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->