' prefix.
        (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
        operands, or word regnames for QI operands.  'B' prints bit
        position.
        (m32c_expand_setmemhi): New.
        (m32c_expand_movmemhi): New.
        (m32c_expand_movstr): New.
        (m32c_expand_cmpstr): New.
        (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
        (m32c_expand_neg_mulpsi3): Handle non-ints.
        (m32c_cmp_flg_0): New.
        (m32c_expand_movcc): New.
        (m32c_expand_insv): New.
        (m32c_scc_pattern): New.
        * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
        a0/a1 out of SIregs.
        (STORE_FLAG_VALUE): New.
        * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
        code macros.
        (no_insn): New.
        * config/m32c/mov.md: Make constraints more liberal.
        (zero_extendqihi2): Optimize r0/r1 case.
        * config/m32c/muldiv.md (mulpsi3): Check for intvals.
        * config/m32c/predicates.md (m32c_any_operand): New.
        (m32c_nonimmediate_operand): New.
        (m32c_hl_operand): New.
        (m32c_r3_operand): New.
        (ap_operand): New.
        (ma_operand): New.
        (memsym_operand): New.
        (memimmed_operand): New.
        (a_qi_operand): New.
        (m32c_eqne_operator): New.
        (m32c_1bit8_operand): New.
        (m32c_1bit16_operand): New.
        (m32c_1mask8_operand): New.
        (m32c_1mask16_operand): New.
        * config/m32c/blkmov.md: New file.
        * config/m32c/t-m32c (MD_FILES): Add blkmov.

2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>

        * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
        unsigned to fix signed/unsigned comparison issue in
        DWARF2_FRAME_REG_OUT.
        (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
        unsigned comparison issue in DWARF2_FRAME_REG_OUT.

        * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
        of ptr into the ENABLE_CHECKING section.

2006-03-08  Jeff Law  <law@redhat.com>

        * tree-vrp.c (infer_value_range): Only count pointer uses
        and dereferences if -fdelete-null-pointer-checks is enabled.

        * tree-vrp.c (find_assert_locations): Infer value ranges for
        single use pointers, but do not create ASSERT_EXPRs for them.
        When a non-null range is inferred for a pointer, backwards
        propagate that range to other equivalent pointers through the
        use-def chain.

2006-03-08  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/26500
        * Makefile.in (dvi, html, install-info): Invoke the corresponding
        language hook targets.
        * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
        objcp/Make-lang.in: Create stub rules for dvi, html, install-info
        if language hook targets were missing.

2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-opfinalize.h: Removed.
        * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
        dependency.
        * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
        (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
        INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
        add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
        finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
        finalize_ssa_v_must_def_ops): New.

2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
        block as parameter.

2006-03-07  Geoffrey Keating  <geoffk@apple.com>

        * varasm.c (assemble_end_function): Say that 'fnname' is unused.

        * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
        addresses with offsets; reorganize.

        * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
        (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
        (expand_builtin_init_dwarf_reg_sizes): Likewise.

2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>

        PR target/26588
        * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.

2006-03-08  Ben Elliston  <bje@au.ibm.com>

        * config/fp-bit.h (CMPtype): Typedef to a word mode integer.

2006-03-07  Aldy Hernandez  <aldyh@redhat.com>

        PR gomp/26238
        * doc/passes.texi (Tree-SSA passes): Document omp lowering and
        expansion.

2006-03-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26587
        * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

        * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

        * hooks.c (hook_bool_mode_rtx_true): New function.
        * hooks.h (hook_bool_mode_rtx_true): Declare.
        * toplev.c (compile_file): Call output_shared_constant_pool.
        * varasm.c (shared_constant_pool): New variable.
        (assemble_start_function, assemble_end_function): Remove arguments
        from call to output_constant_pool.
        (create_constant_pool): New function, split out from...
        (init_varasm_status): ...here.
        (force_const_mem): Choose between the shared and per-function constant
        pools.  Set current_function_uses_const_pool when reusing old entries
        as well as when creating new ones.
        (mark_constant): Ignore data argument.
        (mark_constants): Remove pool argument.
        (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
        to decide whether the function uses a constant pool.
        (output_constant_pool_contents): New function, split out from...
        (output_constant_pool): ...here.
        (output_shared_constant_pool): New function.
        (init_varasm_once): Initialize shared_constant_pool.
        * output.h (output_constant_pool): Delete.
        (output_shared_constant_pool): Declare.
        * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
        * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.

2006-03-06  Nick Clifton  <nickc@redhat.com>

        * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
        flag_strength_reduce.

2006-03-06  Ben Elliston  <bje@au.ibm.com>

        * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
        x86_64-*-linux* configurations.

        * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
        (LIBGCC2_WORDS_BIG_ENDIAN): Define.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
        Remove.
        * basic-block.h: Remove the extern for
        rediscover_loops_after_threading.

        * cfgloop.c (cancel_loop): Make it static.
        * cfgloop.h: Remove the prototype for cancel_loop.

        * flow.c (recompute_reg_usage): Make it static.
        * rtl.h: Remove the prototype for recompute_reg_usage.

        * function.c (use_return_register): Make it static.
        * function.h: Remove the prototype.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * recog.c (volatile_mem_p, validate_change_maybe_volatile):
        Remove.
        * recog.h: Remove the prototype for
        validate_change_maybe_volatile.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (replace_reg): Remove.
        * rtl.h: Remove the prototype for replace_reg.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

        * regclass.c (reg_scan_update): Remove.
        (reg_scan_mark_refs): Remove the last argument.
        * rtl.h: Remove the prototype for reg_scan_update.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
        combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
        config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
        config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
        df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
        loop-invariant.c, omp-low.c, opts.c, passes.c,
        rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
        tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
        tree-ssa-structalias.c, tree-ssa-threadedge.c,
        tree-ssa-threadupdate.c, tree-vect-patterns.c,
        tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
        unwind-dw2.c: Fix comment typos.  Follow spelling conventions.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
        * dwarf2out.h: Remove the prototype for
        dwarf2out_add_library_unit_info.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * tree.c (add_var_to_bind_expr): Remove.
        * tree.h: Remove the prototype for add_var_to_bind_expr.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * regclass.c (n_non_fixed_regs): Remove.
        (init_reg_sets_1, globalize_reg): Remove all uses of
        n_non_fixed_regs.
        * hard-reg-set.h: Remove the extern for n_non_fixed_regs.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (insns_safe_to_move_p): Remove.
        * rtl.h: Remove the prototype for insns_safe_to_move_p.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

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

2006-03-04  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
        and REG_SAVED_VAL_EXP constants.
        * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
        (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
        Handle regs stored by value.
        (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
        (execute_cfa_program): Handle DW_CFA_val_offset,
        DW_CFA_val_offset_sf and DW_CFA_val_expression.
        (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
        value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
        (uw_install_context_1): Handle target regs stored by value.

2006-03-03  Daniel Berlin  <dberlin@dberlin.org>

        * tree-sra.c (tree_sra): Return todoflags;
        (generate_one_element): Set TODO_update_smt_usage if needed.
        (pass_sra): Remove TODO_update_smt_usage.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
        parameter.
        (tree_ssa_forward_propagate_single_use_vars): Return
        TODO_update_smt_usage if we need to update SMT usage.
        (pass_forwprop): Remove TODO_update_smt_usage.

2006-03-03  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
        (correct_use_link): Remove reference to get_stmt_operands.
        (update_stmt_operands): Likewise.
        (get_modify_expr_operands): New function factored out of
        parse_ssa_operands and get_expr_operands.
        Try to create V_MUST_DEFs for LHS by default.
        (get_expr_operands) <case MODIFY_EXPR>: Call
        get_modify_expr_operands.
        <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
        <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
        (parse_ssa_operands) <case MODIFY_EXPR>: Call
        get_modify_expr_operands.

2006-03-03  Kazu Hirata  <kazu@codesourcery.com>

        * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
        * tree-flow.h: Remove the prototype for
        referenced_var_lookup_if_exists.

2006-03-03  Steve Ellcey  <sje@cup.hp.com>

        PR rtl-optimization/26345
        PR target/19061
        * config/ia64/predicates.md (basereg_operand): Don't look in subregs.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

        PR tree-optimization/26524
        * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
        fold_convert to create a constant of the appropriate type.

2006-03-03  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
        of SYMBOL_FLAG_IN_BLOCK.
        * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
        instead of SYMBOL_REF_IN_BLOCK_P.
        * explow.c (use_anchored_address): Likewise.
        * rtl.c (rtx_size): Likewise.
        * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
        instead of SYMBOL_FLAG_IN_BLOCK.
        (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        (assemble_variable): Likewise.
        (output_constant_def_contents): Likewise.
        (output_constant_pool): Likewise.
        (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
        instead of SYMBOL_FLAG_IN_BLOCK.
        * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        (SYMBOL_REF_BLOCK): Likewise.
        (SYMBOL_REF_OFFSET): Likewise.
        (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
        SYMBOL_REF_IN_BLOCK_P.
        (SYMBOL_FLAG_IN_BLOCK): Replace with...
        (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
        (SYMBOL_REF_IN_BLOCK_P): Replace with...
        (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.

2006-03-03  Jakub Jelinek  <jakub@redhat.com>

        * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.

2006-03-02  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_unary_operation): When simplifying
        (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
        that we perform the right shift in the appropriate mode, and
        then extend or truncate the result to requested mode.

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

        * gengtype.c (main): Handle double_int type.
        * tree.h (struct tree_int_cst): Make type of int_cst double_int.
        * double-int.c: New file.
        * double-int.h: New file.
        * system.h: Include doubleint.h.
        * Makefile.in (SYSTEM_H): Include double-int.h.
        (double-int.o): Add.

2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>

        PR bootstrap/26478
        * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
        copying over it.

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

        * tree-vrp.c (remove_range_assertions): Do not update statements
        unnecessarily.

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

        * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
        cleanup.
        * gcse.c (rest_of_handle_gcse): Ditto.
        * except.c (gate_handle_eh): Ditto.
        * cfgcleanup.c (rest_of_handle_jump2): Ditto.
        * basic-block.h (CLEANUP_PRE_LOOP): Remove.

2006-03-02  Eric Christopher  <echristo@apple.com>

        * config/i386/i386.c (machopic_output_stub): Add indirection to
        jump.

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

        * loop.c: Removed.

2006-03-02  David S. Miller  <davem@sunset.davemloft.net>

        Sun Niagara specific optimizations.
        * config.gcc: Recognize niagara as target.
        * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
        (TARGET_CPU_niagara): Define.
        (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
        (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
        (CPP_CPU_SPEC): Handle -mcpu=niagara.
        (ASM_CPU_SPEC): Likewise.
        (PROCESSOR_NIAGARA): New enum entry.
        (REGISTER_MOVE_COST): Handle Niagara.
        (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
        * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
        (sparc_override_options): Recognize "niagara", set appropriate
        default MASK_* values for it, and align functions to 32-bytes
        by default just like ULTRASPARC/ULTRASPARC3.
        (sparc_initialize_trampoline): Handle niagara like ultrasparc.
        (sparc64_initialize_trampoline): Likewise.
        (sparc_use_sched_lookahead): Use zero for niagara.
        (sparc_issue_rate): Use one for niagara.
        * config/sparc/niagara.md: New file.
        * config/sparc/sparc.md: Include it.
        * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
        ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
        when default cpu is niagara.
        (CPP_CPU_SPEC): Handle -mcpu=niagara.
        (ASM_CPU_SPEC): Likewise.
        * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
        when default cpu is niagara.
        (ASM_CPU_SPEC): Handle -mcpu=niagara.
        * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
        just like v9/ultrasparc/ultrasparc3.
        * doc/invoke.texi: Add documentation for "niagara" and improve
        existing documentation for ultrasparc variants.

2006-03-02  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-operands.c (update_stmt_operands): Update documentation.

2006-03-02  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
        (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
        and say that only one is needed.
        * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
        * target.h (have_switchable_bss_sections): New hook.
        * explow.c (use_anchored_address): Check that the symbol is in a block.
        * varasm.c (tls_comm_section, comm_section, lcomm_section)
        (bss_noswitch_section): New variables.
        (get_unnamed_section): Add SECTION_UNNAMED to the flags.
        (get_noswitch_section): New function.
        (get_block_for_section): Allow SECT to be null.
        (unlikely_text_section_p): Use SECTION_STYLE.
        (bss_initializer_p): New function.
        (get_variable_section): Move earlier in file.  Take a new argument,
        prefer_noswitch_p.  Move bss checks from assemble_variable to here.
        Return one of the new *_sections in such cases.
        (get_block_for_decl): New function, extracting some logic from
        use_blocks_for_decl_p.
        (change_symbol_section): Remove in favor of...
        (change_symbol_block): ...this new function.
        (use_blocks_for_decl_p): Remove checks now performed by
        get_block_for_decl.
        (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
        (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
        (emit_local, emit_bss, emit_common): ...these new functions.
        Return true if the alignment was honored.
        (emit_tls_common): New function.
        (asm_emit_uninitialised): Delete.
        (assemble_variable_noswitch): New function, split out from...
        (assemble_variable): ...here.  Don't make decisions about common
        variables here.  Globalize all public decls that go into non-common
        sections.  Check whether SYMBOL_REF_BLOCK is null.
        (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
        (output_constant_pool): Likewise.
        (init_varasm_once): Initialize the new section variables.
        (have_global_bss_p): New function.
        (categorize_decl_for_section): Use bss_initializer_p.
        (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
        (place_block_symbol): Assert that the symbol must be in a block.
        * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
        (TARGET_INITIALIZER): Include it.
        * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
        * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
        (SECTION_MACH_DEP): Bump by two.
        (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
        (unnamed_section): Mention SECTION_UNNAMED in comment.
        (named_section): Likewise SECTION_NAMED.
        (noswitch_section_callback): New type.
        (noswitch_section): New structure.
        (section): Add a noswitch_section alternative.
        (SECTION_STYLE): New macro.
        (tls_comm_section, comm_section, lcomm_section): Declare.
        (bss_noswitch_section, have_global_bss_p): Declare.
        * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
        * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
        Override.
        * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
        * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
        Override.

2006-03-02  Daniel Berlin <dberlin@dberlin.org>

        * tree-vrp.c (execute_vrp): Return value.
        * regrename.c (rest_of_handle_regrename): Ditto.
        * tree-into-ssa.c (rewrite_into_ssa): Ditto.
        * tree-complex.c (tree_lower_complex): Ditto.
        (tree_lower_complex_O0): Ditto.
        * tracer.c (rest_of_handle_tracer): Ditto.
        * postreload-gcse.c (rest_of_handle_gcse2): Ditto.
        * postreload.c (rest_of_handle_postreload): Ditto.
        * tree-tailcall.c (execute_tail_recursion): Ditto.
        (execute_tail_calls): Ditto.
        * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
        * tree.h (init_function_for_compilation): Ditto.
        * ipa-cp.c (ipcp_driver): Ditto.
        * tree-scalar-evolution.c (scev_const_prop): Ditto.
        * tree-scalar-evolution.h (scev_const_prop): Ditto.
        * final.c (compute_alignments): Ditto.
        (rest_of_handle_final): Ditto.
        (rest_of_handle_shorten_branches): Ditto.
        (rest_of_clean_state): Ditto.
        * omp-low.c (execute_expand_omp): Ditto.
        (execute_lower_omp): Ditto.
        * tree-ssa-dse.c (tree_ssa_dse): Ditto.
        * ipa-reference.c (static_execute): Ditto.
        * tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
        * reorg.c (rest_of_handle_delay_slots): Ditto.
        (rest_of_handle_machine_reorg): Ditto.
        * cgraphunit.c (rebuild_cgraph_edges): Ditto.
        * flow.c (recompute_reg_usage): Ditto.
        (rest_of_handle_remove_death_notes): Ditto.
        (rest_of_handle_life): Ditto.
        (rest_of_handle_flow2): Ditto.
        * tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
        * tree-ssa-ccp.c (do_ssa_ccp): Ditto.
        (do_ssa_store_ccp): Ditto.
        (execute_fold_all_builtins): Ditto.
        * mode-switching.c (rest_of_handle_mode_switching): Ditto.
        * modulo-sched.c (rest_of_handle_sms): Ditto.
        * ipa-pure-const.c (static_execute): Ditto.
        * cse.c (rest_of_handle_cse): Ditto.
        (rest_of_handle_cse2): Ditto.
        * web.c (rest_of_handle_web): Ditto.
        * tree-stdarg.c (execute_optimize_stdarg): Ditto.
        * tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
        * tree-nrv.c (tree_nrv): Ditto.
        (execute_return_slot_opt): Ditto.
        * tree-ssa-alias.c (compute_may_aliases): Ditto.
        (create_structure_vars): Ditto.
        * loop-init.c (rtl_loop_init): Ditto.
        (rtl_loop_done): Ditto.
        (rtl_move_loop_invariants): Ditto.
        (rtl_unswitch): Ditto.
        (rtl_unroll_and_peel_loops): Ditto.
        (rtl_doloop): Ditto.
        * gimple-low.c (lower_function_body): Ditto.
        (mark_used_blocks): Ditto.
        * tree-ssa-sink.c (execute_sink_code): Ditto.
        * ipa-inline.c (cgraph_decide_inlining): Ditto.
        (cgraph_early_inlining): Ditto.
        * global.c (rest_of_handle_global_alloc): Ditto.
        * jump.c (cleanup_barriers): Ditto.
        (purge_line_number_notes): Ditto.
        * ifcvt.c (rest_of_handle_if_conversion): Ditto.
        (rest_of_handle_if_after_reload): Ditto.
        * tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
        (tree_ssa_loop_im): Ditto.
        (tree_ssa_loop_unswitch): Ditto.
        (tree_vectorize): Ditto.
        (tree_linear_transform): Ditto.
        (tree_ssa_loop_ivcanon): Ditto.
        (tree_ssa_empty_loop): Ditto.
        (tree_ssa_loop_bounds): Ditto.
        (tree_complete_unroll): Ditto.
        (tree_ssa_loop_prefetch): Ditto.
        (tree_ssa_loop_ivopts): Ditto.
        (tree_ssa_loop_done): Ditto.
        * predict.c (tree_estimate_probability): Ditto.
        * recog.c (split_all_insns_noflow): Ditto.
        (rest_of_handle_peephole2): Ditto.
        (rest_of_handle_split_all_insns): Ditto.
        * tree-eh.c (lower_eh_constructs): Ditto.
        * regmove.c (rest_of_handle_regmove): Ditto.
        (rest_of_handle_stack_adjustments): Ditto.
        * local-alloc.c (rest_of_handle_local_alloc): Ditto.
        * function.c (instantiate_virtual_regs): Ditto.
        (init_function_for_compilation): Ditto.
        (rest_of_handle_check_leaf_regs): Ditto.
        * gcse.c (rest_of_handle_jump_bypass): Ditto.
        (rest_of_handle_gcse): Ditto.
        * ipa-type-escape.c (type_escape_execute): Ditto.
        * alias.c (rest_of_handle_cfg): Ditto.
        * tree-if-conv.c (main_tree_if_conversion): Ditto.
        * profile.c (rest_of_handle_branch_prob): Ditto.
        * tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
        * rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
        * bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
        * tree-dfa.c (find_referenced_vars): Ditto.
        * except.c (set_nothrow_function_flags): Ditto.
        (convert_to_eh_region_ranges): Ditto.
        (rest_of_handle_eh): Ditto.
        * emit-rtl.c (unshare_all_rtl): Ditto.
        (remove_unnecessary_notes): Ditto.
        * except.h (set_nothrow_function_flags): Ditto.
        (convert_to_eh_region_ranges): Ditto.
        * cfgexpand.c (tree_expand_cfg): Ditto.
        * tree-cfgcleanup.c (merge_phi_nodes): Ditto.
        * tree-ssa-pre.c (do_pre): Ditto.
        (execute_fre): Ditto.
        * cfgcleanup.c (rest_of_handle_jump): Ditto.
        (rest_of_handle_jump2): Ditto.
        * tree-sra.c (tree_sra): Ditto.
        * tree-mudflap.c (execute_mudflap_function_ops): Ditto.
        (execute_mudflap_function_decls): Ditto.
        * tree-ssa-copy.c (do_copy_prop): Ditto.
        (do_store_copy_prop): Ditto.
        * ipa-prop.h (ipcp_driver): Ditto.
        * cfglayout.c (insn_locators_initialize): Ditto.
        * tree-ssa-forwprop.c
        (tree_ssa_forward_propagate_single_use_vars): Ditto.
        * cfglayout.h (insn_locators_initialize): Ditto.
        * tree-ssa-dce.c (tree_ssa_dce): Ditto.
        * tree-ssa.c (execute_early_warn_uninitialized): Ditto.
        (execute_late_warn_uninitialized): Ditto.
        * rtl.h (cleanup_barriers): Ditto.
        (split_all_insns_noflow): Ditto.
        (purge_line_number_notes): Ditto.
        (unshare_all_rtl): Ditto.
        (remove_unnecessary_notes): Ditto.
        (recompute_reg_usage): Ditto.
        (variable_tracking_main): Ditto.
        * integrate.c (emit_initial_value_sets): Ditto.
        * integrate.h (emit_initial_value_sets): Ditto.
        * tree-optimize.c (execute_free_datastructures): Ditto
        (execute_free_cfg_annotations): Ditto.
        (execute_fixup_cfg): Ditto.
        (execute_cleanup_cfg_pre_ipa): Ditto.
        (execute_cleanup_cfg_post_optimizing): Ditto.
        (execute_init_datastructures): Ditto.
        * tree-object-size.c (compute_object_sizes): Ditto.
        * combine.c (rest_of_handle_combine): Ditto.
        * tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
        * bb-reorder.c (duplicate_computed_gotos): Ditto.
        (rest_of_handle_reorder_blocks): Ditto.
        (rest_of_handle_partition_blocks): Ditto.
        * var-tracking.c (variable_tracking_main): Ditto.
        * tree-profile.c (tree_profiling): Ditto.
        * tree-vect-generic.c (expand_vector_operations): Ditto.
        * reg-stack.c (rest_of_handle_stack_regs): Ditto.
        * sched-rgn.c (rest_of_handle_sched): Ditto.
        (rest_of_handle_sched2): Ditto.
        * basic-block.h (free_bb_insn): Ditto.
        * tree-ssa-structalias.c (ipa_pta_execute): Ditto.
        * tree-cfg.c (execute_build_cfg): Ditto.
        (remove_useless_stmts): Ditto.
        (split_critical_edges): Ditto.
        (execute_warn_function_return): Ditto.
        (execute_warn_function_noreturn): Ditto.
        * tree-ssa-reassoc.c (execute_reassoc): Ditto.
        * cfgrtl.c (free_bb_for_insn): Ditto.
        * passes.c (execute_one_pass): Run additional
        todos returned by execute function.
        * tree-pass.h (struct tree_opt_pass): Make execute
        return a value.

2006-03-02  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (find_used_portions): Consider taking
        the address as making the variable not write-only.

2006-03-02  Nick Clifton  <nickc@redhat.com>

        * config.gcc (default_use_cxa_atexit): Extend the description of
        this configure variable.  Set its default value to "yes" for
        Linux, NetBSD and ELF targets on the assumption that they will
        use C libraries with the __cxa_atexit function.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
        parameter as unused to suppress a build warning.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

        * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
        config/dfp-bit.c.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

        PR other/26489
        * gthr-posix.h (__gthrw2): Define to take three parameters, the
        declared name, the weak reference name, and the typeof name.
        (__gthrw): Avoid expanding the declared name suffix.
        (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.

2006-03-01  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
        from DWARF 3.
        (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
        DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
        DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
        DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
        DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
        (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
        (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
        DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
        (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
        DW_DS_leading_separate, DW_DS_trailing_separate): New.
        (DW_END_default, DW_END_big, DW_END_little): New.
        (DW_END_lo_user, DW_END_hi_user): Define.
        (DW_LNE_lo_user, DW_LNE_hi_user): Define.
        (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
        (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
        DW_LANG_D): New.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

        * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
        Update all users.
        * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
        Update all users.
        (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
        Update all users.
        * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
        Update all users.
        * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
        to 'symbol_mem_tag'.
        Update all users.
        * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
        rename.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (fold_builtin_copysign): Delete unreachable code.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/25761
        * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
        MACHO_DYNAMIC_NO_PIC_P.
        (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR target/26389
        * config/darwin-protos.h (darwin_asm_output_anchor):
        Declare.
        * config/darwin-sections.def (cstring_section):
        Add SECTION_MERGE to the flags.
        (literal4_section): Likewise.
        (literal8_section): Likewise.
        (objc_selector_refs_section): Likewise.
        (objc_cls_refs_section): Likewise.
        * config/darwin.c (darwin_asm_output_anchor): New
        function.
        * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.

2006-03-01  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/26443
        * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
        to todo and PROP_tmt_usage to properties_destroyed.
        * tree-ssa-ccp.c (pass_ccp): Ditto.
        (pass_store_ccp): Ditto.
        * tree-ssa-dom.c (pass_dominator): Ditto.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-operands.c: Cleanup whitespace.
        (get_asm_expr_operands): Move before first invocation.
        (get_indirect_ref_operands): Likewise.
        (get_tmr_operands): Likewise.
        (get_call_expr_operands): Likewise.
        (append_def): Likewise.
        (append_use): Likewise.
        (append_v_may_def): Likewise.
        (append_v_must_def): Likewise.
        (add_call_clobber_ops): Likewise.
        (add_call_read_ops): Likewise.
        (add_stmt_operand): Likewise.
        (add_virtual_operand): Likewise.
        (build_ssa_operands): Likewise.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/26022
        Revert:
        PR middle-end/24437
        * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
        with a call expr to ...
        * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

        * tree-vrp.c (extract_range_from_assert): Remove special
        handling for types with super-types.

2006-03-01  Ben Elliston  <bje@au.ibm.com>

        * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
        and powerpc64-*-linux* configurations.
        * config/t-dfprules: New file.

        * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
        Compile dfp-bit.c from the source directory using -DWIDTH and
        $DFP_CFLAGS to control the compilation of that file, rather than
        generating width-specific versions in the build directory.
        * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
        (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].

2006-02-28  Zack Weinberg  <zackw@panix.com>

        * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
        continues to work.

2006-02-28  Eric Christopher  <echristo@apple.com>

        * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
        Set up IN_LIBGCC definition of TARGET_64BIT.
        * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.

2006-02-28  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/14752
        * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
        BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
        cases via the construction of "expr != 0".

2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>

        * alias.c (alias_invariant, alias_invariant_size): Remove.
        (record_base_value): Remove.
        (memrefs_conflict_p): Don't look at alias_invariant.
        (end_alias_analysis): Don't free it.
        * alias.h (record_base_value): Remove prototype.

2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
            Adam Nemet  <anemet@caviumnetworks.com>

        * rtl.h (truncated_to_mode): Declare it.
        (struct rtl_hooks): Add reg_truncated_to_mode hook.
        * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
        (RTL_HOOKS_INITIALIZER): Include it.
        * rtlhooks.c (reg_truncated_to_mode_general): New function.
        * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
        reg_truncated_to_mode.
        * rtlanal.c (truncated_to_mode): Define it.
        * simplify-rtx.c (simplify_unary_operation_1): Use it.

2006-02-28  Jeff Law  <law@redhat.com>

        * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
        conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
        the range allowed by TYPE_PRECISION.

        * tree.h (strct phi_arg_d): Remove unused NONZERO field.

2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26419
        * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
        values of n.

2006-02-27  Zack Weinberg  <zackw@panix.com>

        * doc/md.texi: Fix typo in previous change.

2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df.c: Remove.

2006-02-27  Zack Weinberg  <zackw@panix.com>

        * rtl.def (define_constraint, define_register_constraint)
        (define_memory_constraint, define_address_constraint): New MD forms.
        * gensupport.c (process_rtx): Put define_constraint etc on the
        predicate queue.
        * genpreds.c (process_define_predicate): Adjust comment.  Validate
        the name, and call validate_exp to validate the expression.
        (mark_mode_tests, write_extract_subexp): Can assume correct input.
        (write_predicate_expr): Likewise.  NAME argument no longer necessary;
        all callers changed.
        (validate_exp, needs_variable, struct constraint_data)
        (constraints_by_letter_table, first_constraint, last_constraint_ptr)
        (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
        (const_dbl_constraints, constraint_max_namelen)
        (have_register_constraints, have_memory_constraints)
        (have_address_constraints, have_address_constraints)
        (have_extra_constraints, have_const_int_constraints)
        (have_const_dbl_constraints, mangle, add_constraint)
        (process_define_constraint, process_define_register_constraint)
        (write_enum_constraint_num, write_lookup_constraint)
        (write_insn_constraint_len, write_regclass_for_constraint)
        (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
        (write_insn_extra_memory_constraint)
        (write_insn_extra_address_constraint)
        (write_satisfies_constraint_fns): New.
        (write_tm_preds_h): If we have new-style constraint definitions,
        prototype the functions generated from them, and define the
        old constraint interface (still used by generic code) in terms of
        those functions.
        (write_insn_preds_c): If we have new-style constraint definitions,
        generate all relevant functions from those definitions.
        (main): Handle define_constraint etc.
        * genoutput.c (struct constraint_data, indep_constraints)
        (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
        (mdep_constraint_len): New data structures and functions, defined
        #ifdef USE_MD_CONSTRAINTS.
        (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
        (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
        use new logic to validate operand constraints against constraint
        definitions.
        (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
        defined.
        * defaults.h: If none of the old-style constraint macros are
        defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
        old-style macros; and poison REG_CLASS_FROM_LETTER,
        CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
        EXTRA_CONSTRAINT.
        * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
        * doc/md.texi: Document new constraint-definition mechanism and the
        C interface it provides.  Remove references to old mechanism
        elsewhere in the document.
        (Machine Constraints): Use pathnames relative to gcc directory,
        i.e. config/ARCH/FILE.  Change i386 section to refer to
        config/i386/predicates.md; update that section to match docstrings.
        * doc/tm.texi: Move all documentation of the old constraint-
        definition macros to their own section, clearly mark as obsolete.

        * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
        (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
        definitions.
        * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
        (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
        * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
        constraint strings.
        (splits and peepholes): Use satisfies_constraint_*.
        * config/i386/i386.c (memory_address_length)
        (ix86_attr_length_immediate_default): Use satisfies_constraint_*.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

        * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
        scalar operation to be put back into the loop.

2006-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR other/26208
        * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
        (extract_cie_info): Handle S flag in augmentation string.
        (execute_cfa_program): If context->signal_frame, execute also
        fs->pc == context->ra instructions.
        (uw_frame_state_for): If context->signal_frame, don't subtract one
        from context->ra to find FDE.
        (uw_update_context_1): Set context->signal_frame to
        fs->signal_frame.
        (_Unwind_GetIPInfo): New function.
        * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
        * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
        of _Unwind_GetIP.
        * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
        * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
        * unwind-compat.c (_Unwind_GetIPInfo): New function.
        * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
        * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
        * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
        * config/i386/linux-unwind.h (x86_fallback_frame_state,
        x86_64_fallback_frame_state): Set fs->signal_frame.
        * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
        (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
        (frob_update_context): Likewise.  Workaround missing S flag in
        Linux 2.6.12 - 2.6.16 kernel vDSOs.
        * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
        Remove the psw_addr + 1 hack.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (get_constraint_for): Move code to deal
        with aggregates here.
        (find_func_aliases): Remove code for &<aggregate> from here.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <EQ_EXPR>: Fold (~X & C) eq/ne 0 as
        (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
        Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
        as (X & C) ne/eq 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/19983
        * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.

2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>

        * opts.c (decode_options): Do not handle flag_strength_reduce.
        (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
        and OPT_fstrength_reduce.
        * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
        flag_prefetch_loop_arrays for being nonzero.
        * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
        no-ops.
        (fprefetch-loop-arrays-rtl): Removed.
        (flag_prefetch_loop_arrays): Do not specify the value.

        * doc/passes.texi: Update documentation of loop optimizer
        passes.
        * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
        -frerun-loop-opt): Remove.

2006-02-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26421
        * tree-ssa-alias.c (find_used_portions): Don't treat parameters
        in function calls that are ADDR_EXPRs as using the whole structure.

2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>

        * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
        * tree-pass.h (pass_loop_optimize): Remove.
        * passes.c (pass_loop_optimize): Never run it.
        * toplev.c (backend_init): Don't call init_loop.
        * opts.c (flag_loop_optimize_set): Remove.
        (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
        (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
        the old RTL loop optimizer when profiling enabled.
        * predict.c (tree_estimate_probability): Always strip builtin_expect.
        * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
        pre-headers for the sake of the old RTL loop optimizer.
        * Makefile.in: Remove all references to loop.o.

        * doc/invoke.texi: Remove all references to -floop-optimize
        and -frerun-loop-opt.

2006-02-26  Zack Weinberg  <zackw@panix.com>

        * doc/md.texi (Machine Constraints): Refer to all files with paths
        relative to gcc directory (i.e. config/CPU/file).  Add missing
        @table @code ... @end table to M32C subsection.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
        (X & 1) == 0.
        <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>
            James A. Morrison  <phython@gcc.gnu.org>

        PR middle-end/21137
        * fold-const.c (fold_binary) <EQ_EXPR>: Fold ((X>>C1)&C2) eq/ne 0,
        when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
        new constant C2<<C1, or as (X<0) or (X,false) depending upon the
        signedness of the shift operation.

2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26359
        * tree-ssa-alias.c (new_type_alias): Set fields for new tag.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1): Simplify
        (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
        as X == 0, and some symmetry related transformations.
        Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/23673
        * fold-const.c (fold_binary) <EQ_EXPR>: Fold (X^Y) == 0 as X == Y
        and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
        symmetry related transformations.  Fold (X^C1) == C2 as
        X == (C1^C2).

2006-02-25  Juergen Weigert  <jw@suse.de>
        Richard Guenther  <rguenther@suse.de>

        * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.

2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (gen_lowpart_or_truncate): Call
        simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

2006-02-24  Diego Novillo  <dnovillo@redhat.com>

        * doc/invoke.texi: Move -fopenmp description to "Options for
        Code Generation".
        Remove reference to -lgomp.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi: Require GNU tar version 1.14.

2006-02-24  Geoffrey Keating  <geoffk@apple.com>

        * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
        * doc/invoke.texi (C++ Dialect Options): Document
        -fno-use-cxa-get-exception-ptr.
        * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
        * configure: Regenerate.
        * c.opt (fuse-cxa-get-exception-ptr): New.
        * c-opts.c (c_common_handle_option): Handle
        OPT_fuse_cxa_get_exception_ptr.
        * c-common.c (flag_use_cxa_atexit): Update documentation.
        (flag_use_cxa_get_exception_ptr): New.
        * c-common.h (flag_use_cxa_get_exception_ptr): New.
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
        documentation.
        (C_COMMON_OVERRIDE_OPTIONS): New.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/24952
        * combine.c (try_combine): Explicitly check whether GET_CODE is
        a SET or a CLOBBER, instead on checking that it isn't a USE.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_comparison): New subroutine of fold_binary
        containing transformations common to both the equality and
        ordering relational operators, factored out of fold_binary.
        (fold_binary): Separate out the equality operators (EQ_EXPR
        and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
        LE_EXPR and GE_EXPR), calling fold_comparison to perform the
        transformations common to both.
        (fold_div_compare): Fix latent bugs in the previously unreachable
        LT_EXPR and GE_EXPR cases.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_init_builtins): Change
        decl libname for clog to __clog on AIX.

        * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.

2006-02-24  Alan Modra  <amodra@bigpond.net.au>

        PR target/26453
        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
        output traceback table for thunks.  Localise rs6000_stack_info call.

2006-02-23  Roger Sayle  <roger@eyesopen.com>
            Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * gthr-posix.h (__gthrw): Fix typo in comment.

2006-02-23  Geoffrey Keating  <geoffk@apple.com>

        * doc/cpp.texi (Character sets): Document that we do support
        input files to be in any character set.

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>

        * 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>

        * 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 (initializer_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>

        * 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.
        * i386.md (cpu attribute): Add generic32/generic64
        (movhi splitter): Behave sanely when both partial_reg_dependency and
        partial_reg_stall are set.
        (K8 splitters): Enable for generic as well.
        * predicates.md (incdec_operand): Use TARGET_INCDEC
        (aligned_operand): Avoid memory mismatch stalls.
        * athlon.md: Enable for generic64, new patterns for 128bit moves.
        * ppro.md: Enable for generic32
        * i386.c (generic64_cost, generic32_cost): New.
        (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
        (x86_use_leave): Enable for generic64.  (x86_use_sahf,
        x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
        x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
        x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
        x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_prologue_using_move,
        x86_epilogue_using_move, x86_arch_always_fancy_math_387,
        x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
        Enable for generic.
        (x86_use_incdec, x86_pad_returns): New.
        (override_options): Add generic32 and generic64, translate "generic"
        to generic32/generic64 and "i686" to "generic32", refuse
        "generic32"/"generic64" as arch target.
        (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
        (ix86_reorg): Honor PAD_RETURNS.

2006-01-19  Diego Novillo  <dnovillo@redhat.com>

        * tree-pretty-print.c (dump_generic_node): Handle
        OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
        * cgraph.c (cgraph_expand_queue): Rename from
        cgraph_analyze_queue.  Update all users.
        * cgraphunit.c (cgraph_assemble_pending_functions): Process
        cgraph_expand_queue.
        (cgraph_expand_all_functions): Likewise.
        (cgraph_finalize_pending_functions): Remove.  Update callers.

        * tree.h (OMP_DIRECTIVE_P): Define.
        (OMP_PARALLEL_FN): Define.
        (OMP_PARALLEL_DATA_ARG): Define.
        (OMP_SECTIONS_SECTIONS): Define.
        * tree-pass.h (pass_expand_omp): Declare.
        * omp-low.c (struct omp_region): Declare.
        (struct omp_context): Remove fields 'parallel_type',
        'parallel_start_ix' and 'parallel_start_additional_args'.
        Update all users.
        (struct omp_for_data): Rename from struct expand_omp_for_data.
        (omp_regions): New static variable.
        (root_omp_region): New static variable.
        (find_omp_clause): Make static.
        (is_in_combined_parallel_ctx): Remove.
        (is_combined_parallel): New.
        (extract_omp_for_data): Move earlier in the file.
        (workshare_safe_to_combine_p): New.
        (get_ws_args_for): New.
        (determine_parallel_type): Move earlier in the file.
        (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
        child function.
        (omp_copy_decl): Likewise.
        (create_omp_child_function): Likewise.
        (lookup_omp_region): New.
        (dump_omp_region): New.
        (debug_omp_region): New.
        (debug_all_omp_regions): New.
        (new_omp_region): New.
        (scan_omp_parallel): If parallel_nesting_level > 1, the
        directive is nested within another parallel directive.
        Set OMP_PARALLEL_FN.
        (scan_omp_for): Do not try to handle combined parallel+for
        cases.
        Remove FIXME comment.
        (scan_omp_nested): Remove.
        (scan_omp_1): Do not call scan_omp_nested when
        parallel_nesting_level is > 1.
        Do not change the DECL_CONTEXT of local variables found.
        (lookup_decl_in_outer_ctx): New.
        (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
        (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
        (lower_reduction_clauses): Rename from expand_reduction_clauses.
        (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignment.
        (lower_send_clauses): Rename from expand_send_clauses.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignments.
        (lower_send_shared_vars): Rename from expand_send_shared_vars.
        If CTX is nested, lookup VAR in the outer context when
        building copy assignments.
        (expand_parallel_call): Rename from build_parallel_call.
        Handle combined parallel+workshare cases.
        Re-implement to emit code into the CFG.
        (list2chain): New.
        (expand_omp_parallel): Re-implement to emit code into the CFG.
        Call move_sese_region_to_fn to outline the sub-graph
        containing the parallel region.
        (expand_omp_for_1): Remove.
        (expand_omp_for_generic): Re-implement to emit code into the
        CFG.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_for_static_chunk): Likewise.
        (expand_omp_for): Likewise.
        (expand_omp_sections): Likewise.
        (remove_exit_barriers): New.
        (expand_omp_synch): New.
        (expand_omp): New.
        (build_omp_regions_1): New.
        (build_omp_regions): New.
        (execute_expand_omp): New.
        (gate_expand_omp): New.
        (pass_expand_omp): Define.
        (lower_omp_sections): Rename from expand_omp_sections.
        Set OMP_SECTIONS_SECTIONS.
        (lower_omp_single_simple): Rename from expand_omp_single_simple.
        (lower_omp_single_copy): Rename from expand_omp_single_copy.
        (lower_omp_single): Rename from expand_omp_simple.
        (lower_omp_master): Rename from expand_omp_master.
        (lower_omp_ordered): Rename from expand_omp_ordered.
        (lower_omp_critical): Rename from expand_omp_critical.
        (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
        (lower_omp_for): Re-implement.
        (lower_omp_parallel): Re-implement.
        (lower_regimplify): Rename from expand_regimplify.
        (lower_omp_1): Rename from expand_omp_1.
        If there are syntax errors in the program, replace every
        OpenMP directive with NOP.
        Call lower_omp_* instead of expand_omp_*.
        (lower_omp): Rename from expand_omp.

        * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
        * tree-gimple.h (enum omp_parallel_type): Remove.
        (gimple_boolify): Declare extern.
        (find_omp_clause, determine_parallel_type): Remove.

        * gimple-low.c (lower_omp_directive): New.
        (lower_stmt): Call it.
        (record_vars_into): Move from ...
        (record_vars): ... here.
        Call record_vars_into with current_function_decl.

        * gimplify.c (struct gimplify_ctx): Remove fields
        combined_pre_p and combined_ctxp.  Update users.
        (get_formal_tmp_var): Add documentation.
        (gimple_boolify): Make extern.
        (gimplify_expr_in_ctx): Remove.  Update callers.
        (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
        will always be a BIND_EXPR.
        (gimplify_expr): Handle OMP_RETURN_EXPR.
        * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
        (OMP_PARALLEL): Add 3 operands.
        (OMP_SECTIONS): Add 1 operand.
        (OMP_RETURN_EXPR): Define.

        * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
        (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
        * tree-iterator.c (alloc_stmt_list): Assert that we are not
        creating a circular free list.
        (free_stmt_list): Assert that we are not freeing stmt_list_cache.

        * tree-flow.h (move_sese_region_to_fn): Declare.
        (record_vars_into): Declare.
        * tree-cfg.c (make_omp_sections_edges): New.
        (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
        OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
        OMP_SECTIONS and OMP_SECTION.
        (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
        (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
        (verify_stmt): Do not handle OMP_DIRECTIVE_P.
        (gather_blocks_in_sese_region): New.
        (struct move_stmt_d): Declare.
        (move_stmt_r): New.
        (move_block_to_fn): New.
        (move_sese_region_to_fn): New.

        * passes.c (init_optimization_passes): Schedule
        pass_expand_omp after pass_init_datastructures.

        * tree-ssa-operands.c (get_expr_operands): Handle
        OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
        OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.

2006-01-19  Jeff Law  <law@redhat.com>

        * tree-vrp.c (extract_range_from_assert): Refine the result range
        if the variable referenced by the ASSERT_EXPR has a range and
        either the tentative result range or the previous range is a
        VR_ANTI_RANGE.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

        * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.

2006-01-19  Jan Hubicka  <jh@suse.cz>

        * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.

2006-01-19  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
        (expand_compound_operation, expand_field_assignment): Fail if the
        bit lengths of an extract operation are out of range.
        (make_extraction): Compute wanted_inner_mode based on the position
        and length of the extraction.  Make it extraction_mode for non-constant
        positions, and do not modify offset in that case.  When generating a
        new MEM, use a mode that can hold the extraction while keeping correct
        alignment.  Remove code that supported MEMs wrapped by USEs.
        (simplify_shift_const_1, force_to_mode) <case USE>: Remove.

2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("Y", "y"): New mode attribute.
        ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
        "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
        "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
        "*addsi3_imm_cc", "*addsi3_carry1_cc",
        "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
        "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
        "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
        "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
        "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
        "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
        "addsi3", "subsi3"): Insn patterns removed.
        ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
        "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
        "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
        "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
        "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
        "*sub<mode>3_cconly2"): New insn patterns.
        ("addsi3", "subsi3"): New expanders.

2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>

        * Makefile.in (tree-vect-patterns.o): Add rule for new file.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
        existing STMT_VINFO_VECTYPE if available.
        (vect_mark_relevant): Add special handling for stmts that are
        marked as STMT_VINFO_IN_PATTERN_P.
        (vect_analyze_loop): Call vect_pattern_recog.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
        * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
        stmt_info.
        (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
        (vect_recog_func_ptr): New function-pointer type.
        * tree-vect-patterns.c: New file.
        (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
        (vect_recog_dot_prod_pattern, vect_pattern_recog):
        (vect_pattern_recog_1): New functions.
        (vect_pattern_recog_funcs): New array of function pointers.

        * tree-vectorizer.h (ternary_op): New enum value.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
        declaration. Revised documentation. Removed redundant dump prints.
        Removed redundant argument. Added support for reduction patterns.
        (vectorizable_reduction): Added support for reduction patterns.
        (vect_transform_stmt): Added support for patterns.

        * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
        * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
        * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
        (expand_widen_pattern_expr): New function.
        (init_optabs): Initialize new optabs udot_prod_optab,
        sdot_prod_optab.
        * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
        (sdot_prod_optab, udot_prod_optab): Define new optabs.
        (expand_widen_pattern_expr): New function declaration.
        * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
        tree-codes.
        * tree-inline.c (estimate_num_insns_1): Added cases for new
        tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        (op_prio): Likewise.
        (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
        * tree-ssa-operands.c (get_expr_operands): Added case for
        DOT_PROD_EXPR.
        * tree-vect-patterns.c (widened_name_p): New function.
        (vect_recog_dot_prod_pattern): Added function implementation.
        * tree-vect-transform.c (get_initial_def_for_reduction): Added
        cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
        * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
        * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.

        * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
        * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
        * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
        (init_optabs): Initialize new optabs widen_ssum_optab,
        widen_usum_optab.
        * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
        (widen_ssum_optab, widen_usum_optab): Define new optabs.
        * tree-vect-generic.c: (expand_vector_operations_1): Check type of
        use instead of type of def.
        * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
        function implementation.
        * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
        widen_ssumv8hi): New.

        * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
        patterns.

2006-01-19  Richard Sandiford  <richard@codesourcery.com>

        PR c/25805
        * c-decl.c (add_flexible_array_elts_to_size): New function.
        (finish_decl): Use it.

2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>

        * diagnostic.h: Include options.h.
        * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
        dependancies for diagnostic.h.
        * Makefile.in (DIAGNOSTIC_H): Add options.h.

2006-01-16  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
        (ssa_ro_call_cache_valid): Ditto.
        * tree-ssa-alias.c (sort_tags_by_id): New function.
        (init_transitive_clobber_worklist): Ditto.
        (add_to_worklist): Ditto.
        (mark_aliases_call_clobbered): Ditto.
        (compute_tag_properties): Ditto.
        (set_initial_properties): Ditto.
        (compute_call_clobbered): Ditto.
        (compute_may_aliases):  Call compute_call_clobbered and grouping.
        (compute_flow_sensitive_aliasing): Remove clobbering related code.
        (compute_flow_insensitive_aliasing): Grouping now happens in our
        caller.
        (setup_pointers_and_addressables): Remove clobbering related code.
        (add_may_alias): Ditto.
        (replace_may_alias): Ditto.
        (get_nmt_for): Ditto.
        (create_global_var):
        (is_escape_site): Return an escape_type enumeration.
        * tree-flow-inline.h (is_call_clobbered): Global var does not
        imply call clobbered.
        (mark_call_clobbered): Take a reason for marking this. Remove
        marking of globalness, and cache invalidation.
        (clear_call_clobbered): Remove cache invalidation code.
        * tree-dfa.c (dump_variable): If details is on, dump the reason
        for escaping.
        * tree-outof-ssa.c (create_temp): Copy escape mask from original
        variable.
        * tree-flow.h (struct ptr_info_def): Add escape mask member.
        (struct var_ann_d): Ditto.
        (enum escape_type): New.
        (mark_call_clobbered): Adjust prototype.
        * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
        are never call clobbered.
        Record reasons for escaping.
        * tree-ssa-structalias.h (is_escape_site): Update prototype.
        * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
        (ssa_ro_call_cache_valid): Ditto.
        (clobbered_v_may_defs): Ditto.
        (clobbered_vuses): Ditto.
        (ro_call_vuses): Ditto.
        (clobber_stats): New.
        (init_ssa_operands): Zero out clobber stats.
        (fini_ssa_operands): Print out clobber stats.
        (get_call_expr_operands): Pass callee fndecl to
        add_call_read_ops).
        (add_call_clobber_ops): Remove use of cache.
        Add use of PURE_CONST information.
        (add_call_read_ops): Remove use of cache.
        Add use of static not_read information.

2006-01-18  Alexandre Oliva  <aoliva@redhat.com>

        Introduce TLS descriptors for i386 and x86_64.
        * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
        (TARGET_ANY_GNU_TLS): New macro.
        (enum tls_dialect): Added TLS_DIALECT_GNU2.
        (struct machine_function): Add tls_descriptor_call_expanded_p.
        (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
        (ix86_current_function_calls_tls_descriptor): Likewise.
        * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
        (override_options): Introduce gnu2 tls dialect.
        (ix86_frame_pointer_required): Functions containing TLSCALLs are
        not leaves.
        (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
        Likewise.
        (legitimize_tls_address): Adjust logic for GNU2 TLS.
        (ix86_init_machine_status): Initialize new field.
        (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
        (ix86_tls_module_base): New.
        * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
        * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
        (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
        (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
        (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
        (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
        (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
        (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
        * config/i386/predicates.md (tls_modbase_operand): New.
        (tp_or_register_operand): New.

2006-01-18  Daniel Berlin  <dberlin@dberlin.org>

        * ipa-reference.c (check_operand): Allow FUNCTION_DECL.
        (look_for_address_of): Ditto.
        (ipa_init): Walk the function decls.
        (static_execute): Don't set readonly on FUNCTION_DECL's.

2006-01-18  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
        for shifts where the source and destination registers are different.

2006-01-18  Paul Brook  <paul@codesourcery.com>

        Merge from csl-arm-branch.
        2005-03-14  Julian Brown  <julian@codesourcery.com>
        * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
        (aeabi_llsl): Likewise.
        (ashrdi3): Likewise.
        (aeabi_lasr): Likewise.
        (lshrdi3): Likewise.
        (aeabi_llsr): Likewise.
        2005-03-10  Julian Brown  <julian@codesourcery.com>
        * config.gcc: Disable shared libgcc for SymbianOS.
        * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.

2006-01-18  DJ Delorie  <dj@redhat.com>

        * c-pragma.c (handle_pragma_diagnostic): New.
        (init_pragma): Register it.
        * doc/extend.texi: Document it.

        * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
        * diagnostic.h (diagnostic_classify_diagnostic): Declare.
        (diagnostic_context): Add classify_diagnostic[].
        * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
        as errors if they're overridden to DK_WARNING.
        (diagnostic_initialize): Initialize classify_diagnostic[].
        (diagnostic_set_kind_override): New.
        (diagnostic_report_diagnostic): Check for kind changes.
        * opts.c (common_handle_option): Take lang_mask.  Update callers.
        Handle OPT_Werror_.
        * common.opt (Werror=): New.
        * doc/invoke.texi: Document -Werror=*

2006-01-18  Jeff Law  <law@redhat.com>

        * tree-vrp.c (test_for_singularity): Correct test for new
        min limit.  Use operand_equal_p rather than pointer equality
        for testing if new min/max values are equal.

        * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
        using range information until after propagation and folding.

2006-01-18  Richard Henderson  <rth@redhat.com>
            Aldy Hernandez  <aldyh@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * omp-low.c: New file.
        * c-omp.c: New file.

2006-01-18  Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * doc/invoke.texi: Document -fopenmp.
        * tree-dump.h (debug_function): Declare.
        * hooks.c (hook_bool_tree_bool_false): New function.
        (hook_tree_tree_null): Remove.
        (hook_tree_tree_tree_null): New.
        * hooks.h: Update to match.
        * tree-pretty-print.c (debug_tree_chain): New.
        (print_generic_expr): Handle TDF_CHAIN.
        (dump_generic_node): Handle BLOCK.
        Do not abort with incomplete SWITCH_EXPRs.
        Do not dump body of an OpenMP directive if TDF_SLIM is given.
        <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
        print space after directive name.
        <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
        Handle OMP_MASTER and OMP_ORDERED.
        Handle printing of OMP_BODY just in one place, goto
        dump_omp_body in the rest of OMP_* nodes that have
        OMP_BODY.
        Don't handle clause nodes here.  Update omp statements to
        use dump_omp_clauses.
        Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
        OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
        OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
        GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
        GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
        GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
        Adjust output for GOMP_PARALLEL.
        (dump_omp_clauses): New.
        (print_declaration): Dump DECL_VALUE_EXPR.
        (op_symbol_1): Split out of op_symbol.
        (dumping_stmts): Remove.  Update all users.
        * cgraph.c (cgraph_analyze_queue): New.
        (cgraph_add_new_function): New.
        * cgraph.h (cgraph_analyze_queue): Declare.
        (cgraph_add_new_function): Declare.
        (cgraph_lower_function): Remove.
        * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
        nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
        and TYPE_P nodes in its default clause.
        (empty_body_p): New.
        (tree_range_check_failed): New.
        (build5_stat): New.
        * tree.h (OMP_CLAUSE_REDUCTION_INIT,
        OMP_CLAUSE_REDUCTION_MERGE,
        OMP_CLAUSE_REDUCTION_PLACEHOLDER,
        OMP_CLAUSE_PRIVATE_DEBUG,
        OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
        OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
        OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
        OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
        OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
        OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
        OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
        OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
        OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
        OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
        OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
        OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
        OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
        OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
        (TREE_RANGE_CHECK): New.
        (empty_body_p): Declare.
        (enum omp_clause_default_kind): New.
        (build_string_literal): Declare.
        (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
        (build5_stat, build5): Declare.
        * tree-pass.h (TDF_CHAIN): Define.
        * tree-pass.h (PROP_gimple_lomp): Define.
        (pass_lower_omp): Declare.
        * diagnostic.h (debug_tree_chain): Declare.
        * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
        mode_for_size.
        (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
        * builtins.c (build_string_literal): Make extern.
        * gcc.c (include_spec_function): New.
        (static_spec_functions): Add it.
        (main): Move load of libgomp.spec ...
        (LINK_COMMAND_SPEC): ... here.
        (link_gomp_spec): New.
        (static_specs): Include it.
        (LINK_COMMAND_SPEC): Add link_gomp.
        (GOMP_SELF_SPECS): New.
        (driver_self_specs): Include it.
        (switch_matches): Don't mark inline.
        (main): Load libgomp.spec.
        * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
        OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
        and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
        * tree-gimple.h (enum omp_parallel): Declare.
        (determine_parallel_type): Declare.
        (omp_firstprivatize_variable): Declare.
        (omp_reduction_init): Declare.
        (diagnose_omp_structured_block_errors): Declare.
        (struct walk_stmt_info): Add want_return_expr.
        (struct walk_stmt_info): Add want_bind_expr, want_locations.
        (find_omp_clause): Declare.
        (insert_field_into_struct): Declare.
        (struct walk_stmt_info): Move from tree-nested.c
        (walk_stmts): Declare.
        * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
        to 200505.
        * cgraphunit.c (cgraph_lower_function): Make static.
        (cgraph_finalize_pending_functions): New.
        (cgraph_finalize_function): Call it.
        (cgraph_finalize_compilation_unit): Likewise.
        * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
        BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
        (BT_FN_UINT_UINT): New.
        (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
        DEF_FUNCTION_TYPE_VAR_4): Document.
        (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
        BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
        BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
        BT_FN_VOID_OMPFN_PTR_UINT_UINT,
        BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
        BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
        BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
        BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
        * builtins.def: Update DEF_BUILTIN comment to include COND argument.
        Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
        into separate files.
        (DEF_GOMP_BUILTIN): New.
        (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
        BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
        BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
        BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
        BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
        BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
        BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
        BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
        BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
        BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
        BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
        BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
        BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
        BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
        BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
        BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
        BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
        BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
        BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
        * sync-builtins.def: New file, moved from builtins.def.
        * omp-builtins.def: New file, moved from builtins.def.
        * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
        * gimple-low.c (lower_function_body): Clear data.
        (lower_stmt): Do not handle COMPOUND_EXPR.
        Remove call to print_node_brief.
        * c-tree.h (c_finish_omp_clauses): New prototype.
        (C_DECL_THREADPRIVATE_P): Define.
        (lookup_name_no_remap, c_omp_remap_private): Remove
        (c_begin_omp_parallel, c_finish_omp_parallel): Update.
        (check_for_loop_decls): Update decl.
        (lookup_name_no_remap, c_omp_remap_private): Declare.
        (build_indirect_ref, build_modify_expr, pushdecl,
        pushdecl_top_level): Move to c-common.h.
        * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
        before the switch, but just in the 2 places that need it.
        * c-decl.c (diagnose_mismatched_decls): Do not check for
        mismatched thread-local attributes when OLDDECL is marked
        threadprivate and NEWDECL has no thread-local attributes.
        (merge_decls): Merge C_DECL_THREADPRIVATE_P.
        (c_gimple_diagnostics_recursively): Rename from
        c_warn_unused_result_recursively.  Invoke
        diagnose_omp_structured_block_errors.
        (check_for_loop_decls): Return a singular decl found.
        * langhooks.c (lhd_omp_predetermined_sharing): Return
        OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
        (lhd_omp_firstprivatize_type_sizes): New.
        (lhd_omp_assignment): New.
        (lhd_omp_predetermined_sharing): New.
        * langhooks.h (struct gimplify_omp_ctx): Forward declare.
        (struct lang_hooks_for_types): Add
        omp_firstprivatize_type_sizes, omp_privatize_by_reference,
        omp_predetermined_sharing, omp_disregard_value_expr,
        omp_private_debug_clause, omp_clause_default_ctor,
        omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
        (c_finish_omp_clauses): New.
        (c_finish_bc_stmt): Diagnose break within omp for.
        (c_begin_omp_parallel, c_finish_omp_parallel): New.
        (build_unary_op): Return error_mark after reporting
        a readonly_error.
        (build_modify_expr): Likewise.
        * gimplify.c: Include optabs.h and pointer-set.h.
        (enum gimplify_omp_var_data): Declare.
        (struct gimplify_omp_ctx): Declare.
        (struct gimplify_ctx): Add fields prev_context, combined_pre_p
        and combined_ctxp.
        (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
        (push_gimplify_context, pop_gimplify_context): Allow nesting.
        (splay_tree_compare_decl_uid): New.
        (new_omp_context): New.
        (delete_omp_context): New.
        (gimple_add_tmp_var): Call omp_add_variable.
        (gimplify_bind_expr): Likewise.
        (gimplify_var_or_parm_decl): If omp_notice_variable returned
        true, disregard DECL_VALUE_EXPR on the decl if any.
        (gimplify_expr_in_ctx): New.
        (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
        omp_add_variable, omp_notice_variable, omp_is_private
        gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
        gimplify_adjust_omp_clauses, gimplify_omp_parallel
        gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
        gimplify_omp_atomic_fetch_op, goa_stabilize_expr
        gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
        gimplify_omp_atomic): New.
        (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
        OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
        OMP_CRITICAL and OMP_ATOMIC.
        (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
        * c-pragma.h (enum pragma_kind): Add
        PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
        PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
        PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
        PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
        PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
        PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
        PRAGMA_OMP_THREADPRIVATE.
        * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
        OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
        OMP_CRITICAL, OMP_ATOMIC, 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): Define.
        * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
        * tree-ssa-dce.c (find_control_dependence): Do not assume that
        ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
        * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
        OpenMP directives.
        (struct nesting_info): Add field_map,
        suppress_expansion, debug_var_chain.
        (create_nesting_tree): Initialize them.
        (lookup_field_for_decl): Use field_map.
        (get_nonlocal_debug_decl, get_local_debug_decl): New.
        (convert_local_omp_clauses): New.
        (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
        (walk_body): Split out of walk_function.
        (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
        (convert_nonlocal_reference): Handle omp statements.
        (convert_local_reference): Likewise.
        (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
        (unnest_nesting_tree): New.
        (lower_nested_functions): Call it.
        (insert_field_into_struct): Make extern.
        (struct walk_stmt_info): Move to tree-gimple.h.
        (walk_stmts): Make extern.
        * omp-builtins.def: New file.
        * tree-iterator.c (expr_only): Clarify comment.
        * c-common.h (pushdecl_top_level, pushdecl,
        build_modify_expr, build_indirect_ref,
        c_finish_omp_master, c_finish_omp_critical,
        c_finish_omp_ordered, c_finish_omp_barrier,
        c_finish_omp_atomic, c_finish_omp_flush,
        c_finish_omp_for, c_split_parallel_clauses,
        omp_clause_default_kind, c_omp_sharing_predetermined,
        c_omp_remap_decl): Declare.
        * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
        (OBJS-common): Add omp-low.o.
        (c-omp.o, omp-low.o): Add.
        (gimplify.o): Add dependency on $(OPTABS_H).
        (GTFILES): Add omp-low.c.
        (gt-stringpool.h): Add.
        * tree-cfg.c (set_bb_for_stmt): Do not update the
        block-to-labels map if we are currently expanding to RTL.
        (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
        checks.
        Handle IDENTIFIER_NODE.
        (tree_verify_flow_info): Do not ICE when emitting error
        messages about invalid labels.
        (dump_function_to_file): Reset CFUN before emitting the body
        of the function.
        (debug_function): New.
        * passes.c (init_optimization_passes): Schedule
        pass_lower_omp.
        * langhooks-def.h (lhd_omp_predetermined_sharing,
        lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
        Declare.
        (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
        (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
        LANG_HOOKS_OMP_PREDETERMINED_SHARING,
        LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
        LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
        LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
        LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
        LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
        LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
        (LANG_HOOK_DECLS): Use them.

2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
            Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * c-parser.c (pragma_omp_clause): Define.
        (c_parser_declaration_or_fndef): Document OpenMP syntax.
        (c_parser_compound_statement): Likewise.
        (c_parser_statement): Likewise.
        (c_parser_pragma): Handle omp pragmas.
        (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
        OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
        (c_parser_omp_clause_name, check_no_duplicate_clause,
        c_parser_omp_variable_list,
        c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
        c_parser_omp_clause_copyprivate,
        c_parser_omp_clause_default,
        c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
        c_parser_omp_clause_lastprivate,
        c_parser_omp_clause_nowait,
        c_parser_omp_clause_num_threads,
        c_parser_omp_clause_ordered, c_parser_omp_clause_private,
        c_parser_omp_clause_reduction,
        c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
        c_parser_omp_all_clauses, c_parser_omp_structured_block,
        c_parser_omp_atomic, c_parser_omp_barrier,
        c_parser_omp_critical, c_parser_omp_flush,
        c_parser_omp_for_loop, c_parser_omp_for,
        c_parser_omp_master, c_parser_omp_ordered,
        c_parser_omp_sections_scope, c_parser_omp_sections,
        c_parser_omp_parallel, c_parser_omp_single,
        c_parser_omp_construct, c_parser_omp_threadprivate): New.
        * c-pragma.c (init_pragma): Do omp pragma registration here.
        * c.opt (fopenmp): New flag.

2006-01-18  Eric Christopher  <echristo@apple.com>

        * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
        * config/darwin.h (GOMP_SELF_SPECS): Define.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * rtl.h: Remove the prototype for reg_alloc.

2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25731
        * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
        hppa[12]*-*-hpux11*): Override default shared libgcc version for both
        sjlj and dwarf2 exception handling.
        * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
        Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
        * pa/pa.c (function_value): Treat complex and vector types as
        aggregates.
        (function_arg): Likewise.  Only pass scalar floats in the floating
        point argument registers.
        * pa/t-slibgcc-dwarf-ver: New file.
        * pa/t-slibgcc-sjlj-ver: New file.
        * pa/t-slibgcc-elf-ver: Delete file.

2006-01-19  Alan Modra  <amodra@bigpond.net.au>

        * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
        unlikely_test_section_p test.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * mode-switching.c (optimize_mode_switching): Make it static.
        * basic-block.h: Remove the prototype for
        optimize_mode_switching.

        * modulo-sched.c (sms_schedule): Make it static.
        * rtl.h: Remove the prototype for sms_schedule.

        * postreload-gcse.c (gcse_after_reload_main): Make it static.
        * rtl.h: Remove the prototype for gcse_after_reload_main.

        * reg-stack.c (reg_to_stack): Make it static.
        * rtl.h: Remove the prototype for reg_to_stack.

        * regrename.c (regrename_optimize, copyprop_hardreg_forward):
        Make them static.
        * rtl.h: Remove the prototypes for regrename_optimize and
        copyprop_hardreg_forward.

2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>

        * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
        alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
        Test against the appropriate null constant for the mode.
        If 'fixup_overlap' is true, swap the operands if they overlap.
        (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
        * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
        alpha_split_tmode_pair and adjust for above change.
        * config/alpha/alpha.md (movtf_internal): Adjust call to
        alpha_split_tfmode_pair and rely on it to swap the operands.
        (movti_internal): New insn and post-reload splitter.
        (movti): New expander.

2006-01-18  Philippe De Muyter  <phdm@macqel.be>

        * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
        operands.

2006-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * rtlanal.c (global_reg_mentioned_p_1,
        global_reg_mentioned_p): Remove.
        * rtl.h: Remove the prototype for global_reg_mentioned_p.

        * flow.c (initialize_uninitialized_subregs): Make it static.
        * rtl.h: Remove the prototype for
        initialize_uninitialized_subregs.

        * function.c (instantiate_virtual_regs): Make it static.
        * function.h: Remove the prototype for
        instantiate_virtual_regs.

        * regmove.c (regmove_optimize, combine_stack_adjustments):
        Make them static.
        * rtl.h: Remove the prototypes for regmove_optimize and
        combine_stack_adjustments.

2006-01-17  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (COSTS_N_BYTES): New macro.
        (size_cost): Encode costs in bytes so that a reg-reg addition is
        equivalent to COSTS_N_INSNS(1).
        (override_options): Use the size_cost.branch_cost as the default
        ix86_branch_cost when optimizing for size.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * Makefile.in (D32PBIT_FUNCS): New.
        (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
        (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
        D64PBIT_FUNCS and D128PBIT_FUNCS.
        (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
        * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
        D128PBIT are set.
        (decnumber_dep): Define.
        * doc/libgcc.texi (Decimal float library routines): New node.
        * config/dfp-bit.h, config/dfp-bit.c: New files.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * expr.c (emit_move_change_mode): Always adjust addresses, not
        just during reload.  Copy replacements only during reload.
        (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
        emit_move_via_integer.

2006-01-17  Shantonu Sen  <ssen@opendarwin.org>

        * Makefile.in (check-%, check-consistency): Use $${srcdir}
        instead of $(srcdir) and ${srcdir}.

2006-01-17  Richard Earnshaw  <rearnsha@arm.com>

        PR target/592
        PR middle-end/11135
        * arm.h (struct machine_function): Add pic_reg.
        * arm.c (arm_pic_register): Make unsigned.
        (arm_override_options): Only set arm_pic_register if
        TARGET_SINGLE_PIC_BASE.
        (use_return_insn): Only test for a pic register if it is fixed.
        (arm_compute_save_reg0_reg12_mask): Likewise.
        (thumb_compute_save_reg_mask): Likewise.
        (legitimate_pic_operand): Factor out some known invariants.
        (legitimize_pic_address): If we don't have a fixed pic register,
        then set up a pseudo in the function entry sequence.  Handle the
        pic base being in a pseudo.
        (arm_load_pic_register): Handle the pic register being in a pseudo.
        (arm_expand_prologue): Only set up the pic register if it is fixed.
        (thumb_expand_prologue): Likewise.
        * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
        (pic_load_addr_based_insn): Likewise.
        (builtin_setjmp_receiver): Don't restore the pic base if it isn't
        fixed.

2006-01-18  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
        decimal float modes for all floating point registers.

        * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
        match_code "mem" with match_test "macho_lo_sum_memory_operand".

2006-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR c/25682
        * c-typeck.c (build_unary_op): Fold offsetof-like expressions
        even when the pointer is not NULL.

2006-01-16  Ian Lance Taylor  <ian@airs.com>

        * common.opt (ftoplevel-reorder): New option.
        * cgraph.c (cgraph_asm_nodes): New global variable.
        (cgraph_asm_last_node): New static variable.
        (cgraph_order): New global variable.
        (cgraph_create_node): Set new order field.
        (cgraph_varpool_node): Likewise.
        (decide_is_variable_needed): Return true if not
        flag_toplevel_reorder.
        (cgraph_add_asm_node): New function.
        * cgraph.h (struct cgraph_node): Add order field.
        (struct cgraph_varpool_node): Add order field.
        (struct cgraph_asm_node): Define.
        (cgraph_asm_nodes, cgraph_order): Declare.
        (cgraph_add_asm_node): Declare.
        * cgraphunit.c (cgraph_varpool_assemble_decl): New static
        function.
        (cgraph_varpool_assemble_pending_decls): Call it.
        (cgraph_output_pending_asms): New static function.
        (cgraph_finalize_compilation_unit): Call it.
        (struct cgraph_order_sort): Define.
        (cgraph_output_in_order): New static function.
        (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
        !flag_toplevel_reorder case.
        * c-parser.c: Include "cgraph.h".
        (c_parser_asm_definition): Call cgraph_add_asm_node rather than
        assemble_asm.
        * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
        than -fno-unit-at-a-time.
        * doc/invoke.texi (Option Summary): Mention
        -fno-toplevel-reorder.
        (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
        -funit-at-a-time documentation.

2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
            Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.

2006-01-17  Kazu Hirata  <kazu@codesourcery.com>

        * Makefile.in (FUNCTION_H): New.  Use it instead of
        function.h throughout the file.
        * function.h: Include tree.h.

2006-01-17  Ben Elliston  <bje@au.ibm.com>

        * recog.c: Separate some functions with whitespace.

2006-01-16  Richard Henderson  <rth@redhat.com>

        Merge from gomp branch:
        * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
        * tree-inline.h (struct copy_body_data): Move from tree-inline.c
        and rename from struct inline_data.  Rename callee* to dst*;
        caller* to src*; add copy_decl hook, transform_call_graph_edges,
        transform_new_cfg, transform_return_to_modify, and
        transform_lang_insert_block flags; remove cloning_p, versioning_p,
        update_clones_p.
        (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
        (copy_decl_for_dup): Remove.
        * tree-inline.c (struct inline_data): Move to header.
        (insert_decl_map): Export.
        (remap_decl): Update for member name changes.  Use copy_decl hook.
        Allow for replacement to be a non-decl.  Remove dead code.
        (remap_type_1): Check for existing mapping.
        (remap_type): Export.
        (remap_decls): Update for member name changes.
        (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
        (copy_body, setup_one_parameter, declare_return_variable): Likewise.
        (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
        (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
        (tree_function_versioning, build_duplicate_type): Likewise.
        (copy_body_r): Likewise.  Export.
        (copy_decl_for_dup): Split into ...
        (copy_decl_for_dup_finish, copy_decl_to_var,
        copy_decl_no_change, copy_decl_maybe_to_var): ... these.
        (replace_ref_tree, inlining_p): Remove.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * ifcvt.c (if_convert): Make it static.
        * rtl.h: Remove the prototype for if_convert.

        * local-alloc.c (local_alloc): Make it static.
        * rtl.h: Remove the prototype for local_alloc.

        * loop.c (loop_optimize): Make it static.
        * cfgloop.h: Remove the prototype for loop_optimize.
        * rtl.h: Likewise.

2006-01-16  DJ Delorie  <dj@redhat.com>

        * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
        mems.

2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: Disparage copies between general and floating-point registers
        in 32-bit move patterns.

2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR testsuite/25741
        * Makefile.in (check-%): Depend on site.exp instead of
        $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
        directories.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * global.c (global_alloc): Make it static.
        * rtl.h: Remove the prototype for global_alloc.

2006-01-16  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (struct used_part): Add write_only field.
        (get_or_create_used_part_for): Initialize it to true.
        (create_overlap_variables_for): Don't create structure variables
        for structures that only are written to.
        (find_used_portions): Handle MODIFY_EXPR to track whether a
        structure is only written to.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
        static.
        * basic-block.h: Remove the prototype for
        partition_hot_cold_basic_blocks.

2006-01-16  Rafael Ãvila de EspÃ�­ndola <rafael.espindola@gmail.com>

        * cppspec.c (lang_specific_spec_functions): Remove.
        * gcc.c (lookup_spec_function): Use static_spec_functions directly.
        * gcc.h (lang_specific_spec_functions): Remove.
        * gccspec.c (lang_specific_spec_functions): Remove.

2006-01-16  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (record_value_for_reg): Invalidate registers
        if INSN is null.
        (record_dead_and_set_regs_1): Likewise, by passing them to
        record_value_for_reg.
        (record_dead_and_set_regs): Invalidate stores made by a
        call.  We do not combine across a call, but we still
        relied on equivalences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-vrp.c (extract_range_from_binary_expr): Cope with
        vrp_int_const_binop returning non-constant nodes.

2006-01-16  Paul Brook  <paul@codesourcery.com>

        * config/m68k/m68k.c (output_move_const_into_data_reg):
        Output correct mnemonic for mvz and mvs.

2006-01-16  Gabor Loki  <loki@gcc.gnu.org>

        * rtl-factoring.c: Add sequence abstraction algorithm.
        * cfgcleanup.c (outgoing_edges_match): Extra checks.
        (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
        ABNORMAL edges.
        (block_has_preserve_label): New function.
        * common.opt: Register new pass.
        * Makefile.in: Ditto.
        * passes.c: Ditto.
        * timevar.def: Ditto.
        * tree-pass.h: Ditto.
        * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
        * rtl.h (make_jump_insn_raw): Add forward decl.
        * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.

2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
            Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_minmax): New static function.
        (fold_binary) <MIN_EXPR>: Call it.
        <MAX_EXPR>: Likewise.
        * stor-layout.c (place_field): Use DECL_SIZE consistently
        in the computation of the new record size.

2006-01-16  Kazu Hirata  <kazu@codesourcery.com>

        * cse.c (cse_condition_code_reg): Make it static.
        * rtl.h: Remove the prototype for cse_condition_code_reg.

        * combine.c (combine_instructions): Make it static.
        * rtl.h: Remove the prototype for combine_instructions.

2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/25168
        * tree.c (get_file_function_name_long): Concatenate the first global
        object name with a string derived from the input filename of the object
        for type "F".

2006-01-16  Ben Elliston  <bje@au.ibm.com>

        * config/i386/winnt-stubs.c: Update FSF address.
        * config/xtensa/ieee754-df.S: Ditto.
        * config/xtensa/ieee754-sf.S: Ditto.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

        * ifcvt.c (noce_init_if_info): New static function, broken out of
        noce_process_if_block.
        (noce_process_if_block): Call noce_init_if_info.
        (check_cond_move_block): New static function.
        (cond_move_process_if_block): New static function.
        (process_if_block): Call cond_move_process_if_block.

2006-01-15  Kazu Hirata  <kazu@codesourcery.com>

        * cselib.c (hash_table): Rename to cselib_hash_table.
        (cselib_clear_table, discard_useless_values,
        remove_useless_values, cselib_lookup_mem, cselib_lookup,
        cselib_init, cselib_finish): Adjust uses of hash_table.

2006-01-14  Kazu Hirata  <kazu@codesourcery.com>

        PR tree-optimization/25485
        * tree-vrp.c (extract_range_from_binary_expr): Handle cases
        where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
        is known to be false and true, respectively.

2006-01-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22548
        PR tree-optimization/22555
        PR tree-optimization/22501
        * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
        * params.def (salias-max-array-elements): New parameter.
        * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
        * doc/invoke.texi (salias-max-array-elements): Document.
        * tree-flow-inline.h (var_can_have_subvars): We also handle
        arrays now.
        * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
        COMPONENT_REF.
        * tree-ssa-structalias.c (params.h): Include.
        (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
        (find_func_aliases): Handle multiple constraints from ARRAY_REF.
        (get_constraint_for): For ADDR_EXPR operating on something
        containing an ARRAY_REF, add all subvars to the solution.
        (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
        * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
        for creating MUST_DEFs.
        (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.

2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
        functions.
        (number_of_iterations_ne, number_of_iterations_lt_to_ne,
        assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
        number_of_iterations_le): New functions.
        (number_of_iterations_special): Removed.
        (number_of_iterations_exit): Do not use number_of_iterations_special.
        * tree.c (unsigned_type_for): Always return integer type.

2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
        Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/24257
        * gcse.c (find_moveable_store): Only consider a store movable
        when the SET_SRC of the insn can be assigned to a register.

2006-01-14  Ian Lance Taylor  <ian@airs.com>

        * tree.c (tree_not_class_check_failed): New function.
        * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
        (tree_not_class_check_failed): Declare.

2006-01-13  Ian Lance Taylor  <ian@airs.com>

        * reload1.c (do_output_reload): Add assertion rejecting a
        CALL_INSN.

2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (struct reg_stat): Add new fields truncation_label and
        truncated_to_mode.
        (record_value_for_reg): Reset truncated_to_mode.
        (record_truncated_value): New function.
        (check_promoted_subreg): Call it.  Rename to check_conversions.
        (combine_instructions): Rename check_promoted_subreg to
        check_conversions.
        (reg_truncated_to_mode): New function.
        (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
        (gen_lowpart_or_truncate): New function.
        (force_to_mode): Use it instead of gen_lowpart.

2006-01-13  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
        VAR is a tag, not its type tag.

2006-01-13  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
        alternatives to match style of other entries.
        (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.

2006-01-13  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/25771
        * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
        SSA_NAMES.

2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/24365
        * tree-inline.c (declare_return_variable): If the return variable
        was marked as a non gimple complex, set the return slot variable
        to be a non gimple comple variable.

2006-01-13  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_sincos): New function.
        (expand_builtin_mathfn_3): Remove dead code, sin and cos
        do not set errno.
        (expand_builtin): Expand sincos using expand_builtin_sincos.

2006-01-12  DJ Delorie  <dj@redhat.com>

        * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
        shift counts, separate SI shifts for m32c vs m16c, pass shift type
        so that constant shifts can be split.
        * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
        (m32c_valid_pointer_mode): Make static.
        (shift_gen_func_for): New.
        (m32c_prepare_shift): Use it.  Split large const shifts into
        multiple shifts.
        * config/m32c/predicates.md (shiftcount_operand): Allow more
        general operands.
        (longshiftcount_operand): New.
        * doc/md.texi (Machine Constraints): Document In6.

2006-01-13  Ben Elliston  <bje@au.ibm.com>

        * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
        REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
        documentation.

2006-01-12  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
        to try to avoid clobbering pieces of structures when we know
        something about the whole structure.
        * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR

2006-01-13  Ben Elliston  <bje@au.ibm.com>

        * doc/rtl.texi (Insns): Remove statement that libcalls cannot
        return in memory, as this is no limitation is no longer present.

2006-01-12  DJ Delorie  <dj@redhat.com>

        * config/m32c/addsub.md (addhi3): Add two more alternatives, for
        mova with fb, and for fb+0 -> An.

        * config/m32c/mov.md (peephole2): Fix enabling logic.

        * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
        DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
        DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
        FINI_ARRAY_SECTION_ASM_OP): Define.

        * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
        variable.
        (m32c_legitimize_reload_address): New logic to reload FB to An.
        (m32c_output_reg_push): Add newline.
        (m32c_output_reg_pop): Likewise.

2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>

        * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.

2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>

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

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/predicates.md (sh_rep_vec): Add parallel to
        match_code.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

        * rtlanal.c (find_reg_note): Assert insn is not null.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (df_hard_reg_init): Move declaration of i outside
        ifdef.

2006-01-11  Jeff Law  <law@redhat.com>

        * tree-ssa-threadupdate.c (threaded_edges): New VEC to
        hold edge pairs.
        (mark_threaded_blocks, register_jump_thread): New functions.
        (thread_through_all_blocks): Remove unwanted argument.  No
        longer rely on e->aux to communicate thread target info.
        Call mark_threaded_blocks.  Release the threaded_blocks
        bitmap and threaded_edges vector when complete.
        * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
        (threaded_blocks): Remove.
        (tree_ssa_dominator_optimize): Remove initialization and
        finalization of threaded_blocks.  Simplify call to
        thread_through_all_blocks.
        (thread_across_edge): Call register_jump_thread rather than
        storing thread information into e->aux.
        (free_all_edge_infos): Simplify now that e->aux is no longer
        used to communicate with thread_through_all_blocks.
        * tree-flow.h (thread_through_all_blocks): Update prototype.
        (register_jump_thread): Prototype.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * df-core.c (df_compact_blocks, df_bb_replace): Use
        SET_BASIC_BLOCK instead of BASIC_BLOCK.

2006-01-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/25734
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
        stop propagation after successful propagation to the LHS.

2006-01-11  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (control_flow_graph): Change the type of
        x_basic_block_info to VEC(basic_block,gc) *.
        (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
        basic_block_info.
        (SET_BASIC_BLOCK): New.
        * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
        instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfglayout.c (fixup_reorder_chain): Likewise.
        * cfgrtl.c (create_basic_block_structure,
        rtl_create_basic_block): Likewise.
        * ifcvt.c (find_if_case_1): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
        Likewise.

2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * Makefile.in: Removed rotted odf.c entry.

2006-01-11  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25706
        * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
        ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
        ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
        output pattern modifier, not %e.
        * config/cris/cris.c (cris_op_str): Update comment about pattern
        modifier.
        (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
        before falling through into...
        <case 'E'>: Redefined from old 'e' case.

2006-01-11  Jan Hubicka  <jh@suse.cz>

        PR target/25042
        * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128

2006-01-11  Jan Hubicka  <jh@suse.cz>

        * i386.h (TARGET_DECOMPOSE_LEA): Kill.
        * i386.c (x86_decompose_lea): Kill.
        (ix86_rtx_costs): Kill.

2006-01-11  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_insert_node_to_hashtable): New function.
        * cgraph.h (cgraph_node): Add inline_decl.
        (cgraph_insert_node_to_hashtable): Declare.
        (save_inline_function_body): Declare.
        * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
        clones.
        (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
        (cgraph_function_versioning): Update call of tree_function_versioning.
        (save_inline_function_body): New function.
        * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
        saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
        * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
        (cgraph_default_inline_p): Likewise.
        (cgraph_decide_inlining_incrementally): Likewise.
        * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
        (copy_bb): Kill saving; do updating of clones.
        (copy_cfg_body): Kill saving.
        (initialize_inlined-parameters): Likewise.
        (expand_call_inline): Likewise.
        (save_body): Kill.
        (tree_function_versioning): New parameter "update_clones".
        (inlining_p): Kill saving.
        * tree-inline.h (tree_function_versioning): Update prototype.
        * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
        saving.

2006-01-11  Ian Lance Taylor <ian@airs.com>

        * combine.c (struct undo): Remove is_int.  Enumify types of undos.
        Allow undoing set of machine mode.
        (do_SUBST): Use enums instead of is_int.
        (do_SUBST_MODE): New function.
        (SUBST_MODE): New macro.
        (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
        reg and trying to replace reg_regno_rtx with a new register.
        (undo_all): Use new enums, handle undoing a PUT_MODE change.
        (simplify_set): Use SUBST_MODE.
        (distribute_notes): Remove code that tried to update reg notes
        for regno_reg_rtx changes.

2006-01-11  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/23109
        PR tree-optimization/23948
        PR tree-optimization/24123

        * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
        * tree-cfg.c (single_noncomplex_succ): New.
        * tree-flow.h (single_noncomplex_succ): Declare it.
        * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
        * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
        (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
        insert_bb, register_division_in, insert_reciprocals,
        replace_reciprocal, free_bb): New.
        (execute_cse_reciprocals_1): Rewritten.
        (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
        Do not commit any edge insertion.  Always compute dominators and
        create the allocation pool.
        * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
        * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
        * targhooks.c (default_min_divistions_for_recip_mul): New.
        * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
        * passes.c (init_optimization_passes): Run recip after tree loop
        optimizations.
        * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.

2006-01-11  Danny Berlin <dberlin@dberlin.org>
            Kenneth Zadeck <zadeck@naturalbridge.com>

        * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
        DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
        DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
        DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
        DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
        DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
        DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
        DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
        DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
        DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
        DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
        DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
        DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
        DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
        DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
        DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
        DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
        DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
        DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
        DF_SCAN_POST_ALLOC): New macros.
        (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
        df_free_bb_function, df_local_compute_function, df_init_function,
        df_dataflow_function, df_confluence_function_0,
        df_confluence_function_n, df_transfer_function,
        df_finalizer_function, df_free_function, df_dump_problem_function,
        df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
        df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
        df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
        df_urec_bb_info, ) New types.
        (df_invalidated_by_call, df_all_hard_regs, df_state) New public
        variables.
        (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
        df_analyze_simple_change_some_blocks,
        df_analyze_simple_change_one_block, df_compact_blocks,
        df_bb_replace, df_bb_regno_last_use_find,
        df_bb_regno_first_def_find, df_bb_regno_last_def_find,
        df_insn_regno_def_p, df_find_def, df_find_use,
        df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
        df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
        df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
        debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
        debug_df_chain, df_get_dependent_problem, df_chain_create,
        df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
        df_grow_bb_info, df_chain_dump, df_print_bb_index,
        df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
        df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
        df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
        df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
        df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
        df_rescan_blocks, df_ref_create, df_get_artificial_defs,
        df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
        df_ref_remove, df_insn_refs_delete, df_refs_delete,
        df_reorganize_refs, df_set_state, df_hard_reg_init,
        df_read_modify_subreg_p) New public functions.
        * df-core.c: The core dataflow solver and glue routines for rtl
        dataflow.
        (df_init, df_add_problem, df_set_blocks, df_finish,
        df_hybrid_search_forward, df_hybrid_search_backward,
        df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
        df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
        df_bb_regno_last_use_find, df_bb_regno_first_def_find,
        df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
        df_reg_defined, df_find_use, df_reg_used, df_dump,
        df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
        df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
        debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
        debug_df_useno, reset_df_after_reload): New functions.
        * df-scan.c: The scanning fuctions, once in df.c, completely
        rewritten so that they now fully model the functionality of
        register usage at the backend.
        (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
        df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
        df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
        df_grow_insn_info, df_rescan_blocks, df_ref_create,
        df_get_artificial_defs, df_get_artificial_uses,
        df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
        df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
        df_refs_delete, df_reorganize_refs, df_set_state,
        df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
        df_def_record_1, df_defs_record, df_uses_record,
        df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
        df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
        df_record_exit_block_uses, df_hard_reg_init): New functions.

        * df-problems.c: Seven concrete dataflow problems that use the
        scanning in df-scan.c and are solved by the engine in df-core.c.
        (df_get_dependent_problem, df_chain_create, df_chain_unlink,
        df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
        df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
        df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
        df_ru_free_bb_info, df_ru_alloc,
        df_ru_bb_local_compute_process_def,
        df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
        df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
        df_ru_transfer_function, df_ru_free, df_ru_dump,
        df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
        df_rd_free_bb_info, df_rd_alloc,
        df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
        df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
        df_rd_transfer_function, df_rd_free, df_rd_dump,
        df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
        df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
        df_lr_local_compute, df_lr_init, df_lr_confluence_0,
        df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
        df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
        df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
        df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
        df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
        df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
        df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
        df_urec_mark_reg_change, df_urec_check_earlyclobber,
        df_urec_mark_reg_use_for_earlyclobber,
        df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
        df_urec_local_compute, df_urec_init, df_urec_local_finalize,
        df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
        df_urec_dump, df_urec_add_problem, df_chain_alloc,
        df_chain_create_bb_process_use, df_chain_create_bb,
        df_chain_finalize, df_chain_free, df_chains_dump,
        df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
        df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
        df_reg_lifetime): New functions.
        * df.c: Deleted file.
        * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
        consistent with new df api.
        * modulo-sched.c (sms_schedule, rest_of_handle_sms,
        rest_of_handle_sms): Ditto.
        * web.c (unionfind_union, union_defs, entry_register, web_main):
        Ditto.
        * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
        invariant_expr_equal_p, find_defs, check_dependencies,
        find_invariant_insn, find_invariants_to_move, move_invariant_reg,
        free_inv_motion_data, move_loop_invariants): Ditto.
        * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
        Update dependencies.
        (odf.c): Added defective entry that was deleted later in day.
        * sched-deps.c (sched_analyze_1): Ditto.

2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-operands.c (get_expr_operands): Record addressable
        variables directly.  Do not call add_stmt_operands for CONST_DECLs
        and ARRAY_DECLs.
        (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
        (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.

2006-01-11  Ben Elliston  <bje@au.ibm.com>

        * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
        function returns true in the positive case.

2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/20754
        * config/pa/pa.md: Create separate 32 and 64-bit move patterns
        for SI, DI, SF and DF modes.  Add alternatives to copy between
        general and floating point registers to the 32-bit patterns.
        * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
        * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
        (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
        generating 64-bit code.
        * config/pa/pa.c (output_move_double): Handle copies between general
        and floating registers.

2006-01-10  Stuart Hastings  <stuart@apple.com>

        * config/i386/i386.md (set_got): Update.
        (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
        (builtin_setjmp_receiver): Mach-O support.
        * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
        (GOT_SYMBOL_NAME): Define.
        (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
        (TARGET_DEEP_BRANCH_PREDICTION): Remove.
        * config/i386/i386.c (override_options): Revise for Darwin.
        (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
        support.  (darwin_x86_file_end): New.  (output_set_got): Add label
        parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
        * config/i386/i386-protos.h (output_set_got): Likewise.
        * config/darwin.c (machopic_legitimize_pic_address): Update
        regs_ever_live[].

2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
        when MODE isn't BLKmode.

2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/25367
        * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.

2006-01-10  Hans-Peter Nilsson  <hp@axis.com>

        PR target/25718
        * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
        for a negative bound.

2006-01-10  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Never override with anything constraint.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
        256 bits when optimize_size.

2006-01-10  Jan Beulich  <jbeulich@novell.com>

        * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
        MASK_ALIGN_DOUBLE.
        * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
        * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
        arguments.

2006-01-10  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
        float modes.
        * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
        (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
        (USE_FP_FOR_ARG): Reject decimal float modes.
        (function_arg_advance): Likewise.
        (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
        (rs6000_handle_altivec_attribute): Do not permit decimal floating
        point types in AltiVec vectors.
        (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
        (rs6000_libcall_value): Likewise.

2006-01-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/ieee754-df.S: New file.
        * config/xtensa/ieee754-sf.S: New file.
        * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
        (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
        * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.

2006-01-09  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/predicates.md (binary_float_operator,
        binary_logical_operator, commutative_float_operator,
        equality_comparison_operator, greater_comparison_operator,
        less_comparison_operator, logical_operator,
        noncommutative_float_operator, shift_operator,
        symbol_ref_operand, unary_float_operator): Remove redundant
        conditionals.

2006-01-09  Jeff Law  <law@redhat.com>

        * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
        code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
        now unused arguments.  Callers updated.
        (eliminate_redundant_computations): Remove now unused arguments,
        callers updated.
        (local_fold): Remove, no longer used.
        (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
        and moved to...
        * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
        (simplify_cond): New function.
        (forward_propagate_into_cond): Call simplify_cond.

2006-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
        (*vec_extractv2di_1_sse): New.

2006-01-09  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.

2006-01-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (get_constraint_for): Remove
        anyoffset argument.
        (get_constraint_for_component_ref): Likewise.
        (do_deref): Likewise.
        (get_constraint_for): Likewise.
        (do_structure_copy): Likewise.
        (handle_ptr_arith): Likewise.
        (find_func_aliases): Likewise.  Remove unused need_anyoffset
        variable.

2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (CONST_OK_FOR_K16): Define.
        (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
        (EXTRA_CONSTRAINT_C16): Remove.
        (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
        (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
        EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
        * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
        constants of SHmedia.  Handle nested constant expressions of
        SHmedia correctly.
        (andcosts): Fix the costs for SHmedia constants.
        (sh_rtx_costs): Take account of outer_code for SHmedia constants.
        * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
        (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
        (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
        (movv4hi_i, movv2si_i): Likewise.
        (movsi_const): Adjust the second operand of ior so to match with
        the Csu constraint.
        (movdi_const, movdi_const_32bit): Likewise.
        (movdi_const_16bit+1): Don't sign-extend LOW.
        (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
        step.
        (*double_shori): Fix the split condition.  Use GEN_INT instead
        of get_int_mode calls.  Mask lower 16-bit of the argument of
        the last GEN_INT.
        (sym2GOTPLT): Remove.
        (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
        gen_rtx_UNSPEC.
        * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
        instead of EXTRA_CONSTRAINT_C16.

2006-01-07  Ian Lance Taylor  <ian@airs.com>
            David Edelsohn  <edelsohn@gnu.org>

        PR rtl-optimization/25662
        * optabs.c (simplify_expand_binop): Use simplify_binary_operation
        for constant operands instead of simplify_gen_binary.
        * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
        after trying simplify_binary_operation

2006-01-06  Daniel Berlin  <dberlin@dberlin.org>

        * tree.c (iterative_hash_expr): Hash decls based on UID.

2006-01-06  Eric Christopher  <echristo@apple.com>

        * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
        (TARGET_UNWIND_EMIT): Fix spelling.
        * target.h (gcc_target): Add except_table_label.
        * except.c (output_function_exception_table): Use.
        * varasm.c (default_emit_except_table_label): New.
        * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
        define.
        (asm_out): Add here.
        * output.h (default_emit_except_table_label): Prototype.
        * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
        * config/darwin.c (darwin_emit_except_table_label): Define.
        * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.

2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/18527
        * tree-ssa-loop-niter.c (number_of_iterations_cond,
        number_of_iterations_special, number_of_iterations_exit):
        Move base and step of an iv to a single structure.  Add
        no_overflow flag, and use it in # of iterations analysis.
        * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
        folded_casts argument.
        (simple_iv): Pass base and step in a structure.  Set no_overflow
        flag.
        (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
        Evaluate expensiveness of computing # of iterations instead of
        the final expression.
        * tree-scalar-evolution.h (affine_iv): New structure.
        (simple_iv): Declaration changed.
        * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
        * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
        find_givs_in_stmt): Changed due to simple_iv change.

2006-01-06  Jeff Law  <law@redhat.com>

        PR ada/24994
        * tree-cfg.c (bsi_replace): Rename final argument from
        PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
        change (stmt -> orig_stmt).
        * tree-eh.c (verify_eh_throw_stmt_node): New function.
        (bsi_remove): Add new argument.  Remove EH information
        if requested.
        (verify_eh_throw_table_statements): New function.
        (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
        updated.
        * tree-optimize.c (execute_free_cfg_annotations): Verify
        the EH throw statement table after removing annotations.
        * except.h (verify_eh_throw_table_statements): Prototype.
        * tree-flow.h (bsi_remove): Update prototype.
        * tree-vrp.c (remove_range_assertions): Add new argument to
        bsi_remove call.
        * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
        * tree-complex.c (expand_complex_div_wide): Likewise.
        * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
        * tree-tailcall.c (eliminate_tailcall): Likewise.
        * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
        * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
        * tree-nrv.c (tree_nrv): Likewise.
        * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
        * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
        (combine_blocks): Likewise.
        * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
        * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
        (cleanup_control_flow): Likewise.
        (remove_forwarder_block): Likewise.
        * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
        * tree-sra.c (sra_replace): Likewise.
        * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
        (forward_propagate_single_use_vars): Likewise.
        * tree-ssa-dce.c (remove_dead_stmt): Likewise.
        * tree-inline.c (expand_call_inline): Likewise.
        * tree-vect-transform.c (vect_transform_loop): Likewise.
        * tree-outof-ssa.c (rewrite_trees): Likewise.
        * tree-cfg.c (make_goto_expr_edges): Likewise.
        (cleanup_dead_labels): Likewise.
        (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
        (bsi_move_before, bsi_move_after): Likewise.
        (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
        (tree_redirect_edge_and_branch, tree_split_block): Likewise.

2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25528
        * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
        and IMAGPART_EXPR.
        * tree-flow-inline.h (var_can_have_subvars): Handle complex types
        on non gimple variables.  Also add checks at the top for decls and
        mtags.
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
        complex types.
        * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
        and IMAGPART_EXPR for creating MUST_DEFs.
        (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
        and NAME_MEMORY_TAG separately from the DECLs.

2006-01-06  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (mark_new_vars_to_rename): Create stmt
        annotation, if necessary.
        * tree-ssa-pre.c (create_expression_by_pieces): Remove
        redundant calls to update_stmt.
        * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
        Likewise.

2006-01-05  Richard Henderson  <rth@redhat.com>

        * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

        * c-typeck.c: Update copyright date.

2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>

        * c-typeck.c (build_c_cast): Always warn when casting
        from a pointer to an integer of different size, even if
        the node was constant.

2006-01-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/22555
        * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
        if one structure field is an array.
        * tree-ssa-operands.c (get_expr_operands): Continue scanning
        operands even if we found a subvar, but ignore VOPs in this
        case.
        * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
        for renaming.
        * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.

2006-01-05  Richard Earnshaw  <rearnsha@arm.com>

        PR middle-end/24998
        * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.

2006-01-05  Richard Guenther  <rguenther@suse.de>
            Diego Novillo  <dnovillo@redhat.com>

        * tree-pass.h (TODO_remove_unused_locals): Define.
        * gimple-low.c (expand_var_p, remove_useless_vars,
        pass_remove_useless_vars): Remove.  Update all users.
        * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
        (remove_unused_locals): New function.
        * tree-flow.h (remove_unused_locals): Declare.
        * passes.c (execute_todo): Call remove_unused_locals if
        TODO_remove_unused_locals is set.
        * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
        * tree-ssa-dce.c (pass_dce): Likewise.
        * tree-outof-ssa.c (pass_del_ssa): Likewise.

2006-01-05  Richard Guenther  <rguenther@suse.de>

        * tree-flow.h (struct fieldoff): Decompose field to
        type, size and decl.
        * tree-ssa-alias.c (create_sft): Take type as parameter.
        (create_overlap_variables_for): Store type, size and decl
        in the fieldoff structure.
        * tree-ssa-structalias.c (fieldoff_compare): Adjust users
        of struct fieldoff.
        (push_fields_onto_fieldstack): Likewise.
        (create_variable_info_for): Likewise.  Use offset for the
        SFT name if the decl is not available.

2006-01-04  Paul Brook  <paul@codesourcery.com>

        * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.

2006-01-04  Daniel Berlin  <dberlin@dberlin.org>

        * lambda-code.c (can_put_in_inner_loop): Relax
        restrictions.
        (can_put_after_inner_loop): New function.
        (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
        (perfect_nestify): Change to make copies and modify uses.

2006-01-04  Richard Henderson  <rth@redhat.com>

        Merge from gomp branch:
        * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
        via integer constant.
        (pragma_lex): Remove.
        * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
        rather than parsing it.
        * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
        handle_pragma_extern_prefix): Add %< %> quotes.
        (registered_pragmas): New.
        (c_register_pragma_1): New.
        (c_register_pragma): Use it.
        (c_register_pragma_with_expansion): Likewise.
        (c_invoke_pragma_handler): New.
        (init_pragma): Use cpp_register_deferred_pragma directly for
        pch_preprocess.
        * c-pragma.h (enum pragma_kind): New.
        (pragma_handler): New.
        (c_invoke_pragma_handler): Declare.
        * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
        CPP_PRAGMA_EOL.
        * c-common.h (c_common_pch_pragma): Update decl.
        * Makefile.in (c-parser.o): Update dependencies.
        (GTFILES): Add c-pragma.h.
        * c-parser.c (struct c_token): Add pragma_kind.
        (struct c_parser): Add in_pragma.
        (c_lex_one_token): Always initialize keyword and pragma_kind.
        Extract data for CPP_PRAGMA.
        (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
        (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
        Don't allow CPP_PRAGMA_EOL if in_pragma.
        (c_parser_consume_pragma): New.
        (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
        (c_parser_skip_to_end_of_parameter): Likewise.
        (c_parser_skip_to_end_of_block_or_statement): Likewise.
        (c_parser_skip_to_pragma_eol): New.
        (c_parser_external_declaration): Handle CPP_PRAGMA.
        (c_parser_compound_statement_nostart): Likewise.
        (c_parser_statement_after_labels): Likewise.
        (c_parser_pragma): New.
        (pragma_lex): Likewise.
        (c_parser_pragma_pch_preprocess): New.
        (c_parser_new): Merge into ...
        (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.

2006-01-04  Jeff Law  <law@redhat.com>

        PR ada/24994
        * tree-cfg.c (bsi_replace): Remove the original statement
        from the EH throw statement table.

2006-01-04  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
        make the prototype extern "C" and add throw ().

        PR target/25554
        * config/i386/i386.md (testqi_ext_3): Ensure len is positive
        and pos non-negative and pos + len <= 32.
        (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
        drop pos + len < HOST_BITS_PER_WIDE_INT test.
        (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.

        PR c/25559
        * c-common.c (handle_vector_size_attribute): Reject zero vector size
        as well as sizes not multiple of component size.

        PR debug/25562
        * function.c (instantiate_expr): New function.
        (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
        walk its DECL_VALUE_EXPR with instantiate_expr.

        * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
        DW_OP_deref{,_size} if address isn't going to be added.

2006-01-04  Ben Elliston  <bje@au.ibm.com>

        * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
        * config/fp-bit.c: Likewise.

2006-01-03  Daniel Berlin  <dberlin@dberlin.org>

        * dominance.c: Add comment about why we use DFS numbering
        of dominance tree.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>
            Richard Henderson  <rth@redhat.com>

        Merge from gomp-branch:
        * varasm.c (assemble_variable): Handle thread-local COMMON data.
        * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.

2006-01-03  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/25578
        * combine.c (combine_simplify_rtx, force_to_mode): Don't
        pass a parameter to simplify_shift_const if changing ASHIFTRT
        to LSHIFTRT.

2006-01-03  Adrian Straetling  <straetling@de.ibm.com>

        * builtins.c (get_builtin_sync_mem): New function.
        (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
        expand_builtin_lock_test_and_set, expand_builtin_lock_release):
        Call get_builtin_sync_mem to generate mem rtx.

2006-01-03  Richard Guenther  <rguenther@suse.de>

        PR c/25183
        * stmt.c (add_case_node): Make sure to clear overflow flags
        from ranges.

2006-01-03  Jakub Jelinek  <jakub@redhat.com>

        Merge from gomp-branch.
        * config/sparc/sync.md: New file.
        * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
        UNSPECV_LDSTUB): New constants.
        * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
        * config/sparc/predicates.md (memory_reg_operand): New predicate.
        * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
        prototype.

2006-01-03  Roger Sayle  <roger@eyesopen.com>

        * combine.c (reg_subword_p): New predicate to test whether the
        destination of a set refers to a subword/piece of a register.
        (try_combine): Generalize the code to merge the setting of a
        pseudo to a constant followed by a set of a subword of that
        register to a constant.

2006-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h (control_flow_graph): Change the type of
        x_label_to_block_map to VEC(basic_block,gc) *.
        * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
        set_bb_for_stmt): Adjust the uses of x_label_to_block_map.

        * tree-ssa-propagate.c (cfg_blocks): Change the type to
        VEC(basic_block,heap) *.
        (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
        ssa_prop_fini): Adjust the uses of cfg_blocks.

2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>

        * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
        COMPONENT_REFs.
        * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
        hashing trees instead of a pointer hash.
        (mem_attrs_htab_eq): Do a deep compare instead of a pointer
        compare for MEM_EXPR.

        PR rtl-optimization/25130
        * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
        when comparing MEMs for GCSE

2006-01-03  Ben Elliston  <bje@au.ibm.com>

        * targhooks.h (default_decimal_float_supported_p): Declare.
        * targhooks.c (default_decimal_float_supported_p): Define.
        * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
        `default_decimal_float_supported_p'.
        * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.

2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (apply_distributive_law <SUBREG>): Check
        TRULY_NOOP_TRUNCATION.

2006-01-02  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (have_switched_text_section): Delete.
        (have_multiple_function_sections): New.
        (have_location_lists): Make 'bool'.
        (add_AT_loc_list): Use 'true' not '1'.
        (dwarf2out_switch_text_section): Set have_multiple_function_sections.
        (output_loc_list): Use have_multiple_function_sections.
        (output_ranges): Likewise.
        (dwarf2out_begin_function): Set have_multiple_function_sections if
        necessary.
        (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
        Check function_section rather than DECL_SECTION_NAME.
        (dwarf2out_finish): Use have_multiple_function_sections.
        Don't clear have_location_lists.

2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
            Jan Hubicka  <jh@suse.cz>

        * cfglayout.c (fixup_reorder_chain): Remove kludge for the
        case of conditional jump jumping to the next instruction.
        * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
        cases of conditional jump jumping to the next instruction.

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

        * i386.c (*_cost): Add COSTS_N_INSNS.
        (ix86_rtx_costs): Do not use COSTS_N_INSNS.

2006-01-02  Paolo Bonzini  <bonzini@gnu.org>

        PR target/25259
        * Makefile.in (DECNUMINC): Include libdecnumber's build directory.

2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        * config/arm/arm.c (all_fpus): Fix comment typo.
        * config/darwin.c: Likewise.
        * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
        * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
        * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.

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

        * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
        (rs6000_split_compare_and_swapqhi): New.
        * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
        (sync_compare_and_swapqhi_internal): New.
        * config/rs6000/rs6000-protos.h: Declare.