* rtlanal.c (note_stores): Improve documentation.

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

2007-06-15  Mark Mitchell  <mark@codesourcery.com>

        * rtlanal.c (note_stores): Improve documentation.

2007-06-15  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/elf.h (ASM_GENERATE_INTERNAL_LABEL,
        LOCAL_LABEL_PREFIX): Delete.
        * config/bfin/bfin.c (TARGET_ASM_INTERNAL_LABEL): Delete.
        (bfin_internal_label): Delete.

2007-06-15  Uros Bizjak  <ubizjak@gmail.com>

        * libgcc2.c (CEXT): When compiling L_multc3 and L_divtc3,
        define to "l" if LIBGCC_LONG_DOUBLE_SIZE == 128,
        otherwise define to LIBGCC2_TF_CEXT.
        * config/i386/linux64.h (LIBGCC2_HAS_TF_MODE): New define.
        (LIBGCC_TF_CEXT): Ditto.
        (TF_SIZE): Ditto.

2007-06-14  Seongbae Park  <seongbae.park@gmail.com>

        PR rtl-optimization/32339
        * df-scan.c (df_uses_record): Don't modify flags but just add to
        it for df_ref_record.

2007-06-14  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * tree-mudflap.c: Fix whitespace issues.

2007-06-15  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (ASM_DOT, ASM_DOTW, ASM_DOTL): Remove.

2007-06-14  Eric Christopher  <echristo@apple.com>

        * config/i386/sse.md (movdi_to_sse): Rewrite body.
        (movv4sf): Use gcc_unreachable instead of abort.

2007-06-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/32268
        * config/i386/sfp-machine.h (CMPtype): New define.
        (mach stubs): Use CMPtype instead of int as a return type.

2007-06-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/soft-fp/eqdf2.c, config/soft-fp/eqsf2.c,
        config/soft-fp/eqtf2.c, config/soft-fp/gedf2.c,
        config/soft-fp/gesf2.c, config/soft-fp/getf2.c,
        config/soft-fp/ledf2.c, config/soft-fp/lesf2.c,
        config/soft-fp/letf2.c, config/soft-fp/unorddf2.c,
        config/soft-fp/unordsf2.c, config/soft-fp/unordtf2.c,
        config/soft-fp/soft-fp.h: Update from glibc CVS.

2007-06-14  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/uclinux.h (MFWRAP_SPEC): New.

2007-06-14  Rask Ingemann Lambertsen  <rask@sygehus.dk>

        PR target/32341
        * config/v850/v850.c: Include dataflow header file.
        (substitute_ep_register): Fix typo.

2007-06-14  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Fix earlier checkin.
        * configure: Regenerated.

2007-06-14  Paolo Bonzini  <bonzini@gnu.org>

        * acinclude.m4 (gcc_AC_CHECK_PROG_VER): Remove.
        * aclocal.m4: Regenerate.
        * configure.ac: Use ACX_PROG_CC_WARNING_OPTS,
        ACX_PROG_CC_WARNINGS_ARE_ERRORS,
        ACX_PROG_CC_WARNING_ALMOST_PEDANTIC, ACX_CHECK_PROG_VER.
        * configure: Regenerate.
        * Makefile.in (LOOSE_WARN): Subst loose_warn.

        * Makefile.in (quickstrap): Build libgcc too.

2007-06-14  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Add --enable-checking=df.  Explicitly mention that
        the variables are initialized as for "release".
        * df-core.c: Use it.
        * configure: Regenerate.
        * config.in: Regenerate.

2007-06-14  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_expand_nonlocal_goto): Use
        validate_replace_rtx instead of replace_rtx.
        (xtensa_expand_prologue): Call df_insn_rescan after replace_rtx.

2007-06-14  Danny Smith  <dannysmith@users.sourceforge.net>

        * config/i386/cygming.h (DWARF_FRAME_REGNUM): Define.
        (DWARF2_UNWIND_INFO): Override default if configured with
        SJLJ EH disabled.
        * config/i386/cygwin.h (STARTFILE_SPEC): Add crtbegin.o.
        (ENDFILE_SPEC): Add crtend.o.
        * config/i386/mingw32.h (STARTFILE_SEC): Add crtbegin.o.
        (ENDFILE_SPEC): Add crtend.o.
        (TARGET_USE_JCR_SECTION): Define.
        (MD_UNWIND_SUPPORT): Define for 32-bit target.

        * config/i386/cygming-crtbegin.c: New file.
        * config/i386/cygming-crtend.c: New file.

2007-06-14  Pascal Obry Pascal Obry  <obry@adacore.com>

        * config/i386/w32-unwind.h: New file.

2007-06-13  Eric Christopher  <echristo@apple.com>

        * config/i386/darwin.h (PREFERRED_STACK_BOUNDARY): Don't let
        the user set a value below STACK_BOUNDARY.

2007-06-13  Thiemo Seufer  <ths@networkno.de>

        * config/mips/linux.h, config/mips/linux64.h (LIB_SPEC): Always
        imply -lpthread for -pthread.

2007-06-13  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h: Remove the prototype for
        free_basic_block_vars.
        * cfglayout.h: Remove the prototype for
        insn_locators_initialize.
        * tree.h: Remove the prototype for emit_line_note.

        * tree-ssa-pre.c (mergephitemp): Remove.
        (init_pre): Don't use mergephitemp.

2007-06-13  Eric Christopher  <echristo@apple.com>

        * config/i386/i386.c (override_options): If we've specified
        an arch then don't use TARGET_SUBTARGET_ISA_DEFAULTs.

2007-06-13  Bob Wilson  <bob.wilson@acm.org>

        * df-scan.c (df_get_entry_block_def_set): Check if STATIC_CHAIN_REGNUM
        is defined.

2007-06-13  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (EH_RETURN_HANDLER_RTX): Use gen_frame_mem.
        * config/bfin/bfin.md (UNSPEC_VOLATILE_STORE_EH_HANDLER): New constant.
        (eh_store_handler): New pattern.
        (eh_return): Emit it instead of a plain move.

2007-06-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_init_mmx_sse_builtins)
        [__builtin_infq, __builtin_fabsq]: Define usign def_builtin.
        [__builtin_ia32_rsqrtps, __builtin_ia32_rsqrtss]: Define using
        def_builtin_const.

2007-06-13  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.c (gen_one_bundle): Delete unused local variables.
        (find_next_insn_start, find_load): New functions.
        (bfin_reorg): Use them to deal with the fact that parallel insns are
        no longer represented as a SEQUENCE.

2007-06-13  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * config/sparc/sparc.c (sparc_override_options): Initialize
        fpu mask correctly.

2007-06-13  Dave Korn  <dave.korn@artimi.com>

        * config/i386/i386.c (ix86_eax_live_at_start_p): Use
        df_get_live_out.

2007-06-13  Kazu Hirata  <kazu@codesourcery.com>

        * auto-inc-dec.c, c-incpath.c, config/c4x/libgcc.S,
        config/sh/divcost-analysis, dbgcnt.def, df-core.c,
        df-problems.c, df-scan.c, df.h, dominance.c, dse.c, regstat.c,
        tree-data-ref.c, tree-ssa-loop-im.c, tree-ssa-loop-prefetch.c,
        tree-vect-transform.c: Fix comment typos.  Follow spelling
        conventions.

2007-06-12  Seongbae Park  <seongbae.park@gmail.com>

       * df-scan.c (df_get_exit-block_use_set): Always add the stack pointer
       to the exit block use set.
       * gcse.c (cpro_jump): Don't emit barrier in cfglayout mode.
       * config/sparc/sparc.c (sparc_check_64): Check df != NULL.

2007-06-12  Seongbae Park  <seongbae.park@gmail.com>

        * opts.c (common_handle_option): Handle new option -fdbg-cnt-list.
        * dbgcnt.c (dbg_cnt_set_limit_by_name): Return value
        to indicate an error.
        (dbg_cnt_process_single_pair, dbg_cnt_list_all_counters): New functions
        (dbg_cnt_process_opt): Print an error on a bad argument.
        * dbgcnt.h (dbg_cnt_list_all_counters): New function declaration.
        * common.opt (-fdbg-cnt-list): New.
        * doc/invoke.texi (-fdbg-cnt-list,-fdbg-cnt=): New.

2007-06-12  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-alias.c (finalize_ref_all_pointers): Clear pt_anything
        flag on ref-all pointers.

2007-06-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31579
        * expr.c (expand_expr_addr_expr_1): Call expand_expr
        for the offset with the modifier as EXPAND_INITIALIZER
        if the modifier is EXPAND_INITIALIZER.
        (expand_expr_real_1 <case INTEGER_CST>): Don't force to
        a register if we had an overflow.

2007-06-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * real.c (real_isfinite): New.
        (real_sqrt): Use it.
        * real.h (real_isfinite): New.
        * builtins.c: Use it.

2007-06-12  Ian Lance Taylor  <iant@google.com>
            Daniel Berlin  <dberlin@dberlin.org>

        PR libstdc++/29286
        * tree.def: Add CHANGE_DYNAMIC_TYPE_EXPR.
        * tree.h (CHANGE_DYNAMIC_TYPE_NEW_TYPE): Define.
        (CHANGE_DYNAMIC_TYPE_LOCATION): Define.
        (DECL_NO_TBAA_P): Define.
        (struct tree_decl_common): Add no_tbaa_flag field.
        * tree-ssa-structalias.c (struct variable_info): Add
        no_tbaa_pruning field.
        (new_var_info): Initialize no_tbaa_pruning field.
        (unify_nodes): Copy no_tbaa_pruning field.
        (find_func_aliases): Handle CHANGE_DYNAMIC_TYPE_EXPR.
        (dump_solution_for_var): Print no_tbaa_pruning flag.
        (set_uids_in_ptset): Add no_tbaa_pruning parameter.  Change all
        callers.
        (compute_tbaa_pruning): New static function.
        (compute_points_to_sets): Remove CHANGE_DYNAMIC_TYPE_EXPR nodes.
        Call compute_tbaa_pruning.
        * tree-ssa-alias.c (may_alias_p): Test no_tbaa_flag for pointers.
        * gimplify.c (gimplify_expr): Handle CHANGE_DYNAMIC_TYPE_EXPR.
        * gimple-low.c (lower_stmt): Likewise.
        * tree-gimple.c (is_gimple_stmt): Likewise.
        * tree-ssa-operands.c (get_expr_operands): Likewise.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise.
        * tree-inline.c (estimate_num_insns_1): Likewise.
        (copy_result_decl_to_var): Likewise.
        * expr.c (expand_expr_real_1): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-inline.c (copy_decl_to_var): Copy DECL_NO_TBAA_P flag.
        * omp-low.c (omp_copy_decl_2): Likewise.
        * print-tree.c (print_node): Print DECL_NO_TBAA_P flag.
        * doc/c-tree.texi (Expression trees): Document
        CHANGE_DYNAMIC_TYPE_EXPR.

2007-06-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (fold_binary): Guard (X-X) -> 0 transformation
        with !HONOR_NANS and !HONOR_INFINITIES.
        * simplify-rtx.c (simplify_binary_operation_1): Likewise.

2007-06-12  Tristan Gingold  <gingold@adacore.com>

        * gcov.c: Comments updated.
        (source_info): Add file_time field.
        (source_index): New variable.
        (mutiple_files): New variable.
        (generate_results): New function extracted from process_file.
        (process_file): Save and restore chain of functions, generate
        results and free structures only if not merging results.
        (release_structures): File names are now freed in create_file_names
        (create_file_names): Free previous file names.
        (find_source): File date is now read here and modifications in
        source files is checked here.
        (read_graph_file): Only reverse order of functions for the current
        object file.
        (make_gcov_file_name): Do not generate long names if input_name is
        NULL.
        (output_lines): If merging results do not display graph, data and
        runs informations.
        Checking source file modification is done in find_source.

        * doc/gcov.texi: Append an s to sourcefile.

2007-06-12  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (UNSPEC_NOP): New constant.
        (forced_nop): New pattern.
        * config/bfin/bfin.c: Include "df.h".
        (add_to_reg): Use df_regs_ever_live_p instead of regs_ever_live.
        (bfin_discover_loop): Use df_get_live_in instead of
        global_live_at_start.
        (bfin_reorder_loops): Pass 0 to cfg_layout_initialize.  Call
        df_analyze when done.
        (gen_one_bundle): Don't generate SEQUENCE insns, just put modes on
        the insns.  Use QImode for the final insn in a bundle.  Call
        df_insn_rescan on generated NOPs; use gen_forced_nop instead of
        gen_nop.
        (reorder_var_tracking_notes): New function.
        (bfin_reorg): Pass no argument to split_all_insns.  Don't call
        update_life_info.  Call df_analyze after scheduling and bundle
        generation.  Call reorder_var_tracking_notes if generating these notes.
        Call df_finish_pass at the end.

2007-06-12  Dirk Mueller  <dmueller@suse.de>

        * optabs.c (debug_optab_libfuncs): fix gcc_assert to
        a comparison, not an assignment.

2007-06-12  Olivier Hainque  <hainque@adacore.com>

        * tree-nested.c (convert_local_reference): Handle VIEW_CONVERT_EXPR.
        Request walking the subtrees only, leaving the current is_lhs/val_only
        untouched.
        (convert_non_local_reference): Likewise.

2007-06-12  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k-devices.def (52221, 52223, 5253): New.

2007-06-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/15353
        PR tree-optimization/31657
        * passes.c (init_optimization_passes): Add pass_tree_ifcombine.
        * timevar.def: Add TV_TREE_IFCOMBINE.
        * tree-pass.h (pass_tree_ifcombine): Declare.
        * tree-ssa-ifcombine.c: New file.
        * tree-ssa-phiopt.c (blocks_in_phiopt_order): Export.
        * tree-flow.h (blocks_in_phiopt_order): Declare.
        * Makefile.in (OBJS-common): Add tree-ssa-ifcombine.o.
        (tree-ssa-ifcombine.o): New dependencies.

2007-06-12  Uros Bizjak  <ubizjak@gmail.com>

        PR rtl-optimization/32293
        * combine.c (simplify_if_then_else): Truncate return from
        nonzero_bits() to correct mode.

2007-06-12  Uros Bizjak  <ubizjak@gmail.com>

        * fold-const (fold_binary) [RDIV_EXPR]: Also optimize a/cbrt(b/c)
        into a*cbrt(c/b) if flag_unsafe_math_optimizations is set.

2007-06-11  Diego Novillo  <dnovillo@google.com>

        * Makefile.in (reload1.o-warn): Remove.

2007-06-11  Seongbae Park <seongbae.park@gmail.com>

        * combine.c (subst): Use reg_overlap_mentioned_p
        instead of comparing register numbers directly.

2007-06-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * reload1.c (mark_home_live_1): Use the mode parameter.

2007-06-11  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-scan.c (df_insn_delete, df_insn_rescan, df_insn_rescan_all,
        df_process_deferred_rescans, df_notes_rescan): Fixed spelling of
        word "deferred".
        * df-core.c: Ditto.

2007-06-11  Daniel Berlin  <dberlin@dberlin.org>

        * Merge dataflow-branch into mainline (see ChangeLog.dataflow)

2007-06-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md ("*movtf_internal): Penalize moves to and
        from integer registers.
        (FP mode splitters): Handle TFmode.

2007-06-11  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-structalias.c (find_what_p_points_to): Return false
        for ref-all pointers that point-to anything.

2007-06-11  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/arm.c (arm_output_dwarf_dtprel,
        TARGET_ASM_OUTPUT_DWARF_DTPREL): New.

2007-06-11  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (movdi_insn, movsi_insn, movv2hi_insn,
        movhi_insn, movqi_insn, movsf_insn, movdf_insn): Don't allow constant
        to memory moves.

2007-06-11  Rafael Avila de Espindola  <espindola@google.com>

        * gcc/tree.c (signed_or_unsigned_type_for): New.
        (unsigned_type_for): Use signed_or_unsigned_type_for.
        (signed_type_for): Use signed_or_unsigned_type_for.
        * gcc/tree.h (signed_or_unsigned_type_for): New.
        (get_signed_or_unsigned_type): Remove.
        * gcc/fold-const.c (fold_negate_expr): Use signed_type_for instead of
        lang_hooks.types.signed_type
        (size_diffop): Likewise.
        (all_ones_mask_p): Likewise.
        (build_range_check): Likewise.
        (fold_cond_expr_with_comparison): Likewise.
        (fold_cond_expr_with_comparison): Likewise.
        (unextend): Likewise.
        (extract_muldiv_1): Likewise.
        (fold_single_bit_test_into_sign_test): Likewise.
        (fold_binary): Likewise.
        (fold_ternary): Likewise.
        (operand_equal_for_comparison_p): Use signed_or_unsigned_type_for
        instead of get_signed_or_unsigned_type.
        * gcc/c-objc-common.h (LANG_HOOKS_SIGNED_TYPE): Remove.
        (LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): Remove.
        * gcc/expr.c (signed_or_unsigned_type_for): Use
        signed_or_unsigned_type_for instead of get_signed_or_unsigned_type.
        * gcc/langhooks.c (get_signed_or_unsigned_type): Remove.
        (lhd_signed_or_unsigned_type): Remove.
        * gcc/langhooks.h (lang_hooks_for_types): Remove signed_type and
        signed_or_unsigned_type.
        (lhd_signed_or_unsigned_type): Remove.
        * gcc/expmed.c (make_tree): Use signed_type_for instead of
        lang_hooks.types.signed_type.
        * gcc/c-common.c (same_scalar_type_ignoring_signedness): Use
        c_common_signed_type instead of lang_hooks.types.signed_type.
        (c_common_unsigned_type): New.
        (c_common_signed_type): Just call c_common_signed_or_unsigned_type.
        (shorten_compare): Use c_common_unsigned_type instead of
        c_common_signed_or_unsigned_type.
        (c_common_nodes_and_builtins): Use c_common_unsigned_type instead of
        unsigned_type_for.
        * gcc/convert.c (convert_to_integer): Use signed_type_for instead of
        lang_hooks.types.signed_type.
        * gcc/langhooks-def.h (LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): Remove.
        (LANG_HOOK_FOR_TYPES_INITIALIZER): Remove LANG_HOOKS_SIGNED_TYPE and
        LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE.
        * gcc/c-format.c (check_format_types): Use c_common_unsigned_type
        instead of unsigned_type_for.
        * gcc/c-decl.c (groakdeclarator): Likewise.
        * gcc/c-typeck.c (convert_for_assignment): Likewise.
        * gcc/c-common.h (c_common_unsigned_type): New.

2007-06-11  Uros Bizjak  <ubizjak@gmail.com>

        PR target/32280
        * config/i386/sse.md ("sse2_ashlti", "sse2_lshrti3"): Move ...
        * config/i386/i386.md ("sse2_ashlti", "sse2_lshrti3"): ... to here.

2007-06-11  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/32279
        * fold-const (fold_binary) [RDIV_EXPR]: Optimize a/sqrt(b/c)
        into a*sqrt(c/b) if flag_unsafe_math_optimizations is set.

2007-06-10  Jan Sjodin  <jan.sjodin@amd.com>
            Sebastian Pop  <sebpop@gmail.com>

        * lambda-code.c (remove_iv): New.
        (lambda_loopnest_to_gcc_loopnest): Use remove_iv.

2007-06-10  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-data-ref.c (dr_analyze_alias): Handle case smt is NULL.
        * tree-predcom.c (mark_virtual_ops_for_renaming): Exported.
        * tree-ssa-loop-prefetch.c: Include optabs.h.
        (FENCE_FOLLOWING_MOVNT): New macro.
        (struct mem_ref): Add independent_p and storent_p fields.
        (record_ref): Initalize the new fields.
        (gather_memory_references_ref): Return true if the reference
        could be analysed.
        (gather_memory_references): Check whether all memory accesses
        in loop were recorded.
        (should_issue_prefetch_p): Return false for nontemporal stores.
        (nontemporal_store_p, mark_nontemporal_store, emit_mfence_after_loop,
        may_use_storent_in_loop_p, mark_nontemporal_stores): New functions.
        (determine_loop_nest_reuse): Detect independent memory references.
        (loop_prefetch_arrays): Call mark_nontemporal_stores.
        * tree-flow.h (mark_virtual_ops_for_renaming): Declare.
        * Makefile.in (tree-ssa-loop-prefetch.o): Add OPTABS_H dependency.
        * config/i386/i386.h (x86_mfence): Declare.
        (FENCE_FOLLOWING_MOVNT): Return x86_mfence.
        * config/i386/i386.c (x86_mfence): New variable.
        (ix86_init_mmx_sse_builtins): Initialize x86_mfence.

        * tree-pretty-print.c (dump_generic_node): Mark nontemporal stores.
        * optabs.c (init_optabs): Initialize storent_optab.
        * optabs.h (enum optab_index): Add OTI_storent.
        (storent_optab): Declare.
        * genopinit.c (optabs): Add initialization for storent_optab.
        * tree.h (MOVE_NONTEMPORAL): New macro.
        * expr.c (expand_assignment, store_expr, store_constructor_field,
        store_constructor, store_field, expand_expr_real_1): Propagate
        nontemporality of the expanded store.
        (emit_storent_insn): New function.
        * expr.h (expand_assignment, store_expr): Declaration changed.
        * function.c (assign_parm_setup_reg): Pass false as nontemporality
        to expand_assignment.
        * stmt.c (expand_asm_expr): Ditto.
        * calls.c (initialize_argument_information): Pass false as
        nontemporality to store_expr.
        * config/i386/sse.md (storentv4sf, storentv2df, storentv2di,
        storentsi): New.

2007-06-09  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (set_uids_in_ptset): Add is_deref'd
        parameter, use it.
        (find_what_p_points_to): Pass new parameter to set_uids_in_ptset.

2007-06-09  Daniel Berlin  <dberlin@dberlin.org>

        * tree-data-ref.c (dr_may_alias_p): Check that decl_a != decl_b,
        and allow DECL_P here.

2007-06-09  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-scalar-evolution.c (follow_ssa_edge_in_rhs,
        follow_ssa_edge_in_condition_phi, follow_ssa_edge): Keep more precise
        track of the size of the expression.
        * cfghooks.c (merge_blocks): Remove block from loops structure only
        after call of the merge_blocks hook.

2007-06-09  Tom Tromey  <tromey@redhat.com>

        * c-decl.c (grokdeclarator): Added 'deprecated_state' argument.
        (deprecated_state): Removed.
        (start_decl): Update.
        (enum deprecated_states): Moved earlier.
        (groktypename): Update.
        (push_parm_decl): Likewise.
        (grokfield): Likewise.
        (start_function): Likewise.

2007-06-09  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/32169
        * tree-vrp.c (extract_range_from_unary_expr): For NOP_EXPR and
        CONVERT_EXPR, check whether min and max both converted to an
        overflow infinity representation.

2007-06-08  Eric Botcazou  <ebotcazou@adacore.com>

        * reload1.c (fixup_abnormal_edges): Clear bb field for insns
        not inserted on the edge.

2007-06-08  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm (__udivsi3): Use hardware divide
        instructions if they are supported.
        (__divsi3, __umodsi3, __modsi3): Likewise.
        (__ashldi3, __ashrdi3, __lshrdi3): New.
        * config/xtensa/t-xtensa (LIB1ASMFUNCS): Add DImode shift functions.

2007-06-08  Harsha Jagasia <harsha.jagasia@amd.com>
            Tony Linthicum <tony.linthicum@amd.com>

        * doc/extend.texi: Add fvect-cost-model flag.
        * common.opt (fvect-cost-model): New flag.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize inside and outside
        cost fields in stmt_vec_info struct for STMT.
        * tree-vectorizer.h (stmt_vec_info): Define inside and outside cost
        fields in stmt_vec_info struct and access functions for the same.
        (TARG_COND_BRANCH_COST): Define cost of conditional branch.
        (TARG_VEC_STMT_COST): Define cost of any vector operation, excluding
        load, store and vector to scalar operation.
        (TARG_VEC_TO_SCALAR_COST): Define cost of vector to scalar operation.
        (TARG_VEC_LOAD_COST): Define cost of aligned vector load.
        (TARG_VEC_UNALIGNED_LOAD_COST): Define cost of misasligned vector load.
        (TARG_VEC_STORE_COST): Define cost of vector store.
        (vect_estimate_min_profitable_iters): Define new function.
        * tree-vect-analyze.c (vect_analyze_operations): Add a compile-time
        check to evaluate if loop iterations are less than minimum profitable
        iterations determined by cost model or minimum vect loop bound defined
        by user, whichever is more conservative.
        * tree-vect-transform.c (vect_do_peeling_for_loop_bound): Add a
        run-time check to evaluate if loop iterations are less than minimum
        profitable iterations determined by cost model or minimum vect loop
        bound defined by user, whichever is more conservative.
        (vect_estimate_min_profitable_iterations): New function to estimate
        mimimimum iterartions required for vector version of loop to be
        profitable over scalar version.
        (vect_model_reduction_cost): New function.
        (vect_model_induction_cost): New function.
        (vect_model_simple_cost): New function.
        (vect_cost_strided_group_size): New function.
        (vect_model_store_cost): New function.
        (vect_model_load_cost): New function.
        (vectorizable_reduction): Call vect_model_reduction_cost during
        analysis phase.
        (vectorizable_induction): Call vect_model_induction_cost during
        analysis phase.
        (vectorizable_load): Call vect_model_load_cost during analysis phase.
        (vectorizable_store): Call vect_model_store_cost during analysis phase.
        (vectorizable_call, vectorizable_assignment, vectorizable_operation,
        vectorizable_promotion, vectorizable_demotion): Call
        vect_model_simple_cost during analysis phase.

2007-06-08  Simon Baldwin  <simonb@google.com>

        * reg-stack.c (get_true_reg): Readability change.  Moved default case
        label into direct switch statement scope.

2007-06-08  Simon Baldwin  <simonb@google.com>

        * tree-flow-inline.h (var_ann): Replaced erroneous '=' assignment
        in gcc_assert() with '==' comparison.

2007-06-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Merge TARGET_SSE4_2 and
        TARGET_ABM handling of x86_popcnt variable.

2007-06-08  Uros Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (X86 Built-in Functions): Document __builtin_fabsq,
        __builtin_copysignq and __builtin_infq built-in functions.

2007-06-08  Uros Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (X86 Built-in Functions): Add missing `@item's in
        SSE4.2 section.  Correct built-in function names in SSE4A section.

2007-06-08  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/32243
        * tree-vect-transform.c (vectorizable_type_promotion): Move check
        for ncopies after ratio check between nunits_out and nunits_in.
        (vectorizable_type_demotion): Remove single-use variable "scalar_type".

2007-06-08  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/32224
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Fail
        vectorization upon a non GIMPLE_MODIFY_STMT.

2007-06-08  Christian Bruel  <christian.bruel@st.com>

        PR target/29953
        * config/sh/sh.md (doloop_end): New pattern and splitter.
        * loop-iv.c (simple_rhs_p): Check for hardware registers.

2007-06-08  Zdenek Dvorak  <dvorakz@suse.cz>

        PR middle-end/32209
        * dominance.c (debug_dominance_tree, debug_dominance_tree_1): New
        functions.
        (verify_dominators): Do not change dominance tree.

2007-06-08  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/constraints.md: New file.
        * config/sh/sh.c: Include tm-constrs.h.
        (reg_class_from_letter): Remove.
        (prepare_cbranch_operands): Use satisfies_constraint_*
        function instead of macro.
        (andcosts, broken_move, sh_secondary_reload): Likewise.
        * config/sh/predicates.md (trapping_target_operand): Likewise.
        (and_operand, arith_operand, arith_reg_or_0_operand,
        cmp_operand, logical_operand, target_operand,
        ua_address_operand, ua_offset, xor_operand): Likewise.
        * config/sh/sh.md: Include constraints.md.
        (*movsicc_t_false): Use satisfies_constraint_* function
        instead of macro.
        (*movsicc_t_true, ashlsi3_std, ashlhi3_k, lshrsi3_m,
        lshrsi3_k, movsi_const_16bit+2, *movhi_media+1,
        movdi_const_16bit+1, beq, bne, *ptb): Likewise.
        * config/sh/sh.h (reg_class_from_letter): Remove prototype.
        (OVERRIDE_OPTIONS): Don't modify reg_class_from_letter.
        (REG_CLASS_FROM_CONSTRAINT): Remove.
        (CONSTRAINT_LEN, CONST_OK_FOR_I20, CONST_OK_FOR_I,
        CONST_OK_FOR_J, CONST_OK_FOR_K16, CONST_OK_FOR_K,
        CONST_OK_FOR_P27, CONST_OK_FOR_P, CONST_OK_FOR_M,
        CONST_OK_FOR_N, CONST_OK_FOR_CONSTRAINT_P,
        CONST_DOUBLE_OK_FOR_LETTER_P): Likewise.
        (SECONDARY_INOUT_RELOAD_CLASS): Use satisfies_constraint_*
        function instead of macro.
        (SECONDARY_INPUT_RELOAD_CLASS): Likewise.
        (EXTRA_CONSTRAINT_Q, EXTRA_CONSTRAINT_A,
        EXTRA_CONSTRAINT_Bsc, EXTRA_CONSTRAINT_B,
        EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Remove.
        (IS_PC_RELATIVE_LOAD_ADDR_P): New macro.
        (IS_LITERAL_OR_SYMBOLIC_S16_P): Likewise.
        (IS_LITERAL_OR_SYMBOLIC_U16_P): Likewise.
        (IS_NON_EXPLICIT_CONSTANT_P): Likewise.
        (EXTRA_CONSTRAINT_Csy, EXTRA_CONSTRAINT_Z, EXTRA_CONSTRAINT_W,
        EXTRA_CONSTRAINT_Cpg, EXTRA_CONSTRAINT_C,
        EXTRA_MEMORY_CONSTRAINT, EXTRA_CONSTRAINT_Sr0,
        EXTRA_CONSTRAINT_Sua, EXTRA_CONSTRAINT_S,
        EXTRA_CONSTRAINT_STR): Likewise.
        (GO_IF_LEGITIMATE_INDEX): Fix indentation.

2007-06-07  Geoffrey Keating  <geoffk@apple.com>

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

2007-06-07  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/30759
        * c-common.h (flag_cpp0x): Replaced by...
        (cxx_dialect): ... this new variable specifying the C++ dialect that
        is used.
        * c-common.c (flag_cpp0x): Removed.
        (cxx_dialect): Defined.
        * c-cppbuiltin.c (c_cpp_builtins): flag_cpp0x rewritten in terms of
        cxx_dialect.
        * c-opts.c (c_common_post_options): Likewise.
        (set_std_cxx98): Set cxx_dialect to cxx98.
        (set_std_cxx0x): Set cxx_dialect to cxx0x.

2007-06-07  Geoffrey Keating  <geoffk@apple.com>
            Hui-May Chang <hm.chang@apple.com>

        * doc/invoke.texi (Darwin Options): Update documentation for
        -mmacosx-version-min.
        * config.gcc (*-*-darwin*): Set extra_gcc_objs.
        * config/darwin-driver.c: New file.
        * config/darwin.h (GCC_DRIVER_HOST_INITIALIZATION): New.
        * config/t-darwin (darwin-driver.o): New rule.

        * config/darwin-c.c (version_as_macro): Ignore low digit.

2007-06-07  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (standard sse constant splitter): Handle TFmode.
        (negtf2, abstf2, *absnegtf2_sse): New insn patterns.
        (CSGNMODE): New mode macro.
        (CSGNVMODE): New mode attribute.
        (copysign<mode>3): Rename from copysingsf3 and copysigndf3.  Macroize
        expander using CSGNMODE mode macro.  Handle TFmode.
        (copysign<mode>3_const): Rename from copysignsf3_const and
        copysigndf3_const.  Macroize pattern using CSGNMODE mode macro.
        Handle TFmode.
        (copysign<mode>3_var): Rename from copysignsf3_var and
        copysigndf3_var.  Macroize pattern using CSGNMODE mode macro.
        Handle TFmode.
        (copysign<mode>3_var splitter): Macroize pattern using CSGNMODE
        mode macro.  Handle TFmode.
        * config/i386/sse.md (andtf3, *andtf3, *nandtf3): New insn patterns.
        (iortf3, *iortf3): Ditto.
        (xortf3, *xortf3): Ditto.
        * config/i386/i386.c (ix86_build_signbit_mask): Create scalar
        TFmode and TImode masks.
        (ix86_expand_copysign): Expand TFmode copysign insn.
        (IX86_BUILTIN_INFQ): New.
        (IX86_BUILTIN_FABSQ): Ditto.
        (IX86_BUILTIN_COPYSIGNQ): Ditto.
        (ix86_init_mmx_sse_builtins) [__builtin_infq]: New builtin definition.
        [__builtin_fabsq]: Ditto.
        [__builtin_copysignq]: Ditto.
        (ix86_expand_builtin) [IX86_BUILTIN_INFQ]: Expand builtin.
        [IX86_BUILTIN_FABSQ]: Expand builtin using ix86_expand_unop_builtin().
        [IX86_BUILTIN_COPYSIGNQ]: Expand builtin using
        ix86_expand_binop_builtin().

2007-06-07  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm: Clean up whitespace.

2007-06-07  Steve Ellcey  <sje@cup.hp.com>

        PR target/31850
        * rtl.h (push_to_sequence2): New.
        * emit-rtl.c (push_to_sequence2): New.
        * function.c (assign_parm_data_all): Add new fields.
        (assign_parm_setup_block): Call push_to_sequence2 instead of
        push_to_sequence.
        (assign_parm_setup_reg): Ditto.
        (assign_parm_setup_stack): Ditto.
        (assign_parms_unsplit_complex): Ditto.
        (assign_parms): Change field name.

2007-06-07  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/32220
        * tree-predcom.c (eliminate_temp_copies): Handle the case that loop
        phi node is reached before defining statement.

2007-06-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32231
        * tree-vect-transform.c (vectorizable_call): Call update_stmt
        after changing the right hand side of the assignment.

2007-06-06  Eric Christopher  <echristo@apple.com>

        * config.gcc (i?86-*-darwin*): Remove arch parameter.
        (x86_64-*-darwin*): Ditto.
        * config/i386/darwin.h (TARGET_SUBTARGET32_ISA_DEFAULT): Define.
        (TARGET_SUBTARGET64_ISA_DEFAULT): Ditto.

2007-06-06  Thomas Neumann  <tneumann@users.sourceforge.net>

        * tree-ssa-alias-warnings.c (maybe_add_match): Cast according to the
        coding conventions.
        (add_key): Likewise.
        * tree-ssa.c (init_tree_ssa): Use type safe memory macros.
        * tree-ssa-ccp.c (ccp_fold_builtin): Avoid using C++ keywords as
        variable names.
        * tree-ssa-coalesce.c (find_coalesce_pair): Use type safe memory macros.
        (add_cost_one_coalesce): Likewise.
        * tree-ssa-copy.c (merge_alias_info): Avoid using C++ keywords as
        variable names. Rename orig to orig_name for consistency.
        * tree-ssa-dom.c (dom_thread_across_edge): Cast according to the coding
        conventions.
        (cprop_into_successor_phis): Avoid using C++ keywords as variable names.
        (record_equivalences_from_stmt): Likewise.
        * tree-ssa-dse.c (dse_initialize_block_local_data): Cast according to
        the coding conventions.
        (memory_ssa_name_same): Likewise.
        (dse_optimize_stmt): Likewise.
        (dse_record_phis): Likewise.
        (dse_finalize_block): Likewise.
        * tree-ssa-loop-im.c (outermost_invariant_loop_expr): Avoid using C++
        keywords as variable names.
        (may_move_till): Cast according to the coding conventions.
        (force_move_till_expr): Avoid using C++ keywords as variable names.
        (force_move_till): Cast according to the coding conventions.
        (memref_hash): Likewise.
        (memref_eq): Likewise.
        (gather_mem_refs_stmt): Likewise.
        * tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Avoid using C++
        keywords as variable names.
        (idx_find_step): Cast according to the coding conventions.
        (idx_record_use): Likewise.
        (find_depends): Likewise.
        (prepare_decl_rtl): Likewise.
        (mbc_entry_hash): Likewise.
        (mbc_entry_eq): Likewise.
        * tree-ssa-loop-niter.c (SWAP): Use the correct the type for tmp.
        (simplify_replace_tree): Avoid using C++ keywords as variable names.
        (idx_infer_loop_bounds): Cast according to the coding conventions.
        * tree-ssa-loop-prefetch.c (idx_analyze_ref): Likewise.
        * tree-ssa-math-opts.c (occ_new ): Likwise.
        * tree-ssanames.c (duplicate_ssa_name_ptr_info): Use type safe memory
        macros.
        * tree-ssa-operands.c (add_def_op): Avoid using C++ keywords as variable
        names.
        (add_use_op): Likewise.
        (add_vop): Likewise.
        (add_vuse_op): Likewise.
        (add_vdef_op): Likewise.
        (get_expr_operands): Likewise.
        (push_stmt_changes): Use type safe memory macros.
        * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Avoid using C++
        keywords as variable names.
        (conditional_replacement): Likewise.
        (minmax_replacement): Likewise.
        (abs_replacement): Likewise.
        * tree-ssa-pre.c (create_expression_by_pieces): Cast according to the
        coding conventions.
        (insert_fake_stores): Avoid using C++ keywords as variable names.
        * tree-ssa-reassoc.c (add_to_ops_vec): Cast according to the coding
        conventions.
        * tree-ssa-structalias.c (heapvar_lookup): Likewise.
        (heapvar_insert): Use type safe memory macros.
        (new_var_info): Cast according to the coding conventions.
        (new_constraint): Likewise.
        (remove_preds_and_fake_succs): Use type safe memory macros.
        * tree-ssa-threadupdate.c (thread_block): Cast according to the coding
        conventions.
        (thread_single_edge): Likewise.
        (thread_through_loop_header): Likewise.

2007-06-06  Eric Christopher  <echristo@apple.com>

        * config/i386/i386.c (override_options): Move handling
        of TARGET_SUBTARGET* earlier.

2007-06-06  Paolo Bonzini  <bonzini@gnu.org>

        * genmodes.c (tagged_printf, emit_insn_modes_h): Don't
        use %n on printf.

2007-06-06  Zdenek Dvorak  <dvorakz@suse.cz>

        * haifa-sched.c (restore_bb_notes): Clear bb field of the notes
        emited outside of basic block.
        * cfgbuild.c (find_bb_boundaries): Clear bb field for insns between
        the created blocks.
        * rtl.h (delete_insn_chain): Declaration changed.
        * cfgrtl.c (delete_insn_chain): Add option to clear bb field for
        non-removed insns.
        (rtl_delete_block, rtl_merge_blocks): Pass true to delete_insn_chain.
        (delete_insn_chain_and_edges, try_redirect_by_replacing_jump,
        rtl_tidy_fallthru_edge, cfg_layout_merge_blocks): Pass false
        to delete_insn_chain.
        (rtl_verify_flow_info_1): Verify that the insns in header and footer
        do not have bb field set.
        (rtl_verify_flow_info): Verify that insns between basic blocks do not
        have bb field set.
        * recog.c (peephole2_optimize): Add argument to delete_insn_chain call.
        * cfgcleanup.c (try_optimize_cfg): Ditto.

2007-06-06  Thomas Neumann  <tneumann@users.sourceforge.net>

        * lambda-code.c (struct lambda_lattice_s): Add a name to the struct.
        (lambda_body_vector_new): Use type safe memory macros.
        (lambda_linear_expression_new): Likewise.
        (lambda_loopnest_new): Likewise.
        (lambda_lattice_new): Likewise.
        (replace_uses_equiv_to_x_with_y): Cast according to the coding
        conventions. Use type safe memory macros.
        * lambda.h (struct lambda_trans_matrix_s): Add a name to the struct.
        (lambda_body_vector_s): Likewise.
        * lambda-mat.c (lambda_matrix_new): Use type safe memory macros.
        * lambda-trans.c (lambda_trans_matrix_new): Likewise.

2007-06-06  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_into_cond): Return 2
        if we need to schedule cfg_cleanup.
        (tree_ssa_forward_propagate_single_use_vars): Do so.

2007-06-06  Ian Lance Taylor  <iant@google.com>

        * fold-const.c (merge_ranges): If range_successor or
        range_predecessor fail, just return 0.

2007-06-06  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/32216
        * tree-vectorizer.c (supportable_widening_operation): Determine
        signedness of FIX_TRUNC_EXPR from output operand.
        (supportable_narrowing_operation): Ditto.
        * tree-vect-generic.c (expand_vector_operations_1): Determine
        signedness of VEC_UNPACK_FLOAT_HI_EXPR and VEC_UNPACK_FLOAT_LO_EXPR
        from input operand.

2007-06-06  Thomas Neumann  <tneumann@users.sourceforge.net>

        * config/i386/i386.c (enum pta_flags): Move out of struct scope...
        (struct pta): ...from here. Change flags to unsigned to avoid
        excessive casting (as it is used as a bit mask).
        (override_options): Add casts according to the coding convenventions.
        (x86_64_elf_unique_section): Likewise.
        (examine_argument): Avoid using C++ keywords as variable names.
        (construct_container): Likewise.
        (legitimize_pic_address): Likewise.
        (get_dllimport_decl): Cast according to the coding conventions. Use
        type safe memory macros.
        (legitimize_address): Cast according to the coding conventions.
        (emit_i387_cw_initialization): Corrected the type of slot to enum
        ix86_stack_slot.
        (ix86_init_machine_status): Use type safe memory macros.
        (bdesc_pcmpestr): Use UNKNOWN instead of integer 0.
        (bdesc_pcmpistr): Likewise.
        (bdesc_crc32): Likewise.
        (bdesc_sse_3arg): Likewise.
        (bdesc_2arg): Likewise.
        (bdesc_1arg): Likewise.
        (ix86_expand_sse_pcmpestr): Cast according to the coding conventions.
        (ix86_expand_sse_pcmpistr): Likewise.
        (ix86_expand_vec_set_builtin): Use EXPAND_NORMAL instead of integer 0.
        (ix86_builtin_vectorized_function): Change the type of fn to unsigned
        int to match the langhook definition.
        (ix86_builtin_conversion): Change the type of code to unsigned init to
        match the langhook definition.
        (ix86_preferred_reload_class): Avoid using C++ keywords as variable
        names.
        (ix86_preferred_output_reload_class): Likewise.
        (ix86_cannot_change_mode_class): Likewise.
        (ix86_memory_move_cost): Likewise.
        (ix86_rtx_costs): Cast the outer_code parameter to enum rtx_code to
        avoid excessive casting later on.
        (x86_output_mi_thunk): Avoid using C++ keywords as variable names.

2007-06-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (sse4_2_pcmpestr_cconly): Prefer pcmpestrm
        as flags setting insn.
        (sse4_2_pcmpistr_cconly): Prefer pcmpistrm as flags setting insn.

2007-06-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (UNSPEC_ROUNDP, UNSPEC_ROUNDS): Remove.
        (UNSPEC_ROUND): New.
        ("sse4_1_round<mode>2"): New insn pattern.
        ("rint<mode>2"): Expand using "sse4_1_round<mode>2" pattern for
        SSE4.1 targets.
        ("floor<mode>2"): Rename from floordf2 and floorsf2.  Macroize
        expander using SSEMODEF mode macro.  Expand using
        "sse4_1_round<mode>2" pattern for SSE4.1 targets.
        ("ceil<mode>2"): Rename from ceildf2 and ceilsf2.  Macroize
        expander using SSEMODEF mode macro.  Expand using
        "sse4_1_round<mode>2" pattern for SSE4.1 targets.
        ("btrunc<mode>2"): Rename from btruncdf2 and btruncsf2.  Macroize
        expander using SSEMODEF mode macro.  Expand using
        "sse4_1_round<mode>2" pattern for SSE4.1 targets.
        * config/i386/sse.md ("sse4_1_roundpd", "sse4_1_roundps"): Use
        UNSPEC_ROUND instead of UNSPEC_ROUNDP.
        ("sse4_1_roundsd", "sse4_1_roundss"): Use UNSPEC_ROUND instead of
        UNSPEC_ROUNDS.

2007-06-06  Jan Sjodin  <jan.sjodin@amd.com>
            Sebastian Pop  <sebpop@gmail.com>

        * lambda.h (build_linear_expr): New.
        * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression):
        Use build_linear_expr, call fold and force_gimple_operand.
        (lambda_loopnest_to_gcc_loopnest): Check that there is
        something to insert.
        * testsuite/gcc.dg/tree-ssa/ltrans-6.c: New.

2007-06-05  Joerg Wunsch  <j.gnu@uriah.heep.sax.de>

        PR preprocessor/23479
        * doc/extend.texi: Document the 0b-prefixed binary integer
        constant extension.

2007-06-05  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/32215
        * tree-vectorizer.c (supportable_widening_operation): Return false
        for unsupported FIX_TRUNC_EXPR tree code.
        (supportable_narrowing_operation): Ditto for FLOAT_EXPR tree code.

2007-06-06  Nathan Froyd  <froydnj@codesourcery.com>

        * config/rs6000/rs6000.h (FIXED_SCRATCH): Use r0 as a scratch
        register on SPE targets.  Change documentation to reflect
        reality.
        * config/rs6000/rs6000.c (rs6000_conditional_register_usage):
        Change FIXED_SCRATCH to 14 and document why we're keeping r14
        out of the register allocation pool.
        (rs6000_reg_live_or_pic_offset_p): New function.
        (rs6000_emit_prologue): Move the actual saving of LR up to free
        r0 for holding r11.  Split saving of SPE 64-bit registers into
        its own case.  Ensure that offsets will always be in-range for
        'evstdd' by using r11 as a scratch register to point at the start
        of the SPE save area.  Save r11 if necessary, as it is the static
        chain register.
        (rs6000_emit_epilogue): Split restoring of SPE 64-bit registers
        into its own case.  Ensure that offsets will always be in-range
        for 'evldd' by using r11 as a scratch register to point at the
        start of the SPE save area.  Also adjust r11 when restoring
        the stack pointer to compensate for pre-loading r11.

2007-06-05  Thomas Neumann  <tneumann@users.sourceforge.net>

        * cfg.c (init_flow): Use type safe memory macros.
        (alloc_block): Likewise.
        (unchecked_make_edge): Likewise.
        (dump_flow_info): Avoid using C++ keywords as variable names.
        (copy_original_table_clear): Cast according to the coding conventions.
        (copy_original_table_set): Likewise.
        * cfgexpand (label_rtx_for_bb): Likewise.
        (expand_gimple_basic_block): Likewise.
        * cfghooks.c (dump_bb): Likewise.
        (lv_adjust_loop_header_phi): Avoid using C++ keywords as
        variable names.
        (lv_add_condition_to_bb): Likewise.
        * cfglayout (relink_block_chain): Cast according to the coding
        conventions.
        (fixup_reorder_chain): Likewise.
        (fixup_fallthru_exit_predecessor): Likewise.
        * cfgloop.c (glb_enum_p): Likewise.
        (get_exit_description): Likewise.
        (dump_recorded_exit): Likewise.
        * cfgloop.h (enum loop_estimation): Move out of struct scope...
        (struct loop): ... from here.
        * cfgloopmanip.c (rpe_enum_p): Cast according to the coding
        conventions.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        (rtl_split_block): Likewise.
        (rtl_dump_bb): Likewise.
        (cfg_layout_split_block): Likewise.
        (init_rtl_bb_info): Use typesafe memory macros.

        * graphds.h (struct graph_edge): Renamed edge to graph_edge.
        * graphds.h: Updated all usages of edge to graph_edge.
        * graphds.c: Likewise.
        * cfgloopanal.c: Likewise.

2007-06-05  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (compare_values_warnv): Check TREE_NO_WARNING on a
        PLUS_EXPR or MINUS_EXPR node before setting *strict_overflow_p.
        (extract_range_from_assert): Set TREE_NO_WARNING when creating an
        expression.
        (test_for_singularity): Likewise.

2007-06-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/constraints.md ("Y2"): Replaced by ...
        ("Yt"): This.
        * config/i386/i386.md: Likewise.
        * config/i386/mmx.md: Likewise.
        * config/i386/sse.md: Likewise.

2007-06-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/constraints.md ("z"): Replaced by ...
        ("Y0"): This.
        * config/i386/sse.md (sse4_1_blendvpd): Likewise.
        (sse4_1_blendvps): Likewise.
        (sse4_1_pblendvb): Likewise.
        (sse4_2_pcmpestr): Likewise.
        (sse4_2_pcmpestrm): Likewise.
        (sse4_2_pcmpestr_cconly): Likewise.
        (sse4_2_pcmpistr): Likewise.
        (sse4_2_pcmpistrm): Likewise.
        (sse4_2_pcmpistr_cconly): Likewise.

2007-06-05  Razya Ladelsky  <razya@il.ibm.com>

        * matrix-reorg.c (transform_access_sites): Fix computation.
        (transform_allocation_sites): Same.

2007-06-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Use
        TARGET_SUBTARGET32_ISA_DEFAULT to select default ix86_isa_flags.

2007-06-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/predicates.md (reg_not_xmm0_operand): New predicate.
        (nonimm_not_xmm0_operand): Ditto.
        * config/i386/sse.md ("sse4_1_blendvpd"): Use "reg_not_xmm0_operand"
        as operand[0] and operand[1] predicate.  Use "nonimm_not_xmm0_operand"
        as operand[2] predicate.  Require "z" class XMM register for
        operand[3].  Adjust asm template.
        ("sse4_1_blendvpd"): Ditto.
        ("sse4_1_pblendvb"): Ditto.
        * config/i386/i386.c (ix86_expand_sse_4_operands_builtin): Do not
        force op2 into xmm0 register for variable blend instructions.

2007-06-04  Tom Tromey  <tromey@redhat.com>

        * c-tree.h (start_enum): Update.
        (build_enumerator): Likewise.
        * c-decl.c (enum_next_value): Removed.
        (enum_overflow): Likewise.
        (start_enum): Add c_enum_contents argument.  Don't use globals.
        (build_enumerator): Likewise.
        * c-tree.h (struct c_enum_contents): New struct.

2007-06-04  Tom Tromey  <tromey@redhat.com>

        * c-common.c (c_common_get_alias_set): Fix indentation.

2007-06-04  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (adjust_range_with_scev): When loop is not expected
        to overflow, reduce overflow infinity to regular infinity.
        (vrp_var_may_overflow): New static function.
        (vrp_visit_phi_node): Check vrp_var_may_overflow.

2007-06-04  Kazu Hirata  <kazu@codesourcery.com>

        * stor-layout.c (layout_type): Remove duplicate code.

2007-06-04  Uros Bizjak  <ubizjak@gmail.com>

        PR c/32191
        * gcc/c-common.c (c_define_builtins): Call targetm.init_builtins ()
        before build_common_builtin_nodes ().

2007-06-04  Steve Ellcey  <sje@cup.hp.com>

        PR target/31733
        * cfgrtl.c (rtl_verify_flow_info): Skip notes when looking for barrier.

2007-06-04  Jan Hubicka  <jh@suse.cz>

        * tree-predcom.c (replace_ref_with, initialize_root_vars_lm,
        reassociate_to_the_same_stmt): Call build_gimple_modify_stmt
        instead of _stat version.

2007-06-03  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/32194
        * tree-predcom.c (determine_offset): Check that both references have
        the same type.

2007-06-03  Zdenek Dvorak  <dvorakz@suse.cz>

        * cfgloopmanip.c (remove_path, loopify, duplicate_loop_to_header_edge):
        Change dom_bbs to vector.  Add argument to iterate_fix_dominators call.
        * loop-unroll.c (unroll_loop_runtime_iterations): Ditto.
        * tree-cfg.c (tree_duplicate_sese_region): Change doms to vector.
        Add argument to iterate_fix_dominators call.
        (remove_edge_and_dominated_blocks): Pass vector to bbs_to_fix_dom.
        * gcse.c (hoist_code): Change domby to vector.
        * cfghooks.c (make_forwarder_block): Change doms_to_fix to vector.
        Add argument to iterate_fix_dominators call.
        * loop-doloop.c (doloop_modify): Changed recount_dominator to
        recompute_dominator.
        * lambda-code.c (perfect_nestify): Ditto.
        * cfgloopanal.c: Include graphds.h.
        (struct edge, struct vertex, struct graph, dump_graph, new_graph,
        add_edge, dfs, for_each_edge, free_graph): Moved to graphds.c.
        (mark_irreducible_loops): Use graphds_scc.  Remove argument from
        add_edge call.
        * graphds.c: New file.
        * graphds.h: New file.
        * dominance.c: Include vecprim.h, pointer-set.h and graphds.h.
        (get_dominated_by, get_dominated_by_region): Change return type to
        vector.
        (verify_dominators): Recompute all dominators and compare the results.
        (recount_dominator): Renamed to ...
        (recompute_dominator): ... this.  Do not check that the block is
        dominated by entry.
        (iterate_fix_dominators): Reimplemented.
        (prune_bbs_to_update_dominators, root_of_dom_tree,
        determine_dominators_for_sons): New functions.
        * et-forest.c (et_root): New function.
        * et-forest.h (et_root): Declare.
        * Makefile.in (graphds.o): Add.
        (cfgloopanal.o): Add graphds.h dependency.
        (dominance.o): Add graphds.h, vecprim.h and pointer-set.h dependency.
        * basic-block.h (get_dominated_by, get_dominated_by_region,
        iterate_fix_dominators): Declaration changed.
        (recount_dominator): Renamed to ...
        (recompute_dominator): ... this.
        * tree-ssa-threadupdate.c (thread_block): Free dominance info.
        (thread_through_all_blocks): Do not free dominance info.

2007-06-03  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.c (override_options): Don't override
        REAL_MODE_FORMAT.
        * config/m68k/m68k-modes.def (SF, DF): Define to use
        motorola_single_format and motorola_double_format, resp.
        * real.c (motorola_single_format): Renamed from
        coldfire_single_format.
        (motorola_double_format): Renamed from coldfire_double_format.
        (encode_ieee_extended): Generate a proper canonical NaN image
        respecting canonical_nan_lsbs_set.
        (ieee_extended_motorola_format): Set canonical_nan_lsbs_set to
        true.
        * real.h: Adjust declarations.

2007-06-03  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/32163
        * config/sh/sh.md (symGOT_load): Don't schedule insns when
        the symbol is generated with the stack protector.

2007-06-03  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (m68k_attribute_table): Add "interrupt".
        (m68k_get_function_kind): Return m68k_fk_interrupt_handler on
        "interrupt".
        * doc/extend.texi (interrupt): Mention m68k.

2007-06-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_expand_sse_4_operands_builtin): Call
        safe_vector_operand() if input operand is VECTOR_MODE_P operand.
        (ix86_expand_sse_pcmpestr): Do not check operands for
        "register_operand", when insn operand predicate is "register_operand".
        (ix86_expand_sse_pcmpistr): Ditto.

2007-06-02  H.J. Lu  <hongjiu.lu@intel.com>
            Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (enum reg_class) [SSE_FIRST_REG]: New.
        (SSE_CLASS_P): Use reg_class_subset_p between SSE_REGS.
        (REG_CLASS_NAMES): Add "FIRST_SSE_REG" string.
        (REG_CLASS_CONTENTS): Add members of FIRST_SSE_REG class.
        * config/i386/constraints.md ("z"): New register constraint
        for members of SSE_FIRST_REG class.
        * config/i386/i386-modes.def (CCA, CCC, CCO, CCS): New compare modes.
        * config/i386/i386.c (regclass_map): Change class of %xmm0 to
        SSE_FIRST_REG class.
        (put_condition_code) [EQ, NE]: Output suffixes for new compare modes.
        (ix86_cc_modes_compatible): Handle CCA, CCC, CCO and CCS modes.
        (IX86_BUILTIN_PCMPESTRI128): New for SSE4.2.
        (IX86_BUILTIN_PCMPESTRM128): Likewise.
        (IX86_BUILTIN_PCMPESTRA128): Likewise.
        (IX86_BUILTIN_PCMPESTRC128): Likewise.
        (IX86_BUILTIN_PCMPESTRO128): Likewise.
        (IX86_BUILTIN_PCMPESTRS128): Likewise.
        (IX86_BUILTIN_PCMPESTRZ128): Likewise.
        (IX86_BUILTIN_PCMPISTRI128): Likewise.
        (IX86_BUILTIN_PCMPISTRM128): Likewise.
        (IX86_BUILTIN_PCMPISTRA128): Likewise.
        (IX86_BUILTIN_PCMPISTRC128): Likewise.
        (IX86_BUILTIN_PCMPISTRO128): Likewise.
        (IX86_BUILTIN_PCMPISTRS128): Likewise.
        (IX86_BUILTIN_PCMPISTRZ128): Likewise.
        (struct builtin_description): Change "flag" field to unsigned.
        (bdesc_pcmpestr): New builtin description table.
        (bdesc_pcmpistr): Likewise.
        (ix86_init_mmx_sse_builtins): Define int_ftype_v16qi_int_v16qi_int_int,
        v16qi_ftype_v16qi_int_v16qi_int_int and int_ftype_v16qi_v16qi_int.
        Initialize pcmp[ei]str[im] insns for SSE4.2.
        (ix86_expand_sse_pcmpestr): New subroutine of ix86_expand_builtin.
        (ix86_expand_sse_pcmpistr): Likewise.
        (ix86_expand_builtin): Expand pcmp[ei]str[im] builtins for SSE4.2.
        * config/i386/i386.md (UNSPEC_PCMPESTR): New for SSE4.2.
        (UNSPEC_PCMPISTR): Likewise.
        * config/i386/sse.md (sse4_2_pcmpestr): New insn patern and splitter.
        (sse4_2_pcmpestri):New isns pattern.
        (sse4_2_pcmpestrm): Likewise.
        (sse4_2_pcmpestr_cconly): Likewise.
        (sse4_2_pcmpistr): New insn patern and splitter.
        (sse4_2_pcmpistri):New isns pattern.
        (sse4_2_pcmpistrm): Likewise.
        (sse4_2_pcmpistr_cconly): Likewise.
        * config/i386/smmintrin.h: Enable pcmp[ei]str[im] intrinsics
        in SSE4.2.

2007-06-01  David Daney  <ddaney@avtrex.com>

        * config/mips/mips.c (mips_output_mi_thunk): Only load gp if not
        LOADGP_ABSOLUTE and not binds_local_p.

2007-06-01  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Pass -fpie through to the linker.

2007-06-01  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (compare_name_with_value): Always set
        used_strict_overflow if we get a result from the variable itself.

2007-06-01  Ian Lance Taylor  <iant@google.com>

        PR rtl-optimization/31455
        * lower-subreg.c (find_decomposable_subregs): Don't decompose
        subregs which have a cast between modes which are not tieable.

2007-06-01  Uros Bizjak  <ubizjak@gmail.com>

        * expr.c (force_operand) [DIV, MOD, UDIV, UMOD, ASHIFTRT]: Remove
        breaks after return statements.

2007-06-01  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (fpscr_set_from_mem): Call get_free_reg
        only after no_new_pseudos.

2007-05-31  Eric Christopher  <echristo@apple.com>

        * expr.c (convert_move): Assert that we don't have a BLKmode
        operand.
        (store_expr): Handle BLKmode moves by calling emit_block_move.

2007-05-31  Daniel Berlin  <dberlin@dberlin.org>

        * c-typeck.c (build_indirect_ref): Include type in error message.
        (build_binary_op): Pass types to binary_op_error.
        * c-common.c (binary_op_error): Take two type arguments, print out
        types with error.
        * c-common.h (binary_op_error): Update prototype.

2007-05-31  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c: Correct coments on -mno-sse4.

2007-05-31  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc (i[34567]86-*-*): Add nmmintrin.h to extra_headers.
        (x86_64-*-*): Likewise.
        * config/i386/i386.c (OPTION_MASK_ISA_MMX_UNSET): New.
        (OPTION_MASK_ISA_3DNOW_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE2_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE3_UNSET): Likewise.
        (OPTION_MASK_ISA_SSSE3_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4_1_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4_2_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4): Likewise.
        (OPTION_MASK_ISA_SSE4_UNSET): Likewise.
        (OPTION_MASK_ISA_SSE4A_UNSET): Likewise.
        (ix86_handle_option): Use OPTION_MASK_ISA_*_UNSET.  Handle SSE4.2.
        (override_options): Support SSE4.2.
        (ix86_build_const_vector): Support SImode and DImode.
        (ix86_build_signbit_mask): Likewise.
        (ix86_expand_int_vcond): Support V2DImode.
        (IX86_BUILTIN_CRC32QI): New for SSE4.2.
        (IX86_BUILTIN_CRC32HI): Likewise.
        (IX86_BUILTIN_CRC32SI): Likewise.
        (IX86_BUILTIN_CRC32DI): Likewise.
        (IX86_BUILTIN_PCMPGTQ): Likewise.
        (bdesc_crc32): Likewise.
        (bdesc_sse_3arg): Likewise.
        (ix86_expand_crc32): Likewise.
        (ix86_init_mmx_sse_builtins): Support SSE4.2.
        (ix86_expand_builtin): Likewise.
        * config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Define
        __SSE4_2__ for -msse4.2.
        * config/i386/i386.md (UNSPEC_CRC32): New for SSE4.2.
        (CRC32MODE): Likewise.
        (crc32modesuffix): Likewise.
        (crc32modeconstraint): Likewise.
        (sse4_2_crc32<mode>): Likewise.
        (sse4_2_crc32di): Likewise.
        * config/i386/i386.opt (msse4.2): New for SSE4.2.
        (msse4): Likewise.
        * config/i386/nmmintrin.h: New. The dummy SSE4.2 intrinsic header file.
        * config/i386/smmintrin.h: Add SSE4.2 intrinsics.
        * config/i386/sse.md (sse4_2_gtv2di3): New pattern for SSE4.2.
        (vcond<mode>): Use SSEMODEI instead of SSEMODE124.
        (vcondu<mode>): Likewise.
        * doc/extend.texi: Document SSE4.2 built-in functions.
        * doc/invoke.texi: Document -msse4.2/-msse4.

2007-05-31  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/32160
        * tree-predcom.c (predcom_tmp_var): New function.  Mark created
        variable as gimple reg.
        (initialize_root_vars, initialize_root_vars_lm): Use predcom_tmp_var.

2007-05-31  Kazu Hirata  <kazu@codesourcery.com>

        * gcc.c (main): Don't consider linker options when issuing the
        warning about a linker input file not being used.

2007-05-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * tree-vrp.c (compare_names): Initialize sop.

2007-05-30  Dirk Mueller  <dmueller@suse.de>

        * cgraphunit.c (cgraph_analyze_function): Remove
        computation of inline parameters.

2007-05-30  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/darwin.h (TARGET_SUBTARGET_DEFAULT): Undef before define.

2007-05-30  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (arm-wrs-vxworks): Remove dbxelf.h from tm_file.
        Add vx-common.h.  Include vxworks.h between vx-common.h and
        arm/vxworks.h.
        * config/vx-common.h (DWARF2_UNWIND_INFO): Undefine before
        redefining.
        * config/vxworks.h (TARGET_ASM_CONSTRUCTOR): Likewise.
        (TARGET_ASM_DESTRUCTOR): Likewise.
        * config/arm/vxworks.h (TARGET_OS_CPP_BUILTINS): Check arm_arch_xscale
        instead of arm_is_xscale.  Use VXWORKS_OS_CPP_BUILTINS.
        (OVERRIDE_OPTIONS, SUBTARGET_CPP_SPEC): Define.
        (CC1_SPEC): Add -tstrongarm.  Line up backslashes.
        (VXWORKS_ENDIAN_SPEC): Define.
        (ASM_SPEC): Add VXWORKS_ENDIAN_SPEC.
        (LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Redefine to their
        VXWORKS_* equivalents.
        (LINK_SPEC): Likewise, but add VXWORKS_ENDIAN_SPEC.
        (ASM_FILE_START): Delete.
        (TARGET_VERSION): Reformat.
        (FPUTYPE_DEFAULT, FUNCTION_PROFILER): Define.
        (DEFAULT_STRUCTURE_SIZE_BOUNDARY): Define.
        * config/arm/t-vxworks (LIB1ASMSRC, LIB1ASMFUNCS): Define.
        (FPBIT, DPBIT): Define.
        (fp-bit.c, dp-bit.c): New rules.
        (MULTILIB_OPTIONS): Add strongarm, -mrtp and -mrtp/-fPIC multilibs.
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Define.
        * config/arm/arm-protos.h (arm_emit_call_insn): Declare.
        * config/arm/arm.h: Include vxworks-dummy.h.
        * config/arm/arm.c (arm_elf_asm_constructor, arm_elf_asm_destructor):
        Mark with ATTRIBUTE_UNUSED.
        (arm_override_options): Do not allow VxWorks RTP PIC to be used
        for Thumb.  Force r9 to be the PIC register for VxWorks RTPs and
        make it incompatible with -msingle-pic-base.
        (arm_function_ok_for_sibcall): Return false for calls that might
        go through a VxWorks PIC PLT entry.
        (require_pic_register): New function, split out from...
        (legitimize_pic_address): ...here.  Do not use GOTOFF accesses
        for VxWorks RTPs.
        (arm_load_pic_register): Handle the VxWorks RTP initialization
        sequence.  Use pic_reg as a shorthand for cfun->machine->pic_reg.
        (arm_emit_call_insn): New function.
        (arm_assemble_integer): Do not use GOTOFF accesses for VxWorks RTP.
        * config/arm/arm.md (UNSPEC_PIC_OFFSET): New unspec number.
        (pic_offset_arm): New pattern.
        (call, call_value): Use arm_emit_call_insn.
        (call_internal, call_value_internal): New expanders.
        * config/arm/lib1funcs.asm (__PLT__): Define to empty for
        VxWorks unless __PIC__.

2007-05-30  Eric Christopher  <echristo@gmail.com>

        * genrecog.c: Include regs.h in generated file.
        * genemit.c: Ditto. Fix up formatting.
        * config/mn10300/constraints.md: New.
        * config/mn10300/mn10300.md: Include.
        * config/mn10300/mn10300.c(mn10300_secondary_reload_class):
        Fix up for removed macro.
        * config/mn10300/predicates.md (call_address_operand):  Ditto.
        * config/mn10300/mn10300.h (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_I): Ditto.
        (CONST_OK_FOR_J): Ditto.
        (CONST_OK_FOR_K): Ditto.
        (CONST_OK_FOR_L): Ditto.
        (CONST_OK_FOR_M): Ditto.
        (CONST_OK_FOR_N): Ditto.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Ditto.
        (OK_FOR_Q): Ditto.
        (OK_FOR_R): Ditto.
        (OK_FOR_T): Ditto.
        (EXTRA_CONSTRAINT): Ditto.

2007-05-30 Uros Bizjak <ubizjak@gmail.com>

        * config/i386/i386.h (MASK_64BIT, MASK_MMX, MASK_3DNOW*, MASK_SSE*):
        Remove defines.
        * config/i386/biarch.h (TARGET_64BIT_DEFAULT): Define to
        OPTION_MASK_ISA_64BIT.
        * config/i386/i386.c: Rename MASK_* macros to OPTION_MASK_ISA_*.

2007-05-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/32152
        * gimplify.c (gimplify_omp_atomic_pipeline): Use correct
        types for comparison.
        * fold-const.c (fold_comparison): Call maybe_canonicalize_comparison
        with original typed arguments.
        * config/i386/i386.c (ix86_gimplify_va_arg): Fix type mismatches.

2007-05-30  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/31769
        * except.c (duplicate_eh_regions): Clear prev_try if
        ERT_MUST_NOT_THROW region is inside of ERT_TRY region.

2007-05-30  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-scalar-evolution.c (scev_const_prop): Do not create labels.
        * tree-ssa-sink.c (statement_sink_location): Return basic block and
        bsi of the location where statements should be inserted.
        (sink_code_in_bb): Take bsi from statement_sink_location.
        * lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use bsi_after_labels
        instead of bsi_start.
        * tree-profile.c (tree_gen_ic_func_profiler): Pass BSI_NEW_STMT to
        bsi_insert_after.
        * tree-cfg.c (bsi_move_after): Pass BSI_NEW_STMT to bsi_insert_after.
        (bsi_move_before): Document inconsistency with bsi_move_after.
        (tree_redirect_edge_and_branch): Do not create labels if not necessary.

2007-05-30 Uros Bizjak <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_ABM): New define.
        (TARGET_POPCNT): Ditto.
        (TARGET_64BIT, TARGET_MMX, TARGET_3DNOW, TARGET_3DNOW_A, TARGET_SSE*):
        New temporary defines to redefine from OPTION_ISA_* defines.
        (MASK_64BIT, MASK_MMX, MASK_3DNOW, MASK_3DNOW_A, MASK_SSE*):
        New temporary defines to redefine from OPTION_MASK_ISA_* defines.
        (ix86_isa_flags): New extern int declaration.
        (TARGET_SUBTARGET_DEFAULT): New define.
        (TARGET_SUBTARGET_ISA_DEFAULT): Ditto.
        (TARGET_SUBTARGET32_DEFAULT): Ditto.
        (TARGET_SUBTARGET32_ISA_DEFAULT): Ditto.
        (TARGET_SUBTARGET64_ISA_DEFAULT): Ditto.
        * config/i386/unix.h: Undef TARGET_SUBTARGET_DEFAULT before define.
        * config/i386/darwin.h: Change TARGET_64BIT define to
        OPTION_ISA_64BIT.

        * config/i386/i386.opt (m3dnowa): Define as undocumented option
        using existing "ix86_isa_flags" varible.
        (m32, m64): Use existing "ix86_isa_flags" variable.
        (mmmx, m3dnow): Ditto.
        (msse, msse2, msse3, mssse3, msse4.1, msse4a): Ditto.
        (mabm): Define as non-negative option using "x86_abm" variable.
        (mpopcnt): Define as non-negative option using "x86_popcnt" variable.

        * config/i386/i386.c (ix86_arch_features) [X86_ARCH_CMOVE]:
        Rewrite feature test bitmap.
        (ix86_isa_flags): New initialized global int varible.
        (ix86_isa_flags_explicit): New static int variable.
        (ix86_handle_option): Set "ix86_isa_flags_explicit" when mmmx, m3dnow,
        msse, msse2, msse3, msse4.1 and msse4a option is processed.  Change
        i86_isa_flags and ix86_isa_flags_explicit, not target_flags and
        target_flags_explicit.
        (override_options): Remove "target_enable" and "target_disable" fields
        from "struct ptt". Update processor_target_table accordingly. Remove
        PTA_PREFETCH_SSE from processor_alias_table entry if PTE_SSE is
        defined and rearrange PTA_* bits.  Use "ix86_isa_flags" instead of
        "target_flags" and "ix86_isa_flags_explicit" instead of
        "target_flags_explicit" when masked with MASK_64BIT, MASK_MMX,
        MASK_3DNOW, MASK_3DNOW_A or MASK_SSE*.  Set "x86_abm" to true when
        PTA_ABM is set in processor_alias_table flags entry.  Set "x86_popcnt"
        to true when either of PTA_POPCNT or PTA_ABM is set in
        processor_alias_table flags entry.  Set "x86_prefetch_sse" to true
        when either of PTA_PREFETCH_SSE or PTA_SSE is set in
        processor_alias_table flags entry.  Remove handling of
        "target_enable" and "target_disable" fields of processor_target_table.
        Mask "target_flags" with TARGET_SUBTARGET32_DEFAULT for 32-bit
        targets or with TARGET_SUBTARGET64_DEFAULT for 64-bit targets.
        Mask "ix86_isa_flags" with TARGET_SUBTARGET32_ISA_DEFAULT for 32-bit
        targets or with TARGET_SUBTARGET64_ISA_DEFAULT for 64-bit targets.
        (def_builtin): Mask "mask" variable with "ix86_isa_flags", not
        "target_flags".
        (TARGET_DEFAULT_TARGET_FLAGS): Do not include TARGET_64BIT_DEFAULT.

2007-05-29  David Daney  <ddaney@avtrex.com>

        PR gcc/31975
        * config/mips/mips.c (mips_output_mi_thunk): Emit
        NOTE_INSN_PROLOGUE_END at beginning of the thunk.

2007-05-29  Hui-May Chang  <hm.chang@apple.com>
        * config/i386/i386.c (ix86_function_regparm): Added checking of
        ix86_force_align_arg_pointer to determine the number of
        register parameters.

2007-05-29  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-vectorizer.h (DR_MISALIGNMENT): Cast aux to integer.
        (SET_DR_MISALIGNMENT): New.
        * tree-vect-analyze.c (vect_compute_data_ref_alignment,
        vect_update_misalignment_for_peel, vect_enhance_data_refs_alignment):
        Use SET_DR_MISALIGNMENT.
        * tree-predcom.c (split_data_refs_to_components): Cast dr->aux from
        pointer.
        * tree-data-ref.c (create_data_ref, compute_all_dependences,
        find_loop_nest): Export.
        * tree-data-ref.h (struct data_reference): Change aux field to pointer.
        (create_data_ref, compute_all_dependences, find_loop_nest): Declare.
        * tree-ssa-loop-prefetch.c: Include tree-data-ref.h.
        (L1_CACHE_SIZE_BYTES, L2_CACHE_SIZE_BYTES, NONTEMPORAL_FRACTION):
        New macros.
        (struct mem_ref): Add field reuse_distance.
        (find_or_create_group, record_ref): Use XNEW instead of xcalloc.
        Initialize reuse_distance field.
        (issue_prefetch_ref): Select temporality of prefetch according to
        reuse_distance.
        (volume_of_references, volume_of_dist_vector, add_subscript_strides,
        self_reuse_distance, determine_loop_nest_reuse): New functions.
        (loop_prefetch_arrays): Call determine_loop_nest_reuse.
        (tree_ssa_prefetch_arrays): Dump L2 cache size.
        * Makefile.in (tree-ssa-loop-prefetch.o): Add TREE_DATA_REF_H
        dependency.

2007-05-29  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-alias.c: Add aliasing overview.

2007-05-29  Zuxy Meng  <zuxy.meng@gmail.com>
            Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/29498
        * config/i386/t-crtfm: Compile crtfastmath.o with
        -minline-all-stringops.
        * config/i386/cygwin.h (ENDFILE_SPECS): Add crtfastmath.o.
        * config/i386/mingw32.h (ENDFILE_SPECS): Add crtfastmath.o.

2007-05-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * doc/md.texi: Document constraints on HP PA-RISC.

        * pa/constraints.md: New file.
        * pa.md: Include constraints.md.
        * pa.c (cint_ok_for_move): Avoid using CONST_OK_FOR_LETTER_P.
        (integer_store_memory_operand, ldil_cint_p): New functions.
        * pa-protos.h (integer_store_memory_operand, ldil_cint_p): Declare.
        * pa.h (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P,
        IS_RELOADING_PSEUDO_P, EXTRA_CONSTRAINT): Remove.
        * pa32-regs.h (REG_CLASS_FROM_LETTER): Remove.
        * pa64-regs.h (REG_CLASS_FROM_LETTER): Remove.

2007-05-28  Andrew Pinski  <Andrew_pinski@playstation.sony.com>

        PR c/31339
        * c-typeck.c (build_unary_op <case PREINCREMENT_EXPR,
        case POSTINCREMENT_EXPR, case PREDECREMENT_EXPR,
        case POSTDECREMENT_EXPR>): Return the error_mark_node
        if either the real or imaginary parts would an
        error_mark_node.

2007-05-28  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Release LHS SSA
        name when we remove it from a call.

2007-05-28  Kazu Hirata  <kazu@codesourcery.com>

        * targhooks.c (default_narrow_bitfield): Remove.
        * targhooks.h: Remove the prototype for
        default_narrow_bitfield.

        * langhooks-def.h: Remove the prototype for
        hook_get_alias_set_0.
        * langhooks.c (hook_get_alias_set_0): Remove.

        * global.c (EXECUTE_IF_CONFLICT): Remove.

2007-05-28  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32100
        * fold-const.c (tree_expr_nonnegative_warnv_p): Don't
        return true when truth_value_p is true and the type
        is of signed:1.

2007-05-28  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Prerequisites): We no longer require Autoconf
        2.13 for the top-level.

2007-05-28  Uros Bizjak  <ubizjak@gmail.com>

        * target/i386/i386.c (ix86_expand_vector_move): Expand unaligned
        memory access via x86_expand_vector_move_misalign() only for
        TImode values on 32-bit targets.

2007-05-28  Razya Ladelsky  <razya@il.ibm.com>

        * matrix-reorg.c: New file. Implement matrix flattening and
        transposing optimization.
        * tree-pass.h: Add matrix reorg pass.
        * common.opt: Add fipa-mreorg flag.
        * Makefile.in: Add matrix-reorg.c.
        * passes.c: Add matrix reorg pass.
        * varpool.c (add_new_static_var): New function.
        * cgraph.h (add_new_static_var): Declare.

2007-05-27  Eric Christopher  <echristo@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Update
        sp_offset depending on stack size. Save r12 depending
        on registers we're saving later.
        (rs6000_emit_epilogue): Update sp_offset depending only
        on stack size.

2007-05-27  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-vrp.c (execute_vrp): Do not check whether current_loops == NULL.
        * tree-chrec.c (evolution_function_is_invariant_rec_p): Ditto.
        * ifcvt.c (if_convert): Ditto.
        * tree-ssa-threadupdate.c (thread_block): Ditto.
        (thread_through_all_blocks): Ditto.  Assert that loops were analysed.
        * tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa,
        verify_loop_closed_ssa): Check number_of_loops instead of
        current_loops.
        * predict.c (tree_estimate_probability): Ditto.
        * tree-if-conv.c (main_tree_if_conversion): Ditto.
        * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
        * modulo-sched.c (sms_schedule): Ditto.
        * tree-scalar-evolution.c (scev_const_prop): Ditto.
        (scev_finalize): Do not do anything if scev analysis was not
        initialized.
        * cfgloopanal.c (mark_irreducible_loops): Do not check whether
        current_loops == NULL.
        (mark_loop_exit_edges): Check number_of_loops instead of current_loops.
        * loop-init.c (loop_optimizer_init): Do not free current_loops when
        there are no loops.
        (loop_optimizer_finalize): Assert that loops were analyzed.
        (rtl_move_loop_invariants, rtl_unswitch, rtl_unroll_and_peel_loops,
        rtl_doloop): Check number_of_loops instead of current_loops.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Do not check whether
        current_loops == NULL.
        (tree_ssa_loop_init, tree_ssa_loop_im, tree_ssa_loop_unswitch,
        gate_tree_vectorize tree_linear_transform, check_data_deps,
        tree_ssa_loop_ivcanon, tree_ssa_empty_loop, tree_ssa_loop_bounds,
        tree_complete_unroll, tree_ssa_loop_prefetch, tree_ssa_loop_ivopts):
        Check number_of_loops instead of current_loops.
        (tree_ssa_loop_done): Do not check whether current_loops == NULL.
        * tree-ssa-pre.c (fini_pre): Do not take do_fre argument.  Always
        free loops if available.
        (execute_pre): Do not pass do_fre to fini_pre.

2007-05-27  Tobias Burnus  <burnus@net-b.de>

        PR middle-end/32083
        * real.c (mpfr_from_real): Fix sign of -Inf.

2007-05-27  H.J. Lu  <hongjiu.lu@intel.com>

        * tree-vect-transform.c (vectorizable_conversion): Initialize
        tree_code variables to ERROR_MARK.
        (vectorizable_type_demotion): Likewise.
        (vectorizable_type_promotion): Likewise.

2007-05-26  Uros Bizjak  <ubizjak@gmail.com>

        PR target/32065
        * config/i386/i386.md (movti): Handle push operands via
        ix86_expand_push().

2007-05-26  Kazu Hirata  <kazu@codesourcery.com>

        * basic-block.h: Remove the prototype for merge_seq_blocks.
        * cfgcleanup.c (merge_seq_blocks): Remove.

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

2007-05-26  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386-protos.h (ix86_expand_sse4_unpack): New.

        * config/i386/i386.c (ix86_expand_sse4_unpack): New.

        * config/i386/sse.md (vec_unpacku_hi_v16qi): Call
        ix86_expand_sse4_unpack if SSE4.1 is enabled.
        (vec_unpacks_hi_v16qi): Likewise.
        (vec_unpacku_lo_v16qi): Likewise.
        (vec_unpacks_lo_v16qi): Likewise.
        (vec_unpacku_hi_v8hi): Likewise.
        (vec_unpacks_hi_v8hi): Likewise.
        (vec_unpacku_lo_v8hi): Likewise.
        (vec_unpacks_lo_v8hi): Likewise.
        (vec_unpacku_hi_v4si): Likewise.
        (vec_unpacks_hi_v4si): Likewise.
        (vec_unpacku_lo_v4si): Likewise.
        (vec_unpacks_lo_v4si): Likewise.

2007-05-26  Kazu Hirata  <kazu@codesourcery.com>

        * c-typeck.c, config/arm/arm.c, config/darwin.c,
        config/sh/symbian.c, gcc.c, ipa-cp.c, ipa-inline.c, loop-iv.c,
        omega.c, tree-ssa-loop-niter.c, treestruct.def: Fix typos and
        follow spelling conventions in various
        warning/error/diagnostic messages.

        * config/i386/i386.c, config/pa/pa.c, config/spu/spu.c,
        df-problems.c, df-scan.c, domwalk.c, ebitmap.c, ebitmap.h,
        fold-const.c, gcc.c, ipa-type-escape.c, omega.c, omega.h,
        tree-ssa-coalesce.c, tree-ssa-live.c, tree-ssa-structalias.c,
        tree-vrp.c: Fix comment typos.  Follow spelling conventions.
        * doc/tm.texi: Follow spelling conventions.

2007-05-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32090
        * tree-ssa-forwprop.c
        (forward_propagate_addr_into_variable_array_index): Remove
        the lhs argument.  Use the type of def_rhs instead of lhs.
        (forward_propagate_addr_expr_1): Update use of
        forward_propagate_addr_into_variable_array_index.

2007-05-25  Sandra Loosemore  <sandra@codesourcery.com>
            Nigel Stephens  <nigel@mips.com>

        * config/mips/mips.c (mips_attribute_table): Add "near" and "far"
        function attributes, "far" being an alias for "long_call".
        (TARGET_COMP_TYPE_ATTRIBUTES): Define as mips_comp_type_attributes.
        (mips_near_type_p, mips_far_type_p): New.
        (mips_comp_type_attributes): New function to check that attributes
        attached to a function type are compatible.
        (mips_output_mi_thunk): Test SYMBOL_REF_LONG_CALL_P() rather than
        TARGET_LONG_CALLS when deciding whether we can do a direct sibcall
        to the target function of the thunk.
        (mips_encode_section_info): Check for "near" and "far" function
        attributes, and always set the SYMBOL_FLAG_LONG_CALL bit explicitly.

        * config/mips/predicates.md (const_call_insn_operand): Test only
        SYMBOL_REF_LONG_CALL_P() and not TARGET_LONG_CALLS.

        * doc/extend.texi (Function Attributes): Document MIPS "near" and
        "far" attributes.

        * testsuite/gcc.target/mips/near-far-1.c:  New test case.
        * testsuite/gcc.target/mips/near-far-2.c:  New test case.
        * testsuite/gcc.target/mips/near-far-3.c:  New test case.
        * testsuite/gcc.target/mips/near-far-4.c:  New test case.

2007-05-25  Eric Christopher  <echristo@apple.com>

        * config.gcc: Add i386/t-fprules-softfp64 and soft-fp/t-softfp
        to x86-darwin configurations.
        * config/i386/t-darwin: Add softfp support.
        * config/i386/t-darwin64: Ditto.
        * config/i386/sfp-machine.h: If mach then don't use
        aliasing, emit a stub to call.

2007-05-25  Kazu Hirata  <kazu@codesourcery.com>

        * cfglayout.c, cgraphunit.c, config/avr/avr.c, fold-const.c,
        haifa-sched.c, optabs.h, tree-affine.c, tree-data-ref.c,
        tree-predcom.c, tree-ssa-alias-warnings.c,
        tree-ssa-forwprop.c, tree-vect-analyze.c, tree-vrp.c: Fix
        comment typos.  Follow spelling conventions.
        * doc/cpp.texi, doc/invoke.texi: Fix typos.

2007-05-26  Uros Bizjak  <ubizjak@gmail.com>

        PR target/32065
        * target/i386/i386.c (ix86_expand_vector_move): Force SUBREGs of
        constants into memory.  Expand unaligned memory references for
        SSE modes via x86_expand_vector_move_misalign() function.

2007-05-25  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): Do not calculate
        "memory" attribute for "sseishft" type insn without operands[2].

2007-05-25  Dirk Mueller  <dmueller@suse.de>
            Marcus Meissner <meissner@suse.de>

        * doc/extend.texi (alloc_size): New attribute.
        * c-common.c (handle_alloc_size_attribute): New.
        * tree-object-size.c (alloc_object_size): Use alloc_size
        attribute, if available.

2007-05-25  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (__builtin_ia32_vec_ext_v2df): Mark it
        with MASK_SSE2.
        (__builtin_ia32_vec_ext_v2di): Likewise.
        (__builtin_ia32_vec_ext_v4si): Likewise.
        (__builtin_ia32_vec_ext_v8hi): Likewise.
        (__builtin_ia32_vec_ext_v16qi): Likewise.
        (__builtin_ia32_vec_set_v8hi): Likewise.

2007-05-25  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (*vec_extractv2di_1_sse2): Correct shift.

2007-05-25  Richard Sandiford  <richard@codesourcery.com>

        * config/arm/arm-protos.h (arm_encode_call_attribute): Delete.
        (arm_is_longcall_p): Rename to...
        (arm_is_long_call_p): ...this.  Take a single tree argument and
        return a bool.
        * config/arm/arm.h (CALL_SHORT, CALL_LONG, CALL_NORMAL): Delete.
        (CUMULATIVE_ARGS): Remove call_cookie.
        (SHORT_CALL_FLAG_CHAR, LONG_CALL_FLAG_CHAR, ENCODED_SHORT_CALL_ATTR_P)
        (ENCODED_LONG_CALL_ATTR_P): Delete.
        (ARM_NAME_ENCODING_LENGTHS): Remove SHORT_CALL_FLAG_CHAR and
        LONG_CALL_FLAG_CHAR cases.
        (ARM_DECLARE_FUNCTION_SIZE): Delete.
        * config/arm/elf.h (ASM_DECLARE_FUNCTION_SIZE): Don't use
        ARM_DECLARE_FUNCTION_SIZE.
        * config/arm/arm.c (arm_init_cumulative_args): Don't set call_cookie.
        (arm_function_arg): Return const0_rtx for VOIDmode arguments.
        (arm_encode_call_attribute, current_file_function_operand): Delete.
        (arm_function_in_section_p): New function.
        (arm_is_longcall_p): Rename to...
        (arm_is_long_call_p): ...this.  Take the target function as a single
        argument and return a bool.  Do not rely on call cookies.  Check
        whether the target symbol is in the same section as the current
        function, not just the same compilation unit.
        (arm_function_ok_for_sibcall): Use arm_is_long_call_p.
        (arm_encode_section_info): Don't encode a call type.
        * config/arm/arm.md (call, call_value): Update calls to
        arm_is_long(_)call_p.  Simplify logic.
        (*call_symbol, *call_value_symbol, *call_insn, *call_value_insn):
        Update calls to arm_is_long(_)call_p.

2007-05-25  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31982
        * tree-ssa-forwprop.c
        (forward_propagate_addr_into_variable_array_index): Handle arrays
        with element size one.

2007-05-24  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * config/spu/spu.md (smulsi3_highpart): Unshare the rtl chain.
        (umulsi3_highpart): Likewise.

2007-05-24  Ian Lance Taylor  <iant@google.com>

        PR rtl-optimization/32069
        * regclass.c (regclass): Don't crash if the entry in regno_reg_rtx
        is NULL.

2007-05-24  Ollie Wild  <aaw@google.com>

        * doc/cpp.texi (Common Predefined Macros): Add __COUNTER__
        description.

2007-05-24  Richard Sandiford  <rsandifo@nildram.co.uk>

        * postreload-gcse.c (reg_changed_after_insn_p): New function.
        (oprs_unchanged_p): Use it to check all registers in a REG.
        (record_opr_changes): Look for clobbers in CALL_INSN_FUNCTION_USAGE.
        (reg_set_between_after_reload_p): Delete.
        (reg_used_between_after_reload_p): Likewise.
        (reg_set_or_used_since_bb_start): Likewise.
        (eliminate_partially_redundant_load): Use reg_changed_after_insn_p
        and reg_used_between_p instead of reg_set_or_used_since_bb_start.
        Use reg_set_between_p instead of reg_set_between_after_reload_p.
        * rtlanal.c (reg_set_p): Check whether REG overlaps
        regs_invalidated_by_call, rather than just checking the
        membership of REGNO (REG).

2007-05-24  Zdenek Dvorak  <dvorakz@suse.cz>

        * doc/passes.texi: Document predictive commoning.
        * doc/invoke.texi (-fpredictive-commoning): Document.
        * opts.c (decode_options): Enable flag_predictive_commoning on -O3.
        * tree-ssa-loop-im.c (get_lsm_tmp_name): Export.  Allow
        adding indices to the generated name.
        (schedule_sm): Pass 0 to get_lsm_tmp_name.
        * tree-ssa-loop-niter.c (stmt_dominates_stmt_p): Export.
        * tree-pretty-print.c (op_symbol_1): Renamed to ...
        (op_symbol_code): ... and exported.
        (dump_omp_clause, op_symbol): Use op_symbol_code
        instead of op_symbol_1.
        * tree-pass.h (pass_predcom): Declare.
        * timevar.def (TV_PREDCOM): New timevar.
        * tree-ssa-loop.c (run_tree_predictive_commoning,
        gate_tree_predictive_commoning, pass_predcom): New.
        * tree-data-ref.c (find_data_references_in_loop): Find the
        references in dominance order.
        (canonicalize_base_object_address): Ensure that the result has
        pointer type.
        (dr_analyze_innermost): Export.
        (create_data_ref): Code to fail for references with invariant
        address moved ...
        (find_data_references_in_stmt): ... here.
        * tree-data-ref.h (dr_analyze_innermost): Declare.
        * tree-affine.c: Include tree-gimple.h and hashtab.h.
        (aff_combination_find_elt, name_expansion_hash,
        name_expansion_eq, tree_to_aff_combination_expand,
        double_int_constant_multiple_p, aff_combination_constant_multiple_p):
        New functions.
        * tree-affine.h (aff_combination_constant_multiple_p,
        tree_to_aff_combination_expand): Declare.
        * tree-predcom.c: New file.
        * common.opt (fpredictive-commoning): New option.
        * tree-flow.h (op_symbol_code, tree_predictive_commoning,
        stmt_dominates_stmt_p, get_lsm_tmp_name): Declare.
        * Makefile.in (tree-predcom.o): Add.
        (tree-affine.o): Add TREE_GIMPLE_H dependency.
        * passes.c (init_optimization_passes):  Add dceloop after
        copy propagation in loop optimizer.  Add predictive commoning
        to loop optimizer passes.

2007-05-24  H.J. Lu  <hongjiu.lu@intel.com>

        * target-def.h (TARGET_MANGLE_DECL_ASSEMBLER_NAME): Correct
        default hook.

2007-05-24  Jan Hubicka  <jh@suse.cz>

        * gengenrtl.c (gendecl, gendef): Output the gens annotated for
        statistics.
        (genheader): Include statistics.h.

        * doc/invoke.texi (-fdump-unnumbered): Update docs when line number
        notes are gone.
        * print-rtl.c (flag_dump_unnumbered): Update comments.
        (print_rtl): Fix my previous change.
        * emit-rtl.c (emit_note_before, emit_note_after): Clear out note
        specific data.

2007-05-24  Zdenek Dvorak  <dvorakz@suse.cz>

        PR middle-end/32018
        * tree-ssa-threadupdate.c (thread_through_loop_header): Use
        set_loop_copy.
        (thread_through_all_blocks): Call initialize_original_copy_tables
        and free_original_copy_tables.
        * cfgloopmanip.c (duplicate_loop, duplicate_loop_to_header_edge):
        Use set_loop_copy.
        * tree-cfg.c (tree_duplicate_sese_region): Ditto.
        * cfghooks.c (duplicate_block): Use get_loop_copy.
        * cfg.c: Include cfgloop.h.
        (loop_copy): New hash table.
        (initialize_original_copy_tables): Initialize loop_copy table.
        (free_original_copy_tables): Free loop_copy table.
        (copy_original_table_clear, copy_original_table_set,
        set_loop_copy, get_loop_copy): New functions.
        (set_bb_original, set_bb_copy): Use copy_original_table_set.
        * cfgloop.h (struct loop): Remove copy field.
        * Makefile.in (cfg.o): Add CFGLOOP_H dependency.
        * basic-block.h (set_loop_copy, get_loop_copy): Declare.

2007-05-24  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_handle_option): Handle SSE4.1 for
        -msse/-msse2/-msse3.

2007-05-24  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Mark
        __builtin_ia32_vec_set_v2di with MASK_64BIT.

2007-05-24  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/27067
        * doc/tm.texi (TARGET_MANGLE_DECL_ASSEMBLER_NAME): Document.
        * targhooks.h (default_mangle_decl_assembler_name): Declare
        default hook.
        * targhooks.c (default_mangle_decl_assembler_name): Define
        default hook.
        * target-def.h (TARGET_MANGLE_DECL_ASSEMBLER_NAME) New. Set to
        default hook.
        * target.h (struct gcc_target): Add mangle_decl_assembler_name field.
        * langhooks.c (lhd_set_decl_assembler_name): Call
        targetm.mangle_decl_assembler_name for names with global scope.

        * config/i386/cygming.h (TARGET_MANGLE_DECL_ASSEMBLER_NAME) Override
        default.
        (ASM_OUTPUT_DEF_FROM_DECLS): Simplify to use DECL_ASSEMBLER_NAME.
        * config/i386/i386-protos.h (i386_pe_mangle_decl_assembler_name):
        Declare.
        * config/i386/winnt.c (i386_pe_maybe_mangle_decl_assembler_name):
        New. Factored out of i386_pe_encode_section_info.
        (gen_stdcall_or_fastcall_suffix): Get name identifier as argument.
        Move check for prior decoration of stdcall
        symbols to i386_pe_encode_section_info.
        (i386_pe_encode_section_info): Adjust call to
        gen_stdcall_or_fastcall_suffix.  Use
        i386_pe_maybe_mangle_decl_assembler_name, if needed.
        (i386_pe_mangle_decl_assembler_name): New. Wrap
        i386_pe_maybe_mangle_decl_assembler_name.

2007-05-16  Rafael Avila de Espindola  <espindola@google.com>

        * c-common.c (c_common_signed_or_unsigned_type): Delay the check for
        INTEGRAL_TYPE_P and TYPE_UNSIGNED.
        * langhooks.c (get_signed_or_unsigned_type): Don't check for
        INTEGRAL_TYPE_P or TYPE_UNSIGNED.
        (lhd_signed_or_unsigned_type): Check for INTEGRAL_TYPE_P and
        TYPE_UNSIGNED.

2007-05-23  Sandra Loosemore  <sandra@codesourcery.com>
            Nigel Stephens  <nigel@mips.com>
            Richard Sandiford  <richard@codesourcery.com>

        Fix up MIPS16 hard float and add support for complex.

        * config/mips/mips.h (TARGET_HARD_FLOAT_ABI): New.
        (TARGET_SOFT_FLOAT_ABI): New.
        (TARGET_CPU_CPP_BUILTINS): Define __mips_hard_float and
        __mips_soft_float to reflect the ABI in use, not whether the
        FPU is directly accessible (e.g., in MIPS16 mode).
        (UNITS_PER_HWFPVALUE): Use TARGET_SOFT_FLOAT_ABI.
        (UNITS_PER_FPVALUE): Likewise.

        * config/mips/mips.c (mips_expand_call): Remove redundant
        TARGET_MIPS16 check.
        (mips_arg_regno): New.
        (function_arg_advance): When setting bits in cum->fp_code for
        MIPS16, don't subtract 1 from cum->arg_number, since it is now
        zero-based.
        (function_arg): Use mips_arg_regno.
        (mips_return_mode_in_fpr_p): New.
        (mips16_call_stub_mode_suffix): New.
        (mips16_cfun_returns_in_fpr_p): New.
        (mips_save_reg_p): Use mips16_cfun_returns_in_fpr_p.
        (mips_output_function_prologue): Test mips16_hard_float, not
        !TARGET_SOFT_FLOAT, to decide when a function stub is required.
        (mips_expand_epilogue): Call MIPS16 helper routines to copy
        return value into a floating-point register.
        (mips_can_use_return_insn): Use mips16_cfun_returns_in_fpr_p.
        (mips_function_value): Rewrite to use mips_return_mode_in_fpr_p.
        (mips16_fp_args): Handle MIPS32r2 ISA which supports
        TARGET_FLOAT64, and use mfhc1/mthc1 to copy the most significant
        word of double arguments from or to the high bits of 64-bit
        floating point registers.
        (build_mips16_function_stub): Fill in DECL_RESULT for stubdecl.
        (mips16_fpret_double): New helper function.
        (build_mips16_call_stub): Use mips16_return_mode_in_fpr_p.  Add
        support for complex modes.  Fill in DECL_RESULT for stubdecl.
        (mips_init_libfuncs): Remove redundant TARGET_MIPS16 check.

        * config/mips/mips16.S
        (RET, ARG1, ARG2): New.
        (MERGE_GPRf, MERGE_GPRt): New.
        (DELAYt, DELAYf): New.
        (MOVE_SF_BYTE0, MOVE_SI_BYTE0): New.
        (MOVE_SF_BYTE4, MOVE_SF_BYTE8): New.
        (MOVE_DF_BYTE0, MOVE_DF_BYTE8): New.
        (MOVE_SF_RET, MOVE_SC_RET, MOVE_DF_RET, MOVE_DC_RET, MOVE_SI_RET): New.
        (SFOP): Renamed to...
        (OPSF3): This, and macro-ified.  Updated all uses.
        (SFOP2): Renamed to...
        (OPSF2): This, and macro-ified.  Updated all uses.
        (SFCMP): Renamed to...
        (CMPSF): This, and macro-ified.  Updated all uses.
        (SFREVCMP): Renamed to...
        (REVCMPSF): This, and macro-ified.  Updated all uses.
        (__mips16_floatsisf, __mips16_fix_truncsfsi): Macro-ified.
        (LDDBL1, LDDBL2, RETDBL): Deleted.
        (DFOP): Renamed to...
        (OPDF3): This, and macro-ified.  Updated all uses.
        (DFOP2): Renamed to...
        (OPDF2): This, and macro-ified.  Updated all uses.
        (__mips16_extendsfdf2, __mips16_truncdfsf2): Macro-ified.
        (DFCMP): Renamed to...
        (CMPDF): This, and macro-ified.  Updated all uses.
        (DFREVCMP): Renamed to...
        (REVCMPDF): This, and macro-ified.  Updated all uses.
        (__mips16_floatsidf, __mips16_fix_truncdfsi): Macro-ified.
        (RET_FUNCTION): New.
        (__mips16_ret_sf, __mips16_ret_df): Macro-ified.
        (__mips16_ret_sc, __mips16_ret_dc): New.
        (STUB_ARGS_0, STUB_ARGS_1, STUB_ARGS_5, STUB_ARGS_9, STUB_ARGS_2,
        STUB_ARGS_6, STUB_ARGS_10): New.
        (CALL_STUB_NO_RET): New.
        (__mips16_call_stub_1): Macro-ified.
        (__mips16_call_stub_5): Macro-ified.
        (__mips16_call_stub_2): Macro-ified.
        (__mips16_call_stub_6): Macro-ified.
        (__mips16_call_stub_9): Macro-ified.
        (__mips16_call_stub_10): Macro-ified.
        (CALL_STUB_RET): New.
        (__mips16_call_stub_sf_0): Macro-ified.
        (__mips16_call_stub_sf_1): Macro-ified.
        (__mips16_call_stub_sf_5): Macro-ified.
        (__mips16_call_stub_sf_2): Macro-ified.
        (__mips16_call_stub_sf_6): Macro-ified.
        (__mips16_call_stub_sf_9): Macro-ified.
        (__mips16_call_stub_sf_10): Macro-ified.
        (__mips16_call_stub_df_0): Macro-ified.
        (__mips16_call_stub_df_1): Macro-ified.
        (__mips16_call_stub_df_5): Macro-ified.
        (__mips16_call_stub_df_2): Macro-ified.
        (__mips16_call_stub_df_6): Macro-ified.
        (__mips16_call_stub_df_9): Macro-ified.
        (__mips16_call_stub_df_10): Macro-ified.
        (__mips16_call_stub_sc_0): New.
        (__mips16_call_stub_sc_1): New.
        (__mips16_call_stub_sc_5): New.
        (__mips16_call_stub_sc_2): New.
        (__mips16_call_stub_sc_6): New.
        (__mips16_call_stub_sc_9): New.
        (__mips16_call_stub_sc_10): New.
        (__mips16_call_stub_dc_0): New.
        (__mips16_call_stub_dc_1): New.
        (__mips16_call_stub_dc_5): New.
        (__mips16_call_stub_dc_2): New.
        (__mips16_call_stub_dc_6): New.
        (__mips16_call_stub_dc_9): New.
        (__mips16_call_stub_dc_10): New.

        * config/mips/t-elf (LIB1ASMFUNCS): Add MIPS16 floating-point stubs.
        * config/mips/t-isa3264 (LIB1ASMFUNCS): Likewise.
        * config/mips/t-r2900 (LIB1ASMFUNCS): Likewise.

2007-05-23  Ian Lance Taylor  <iant@google.com>

        * doc/invoke.texi (Invoking GCC): Document that the order of the
        -l option matters.

2007-05-23  Chen Liqin  <liqin@sunnorth.com.cn>

        PR target/30987
        * config/score/misc.md (bitclr_c, bitset_c, bittgl_c): Remove.
        * config/score/predicate.md (const_pow2, const_npow2): Remove.
        * config/score/score.h (ASM_OUTPUT_EXTERNAL): Add ASM_OUTPUT_EXTERNAL
        undef.

        PR target/30474
        * config/score/score.c (score_print_operand): Make sure that only
        lower bits are used.

2007-05-22  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (avoid_overflow_infinity): New static function,
        broken out of set_value_range_to_value.
        (set_value_range_to_value): Call avoid_overflow_infinity.
        (extract_range_from_assert): Likewise.

2007-05-22  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31095
         * builtins.c (expand_builtin_memmove_args): Strip nops that don't
        change the type before looking for a COMPOUND_EXPR.

2007-05-22  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (decompose_multiword_subregs): If we change an
        insn, call remove_retval_note on it.

2007-05-22  Richard Sandiford  <rsandifo@nildram.co.uk>

        * regs.h (end_hard_regno): New function.
        (END_HARD_REGNO, END_REGNO): New macros.
        (add_to_hard_reg_set): New function.
        (remove_from_hard_reg_set): Likewise.
        (in_hard_reg_set_p): Likewise.
        (overlaps_hard_reg_set_p): Likewise.
        * bt-load.c (find_btr_reference): Use overlaps_hard_reg_set_p.
        (note_btr_set): Use END_HARD_REGNO.
        * caller-save.c (setup_save_areas): Use end_hard_regno.
        (mark_set_regs): Use END_HARD_REGNO.
        (add_stored_regs): Use end_hard_regno.
        (mark_referenced_regs): Use add_to_hard_reg_set.
        * combine.c (update_table_tick): Use END_REGNO.
        (record_value_for_reg): Likewise.
        (record_dead_and_set_regs): Likewise.
        (get_last_value_validate): Likewise.
        (use_crosses_set_p): Likewise.
        (reg_dead_at_p_1): Likewise.
        (reg_dead_at_p): Likewise.
        (mark_used_regs_combine): Use add_to_hard_reg_set.
        (move_deaths): Use END_HARD_REGNO.
        (reg_bitfield_target_p): Use end_hard_regno.
        (distribute_notes): Use END_HARD_REGNO.
        * cse.c (mention_regs): Use END_REGNO.
        (insert): Use add_to_hard_reg_set.
        (invalidate): Use END_HARD_REGNO.
        (invalidate_for_call): Likewise.
        (exp_equiv_p): Use END_REGNO.
        (cse_insn): Likewise.
        * cselib.c (cselib_invalidate_regno): Use end_hard_regno.
        * df-problems.c (df_urec_mark_reg_change): Use END_HARD_REGNO.
        * df-scan.c (df_ref_record): Use END_HARD_REGNO.
        * function.c (keep_stack_depressed): Use end_hard_regno.
        * global.c (global_alloc): Use end_hard_regno.
        (global_conflicts): Use add_to_hard_reg_set instead of
        mark_reg_live_nc.
        (find_reg): Likewise.
        (mark_reg_store): Likewise.
        (mark_reg_conflicts): Likewise.
        (mark_reg_death): Use remove_from_hard_reg_set.
        (mark_reg_live_nc): Delete.
        (set_preference): Use end_hard_regno.
        * local-alloc.c (mark_life): Use add_to_hard_reg_set and
        remove_from_hard_reg_set.
        (post_mark_life): Use add_to_hard_reg_set.
        * mode-switching.c (reg_dies): Use remove_from_hard_reg_set.
        (reg_becomes_live): Use add_to_hard_reg_set.
        * recog.c (reg_fits_class_p): Use in_hard_reg_set_p.
        (peep2_find_free_register): Use add_to_hard_reg_set.
        * reg-stack.c (convert_regs_exit): Use END_HARD_REGNO.
        * regclass.c (record_reg_classes): Use in_hard_reg_set_p.
        * regrename.c (note_sets): Use add_to_hard_reg_set.
        (clear_dead_regs): Use remove_from_hard_reg_set.
        (regrename_optimize): Use add_to_hard_reg_set.
        (find_oldest_value_reg): Use in_hard_reg_set_p.
        * reload.c (push_reload): Use in_hard_reg_set_p and end_hard_regno.
        (hard_reg_set_here_p): Use end_hard_regno.
        (decompose): Likewise.
        (reg_overlap_mentioned_for_reload_p): Use END_HARD_REGNO.
        (find_equiv_reg): Use in_hard_reg_set_p and end_hard_regno.
        * reload1.c (compute_use_by_pseudos): Use add_to_hard_reg_set.
        (mark_home_live): Use end_hard_regno.
        (spill_hard_reg): Likewise.
        (clear_reload_reg_in_use): Likewise.
        * reorg.c (delete_prior_computation): Use END_REGNO.
        * resource.c (update_live_status): Use END_HARD_REGNO.
        (mark_referenced_resources): Use add_to_hard_reg_set.
        (mark_set_resources): Likewise.
        (mark_target_live_regs): Likewise.  Use remove_from_hard_reg_set.
        * rtlanal.c (refers_to_regno_p): Use END_REGNO.
        (reg_overlap_mentioned_p): Likewise.
        (dead_or_set_p): Likewise.  Use an exclusive upper loop bound.
        (covers_regno_no_parallel_p): Use END_REGNO.
        (find_regno_note): Likewise.
        (find_reg_fusage): Use END_HARD_REGNO.
        * stmt.c (decl_overlaps_hard_reg_set_p): Use overlaps_hard_reg_set_p.
        * var-tracking.c (emit_note_insn_var_location): Use end_hard_regno.

2007-05-22  Richard Sandiford  <rsandifo@nildram.co.uk>

        * mode-switching.c (reg_dies): Change type of second argument to
        "HARD_REG_SET *".
        (optimize_mode_switching): Update accordingly.

2007-05-22  Richard Sandiford  <richard@codesourcery.com>

        * hard-reg-set.h (GO_IF_HARD_REG_SUBSET, GO_IF_HARD_REG_EQUAL): Delete
        in favor of...
        (hard_reg_subset_p, hard_reg_sets_equal_p, hard_reg_sets_intersect_p)
        (hard_reg_set_empty_p): ...these new functions.
        * bt-load.c (choose_btr): Use hard_reg_subset_p instead of
        GO_IF_HARD_REG_SUBSET.
        * cfgcleanup.c (old_insns_match_p): Use hard_reg_sets_equal_p
        instead of GO_IF_HARD_REG_EQUAL.
        * df-problems.c (df_urec_local_compute): Use hard_reg_set_empty_p
        instead of GO_IF_HARD_REG_EQUAL.
        * global.c (find_reg): Use hard_reg_set_empty_p instead of
        GO_IF_HARD_REG_SUBSET.
        (modify_reg_pav): Use hard_reg_set_empty_p instead of
        GO_IF_HARD_REG_EQUAL.
        * local-alloc.c (find_free_reg): Use hard_reg_subset_p instead
        of GO_IF_HARD_REG_SUBSET.
        * reg-stack.c (change_stack, convert_regs_1): Use hard_reg_sets_equal_p
        instead of GO_IF_HARD_REG_EQUAL.
        * regclass.c (init_reg_sets_1, reg_scan_mark_refs): Use
        hard_reg_subset_p instead of GO_IF_HARD_REG_SUBSET.
        (reg_classes_intersect_p): Use hard_reg_sets_intersect_p instead
        of GO_IF_HARD_REG_SUBSET,
        * reload1.c (finish_spills): Use hard_reg_subset_p instead of
        GO_IF_HARD_REG_SUBSET.
        * struct-equiv.c (death_notes_match_p): Use hard_reg_sets_equal_p
        instead of GO_IF_HARD_REG_EQUAL.
        * config/sh/sh.c (push_regs, calc_live_regs): Use
        hard_reg_sets_intersect_p instead of hard_regs_intersect_p.
        (hard_regs_intersect_p): Delete.

2007-05-22  Janis Johnson  <janis187@us.ibm.com>

        * doc/sourcebuild.texi (Test Directives) Add dg-message.

2007-05-22  H.J. Lu  <hongjiu.lu@intel.com>
            Richard Henderson  <rth@redhat.com>

        * config.gcc (i[34567]86-*-*): Add smmintrin.h to
        extra_headers.
        (x86_64-*-*): Likewise.

        * i386/i386-modes.def (V2QI): New.

        * config/i386/i386.c (ix86_handle_option): Handle SSE4.1 and
        SSE4A.
        (override_options): Support SSE4.1.
        (IX86_BUILTIN_BLENDPD): New for SSE4.1.
        (IX86_BUILTIN_BLENDPS): Likewise.
        (IX86_BUILTIN_BLENDVPD): Likewise.
        (IX86_BUILTIN_BLENDVPS): Likewise.
        (IX86_BUILTIN_PBLENDVB128): Likewise.
        (IX86_BUILTIN_PBLENDW128): Likewise.
        (IX86_BUILTIN_DPPD): Likewise.
        (IX86_BUILTIN_DPPS): Likewise.
        (IX86_BUILTIN_INSERTPS128): Likewise.
        (IX86_BUILTIN_MOVNTDQA): Likewise.
        (IX86_BUILTIN_MPSADBW128): Likewise.
        (IX86_BUILTIN_PACKUSDW128): Likewise.
        (IX86_BUILTIN_PCMPEQQ): Likewise.
        (IX86_BUILTIN_PHMINPOSUW128): Likewise.
        (IX86_BUILTIN_PMAXSB128): Likewise.
        (IX86_BUILTIN_PMAXSD128): Likewise.
        (IX86_BUILTIN_PMAXUD128): Likewise.
        (IX86_BUILTIN_PMAXUW128): Likewise.
        (IX86_BUILTIN_PMINSB128): Likewise.
        (IX86_BUILTIN_PMINSD128): Likewise.
        (IX86_BUILTIN_PMINUD128): Likewise.
        (IX86_BUILTIN_PMINUW128): Likewise.
        (IX86_BUILTIN_PMOVSXBW128): Likewise.
        (IX86_BUILTIN_PMOVSXBD128): Likewise.
        (IX86_BUILTIN_PMOVSXBQ128): Likewise.
        (IX86_BUILTIN_PMOVSXWD128): Likewise.
        (IX86_BUILTIN_PMOVSXWQ128): Likewise.
        (IX86_BUILTIN_PMOVSXDQ128): Likewise.
        (IX86_BUILTIN_PMOVZXBW128): Likewise.
        (IX86_BUILTIN_PMOVZXBD128): Likewise.
        (IX86_BUILTIN_PMOVZXBQ128): Likewise.
        (IX86_BUILTIN_PMOVZXWD128): Likewise.
        (IX86_BUILTIN_PMOVZXWQ128): Likewise.
        (IX86_BUILTIN_PMOVZXDQ128): Likewise.
        (IX86_BUILTIN_PMULDQ128): Likewise.
        (IX86_BUILTIN_PMULLD128): Likewise.
        (IX86_BUILTIN_ROUNDPD): Likewise.
        (IX86_BUILTIN_ROUNDPS): Likewise.
        (IX86_BUILTIN_ROUNDSD): Likewise.
        (IX86_BUILTIN_ROUNDSS): Likewise.
        (IX86_BUILTIN_PTESTZ): Likewise.
        (IX86_BUILTIN_PTESTC): Likewise.
        (IX86_BUILTIN_PTESTNZC): Likewise.
        (IX86_BUILTIN_VEC_EXT_V16QI): Likewise.
        (IX86_BUILTIN_VEC_SET_V2DI): Likewise.
        (IX86_BUILTIN_VEC_SET_V4SF): Likewise.
        (IX86_BUILTIN_VEC_SET_V4SI): Likewise.
        (IX86_BUILTIN_VEC_SET_V16QI): Likewise.
        (bdesc_ptest): New.
        (bdesc_sse_3arg): Likewise.
        (bdesc_2arg): Likewise.
        (bdesc_1arg): Likewise.
        (ix86_init_mmx_sse_builtins): Support SSE4.1.  Handle SSE builtins
        with 3 args.
        (ix86_expand_sse_4_operands_builtin): New.
        (ix86_expand_unop_builtin): Support 2 arg builtins with a constant
        smaller than 8 bits as the 2nd arg.
        (ix86_expand_sse_ptest): New.
        (ix86_expand_builtin): Support SSE4.1. Support 3 arg SSE builtins.
        (ix86_expand_vector_set): Support SSE4.1.
        (ix86_expand_vector_extract): Likewise.

        * config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Define
        __SSE4_1__ for -msse4.1.

        * config/i386/i386.md (UNSPEC_BLENDV): New for SSE4.1.
        (UNSPEC_INSERTPS): Likewise.
        (UNSPEC_DP): Likewise.
        (UNSPEC_MOVNTDQA): Likewise.
        (UNSPEC_MPSADBW): Likewise.
        (UNSPEC_PHMINPOSUW): Likewise.
        (UNSPEC_PTEST): Likewise.
        (UNSPEC_ROUNDP): Likewise.
        (UNSPEC_ROUNDS): Likewise.

        * config/i386/i386.opt (msse4.1): New for SSE4.1.

        * config/i386/predicates.md (const_pow2_1_to_2_operand): New.
        (const_pow2_1_to_32768_operand): Likewise.

        * config/i386/smmintrin.h: New. The SSE4.1 intrinsic header
        file.

        * config/i386/sse.md (*vec_setv4sf_sse4_1): New pattern for
        SSE4.1.
        (sse4_1_insertps): Likewise.
        (*sse4_1_extractps): Likewise.
        (sse4_1_ptest): Likewise.
        (sse4_1_mulv2siv2di3): Likewise.
        (*sse4_1_mulv4si3): Likewise.
        (*sse4_1_smax<mode>3): Likewise.
        (*sse4_1_umax<mode>3): Likewise.
        (*sse4_1_smin<mode>3): Likewise.
        (*sse4_1_umin<mode>3): Likewise.
        (sse4_1_eqv2di3): Likewise.
        (*sse4_1_pinsrb): Likewise.
        (*sse4_1_pinsrd): Likewise.
        (*sse4_1_pinsrq): Likewise.
        (*sse4_1_pextrb): Likewise.
        (*sse4_1_pextrb_memory): Likewise.
        (*sse4_1_pextrw_memory): Likewise.
        (*sse4_1_pextrq): Likewise.
        (sse4_1_blendpd): Likewise.
        (sse4_1_blendps): Likewise.
        (sse4_1_blendvpd): Likewise.
        (sse4_1_blendvps): Likewise.
        (sse4_1_dppd): Likewise.
        (sse4_1_dpps): Likewise.
        (sse4_1_movntdqa): Likewise.
        (sse4_1_mpsadbw): Likewise.
        (sse4_1_packusdw): Likewise.
        (sse4_1_pblendvb): Likewise.
        (sse4_1_pblendw): Likewise.
        (sse4_1_phminposuw): Likewise.
        (sse4_1_extendv8qiv8hi2): Likewise.
        (*sse4_1_extendv8qiv8hi2): Likewise.
        (sse4_1_extendv4qiv4si2): Likewise.
        (*sse4_1_extendv4qiv4si2): Likewise.
        (sse4_1_extendv2qiv2di2): Likewise.
        (*sse4_1_extendv2qiv2di2): Likewise.
        (sse4_1_extendv4hiv4si2): Likewise.
        (*sse4_1_extendv4hiv4si2): Likewise.
        (sse4_1_extendv2hiv2di2): Likewise.
        (*sse4_1_extendv2hiv2di2): Likewise.
        (sse4_1_extendv2siv2di2): Likewise.
        (*sse4_1_extendv2siv2di2): Likewise.
        (sse4_1_zero_extendv8qiv8hi2): Likewise.
        (*sse4_1_zero_extendv8qiv8hi2): Likewise.
        (sse4_1_zero_extendv4qiv4si2): Likewise.
        (*sse4_1_zero_extendv4qiv4si2): Likewise.
        (sse4_1_zero_extendv2qiv2di2): Likewise.
        (*sse4_1_zero_extendv2qiv2di2): Likewise.
        (sse4_1_zero_extendv4hiv4si2): Likewise.
        (*sse4_1_zero_extendv4hiv4si2): Likewise.
        (sse4_1_zero_extendv2hiv2di2): Likewise.
        (*sse4_1_zero_extendv2hiv2di2): Likewise.
        (sse4_1_zero_extendv2siv2di2): Likewise.
        (*sse4_1_zero_extendv2siv2di2): Likewise.
        (sse4_1_roundpd): Likewise.
        (sse4_1_roundps): Likewise.
        (sse4_1_roundsd): Likewise.
        (sse4_1_roundss): Likewise.
        (mulv4si3): Don't expand for SSE4.1.
        (smax<mode>3): Likewise.
        (umaxv4si3): Likewise.
        (uminv16qi3): Likewise.
        (umin<mode>3): Likewise.
        (umaxv8hi3): Rewrite.  Only enabled for SSE4.1.

        * doc/extend.texi: Document SSE4.1 built-in functions.

        * doc/invoke.texi: Document -msse4.1.

2007-05-22  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/linux.h (ASM_SPEC): Add asm_pcrel_spec.
        * config/m68k/m68k-none.h (ASM_SPEC): Don't override here.
        * config/m68k/m68k.h (ASM_PCREL_SPEC): New.
        (ASM_SPEC): Add asm_pcrel_spec.
        (EXTRA_SPECS): Add asm_pcrel_spec.

2007-05-21  David Daney  <ddaney@avtrex.com>

        * doc/install.texi (Building a cross compiler): Add requirements
        for Java cross compiler.

2007-05-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31995
        * tree-chrec.c (evolution_function_is_affine_multivariate_p):
        Add loopno argument.  Use evolution_function_is_invariant_rec_p
        instead of evolution_function_is_constant_p.
        Update calls to evolution_function_is_affine_multivariate_p.
        * tree-chrec.h (evolution_function_is_affine_multivariate_p):
        Add loopno argument.
        * tree-scalar-evolution.c (gather_chrec_stats): Call
        evolution_function_is_affine_multivariate_p with a loop
        number of 0.
        * tree-data-ref.c (analyze_miv_subscript): Likewise.
        (analyze_overlapping_iterations): Likewise.
        (access_functions_are_affine_or_constant_p): Likewise.
        (build_classic_dist_vector_1): If the access functions
        are equal, don't do anything.

2007-05-21  Paolo Bonzini  <bonzini@gnu.org>
            Paolo Carlini  <pcarlini@suse.de>
            Uros Bizjak  <ubizjak@gmail.com>

        * c-cppbuiltin.c (c_cpp_builtins): Define
        __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2,
        __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8,
        __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16, if appropriate.
        * doc/cpp.texi ([Standard Predefined Macros]): Document.

2007-05-21  Mike Stump  <mrs@apple.com>

        * config/darwin.h (LINK_COMMAND_SPEC): Add .cxx/.cp for dsymutil
        handling as well.
        * config/darwin9.h (LINK_COMMAND_SPEC): Likewise.

2007-05-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/tmmintrin.h (_mm_alignr_epi8): Provide macro
        implementation if __OPTIMIZE__ is not defined.
        (_mm_alignr_pi8): Ditto.
        * config/i386/ammintrin.h (_mm_extracti_si64): Ditto.
        (_mm_inserti_si64): Ditto.
        * config/i386/emmintrin.h (_mm_shuffle_pd): Ditto.
        (_mm_slli_epi16): Ditto.
        (_mm_slli_epi32): Ditto.
        (_mm_slli_epi64): Ditto.
        (_mm_srai_epi16): Ditto.
        (_mm_srai_epi32): Ditto.
        (_mm_srli_si128): Ditto.
        (_mm_slli_si128): Ditto.
        (_mm_srli_epi16): Ditto.
        (_mm_srli_epi32): Ditto.
        (_mm_srli_epi64): Ditto.
        (_mm_extract_epi16): Ditto.
        (_mm_insert_epi16): Ditto.
        (_mm_shufflehi_epi16): Ditto.
        (_mm_shufflelo_epi16): Ditto.
        (_mm_shuffle_epi32): Ditto.
        * config/i386/xmmintrin.h (_mm_extract_pi16): Ditto.
        (_m_pextrw): Ditto.
        (_mm_insert_pi16): Ditto.
        (_m_pinsrw): Ditto.
        (_mm_shuffle_pi16): Ditto.
        (_m_pshufw): Ditto.
        (_mm_shufle_ps): Ditto.
        (_mm_prefetch): Ditto.

2007-05-21  Andreas Krebbel  <krebbel1@de.ibm.com>

        * defaults.h (IBM_FLOAT_FORMAT): Macro definition removed.
        * doc/tm.texi (IBM_FLOAT_FORMAT): Documentation entry removed.
        * real.c (encode_i370_single, decode_i370_single,
        encode_i370_double, decode_i370_double): Functions removed.
        (i370_single_format, i370_double_format): Initializations removed.
        (real_maxval, round_for_format, exact_real_truncate, significand_size):
        Consider the log2_b field to always be one.
        (ieee_single_format, mips_single_format, coldfire_single_format,
        ieee_double_format, mips_double_format, coldfire_double_format,
        ieee_extended_motorola_format, ieee_extended_intel_96_format,
        ieee_extended_intel_128_format, ieee_extended_intel_96_round_53_format,
        ibm_extended_format, mips_extended_format, ieee_quad_format,
        mips_quad_format, vax_f_format, vax_d_format, vax_g_format,
        decimal_single_format, decimal_double_format, decimal_quad_format,
        c4x_single_format, c4x_extended_format, real_internal_format): Remove
        initialization of log2_b.
        * real.h (i370_single_format, i370_double_format): Declarations removed.
        * c-cppbuiltin.c (builtin_define_float_constants): Consider the log2_b
        field to always be one.

2007-05-21  Andreas Schwab  <schwab@suse.de>

        * config/ia64/ia64.c (emit_predicate_relation_info): Fix use of
        NOTE_INSN_BASIC_BLOCK_P.
        (process_for_unwind_directive): Likewise.

2007-05-21  Nathan Sidwell  <nathan@codesourcery.com>

        * builtins.c (expand_builtin_setjmp_setup): Update comment.
        * function.h (struct function): Move va_list_gpr_size,
        va_list_fpr_size, function_frequency to front of bitfields.  Add
        calls_unwind_init.
        (current_function_calls_unwind_init): New.
        * except.c (expand_builtin_unwind_init): Set
        current_function_calls_unwind_init not
        current_function_has_nonlocal_label.
        * reload1.c (has_nonexceptional_receiver): New.
        (reload): Use it and current_function_calls_unwind_init to
        determine whether call-saved regs must be saved.

2007-05-20  Jan Hubicka  <jh@suse.cz>

        * gengtype.c (adjust_field_rtx_def): Use NOTE_KIND instead of
        NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P when possible.
        * ddg.c (create_ddg): LIkewise.
        * final.c (final): Remove hunk moving line numbernotes around since
        they are no longer present at this stage.
        (final_scan_insn): Use NOTE_KIND instead of
        NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P when possible.
        (output_asm_label): Likewise.
        * reorg.c (dbr_schedule): Likewise.
        * haifa-sched.c (unlink_other_notes): Likewise.
        * mode-switching.c (optimize_mode_switching): Likewise.
        * graph.c (start_bb): Likewise.
        * rtl.def (NOTE): Update description.
        * jump.c (squeeze_notes): Delete.
        (mark_jump_label): Use NOTE_KIND instead of NOTE_LINE_NUMBER; use
        NOTE_INSN_BASIC_BLOCK_P when possible.
        * ifcvt.c (dead_or_predicable): Remove call of squeeze_notes.
        * dwarf2out.c (gen_label_die): Use NOTE_KIND instead of
        NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P when possible.
        (dwarf2out_var_location): Likewise.
        * cfgbuild.c (make_edges): Likewise.
        (find_basic_blocks_1): Likewise.
        * function.c (reorder_blocks_1): Likewise.
        (epilogue_done): Likewise.
        (reposition_prologue_and_epilogue_notes): Likewise.
        * print-rtl.c (print_rtx): Likewise; drop code for printing line number
        notes.
        (print_rtl): Likewise.
        (print_rtl_single): Likewise.
        * gcse.c (insert_insn_start_bb): Likewise.
        * alias.c (init_alias_analysis): Likewise.
        * calls.c (fixup_tail_calls): Likewise.
        * except.c (sjlj_emit_function_enter): Likewise.
        * emit-rtl.c (add_insn_after): Likeiwse.
        (emit_label_before): Likewise.
        (emit_label_after): Likewise.
        (emit_note_before, emit_note_after, emit_note): Update
        parameter to be enum insn_note; do not deal with source
        files.
        * cfgcleanup.c (merge_blocks_move_predecessor_nojumps):
        Use NOTE_KIND instead of NOTE_LINE_NUMBER; use NOTE_INSN_BASIC_BLOCK_P
        when possible.
        (merge_blocks_move_successor_nojumps): Simplify now when
        we don't have BLOCK notes.
        (try_optimize_cfg): Likewise.
        * cfglayout.c (skip_insns_after_block): Likewise.
        (record_effective_endpoints): Likewise.
        (duplicate_insn_chain): Likewise.
        * varasm.c (output_constant_pool_1): Likewise.
        * sched-deps.c (sched_analyze): Likewise.
        * rtl.c (NOTE_INSN_MAX_isnt_negative_adjust_NOTE_INSN_BIAS):
        Exterminate.
        (note_insn_name): Simplify now when NOTE_INSN_BIAS is gone.
        * rtl.h (NOTE_SOURCE_LOCATION, NOTE_EXPANDED_LOCATION): Exterminate.
        (SET_INSN_DELETED): Simplify.
        (NOTE_LINE_NUMBER): Exterminate.
        (NOTE_LINE_KIND): New.
        (NOTE_INSN_BASIC_BLOCK_P): Update.
        (enum insn_note): Simplify.
        (GET_NOTE_INSN_NAME) Simplify.
        (emit_note_before, emit_note_after, emit_note): Update prototype.
        (squeeze_notes): Remove.
        * sched-int.h (NOTE_NOT_BB_P): Update.
        * resource.c (mark_target_live_regs): Update.
        * sched-rgn.c (debug_dependencies): Update.
        * sched-vis.c (print_insn): Update.
        * config/alpha/alpha.c (alpha_handle_trap_shadows): Update.
        * config/i386/i386.c (ix86_output_function_epilogue): Update.
        * config/sh/sh.c (sh_adjust_unroll_max): Function dead since gcc 4.0.0.
        (TARGET_ADJUST_UNROLL_MAX): Likewise.
        (split_branches): Update.
        (sh_optimize_target_register_callee_saved): Remove hunk dead since gcc
        4.0.0.
        (sh_adjust_unroll_max): Exterminate.
        * config/c4x/c4x.c (c4x_reorg): Use SET_INSN_DELETED.
        * config/m68hc11/m68hc11.c (m68hc11_check_z_replacement): Likewise.
        (m68hc11_reorg): Likewise.
        * config/ia64/ia64.c (emit_insn_group_barriers): Update.
        (emit_predicate_relation_info): Update.
        (process_for_unwind_directive): Update.
        * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Update.
        (output_call): Update.
        * config/pa/pa.c (output_lbranch): Update.
        (output_millicode_call): Update.
        (output_call): Update.
        (pa_combine_instructions): Update.
        * config/mips/mips.c (mips16_gp_pseudo_reg): Update.
        * config/bfin/bfin.c (gen_one_bundle): Update.
        * cfgrtl.c (can_delete_note_p): Update.
        (delete_insn): Update.
        (rtl_merge_blocks): Update.
        (commit_one_edge_insertion): Update.
        (rtl_verify_flow_info): Update.
        * stmt.c (expand_case): Do not call squeeze_notes.

2007-05-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        PR c++/11856
        PR c/12963
        PR c/23587
        PR other/29694
        * c.opt (Wtype-limits): New.
        * doc/invoke.texi (Wtype-limits): Document it.
        (Wextra): Enabled by -Wextra.
        * c-opts.c (c_common_post_options): Enabled by -Wextra.
        * c-common.c (shorten_compare): Warn with Wtype-limits.

2007-05-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/tmmintrin.h (_mm_alignr_epi32): Implement as always
        inlined function, not as a macro.
        (_mm_alignr_pi8): Ditto.
        * config/i386/ammintrin.h (_mm_extracti_si64): Ditto.
        (_mm_inserti_si64): Ditto.
        * config/i386/emmintrin.h (_mm_shuffle_pd): Ditto.
        (_mm_extract_epi16): Ditto.
        (_mm_insert_epi16): Ditto.
        (_mm_shufflehi_epi16): Ditto.
        (_mm_shufflelo_epi16): Ditto.
        (_mm_shuffle_epi32): Ditto.
        * config/i386/xmmintrin.h (_mm_set_ss): Use 0.0f for float constant.
        * config/386/mm3dnow.h: Add __attribute__((__always_inline__)) to
        all functions.
        (_m_from_float): Add __extension__ to conversion.  Use 0.0f for
        float constant.
        (_m_to_float): Use C89 compatible assignment.

2007-04-20  Martin Michlmayr  <tbm@cyrius.com>

        PR target/32007
        * config/arm/lib1funcs.asm: Define __ARM_ARCH__ on v2/v3 machines.

2007-05-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * doc/invoke.texi (Wreturn-type): Complete description.
        (Wextra): Delete item about return-type warning.
        * c-decl.c: Delete redundant Wextra warning.

2007-05-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31585
        * config/i386/pmmintrin.h: Do not include xmmintrin.h
        * config/i386/xmmintrin.h (_mm_extract_pi16): Implement as always
        inlined function, not as a macro.
        (_mm_prefetch): Ditto.
        (_m_pextrw): Ditto.
        (_mm_insert_pi16): Ditto.
        (_m_pinsrw): Ditto.
        (_mm_shuffle_pi16): Ditto.  Add const to __N argument.
        (_m_pshufw): Ditto. Add const to __N argument.
        (_mm_shufle_ps): Ditto.  Add const to __mask argument.
        * config/i386/emmintrin.h (_mm_slli_epi16): Add const to __B argument.
        (_mm_slli_epi32): Ditto.
        (_mm_srli_si128): Implement as always inlined function, not as a macro.
        Add __inline to function declaration.
        (_mm_slli_si128): Ditto.

2007-05-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sfp-machine.h (FP_EX_INVALID, FP_EX_DENORM,
        FP_EXP_DIVZERO, FP_EX_OVERFLOW, FP_EX_UNDERFLOW, FP_EX_INEXACT):
        New constants.
        (struct fenv): New structure.
        (FP_HANDLE_EXCEPTIONS): New define.
        (FP_RND_NEAREST, FP_RND_ZERO, FP_RND_PINF, FP_RND_MINF): New constants.
        (_FP_DECL_EXP): New define.
        (FP_INIT_ROUNDMODE): New define.
        (FP_ROUNDMODE): New define.

2007-05-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Warning Options): Add -Wconversion-sign.
        (Wconversion): Update description.
        (Wconversion-sign): New.
        * c.opt (Wconversion-sign): New.
        * c-opts.c (c_common_post_options): Uninitialized Wconversion-sign
        means disabled for C++. Otherwise, take the status of Wconversion.
        * c-common.c (conversion_warning): Warn with either Wconversion or
        Wconversion-sign.
        (warnings_for_convert_and_check): Conditions are already checked by
        conversion_warning.
        (convert_and_check): Don't check warnings if the conversion failed.

2007-05-19 Andy Hutchinson <HutchinsonAndy@netscape.net>
           Anatoly Sokolov <aesok@dol.ru>

        * config/avr/avr-protos.h (expand_prologue, expand_epilogue,
        avr_epilogue_uses) : Add declaration.
        * config/avr/predicates.md (avr_sp_immediate_operand): New predicate.
        * config/avr/constraints.md (R): New constraint.
        config/avr/avr.md (SREG_ADDR, UNSPEC_SEI, UNSPEC_CLI,
        UNSPECV_PROLOGUE_SAVES, UNSPECV_EPILOGUE_RESTORES): New constants.
        (*pop1, *pop2, *pop3, *pop4, *pop5): Combine into ...
        (*addhi3_sp_R_pc2, *addhi3_sp_R_pc3): ... these patterns.
        (*movhi_sp, popqi, pophi, enable_interrupt, disable_interrupt,
        call_prologue_saves, epilogue_restores, return_from_epilogue,
        return_from_main_epilogue, return_from_interrupt_epilogue,
        return_from_naked_epilogue, prologue, epilogue): New patterns.
        (jump): Handle symbol reference.
        * config/avr/avr.c (out_adj_frame_ptr, out_set_stack_ptr,
        avr_output_function_prologue, avr_output_function_epilogue): Remove
        functions.
        (avr_init_machine_status, expand_prologue, expand_epilogue,
        avr_asm_function_end_prologue, avr_epilogue_uses,
        avr_asm_function_begin_epilogue): New functions.
        (prologue_size, epilogue_size, jump_tables_size): Remove global
        variables.
        (TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Remove.
        (TARGET_ASM_FUNCTION_END_PROLOGUE): Define.
        (TARGET_ASM_FUNCTION_BEGIN_EPILOGUE): Define.
        (avr_override_options): Initialise init_machine_status.
        (output_movhi): Handle all stack pointer loads.
        (out_movqi_r_mr, out_movqi_mr_r): Handle SREG_ADDR address.
        (avr_output_addr_vec_elt): Do not use variable jump_tables_size.
        * config/avr/avr.h (AVR_2_BYTE_PC, AVR_3_BYTE_PC): New.
        (EPILOGUE_USES) Redefine.
        (machine_function) Declare.

2007-05-19  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.c (mips_offset_within_alignment_p): Tweak comment.
        Use a single return statement.

2007-05-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/30250
        * builtins.c (do_mpfr_lgamma_r): New.
        (fold_builtin_2): Handle builtin gamma_r/lgamma_r.
        * tree.h (CASE_FLT_FN_REENT): New.

2007-05-18  Geoffrey Keating  <geoffk@apple.com>

        * dwarf2out.c (print_die): Use '%ld' not '%lu' to print a 'long'.
        (output_die): Use 'unsigned long' with %x.
        * sched-vis.c (print_value): Use 'unsigned HOST_WIDE_INT' and
        HOST_WIDE_INT_PRINT_HEX to print HOST_WIDE_INT.
        * tree-dump.c (dump_pointer): Use 'unsigned long' for %lx.

        * unwind-dw2.c (uw_identify_context): Use the CFA, not the IP.

2007-05-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/31989
        PR target/31681
        PR target/31666
        * config/i386/i386.c (init_cumulative_args): Set maybe_vaarg to
        true if function has no argument.

2007-05-18  DJ Delorie  <dj@redhat.com>

        * config/mips/mips.c (mips_offset_within_alignment_p): New.
        (mips_symbolic_constant_p): Call it for TPREL and DTPREL symbols.

2007-05-18  Uros Bizjak  <ubizjak@gmail.com>

        * longlong.h (__x86_64__): Add definitions for add_ssaaaa,
        sub_ddmmss, umul_ppmm, udiv_qrnnd, count_leading_zeros and
        count_trailing_zeros.
        (__i386__): Implement count_leading_zeros using __builtin_clz().
        Implement count_trailing_zeros usign __builtin_ctz().

2007-05-18  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/vxworks.h (ASM_PREFERRED_EH_DATA_FORMAT): Undefine.

2007-05-18  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/31344
        * expr.c (emit_move_change_mode): Change mode of push operands here.

2007-05-17  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31953
        * tree-vrp.c (set_value_range_to_value): Add equiv parameter.
        Change all callers.
        (set_value_range_to_null): Call set_value_range_to_value.
        (extract_range_from_comparison): Likewise.

2007-05-17  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * toplev.c (print_version): Output GMP/MPFR version info.

        * builtins.c (CASE_MATHFN_REENT): New macro.
        (mathfn_built_in): Use it.
        * builtins.def (BUILT_IN_GAMMA_R, BUILT_IN_GAMMAF_R,
        BUILT_IN_GAMMAL_R, BUILT_IN_LGAMMA_R, BUILT_IN_LGAMMAF_R,
        BUILT_IN_LGAMMAL_R): New.
        * doc/extend.texi: Document new builtins.

        PR middle-end/31796
        * builtins.c (do_mpfr_remquo): New.
        (fold_builtin_2): Handle BUILT_IN_DREM/BUILT_IN_REMAINDER.
        (fold_builtin_3): Handle BUILT_IN_REMQUO.

        PR middle-end/30251
        * builtins.c (fold_builtin_1): Handle y0, y1.
        (fold_builtin_2): Handle yn.

        PR middle-end/30251
        * builtins.c (do_mpfr_bessel_n): New.
        (fold_builtin_1): Handle BUILT_IN_J0 and BUILT_IN_J1.
        (fold_builtin_2): Handle BUILT_IN_JN.

2007-05-17  Danny Smith  <dannysmith@users.sourceforge.net>

        PR target/31965
        * config/i386/mingw32.h (_INTEGRAL_MAX_BITS): Define builtin as
        TYPE_PRECISION (intmax_type_node).

2007-05-17  Steve Ellcey  <sje@cup.hp.com>

        PR target/31850
        * reload.c (subst_reloads): Remove checking.

2007-05-17  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/31691
        * combine.c (simplify_set): Build a new src pattern instead of
        substituting its operands in the COMPARE case.

2007-05-17  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-vrp.c (finalize_jump_threads): Do not care about dominance info.
        (execute_vrp): Preserve loops through jump threading.
        * tree-ssa-threadupdate.c (thread_single_edge,
        dbds_continue_enumeration_p, determine_bb_domination_status,
        thread_through_loop_header): New functions.
        (create_edge_and_update_destination_phis,
        create_edge_and_update_destination_phis): Set loops for the new blocks.
        (prune_undesirable_thread_requests): Removed.
        (redirect_edges): Do not pretend that redirect_edge_and_branch can
        create new blocks.
        (thread_block): Do not call prune_undesirable_thread_requests.
        Update loops.
        (mark_threaded_blocks): Select edges to thread here.
        (thread_through_all_blocks): Take may_peel_loop_headers argument.
        Thread edges through loop headers independently.
        * cfgloopmanip.c (create_preheader, mfb_keep_just): Export.
        * tree-pass.h (TODO_mark_first_instance): New.
        (first_pass_instance): Declare.
        * cfghooks.c (duplicate_block): Put the block to the original loop
        if copy is not specified.
        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Preserve loops through
        jump threading.  Pass may_peel_loop_headers to
        thread_through_all_blocks according to first_pass_instance.
        * cfgloop.h (create_preheader): Declare.
        * tree-flow.h (thread_through_all_blocks): Declaration changed.
        * basic-block.h (mfb_keep_just, mfb_kj_edge): Declare.
        * passes.c (first_pass_instance): New variable.
        (next_pass_1): Set TODO_mark_first_instance.
        (execute_todo): Set first_pass_instance.

2007-05-17  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/24659
        * optabs.h (enum optab_index): Add OTI_vec_unpacks_float_hi,
        OTI_vec_unpacks_float_lo, OTI_vec_unpacku_float_hi,
        OTI_vec_unpacku_float_lo, OTI_vec_pack_sfix_trunc and
        OTI_vec_pack_ufix_trunc.
        (vec_unpacks_float_hi_optab): Define new macro.
        (vec_unpacks_float_lo_optab): Ditto.
        (vec_unpacku_float_hi_optab): Ditto.
        (vec_unpacku_float_lo_optab): Ditto.
        (vec_pack_sfix_trunc_optab): Ditto.
        (vec_pack_ufix_trunc_optab): Ditto.
        * genopinit.c (optabs): Implement vec_unpack[s|u]_[hi|lo]_optab
        and vec_pack_[s|u]fix_trunc_optab using
        vec_unpack[s|u]_[hi\lo]_* and vec_pack_[u|s]fix_trunc_* patterns
        * tree-vectorizer.c (supportable_widening_operation): Handle
        FLOAT_EXPR and CONVERT_EXPR.  Update comment.
        (supportable_narrowing_operation): New function.
        * tree-vectorizer.h (supportable_narrowing_operation): Prototype.
        * tree-vect-transform.c (vectorizable_conversion): Handle
        (nunits_in == nunits_out / 2) and (nunits_out == nunits_in / 2) cases.
        (vect_gen_widened_results_half): Move before vectorizable_conversion.
        (vectorizable_type_demotion): Call supportable_narrowing_operation()
        to check for target support.
        * optabs.c (optab_for_tree_code) Return vec_unpack[s|u]_float_hi_optab
        for VEC_UNPACK_FLOAT_HI_EXPR, vec_unpack[s|u]_float_lo_optab
        for VEC_UNPACK_FLOAT_LO_EXPR and vec_pack_[u|s]fix_trunc_optab
        for VEC_PACK_FIX_TRUNC_EXPR.
        (expand_binop): Special case mode of the result for
        vec_pack_[u|s]fix_trunc_optab.
        (init_optabs): Initialize vec_unpack[s|u]_[hi|lo]_optab and
        vec_pack_[u|s]fix_trunc_optab.

        * tree.def (VEC_UNPACK_FLOAT_HI_EXPR, VEC_UNPACK_FLOAT_LO_EXPR,
        VEC_PACK_FIX_TRUNC_EXPR): New tree codes.
        * tree-pretty-print.c (dump_generic_node): Handle
        VEC_UNPACK_FLOAT_HI_EXPR, VEC_UNPACK_FLOAT_LO_EXPR and
        VEC_PACK_FIX_TRUNC_EXPR.
        (op_prio): Ditto.
        * expr.c (expand_expr_real_1): Ditto.
        * tree-inline.c (estimate_num_insns_1): Ditto.
        * tree-vect-generic.c (expand_vector_operations_1): Ditto.

        * config/i386/sse.md (vec_unpacks_float_hi_v8hi): New expander.
        (vec_unpacks_float_lo_v8hi): Ditto.
        (vec_unpacku_float_hi_v8hi): Ditto.
        (vec_unpacku_float_lo_v8hi): Ditto.
        (vec_unpacks_float_hi_v4si): Ditto.
        (vec_unpacks_float_lo_v4si): Ditto.
        (vec_pack_sfix_trunc_v2df): Ditto.

        * doc/c-tree.texi (Expression trees) [VEC_UNPACK_FLOAT_HI_EXPR]:
        Document.
        [VEC_UNPACK_FLOAT_LO_EXPR]: Ditto.
        [VEC_PACK_FIX_TRUNC_EXPR]: Ditto.
        * doc/md.texi (Standard Names) [vec_pack_sfix_trunc]: Document.
        [vec_pack_ufix_trunc]: Ditto.
        [vec_unpacks_float_hi]: Ditto.
        [vec_unpacks_float_lo]: Ditto.
        [vec_unpacku_float_hi]: Ditto.
        [vec_unpacku_float_lo]: Ditto.

2007-05-16  Uros Bizjak  <ubizjak@gmail.com>

        * soft-fp/README: Update for new files.
        * soft-fp/floattisf.c: New file.
        * soft-fp/floattidf.c: New file.
        * soft-fp/floattitf.c: New file.
        * soft-fp/floatuntisf.c: New file.
        * soft-fp/floatuntidf.c: New file.
        * soft-fp/floatuntitf.c: New file.
        * soft-fp/fixsfti.c: New file.
        * soft-fp/fixdfti.c: New file.
        * soft-fp/fixtfti.c: New file.
        * soft-fp/fixunssfti.c: New file.
        * soft-fp/fixunsdfti.c: New file.
        * soft-fp/fixunstfti.c: New file.
        * soft-fp/extendxftf.c: New file.
        * soft-fp/trunctfxf.c: New file.

        * libgcc-std.ver (__extendxftf2): Added to GCC_4.3.0 section.
        (__trunctfxf2): Ditto.

        * config/i386/libgcc-x86_64-glibc.ver (__addtf3, __divtf3, __eqtf2,
        __extenddftf2, __extendsftf2, __fixtfdi, __fixtfsi, __fixtfti,
        __fixunstfdi, __fixunstfsi, __fixunstfti, __floatditf, __floatsitf,
        __floattitf, __floatunditf, __floatunsitf, __floatuntitf, __getf2,
        __letf2, __multf3, __negtf2, __subtf3, __trunctfdf2, __trunctfsf2,
        __unordtf2): Exclude and add to GCC_4.3.0 section for x86_64 targets.

        * config/i386/t-fprules-softfp64: New file.
        * config/i386/sfp-machine.h: New file.
        * config.gcc (x86_64-*-linux*, x86_64-*-kfreebsd*-gnu,
        x86_64-*-knetbsd*-gnu): Add i386/t-fprules-softfp64
        and soft-fp/t-softfp to tmake_file.
        (i[34567]86-*-linux*, i[34567]86-*-kfreebsd*-gnu,
        i[34567]86-*-knetbsd*-gnu): Ditto for --enable-targets=all.

        * config/i386/t-linux64 (softfp_wrap_start): New.
        (softfp_wrap_end): New.
        * config/i386/i386.c (ix86_scalar_mode_supported): TFmode is
        supported for TARGET_64BIT.

2007-05-16  Rafael Avila de Espindola  <espindola@google.com>

        * c-common.c (c_common_signed_or_unsigned_type): Emulate
        c_common_unsigned_type behavior.

2007-05-16  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.c (legitimize_tls_address): Mark __tls_get_addr
        calls as pure.

2007-05-16  Eric Christopher  <echristo@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Move altivec register
        saving after stack push. Set sp_offset whenever we push.
        (rs6000_emit_epilogue): Move altivec register restore before
        stack push.

2007-05-16  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac: Allow sysroots to be relocated under $prefix as
        well as $exec_prefix.
        * configure: Regenerate.

2007-05-16  Richard Sandiford  <richard@codesourcery.com>

        Revert:

        2007-05-12  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac (gcc_gxx_include_dir): Use $(libsubdir_to_prefix).
        (gcc_tooldir): Likewise.
        * configure: Regenerate.
        * Makefile.in (libsubdir_to_prefix): New variable, based on the
        old configure.ac gcc_tooldir setting.
        (prefix_to_exec_prefix): New variable.
        (DRIVER_DEFINES): Use $(libsubdir_to_prefix)$(prefix_to_exec_prefix)
        rather than $(unlibsubdir)/../ to derive TOOLDIR_BASE_PREFIX.

2007-05-14  Janis Johnson  <janis187@us.ibm.com>

        * c-typeck.c (build_binary_op): Return early for error.

2007-05-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (record_estimate): Use GGC_NEW to allocate
        struct nb_iter_bound.
        (free_numbers_of_iterations_estimates_loop): Use ggc_free.
        * gengtype.c (open_base_files): Add cfhloop.h to the list of includes.
        * cfgloopmanip.c (place_new_loop): Vector larray is gc-allocated.
        * tree-scalar-evolution.c: Include gt-tree-scalar-evolution.h.
        (struct scev_info_str, scalar_evolution_info): Add GTY markers.
        (new_scev_info_str): Use GGC_NEW to allocate struct scev_info_str.
        (del_scev_info): Use ggc_free.
        (scev_initialize): Allocate scalar_evolution_info in gc memory.
        * loop-init.c: Include ggc.h.
        (loop_optimizer_init): Use GGC_CNEW to allocate struct loops.
        (loop_optimizer_finalize): Use ggc_free.
        * tree-ssa-loop.c (pass_tree_unswitch, pass_vectorize,
        pass_linear_transfom, pass_empty_loop, pass_complete_unroll,
        pass_iv_optimize): Add TODO_ggc_collect.
        * function.h (struct function): Remove skip marker from x_current_loops.
        * cfgloop.c: Include ggc.h.
        (flow_loops_free, flow_loop_free): Free the loop descriptions in gc
        memory.
        (establish_preds): Vector superloops is gc allocated.
        (alloc_loop): Allocate loop using GGC_CNEW.  Allocate head of
        loop->exits list.
        (flow_loops_find): Vector larray is gc allocated.
        (loop_exit_free): Use ggc_free.
        (rescan_loop_exit): Use GGC_NEW to allocate struct loop_exit.  Reflect
        that head of exits list is now not a part of struct loop.
        (record_loop_exits): Allocate exits table in gc memory.
        (get_loop_exit_edges, verify_loop_structure, single_exit): Reflect that
        head of exits list is now not a part of struct loop.
        * cfgloop.h (struct lpt_decision, struct nb_iter_bound,
        struct loop_exit): Add GTY marker.
        (struct loop): Add GTY marker.  Make superloops vector gc allocated.
        Add skip marker to aux field.  Make head of exits list a separate
        object.
        (struct loops): Add GTY marker.  Make larray vector gc allocated.
        Add param marker to exits table.
        (get_loops): Type changed.
        * Makefile.in (tree-scalar-evolution.o): Add gt-tree-scalar-evolution.h
        dependency.
        (cfgloop.o, loop-init.o): Add ggc.h dependency.
        (GTFILES): Add cfgloop.h and tree-scalar-evolution.c.
        * basic-block.h (struct basic_block_def): Remove skip marker from
        loop_father field.

2007-05-14  Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c (expand_builtin_mathfn): Use EXPAND_NORMAL instead
        of 0 in the call to expand_expr().
        (expand_builtin_mathfn_3): Ditto.
        (expand_builtin_interclass_mathfn): Ditto.
        (expand_builtin_cexpi): Ditto.
        (expand_builtin_int_roundingfn): Ditto.
        (expand_builtin_int_roundingfn_2): Ditto.
        (expand_builtin_pow): Ditto.
        (expand_builtin_powi): Ditto.
        (expand_builtin_bswap): Ditto.
        (expand_builtin_unop): Ditto.
        (expand_builtin_fabs): Ditto.
        (get_builtin_sync_mem): Use NULL_RTX instead of NULL in
        the call to expand_expr().
        (expand_builtin_sync_operation): Ditto.
        (expand_builtin_compare_and_swap): Ditto.
        (expand_builtin_lock_test_and_set): Ditto.
        * except.c (expand_builtin_eh_return_data_regno): Use EXPAND_NORMAL
        instead of 0 in the call to expand_expr().
        (expand_builtin_extract_return_addr): Ditto.
        (expand_builtin_eh_return): Ditto.
        (expand_eh_return): Ditto.
        * explow.c (expr_size): Ditto.
        * expr.c (optimize_bitfield_assignment_op): Ditto.
        (expand_assignement): Ditto.
        (store_expr): Ditto.
        (store_field): Ditto.
        (expand_expr_addr_expr_1): Use NULL_RTX instead of NULL in
        the call to expand_expr().
        (expand_expr_real_1) [COMPLEX_CST]: Use EXPAND_NORMAL instead of 0
        in the call to expand_expr().
        [CONSTRUCTOR, PLUS_EXPR, MINUS_EXPR, NEGATE_EXPR, ABS_EXPR,
        BIT_NOT_EXPR, LSHIFT_EXPR, LT_EXPR, TRUTH_NOT_EXPR]: Ditto.
        [VEC_UNPACK_HI_EXPR, VEC_UNPACK_LO]: Use expand_normal() instead
        of expand_expr().
        * optabs.c (expand_vec_shift_expr): Ditto.
        (expand_vec_cond_expr): Ditto.
        (vector_compare_rtx): Use EXPAND_STACK_PARM instead of 1 in the
        call to expand_expr().
        * stmt.c (expand_return): Use EXPAND_NORMAL instead of 0
        in the call to expand_expr().

2007-05-14  Dave Korn  <dave.korn@artimi.com>

        * genautomata.c (gen_regexp_el):  Allocate correct size for regexp.

2007-05-14  Rafael Avila de Espindola  <espindola@google.com>

        * c-common.c (warnings_for_convert_and_check): Use unsigned_type_for
        instead of c_common_unsigned_type.
        (c_common_unsigned_type): Remove.
        (shorten_compare): Use c_common_signed_or_unsigned_type instead of
        c_common_unsigned_type.
        (c_common_nodes_and_builtins): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * c-common.h (c_common_unsigned_type): Remove.
        * c-decl.c (grokdeclarator): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * c-format.c (check_format_types): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * c-objc-common.h (LANG_HOOKS_UNSIGNED_TYPE): Remove.
        * c-typeck.c (convert_for_assignment): Use unsigned_type_for instead of
        c_common_unsigned_type.
        * convert.c (convert_to_integer): Use unsigned_type_for instead of
        lang_hooks.types.unsigned_type.
        * expmed.c (make_tree): Use unsigned_type_for instead of
        lang_hooks.types.unsigned_type.
        * fold-const.c (fold_negate_expr): Use unsigned_type_for instead of
        lang_hooks.types.unsigned_type.
        (build_range_check): Likewise.
        (fold_unary): Likewise.
        (fold_binary): Likewise.
        (fold_ternary): Likewise.
        * langhooks-def.h (LANG_HOOKS_UNSIGNED_TYPE): Remove.
        * langhooks.h (lang_hooks_for_types): Remove unsigned_type.
        * tree.c (get_unsigned_type): New.
        (unsigned_type_for): Use get_unsigned_type instead of
        lang_hooks.types.unsigned_type.

2007-05-14  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k-protos.h: Rename m68k_interrupt_function_p
        to m68k_get_function_kind.  Update its prototype.
        * config/m68k/m68k.c (m68k_attribute_table): Add an entry for
        interrupt_thread.
        (m68k_interrupt_function_p): Return enum m68k_function_type
        instead of bool.  Rename to m68k_get_function_kind.
        (m68k_handle_fndecl_attribute): Reject interrupt_thread if the
        target is not fido.
        (m68k_compute_frame_layout): Don't mark any register for save
        if an interrupt_thread attribute is specified.
        (m68k_hard_regno_rename_ok): Update a use of
        m68k_interrupt_function_p.
        * config/m68k/m68k.h (EPILOGUE_USES): Update a use of
        m68k_interrupt_function_p.
        (m68k_function_type): New.
        * config/m68k/m68k.md (*return): Output a 'sleep' instruction
        for a function with an interrupt_thread attribute.
        * doc/extend.texi: Document the interrupt_thread attribute.

2007-05-13  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/31911
        * tree-ssa-pre.c (phi_translate): Make sure to cache results even
        if they didn't change the expression.

2007-05-13  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-scalar-evolution.c (resolve_mixers): Exported.
        * tree-scalar-evolution.h (resolve_mixers): Declare.
        * tree-data-ref.c (object_analysis, ptr_decl_may_alias_p,
        ptr_ptr_may_alias_p, may_alias_p, record_ptr_differ_p,
        record_record_differ_p, record_array_differ_p, array_ptr_differ_p,
        base_object_differ_p, base_addr_differ_p, analyze_array_indexes,
        init_array_ref, init_pointer_ref, analyze_indirect_ref,
        strip_conversion, analyze_offset_expr, address_analysis,
        object_analysis, analyze_offset): Removed.
        (dr_analyze_innermost, dr_analyze_indices, dr_analyze_alias,
        split_constant_offset, canonicalize_base_object_address,
        object_address_invariant_in_loop_p, disjoint_objects_p,
        dr_may_alias_p, dr_address_invariant_p): New functions.
        (create_data_ref): Use dr_analyze_innermost, dr_analyze_indices
        and dr_analyze_alias.
        (initialize_data_dependence_relation): Use dr_may_alias_p
        and object_address_invariant_in_loop_p.
        (compute_self_dependence): Handle the case when DDR_ARE_DEPENDENT (ddr)
        is chrec_dont_know.
        (find_data_references_in_stmt): Restrict the analysis of data references
        to the given loop nest.
        (find_data_references_in_loop): Made static.  Pass loop nest to
        find_data_references_in_stmt.
        (compute_data_dependences_for_loop): Use DR_VOPS.
        (free_data_ref): Free DR_VOPS.
        * tree-data-ref.h (struct first_location_in_loop): Replaced by ...
        (struct innermost_loop_behavior): ... new.
        (struct base_object_info): Replaced by ...
        (struct indices): ... new.
        (struct dr_alias): New.
        (enum data_ref_type): Removed.
        (struct data_reference): Consist of struct innermost_loop_behavior,
        struct indices and struct dr_alias.
        (DR_SET_ACCESS_FNS, DR_FREE_ACCESS_FNS): Removed.
        (DR_MEMTAG): Renamed to ...
        (DR_SYMBOL_TAG): ... this.
        (find_data_references_in_loop): Declaration removed.
        * tree-vect-analyze.c (vect_compute_data_ref_alignment): Use DR_INIT
        instead of DR_OFFSET_MISALIGNMENT.  DR_ALIGNED_TO is never NULL.
        (vect_analyze_data_refs): Use DR_SYMBOL_TAG instead of DR_MEMTAG.
        * tree-vect-transform.c (vect_create_data_ref_ptr): Ditto.

2007-05-13  Revital Eres  <eres@il.ibm.com>

        * tree-ssa-dse.c (get_use_of_stmt_lhs): New function
        which walks virtual def-use chains to find redundant stores.
        (dse_optimize_stmt): Call it.

2007-05-12  Steven Bosscher  <steven@gcc.gnu.org>

        * gcse.c (gcse_main): Do jump bypassing in CPROP2.
        * passes.c (init_optimization_passes): Move pass_jump_bypass
        after loop2.

        * basic-block.h (bb_has_eh_pred): Fix style issue.

2007-05-12  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/31848
        * loop-invariant.c (move_invariant_reg): If we move an insn
        with a REG_EQUAL note, and that insn is not always executed,
        remove the REG_EQUAL note.

2007-05-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31797
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Do not
        propagate into a stmt that has volatile ops.

2007-05-12  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac (gcc_gxx_include_dir): Use $(libsubdir_to_prefix).
        (gcc_tooldir): Likewise.
        * configure: Regenerate.
        * Makefile.in (libsubdir_to_prefix): New variable, based on the
        old configure.ac gcc_tooldir setting.
        (prefix_to_exec_prefix): New variable.
        (DRIVER_DEFINES): Use $(libsubdir_to_prefix)$(prefix_to_exec_prefix)
        rather than $(unlibsubdir)/../ to derive TOOLDIR_BASE_PREFIX.

2007-05-11  Silvius Rus  <rus@google.com>

        * Makefile.in (OBJS-common): Add tree-ssa-alias-warnings.o.
        * c-common.c (strict_aliasing_warning): Modify -Wstrict-aliasing logic.
        * c-common.h (strict_aliasing_warning): Change return type.
        * c-opts.c (c_common_handle_option): Add call to set_Wstrict_aliasing.
        * c-typeck.c (build_indirect_ref): Add call to strict_aliasing_warning.
        (build_c_cast): Condition call to strict_aliasing_warning.
        * doc/invoke.texi: Update description of -Wstrict-aliasing[=n].
        * flags.h (set_Wstrict_aliasing): Declare.
        * opts.c (set_Wstrict_alising): Define, add call to.
        * tree-flow.h (strict_aliasing_warning_backend): Declare.
        * tree-ssa-alias-warnings.c: New file.
        * tree-ssa-alias.c (compute_may_aliases): Add call to
        strict_aliasing_warning_backend.

2007-05-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-loop-linear.c (gather_interchange_stats, try_interchange_loops):
        Use loop_depth and loop_outer accessor functions.
        * tree-ssa-loop-im.c (outermost_invariant_loop, set_level,
        determine_invariantness_stmt, move_computations_stmt): Ditto.
        * cfgloopmanip.c (fix_bb_placement, fix_loop_placement, remove_path,
        add_loop, loopify, unloop, fix_loop_structure): Ditto.
        * tree-ssa-loop-manip.c (find_uses_to_rename_use): Ditto.
        * tree-scalar-evolution.c (interpret_loop_phi,
        compute_scalar_evolution_in_loop, analyze_scalar_evolution_in_loop,
        instantiate_parameters_1, scev_const_prop): Ditto.
        * cfghooks.c (make_forwarder_block): Ditto.
        * cfgloopanal.c (mark_irreducible_loops, mark_loop_exit_edges): Ditto.
        * modulo-sched.c (loop_canon_p): Ditto.
        * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg,
        slpeel_can_duplicate_loop_p): Ditto.
        * lambda-code.c (invariant_in_loop_and_outer_loops): Ditto.
        * tree-cfg.c (tree_duplicate_sese_region): Ditto.
        * cfgloop.c (flow_loop_dump, flow_loop_nodes_find, rescan_loop_exit,
        cancel_loop, verify_loop_structure): Ditto.
        (flow_loop_nested_p, superloop_at_depth, flow_loop_free,
        add_bb_to_loop, remove_bb_from_loops, find_common_loop): Use the
        superloops vector instead of "pred" array.
        (establish_preds): Take father loop as an argument.  Initialize the
        superloops vector.
        (flow_loop_tree_node_add): Pass father loop to establish_preds.  Do not
        initialize loop->outer.
        (flow_loop_tree_node_remove): Truncate the superloops vector.
        * cfgloop.h (struct loop): Removed field "outer", fields "depth" and
        "pred" merged to "superloops" vector.
        (loop_depth, loop_outer): New.
        (fel_init): Use loop_outer.

2007-05-11  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c: Include gt-cgraphunit.h
        (static_ctors, static_dtors): New static vars.
        (record_cdtor_fn, build_cdtor, cgraph_build_cdtor_fns): New functions,
        based on implementation in c-common.c
        (cgraph_finalize_function): Call record_cdtor_fn.
        (cgraph_optimize): Call cgraph_build_cdtor_fns.
        * decl.c (finish_function): Do not call c_record_cdtor_fn.
        (c_write_global_declarations): Do not call c_build_cdtor_fns.
        * c-common.c (static_ctors, static_dtors, c_record_cdtor_fn,
        build_cdtor, c_build_cdtor_fns): Remove.
        * c-common.h (static_ctors, static_dtors, c_record_cdtor_fn,
        c_build_cdtor_fns): Remove prototype.

2007-05-11  Paolo Carlini  <pcarlini@suse.de>

        PR other/31852
        * builtin-types.def: Add BT_FN_PTR_CONST_PTR_INT_SIZE.
        * builtins.def: Add BUILT_IN_MEMCHR, use the latter.
        * builtins.c (fold_builtin_memchr): New.
        (expand_builtin_memchr): Call the latter.
        (expand_builtin, fold_builtin_3): Deal with BUILT_IN_MEMCHR.
        * doc/extend.texi ([Other built-in functions provided by GCC]):
        Document memchr.

2007-05-11  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (GPR0_REGNUM, FPR0_REGNUM, FPR2_REGNUM,
        PFPO_CONVERT, PFPO_OP_TYPE_SF, PFPO_OP_TYPE_DF, PFPO_OP_TYPE_TF,
        PFPO_OP_TYPE_SD, PFPO_OP_TYPE_DD, PFPO_OP_TYPE_TD, PFPO_OP0_TYPE_SHIFT,
        PFPO_OP1_TYPE_SHIFT): Constants added.
        (DFP_ALL): Mode macro defined.
        ("*trunc<BFP:mode><DFP_ALL:mode>2", "*trunc<DFP_ALL:mode><BFP:mode>2",
        "*extend<BFP:mode><DFP_ALL:mode>2", "*extend<DFP_ALL:mode><BFP:mode>2"):
        Insn definitions added.
        ("trunc<BFP:mode><DFP_ALL:mode>2", "trunc<DFP_ALL:mode><BFP:mode>2",
        "extend<BFP:mode><DFP_ALL:mode>2", "extend<DFP_ALL:mode><BFP:mode>2"):
        Expanders added.

2007-05-10  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31885
        * tree-chrec.c (chrec_contains_undetermined): Do not consider NULL_TREE
        to be undetermined.
        (automatically_generated_chrec_p): Return false for NULL.

2007-05-08  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (MOVE_RATIO): Define.

2007-05-10  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (sparc-wrs-vxworks): New target.
        * config/sparc/vxworks.h, config/sparc/t-vxworks: New files.
        * config/sparc/sparc-protos.h (sparc_emit_call_insn): Declare.
        * config/sparc/sparc.h: Include vxworks-dummy.h.
        (PRINT_OPERAND_ADDRESS): Extend SYMBOL_REF handling to
        include LABEL_REFs too.
        * config/sparc/sparc.c (sparc_expand_move): Don't assume that
        _GLOBAL_OFFSET_TABLE_ - label_ref is a link-time constant on
        VxWorks.
        (legitimize_pic_address): Handle LABEL_REFs like SYMBOL_REFs
        on VxWorks.
        (load_pic_register): Use gen_vxworks_load_got for VxWorks.
        (sparc_emit_call_insn): New function.
        (sparc_function_ok_for_sibcall): Restrict sibcalls to locally-binding
        functions when generating VxWorks PIC.
        * config/sparc/sparc.md (vxworks_load_got): New pattern.
        (call, call_value): Use sparc_emit_call_insn instead of
        emit_call_insn.

2007-05-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_output_literal): Don't use #if.

2007-05-09  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_output_literal): Mask out high bits
        for floating-point values if HOST_BITS_PER_LONG > 32.  Use split_double
        instead of operand_subword.

2007-05-08  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (LOCAL_ALIGNMENT): Define.
        * config/bfin/bfin.c (bfin_local_alignment): New function.
        * config/bfin/bfin-protos.h (bfin_local_alignment): Declare it.

2007-05-08  Chao-ying Fu  <fu@mips.com>

        * doc/md.texi (msub@var{m}@var{n}4, usub@var{m}@var{n}4): Document.
        * optabs.h (OTI_smsub_widen, OTI_umsub_widen): New optab_indexes.
        (smsub_widen_optab, umsub_widen_optab): Define.
        * optabs.c (init_optabs): Initialize smsub_widen_optab and
        umsub_widen_optab.
        * genopinit.c (optabs): Fill in smsub_widen_optab and
        umsub_widen_optab.
        * expr.c (expand_expr_real_1): Try to use smsub_widen_optab
        and umsub_widen_optab to implement multiply-subtract sequences.
        * config/mips/mips.md (*msac<u>_di): Rename to...
        (<u>msubsidi4): ...this.  Extend condition to include
        GENERATE_MADD_MSUB and TARGET_DSPR2.  Change the constraint
        of operand 0 to "ka" and use the three-operand form of msub<u>
        for TARGET_DSPR2.
        * config/mips/mips-dspr2.md (mips_msub, mips_msubu): Convert
        to define_expands.

2007-05-08  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/28011
        * reload.c (push_reload): Set dont_share if IN appears in OUT
        also when IN is a PLUS rtx.
        (reg_overlap_mentioned_for_reload_p): Return true if X and IN
        are same PLUS rtx.

2007-05-08  Kazu Hirata  <kazu@codesourcery.com>

        * emit-rtl.c (unshare_all_rtl_1): Don't copy DECL_RTL.  Don't
        call unshare_all_decls.
        (unshare_all_rtl): Adjust the call to unshare_all_rtl_1.
        (unshare_all_decls): Remove.

2007-05-08  Simon Martin  <simartin@users.sourceforge.net>

        PR 31847
        * tree-dump.c (dump_options): Don't use TDF_DIAGNOSTIC in "*-all" tree
        dumps.

2007-05-08  Sandra Loosemore  <sandra@codesourcery.com>
            Nigel Stephens  <nigel@mips.com>

        * config/mips/mips.h (MAX_FPRS_PER_FMT): Renamed from FP_INC.
        Update comments and all uses.
        (MIN_FPRS_PER_FMT): Define.
        * config/mips/mips.c (function_arg): Fix to correctly handle
        the -mips32r2 -mfp64 -mabi=32 case.
        (override_options): Enable use of odd-numbered registers for
        SFmode values on MIPS32.
        (mips_save_reg_p): Save whole floating-point register pair if
        either half is used.
        (compute_frame_size): Fix comment.

2007-05-08  Jie Zhang  <jie.zhang@analog.com>

        * config/bfin/bfin-protos.h (bfin_expand_epilogue): Add a third
        argument of type bool.
        * config/bfin/bfin.c (add_to_reg): Add epilogue_p as a fourth
        argument. Safely select temporary P register according to it.
        (do_link): Change call site of add_to_reg accordingly.
        (do_unlink): Add epilogue_p as a fourth argument and pass it
        to add_to_reg.
        (expand_interrupt_handler_epilogue): Change call of do_unlink
        accordingly.
        (bfin_expand_prologue): Add a third argument sibcall_p.
        * config/bfin/bfin.md (epilogue): Change call of
        bfin_expand_epilogue accordingly.
        (sibcall_epilogue): Likewise.
        (eh_return_internal): Likewise.

        * config/bfin/bfin-protos.h (enum bfin_cpu): Add
        BFIN_CPU_BF534, BFIN_CPU_BF536 and BFIN_CPU_BF561.
        * config/bfin/bfin.c (bfin_handle_option): Handle
        -mcpu=bf534, -mcpu=bf536 and -mcpu=bf561.
        * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS):
        Support bf534, bf536 and bf561.
        * doc/invoke.texi (Blackfin Options): Document -mcpu and -msim.

2007-05-08  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31854
        * config/i386/i386.c (ix86_function_regparm): Process local
        functions only when TREE_CODE (decl) equals FUNCTION_DECL.

2007-05-07  Mike Stump  <mrs@apple.com>

        * doc/invoke.texi (Warning Options): Document that -Wempty-body
        also checks for and while statements in C++.

2007-05-07  Nathan Froyd  <froydnj@codesourcery.com>

        * gcc.c (at_file_supplied): New variable.
        (main): Set it if we expanded argv.
        (do_spec_1): Pass an @-file to the linker if we were called with
        an @-file argument and HAVE_GNU_LD.
        * collect2.c (at_file_supplied): New variable.
        (response_file): New variable.
        (collect_exit): Unlink response_file if necessary.
        (handler): Likewise.
        (do_wait): Likewise.
        (main): Set at_file_supplied if we expanded argv.
        (collect_execute): Pass an @-file to subprocesses if we were called
        with an @-file argument.
        * configure.ac: Add define for HAVE_GNU_LD.
        * configure: Regenerate.
        * config.in: Regenerate.

2007-05-07  Naveen.H.S  <naveen.hs@kpitcummins.com>

        * config/m32c/muldiv.md (mulhisi3_c): Limit the mode of the 2nd
        operand to HI mode.
        (mulsi3): New.
        (divsi3): New.
        (udivsi3): New.

2007-05-07  Jayant Sonar  <jayants@kpitcummins.com>

        * config/m32c/m32c.c (SYMBOL_FLAG_FUNCVEC_FUNCTION): Define.
        (TARGET_ENCODE_SECTION_INFO): Re-define.
        (m32c_encode_section_info): New
        (function_vector_handler): New
        (current_function_special_page_vector): New
        (m32c_special_page_vector_p): New.
        * config/m32c/m32c-protos.h (m32c_special_page_vector_p):
        Prototype.
        * config/m32c/jump.md: Added instruction JSRS for functions
        with attribute "function_vector".
        * doc/extend.texi (function_vector): Added description
        for M16C, M32C targets.

2007-05-07  DJ Delorie  <dj@redhat.com>

        PR 31794
        * config/m32c/shift.md (ashlpsi3_i, ashrpsi3_i, ashlpsi3,
        ashrpsi3, lshrpsi3): Update shift count constraint.

2007-05-07  Danny Smith  <dannysmith@users.sourceforge.net>
            Nathan Froyd  <froydnj@codesourcery.com>

        PR 22133
        * c-incpath.c (add_path): Strip trailing path separators.

2007-05-07  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Reset cfg_altered.
        Free dominance info before purging EH edges.
        (eliminate_degenerate_phis): Likewise.
        (propagate_rhs_into_lhs): Set cfg_altered to true instead of 1.

2007-05-07  Jan Hubicka  <jh@suse.cz>

        * gimplify.c (gimplify_expr): Do not crash when folding
        (void *)(int)&a + 4.

2007-05-07  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR driver/31694
        * c-opts.c (lang_fortran): Make it non static.
        * c-common.h (lang_fortran): New prototype.
        * c-cppbuiltin.c (c_cpp_builtins): Create a __GFORTRAN__ if the
        -lang-fortran option was passed by the driver.

2007-05-06  Eric Botcazou  <ebotcazou@adacore.com>

        * timevar.c (timevar_print): Test ENABLE_ASSERT_CHECKING instead
        of ASSERT_CHECKING.  Tweak message.

2007-05-06  Revital Eres  <eres@il.ibm.com>

        PR 30957
        * loop-unroll.c (insert_var_expansion_initialization):
        Initialize the expansions with -zero instead of +zero.

2007-05-05  Aurelien Jarno  <aurelien@aurel32.net>

        * config/pa/pa.md: Split tgd_load, tld_load and tie_load
        into pic and non-pic versions. Mark r19 as used for
        tgd_load_pic, tld_load_pic and tie_load_pic. Mark r27 as used
        for tgd_load, tld_load and tie_load .
        * config/pa/pa.c (legitimize_tls_address): Emit pic or non-pic
        version of tgd_load, tld_load and tie_load depending on the
        value of flag_pic.

2007-05-04  Ulrich Drepper  <drepper@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        * crtstuff.c (HIDDEN_DTOR_LIST_END): New macro.
        (__do_global_dtors_aux): Use more paranoid loop to run
        destructors if HIDDEN_DTOR_LIST_END.
        (__DTOR_END__): Export as a hidden symbol when HIDDEN_DTOR_LIST_END.

2007-05-04  Jakub Jelinek  <jakub@redhat.com>

        * varasm.c (align_variable): Don't increase alignment for
        DECL_THREAD_LOCAL_P variables above BITS_PER_WORD through
        DATA_ALIGNMENT or CONSTANT_ALIGNMENT.

2007-05-04  Josh Conner  <jconner@apple.com>

        * basic-block.h (cdi_direction): Assign values to all enumeration
        constants.
        (dom_computed): Remove.
        (dom_info_state): New.
        (set_dom_info_availability): New.
        * tree-ssa-loop-im.c (determine_invariantness): Initialize
        walk_data.dom_direction.
        * cfghooks.c (delete_basic_block): Use dom_info_available_p()
        instead of dom_computed[].
        (split_edge): Likewise.
        (create_basic_block): Likewise.
        (merge_blocks): Likewise.
        * ifcvt.c (find_if_header): Likewise.
        * tree-cfgcleanup.c (cleanup_tree_cfg): Likewise.
        * tree-ssa-dce.c (remove_dead_stmt): Likewise.
        * tree-ssa.c (verify_ssa): Likewise.
        * tree-cfg.c (tree_verify_flow_info): Likewise.
        (remove_edge_and_dominated_blocks): Likewise.
        * dominance.c (dom_computed): Make static.
        (calc_dfs_tree_nonrec): Change third param to a bool.
        (calc_dfs_tree): Change second param to a bool.
        (calc_idioms): Change second param to a bool.  Use
        dom_convert_dir_to_idx.
        (init_dom_info): Validate dir before using.
        (dom_convert_dir_to_idx): New.
        (calculate_dominance_info): Use dom_convert_dir_to_idx.  New
        variable 'reverse' used for calling calc_dfs_tree and calc_idoms.
        (free_dominance_info): Use dom_convert_dir_to_idx.
        (get_immediate_dominator): Likewise.
        (set_immediate_dominator): Likewise.
        (get_dominated_by): Likewise.
        (redirect_immediate_dominators): Likewise.
        (nearest_common_denominator): Likewise.
        (dominated_by_p): Likewise.
        (bb_dom_dfs_in): Likewise.
        (bb_dom_dfs_out): Likewise.
        (recount_dominator): Likewise.
        (iterate_fix_dominators): Likewise.
        (add_to_dominance_info): Likewise.
        (delete_from_dominance_info): Likewise.
        (first_dom_son): Likewise.
        (next_dom_son): Likewise.
        (dom_info_available_p): Likewise.
        (dom_info_state): New.
        (set_dom_info_availability): New.

2007-05-04  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("fix_trunc<mode>di2", "fix_trunc<mode>si2"):
        Expander removed.
        ("fix_trunc<DSF:mode><GPR:mode>2"): Expander added.

2007-05-04  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.md (adddi3, adddi_carry): Delete.
        (subdi3, subdi_carry): Delete.

2007-05-04  Jan Hubicka  <jh@suse.cz>
            Richard Guenther  <rguenther@suse.de>

        * opts.c (decode_options): Do not fiddle with inlining
        parameters in case of optimizing for size.
        * ipa-inline.c (cgraph_decide_recursive_inlining): When optimizing
        for size do nothing.
        (cgraph_decide_inlining_of_small_function): When optimizing for
        size never inline functions increasing caller size.
        (cgraph_early_inlining): Inline for size when optimizing for size.

2007-04-18  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (<optab>di3): Now a define_expand which expands
        logical operations piecewise.
        (<optab>di_zesidi_di, <optab>di_sesidi_di, negdi2, one_cmpldi2,
        zero_extendsidi2, subdi_di_zesidi, subdi_zesidi_di, subdi_di_sesidi,
        subdi_sesidi_di): Delete.
        (add_with_carry): Produce carry in CC instead of a DREG to shorten
        the generated sequence.  Allow three-reg add in constraints.  Rewrite
        the rtl expression for carry to avoid zero_extend of a constant.
        (sub_with_carry): New pattern.
        (adddi3, subdi3): Change into define_expand.  For subtract, generate a
        different sequence not involving jumps.
        (notbi): Now a named pattern.

2007-05-04  Bradley Lucier  <lucier@math.purdue.edu>

        * doc/invoke.texi (i386 and x86-64 Options) [-mpc32, -mpc64, -mpc80]:
        Add the note about a significant loss of accuracy of some
        mathematical routines when these options are used.

2007-05-04  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * haifa-sched.c (rtx_vec_t): New typedef.
        (contributes_to_priority_p): Extract piece of priority () into new
        static function.
        (priority): Use the function.  Add assertion.
        (rank_for_schedule, set_priorities): Add assertion to check that
        insn's priority is initialized.
        (clear_priorities, calc_priorities): Change signature.  Make it update
        all relevant insns.  Update all callers ('add_to_speculative_block ()'
        and 'create_block_check_twin ()').
        * sched-int.h (struct haifa_insn_data): Remove field 'priority_known'.
        Add new field 'priority_status'.
        (INSN_PRIORITY_STATUS): New macro.
        (INSN_PRIORITY_KNOWN): Change to use INSN_PRIORITY_STATUS.

2007-05-04  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * sched-ebb.c (debug_ebb_dependencies): New static function.
        (init_ready_list): Use it.

        * sched-rgn.c (debug_dependencies): Split into 'debug_dependencies ()'
        with changed signature and 'debug_rgn_dependencies ()'.
        (debug_rgn_dependencies): New static function.
        (init_ready_list): Use it.

        * sched-int.h (debug_dependencies): Declare.

2007-05-04  Andreas Krebbel  <krebbel1@de.ibm.com>

        * libgcc-std.ver (__ffssi2): Added to GCC_4.3.0 section.

2007-05-04  Dirk Mueller  <dmueller@suse.de>

        * c.opt(Wmain,ffreestanding): Enable for C++,ObjC++.

2007-05-03  Jan Hubicka  <jh@suse.cz>

        * fold-const.c (fold_unary): Convert (T1)(X op Y) into ((T1)X op (T1)Y),
        for pointer type in more cases than before.

        * gimplify.c (gimplify_expr): Fold (void *)&a + 4.

        * tree-object-size.c (plus_expr_object_size): When operand size is
        unknown, return unknown.

2007-05-03  Dirk Mueller  <dmueller@suse.de>

        * doc/invoke.texi (-m386,-m486,-mpentium,-mpentiumpro): Remove.

        * config/i386/i386.h (CC1_CPU_SPEC): Remove handling for deprecated
        options.

        * config/i386/i386.opt (m386,m486,mpentium,mpentiumpro): Remove.

2007-05-03  Janis Johnson  <janis187@us.ibm.com>

        * doc/sourcebuild.texi (Test Directives) Clarify dg-excess-errors.

2007-05-03  Joseph Myers  <joseph@codesourcery.com>

        * config/soft-fp/double.h, config/soft-fp/extended.h,
        config/soft-fp/floatundidf.c, config/soft-fp/floatundisf.c,
        config/soft-fp/floatunsidf.c, config/soft-fp/floatunsisf.c,
        config/soft-fp/op-2.h, config/soft-fp/op-4.h,
        config/soft-fp/op-common.h, config/soft-fp/quad.h: Update from
        glibc CVS.

2007-05-03  Ian Lance Taylor  <iant@google.com>

        * config/rs6000/rs6000.c (rs6000_override_options): Don't set
        MASK_PPC_GFXOPT for 8540 or 8548.

2007-05-03  Uros Bizjak  <ubizjak@gmail.com>

        * tree-vect-transform.c (vect_update_inits_of_drs): Use
        vect_print_dump_info() to output debug information.

2007-05-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31768
        * config/i386/i386.c (print_operand) ['z']: Output 'w' for
        operands of size 2 when operand is not MEM_P.

2007-05-03  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30565
        * lambda-code.c (perfect_nestify): Fix updating of dominators.

2007-05-03  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (addpdi3, us_truncpdisi2): New patterns.
        (umulsi3_highpart): Use them.
        * config/bfin/lib1funcs.asm (__umulsi3_highpart): Use unsigned move
        for final accumulator to D regisster tranfser.

2007-05-03  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/31699
        * tree-vect-analyze.c (vect_update_misalignment_for_peel): Remove wrong
        code.
        (vect_enhance_data_refs_alignment): Compute peel amount using
        TYPE_VECTOR_SUBPARTS instead of vf.
        * tree-vect-transform.c (vect_gen_niters_for_prolog_loop): Likewise.

2007-05-02  Brooks Moses  <brooks.moses@codesourcery.com>

        PR bootstrap/31776
        * system.h: Remove inclusion of double-int.h
        * tree.h: Include double-int.h
        * gengtype.c: Likewise
        * cfgloop.h: Likewise
        * Makefile.in: Adjust dependencies on double-int.h

2007-05-02  Eric Christopher  <echristo@apple.com>

        * config/darwin.h (TARGET_OPTION_TRANSLATE_TABLE): Translate
        -shared to -Zdynamiclib.

2007-05-02  Seongbae Park  <seongbae.park@gmail.com>

        PR c++/31663
        * c-common.c (strip_pointer_or_array_types): New function.
        * c-common.h (strip_pointer_or_array_types): New function declaration.

2007-05-03  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31771
        * tree-cfg.c (move_block_to_fn): Assign bb to the correct index.

2007-05-02  Paul Brook  <paul@codesourcery.com>

        * config/arm/bpabi.S (aeabi_lcmp): Fix result on overflow.

2007-05-02  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/29715
        * fold-const.c (fold_comparision): Remove the "foo++ == CONST"
        transformation.

2007-05-02  Nick Clifton  <nickc@redhat.com>

        * config/frv/predicates.md (symbolic_operand): Accept CONSTs.

2007-05-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31146
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): New
        argument, single_use_p.  If we have a single use that is
        a conversion to the definition rhs type, propagate that rhs.
        (forward_propagate_addr_expr): Pass single_use_p argument
        to forward_propagate_addr_expr_1.

2007-05-01  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_expand_sse_comi): Remove unused
        variable.

2007-05-01  Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>

        * doc/invoke.texi: Fix typo, 'AMD Family 10h core' instead of
        'AMD Family 10 core'.

2007-05-01  Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>

        * config/i386/i386.c (override_options): Accept k8-sse3, opteron-sse3
        and athlon64-sse3 as improved versions of k8, opteron and athlon64
        with SSE3 instruction set support.
        * doc/invoke.texi: Likewise.

2007-05-01  Dwarakanath Rajagopal <dwarak.rajagopal@amd.com>

        * config/i386/i386.c (override_options): Tuning 32-byte loop
        alignment for amdfam10 architecture. Increasing the max loop
        alignment to 24 bytes.

2007-05-01  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/constraints.md: New.
        * config/m68k/m68k.h (REG_CLASS_FROM_LETTER,
        CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P,
        EXTRA_CONSTRAINT): Remove.
        * config/m68k/m68k.md: Include constraints.md.
        * expr.c (expand_expr_real_1): Copy DECL_RTL before using it.

2007-05-01  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31739
        * tree-vrp.c (vrp_val_is_max): New static function.
        (vrp_val_is_min): New static function.
        (set_value_range_to_value): Use TYPE_{MAX,MIN}_VALUE rather than
        copying the node.
        (set_value_range): Use vrp_val_is_{max,min}.
        (extract_range_from_assert): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        (dump_value_range, vrp_meet): Likewise.
        (vrp_visit_phi_node): Likewise.
        * tree.c (build_distinct_type_copy): Revert change of 2007-04-27.

2007-05-01  Mark Mitchell  <mark@codesourcery.com>

        * config/i386/gmon-sol2.c (size_t): New type.
        (intptr_t): Likewise.
        (s_textsize): Declare as size_t.
        (sbrk): Declare.
        (monstartup): Use size_t for sizes.
        (_mcount): Save and restore registers.
        (internal_mcount): Pass 0 as the first argument to monstartup
        in 64-bit mode.
        (moncontrol): Convert pointer to appropriately sized integer
        before passing to profil.

2007-05-01  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/darwin-ldouble.c (__gcc_qunord): Define if
        __NO_FPRS__, not just if _SOFT_DOUBLE.
        * config/rs6000/libgcc-ppc-glibc.ver (__gcc_qunord): Likewise.
        * config/rs6000/rs6000.c (rs6000_init_libfuncs): Use __gcc_qunord
        also for E500 double.
        * config/rs6000/rs6000.md (buneq, bunge, bungt, bunle, bunlt,
        suneq, sunge, sungt, sunle, sunlt): Disable for (TARGET_HARD_FLOAT
        && !TARGET_FPRS).

2007-05-01  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-loop-manip.c (ip_normal_pos): Check if last stmt
        is NULL.

2007-05-01  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/libgcc-ppc-glibc.ver (__gcc_qgt): Fix typo.

2007-05-01  Jan Hubicka  <jh@suse.cz>

        * tree-vectorize.c (vect_is_simple_use): gimple_min_invariant is
        invariant.

2007-05-01  Jan Hubicka  <jh@suse.cz>

        * tree.h (maybe_fold_offset_to_component_ref): Remove.
        (maybe_fold_offset_to_reference): Declare.
        * fold-const.c (fold_unary): Do not fold
        (type *)&A into &A->field_of_type_and_offset_0
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): When base type
        size is unknown, give up.
        (maybe_fold_offset_to_component_ref): Ignore firelds with unknown
        offsets.
        (maybe_fold_offset_to_reference): New.
        (maybe_fold_stmt_indirect): Use it.
        (fold_stmt_r): Fold (type *)&A+offset into A->field_if_type_and_offset.
        * gimplify.c (gimplify_conversion): Canonicalize conversions to
        field references.
        (gimplify_expr): Likewise for plus_expr.

2007-05-01  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Use
        bsi_after_labels.  Always insert statements before bsi.
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Ditto.
        * predict.c (apply_return_prediction): Check for empty blocks.
        * cfgexpand.c (lab_rtx_for_bb): New variable.
        (label_rtx_for_bb): Do not create new tree labels.
        (expand_gimple_basic_block): Add labels recorded in lab_rtx_for_bb.
        (tree_expand_cfg): Initialize lab_rtx_for_bb.
        * tree-cfg.c (build_tree_cfg): Call cleanup_dead_labels after
        creating edges.
        (label_for_bb): Add field used.
        (update_eh_label, main_block_label): Mark the label used.
        (cleanup_dead_labels): Remove unused labels.

2007-05-01  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (set_value_range): Do not allocate equiv bitmap
        if it is not about to be set.
        (get_value_range): Do not pre-allocate equiv bitmap.
        (update_value_range): No need to clear equiv field.
        (add_equivalence): Change prototype to get bitmap pointer.
        Allocate bitmap here if it is not already.
        (extract_range_from_assert): Do not allocate bitmap here.
        Update callers to add_equivalence.
        (extract_range_from_ssa_name): Likewise.
        (get_vr_for_comparison): New static helper.
        (compare_name_with_value): Handle NULL equiv bitmap by
        peeling the first iteration of the comparison loop.
        Use get_vr_for_comparison.
        (compare_names): Handle NULL equiv bitmaps by using fake
        ones.  Use get_vr_for_comparison.

2007-04-30  Brooks Moses  <brooks.moses@codesourcery.com>

        * double-int.c (mpz_set_double_int): Moved from
        tree-ssa-loop-niter.c.
        (mpz_get_double_int): Likewise; also, add option to wrap
        out-of-range integers.
        * double-int.h: New prototypes for above.
        * tree.c (get_static_type_bounds): Moved from
        tree-ssa-loop-niter.c; now returns TYPE_MIN_VALUE and
        TYPE_MAX_VALUE if they exist..
        * tree.h: New prototype for above.
        * tree-ssa-loop-niter.c: Adjust mpz_to_double_int and
        get_type_bounds calls.
        (mpz_set_double_int): Move to double-int.c.
        (get_type_bounds): Move to tree.c, rename to
        get_static_type_bounds.
        (mpz_to_double_int): Move to double-int.c, rename to
        mpz_get_double_int.

2007-04-30  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm (__umodsi3, __modsi3): Rearrange so that
        DIV0 exception can fall through to a normal return.

2007-04-30  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/22156
        Temporarily revert:
        2007-04-06  Andreas Tobler  <a.tobler@schweiz.org>
        * tree-sra.c (sra_build_elt_assignment): Initialize min/maxshift.
        2007-04-05  Alexandre Oliva  <aoliva@redhat.com>
        * tree-sra.c (try_instantiate_multiple_fields): Needlessly
        initialize align to silence bogus warning.
        2007-04-05  Alexandre Oliva  <aoliva@redhat.com>
        * tree-sra.c (struct sra_elt): Add in_bitfld_block.  Remove
        all_no_warning.
        (struct sra_walk_fns): Remove use_all parameter from use.
        (sra_hash_tree): Handle BIT_FIELD_REFs.
        (sra_elt_hash): Don't hash bitfld blocks.
        (sra_elt_eq): Skip them in parent compares as well.  Handle
        BIT_FIELD_REFs.
        (sra_walk_expr): Don't maintain or pass down use_all_p.
        (scan_use): Remove use_all parameter.
        (scalarize_use): Likewise.  Re-expand assignment to
        BIT_FIELD_REF of gimple_reg.  De-scalarize before input or
        output, and re-scalarize after output.  Don't mark anything
        for no warning.
        (scalarize_ldst): Adjust.
        (scalarize_walk_gimple_modify_statement): Likewise.
        (build_element_name_1): Handle BIT_FIELD_REFs.
        (instantiate_element): Don't warn for any element whose parent
        is used as a whole.
        (instantiate_missing_elements_1): Return the sra_elt.
        (canon_type_for_field): New.
        (try_instantiate_multiple_fields): New.
        (instantiate_missing_elemnts): Use them.
        (mark_no_warning): Removed.
        (generate_one_element_ref): Handle BIT_FIELD_REFs.
        (REPLDUP, sra_build_elt_assignment): New.
        (generate_copy_inout): Use them.
        (generate_element_copy): Likewise.  Handle bitfld differences.
        (generate_element_zero): Don't recurse for blocks.  Use
        sra_build_elt_assignment.
        (generate_one_element_int): Take elt instead of var.  Use
        sra_build_elt_assignment.
        (generate_element_init_1): Adjust.
        (scalarize_use, scalarize_copy): Use REPLDUP.
        (scalarize_ldst): Move assert before dereference.
        (dump_sra_elt_name): Handle BIT_FIELD_REFs.

2007-04-30  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C++/31721
        * tree.c (reconstruct_complex_type): Reconstruct a reference
        correctly.
        Also use the same mode for the pointer as the old pointer type.

2007-04-30  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * doc/trouble.texi (Interoperation): Remove note about Ultrix
        Fortran compiler.

2007-04-29  Zdenek Dvorak  <dvorakz@suse.cz>

        PR rtl-optimization/31676
        * df-scan.c (record_nonlocal_goto_receiver_defs): New function.
        (df_refs_record): Call it.

2007-04-29  Bernd Schmidt  <bernd.schmidt@analog.com>

        * rtl.def (SS_ABS): New code.
        * config/bfin/bfin.c (print_operand): New modifier 'v'.
        (enum bfin_builtins): Add BFIN_BUILTIN_SUM_2X16, BFIN_BUILTIN_ABS_1x32,
        BFIN_BUILTIN_ROUND_1x32, BFIN_BUILTIN_MULT_1x32x32,
        BFIN_BUILTIN_MULT_1x32x32NS, BFIN_BUILTIN_SSASHIFT_1x32.
        (bfin_init_builtins): Define them.
        (bdesc_1arg, bdesc_2arg): Add some of them here, ...
        (bfin_expand_builtin): ... and handle the others here.
        * config/bfin/bfin.md (ssabssi2, ssroundsi2, ssashiftsi3,
        flag_mul_macv2hi_parts_acconly_andcc0): New patterns.
        (ss_absv2hi2): Renamed from absv2hi; use ss_abs code.
        (ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3): Shift count
        operand is only HImode.

2007-04-29  Steven Bosscher  <steven@gcc.gnu.org>

        * regclass.c (scan_one_insn): Remove splitting of
        two address insns.

2007-04-28  Sandra Loosemore  <sandra@codesourcery.com>
            Nigel Stephens  <nigel@mips.com>

        * config/mips/mips.h (SLOW_BYTE_ACCESS): Turn off for MIPS16.

2007-04-28  Jan Hubicka  <jh@suse.cz>

        * config/alpha/alpha.c (alpha_output_mi_thunk_osf): Use
        insn_locators_alloc instead of insn_locators_initialize;
        call reset_block_changes.
        * config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
        * config/sh/sh.c (sparc_output_mi_thunk): Likewise.
        * config/is64/ia64.c (ia64_output_mi_thunk): Likewise.
        * config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
        * config/score/score.c (th_output_mi_thunk): Likewise.
        * config/mips/mips.c (mips_output_mi_thunk): Likewise.
        * cfglyaout.c (set_curr_insn_source_location, set_curr_insn_block):
        tolerate uninitialized locator info.

        Re-apply:
        * function.c (init_function_start): Don't init line number info.
        (expand_function_end): Update.
        (reset_block_changes, record_block_change, finalize_block_changes,
        check_block_change, free_block_changes): Kill.
        * function.h (reset_block_changes, record_block_change,
        finalize_block_changes, check_block_change, free_block_changes): Remove
        prototypes.
        (struct function): Remove ib_boundaries_block.
        * emit-rtl.c (make_insn_raw, make_jump_insn_raw, make_call_insn_raw):
        Use curr_insn_locator to initialize locator.
        (emit_line_note): Remove.
        * cfgexpand.c (expand_gimple_cond_expr): Update.
        (construct_exit_block): Likewise.
        (tree_expand_cfg): Initialize/finalize locators.
        * expr.c (expand_expr_real): Update.
        * cfglayout.c (line_locators_locs, line_locators_lines,
        file_locators_locs, file_locators_files): Remove.
        (set_block_levels): Move to cfgexpand.c.
        (insn_locators_initialize): Remove.
        (pass_insn_locators_initialize): Remove.
        (locations_locators_locs, locations_locators_vals): New static vars.
        (curr_location, last_location, curr_block, last_block, curr_rtl_loc):
        Likewise.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        New functions.
        (locator_location): New.
        (locator_line, locator_file): Rewrite.
        * rtl.h (emit_line_note): Kill.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        Declare.
        * tree-inline.c (initialize_cfun): Do not initialize
        ib_boundaries_block.
        * passes.c (pass_insn_locators_initialize): Remove.

2007-04-28  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-cfg.c (move_block_to_fn): Release bb from dominance
        info.  Update last_basic_block correctly.

2007-04-27  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31701
        * config/sh/sh.c (output_stack_adjust): Avoid using the frame
        register itself to hold the offset constant.  Tell flow the use
        of r4 and r5 when they are used.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_into_cond): Keep track
        if we simplified anything.
        (tree_ssa_forward_propagate_single_use_vars): Defer overflow
        warnings until we did a simplification and the stmt was not
        marked as TREE_NO_WARNING.

2007-04-27  Mike Stump  <mrs@apple.com>

        * config/rs6000/darwin.h (ALWAYS_PUSH_CONSTS_USING_REGS_P): Remove.

2007-04-27  Ian Lance Taylor  <iant@google.com>

        PR middle-end/31710
        * tree.c (build_distinct_type_copy): If TYPE_MIN_VALUE or
        TYPE_MAX_VALUE exist, convert them to the new type.

2007-04-27  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-cfgcleanup.c (cleanup_tree_cfg): Verify dominance info
        if it claims to be available.
        * tree-ssa-dce.c (remove_dead_stmt): Mark cfg as altered when
        edge is redirected.
        (perform_tree_ssa_dce): Always free postdominators.

2007-04-27  Richard Henderson  <rth@redhat.com>

        * config/alpha/predicates.md (aligned_memory_operand): Mark
        as define_special_predicate.
        (unaligned_memory_operand, normal_memory_operand): Likewise.
        (reg_or_unaligned_mem_operand): Remove.
        (any_memory_operand): Match the documentation and check for
        non-renumbered pseudos during reload.
        * config/alpha/alpha.c (alpha_secondary_reload): Rename from
        alpha_secondary_reload_class, update to new interface, make static.
        Handle CQImode like HImode.  Remove FP subreg check.
        (alpha_expand_mov): Use replace_equiv_address.
        (alpha_expand_mov_nobwx): Use any_memory_operand.
        (TARGET_SECONDARY_RELOAD): New.
        * config/alpha/alpha.h (SECONDARY_INPUT_RELOAD_CLASS): Remove.
        (SECONDARY_OUTPUT_RELOAD_CLASS): Remove.
        * config/alpha/sync.md (I12MODE, I48MODE, modesuffix): Move ...
        * config/alpha/alpha.md: ... here.
        (RELOAD12, reloadmode): New.
        (movcqi): New.
        (reload_in<RELOAD12>): Macro-ize from reload_inqi, reload_inhi.
        Don't handle the aligned case here.
        (reload_out<RELOAD12>): Macro-ize from reload_outqi, reload_outhi.
        (reload_in<I12MODE>_aligned): Macro-ize from reload_inqi_help,
        reload_inhi_help.  Don't expect a scratch register.
        (reload_out<I12MODE>_aligned): Macro-ize from reload_outqi_help,
        reload_outhi_help.
        * config/alpha/alpha-protos.h (alpha_secondary_reload_class): Remove.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (get_prop_dest_stmt): Fix comment typo.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30965
        PR tree-optimization/30978
        * Makefile.in (tree-ssa-forwprop.o): Depend on $(FLAGS_H).
        * tree-ssa-forwprop.c (forward_propagate_into_cond_1): Remove.
        (find_equivalent_equality_comparison): Likewise.
        (simplify_cond): Likewise.
        (get_prop_source_stmt): New helper.
        (get_prop_dest_stmt): Likewise.
        (can_propagate_from): Likewise.
        (remove_prop_source_from_use): Likewise.
        (combine_cond_expr_cond): Likewise.
        (forward_propagate_comparison): New function.
        (forward_propagate_into_cond): Rewrite to use fold for
        tree combining.
        (tree_ssa_forward_propagate_single_use_vars): Call
        forward_propagate_comparison to propagate comparisons.

2007-04-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31715
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Make
        sure to do computation on the offset in an appropriate
        signed type.

2007-04-27  Richard Sandiford  <richard@codesourcery.com>

        * reload.h (elimination_target_reg_p): Declare.
        * reload.c (find_reloads): Don't apply the reg_rtx move
        optimization if the SET_DEST satisfies elimination_target_reg_p.
        * reload1.c (elimination_target_reg_p): New function.
        (gen_reload): In the move/add2 fallback, make sure that op0
        does not overlap the destination register.

2007-04-27  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-im.c (determine_invariantness_stmt): Attempt to
        transform only GIMPLE_MODIFY_STMTs.
        * tree-complex.c (expand_complex_operations_1): Ditto.
        (expand_complex_div_wide): Do not create gotos in COND_EXPR branches.
        * tree-ssa-loop-manip.c (build_if_stmt): Removed.
        (tree_transform_and_unroll_loop): Do not create gotos in COND_EXPR
        branches.
        * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
        tree_mod_subtract, tree_ic, tree_stringop_fixed_value): Ditto.
        * omp-low.c (expand_parallel_call, expand_omp_for_generic,
        expand_omp_for_static_chunk, expand_omp_for_static_nochunk): Ditto.
        * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes,
        slpeel_add_loop_guard): Ditto.
        * tree-mudflap.c (mf_build_check_statement_for): Ditto.
        * lambda-code.c (perfect_nestify): Ditto.
        * tree-iterator.c (tsi_split_statement_list_before): Fix splitting
        before the first statement.
        * tree-optimize.c (execute_free_datastructures): Fix comments.
        (execute_free_cfg_annotations): Do not call disband_implicit_edges.
        * tree-flow.h (disband_implicit_edges): Declaration removed.
        * tree-cfg.c (make_cond_expr_edges): Remove gotos from COND_EXPR
        branches.
        (cleanup_dead_labels, tree_redirect_edge_and_branch): Handle COND_EXPRs
        without gotos.
        (disband_implicit_edges, has_label_p): Removed.
        (tree_verify_flow_info): Verify that COND_EXPR branches are empty.
        (tree_lv_add_condition_to_bb): Do not create gotos in COND_EXPR
        branches.
        * tree.c (build3_stat): Mark COND_EXPRs used as statements as having
        side effects.
        * tree-pretty-print.c (dump_implicit_edges): Dump implicit edges
        also for COND_EXPRs.
        * cfgexpand.c (label_rtx_for_bb): New function.
        (expand_gimple_cond_expr): Do not expect gotos in COND_EXPR branches.
        Use label_rtx_for_bb to find the labels.
        (expand_gimple_basic_block): Remove RETURN_EXPR at the end of the
        last block.  Detect fallthru edges.

2007-04-26  Ian Lance Taylor  <iant@google.com>

        PR target/28675
        * reload.c (find_reloads_subreg_address): If the address was valid
        in the original mode but not in the new mode, reload the whole
        address.

2007-04-27  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-cfgcleanup.c (cfgcleanup_altered_bbs): New global variable.
        (remove_fallthru_edge): Use remove_edge_and_dominated_blocks.
        (cleanup_control_expr_graph): Do not invalidate dominance info.
        Record altered blocks.
        (cleanup_control_flow, cleanup_forwarder_blocks): Removed.
        (cleanup_control_flow_bb, split_bbs_on_noreturn_calls,
        cleanup_tree_cfg_bb): New functions.
        (remove_forwarder_block): Do not maintain the worklist of blocks.
        Record altered blocks.
        (cleanup_tree_cfg_1): Iterate over cfgcleanup_altered_bbs,
        not over whole cfg.
        (cleanup_tree_cfg): Do not iterate cleanup_tree_cfg_1.  Only call
        delete_unreachable_blocks if dominators are not available.
        * tree-inline.c (optimize_inline_calls): Free dominance information
        earlier.
        * tree-flow.h (remove_edge_and_dominated_blocks,
        cfgcleanup_altered_bbs): Altered.
        * tree-cfg.c (replace_uses_by, tree_merge_blocks): Record altered
        blocks.
        (get_all_dominated_blocks, remove_edge_and_dominated_blocks): New
        functions.
        (tree_purge_dead_eh_edges): Use remove_edge_and_dominated_blocks,
        do not invalidate dominators.

2007-04-26  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for ATmega8HVA and
        ATmega16HVA devices. Move AT90USB82 device to 'avr5' architecture.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2007-04-26  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.md (ip_value):  Fix itanium_class attribute.

2007-04-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31703
        * tree-ssa-loop-im.c (rewrite_bittest): Make sure to use
        the right type for the target of the bittest.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/vx-common.h (RETURN_IN_MEMORY): Use
        ix86_sol10_return_in_memory.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/i386.c (ix86_sol10_return_in_memory): Remove unused
        variables.

2007-04-26  Jakub Jelinek  <jakub@redhat.com>

        PR c++/31598
        * tree-inline.c (copy_body_r): Don't touch TREE_TYPE of OMP_CLAUSE.

        PR tree-optimization/30558
        * tree-eh.c (lower_eh_filter): If EH_FILTER_MUST_NOT_THROW
        clear this_state.prev_try.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>
            Mark Mitchell  <mark@codesourcery.com>

        * config/i386/i386-protos.h (ix86_sol10_return_in_memory): Declare.
        * config/i386/i386.c (ix86_sol10_return_in_memory): New function.
        * config/i386/sol2-10.h (RETURN_IN_MEMORY): Use it.

2007-04-26  Richard Sandiford  <richard@codesourcery.com>

        PR driver/31107
        * doc/invoke.texi (%:print-asm-header): Document.
        * gcc.c (asm_options): Use %:print-asm-header() for --target-help
        and -ftarget-help.
        (static_spec_functions): Add print-asm-header.
        (main): Print a banner before the --target-help linker options.
        (print_asm_header_spec_function): New function.

2007-04-25  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31403
        * config/sh/sh.md (movsi_ie): Fix length for TARGET_SH2A.
        (movsf_ie): Likewise.

2007-04-25  Paolo Carlini  <pcarlini@suse.de>

        * doc/extend.texi ([Type Traits]): Adjust per N2255.

2007-04-25  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/lib1funcs.asm (__udivsi3, __divsi3): Throw an exception
        for divide-by-zero.
        (__umodsi3, __modsi3): Likewise.

2007-04-25  Dirk Mueller  <dmueller@suse.de>

        * c-typeck.c (build_compound_expr): Annotate warning()
        call with OPT_Wunused_value.
        * tree-ssa.c (warn_uninit): Annotate warning with
        OPT_Wunintialized.
        * c-common.c (handle_sentinel_attribute): Annotate warning
        call with OPT_Wattributes.

2007-04-25  Thiemo Seufer  <ths@mips.com>

        * config/mips/mips.opt (mdmx, mmt, mno-mdmx): New options.
        (mips16): Fix typo.
        * config/mips/mips.h (ASM_SPEC): Pass -mmt/-mno-mt and -mdmx/-mno-mdmx
        on to the assembler.  Improve handling of -mno-mips16.  Add handling
        of -mno-mips3d, -mno-dsp, -mno-dspr2.
        * doc/invoke.texi (MIPS Options): Whitespace cleanup.  Fix wrong use
        of @itemx.  Document -mno-dsp, -mno-dspr2, -mno-paired-single, -mdmx,
        -mno-mdmx, -mno-mips3d, -mmt and -mno-mt.

2007-04-25  Danny Smith  <dannysmith.users.sourceforge.net>

        PR target/31680
        * config/i386/winnt.c (i386_pe_file_end): Strip only
        USER_LABEL_PREFIX when writing export name.

2007-04-25  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (sh-wrs-vxworks): Don't include dbxelf.h.  Include
        sh/elf.h, vx-common.h and vxworks.h.
        * config/sh/sh.h: Include config/vxworks-dummy.h.
        (SUBTARGET_OVERRIDE_OPTIONS): Define.
        (OVERRIDE_OPTIONS): Use it.
        * config/sh/sh.md (GOTaddr2picreg): Add suport for VxWorks RTPs.
        (vxworks_picreg): New pattern.
        * config/sh/vxworks.h (TARGET_OS_CPP_BUILTINS): Use
        VXWORKS_OS_CPP_BUILTINS.
        (LIB_SPEC, LINK_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Redefine
        to their VXWORKS_* equivalents.
        (SUBTARGET_OVERRIDE_OPTIONS, SUBTARGET_CPP_SPEC): Define.
        (SUBTARGET_LINK_EMUL_SUFFIX, FUNCTION_PROFILER): Define.
        * config/sh/lib1funcs.asm (NO_FPSCR_VALUES): Define for VxWorks PIC.
        (set_fpscr, ic_invalidate): Add VxWorks PIC sequences.
        * config/sh/t-vxworks (MULTILIB_OPTIONS): Add m4a, -mrtp and
        -mrtp/-fPIC multilibs.
        (MULTILIB_EXCEPTIONS): Generalize globs accordingly.
        (MULTILIB_MATCHES, EXTRA_MULTILIB_PARTS): Define.
        (MULTILIB_OSDIRNAMES): Delete.

2007-04-25  Anatoly Sokolov <aesok@post.ru>

        PR target/18989
        * config/avr/avr.h (ASM_OUTPUT_ALIGN): Redefine.

2007-04-24  Brooks Moses  <brooks.moses@codesourcery.com>

        * real.c (mpfr_from_real): Handle Inf and NaN, and allow the
        rounding mode to be specified by the caller.
        (real_to_mpfr) Likewise.
        * real.h: Update mpfr_from_real, mpfr_to_real prototypes to
        include new arguments.
        * builtins.c: Update mpfr_from_real, mpfr_to_real calls.

2007-04-24  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31605
        * tree-vrp.c (set_value_range): Check that min and max are not
        both overflow infinities.
        (set_value_range_to_value): New static function.
        (extract_range_from_binary_expr): Call set_value_range_to_value.
        (extract_range_from_cond_expr): Likewise.
        (extract_range_from_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.  Don't create a range
        which overflows on both sides.
        (vrp_meet): Check for a useless range.
        (vrp_visit_phi_node): If we see a constant which looks like an
        overflow infinity, turn off the TREE_OVERFLOW flag.

2007-04-24  Ian Lance Taylor  <iant@google.com>

        * flow.c (elim_reg_cond): Handle a comparison of a subreg.

2007-04-24  Simon Martin  <simartin@users.sourceforge.net>

        PR diagnostic/25923
        * tree-pass.h (TDF_DIAGNOSTIC): New dump control to specify that a
        diagnostic message is being built.
        * tree-pretty-print.c (dump_generic_node): Only write the
        formatted text into BUFFER's stream if we are not building a
        diagnostic message.
        * toplev.c (default_tree_printer): Pass TDF_DIAGNOSTIC to
        dump_generic_node.
        * Makefile.in (toplev.o): Depend on tree-pass.h.

2007-04-24  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31602
        * tree-ssa-loop-ch.c (copy_loop_headers): Set TREE_NO_WARNING for
        conditionals in the copied loop header.
        * tree-cfg.c (fold_cond_expr_cond): Don't issue undefined overflow
        warnings if TREE_NO_WARNING is set.
        * doc/invoke.texi (Warning Options): Clarify that
        -Wstrict-overflow does not warn about loops.

2007-04-24  Janis Johnson  <janis187@us.ibm.com>

        * config/rs6000/rs6000.c (function_arg_advance): For 32-bit ELF ABI,
        expand on the comment about _Decimal128 arguments and check the
        integer result of the modulus operation; for 64-bit ELF ABI, ensure
        that _Decimal128 argument uses even/odd register pair.
        (function_arg): Ditto.

2007-04-24  Hui-May Chang <hm.chang@apple.com>

        * reload1.c (merge_assigned_reloads) : Do not merge a RELOAD_OTHER
        instruction with a RELOAD_FOR_OPERAND_ADDRESS instruction.

2007-04-24  Richard Guenther  <rguenther@suse.de>
            Olga Golovanevsky  <olga@il.ibm.com>

        * fold-const.c (multiple_of_p): Check for bottom
        to be zero.

2007-04-24  Richard Henderson  <rth@redhat.com>

        * libgcc2.h (AVOID_FP_TYPE_CONVERSION): Rename from
        IS_IBM_EXTENDED.  Also define in terms of WIDEST_HARDWARE_FP_SIZE.
        * libgcc2.c (__floatdisf): Avoid double-word arithmetic when
        looking for non-zero bits shifted out.  Avoid a recursive call
        when constructing the scalar.
        (__floatundisf): Likewise.

2007-04-24  Nathan Froyd  <froydnj@codesourcery.com>

        * dwarf2out.c (field_byte_offset): Move the existing logic
        under the control of PCC_BITFIELD_TYPE_MATTERS and just use
        the bit offset of the field if !PCC_BITFIELD_TYPE_MATTERS.

2007-04-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        PR target/31641
        * config/s390/s390.c (s390_expand_setmem): Don't ICE for constant length
        argument of 0 for memset.
        (s390_expand_movmem, s390_expand_setmem, s390_expand_cmpmem): Use
        unsigned shift instead of the signed variant.

2007-04-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs_ibm",
        "fix_trunc<BFP:mode><GPR:mode>2_ieee", "fix_truncdfsi2_ibm",
        "floatsidf2_ibm", "floatsisf2", "truncdfsf2_ieee", "truncdfsf2_ibm",
        "*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
        "*trunctfsf2_ibm", "extendsfdf2_ieee", "extendsfdf2_ibm",
        "*extenddftf2_ieee", "*extenddftf2_ibm", "*extendsftf2_ieee",
        "*extendsftf2_ibm", "*add<mode>3", "*add<mode>3_ibm", "*sub<mode>3_ibm",
        "*mul<mode>3", "*mul<mode>3_ibm", "*div<mode>3", "*div<mode>3_ibm",
        "*neg<mode>2_ibm", "*abs<mode>2_ibm"): Insn definitions removed.
        ("fix_trunc<BFP:mode><GPR:mode>2_bfp", "floatsi<mode>2",
        "truncdfsf2", "trunctf<mode>2", "add<mode>3", "sub<mode>3",
        "mul<mode>3", "div<mode>3"): Insn definitions added.
        ("fixuns_trunc<BFP:mode><GPR:mode>2", "fix_trunc<mode>di2",
        "fix_trunc<mode>si2"): gen_fix_trunc<BFP:mode><GPR:mode>2_ieee renamed
        to gen_fix_trunc<BFP:mode><GPR:mode>2_bfp.
        ("fix_truncdfsi2", "floatsitf2", "truncdfsf2", "trunctfdf2",
        "trunctfsf2", "extendsfdf2", "extenddftf2", "extendsftf2", "add<mode>3",
        "sub<mode>3", "mul<mode>3", "div<mode>3"): Expander removed.
        ("fix_trunc<mode>si2", "extend<DSF:mode><BFP:mode>2"): Expander added.
        * config/s390/s390.h (TARGET_IBM_FLOAT, TARGET_IEEE_FLOAT,
        TARGET_FLOAT_FORMAT): Macro definitions removed.
        (FP_REGNO_P): No special case for !TARGET_IEEE_FLOAT anymore.
        * config/s390/s390.c (struct processor_costs, z900_cost, z990_cost,
        z9_109_cost): Remove fields for hexfloat instructions: dxr, ddr and der.
        (s390_rtx_costs): Remove !TARGET_IEEE_FLOAT special branches.
        (s390_gen_rtx_const_DI): Function removed.
        * config/s390/s390-protos.h (s390_gen_rtx_const_DI): Prototype removed.

2007-04-24  Richard Sandiford  <richard@codesourcery.com>

        * optabs.c (set_conv_libfunc): Prefer libgcc2's __ffsMM2 functions
        over an external ffs function.

2007-04-24  Chao-ying Fu  <fu@mips.com>
            Richard Sandiford  <richard@nildram.co.uk>

        * doc/md.texi (madd@var{m}@var{n}4, umadd@var{m}@var{n}4): Document.
        * optabs.h (OTI_smadd_widen, OTI_umadd_widen): New optab_indexes.
        (smadd_widen_optab, umadd_widen_optab): Define.
        * optabs.c (init_optabs): Initialize smadd_widen_optab and
        umadd_widen_optab.
        * genopinit.c (optabs): Fill in smadd_widen_optab and
        umadd_widen_optab.
        * expr.c (expand_expr_real_1): Try to use smadd_widen_optab
        and umadd_widen_optab to implement multiply-add sequences.
        * config/mips/mips.md (*<su>mul_acc_di): Rename to...
        (<u>maddsidi4): ...this.  Extend condition to include
        GENERATE_MADD_MSUB and TARGET_DSPR2.  Change the constraint
        of operand 0 to "ka" and use the three-operand form of madd<u>
        for TARGET_DSPR2.
        * config/mips/mips-dspr2.md (mips_madd, mips_maddu): Convert
        to define_expands.
        * config/mips/constraints.md (ka): New register constraint.

2007-04-24  Jan Hubicka  <j@suse.cz>

        Revert:

        2007-04-23  Jan Hubicka  <jh@suse.cz>
        * function.c (init_function_start): Don't init line number info.
        (expand_function_end): Update.
        (reset_block_changes, record_block_change, finalize_block_changes,
        check_block_change, free_block_changes): Kill.
        * function.h (reset_block_changes, record_block_change,
        finalize_block_changes, check_block_change, free_block_changes): Remove
        prototypes.
        (struct function): Remove ib_boundaries_block.
        * emit-rtl.c (make_insn_raw, make_jump_insn_raw, make_call_insn_raw):
        Use curr_insn_locator to initialize locator.
        (emit_line_note): Remove.
        * cfgexpand.c (expand_gimple_cond_expr): Update.
        (construct_exit_block): Likewise.
        (tree_expand_cfg): Initialize/finalize locators.
        * expr.c (expand_expr_real): Update.
        * cfglayout.c (line_locators_locs, line_locators_lines,
        file_locators_locs, file_locators_files): Remove.
        (set_block_levels): Move to cfgexpand.c.
        (insn_locators_initialize): Remove.
        (pass_insn_locators_initialize): Remove.
        (locations_locators_locs, locations_locators_vals): New static vars.
        (curr_location, last_location, curr_block, last_block, curr_rtl_loc):
        Likewise.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        New functions.
        (locator_location): New.
        (locator_line, locator_file): Rewrite.
        * rtl.h (emit_line_note): Kill.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        Declare.
        * tree-inline.c (initialize_cfun): Do not initialize
        ib_boundaries_block.
        * passes.c (pass_insn_locators_initialize): Remove.

2007-04-24  Daniel Franke  <franke.daniel@gmail.com>

        * doc/invoke.texi: Removed leading '-' from option index entries.

2007-04-23  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-phinodes.c (reserve_phi_args_for_new_edge, remove_phi_node):
        Use phi_nodes_ptr.
        (create_phi_node): Use set_phi_nodes.
        * omp-low.c (expand_omp_parallel): Use bb_stmt_list.
        * tree-if-conv.c (process_phi_nodes): Use set_phi_nodes.
        (combine_blocks):  Use bb_stmt_list and set_bb_stmt_list.
        * tree-flow-inline.h (phi_nodes, set_phi_nodes,
        (bsi_start, bsi_last): Use bb_stmt_list.
        (phi_nodes_ptr, bb_stmt_list, set_bb_stmt_list): New functions.
        * cfgexpand.c (expand_gimple_basic_block): Use bb_stmt_list.
        Traverse the statements using tsi iterator.
        * basic-block.h (struct basic_block_def): Fields stmt_list
        and phi_nodes moved to ...
        (struct tree_bb_info): ... new structure.
        * tree-cfg.c (create_bb): Allocate il.tree.  Use set_bb_stmt_list.
        (tree_merge_blocks): Use bb_stmt_list and set_bb_stmt_list.
        (remove_bb): Handle blocks with NULL stmt list.  Clear il.tree field.
        (tree_verify_flow_info): Verify that il.tree is not set for
        entry and exit block.
        (tree_split_block): Use set_bb_stmt_list.

2007-04-23  Mike Stump  <mrs@apple.com>

        * config/i386/i386.c (ix86_tune_features
        [X86_TUNE_DEEP_BRANCH_PREDICTION]: Prefer call over thunks on
        nocona and core2.

2007-04-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.md (prefix_extra): New attribute.
        (length): Add prefix_extra.

        * onfig/i386/sse.md (sse2_movdqu): Set prefix_data16.
        (sse2_movntv2di): Likewise.
        (sse2_cvtps2dq): Likewise.
        (sse2_cvtpd2pi): Likewise.
        (sse2_cvttpd2pi): Likewise.
        (*sse2_cvtpd2ps): Likewise.
        (*add<mode>3): Likewise.
        (sse2_ssadd<mode>3): Likewise.
        (sse2_usadd<mode>3): Likewise.
        (*sub<mode>3): Likewise.
        (sse2_sssub<mode>3): Likewise.
        (sse2_ussub<mode>3): Likewise.
        (*mulv8hi3): Likewise.
        (*smulv8hi3_highpart): Likewise.
        (*umulv8hi3_highpart): Likewise.
        (sse2_umulv2siv2di3): Likewise.
        (sse2_pmaddwd): Likewise.
        (ashr<mode>3): Likewise.
        (lshr<mode>3): Likewise.
        (ashl<mode>3): Likewise.
        (sse2_ashlti3): Likewise.
        (sse2_lshrti3): Likewise.
        (*umaxv16qi3): Likewise.
        (*smaxv8hi3): Likewise.
        (*uminv16qi3): Likewise.
        (*sminv8hi3): Likewise.
        (sse2_eq<mode>3): Likewise.
        (sse2_gt<mode>3): Likewise.
        (*and<mode>3): Likewise.
        (sse2_nand<mode>3): Likewise.
        (*ior<mode>3): Likewise.
        (*xor<mode>3): Likewise.
        (sse2_packsswb): Likewise.
        (sse2_packssdw): Likewise.
        (sse2_packuswb): Likewise.
        (sse2_punpckhbw): Likewise.
        (sse2_punpcklbw): Likewise.
        (sse2_punpckhwd): Likewise.
        (sse2_punpcklwd): Likewise.
        (sse2_punpckhdq): Likewise.
        (sse2_punpckldq): Likewise.
        (sse2_punpckhqdq): Likewise.
        (sse2_punpcklqdq): Likewise.
        (*sse2_pinsrw): Likewise.
        (*sse2_pextrw): Likewise.
        (sse2_pshufd_1): Likewise.
        (sse2_uavgv16qi3): Likewise.
        (sse2_uavgv8hi3): Likewise.
        (sse2_psadbw): Likewise.
        (sse2_pmovmskb): Likewise.
        (*sse2_maskmovdqu): Likewise.
        (*sse2_maskmovdqu_rex64): Likewise.
        (sse4a_extrqi): Likewise.
        (sse4a_extrq): Likewise.
        (sse3_lddqu): Set prefix_rep.
        (sse3_addsubv4sf3): Likewise.
        (sse3_haddv4sf3): Likewise.
        (sse3_hsubv4sf3): Likewise.
        (sse_cvtss2si): Likewise.
        (sse_cvtss2si_2): Likewise.
        (sse_cvtss2siq): Likewise.
        (sse_cvtss2siq_2): Likewise.
        (sse_cvttss2si): Likewise.
        (sse_cvttss2siq): Likewise.
        (sse2_cvttps2dq): Likewise.
        (sse3_movshdup): Likewise.
        (sse3_movsldup): Likewise.
        (sse2_cvtsd2si): Likewise.
        (sse2_cvtsd2si_2): Likewise.
        (sse2_cvtsd2siq): Likewise.
        (sse2_cvtsd2siq_2): Likewise.
        (sse2_cvttsd2si): Likewise.
        (sse2_cvttsd2siq): Likewise.
        (*sse2_cvtpd2dq): Likewise.
        (*sse2_cvttpd2dq): Likewise.
        (sse2_pshuflw_1): Likewise.
        (sse2_pshufhw_1): Likewise.
        (sse4a_insertqi): Likewise.
        (sse4a_insertq): Likewise.
        (ssse3_phaddwv8hi3): Set prefix_data16 and prefix_extra.
        (ssse3_phadddv4si3): Likewise.
        (ssse3_phaddswv8hi3): Likewise.
        (ssse3_phsubwv8hi3): Likewise.
        (ssse3_phsubdv4si3): Likewise.
        (ssse3_phsubswv8hi3): Likewise.
        (ssse3_pmaddubswv8hi3): Likewise.
        (ssse3_pmulhrswv8hi3): Likewise.
        (ssse3_pshufbv16qi3): Likewise.
        (ssse3_psign<mode>3): Likewise.
        (ssse3_palignrti): Likewise.
        (abs<mode>2): Likewise.
        (ssse3_phaddwv4hi3): Set prefix_extra.
        (ssse3_phadddv2si3): Likewise.
        (ssse3_phaddswv4hi3): Likewise.
        (ssse3_phsubwv4hi3): Likewise.
        (ssse3_phsubdv2si3): Likewise.
        (ssse3_phsubswv4hi3): Likewise.
        (ssse3_pmaddubswv4hi3): Likewise.
        (ssse3_pmulhrswv4hi3): Likewise.
        (ssse3_pshufbv8qi3): Likewise.
        (ssse3_psign<mode>3): Likewise.
        (ssse3_palignrdi): Likewise.
        (abs<mode>2): Likewise.
        (sse2_cvtdq2ps): Set mode to V4SF instead of V2DF.
        (*vec_dupv2df): Set mode to V2DF instead of V4SF.
        (sse2_pmovmskb): Set mode to SI instead of V2DF.

2007-04-23  Nick Clifton  <nickc@redhat.com>

        * params.def: Fix formatting of emacs local variables.

2007-04-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (sse2_stored): Don't split to inter-unit
        move if inter-unit move isn't allowed.
        Don't split moving the first element of V2DI to DI to inter-unit
        move if inter-unit move isn't allowed.

2007-04-23  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sink.c (execute_sink_code): Calculate CDI_DOMINATORS
        and CDI_POST_DOMINATORS separately.

2007-04-23  Nick Clifton  <nickc@redhat.com>

        * c.opt (Wformat-contains-nul): Add warning attribute.

2007-04-23  Jan Hubicka  <jh@suse.cz>

        * function.c (init_function_start): Don't init line number info.
        (expand_function_end): Update.
        (reset_block_changes, record_block_change, finalize_block_changes,
        check_block_change, free_block_changes): Kill.
        * function.h (reset_block_changes, record_block_change,
        finalize_block_changes, check_block_change, free_block_changes): Remove
        prototypes.
        (struct function): Remove ib_boundaries_block.
        * emit-rtl.c (make_insn_raw, make_jump_insn_raw, make_call_insn_raw):
        Use curr_insn_locator to initialize locator.
        (emit_line_note): Remove.
        * cfgexpand.c (expand_gimple_cond_expr): Update.
        (construct_exit_block): Likewise.
        (tree_expand_cfg): Initialize/finalize locators.
        * expr.c (expand_expr_real): Update.
        * cfglayout.c (line_locators_locs, line_locators_lines,
        file_locators_locs, file_locators_files): Remove.
        (set_block_levels): Move to cfgexpand.c.
        (insn_locators_initialize): Remove.
        (pass_insn_locators_initialize): Remove.
        (locations_locators_locs, locations_locators_vals): New static vars.
        (curr_location, last_location, curr_block, last_block, curr_rtl_loc):
        Likewise.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        New functions.
        (locator_location): New.
        (locator_line, locator_file): Rewrite.
        * rtl.h (emit_line_note): Kill.
        (insn_locators_alloc, insn_locators_finalize,
        set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
        Declare.
        * tree-inline.c (initialize_cfun): Do not initialize
        ib_boundaries_block.
        * passes.c (pass_insn_locators_initialize): Remove.

2007-04-22  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31448
        * expr.c (reduce_to_bit_field_precision): Handle
        CONST_INT rtx's.

2007-04-22  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/24659
        * optabs.h (enum optab_index) [OTI_vec_unpacks_hi,
        OTI_vec_unpacks_lo]: Update comment to mention floating point operands.
        (vec_pack_trunc_optab): Rename from vec_pack_mod_optab.
        * genopinit.c (optabs): Rename vec_pack_mod_optab
        to vec_pack_trunc_optab.
        * tree-vect-transform.c (vectorizable_type_demotion): Do not fail
        early for scalar floating point operands for NOP_EXPR.
        (vectorizable_type_promotion): Ditto.
        * optabs.c (optab_for_tree_code) [VEC_PACK_TRUNC_EXPR]: Return
        vec_pack_trunc_optab.
        (expand_binop): Rename vec_float_trunc_optab to vec_pack_mod_optab.

        * tree.def (VEC_PACK_TRUNC_EXPR): Rename from VEC_PACK_MOD_EXPR.
        * tree-pretty-print.c (dump_generic_node) [VEC_PACK_TRUNC_EXPR]:
        Rename from VEC_PACK_MOD_EXPR.
        (op_prio) [VEC_PACK_TRUNC_EXPR]: Ditto.
        * expr.c (expand_expr_real_1): Ditto.
        * tree-inline.c (estimate_num_insns_1): Ditto.
        * tree-vect-generic.c (expand_vector_operations_1): Ditto.

        * config/i386/sse.md (vec_unpacks_hi_v4sf): New expander.
        (vec_unpacks_lo_v4sf): Ditto.
        (vec_pack_trunc_v2df): Ditto.
        (vec_pack_trunc_v8hi): Rename from vec_pack_mod_v8hi.
        (vec_pack_trunc_v4si): Rename from vec_pack_mod_v4si.
        (vec_pack_trunc_v2di): Rename from vec_pack_mod_v2di.

        * config/rs6000/altivec.md (vec_pack_trunc_v8hi): Rename from
        vec_pack_mod_v8hi.
        (vec_pack_trunc_v4si): Rename from vec_pack_mod_v4si.

        * doc/c-tree.texi (Expression trees) [VEC_PACK_TRUNC_EXPR]:
        Rename from VEC_PACK_MOD_EXPR.  This expression also represent
        packing of floating point operands.
        [VEC_UNPACK_HI_EXPR, VEC_UNPACK_LO_EXPR]: These expression also
        represent unpacking of floating point operands.
        * doc/md.texi (Standard Names) [vec_pack_trunc]: Update documentation.
        [vec_unpacks_hi]: Ditto.
        [vec_unpacks_lo]: Ditto.

2007-04-22  Jan Hubicka  <jh@suse.cz>

        * final.c (rest_of_handle_final): Call
        targetm.asm_out.constructor/targetm.asm_out.destructor
        * cgraphunit.c (cgraph_build_static_cdtor): Don't do it here; set
        proper priority via decl_*_priority_insert.
        * c-common.c (c_expand_body): Likewise.

2007-04-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/29789
        * tree-ssa-loop-im.c (stmt_cost): Adjust cost of shifts.
        (rewrite_reciprocal): New helper split out from
        determine_invariantness_stmt.
        (rewrite_bittest): Likewise.
        (determine_invariantness_stmt): Rewrite (A >> B) & 1 to
        A & (1 << B) if (1 << B) is loop invariant but (A >> B)
        is not.

2007-04-22  Revital Eres  <eres@il.ibm.com>

        * loop-unroll.c (var_to_expand): New field to support also
        insns of the form x = something + x.
        (analyze_insn_to_expand_var): Use it.
        (expand_var_during_unrolling): Likewise.

2007-04-21  Zdenek Dvorak  <dvorakz@suse.cz>

        * predict.c: Include pointer-set.h.
        (bb_predictions): New variable.
        (tree_predicted_by_p, tree_predict_edge,
        remove_predictions_associated_with_edge): Use bb_predictions map
        instead of bb->predictions.
        (clear_bb_predictions, assert_is_empty): New functions.
        (combine_predictions_for_bb): Use bb_predictions map.  Call
        clear_bb_predictions.
        (tree_estimate_probability): Create and free bb_predictions map.
        * Makefile.in (predict.o): Add pointer-set.h dependency.
        * basic-block.h (struct basic_block_def): Remove predictions
        field.
        * cfgrtl.c (rtl_verify_flow_info_1): Do not check bb->predictions.

2007-04-21  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31480
        * config/sh/sh.md (length): Check if prev_nonnote_insn (insn)
        is null.

2007-04-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * timevar.c (timevar_print): Change reference of --disable-checking to
        --enable-checking=release.  Also warn if assert checking is disabled.

2007-04-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C/30265
        * c-gimplifier.c (gimplify_compound_literal_expr): Mark the
        decl as addressable if the compound literal was marked as
        addressable.
        Mark the decl as a gimple register if it is a complex or
        vector decl and does not live in memory.

2007-04-21  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * tree.h (GIMPLE_TUPLE_P): Also true for PHI_NODEs.
        (GENERIC_NEXT): New function macro.
        (PHI_CHAIN): Use phi_node's new chain variable.
        (tree_phi_node): Change tree_common to tree_base
        and add the chain field.
        * tree-phinodes.c (make_phi_node): Don't set
        TREE_TYPE on the new node.
        * c-decl.c (lang_tree_node): Use GENERIC_NEXT
        instead of checking GIMPLE_TUPLE_P in chain_next.
        * tree-vect-transform.c
        (get_initial_def_for_induction): Look at
        PHI_RESULT_TREE for the type of the phi node.
        (update_vuses_to_preheader): Use PHI_CHAIN
        instead of TREE_CHAIN on the phi node.
        * tree-ssa-structalias.c (compute_points_to_sets):
        Likewise.
        (ipa_pta_execute): Likewise.

2007-04-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/31136
        * fold-const.c (fold_unary): Call fold_convert_const on the
        original tree.

2007-04-21  Alexandre Oliva  <aoliva@redhat.com>

        * gcse.c (store_killed_in_insn): Handle PARALLELs.
        (store_killed_in_pat): New.

2007-04-20  Richard Henderson  <rth@redhat.com>

        PR target/31628
        * config/i386/i386.c (type_has_variadic_args_p): Look for any
        TREE_LIST with a void_type_node value, not void_list_node exactly.

2007-04-21  Douglas Gregor  <doug.gregor@gmail.com>

        * doc/standards.texi: Re-arrange into language-specific
        subsections. Add a C++ section, documenting which standards we
        support.

2007-04-21  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-structalias.c (delete_points_to_sets): Free graph->complex.
        * tree-ssa-operands.c (finalize_ssa_vuse_ops): Free new_ops.

2007-04-20  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/rs6000/sysv4.h (STARTFILE_DEFAULT_SPEC): Include
        ecrti.o and crtbegin.o.
        (LIB_DEFAULT_SPEC): Include -lc.
        (ENDFILE_DEFAULT_SPEC): Include crtend.o and ecrtn.o.

2007-04-20  Richard Henderson  <rth@redhat.com>

        PR target/28623
        * config/alpha/alpha.c (get_unaligned_address): Remove extra_offset
        argument; update all callers.
        (get_unaligned_offset): New.
        * config/alpha/alpha.md (extendqidi2, extendhidi2): Don't use
        get_unaligned_address, just pass on the address directly.
        (unaligned_extendqidi): Use gen_lowpart instead of open-coding
        the subreg in the helper patterns.
        (unaligned_extendqidi_le): Use get_unaligned_offset.
        (unaligned_extendqidi_be, unaligned_extendhidi_le): Likewise.
        (unaligned_extendhidi_be): Likewise.
        (unaligned_extendhidi): Tidy.
        * config/alpha/alpha-protos.h: Update.

2007-04-20  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.h (CPP_SPEC, CPP_SUBTARGET_SPEC): Remove.
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS): Remove.
        * config/alpha/linux.h (CPP_SPEC): Undef before redefine.
        * config/alpha/linux-elf.h (EXTRA_SPECS): Rename SUBTARGET_EXTRA_SPECS.
        * config/alpha/freebsd.h (EXTRA_SPECS): Rename SUBTARGET_EXTRA_SPECS.
        (CPP_SPEC): Don't include %(cpp_subtarget).
        * config/alpha/netbsd.h (CPP_SPEC): Rename CPP_SUBTARGET_SPEC.
        (EXTRA_SPECS): Rename SUBTARGET_EXTRA_SPECS.
        * config/alpha/osf.h (CPP_SPEC, EXTRA_SPECS): Similarly.

2007-04-20  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (bdesc_2arg): Use ORDERED rather than UNORDERED
        for __builtin_ia32_cmpordss.

        PR tree-optimization/31632
        * fold-const.c (fold_binary): Use op0 and op1 instead of arg0
        and arg1 for optimizations of comparison against min/max values.
        Fold arg0 to arg1's type for optimizations of comparison against
        min+1 and max-1 values.

2007-04-19  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload.c (combine_reloads): When trying to use a dying register,
        check whether it's uninitialized and don't use if so.

2007-04-19  Brooks Moses  <brooks.moses@codesourcery.com>

        * fold-const.c: Remove prototypes for native_encode_expr and
        native_interpret_expr.
        (native_encode_expr): Make non-static.
        (native_interpret_expr): Likewise.
        * tree.h: Add prototypes for the above.

2007-04-19  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/spe.md (*frob_tf_ti, *frob_ti_tf, *frob_ti_tf_2,
        *mov_si<mode>_e500_subreg0, *mov_si<mode>_e500_subreg0_2,
        *mov_sitf_e500_subreg8, *mov_sitf_e500_subreg8_2, spe_extenddftf2,
        spe_fix_trunctfsi2_internal, spe_negtf2_internal, cmptfeq_gpr,
        tsttfeq_gpr, cmptfgt_gpr, tsttfgt_gpr, cmptflt_gpr, tsttflt_gpr):
        Add length attributes.

2007-04-19  Janis Johnson  <janis187@us.ibm.com>

        * ginclude/float.h: Check that __STDC_WANT_DEC_FP__ is defined,
        not that it is 1.

        * c-cppbuiltin.c (c_cpp_builtins): Remove definition of
        __STDC_WANT_DEC_FP__.

2007-04-19  Joseph Myers  <joseph@codesourcery.com>

        * configure.ac: Allow both powerpc*-*-linux* and powerpc*-*-gnu*
        for long double compatibility.
        * configure: Regenerate.

2007-04-19  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/29841
        * cfgbuild.c (control_flow_insn_p): Return TRUE for unconditional
        trap instructions.
        * sched-deps.c (sched_analyze_insn): Prevent all non-jump instructions
        that may cause control flow transfer from being moved.

2007-04-18  Jan Hubicka  <jh@suse.cz>

        * fold-const.c (div_if_zero_remainder): Do signed divide for pointer
        types.

2007-04-18  Eric Christopher  <echristo@apple.com>

        * config/rs6000/darwin.md (load_macho_picbase): Use link register
        only. Update operands.
        * config/rs6000/rs6000.c (rs6000_emit_prologue): Update caller.
        * config/rs6000/rs6000.md (builtin_setjmp_receiver): Ditto. Move from
        link register to pic register.

2007-04-18  Dirk Mueller  <dmueller@suse.de>

        PR diagnostic/31227
        * tree-vrp.c (search_for_addr_array): New.
        (check_array_bounds): Suppress warning about
        address taken of array refs if its not de-referenced.

2007-04-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vectorizer.c (destroy_loop_vec_info): Set loop->aux to NULL.
        * tree-vect-analyze.c (vect_analyze_loop_form): Set loop->aux.

        * tree-vectorizer.h (NITERS_KNOWN_P): New.
        * tree-vect-analyze.c (vect_analyze_loop_form): Call NITERS_KNOWN_P
        instead of LOOP_VINFO_INT_NITERS to avoid having to geneate loop_info.

        * tree-vect-analyze.c (vect_determine_vectorization_factor): Add
        dump print.
        (vect_analyze_operations): Fix indenetation.  Fix a comment.  Fix a
        print message.
        (vect_analyze_scalar_cycles): Fix indentation.
        (vect_enhance_data_refs_alignment): Fix check in case of peeling.
        (vect_mark_relevant): Include phis in relevance analysis.

        * tree-vect-transform.c (vect_transform_loop): Add an assert.

2007-04-18  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (ptrreg_to_str): Replace error() with
        output_operand_lossage().

2007-04-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-transform.c (get_initial_def_for_reduction): Clean away
        the unused code for reduction without adjust-in-epilog to simplify the
        function.

2007-04-18  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.h (S390_TDC_POSITIVE_ZERO): New constant.
        (S390_TDC_NEGATIVE_ZERO): New constant.
        (S390_TDC_POSITIVE_NORMALIZED_NUMBER): New constant.
        (S390_TDC_NEGATIVE_NORMALIZED_NUMBER): New constant.
        (S390_TDC_POSITIVE_DENORMALIZED_NUMBER): New constant.
        (S390_TDC_NEGATIVE_DENORMALIZED_NUMBER): New constant.
        (S390_TDC_POSITIVE_INFINITY): New constant.
        (S390_TDC_NEGATIVE_INFINITY): New constant.
        (S390_TDC_POSITIVE_QUIET_NAN): New constant.
        (S390_TDC_NEGATIVE_QUIET_NAN): New constant.
        (S390_TDC_POSITIVE_SIGNALING_NAN): New constant.
        (S390_TDC_NEGATIVE_SIGNALING_NAN): New constant.
        (S390_TDC_INFINITY): New constant.
        * config/s390/s390.c (s390_canonicalize_comparison): Renamed
        UNSPEC_CMPINT to UNSPEC_CCU_TO_INT, added a UNSPEC_CCU_TO_INT-like
        optimization for UNSPEC_CCZ_TO_INT.
        * config/s390/s390.md ("*TDC_insn_<mode>"): New insn.
        ("*ccz_to_int"): New insn.
        ("isinf<mode>2"): New insn.
        (UNSPEC_CMPINT): Renamed to UNSPEC_CCU_TO_INT.
        (UNSPEC_CCU_TO_INT): New constant, replaces UNSPEC_CMPINT.
        (UNSPEC_CCZ_TO_INT): New constant.

2007-04-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/19431
        PR tree-optimization/21463
        * tree-pass.h (pass_phiprop): Declare.
        * passes.c (init_optimization_passes): New phiprop pass.
        * tree-ssa-forwprop.c (struct phiprop_d): New structure.
        (phivn_valid_p): New helper function.
        (phiprop_insert_phi): Likewise.
        (propagate_with_phi): Likewise.
        (tree_ssa_phiprop): New propagator propagating loads
        through phi nodes if profitable.

2007-04-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-analyze.c (process_use): New function.
        (vect_mark_stmts_to_be_vectorized): Factor out code to process_use.
        Check phis in all bbs.
        * tree-vectorizer.c (vect_is_simple_use): Remove a no longer relavant
        assert.

2007-04-18  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload1.c (eliminte_regs_in_insn): Use REG_EQUIV notes the same way
        we use REG_EQUAL.

2007-04-17  Anatoly Sokolov <aesok@post.ru>

        PR target/30483
        * config/avr/avr.c (ptrreg_to_str): Replace gcc_unreachable() with
        error().

2007-04-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (sse_vmaddv4sf3): Use register_operand
        on "0".
        (sse_vmmulv4sf3): Likewise.
        (sse2_vmaddv2df3): Likewise.
        (sse2_vmmulv2df3): Likewise.

2007-04-17  Zdenek Dvorak  <dvorakz@suse.cz>

        PR rtl-optimization/31360
        * cfgloopanal.c (target_small_cost, target_pres_cost): Removed.
        (target_reg_cost): New.
        (init_set_costs): Initialize target_reg_cost.  Add comments
        regarding the rationale of the costs.
        (global_cost_for_size): Renamed to...
        (estimate_reg_pressure_cost): ... and simplify.  Decrease importance
        of register pressure.
        * tree-ssa-loop-ivopts.c (ivopts_global_cost_for_size): Use
        estimate_reg_pressure_cost.  Add number of ivs.
        (determine_set_costs): Dump target_reg_cost.
        * loop-invariant.c (gain_for_invariant):  Use
        estimate_reg_pressure_cost.  Removed n_inv_uses argument.
        (best_gain_for_invariant, find_invariants_to_move): Remove
        n_inv_uses.
        * cfgloop.h (target_small_cost, target_pres_cost): Removed.
        (target_reg_cost): Declare.
        (global_cost_for_size): Declaration removed.
        (estimate_reg_pressure_cost): Declare.

2007-04-17  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Force TDmode
        regnos into even/odd register pairs.
        * config/rs6000/rs6000.h [SLOW_UNALIGNED_ACCESS]: Treat DDmode and
        TDmode similar to the other floating point modes.
        [SECONDARY_MEMORY_NEEDED]: Treat DDmode similar to DFmode.
        * config/rs6000/dfp.md (negdd2, absdd2, negtd2, abstd2): New
        define_expand's.
        (negdd2_fpr, absdd2_fpr, nabsdd2_fpr, negtd2_fpr, abstd2_fpr,
        nabstd2_fpr, movdd_hardfloat64_mfpgpr): New define_insn's.
        (movdd_hardfloat64): Use TARGET_MFPGPR.

2007-04-17  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload1.c (delete_output_reload): Don't count output in n_inherited.

        Revert
        2005-01-05  Richard Henderson  <rth@redhat.com>
        PR rtl-opt/10692
        * reload1.c (do_input_reload): Restrict the optimization deleteing
        a previous output reload to RELOAD_FOR_INPUT.

2007-04-17  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vectorizer.h (stmt_vec_info_type): Add enum value
        induc_vec_info_type.
        (vectorizable_induction): New function declaration.
        * tree-vect-transform.c (get_initial_def_for_induction): No need to
        check if already vectorized.  Find first place in BB where new stmts
        can be inserted.  Takes only one argument.
        (vectorizable_induction): New function.
        (vect_transform_stmt): Add case for induc_vec_info_type to call
        vectorizable_induction.
        (vect_transform_loop): Consider phis for vectorization.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Simplify
        condition.
        (analyze_operations): Call vectorizable_induction when analyzing phis.
        Fix comment.
        (vect_mark_stmts_to_be_vectorized): Remove redundant checks.
        (vect_mark_relevant): Include phis in relevance analysis.
        (vect_mark_stmts_to_be_vectorize): Likewise.
        * tree-vect-patterns.c (widened_name_p): Remove obsolete asserts.

2007-04-16  Lawrence Crowl  <crowl@google.com>

        * doc/invoke.texi (Debugging Options): Add documentation for the
        -femit-struct-debug options -femit-struct-debug-baseonly,
        -femit-struct-debug-reduced, and
        -femit-struct-debug-detailed[=...].

        * c-opts.c (c_common_handle_option): Add
        OPT_femit_struct_debug_baseonly, OPT_femit_struct_debug_reduced,
        and OPT_femit_struct_debug_detailed_.
        * c.opt: Add specifications for
        -femit-struct-debug-baseonly, -femit-struct-debug-reduced,
        and -femit-struct-debug-detailed[=...].
        * opts.c (set_struct_debug_option): Parse the
        -femit-struct-debug-... options.
        * opts.c (matches_main_base, main_input_basename,
        main_input_baselength, base_of_path, matches_main_base): Add
        variables and functions to compare header base name to compilation
        unit base name.
        * opts.c (should_emit_struct_debug): Add to determine to emit a
        structure based on the option.
        (dump_struct_debug) Also disabled function to debug this
        function.
        * opts.c (handle_options): Save the base name of the
        compilation unit.

        * langhooks-def.h (LANG_HOOKS_GENERIC_TYPE_P): Define.
        (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add.
        This hook indicates if a type is generic.  Set it by default
        to "never generic".
        * langhooks.h (struct lang_hooks_for_types): Add a new hook
        to determine if a struct type is generic or not.
        * cp/cp-tree.h (class_tmpl_impl_spec_p): Declare a C++ hook.
        * cp/tree.c (class_tmpl_impl_spec_p): Implement the C++ hook.
        * cp/cp-lang.c (LANG_HOOKS_GENERIC_TYPE_P): Override null C hook
        with live C++ hook.

        * flags.h (enum debug_info_usage): Add an enumeration to describe
        a program's use of a structure type.
        * dwarf2out.c (gen_struct_or_union_type_die): Add a new parameter
        to indicate the program's usage of the type.  Filter structs based
        on the -femit-struct-debug-... specification.
        (gen_type_die): Split into two routines, gen_type_die and
        gen_type_die_with_usage.  gen_type_die is now a wrapper
        that assumes direct usage.
        (gen_type_die_with_usage): Replace calls to gen_type_die
        with gen_type_die_with_usage adding the program usage of
        the referenced type.
        (dwarf2out_imported_module_or_decl): Suppress struct debug
        information using should_emit_struct_debug when appropriate.

2007-04-16  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31522
        * tree-vrp.c (vr_phi_edge_counts): New static variable.
        (vrp_initialize): Allocate vr_phi_edge_counts.
        (vrp_visit_phi_node): Don't push to infinity if we saw a new
        executable edge.  Drop test for all constants.
        (vrp_finalize): Free vrp_phi_edge_counts.

        * doc/cpp.texi (Common Predefined Macros): Clarify description of
        __GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.

        * tree-ssa-propagate.c (cfg_blocks_add): Insert blocks with fewer
        predecessors at head rather than tail.

2007-04-16  Matthias Klose  <doko@debian.org>

        * config/alpha/linux.h (CPP_SPEC): Define.
        * config/arm/linux-gas.h (SUBTARGET_CPP_SPEC): Extend.

2007-04-16  Aldy Hernandez  <aldyh@redhat.com>

        * function.h: Remove sequence_stack extern declaration.

2007-04-16  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.h (LONG_DOUBLE_TYPE_SIZE): Change to 64 on
        TARGET_FIDOA.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Change to 64 if __mfido__ is
        defined.

2007-04-16  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_arch_types): Rearranging  array.
        (enum avr_arch): Add.
        (avr_mcu_types): Use avr_arch enumeration constants instead of
        numbers.
        * config/avr/avr.h (LINK_SPEC): Simplify.

2007-04-16  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (m68k_libcall_value,
        m68k_function_value): Use macros for register names more.

        * config/m68k/m68k.h (FRAME_POINTER_REGNUM): Use A6_REG
        instead.
        (M68K_REGNAME): Use A6_REG.
        * config/m68k/m68k.md (FP_REG): Rename to A6_REG.

2007-04-16  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR middle-end/28071
        * sched-int.h (struct deps): Split field 'pending_lists_length' into
        'pending_read_list_length' and 'pending_write_list_length'.  Update
        comment.
        * sched-deps.c (add_insn_mem_dependence): Change signature.  Update
        to handle two length counters instead of one.  Update all uses.
        (flush_pending_lists, sched_analyze_1, init_deps): Update to handle
        two length counters instead of one.
        * sched-rgn.c (propagate_deps): Update to handle two length counters
        instead of one.

2007-04-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/31582
        * config/i386/i386.c (ix86_expand_vec_set_builtin): Make a
        copy of source, pass it to ix86_expand_vector_set and return
        it as target.

2007-04-16  David Ung  <davidu@mips.com>
            Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.h (PROCESSOR_74KC, PROCESSOR_74KF,
        PROCESSOR_74KX, TUNE_74K, GENERATE_MADD_MSUB): Define.
        * config/mips/mips.c (mips_cpu_info_table, mips_rtx_cost_data):
        Add 74K processor information.
        * config/mips/mips.md: Include 74k.md.
        (cpu): Add 74kc,74kf,74kx.
        (ISA_HAS_MADD_MSUB): Change to GENERATE_MADD_MSUB throughout.
        * config/mips/74k.md: New.
        * doc/invoke.texi (MIPS Options): Document 74K support.

2007-04-16  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-analyze.c (vect_analyze_operations): Reorganize calls to
        vectorizable_* functions.
        * tree-vect-transform.c (vectorizable_call): Add check for
        STMT_VINFO_RELEVANT_P, STMT_VINFO_DEF_TYPE and STMT_VINFO_LIVE_P.
        (vectorizable_store): likewise.
        (vectorizable_conversion): Add check for STMT_VINFO_DEF_TYPE.
        Add comments.
        (vectorizable_operation, vectorizable_type_demotion): Likewise.
        (vectorizable_type_promotion, vectorizable_load): Likewise.
        (vectorizable_live_operation, vectorizable_condition): Likewise.
        (vectorizable_assignment): Add check for STMT_VINFO_DEF_TYPE and
        STMT_VINFO_LIVE_P.
        (vect_transform_stmt): Reorganize calls to vectorizable_* functions.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/linux.h (FUNCTION_VALUE_REGNO_P): Use macros for
        register numbers more.
        * config/m68k/m68k.h (STACK_POINTER_REGNUM,
        FRAME_POINTER_REGNUM, STATIC_CHAIN_REGNUM,
        M68K_STRUCT_VALUE_REGNUM, FUNCTION_VALUE, LIBCALL_VALUE,
        FUNCTION_VALUE_REGNO_P): Likewise.
        * config/m68k/m68kelf.h (M68K_STRUCT_VALUE_REGNUM,
        STATIC_CHAIN_REGNUM): Likewise.
        * config/m68k/m68kemb.h (FUNCTION_VALUE_REGNO_P): Likewise.
        * config/m68k/netbsd-elf.h (M68K_STRUCT_VALUE_REGNUM,
        STATIC_CHAIN_REGNUM, FUNCTION_VALUE_REGNO_P): Likewise.
        * config/m68k/m68k.md (FP_REG): New.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Prefer 32-bit
        alignment on fido.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

        * config/i386/i386.c, config/s390/s390.c, config/s390/s390.md,
        tree-ssa-loop-niter.c, tree-ssa-structalias.c, tree-vrp.c: Fix
        comment typos.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Ignore
        cold loops.

2007-04-14  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR c/31520
        * c-decl.c (finish_decl): Grab the type of the decl after the call
        to store_init_value.

2007-04-14  Steven Bosscher  <steven@gcc.gnu.org>

        * common.opt (fforward-propagate): Fix "Optimization" annotation.

2007-04-14  Jakub Jelinek  <jakub@redhat.com>

        PR c++/25874
        * omp-low.c (expand_omp_parallel): If child_cfun->cfg, free dominators,
        post dominators and cleanup cfg before returning.

2007-04-14  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.h (MODES_TIEABLE_P): Allow more modes to be tied.
        * config/bfin/bfin.md (movsi_insn): Delete two unused alternatives.

2007-04-14  Kazu Hirata  <kazu@codesourcery.com>

        * config.gcc: Recognize fido.
        * config/m68k/m68k-devices.def (fidoa): New.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define
        __mfido__.
        (FL_FIDOA, TARGET_FIDOA): New.
        * config/m68k/m68k.opt (mfidoa): New.

2007-04-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/31322
        * dwarf2out.c (output_call_frame_info): Call assemble_external_libcall
        when a personality function is used.

2007-04-13  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (xtensa_expand_builtin): Use CALL_EXPR_FN.

2007-04-13  Mike Stump  <mrs@apple.com>

        * config/darwin-c.c (handle_c_option): Handle -fapple-kext here so
        we can...
        * config/darwin.opt (fapple-kext): Make C++ only.
        * config/darwin.c (darwin_override_options): Remove code to ensure
        -fapple-kext is given for C++ only.

2007-04-13  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/vxworks.h (SUBTARGET_OVERRIDE_OPTIONS): Define.
        * config/mips/mips.c (override_options): Call
        SUBTARGET_OVERRIDE_OPTIONS, if defined.

2007-04-13  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.opt (msvr3-shlib): Removed.

        * doc/invoke.texi: Remove -msvr3-shlib.

2007-04-13  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.opt (mpopcnt): Replace "popcount" instruction
        with "popcnt" instruction.

2007-04-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/21258
        * tree-vrp.c (compare_case_labels): New helper.
        (find_switch_asserts): New function.
        (find_assert_locations): Call it for SWITCH_EXPRs.

2007-04-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (X87_FLOAT_MODE_P): Check for TARGET_80387.
        * config/i386/i386.md (*cmpfp0): Remove check for TARGET_80387, this
        check is now implied in X87_FLOAT_MODE_P.
        (*cmpfp_u, *cmpfp_<mode>, *cmpfp_i_i387): Ditto.
        (*cmpfp_iu_387, fix_trunc<mode>_fisttp_i386_1): Ditto.
        (fix_trunc<mode>_i386_fisttp): Ditto.
        (fix_trunc<mode>_i387_fisttp_with_temp): Ditto.
        (*fix_trunc<mode>_i387_1, fix_truncdi_i387): Ditto.
        (fix_truncdi_i387_with_temp, fix_trunc<mode>_i387): Ditto.
        (fix_trunc<mode>_i387_with_temp, *fp_jcc_1_387): Ditto.
        (*fp_jcc_2_387, *fp_jcc_5_387, *fp_jcc_6_387): Ditto.
        (*fp_jcc_7_387, *fp_jcc_8<mode>_387): Ditto.
        (unnamed_splitters): Ditto.
        * config/i386/i386.c (function_value_32): Generate FIRST_FLOAT_REG
        for X87_FLOAT_MODE_P mode.  Override FIRST_FLOAT_REG with
        FIRST_SSE_REG for local functions when SSE math is enabled or
        for functions with sseregparm attribute.
        (standard_80387_constant_p): Return -1 if mode is not
        X87_FLOAT_MODE_P.
        (ix86_cc_mode): Assert that scalar mode is not DECIMAL_FLOAT_MODE_P.
        (ix86_expand_compare): Ditto.
        (ix86_expand_carry_flag_compare): Ditto.
        (ix86_expand_int_movcc): Check for SCALAR_FLOAT_MODE_P instead
        of FLOAT_MODE_P for cmp_mode and assert that cmp_mode is not
        DECIMAL_FLOAT_MODE_P.
        (ix86_preferred_output_reload_class): Use X87_FLOAT_MODE_P instead
        of SCALAR_FLOAT_MODE_P.
        (ix86_rtx_costs) [PLUS] Remove FLOAT_MODE_P and fall through to ...
        [MINUS]: ... here.  Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P
        checks before FLOAT_MODE_P.
        [MULT]: Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P checks
        before FLOAT_MODE_P.
        [DIV]: Ditto.
        [NEG]: Ditto.
        [ABS]: Ditto.
        [SQRT]: Ditto.
        [FLOAT_EXTEND]: Use SSE_FLOAT_MODE_P.

2007-04-12  Paolo Bonzini  <bonzini@gnu.org>
            Charles Wilson  <libtool@cwilson.fastmail.fm>

        * Makefile.in (stamp-as, stamp-collect-ld, stamp-nm): Remove.
        (libgcc.mvars): Don't depend on them.
        * configure.ac (as, collect-ld, nm): Create from exec-tool.in.
        * exec-tool.in: New.

2007-04-12  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/invoke.text (--help): Document --help=common.

2007-04-12  Thomas Neumann  <tneumann@users.sourceforge.net>

        * stub-objc.c (objc_build_keyword_decl): Avoid C++ keywords.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (insn-emit.o): Depend on $(INTEGRATE_H).
        * genemit.c (main): Emit #include "integrate.h".
        * config/mips/mips-protos.h (SYMBOL_HALF): New mips_symbol_type.
        (LOADGP_RTP): New mips_loadgp_style.
        * config/mips/mips.h: Include config/vxworks-dummy.h.
        (TARGET_RTP_PIC): New macro.
        (TARGET_USE_GOT): Return true for TARGET_RTP_PIC.
        (TARGET_USE_PIC_FN_ADDR_REG): Return true for TARGET_VXWORKS_RTP.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Emit function-relative case tables
        for TARGET_RTP_PIC.
        * config/mips/vxworks.h (SUBTARGET_ASM_SPEC): Define.  Pass down
        -mvxworks-pic when using -mrtp and a PIC option.
        * config/mips/mips.c (mips_classify_symbol): Return SYMBOL_GOT_DISP
        for RTP PIC.
        (mips_symbolic_constant_p, mips_symbolic_address_p)
        (mips_symbol_insns): Handle SYMBOL_HALF.
        (override_options): Warn about -G and -mrtp being used together.
        Initialize mips_lo_relocs[SYMBOL_HALF].
        (mips_current_loadgp_style): Return LOADGP_RTP for RTP PIC.
        (mips_emit_loadgp): Handle LOADGP_RTP.
        (mips_in_small_data_p): Return false for TARGET_VXWORKS_RTP.
        * config/mips/mips.md (loadgp_rtp): New insn and splitter.
        (tablejump): Handle function-relative case table entries if
        TARGET_RTP_PIC.
        * config/mips/predicates.md (symbol_ref_operand): New predicate.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.md (load_call<mode>): Allow any general register.
        destination.
        (sibcall_value_internal, sibcall_value_multiple_internal)
        (call_value_internal, call_value_split, call_value_multiple_internal)
        (call_value_multiple_split): Remove constraints from operand 0.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-protos.h: In comments, refer to loadgp_absolute
        rather than loadgp_noshared.
        * config/mips/mips.c (mips_emit_loadgp): Use gen_loadgp_absolute
        instead of gen_loadgp_noshared.  Use gen_loadgp_newabi instead of
        gen_loadgp.
        * config/mips/mips.md (loadgp): Rename to...
        (loadgp_newabi): ...this.
        (loadgp_noshared): Rename to...
        (loadgp_absolute): ...this.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.c (mips_ok_for_lazy_binding_p): Always return
        false for locally-binding symbols.
        (mips_dangerous_for_la25_p): Check mips_global_symbol_p.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips-protos.h (SYMBOL_GOT_LOCAL): Rename to...
        (SYMBOL_GOT_PAGE_OFST): ...this.
        (SYMBOL_GOT_GLOBAL): Rename to...
        (SYMBOL_GOT_DISP): ...this.
        (SYMBOL_GOTOFF_GLOBAL): Rename to...
        (SYMBOL_GOTOFF_DISP): ...this.  Update comments accordingly.
        * config/mips/mips.c (mips_global_symbol_p): New function.
        (mips_symbol_binds_local_p): Likewise.
        (mips_classify_symbol): Rename SYMBOL_GOT_GLOBAL to SYMBOL_GOT_DISP
        and SYMBOL_GOT_LOCAL to SYMBOL_GOT_PAGE_OFST.  Use mips_global_symbol_p
        and mips_symbol_binds_local_p.
        (mips_symbolic_constant_p, mips_symbolic_address_p, mips_symbol_insns)
        (override_options): Rename SYMBOL_GOT_GLOBAL to SYMBOL_GOT_DISP,
        SYMBOL_GOT_LOCAL to SYMBOL_GOT_PAGE_OFST and SYMBOL_GOTOFF_GLOBAL to
        SYMBOL_GOTOFF_DISP.
        (mips_ok_for_lazy_binding_p): New function.
        (mips_load_call_address, mips_expand_call): Use it.
        (mips_dangerous_for_la25_p): Likewise.
        * config/mips/mips.md (*xgot_hi<mode>, *xgot_lo<mode>)
        (*got_disp<mode>): Use got_disp_operand instead of
        global_got_operand.  Use SYMBOL_GOTOFF_DISP instead of
        SYMBOL_GOTOFF_GLOBAL.
        (*got_page<mode>): Use got_page_ofst_operand instead of
        local_got_operand.
        * config/mips/predicates.md (const_call_insn_operand): Use
        SYMBOL_GOT_DISP instead of SYMBOL_GOT_GLOBAL.
        (global_got_operand): Rename to...
        (got_disp_operand): ...this and use SYMBOL_GOT_DISP instead of
        SYMBOL_GOT_GLOBAL.
        (local_got_operand): Rename to...
        (got_page_ofst_operand): ...this and use SYMBOL_GOT_PAGE_OFST instead
        of SYMBOL_GOT_LOCAL.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/mips/mips.h (TARGET_SPLIT_CALLS): Check
        TARGET_CALL_CLOBBERED_GP.
        (TARGET_SIBCALLS): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        (TARGET_USE_GOT, TARGET_CALL_CLOBBERED_GP): New macros.
        (TARGET_CALL_SAVED_GP, TARGET_USE_PIC_FN_ADDR_REG): Likewise.
        (STARTING_FRAME_OFFSET): Check TARGET_CALL_CLOBBERED_GP instead
        of TARGET_ABICALLS && !TARGET_NEWABI.
        (MIPS_CALL): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        * config/mips/mips.c (mips_load_call_address): Check
        TARGET_CALL_SAVED_GP instead of TARGET_NEWABI.
        (mips_global_pointer): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        Check TARGET_CALL_SAVED_GP instead of TARGET_NEWABI.
        (mips_save_reg_p): Check TARGET_CALL_SAVED_GP instead of
        TARGET_ABICALLS && TARGET_NEWABI.
        (mips_current_loadgp_style): Check TARGET_USE_GOT instead of
        TARGET_ABICALLS.
        (mips_expand_prologue): Check TARGET_OLDABI instead of !TARGET_NEWABI.
        (mips_expand_epilogue): Check TARGET_CALL_SAVED_GP instead of
        TARGET_ABICALLS && TARGET_NEWABI.
        (mips_output_mi_thunk): Check TARGET_USE_GOT instead of
        TARGET_ABICALLS.  Check TARGET_CALL_SAVED_GP instead of
        TARGET_NEWABI.  Use TARGET_USE_PIC_FN_ADDR_REG to decide
        whether indirect calls must use $25.
        (mips_extra_live_on_entry): Check TARGET_GOT instead of
        TARGET_ABICALLS.
        * config/mips/mips.md (jal_macro): Check flag_pic and
        TARGET_CALL_CLOBBERED_GP instead of TARGET_ABICALLS and TARGET_NEWABI.
        (builtin_setjmp_setup, builtin_longjmp): Check TARGET_USE_GOT
        instead of TARGET_ABICALLS.
        (exception_receiver): Check TARGET_CALL_CLOBBERED_GP instead of
        TARGET_ABICALLS && TARGET_OLDABI.
        (load_call<mode>): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
        (sibcall): In the comment above the define_insn, mention
        TARGET_USE_PIC_FN_ADDR_REG instead of TARGET_ABICALLS.
        * config/mips/constraints.md (c): Check TARGET_USE_PIC_FN_ADDR_REG
        instead of TARGET_ABICALLS.

2007-04-12  Bernd Schmidt  <bernd.schmidt@analog.com>

        * doc/md.texi (Blackfin family constraints): Document PA and PB.
        * config/bfin/bfin.h (CONST_OK_FOR_P): Handle PA and PB.
        (MACFLAGS_MATCH_P): New macro.
        * config/bfin/bfin.c (print_operand): Handle MACFLAG_IS_M.
        (bfin_secondary_reload): Treat EVEN_AREGS and ODD_AREGS like AREGS.
        * config/bfin/bfin.md (MACFLAG_IS_M): New constant.  Renumber some of
        the other MACFLAG constants.
        (sum_of_accumulators, lshrpdi3, ashrpdi3): New patterns.
        (flag_machi): Tighten constraints.  Renumber some of the operands.
        (flag_machi_acconly): Tighten constraints.  Correct operand numbers in
        output template.
        (flag_machi_parts_acconly): New pattern.
        (flag_macinithi): Tighten constraints.  Allow any accumulator to be
        used.
        (flag_macinit1hi): Tighten constraints.
        (flag_mul_macv2hi_parts_acconly): New pattern.

        * config/bfin/lib1funcs.asm (___umulsi3_highpart, __smulsi3_highpart):
        Use a more efficient implementation.
        * config/bfin/bfin.md (umulsi3_highpart, smulsi3_highpart): Emit
        inline sequences when not optimizing for size.

        * config/bfin/bfin.md (movhi_low2high, movhi_high2high, movhi_low2low,
        movhi_high2low): Delete, merge functionality into...
        (packv2hi): ... this pattern.

        2007-02-11  Jie Zhang  <jie.zhang@analog.com>
        * config/bfin/bfin.opt (msim): New option.
        (mcpu=): New option.
        * config/bfin/bfin-protos.h (enum bfin_cpu): New.
        (bfin_cpu_t): Typedef of enum bfin_cpu.
        (bfin_cpu_type): New declaration.
        * config/bfin/elf.h (STARTFILE_SPEC): Add support for
        -msim and -mcpu= options.
        (LIB_SPEC): Likewise.
        * config/bfin/bfin.c (bfin_cpu_type): Define.
        (bfin_handle_option): Handle -mcpu= option.
        * config/bfin/bfin.h (DEFAULT_CPU_TYPE): Define as BFIN_CPU_BF532.
        (TARGET_CPU_CPP_BUILTINS): Define __ADSPBF531__, __ADSPBF532__,
        __ADSPBF533__ or __ADSPBF537__ according to the cpu type.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (*-*-vxworks*): Don't add to tm_files in this stanza.
        (arm-wrs-vxworks, mips-wrs-vxworks, powerpc-wrs-vxworks)
        (powerpc-wrs-vxworksae): Use ${tm_file}.
        (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add svr4.h
        after elfos.h.  Remove i386/sysv4.h and add i386/vx-common.h.
        * config/i386/vx-common.h: New file.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_STARTFILE_SPEC): Use -l:crt0.o instead
        of crt0.o%s.

2007-04-12  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("trunctddd2"): Use TDmode for the target of
        ldxtr.

2007-04-12  Douglas Gregor  <doug.gregor@gmail.com>

        PR c++/31078
        PR c++/31103
        * c-common.c (c_build_qualified_type): Set canonical type
        appropriately.

2007-04-12  Richard Guenther  <rguenther@suse.de>

        * tree-pretty-print.c (dump_generic_node): Print ARRAY_REF
        lower bound and element size if lower bound is not zero
        or either of the ARRAY_REF operands is set.

2007-04-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/24689
        PR tree-optimization/31307
        * fold-const.c (operand_equal_p): Compare INTEGER_CST array
        indices by value.
        * gimplify.c (canonicalize_addr_expr): To be consistent with
        gimplify_compound_lval only set operands two and three of
        ARRAY_REFs if they are not gimple_min_invariant.  This makes
        it never at this place.
        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Likewise.

2007-04-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (pa_som_asm_init_sections): Ensure that cfun->machine is not
        null before emitting a .nsubspa directive.

2007-04-11  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-alias.c (dump_mem_ref_stats): Do not call
        need_to_partition_p if there are no memory statements in the
        function.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-data-ref.c (chrec_steps_divide_constant_p): Removed.
        (gcd_of_steps_may_divide_p): New function.
        (analyze_miv_subscript): Use gcd_of_steps_may_divide_p.

2007-04-11  Bernd Schmidt  <bernd.schmidt@analog.com>

        * reload.c (find_reloads_toplev, find_reloads_address,
        find_reloads_address_1, find_reloads_subreg_address): Use rtx_equal_p,
        not a pointer equality test, to decide if we need to call
        push_reg_equiv_alt_mem.

2007-04-11  Sebastian Pop  <sebastian.pop@inria.fr>

        * tree-data-ref.c (affine_function_zero_p, constant_access_functions,
        insert_innermost_unit_dist_vector, add_distance_for_zero_overlaps): New.
        (build_classic_dist_vector): Call add_distance_for_zero_overlaps.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-data-ref.c (add_multivariate_self_dist): Force the distance
        vector to be positive.

2007-04-11  Diego Novillo  <dnovillo@redhat.com>

        PR 30735
        PR 31090
        * doc/invoke.texi: Document --params max-aliased-vops and
        avg-aliased-vops.
        * tree-ssa-operands.h (get_mpt_for, dump_memory_partitions,
        debug_memory_partitions): Move to tree-flow.h
        * params.h (AVG_ALIASED_VOPS): Define.
        * tree-ssa-alias.c (struct mp_info_def): Remove.  Update all
        users.
        (mp_info_t): Likewise.
        (get_mem_sym_stats_for): New.
        (set_memory_partition): Move from tree-flow-inline.h.
        (mark_non_addressable): Only clear the set of symbols for the
        partition if it exists.
        (dump_memory_partitions): Move from tree-ssa-operands.c
        (debug_memory_partitions): Likewise.
        (need_to_partition_p): New.
        (dump_mem_ref_stats): New.
        (debug_mem_ref_stats): New.
        (dump_mem_sym_stats): New.
        (debug_mem_sym_stats): New.
        (update_mem_sym_stats_from_stmt): New.
        (compare_mp_info_entries): New.
        (mp_info_cmp): Call it.
        (sort_mp_info): Change argument to a list of mem_sym_stats_t
        objects.
        (get_mpt_for): Move from tree-ssa-operands.c.
        (find_partition_for): New.
        (create_partition_for): Remove.
        (estimate_vop_reduction): New.
        (update_reference_counts): New.
        (build_mp_info): New.
        (compute_memory_partitions): Refactor.
        Document new heuristic.
        Call build_mp_info, update_reference_counts,
        find_partition_for and estimate_vop_reduction.
        (compute_may_aliases): Populate virtual operands before
        calling debugging dumps.
        (delete_mem_sym_stats): New.
        (delete_mem_ref_stats): New.
        (init_mem_ref_stats): New.
        (init_alias_info): Call it.
        (maybe_create_global_var): Remove alias_info argument.
        Get number of call sites and number of pure/const call sites
        from gimple_mem_ref_stats().
        (dump_alias_info): Call dump_memory_partitions first.
        (dump_points_to_info_for): Show how many times a pointer has
        been dereferenced.
        * opts.c (decode_options): For -O2 set --param
        max-aliased-vops to 500.
        For -O3 set --param max-aliased-vops to 1000 and --param
        avg-aliased-vops to 3.
        * fortran/options.c (gfc_init_options): Remove assignment to
        MAX_ALIASED_VOPS.
        * tree-flow-inline.h (gimple_mem_ref_stats): New.
        * tree-dfa.c (dump_variable): Dump memory reference
        statistics.
        Dump NO_ALIAS* settings.
        (referenced_var_lookup): Tidy.
        (mem_sym_stats): New.
        * tree-ssa-copy.c (may_propagate_copy): Return true if DEST
        and ORIG are different SSA names for a memory partition.
        * tree-ssa.c (delete_tree_ssa): Call delete_mem_ref_stats.
        * tree-flow.h (struct mem_sym_stats_d): Define.
        (mem_sym_stats_t): Define.
        (struct mem_ref_stats_d): Define.
        (struct gimple_df): Add field mem_ref_stats.
        (enum noalias_state): Define.
        (struct var_ann_d): Add bitfield noalias_state.
        (mem_sym_stats, delete_mem_ref_stats, dump_mem_ref_stats,
        debug_mem_ref_stats, debug_memory_partitions,
        debug_mem_sym_stats): Declare.
        * tree-ssa-structalias.c (update_alias_info): Update call
        sites, pure/const call sites and asm sites in structure
        returned by gimple_mem_ref_stats.
        Remove local variable IS_POTENTIAL_DEREF.
        Increase NUM_DEREFS if the memory expression is a potential
        dereference.
        Call update_mem_sym_stats_from_stmt.
        If the memory references memory, call
        update_mem_sym_stats_from_stmt for all the direct memory
        symbol references found.
        (intra_create_variable_infos): Set noalias_state field for
        pointer arguments according to the value of
        flag_argument_noalias.
        * tree-ssa-structalias.h (struct alias_info): Remove fields
        num_calls_found and num_pure_const_calls_found.
        (update_mem_sym_stats_from_stmt): Declare.
        * params.def (PARAM_MAX_ALIASED_VOPS): Change description.
        Set default value to 100.
        (PARAM_AVG_ALIASED_VOPS): Define.

2007-04-11  Richard Guenther  <rguenther@suse.de>

        PR middle-end/31530
        * simplify-rtx.c (simplify_binary_operation_1): Do not simplify
        a * -b + c as c - a * b if we honor sign dependent rounding.

2007-04-11  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin-protos.h (bfin_expand_movmem): Renamed from
        bfin_expand_strmov.
        * config/bfin/bfin.c (bfin_expand_prologue, bfin_delegitimize_address,
        bfin_function_ok_for_sibcall, split_load_immediate): Remove unused
        variables.
        (initialize_trampoline): Don't use old-style function definition.
        (bfin_secondary_reload): Mark IN_P argument as unused.

2007-04-10  Sebastian Pop  <sebastian.pop@inria.fr>

        PR tree-optimization/31343
        * tree-chrec.h (chrec_zerop): Moved before build_polynomial_chrec.
        (build_polynomial_chrec): Return a scalar when the evolution is zero.
        * testsuite/gcc.dg/vect/pr31343.c: New.

2007-04-10  Eric Christopher  <echristo@apple.com>

        * config/i386/i386.h (X87_FLOAT_MODE_P): New.
        * config/i386/i386.md (*cmpfp0): Use.
        (*cmpfp_u, *cmpfp_<mode>, *cmpfp_i_i387): Ditto.
        (*cmpfp_iu_387, fix_trunc<mode>_fisttp_i386_1): Ditto.
        (fix_trunc<mode>_i386_fisttp): Ditto.
        (fix_trunc<mode>_i387_fisttp_with_temp): Ditto.
        (*fix_trunc<mode>_i387_1, fix_truncdi_i387): Ditto.
        (fix_truncdi_i387_with_temp, fix_trunc<mode>_i387): Ditto.
        (fix_trunc<mode>_i387_with_temp, *fp_jcc_1_387): Ditto.
        (*fp_jcc_2_387, *fp_jcc_5_387, *fp_jcc_6_387): Ditto.
        (*fp_jcc_7_387, *fp_jcc_8<mode>_387): Ditto.
        (unnamed_splitters): Ditto.
        * config/i386/i386.c (output_fix_trunc): Assert that
        we're not being passed a TFmode operand.

2007-04-10  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31526
        * tree-inline.c (copy_cfg_body): Use last_basic_block instead of
        n_basic_blocks to find newly added blocks.

2007-04-10  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fix_trunc<mode>di_sse): Remove "x" from "xm"
        alternative.
        (fix_trunc<mode>si_sse): Ditto.
        (*floatsisf2_mixed, *floatsisf2_sse): Ditto.
        (*floatsidf2_mixed, *floatsidf2_sse): Ditto.
        (*floatdisf2_mixed, *floatdisf2_sse): Ditto.
        (*floatdidf2_mixed, *floatdidf2_sse): Ditto.
        (floathi<mode>2): Rename from floathisf2 and floathidf2. Macroize
        expander using SSEMODEF mode macro.
        (floatsi<mode>2): Rename from floatsisf2 and floashidf2. Macroize
        expander using SSEMODEF mode macro.
        (*floathi<mode>2_i387): Rename from *floathisf2_i387 and
        *floathidf2_i387. Macroize insn using X87MODEF12 mode macro.
        (*floatsi<mode>2_i387): Rename from *floatsisf2_i387 and
        *floatsidf2_i387. Macroize insn using X87MODEF12 mode macro.
        (*floatdi<mode>2_i387): Rename from *floatdisf2_i387 and
        *floatdidf2_i387. Macroize insn using X87MODEF12 mode macro.
        (float<mode>xf2): Rename from floathixf2, floatsixf2 and floatdixf2.
        Macroize insn using X87MODEF mode macro.

2007-04-09  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/sse.md (sse2_pinsrw): Removed.
        (sse2_pextrw): Renamed to ...
        (*sse2_pextrw): This.

2007-04-09  Jan Hubicka  <jh@suse.cz>

        PR target/27869
        * config/i386/sse.md
        (sse_vmaddv4sf3, sse_vmmulv4sf3): Remove '%' modifier.
        (sse_vmsmaxv4sf3_finite, sse_vmsminv4sf3_finite): Remove.
        (sse2_vmaddv2df3, sse2_vmmulv2df3): Remove '%' modifier.
        (sse2_vmsmaxv2df3_finite, sse2_vmsminv2df3_finite): Remove.

2007-04-09  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-ccp (maybe_fold_offset_to_component_ref): Recurse into
        multiple fields of union.

2007-04-09  Zdenek Dvorak  <dvorakz@suse.cz>

        * cfgloopmanip.c (create_preheader): Do not use loop_preheader_edge.
        (create_preheaders): Check that loops are available.
        (fix_loop_structure): Clean up, improve comments.
        * tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa):
        Check that loops are available.  Set LOOP_CLOSED_SSA to the loops
        state flags.
        * tree-scalar-evolution.c (scev_finalize): Clear scalar_evolution_info.
        * predict.c (tree_estimate_probability): Do not call
        calculate_dominance_info.  Call create_preheaders.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Only call
        rewrite_into_loop_closed_ssa if LOOP_CLOSED_SSA is set in loops state
        flags.
        * cfgloop.c (loop_preheader_edge): Assert that loops have preheaders.
        * cfgloop.h (LOOP_CLOSED_SSA): New constant.
        * tree-cfg.c (tree_split_edge): Make an assert more precise.
        * tree-ssa-threadedge.c (thread_across_edge): Comment the function
        arguments.

2007-04-08  Jan Hubicka  <jh@suse.cz>

        * tree.h (maybe_fold_offset_to_component_ref): Declare.
        * tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Export.
        * fold-const.c (fold_unary): Use it.

2007-04-08  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * varasm.c (assemble_variable): Remove call to
        lang_hooks.decls.prepare_assemble_variable.
        * langhooks-def.h (LANG_HOOKS_PREPARE_ASSEMBLE_VARIABLE): Kill.
        (LANG_HOOKS_DECLS): Remove LANG_HOOKS_PREPARE_ASSEMBLE_VARIABLE.
        * langhooks.h (lang_hooks_for_decls): Remove
        prepare_assemble_variable.

2007-04-08  Mike Stump  <mrs@apple.com>

        * config/i386/i386.c: Use inc/dec on Core2.

2007-04-08  Steven Bosscher  <steven@gcc.gnu.org>

        * langhooks.c (lhd_tree_inlining_add_pending_fn_decls,
        lhd_tree_inlining_anon_aggr_type_p, lhd_tree_inlining_start_inlining,
        lhd_tree_inlining_end_inlining): Remove.
        * langhooks.h (struct lang_hooks_for_tree_inlining): Remove then
        add_pending_fn_decls, anon_aggr_type_p, start_inlining, and
        end_inlining hooks.
        * langhooks-def.h (lhd_tree_inlining_add_pending_fn_decls,
        lhd_tree_inlining_anon_aggr_type_p, lhd_tree_inlining_start_inlining,
        lhd_tree_inlining_end_inlining): Remove prototypes.
        (LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS,
        LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P,
        LANG_HOOKS_TREE_INLINING_START_INLINING,
        LANG_HOOKS_TREE_INLINING_END_INLINING): Remove.

        * c-objc-common.h (LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P): Do
        not set it.

2007-04-08  Anatoly Sokolov <aesok@post.ru>

        PR target/29932
        * config/avr/predicates.md (io_address_operand): Delete predicate.
        (low_io_address_operand): Don't use 'mode' argument.
        (higth_io_address_operand): Rename ...
        (high_io_address_operand): ... to this. Don't use 'mode' argument.
        * config/avr/avr.md (*sbix_branch_tmp, *sbix_branch_tmp_bit7): Adjust
        for above change.

2007-04-07  Daniel Berlin  <dberlin@dberlin.org>

        Revert change removing staticp.

2007-04-07  Anatoly Sokolov <aesok@post.ru>

        PR target/30289
        * config/avr/avr.md (*clrmemqi, *clrmemhi): Mark operand 4 as
        earlyclobber.

2007-04-07  Bruce Korb  <bkorb@gnu.org>

        * c.opt: Add -Wformat-contains-nul.
        * c-format.c (set_Wformat):  Set warn_format_contains_nul to the
          -Wformat setting.
        (check_format_info_main): Check OPT_Wformat_contains_nul before emitting
        the NUL byte warning.

2007-04-07  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_handle_option): Handle SSSE3.

2007-04-06  Daniel Berlin  <dberlin@dberlin.org>

        * tree.c (staticp): No longer use staticp langhook.
        * langhooks.c (lhd_staticp): Removed.
        * langhooks.h (struct lang_hooks): Remove staticp.
        * c-common.c (c_staticp): Remove.
        * c-common.h (c_staticp): Ditto.
        * langhooks-defs.h (lhd_staticp): Ditto.
        (LHD_HOOKS_STATICP): Ditto
        * tree.h (gcc_assert_lowered): New macro.

2007-04-06  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (idx_infer_loop_bounds): Add and use
        argument "reliable".
        (infer_loop_bounds_from_ref, infer_loop_bounds_from_array):
        Add argument "reliable".  Propagate it through calls.
        (infer_loop_bounds_from_undefined):  Derive number of iterations
        estimates from references in blocks that do not dominate loop latch.
        (gcov_type_to_double_int): New function.
        (estimate_numbers_of_iterations_loop): Use gcov_type_to_double_int
        and expected_loop_iterations_unbounded.
        * cfgloopanal.c (expected_loop_iterations_unbounded): New function.
        (expected_loop_iterations): Use expected_loop_iterations_unbounded.
        * tree-data-ref.c (estimated_loop_iterations): Export.
        (get_references_in_stmt): Fix -- do not return addresses of local
        objects.
        * cfgloop.h (expected_loop_iterations_unbounded,
        estimated_loop_iterations): Declare.

2007-04-06  Andreas Tobler  <a.tobler@schweiz.org>

        * tree-sra.c (sra_build_elt_assignment): Initialize min/maxshift.

2007-04-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (extend<mode>xf2): Rename from extendsfxf2
        and extenddfxf2. Macroize expander using X87MODEF12 mode macro.
        (*truncdfsf_mixed, *truncdfsf_i387, *truncdfsf2_i387_1):
        Use output_387_reg_move().
        (*truncxf<mode>2): Rename from *truncxfsf2 and truncxfdf2. Macroize
        expander using X87MODEF12 mode macro.
        (*truncxfsf2_mixed): Combine alternatives, ignore "r" alternative when
        choosing register preferences.  Use output_387_reg_move().
        (*truncxfdf2_mixed): Combine alternatives, use "r" alternative
        instead of "x".  Use output_387_reg_move().
        (*truncxf<mode>2_i387_noop): Rename from *truncxfsf2_i387_noop and
        *truncxfdf2_i387_noop.  Macroize insn using X87MODEF12 mode macro.
        (*truncxf<mode>2_i387): Rename from *truncxfsf2_i387 and
        *truncxfdf2_i387.  Macroize insn using X87MODEF12 mode macro.
        Use output_387_reg_move().
        (*truncxf?f_mixed splitter): Macroize splitter using X87MODEF12
        mode macro.
        (*truncxf?f_i387 splitter): Ditto.

2007-04-06  Daniel Berlin  <dberlin@dberlin.org>

        * langhooks-def.h (LANG_HOOKS_INITIALIZER): Remove
        LANG_HOOKS_SAFE_FROM_P.
        * expr.c (safe_from_p): Remove langhook call.
        * langhooks.h (lang_hooks): Remove safe_from_p.
        (lhd_safe_from_p): Remove prototype.
        * langhooks.c (lhd_safe_from_p): Remove.

2007-04-06  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Do not keep always_inline
        functions.

2007-04-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (output_387_reg_move): Handle memory operand[0].
        * config/i386/i386.md (*movsf_1, *movdf_nointeger,
        *movdf_integer_rex64, *movdf_integer, *movxf_nointeger,
        *movxf_integer): Use output_387_reg_move() for x87 reg->mem
        alternative.
        (*extendsfdf2_mixed, *extendsfdf2_i387, *extendsfxf2_i387,
        *extenddfxf2_i387, *truncdfsf_fast_mixed): Ditto.

2007-04-05  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (print_operand) [+]: Remove.
        (alpha_end_function): Print nop if call at end of function.
        * config/alpha/alpha.h (PRINT_OPERAND_PUNCT_VALID_P): Remove +.
        * config/alpha/alpha.md (UNSPEC_LDGP1): New.
        (call_osf_1_er_noreturn, call_value_osf_1_er_noreturn): New.
        (call_osf_2_er_nogp, call_value_osf_2_er_nogp): New.
        (call_osf_2_er, call_value_osf_2_er): Merge the ldgp highpart into
        the call pattern. Update peepholes to match.

2007-04-05  Janis Johnson  <janis187@us.ibm.com>

        * doc/extend.texi (Other Builtins): Add decimal float variants
        of signbit.
        * builtins.def: Ditto.
        * builtins.c (expand_builtin): Ditto.

2007-04-05  Uros Bizjak  <ubizjak@gmail.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/31478
        * config/i386/sse.md (sse2_umulv2siv2di3): Use V4SImode instead
        of V8HImode when calling ix86_binary_operator_ok.
        (sse2_pmaddwd): Call ix86_binary_operator_ok.
        (sdot_prodv8hi): Operands 1 and 2 must be register.

2007-04-05  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (try_instantiate_multiple_fields): Needlessly
        initialize align to silence bogus warning.

2007-04-05  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/22156
        * tree-sra.c (struct sra_elt): Add in_bitfld_block.  Remove
        all_no_warning.
        (struct sra_walk_fns): Remove use_all parameter from use.
        (sra_hash_tree): Handle BIT_FIELD_REFs.
        (sra_elt_hash): Don't hash bitfld blocks.
        (sra_elt_eq): Skip them in parent compares as well.  Handle
        BIT_FIELD_REFs.
        (sra_walk_expr): Don't maintain or pass down use_all_p.
        (scan_use): Remove use_all parameter.
        (scalarize_use): Likewise.  Re-expand assignment to
        BIT_FIELD_REF of gimple_reg.  De-scalarize before input or
        output, and re-scalarize after output.  Don't mark anything
        for no warning.
        (scalarize_ldst): Adjust.
        (scalarize_walk_gimple_modify_statement): Likewise.
        (build_element_name_1): Handle BIT_FIELD_REFs.
        (instantiate_element): Don't warn for any element whose parent
        is used as a whole.
        (instantiate_missing_elements_1): Return the sra_elt.
        (canon_type_for_field): New.
        (try_instantiate_multiple_fields): New.
        (instantiate_missing_elemnts): Use them.
        (mark_no_warning): Removed.
        (generate_one_element_ref): Handle BIT_FIELD_REFs.
        (REPLDUP, sra_build_elt_assignment): New.
        (generate_copy_inout): Use them.
        (generate_element_copy): Likewise.  Handle bitfld differences.
        (generate_element_zero): Don't recurse for blocks.  Use
        sra_build_elt_assignment.
        (generate_one_element_int): Take elt instead of var.  Use
        sra_build_elt_assignment.
        (generate_element_init_1): Adjust.
        (scalarize_use, scalarize_copy): Use REPLDUP.
        (scalarize_ldst): Move assert before dereference.
        (dump_sra_elt_name): Handle BIT_FIELD_REFs.

2007-04-05  Steven Bosscher  <steven@gcc.gnu.org>

        * regmove.c: Fix unused variable warnings due to previous commit.

2007-04-05  Steven Bosscher  <steven@gcc.gnu.org>

        * regmove.c (STACK_GROWS_DOWNWARD): Don't boolean-ize.
        (regmove_bb_head): Remove.
        (copy_src_to_dest): Don't update regmove_bb_head and BB_HEAD.
        (regmove_optimize): Don't do unnecessary CFG fixes for non-existing
        problems with fixup_match_1.
        Don't initialize/free regmove_bb_head.

        (reg_is_remote_constant_p): If an insn is in the same basic block
        but not before INSN, consider it remote, too.

2007-04-05  Anatoly Sokolov <aesok@post.ru>

        PR target/25448
        * config/avr/avr.c (avr_handle_fndecl_attribute): Use the
        DECL_ASSEMBLER_NAME, not the DECL_NAME.

2007-04-05  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Reformat.
        (CONDITIONAL_REGISTER_USAGE): Likewise.

2007-04-04  Richard Henderson  <rth@redhat.com>

        * config/alpha/lib1funcs.asm: Remove unused file.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

        PR other/31356
        * opts.c (print_specific_help): Fix --help=<language>
        header line.
        (common_handle_option): Support --help=common.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

        PR other/31353
        * gcc.c (main): Do not run the linker if
        print_subprocess_help indicates that it shouldn't be
        run.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

        PR doc/31355
        * doc/invoke.texi (--help=): Document <languages> value, fix
        formatting in tables of values.

2007-04-04  Danny Smith  <dannysmith.users.sourceforge.net>

        * config/i386/winnt-cxx.c (i386_pe_type_dllimport_p): Don't ignore
        dllimport attribute of virtual methods.

2007-04-04  Chen Liqin  <liqin@sunnorth.com.cn>

        * config/score/crti.asm: Change _bss_start to __bss_start.
        * config/score/score.h (CONDITIONAL_REGISTER_USAGE): Added.
        (OUTGOING_REG_PARM_STACK_SPACE) update.
        * config/score/score.opt: add options to make backend support
        score5, score5u, score7 and score7d.
        * config/score/score.md: Likewise.
        * config/score/misc.md: Likewise.
        * config/score/mac.md: Likewise.
        * doc/invoke.texi: Likewise.
        * doc/md.texi: update constraints define.

2007-04-03  Richard Henderson  <rth@redhat.com>

        * expr.c (store_expr): If get_signed_or_unsigned_type doesn't yield
        an appropriate type, use the mode instead.

2007-04-03  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (mips-wrs-vxworks): Add vx-common.h to tm_file.
        Set the default --with-arch setting to mips2.
        * config/mips/t-vxworks (MULTILIB_OPTIONS, MULTILIB_MATCHES)
        (MULTILIB_EXCEPTIONS): Redefine with new multilibs.
        (MULTILIB_OSDIRNAMES): Delete.
        (MULTILIB_DIRNAMES): Define.
        * config/mips/vxworks.h (LINK_SPEC): Add VXWORKS_LINK_SPEC.
        (LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Define.
        (TARGET_OS_CPP_BUILTINS): Incorporate old SUBTARGET_CPP_SPEC
        definitions, except for _WRS_R3K_EXC_SUPPORT.  Call
        VXWORKS_OS_CPP_BUILTINS.
        (SUBTARGET_CPP_SPEC): Redefine to VXWORKS_ADDITIONAL_CPP_SPEC.
        (MIPS_DEBUGGING_INFO): Undefine.
        (FUNCTION_PROFILER): Define to VXWORKS_FUNCTION_PROFILER.

2007-04-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/30704
        * fold-const.c (native_encode_real): Encode real.c provided longs
        as a series of 32-bit native integers.
        (native_interpret_real): Interpret buffer as a series of 32-bit
        native integers.

2007-04-03  Richard Guenther  <rguenther@suse.de>

        * genpreds.c (write_insn_constraint_len): Write function
        optimized for CONSTRAINT_LEN implementation.
        (write_tm_preds_h): Output insn_constraint_len inline and
        use it for CONSTRAINT_LEN.
        (write_insn_preds_c): Don't output insn_constraint_len.
        * doc/md.texi (define_register_constraint): Document multi-letter
        constraints shall have the same length if they start with the same
        letter.

2007-04-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31175
        * config/i386/i386.md (isinf<mode>2): Expand only when
        TARGET_C99_FUNCTIONS is set.

2007-04-03  Uros Bizjak  <ubizjak@gmail.com>

        * config.gcc (i[34567]86-*-linux*): Add i386/t-crtpc to tm-file.
        (x86_64-*-linux*): Ditto.
        * config/i386/i386.opt (mpc): New option.
        * config/i386/i386.c (overrride_options): Handle
        ix87_precision_string.
        * config/i386/crtprec.c: New file.
        * config/i386/t-crtpc: Ditto.
        * config/i386/linux.h (ENDFILE_SPEC): Add handling of -mpc32, -mpc64
        and -mpc80 options.
        * config/i386/linux64.h (ENDFILE_SPEC): Ditto.
        * config/i386/t-linux64 (EXTRA_MULTILIB_PARTS): Add
        crtprec32.o, crtprec64.o and crtprec80.o.

        * doc/invoke.texi (Machine Dependent Options): Add -mpc32, -mpc64
        and -mpc80 options.
        (i386 and x86-64 Options): Document -mpc32, -mpc64 and -mpc80 options.

2007-04-02  Eric Christopher  <echristo@apple.com>

        * doc/invoke.texi (i386 and x86-64 Options): Document -m64
        limitations on darwin.

2007-04-02  Anatoly Sokolov <aesok@post.ru>

        PR target/31137
        * config/avr/avr.c (avr_rtx_costs): Add missing 'break' statements.

2007-04-02  Dave Korn  <dave.korn@artimi.com>

        * doc/tm.texi (FUNCTION_MODE): Update and extend documentation.

2007-04-02  Dave Korn  <dave.korn@artimi.com>

        * libgcc2.h (exception_descriptor): Don't forward-declare.
        (__get_eh_table_language, __get_eh_table_version): Delete
        prototypes of long-dead functions.

2007-04-01  Daniel Berlin  <dberlin@dberlin.org>

        * ebitmap.h: New file
        * ebitmap.c: New file
        * Makefile.in (ebitmap.o): New target.

2007-04-01  Jan Hubicka  <jh@suse.cz>

        * emit-rtl.c (emit_insn_before_setloc): Do not ICE when asked to emit
        before very first instruction.

2007-04-01  Jan Hubicka  <jh@suse.cz>

        * ggc-page.c (ggc_print_statistics): Fix formatting string to avoid
        waring on 64bit hosts.
        * bitmap.h: Fix typo in bitmap_head_def.

2007-04-01  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/31391
        * cfgcleanup.c (try_optimize_cfg): If a removed label is turned
        into a DELETED_LABEL note, and the label is in an empty basic
        block, update BB_END as well as BB_HEAD.

2007-04-01  Richard Henderson  <rth@redhat.com>

        PR tree-optimization/31169
        * tree-vrp.c (extract_range_from_binary_expr) <RSHIFT_EXPR>: Drop
        to varying if the range is outside [0,  prec-1].

2007-04-01  Richard Sandiford  <richard@codesourcery.com>

        PR target/31388
        * config/mips/mips.md (load_const_gp): New insn.
        * config/mips/mips.c (mips_split_symbol): Avoid using or creating
        the MIPS16 GP pseudo register if no_new_pseudos.
        (mips16_gp_pseudo_reg): Use gen_load_const_gp.

2007-03-31  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/31364
        * config/rs6000/rs6000.md (call): Convert to LR hard reg for
        secureplt.
        (call_value): Likewise.

2007-03-31  Wolfgang Bangerth  <bangerth@dealii.org>
            Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 14737
        * doc/invoke.texi: (optimization options): Reword description
        of -ffast-math. Document its primary purpose.

2007-03-31  Richard Guenther  <rguenther@suse.de>

        * omp-low.c (splay-tree.h): Include.
        (lookup_decl): Replace splay-tree usage by pointer-map.
        (maybe_lookup_decl): Likewise.
        (new_omp_context): Likewise.
        (delete_omp_context): Likewise.
        * gimplify.c (splay-tree.h): Include.
        * tree-inline.c (insert_decl_map): Replace splay-tree usage by
        pointer-map.
        (remap_ssa_name): Likewise.
        (remap_decl): Likewise.
        (remap_type_1): Likewise.
        (remap_type): Likewise.
        (copy_body_r): Likewise.
        (expand_call_inline): Likewise.
        (clone_body): Likewise.
        (copy_tree_r): Likewise.
        (remap_save_expr): Likewise.
        (unsave_r): Likewise.
        (unsave_expr_now): Likewise.
        (tree_function_versioning): Likewise.
        (build_duplicate_type): Likewise.
        * tree-inline.h (pointer-set.h): Include instead of splay-tree.h.
        (struct copy_body_data): Replace splay-tree by pointer-map.
        * Makefile.in (TREE_INLINE_H): Depend on pointer-map.h,
        not $(SPLAY_TREE_H).
        (gimplify.o): Depend on $(SPLAY_TREE_H).
        (omp-low.p): Likewise.

2007-03-31  Anatoly Sokolov <aesok@post.ru>

        * config/avr/predicates.md (even_register_operand,
        odd_register_operand): New predicates.
        * config/avr/avr.md (movw peephole2): New.
        (movw_r peephole2): New.

2007-03-30  Rafael Avila de Espindola  <espindola@google.com>

        * tree.h (get_signed_or_unsigned_type): New.
        * fold-const.c (operand_equal_for_comparison_p): Use
        get_signed_or_unsigned_type instead of
        lang_hooks.types.signed_or_unsigned_type.
        * expr.c (store_expr): Ditto.
        * langhooks.c (get_signed_or_unsigned_type): New.
        (lhd_signed_or_unsigned_type): New.
        * langhooks.h (lhd_signed_or_unsigned_type): New.
        * langhooks-def.h (LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): Define.

2007-03-30  Richard Henderson  <rth@redhat.com>

        * tree-ssa-loop-ivopts.c: Include target.h.
        (produce_memory_decl_rtl): Pass the rtx through encode_section_info.
        (get_address_cost): Force SYMBOL_FLAG_LOCAL set.
        (force_expr_to_var_cost): Use produce_memory_decl_rtl.
        * Makefile.in (tree-ssa-loop-ivopts.o): Depend on TARGET_H.

2007-03-30  Richard Henderson  <rth@redhat.com>
            Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygming.h (DWARF2_DEBUGGING_INFO): Enable by
        default for 64-bit.
        (PREFERRED_DEBUGGING_TYPE): Prefer dwarf2 for 64-bit.
        (TARGET_64BIT_MS_ABI): New.
        (DBX_REGISTER_NUMBER): Handle 64-bit.
        (SIZE_TYPE, PTRDIFF_TYPE): Use long long for 64-bit.
        (LONG_TYPE_SIZE): Force to 32.
        (REG_PARM_STACK_SPACE): New.
        (OUTGOING_REG_PARM_STACK_SPACE): New.
        (REGPARM_MAX, SSE_REGPARM_MAX): New.
        (HANDLE_PRAGMA_PUSH_POP_MACRO): New.
        (STACK_BOUNDARY): Use 128 for 64-bit.
        * config/i386/cygwin.asm: Use push/ret to preserve call stack.
        Add 64-bit implementation.
        * config/i386/gthr-win32.c (__gthr_win32_key_create): Mark dtor
        argument unused.
        * config/i386/i386.c (x86_64_ms_abi_int_parameter_registers): New.
        (override_options): Set ix86_cmodel for TARGET_64BIT_MS_ABI.
        Warn for -mregparm, -mrtd in 64-bit mode; force ix86_regparm
        for 64-bit; use TARGET_SUBTARGET64_DEFAULT.
        (ix86_handle_cconv_attribute): Don't warn when ignoring if
        TARGET_64BIT_MS_ABI.
        (ix86_function_arg_regno_p): Handle TARGET_64BIT_MS_ABI.
        (ix86_pass_by_reference): Likewise.
        (ix86_function_value_regno_p): Likewise.
        (ix86_build_builtin_va_list): Likewise.
        (ix86_va_start, ix86_gimplify_va_arg): Likewise.
        (function_arg_advance_ms_64): New.
        (function_arg_advance): Call it.
        (function_arg_ms_64): New.
        (function_arg): Call it.
        (function_value_ms_64): New.
        (ix86_function_value_1): Call it.
        (return_in_memory_ms_64): New.
        (ix86_return_in_memory): Call it.
        (setup_incoming_varargs_ms_64): New.
        (ix86_setup_incoming_varargs): Call it.
        (ix86_expand_prologue): Handle 64-bit stack probing.
        (legitimize_pic_address): Handle TARGET_64BIT_MS_ABI.
        (output_pic_addr_const): Likewise.
        (x86_this_parameter): Likewise.
        (x86_output_mi_thunk): Likewise.
        (x86_function_profiler): Likewise.
        (TARGET_STRICT_ARGUMENT_NAMING): New.
        * config/i386/i386.h (TARGET_SUBTARGET64_DEFAULT): New.
        (TARGET_64BIT_MS_ABI): New.
        (CONDITIONAL_REGISTER_USAGE): Handle TARGET_64BIT_MS_ABI.
        * config/i386/i386.md (allocate_stack_worker): Remove.
        (allocate_stack_worker_32): Rename from allocate_stack_worker_1;
        describe the clobber of eax without a match_scratch.
        (allocate_stack_worker_postreload): Remove.
        (allocate_stack_worker_64): Rename from allocate_stack_worker_rex64;
        describe the clobbers of rax, r10, r11 properly; use __chkstk symbol.
        (allocate_stack_worker_rex64_postreload): Remove.
        (allocate_stack): Handle 64-bit.
        * config/i386/i386elf (TARGET_SUBTARGET_DEFAULT): Remove.
        * config/i386/mingw32.h (TARGET_VERSION): Set correctly for 64-bit.
        (EXTRA_OS_CPP_BUILTINS): Handle 64-bit.
        (STANDARD_INCLUDE_DIR): Handle TARGET_64BIT_DEFAULT.
        (STANDARD_STARTFILE_PREFIX_1): Likewise.
        * config/i386/unix.h (TARGET_SUBTARGET64_DEFAULT): New.
        * config.build (x86_64-*-mingw*): New host.
        * config.host (x86_64-*-mingw*): New host.
        * config.gcc (x86_64-*-mingw*): New target.
        * gthr-win32.h (__gthread_key_create): Mark dtor unused.

2007-03-30  Richard Henderson  <rth@redhat.com>
            Kai Tietz  <kai.tietz@onevision.com>

        * c-pragma.c (struct def_pragma_macro_value): New.
        (struct def_pragma_macro): New.
        (pushed_macro_table): New.
        (dpm_hash, dpm_eq): New.
        (handle_pragma_push_macro, handle_pragma_pop_macro): New.
        (init_pragma): Install them.
        * doc/tm.texi (HANDLE_PRAGMA_PUSH_POP_MACRO): New.

2007-03-30  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_override_options): Clear
        'flag_delete_null_pointer_checks'.

2007-03-30  Paolo Carlini  <pcarlini@suse.de>

        PR c++/26099
        * c-common.h (enum rid): Add RID_HAS_NOTHROW_ASSIGN,
        RID_HAS_NOTHROW_CONSTRUCTOR, RID_HAS_NOTHROW_COPY,
        RID_HAS_TRIVIAL_ASSIGN, RID_HAS_TRIVIAL_CONSTRUCTOR,
        RID_HAS_TRIVIAL_COPY, RID_HAS_TRIVIAL_DESTRUCTOR,
        RID_HAS_VIRTUAL_DESTRUCTOR, RID_IS_ABSTRACT, RID_IS_BASE_OF,
        RID_IS_CONVERTIBLE_TO, RID_IS_CLASS, RID_IS_EMPTY, RID_IS_ENUM,
        RID_IS_POD, RID_IS_POLYMORPHIC, RID_IS_UNION, as
        C++ extensions.
        * doc/extend.texi (Extensions to the C++ Language): Add Type Traits.

2007-03-30  Steven Bosscher  <steven@gcc.gnu.org>

        * regmove.c: Move all of pass_stack_adjustments from here...
        * combine-stack-adj.c: ...to this new file.
        * Makefile.in: Add rules for combine-stack-adj.o.

2007-03-30  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31383
        * tree-data-ref.c (affine_function_equal_p): Do not require the vectors
        to have the same length.

2007-03-30  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30700
        * dwarf2out.c (reference_to_unused): Ask cgraph for functions
        availablility; add more sanity checking; ask varpool only about
        VAR_DECL.

2007-03-29  Richard Henderson  <rth@redhat.com>

        * unwind-generic.h (_sleb128_t, _uleb128_t): Don't use HAVE_LONG_LONG
        to decide, but __SIZEOF_LONG_LONG__.

2007-03-29  Richard Henderson  <rth@redhat.com>

        * emutls.c (struct __emutls_array): New.
        (emutls_destroy): Use it instead of casting element 0 from void*.
        (__emutls_get_address): Likewise.

2007-03-29  Richard Henderson  <rth@redhat.com>

        * varasm.c (initializer_constant_valid_p): Don't deny
        DECL_DLLIMPORT_P on functions.

        * config/i386/cygming.h: Remove function declarations.
        (SUBTARGET_ENCODE_SECTION_INFO): Don't undef first.
        (ASM_OUTPUT_LABELREF): Remove.
        (COMMON_ASM_OP): Remove.
        (ASM_OUTPUT_COMMON): Remove.
        (ASM_OUTPUT_ALIGNED_DECL_COMMON): New.
        (ASM_DECLARE_OBJECT_NAME): Use i386_pe_maybe_record_exported_symbol.
        (ASM_DECLARE_FUNCTION_NAME): Likewise.
        * config/i386/i386-interix.h (SUBTARGET_ENCODE_SECTION_INFO):
        Rename from TARGET_ENCODE_SECTION_INFO.
        * config/i386/netware.h: Likewise.
        * config/i386/i386-protos.h: Update.
        * config/i386/i386.c (ix86_function_ok_for_sibcall): Turn ifdef
        of TARGET_DLLIMPORT_DECL_ATTRIBUTES into straight if.
        (legitimate_constant_p): Reject dllimports.
        (dllimport_map, get_dllimport_decl): New.
        (legitimize_dllimport_symbol): New.
        (legitimize_address, ix86_expand_move): Use it.
        (TARGET_BINDS_LOCAL_P): Redefine for TARGET_DLLIMPORT_DECL_ATTRIBUTES.
        * config/i386/i386.h (DLL_IMPORT_EXPORT_PREFIX): Remove.
        (SYMBOL_FLAG_DLLIMPORT, SYMBOL_REF_DLLIMPORT_P): New.
        (SYMBOL_FLAG_DLLEXPORT, SYMBOL_REF_DLLEXPORT_P): New.
        * config/i386/predicates.md (constant_call_address_operand): Only
        accept symbols; reject dllimport_p symbols.
        * config/i386/uwin.h (ASM_DECLARE_FUNCTION_NAME): Use
        i386_pe_maybe_record_exported_symbol.
        * config/i386/winnt.c (DLL_IMPORT_PREFIX, DLL_EXPORT_PREFIX): Remove.
        (i386_pe_determine_dllexport_p): Rename from i386_pe_dllexport_p.
        (i386_pe_determine_dllimport_p): Rename from i386_pe_dllimport_p;
        trust the setting of DECL_DLLIMPORT_P.
        (i386_pe_dllexport_name_p, i386_pe_dllimport_name_p): Remove.
        (i386_pe_mark_dllexport, i386_pe_mark_dllimport): Remove.
        (gen_stdcall_or_fastcall_suffix): Return NULL if no change required;
        tidy the argument scanning loop.
        (i386_pe_encode_section_info): Set SYMBOL_FLAG_DLLIMPORT and
        SYMBOL_FLAG_DLLEXPORT in SYMBOL_REF_FLAGS.
        (i386_pe_strip_name_encoding): Remove.
        (i386_pe_binds_local_p): New.
        (i386_pe_strip_name_encoding_full): Use default_strip_name_encoding.
        (i386_pe_output_labelref): Remove.
        (i386_pe_asm_output_aligned_decl_common): New.
        (i386_pe_maybe_record_exported_symbol): Rename from
        i386_pe_record_exported_symbol; check for dllexported symbols.

2007-03-29  Zack Weinberg  <zack@mrtock.ucsd.edu>

        * gengtype.c (oprintf): Mostly revert changes from 2007-03-26;
        add comment explaining why vsnprintf cannot be used.

2007-03-29  Douglas Gregor  <doug.gregor@gmail.com>

        PR tree-optimization/30666
        * tree.c (build_complex_type): When creating type names for DWARF2
        debug info, create TYPE_DECLs for TYPE_NAME instead of
        IDENTIFIER_NODEs.
        (build_common_tree_nodes_2): Use build_complex_type when building
        predefined complex types, to preserve canonical types.

2007-03-29  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (struct noce_if_info): Add then_else_reversed field.
        (noce_get_alt_condition): Look at it to determine whether to
        reverse the condition or not.
        (noce_get_condition): Substitute the truth for lies.
        (noce_find_if_block): Set the then_else_reversed field.

2007-03-29  Lars Poeschel <larsi@wh2.tu-dresden.de>

        * config/fr30/fr30.md (movdi): Do not accept immediates as the
        destination of this insn.
        * config/fr30/fr30.c (fr30_move_double): Use emit_move_insn rather
        than calling gen_rtx_SET directly.  Use r0 to hold the value of
        'address + 4' rather than a stack based temporary which can be
        mis-optimized away.

2007-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_secondary_input_reload_class,
        s390_secondary_output_reload_class): Functions removed.
        (s390_secondary_reload): New function.
        (TARGET_SECONDARY_RELOAD): Target macro defined.
        * config/s390/s390.h (SECONDARY_INPUT_RELOAD_CLASS,
        SECONDARY_OUTPUT_RELOAD_CLASS): Macro definitions removed.
        * config/s390/s390.md ("reload_outti", "reload_outdi",
        "reload_indi", "reload_insi", "reload_out<mode>", "reload_in<mode>",
        "reload_out<mode>"): Expanders removed.
        ("reload<mode>_plus", "reload<mode>_nonoffmem_in",
        "reload<mode>_nonoffmem_out"): Expanders added.

2007-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

        * regmove.c (optimize_reg_copy_1): Don't perform DEST->SRC repair action if
        SRC->DEST replacement failed anyway.

2007-03-28  Mike Stump  <mrs@apple.com>

        * config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Add.
        * config/darwin.h (MAX_OFILE_ALIGNMENT): Fix.
        * config/rs6000/darwin.h (ASM_OUTPUT_ALIGNED_COMMON): Removed #undef.

2007-03-28  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>

        * config.gcc: Accept barcelona as a variant of amdfam10.
        * config/i386/i386.c (override_options): Likewise.
        * doc/invoke.texi: Likewise.

2007-03-28  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-dfa.c (get_ref_base_and_extent): Do not expect positive
        offsets for BIT_FIELD_REF and COMPONENT_REF.

2007-03-28  Richard Guenther  <rguenther@suse.de>

        * tree.c (is_global_var): Move ...
        * tree-flow-inline.h (is_global_var): ... here.
        * tree.h (is_global_var): Remove declaration.

2007-03-28  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (X86_TUNE_PROMOTE_HIMODE_IMUL): New tuning
        option.
        (TARGET_TUNE_PROMOTE_HIMODE_IMUL): New define. Use new tuning option.
        * config/i386/i386.c (ix86_tune_features): Initialize new
        tuning option.
        * config/i386/predicates.md (promotable_binary_operator): Use
        TARGET_TUNE_PROMOTE_HIMODE_IMUL.

2007-03-28  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>

        PR target/31380
        * config/i386/sse.md (uminv16qi3): Use UMIN instead of UMAX.

2007-03-28  Lars Poeschel <larsi@wh2.tu-dresden.de>

        * config/fr30/fr30.md (movsi_internal): Change destination
        constraint from m to V and add m to the end.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

        * config/sh/sh.md (movsi_i): Fix type attribute.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

        * config/sh/sh.md (movsi_ie): Fix memory constraints attribute length.
        (movsf_ie): Likewise.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

        * config.gcc: Add sh4-300 to multilib.
        * config/sh/t-mlib-sh4-300: New file.

2007-03-28  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md ("fix_trunc<mode>di2"): New expander.
        ("fix_trunc<DFP:mode>di2_dfp"): New insn definition renamed from
        fix_trunc<mode>di2.
        ("fixuns_truncdddi2", "fixuns_trunctddi2"): Use
        fix_trunc<DFP:mode>di2_dfp instead of fix_trunc<mode>di2.
        ("fix_truncdfsi2", "fix_truncsfsi2", "fixuns_truncdddi2",
        "fixuns_trunctddi2"): Whitespace fix.

2007-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (CALL_COOKIE_RET_TRAMP_SHIFT): Move after
        the definition of struct sh_args.
        (CALL_COOKIE_RET_TRAMP, CALL_COOKIE_STACKSEQ_SHIFT,
        CALL_COOKIE_INT_REG_GET): Likewise.

2007-03-28  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (cond_exec_find_if_block): Return FALSE if no
        transformations are applied successfully.

2007-03-27  Douglas Gregor  <doug.gregor@gmail.com>

        * tree.c (tree_contains_struct): Permit 512 tree codes.
        * tree.h (tree_contains_struct): Ditto.
        (MAX_TREE_CODES): Ditto.
        (struct tree_base): Make CODE 16 bits, instead of 8 bits. Add
        SPARE member to store remaining padding bits.

2007-03-27  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Move at90usb82 device to 'avr4'
        architecture.

2007-03-27  Janis Johnson  <janis187@us.ibm.com>

        * configure.ac: Fix assembler test for powerpc*-linux decimal float.
        * configure: Regenerate.

        * configure: Regenerate using the correct version of autoconf.

2007-03-27  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.c (avr_hard_regno_mode_ok): Disallow QImode in stack
        pointer regs.
        * config/avr/avr.h (REGISTER_NAMES): Rename "__SPL__" and "__SPH__"
        regs to "__SP_L__" and "__SP_H__".

2007-03-27  Richard Guenther  <rguenther@suse.de>

        * tree-dfa.c (get_ref_base_and_extent): Replace bit_offset and
        computations with it with a HOST_WIDE_INT variable.

2007-03-26  Mike Stump  <mrs@apple.com>

        * config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Add
        objective-c-header, objective-c++-header and objc++-cpp-output
        support.
        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.

2007-03-26  Richard Henderson  <rth@redhat.com>

        PR target/31361
        * config/i386/i386.c (IX86_BUILTIN_PSLLDQ128, IX86_BUILTIN_PSLLW128,
        IX86_BUILTIN_PSLLD128, IX86_BUILTIN_PSLLQ128, IX86_BUILTIN_PSRAW128,
        IX86_BUILTIN_PSRAD128, IX86_BUILTIN_PSRLW128, IX86_BUILTIN_PSRLD128,
        IX86_BUILTIN_PSRLQ128): New.
        (ix86_init_mmx_sse_builtins): Add them.
        (ix86_expand_builtin): Expand them.
        * config/i386/sse.md (ashr<mode>3, lshr<mode>3, ashl<mode>3): Make
        operand 2 be TImode.
        * config/i386/emmintrin.h (_mm_slli_epi64, _mm_srai_epi16,
        _mm_srai_epi32, _mm_srli_epi16, _mm_srli_epi32,
        _mm_srli_epi64): Mark __B const.
        (_mm_srli_si128, _mm_srli_si128): Fix disabled inline versions.
        (_mm_sll_epi16, _mm_sll_epi32, _mm_sll_epi64, _mm_sra_epi16,
        _mm_sra_epi32, _mm_srl_epi16, _mm_srl_epi32, _mm_srl_epi64): Use
        new two-vector shift builtins.

2007-03-26  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31345
        * tree-vrp.c (extract_range_from_binary_expr): Turn ranges like
        [+INF, +INF(OVF)] into VARYING.

2007-03-26  Zack Weinberg  <zackw@panix.com>

        * gengtype-parse.c: New file.
        * gengtype-yacc.y: Delete.
        * gengtype-lex.l: Don't include gengtype-yacc.h.
        Define YY_DECL and yyterminate appropriately for recursive
        descent parser.  yylval is now a string out-parameter to yylex.
        (HWS, EOID): New shorthand.
        (IWORD): Add a couple more types.
        (yylex): Add a setup stanza.  Remove the complex rules for
        detecting GTY'ed types and typedefs; replace with simple
        keyword detectors.  Adjust everything for the changed
        definition of yylval.  Ignore all pp-directives, not just #define.
        (yyerror): Delete.
        (parse_file): Rename yybegin; do not call yyparse.
        (yyend): New.
        * gengtype.c (xasprintf): Export again.
        (this_file): New.  Use everywhere __FILE__ was being used.
        (get_lang_bitmap): Special case types defined in gengtype.c.
        (do_typedef, new_structure): Suppress definition of certain types.
        (new_structure): Improve diagnostics of duplicate definitions.
        Make sure location_s is associated with input.h.
        (nreverse_pairs, define_location_structures): New functions.
        (main): Improve tagging of kludge types.  Remove old kludges
        for input.h types; use define_location_structures.
        * gengtype.h: Update prototypes.  Define token codes here.
        * Makefile.in: Remove all references to gengtype-yacc.
        Add rules for gengtype-parse.o.  Adjust rules for gengtype-lex.o
        and gengtype.
        * bitmap.h (struct bitmap_head_def): Coalesce definitions,
        add GTY((skip)) to the field that's only conditionally there.
        * doc/install.texi: Document that Bison is no longer required
        unless building treelang.

        * gengtype.c: Don't include gtyp-gen.h.
        (srcdir): Declare here.
        (base_files, lang_dir_names): Allocate dynamically.
        (gt_files, num_gt_files, num_lang_dirs): New globals.
        (measure_input_list, read_input_line, read_input_list)
        (set_lang_bitmap): New functions.
        (get_base_file_bitmap): Rename get_lang_bitmap and drastically
        simplify, relying on read_input_list to set up the bitmaps.
        (main): Arguments are no longer unused.  Check for correct number
        of command line arguments, set srcdir and srcdir_len, then call
        read_input_list, before doing anything else.  No need to worry
        about duplicates in main loop.
        * configure.ac: Simplify the calculation of all_gtfiles.
        Put language tags in there.  Don't set or substitute
        all_gtfiles_files_langs or all_gtfiles_files_frags.
        * Makefile.in: Revamp the way gengtype is invoked, now that it
        takes a file on its command line with a much simpler format.
        Remove or replace with gtyp-input.list all references to gtyp-gen.h.
        (GTFILES): Remove duplicates and C source files.
        * c-config-lang.in, cp/config-lang.in, objc/config-lang.in
        * objcp/config-lang.in: Add c-pragma.h to gtfiles.
        * configure: Regenerate.

        * gengtype.h: Remove all type definitions to gengtype.c; leave
        only definitions of options_p, type_p, and pair_p as opaque
        pointers.  Update prototypes.
        * gengtype.c: Many type definitions moved here from gengtype.h.
        Consolidate type definitions at the top of the file.
        (xvasprintf): Delete.
        (xasprintf): Make static.
        (create_nested_pointer_option): Add 'next' parameter.
        (create_field_all, create_field_at): New functions.
        (create_field): Now a thin wrapper around create_field_all.
        (create_optional_field): Rename create_optional_field_ and add
        line argument.  Original name is now a macro which supplies
        __LINE__.
        (oprintf): Use vsnprintf directly.
        (close_output_files): Use fatal rather than perror/exit.
        (note_def_vec, note_def_vec_alloc): Use create_field_at.
        (main): Set progname.  Don't use exit.
        * gengtype-yacc.y (struct_fields): Use create_field_at.
        (option, optionseqopt): Delete.
        (optionseq): Consolidate productions from option here so we
        can use the first argument to create_option.

        * gengtype-lex.l: Distinguish unions from structures in the
        token type.  Don't call find_structure; return the tag as a string.
        * gengtype-yacc.y: Add new token types ENT_TYPEDEF_UNION and ENT_UNION.
        Type of these, ENT_TYPEDEF_STRUCT, and ENT_STRUCT is string.
        Reorganize typedef_struct production accordingly.
        Use create_nested_ptr_option.
        * gengtype.c (create_nested_ptr_option): New function.
        * gengtype.h: Declare it.

        * gengtype.h (struct type): Replace 'sc' with boolean, scalar_is_char.
        (string_type): Don't declare.
        (do_scalar_typedef): Declare.
        (create_scalar_type): Update prototype.
        * gengtype.c (string_type): Make static.
        (scalar_nonchar, scalar_char): New.
        (do_scalar_typedef): Export.  Always use scalar_nonchar for the type.
        (resolve_typedef): Use scalar_nonchar for error recovery.
        (create_scalar_type): Remove name_len field.  Return scalar_char
        or scalar_nonchar as appropriate.
        (adjust_field_type): Look at scalar_is_char boolean to decide whether
        to use string_type.
        (throughout): Use scalar_nonchar instead of calling create_scalar_type,
        whenever possible.
        (main): Initialize scalar_char and scalar_nonchar before calling
        gen_rtx_next.
        * gengtype-lex.l: Adjust for removal of second argument to
        create_scalar_type.  Use yylval.s instead of yylval.t when
        returning SCALAR.
        * gengtype-yacc.y: Type of SCALAR is string.  Call
        create_scalar_type from type:SCALAR rule.  Adjust for removal of
        second argument to create_scalar_type.

        * vec.h: Remove all #if IN_GENGTYPE blocks.
        Add comment saying that changes may require adjustments to gengtype.
        * gengtype.c: Don't include coretypes.h or tm.h.
        Add comment to inclusion of errors.h.
        (note_def_vec, note_def_vec_alloc): New functions.
        * gengtype.h: Declare new functions.
        * gengtype-lex.l: Don't include coretypes.h.
        (YY_INPUT, macro_input, push_macro_expansion, mangle_macro_name):
        Delete.
        (update_lineno): Remove unnecessary prototype.
        (DEF_VEC_* rules): Simplify using note_def_vec / note_def_vec_alloc.
        (VEC rule): Just return VEC_TOKEN.
        * gengtype-yacc.y (VEC_TOKEN): New token type.
        (type): Add a production for VEC(a,b).
        * Makefile.in: Update dependencies.

        * gengtype-lex.l: Remove rules for parsing pointer-to-function
        typedefs that use the old PARAMS macro.

        * gengtype-lex.l: Remove all rules and states relating to yacc
        input files.
        * gengtype-yacc.y: Similarly.
        * gengtype.c (note_yacc_type): Delete function.
        * gengtype.h: Update prototypes.

2007-03-26  Joseph Myers  <joseph@codesourcery.com>

        * tree-pretty-print.c (dump_generic_node): Report precision of
        unnamed integer types.

2007-03-26  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (noce_try_store_flag_constants): Don't check
        no_new_pseudos here.
        (noce_try_store_flag_constants): Don't check no_new_pseudos.
        (noce_try_addcc, noce_try_store_flag_mask, noce_try_cmove_arith,
        noce_try_cmove_arith, noce_try_minmax, noce_try_abs,
        noce_try_sign_mask): Likewise.
        (if_convert): Check no_new_pseudos here.

        (cond_exec_process_if_block, noce_process_if_block, find_if_block):
        Remove prototypes.
        (struct noce_if_info): Add then_bb, else_bb, join_bb members.
        (noce_get_condition): Handle new then_else_reversed argument.
        (noce_init_if_info): Remove, fold into noce_find_if_block.
        (noce_process_if_block): Take a struct noce_if_info as the
        argument.  Don't set up one based on ce_if_info.  Update pointer
        references accordingly.
        (cond_move_process_if_block): Likewise.
        (process_if_block): Removed.
        (find_if_block): Removed.  Move functionality two new functions,
        noce_find_if_block and cond_exec_find_if_block.
        (noce_find_if_block): New function.  Be aware of IF-THEN-JOIN
        blocks and the symmetric IF-ELSE-JOIN case.
        (cond_exec_find_if_block): Also new function mostly based on old
        find_if_block and process_if_block.
        (find_if_header): Replace find_if_block call with separately
        guarded calls to noce_find_if_block and cond_exec_find_if_block.
        (find_cond_trap): Update noce_get_condition call.
        (dead_or_predicable): Likewise.

2007-03-26  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (IX86_BUILTIN_CMPNEPD, IX86_BUILTIN_CMPNESD):
        Remove.
        (IX86_BUILTIN_PSLLW128, IX86_BUILTIN_PSLLD128, IX86_BUILTIN_PSLLQ128,
        IX86_BUILTIN_PSRAW128, IX86_BUILTIN_PSRAD128, IX86_BUILTIN_PSRLW128,
        IX86_BUILTIN_PSRLD128, IX86_BUILTIN_PSRLQ128): Remove.
        (ix86_init_mmx_sse_builtins): Remove v8hi_ftype_v8hi_v2di and
        v4si_ftype_v4si_v2di.  Remove __builtin_ia32_psllw128,
        __builtin_ia32_pslld128, __builtin_ia32_psllq128,
        __builtin_ia32_psrlw128, __builtin_ia32_psrld128,
        __builtin_ia32_psrlq128, __builtin_ia32_psraw128 and
        __builtin_ia32_psrad128 builtins.

2007-03-26  Uros Bizjak  <ubizjak@gmail.com>

        * reg-stack.c (replace_reg): Use IN_RANGE macro in gcc_assert().
        * config/i386/constraints.md
        (define_constraint "I"): Use IN_RANGE macro.
        (define_constraint "J"): Ditto.
        (define_constraint "K"): Ditto.
        (define_constraint "M"): Ditto.
        (define_constraint "N"): Ditto.
        (define_constraint "O"): Ditto.
        * config/i386/predicates.md
        (define_predicate "register_no_elim_operand"): Use IN_RANGE macro.
        (define_predicate "const_0_to_3_operand"): Ditto.
        (define_predicate "const_0_to_7_operand"): Ditto.
        (define_predicate "const_0_to_15_operand"): Ditto.
        (define_predicate "const_0_to_63_operand"): Ditto.
        (define_predicate "const_0_to_255_operand"): Ditto.
        (define_predicate "const_1_to_31_operand"): Ditto.
        (define_predicate "const_2_to_3_operand"): Ditto.
        (define_predicate "const_4_to_7_operand"): Ditto.

2007-03-25  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/rs6000.c (rs6000_emit_prologue): Always clobber LR
        in SImode for save_world.
        * config/rs6000/altivec.md (save_world, restore_world): Convert to
        LR hard reg.

2007-03-25  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30784
        * fold-const.c (fold_ternary): Handle CONSTRUCTOR in case
        BIT_FIELD_REF.

2007-03-25  Revital Eres  <eres@il.ibm.com>

        * tree-if-conv.c (if_convertible_gimple_modify_stmt_p):
          Fold movement_possibility function into it.

2007-03-25  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin.md (load_macho_picbase): Ignore operand 0.
        (load_macho_picbase_{si,di}): Convert to LR hard reg.
        (call_indirect_nonlocal_darwin64): Same.
        (call_nonlocal_darwin64): Same.
        (call_value_indirect_nonlocal_darwin64): Same.
        (call_value_nonlocal_darwin64): Same.
        (sibcall_nonlocal_darwin64): Same.
        (sibcall_value_nonlocal_darwin64): Same.
        (sibcall_symbolic_64): Same.
        (sibcall_value_symbolic_64): Same.
        * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Remove
        LR pseudo.
        (rs6000_emit_load_toc_table): Same.
        * config/rs6000/altivec.md (restore_world): Convert to LR hard reg.
        * config/rs6000/rs6000.md (mulh_call): Convert to LR hard reg.
        (mull_call): Same.
        (divss_call): Same.
        (divus_call): Same.
        (quoss_call): Same.
        (quous_call): Same.
        (load_toc_v4_pic_si): Same
        (load_toc_v4_PIC_1): Same.
        (load_toc_v4_PIC_1b): Same.
        (call_indirect_aix{32,64}): Same.
        (call_value_indirect_aix{32,64}): Same.
        (call): Same.
        (call_value): Same.
        (call_local{32,64}): Same.
        (call_value_local{32,64}): Same.
        (call_indirect_nonlocal_aix{32,64}): Same.
        (call_nonlocal_aix{32,64}): Same.
        (call_value_indirect_nonlocal_aix{32,64}): Same.
        (call_value_nonlocal_aix{32,64}): Same.
        (call_indirect_nonlocal_sysv<mode>): Same.
        (call_nonlocal_sysv<mode>): Same.
        (call_value_indirect_nonlocal_sysv<mode>): Same.
        (call_value_nonlocal_sysv<mode>): Same.
        (sibcall): Same.
        (sibcall_local{32,64}): Same.
        (sibcall_value_local{32,64}): Same.
        (sibcall_nonlocal_aix{32,64}): Same.
        (sibcall_value_nonlocal_aix{32,64}): Same.
        (sibcall_nonlocal_sysv<mode>): Same.
        (sibcall_value): Same.
        (sibcall_value_nonlocal_sysv<mode>): Same.

2007-03-24  Paul Brook  <paul@codesourcery.com>

        * config/arm/lib1funcs.asm (div0): Use ARM_FUNC_START and do_push.
        * config/arm/linux-eabi.h: Remove legacy syscall hack.

2007-03-24  Richard Henderson  <rth@redhat.com>

        * config/ia64/constraints.md: New file.
        * config/ia64/predicates.md: Replace CONST_OK_FOR_? with
        satisfies_constraint_?.
        * config/ia64/ia64.c (ia64_move_ok, ia64_legitimate_constant_p,
        ia64_reload_gp, spill_restore_mem, ia64_expand_prologue,
        ia64_expand_epilogue, ia64_split_return_addr_rtx, ia64_rtx_costs,
        ia64_output_mi_thunk): Likewise.
        (ia64_const_ok_for_letter_p): Remove.
        (ia64_const_double_ok_for_letter_p): Remove.
        (ia64_extra_constraint): Remove.
        * config/ia64/ia64.h (REG_CLASS_FROM_LETTER): Remove.
        (CONST_OK_FOR_I, CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L,
        CONST_OK_FOR_M, CONST_OK_FOR_N, CONST_OK_FOR_O, CONST_OK_FOR_P,
        CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_G,
        CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT,
        EXTRA_MEMORY_CONSTRAINT): Remove.
        * config/ia64/ia64.md: Include constriants.md.  Replace
        CONST_OK_FOR_? with satisfies_constraint_?.

2007-03-23  Michael Meissner  <michael.meissner@amd.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        * config/dfp-bit.h (DPD_BID_NAME): New macro to give either the
        DPD or BID name.
        (name macros): Use DPD_BID_NAME to convert names properly.

        * optabs.c (DECIMAL_PREFIX): Prefix string to use for the current
        decimal floating point format.
        (init_floating_libfuncs): Change decimal functions so that they
        have a "bid_" prefix if the decimal system uses the BID format,
        and "dpd_" prefix if the decimal system uses the DPD format.
        (init_interclass_conv_libfuncs): Ditto.
        (init_intraclass_conv_libfuncs): Ditto.

        * config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
        using the BID format.

        * configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
        whether we are using the BID decimal format.
        * configure: Regenerate.

        * c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
        the compiler has decimal floating point enabled.  Define
        __DECIMAL_BID_FORMAT__ if BID decimal floating point is used
        instead of DPD.

        * config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
        using the BID format.

        * configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
        whether we are using the BID decimal format.
        * configure: Regenerate.

        * c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
        the compiler has decimal floating point enabled.  Define
        __DECIMAL_BID_FORMAT__ if BID decimal floating point is used
        instead of DPD.

        * doc/install.texi (--enable-decimal-float): Document BID and DPD
        options, and that it is enabled for i386/x86_64 systems.

        * Makefile.in (enable_decimal_float): New.
        (DECNUMFMT): New.
        (DECNUMINC): Add  -I$(DECNUMFMT).
        (DECNUM_H): Mov decimal32.h, decimal64.h and decimal128.h
        to $(DECNUMFMT) from $(DECNUM).

        * configure.ac: Support * --enable-decimal-float={no,yes,bid,dpd}.
        Substitute enable_decimal_float.
        * configure: Regenerated.

        PR other/30529
        * config/dfp-bit.c (__dec_byte_swap): Use uint32_t instead of
        unsigned long.

        * configure.ac: Enable decimal float for x86_64-*-linux*.
        * configure: Regenerated.

        PR other/30530
        * dfp.c (decimal_real_arithmetic): Use decimal128FlipSign and
        decimal128ClearSign to flip and clear the sign bit in decimal128.
        (decimal_real_maxval): Set decimal128SetSign to set the sign
        bit in decimal128.

2007-03-23  Ian Lance Taylor  <iant@google.com>

        * fold-const.c (fold_binary): Correct warning for X - c >= X.

2007-03-23  Ian Lance Taylor  <iant@google.com>

        * tree-dump.c (dump_files): Correct comment.

2007-03-23  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (operand_less_p): Ignore fold overflow warnings.

2007-03-23  Steven Bosscher  <steven@gcc.gnu.org>

        * tracer.c (tracer): Don't take FLAGS argument.  Assert we are
        in cfglayout mode.  Don't go into and out of cfglayout mode.
        Link the blocks in the order of the constructed traces.
        (rest_of_handle_tracer): Adjust call to tracer.
        * loop-init.c (rtl_loop_init): Assert we are in cfglayout mode.
        Don't go into cfglayout mode.
        (rtl_loop_done): Don't go out of cfglayout mode.
        * cfglayout.c (relink_block_chain): New function, split out from...
        (fixup_reorder_chain): ...here.  Remove redundant checking.
        (cfg_layout_finalize): Don't clear the header, footer, and aux
        fields here, move the code to do so to relink_block_chain.  Likewise
        for free_original_copy_tables.
        * rtl.h (tracer): Update prototype.
        * bb-reorder.c (reorder_basic_blocks): Don't take FLAGS argument.
        Assert we are in cfglayout mode.  Don't go into and out of cfglayout
        mode.  Use relink_block_chain to serialize the CFG according to the
        new basic block order.  Move targetm.cannot_modify_jumps_p check from
        here...
        (gate_handle_reorder_blocks): ...to here.
        (duplicate_computed_gotos): Move targetm.cannot_modify_jumps_p check
        from here...
        (gate_duplicate_computed_gotos): ...to here.
        (rest_of_handle_reorder_blocks): Don't see if anything has changed,
        something always changes when going into and out of cfglayout mode.
        Perform an expensive cfg cleanup while going into cfglayout mode.
        Always update liveness information on HAVE_conditional_execution
        targets.  Reserialize the basic blocks and go out of cfglayout mode.
        * reg-stack.c: Include cfglayout.h.
        (rest_of_handle_stack_regs): Go into and out of cfglayout mode around
        the call to reorder_basic_blocks.
        * basic-block.h (reorder_basic_blocks): Update prototype.
        (relink_block_chain): New prototype.
        * passes.c (pass_outof_cfg_layout_mode): Move after cse2.

2007-03-23  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.md (type, hazard, *movdi_32bit,
        *movdi_gp32_fp64, *movdi_64bit, *movsi_internal, movcc,
        *movhi_internal, *movqi_internal, *movsf_hardfloat,
        *movdf_hardfloat_64bit, *movdf_hardfloat_32bit, *movdf_softfloat,
        movv2sf_hardfloat_64bit, load_df_low, load_df_high, store_df_high,
        mthc1, mfhc1): Change xfer instruction type to mfc and mtc, as
        applicable.
        (movcc): Change first xfer to multi.
        * config/mips/24k.md, config/mips/4100.md, config/mips/4300.md,
        config/mips/5000.md, config/mips/5400.md, config/mips/5500.md,
        config/mips/5k.md, config/mips/7000.md, config/mips/9000.md,
        config/mips/generic.md: Change reservations using "xfer" to use
        "mfc,mtc".
        * config/mips/sb1.md (ir_sb1_mtxfer): Use "mtc" instead of
        using match_operand.
        (ir_sb1_mfxfer): Use "mfc" instead of using match_operand.
        * config/mips/sr71k.md (ir_sr70_xfer_from): Use "mfc" instead of
        examining mode.
        (ir_sr70_xfer_to): Use "mtc" instead of examining mode.

2007-03-22  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c: Remove unnecessary function declarations.
        Move targetm definition, and all related macros, to the end of
        the file.  Resort some functions to put definitions before uses.
        (ix86_attribute_table): Make static.  Move to end of file.
        (ix86_gimplify_va_arg): Make static.

2007-03-22  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_function_regparm): Early exit for 64-bit;
        don't increase local_regparm with force_align_arg_pointer check.
        (ix86_function_sseregparm): Assert 32-bit.
        (type_has_variadic_args_p): New.
        (ix86_return_pops_args): Early exit for 64-bit.  Reindent; use
        type_has_variadic_args_p.
        (ix86_function_arg_regno_p): Use == 0 instead of ! test for eax.
        (init_cumulative_args): Remove TARGET_DEBUG_ARG.  Remove zero_cum;
        use memset instead.  Do maybe_vaarg check first; skip attribute
        tests if true; skip attribute tests for 64-bit.
        (construct_container): Remove TARGET_DEBUG_ARG.
        (function_arg_advance_32, function_arg_advance_64): Split out ...
        (function_arg_advance): ... from here.
        (function_arg_32, function_arg_64): Split out ...
        (function_arg): ... from here.
        (ix86_pass_by_reference): Tidy.
        (ix86_function_value_regno_p): Rearrange w/ switch on regno.
        (function_value_32): New, from parts of ix86_function_value
        and ix86_value_regno.
        (function_value_64): New, from parts of ix86_function_value
        and ix86_libcall_value.
        (ix86_function_value_1): New.
        (ix86_function_value, ix86_libcall_value): Use it.
        (return_in_memory_32, return_in_memory_64): Split out ...
        (ix86_return_in_memory): ... from here.
        (ix86_struct_value_rtx): Skip for 64-bit.
        (ix86_libcall_value, ix86_value_regno): Remove.
        (setup_incoming_varargs_64): Split out ...
        (ix86_setup_incoming_varargs): ... from here.
        (ix86_va_start): Remove TARGET_DEBUG_ARG.
        (legitimate_address_p, legitimize_address): Remove TARGET_DEBUG_ADDR.
        * config/i386/i386-protos.h (ix86_function_value): Remove.
        * config/i386/i386.opt (TARGET_DEBUG_ADDR, TARGET_DEBUG_ARG): Remove.

2007-03-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR other/23572
        * c-lex.c (interpret_float): On overflow, emit pedantic warning if
        infinities not supported, otherwise emit warning if -Woverflow. On
        underflow, emit warning if -Woverflow.
        * real.c (real_from_string): Return -1 if underflow, +1 if overflow
        and 0 otherwise.
        * real.h (real_from_string): Update declaration

2007-03-22  Kai Tietz  <kai.tietz@onevision.com>
            Richard Henderson  <rth@redhat.com>

        * defaults.h (OUTGOING_REG_PARM_STACK_SPACE): Provide default.
        * calls.c (compute_argument_block_size, expand_call,
        emit_library_call_value_1): Don't ifdef OUTGOING_REG_PARM_STACK_SPACE.
        * expr.c (block_move_libcall_safe_for_call_parm): Likewise.
        * function.c (STACK_DYNAMIC_OFFSET): Likewise.
        * doc/tm.texi (OUTGOING_REG_PARM_STACK_SPACE): Update.
        * config/alpha/unicosmk.h, config/bfin/bfin.h, config/iq2000/iq2000.h,
        config/mips/mips.h, config/mn10300/mn10300.h, config/mt/mt.h,
        config/pa/pa.h, config/rs6000/rs6000.h, config/score/score.h,
        config/spu/spu.h, config/v850/v850.h (OUTGOING_REG_PARM_STACK_SPACE):
        Set to 1.

2007-03-22  Joseph Myers  <joseph@codesourcery.com>

        * c-incpath.c (add_sysroot_to_chain): New.
        (merge_include_chains): Add sysroot argument.  Call
        add_sysroot_to_chain if sysrooted.
        (register_include_chains): Update call to merge_include_chains.
        * doc/cppopts.texi: Document use of '=' in include directory
        arguments.

2007-03-22  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cmp<mode>): Rename from cmpsf and cmpdf.
        Macroize expander using SSEMODEF mode macro.  Use SSE_FLOAT_MODE_P.
        (*cmpfp_<mode>): Rename from *cmpfp_sf and *cmpfp_df. Macroize
        insn pattern using X87MODEF12 mode macro.

2007-03-21  Seongbae Park <seongbae.park@gmail.com>

        * regmove.c (regmove_optimize): Use reg_mentioned_p
        instead of reg_overlap_mentioned_p for DST.

2007-03-21  Mike Stump  <mrs@apple.com>

        * c.opt: Fixup for Objective-C/C++.

2007-03-21  Steve Ellcey  <sje@cup.hp.com>

        * explow.c (convert_memory_address): Fold memory reference when
        POINTERS_EXTEND_UNSIGNED < 0

2007-03-21  Richard Henderson  <rth@redhat.com>

        PR target/31245
        * config/i386/emmintrin.h (__m128i, __m128d): Mark may_alias.
        * config/i386/mmintrin.h (__m64): Likewise.
        * config/i386/xmmintrin.h (__m128): Likewise.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_ADDITIONAL_CPP_SPEC): Remove -D options.
        (VXWORKS_OS_CPP_BUILTINS): Define.
        * config/i386/vxworks.h (VXWORKS_CPU_DEFINE): Fold into...
        (TARGET_OS_CPP_BUILTINS): ...here.  Use VXWORKS_OS_CPP_BUILTINS.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * rtl.h (constant_pool_reference_p): Delete.
        (find_constant_src): Declare.
        * rtlanal.c (find_constant_src): New function.
        * simplify-rtx.c (constant_pool_reference_p): Delete.
        * config/i386/i386.md: Use find_constant_src instead of
        constant_pool_reference_p/avoid_constant_pool_reference pairs.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi (-fpie, -fPIE): Document __pie__ and __PIE__.
        * c-cppbuiltin.c (c_cpp_builtins): Define them.

2007-03-20  Mark Mitchell  <mark@codesourcery.com>

        * config/arm/elf.h (TARGET_ASM_DESTRUCTOR): Define.
        * config/arm/arm.c (arm_elf_asm_cdtor): New function.
        (arm_elf_asm_constructor): Use it.
        (arm_elf_asm_destructor): New function.

2007-03-20  Bernd Schmidt  <bernd.schmidt@analog.com>

        * jump.c (mark_jump_label): Treat SEQUENCE specially.

2007-03-20  Nathan Sidwell  <nathan@codesourcery.com>

        * config/vxlib.c (tls_delete_hook): Use TCB for kernel tasks.

2007-03-19  Andrew Haley  <aph@redhat.com>

        PR tree-optimization/31264
        * tree-vrp.c (register_edge_assert_for_1): Don't look though
        VIEW_CONVERT_EXPRs.

2007-03-19  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/30907
        * fwprop.c (forward_propagate_into): Never propagate inside a loop.
        (fwprop_init): Always call loop_optimizer_initialize.
        (fwprop_done): Always call loop_optimizer_finalize.
        (fwprop): We always have loop info now.
        (gate_fwprop_addr): Remove.
        (pass_fwprop_addr): Use gate_fwprop as gate.

        PR rtl-optimization/30841
        * df-problems.c (df_ru_local_compute, df_rd_local_compute,
        df_chain_alloc): Call df_reorganize_refs unconditionally.
        * df-scan.c (df_rescan_blocks, df_reorganize_refs): Change
        refs_organized to refs_organized_size.
        (df_ref_create_structure): Use refs_organized_size instead of
        bitmap_size if refs had been organized, and keep refs_organized_size
        up-to-date.
        * df.h (struct df_ref_info): Change refs_organized to
        refs_organized_size.
        (DF_DEFS_SIZE, DF_USES_SIZE): Use refs_organized_size instead of
        bitmap_size.

2007-03-19  Mark Mitchell  <mark@codesourcery.com>

        * except.c (output_function_exception_table): Do not reference the
        EH personality routine for functions that do not require an
        exception table.

2007-03-20  Jakub Jelinek  <jakub@redhat.com>

        PR c/30762
        * c-typeck.c (convert_for_assignment): Call comptypes for
        RECORD_TYPE or UNION_TYPE.

        PR inline-asm/30505
        * reload1.c (reload): Do invalid ASM checking after
        cleanup_subreg_operands.

2007-03-19  Jeff Law  <law@redhat.com>

        * tree-cfg.c (find_taken_edge): Tighten conditions for
        optimizing computed gotos.

2007-03-19  Michael Matz  <matz@suse.de>

        * builtins.c (expand_builtin_sync_operation,
        expand_builtin_compare_and_swap,
        expand_builtin_lock_test_and_set): Care for extending CONST_INTs
        correctly.

        * config/i386/sync.md (sync_double_compare_and_swapdi_pic,
        sync_double_compare_and_swap_ccdi_pic): Use "SD" as constraint
        for operand 3.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * doc/tm.texi: Add brackets around the return type of
        TARGET_SECONDARY_RELOAD.

2007-03-19  Andrew Pinski  <andrew_pinski@playstation.sony.com>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31254
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
        Use handled_component_p () where appropriate.  Continue
        propagating into the rhs if we propagated into an INDIRECT_REF
        on the lhs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (op_type attribute): RRR instruction type added.
        (FP, DFP, SD_SF, DD_DF, TD_TF): New mode macros.
        (xde, xdee): Mode attributes adjusted to support DFP modes.
        (RRer, f0, op1, Rf, bt, bfp, HALF_TMODE): New mode attributes added.
        ("cmp<mode>", "*cmp<mode>_css_0", "*cmp<mode>_ccs", TF move splitters,
        DF move splitters, "floatdi<mode>2", "add<mode>3", "*add<mode>3",
        "*add<mode>3_cc", "*add<mode>3_cconly", "sub<mode>3", "*sub<mode>3",
        "*sub<mode>3_cc", "*sub<mode>3_cconly", "mul<mode>3", "*mul<mode>3",
        "div<mode>3", "*div<mode>3", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
        "*negabs<mode>2_nocc", "copysign<mode>3"): Adjusted to support DFP
        numbers.
        ("*movtf_64", "*movtf_31", "*movdf_64dfp", "*movdf_64", "*movdf_31",
        "movsf"): Insn definitions removed.
        ("*mov<mode>_64", "*mov<mode>_31", "mov<mode>", "*mov<mode>_64dfp",
        "*mov<mode>_64", "*mov<mode>_31", "fix_trunc<DFP:mode>di2",
        "trunctddd2", "truncddsd2", "extendddtd2", "extendsddd2"): Insn
        definitions added.
        ("fixuns_truncdddi2", "fixuns_trunctddi2", "mov<mode>",
        "reload_in<mode>", "reload_out<mode>"): Expander added.
        ("movtf", "movdf", "reload_outtf", "reload_outdf", "reload_intf"):
        Expander removed.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md: Only non-functional changes.  Renamed
        FPR mode macro to BFP all over the file.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.md (UNSPEC_COPYSIGN): New constant.
        (op_type attribute): RRF instruction type added.
        (fT0): New mode attribute.
        ("*movdi_64dfp", "*movdf_64dfp", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
        "*negabs<mode>2_nocc", "copysign<mode>3"): Insn definitions added.
        * config/s390/s390.h (SECONDARY_MEMORY_NEEDED): Due to a new instruction
        no secondary memory is needed when moving DFmode values between GPRs
        and FPRs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.opt ("mhard-float", "msoft-float"): Bit value
        inverted and documentation adjusted.
        ("mhard-dfp", "msoft-dfp"): New options.
        * config/s390/s390.c (s390_handle_arch_option): New architecture
        switch: z9-ec.
        (override_options): Sanity checks for the new options added.
        * config.gcc: New architecture switch: z9-ec.
        * config/s390/s390.h (processor_flags): PF_DFP added.
        (TARGET_CPU_DFP, TARGET_DFP): Macro definitions added.
        (TARGET_DEFAULT): Due to the s390.opt changes hard float is enabled
        when the bit is NOT set so remove it from the defaults.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * genemit.c (main): Print include statement for dfp.h.
        * dfp.h (decimal_real_arithmetic): Hide prototype if tree_code enum
        is not available.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/t-elfmulti (EXTRA_MULTILIB_PARTS): Do not define here.

2007-03-19  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/31022
        * config/sh/sh.c (sh_adjust_cost): Use the result of single_set
        instead of PATTERN.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (output_deferred_plabels, output_bb, output_millicode_call,
        attr_length_call, output_call, output_indirect_call): Cleanup
        formatting of targetm calls.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

        * config/cris/cris.h (HANDLE_PRAGMA_PACK_PUSH_POP): Define to 1.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: Add fpstore_load and store_fpload instruction types.  Provide
        reservation, bypass and anti-bypass descriptions for these instructions.
        Update move patterns.
        * pa.c (hppa_fpstore_bypass_p): Check for both TYPE_FPSTORE_LOAD and
        TYPE_FPSTORE.

2007-03-18  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-transform.c (get_initial_def_for_induction): Replace
        GET_MODE_NUNITS with TYPE_VECTOR_SUBPARTS.
        (get_initial_def_for_reduction): Likewise.

2007-03-16  Daniel Berlin  <dberlin@dberlin.org>

        Fix PR tree-optimization/29922
        * tree-ssa-pre.c (bb_bitmap_sets): Remove RVUSE_* members.
        (get_representative): Removed.
        (value_dies_in_block_x): Update for rvuse removal.
        (valid_in_sets): Update for renaming of vuses_dies_in_block_x.
        (compute_antic_aux): Handle when PHI nodes appear in
        non-single-successors.
        (dump_bitmap_of_names): Removed.
        (compute_antic_safe): Renamed and removed rvuse calculation.
        Calculate only antic safe.
        (insert_into_preds_of_block): Remove assert.
        (execute_pre): Update for renamed functions.
        (defer_or_phi_translate_block): New function.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/arm.c, config/arm/thumb2.md, config/m68k/m68k.c,
        config/spu/spu.c, omega.h, passes.c, predict.c: Fix comment
        typos.
        * doc/cpp.texi, doc/extend.texi, doc/invoke.texi: Fix typos.
        Follow spelling conventions.

        * tree-data-ref.h: Remove the prototype for analyze_array.

2007-03-17  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/31041
        * tree-vect-transform.c (get_initial_def_for_induction): Call
        force_gimple_operand.

2007-03-17  Olga Golovanevsky  <olga@il.ibm.com>

        * ipa-type-escape.c (look_for_casts) : Revert code to use
        handled_component_p due to ada test a-numaux.adb.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

        * final.c (final_scan_insn): Alter the condition of a
        conditional trap if we have nonstandard CC.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Remove excess quoting from asm line 0 test.
        * configure: Rebuilt.

2007-03-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (-Wconversion): Document warnings specific to C++.
        * c-common.c (convert_and_check): Move warning logic to...
        (warnings_for_convert_and_check): ...here. Define.
        * c-common.h (warnings_for_convert_and_check): Declare.

2007-03-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (attr_length_call): Partially revert change of 2007-03-09.
        (output_call): Likewise.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (SUPPORTS_INIT_PRIORITY): Define.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

        * config/vx-common.h (WINT_TYPE, WINT_TYPE_SIZE): Define.

2007-03-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Add PTA_NO_SAHF to k8,
        opteron, athlon-64 and athlon-fx processor_alias_table entries.

2007-03-16  Sebastian Pop  <sebastian.pop@inria.fr>

        PR tree-optimization/31183
        * tree-loop-linear.c (gather_interchange_stats, try_interchange_loops):
        Use double_int instead of unsigned int for representing access_strides.
        * testsuite/gcc.dg/tree-ssa/pr31183.c: New.

2007-03-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31146
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Restructure
        to allow recursion of forward_propagate_addr_expr.
        (forward_propagate_addr_into_variable_array_index): Likewise.
        (forward_propagate_addr_expr): Likewise.
        (tree_ssa_forward_propagate_single_use_vars): Likewise.
        (forward_propagate_addr_expr_1): Recurse on simple copies
        instead of propagating into them.  Do so for useless conversions
        as well.
        (forward_propagate_addr_expr): Clean up unused statements after
        recursion.

2007-03-16  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Use the right argument
        for the expansion via cexp.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Don't require ELF binutils to tolerate # 0 "".
        * configure: Rebuilt.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/29906
        * dwarf2out.c (force_type_die): Adjust comment.
        (dwarf2out_imported_module_or_decl): Handle base AT_import types.

2007-03-15  DJ Delorie  <dj@redhat.com>

        * config/frv/predicates.md (minmax_operator): Don't check operands
        here.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (record_estimate): Add "upper" argument.
        Update constant estimates of number of iterations.
        (record_nonwrapping_iv): Add "upper" argument.  "data_size_bounds_p"
        argument renamed to "realistic".
        (compute_estimated_nb_iterations): Removed.
        (record_niter_bound): New function.
        (idx_infer_loop_bounds): For possible but unlikely tail arrays,
        call record_nonwrapping_iv with upper = false.
        (infer_loop_bounds_from_signedness): Pass upper argument to
        record_nonwrapping_iv.
        (estimate_numbers_of_iterations_loop): Do not call
        compute_estimated_nb_iterations.  Record estimate based on profile
        information.  Initialize the constant estimates of number of
        iterations.
        * tree-data-ref.c (estimated_loop_iterations): Return the recorded
        estimates.
        * tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Add dump when
        number of iterations is too small.
        * cfgloop.h (struct nb_iter_bound): Remove "realistic" field.
        (EST_NOT_AVAILABLE): Removed.
        (struct loop): Replace estimated_nb_iterations by any_upper_bound,
        nb_iterations_upper_bound, any_estimate and nb_iterations_estimate
        fields.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (refine_bounds_using_guard, bound_difference):
        Handle NE_EXPR guards.

2007-03-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24924
        * c-opts.c (c_common_post_options): Handle C++ post-processing here.
        Set also -pedantic-errors by default for the  preprocessor unless
        -fpermissive is given.

2007-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/29719
        PR middle-end/31161
        * builtins.c (expand_builtin_cexpi): As a fallback if we
        don't have builtins for sincos or cexp create a function
        declaration for cexp and expand to a call to that.
        (expand_builtin_int_roundingfn): Always fall
        back to floor/ceil and its variants even if they may be
        not available.

2007-03-15  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/31159
        * cfglayout.c (fixup_reorder_chain): Postpone deleting dead
        jump tables, move the call to delete_dead_jumptables from here...
        (cfg_layout_finalize): ...to here.  But rebuild jump labels first.
        * cfgrtl.c (cfg_layout_can_merge_blocks_p): When not optimizing,
        don't allow merging of blocks that try_redirect_by_replacing_jump
        also does not handle when not optimizing.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>
            Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        * config/i386/i386.md (x86_sahf_1): Correctly handle
        HAVE_AS_IX86_SAHF.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31167
        * config/i386/i386.md (*addti3_1, *addti3_1 splitter): Use
        x86_64_general_operand as operand[2] predicate.  Remove "iF"
        from operand constraints and use "e" constraint instead.
        (*subti3_1, *subti3_1 splitter): Ditto.
        (*negti2_1, *negti2_1 splitter): Use nonimmediate_operand as
        operand[1] predicate.

2007-03-14  Sebastian Pop  <sebastian.pop@inria.fr>

        * tree-loop-linear.c (gather_interchange_stats): For multidimensional
        arrays, multiply the access strides by the size of the sub-array.
        * testsuite/gcc.dg/tree-ssa/ltrans-5.c: New.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * configure.ac (HAVE_AS_IX86_SAHF): On x86 targets check whether
        the configured assembler supports the sahf mnemonic.
        * configure: Regenerate.
        * config.in: Regenerate.

        * config/i386/i386.md (x86_sahf_1): Depending on HAVE_AS_IX86_SAHF,
        emit "sahf" or ".byte\t0x9e" as asm template.

2007-03-14  Michael Meissner  <michael.meissner@amd.com>

        PR 31018
        * config/i386/i386.h (X86_TUNE_SHORTEN_X87_SSE): New tuning
        option to replace hard coded TARGET_xxx in md file.
        (X86_TUNE_AVOID_VECTOR_DECODE): Ditto.
        (X86_TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
        (X86_TUNE_SLOW_IMUL_IMM8): Ditto.
        (X86_TUNE_MOVE_M1_VIA_OR): Ditto.
        (X86_TUNE_NOT_UNPAIRABLE): Ditto.
        (X86_TUNE_NOT_VECTORMODE): Ditto.
        (TUNE_SHORTEN_X87_SSE): Use new tuning option.
        (TUNE_AVOID_VECTOR_DECODE): Ditto.
        (TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
        (TUNE_SLOW_IMUL_IMM8): Ditto.
        (TUNE_MOVE_M1_VIA_OR): Ditto.
        (TUNE_NOT_UNPAIRABLE): Ditto.
        (TUNE_NOT_VECTORMODE): Ditto.

        * config/i386/i386.c (ix86_tune_features): Fill in new tuning
        options.

        * config/i386/i386.md (fix_trunc?f?1_sse peephole2): Use new
        tuning options instead of hard coded TARGET_xxx.
        (fix ssemode peephole2's): Ditto.
        (imul peephole2's): Ditto.
        (movsi_or): Ditto.
        (movdi_or_rex64): Ditto.
        (move peephole2): Ditto.
        (not peephole2's): Ditto.

2007-03-14  Dirk Mueller  <dmueller@suse.de>

        * c-common.h (empty_body_warning): Rename to empty_if_body_warning.
        * c-common.c (empty_if_body_warning): Rephrase diagnostic message.
        * c-parser.c (c_parser_if_body): Always add an empty statement in case
        of empty body.
        * c-parser.c (c_parser_do_statement): Warn about empty body in
        do/while statement.
        * c-typeck (c_finish_if_stmt): Call empty_if_body_warning.
        * doc/invoke.texi (-Wempty-body): Update documentation.

2007-03-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/21438
        * c-common.h (warn_for_div_by_zero): Declare.
        * c-common.c (warn_for_div_by_zero): Define.
        * c-typeck.c (build_binary_op): Call warn_for_div_zero instead of
        warning.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (PREPROCESSOR_DEFINES): Add directory terminators
        to PREFIX and STANDARD_PREFIX.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>
            Phil Edwards  <phil@codesourcery.com>

        * gthr-vxworks.h: Add an extern "C" wrapper for C++.
        (__gthread_once_t): Remove busy field for RTPs.
        (__GTHREAD_ONCE_INIT): Update accordingly.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document VxWorks options.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * doc/invoke.texi (i386 and x86-64 Options): Clarify -msahf option.

2007-03-13  Seongbae Park <seongbae.park@gmail.com>

        PR tree-optimization/30590
        * tree-nrv.c (tree_nrv): Check for the partial update of the
        return value.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

        * flags.h (flag_random_seed): Remove declaration, in favor of...
        * toplev.h (get_random_seed, set_random_seed): ... these.
        * tree.c (get_file_function_name): Use the former.
        * opts.c (common_handle_option): Use the latter.
        * toplev.c

2007-03-13  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/31127
        * cse.c (cse_find_path): Do not bail out if a basic block that
        we already visited now becomes part of a path that starts at a
        different basic block.  Just disallow this, to make sure we
        visit each basic block at most once.

2007-03-13  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes,
        when profile esitmate is present, calls with very low frequency are
        cold.

2007-03-13  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30730
        PR tree-optimization/26900
        * tree-ssa-loop-niter.c: Include gmp.h.
        (bounds): New type.
        (mpz_set_double_int, get_type_bounds, mpz_to_double_int,
        split_to_var_and_offset, determine_value_range,
        bound_difference_of_offsetted_base, refine_bounds_using_guard,
        bound_difference, bounds_add, bounds_negate,
        number_of_iterations_ne_max, dump_affine_iv): New functions.
        (number_of_iterations_ne, number_of_iterations_lt_to_ne,
        assert_loop_rolls_lt, assert_loop_rolls_le): Use bounds on the
        difference of initial and final value of control iv to validate
        results.
        (number_of_iterations_cond): Add loop parameter.  Determine bounds
        on the difference of the extremes of the control iv.  Add dumps.
        (expand_simple_operations): Handle phi nodes.
        (simplify_using_initial_conditions): Do not record used conditions.
        (number_of_iterations_exit): Pass loop to number_of_iterations_cond.
        Do not set additional_info.
        (implies_nonnegative_p, implies_ge_p): Removed.
        (derive_constant_upper_bound): Do not use parameter `additional'.
        (record_estimate): Parameter `additional' removed.  Parameter
        `i_bound' added.  Do not call derive_constant_upper_bound.
        (record_nonwrapping_iv): Use derive_constant_upper_bound to
        bound the number of iterations estimate.
        (estimate_numbers_of_iterations_loop): Pass the estimate from
        the number of iterations analysis to record_estimate.
        * tree.h (multiple_of_p): Declare.
        * tree-scalar-evolution.c (expression_expensive_p): Removed.
        (scev_const_prop): Do not check expression_expensive_p.
        * fold-const.c (multiple_of_p): Exported.
        * double-int.c (double_int_mask): Exported.
        * double-int.h (double_int_mask): Declare.
        * tree-flow.h (struct tree_niter_desc): Removed additional_info
        field.  Added max field.

2007-03-13  David Taylor  <taylor@candd.org>

        PR driver/12448:
        * gcc.c (cpp_unique_options): If -MT or -MQ is seen, don't pass
        default -MQ.

2007-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/31123
        * pa.md (vdepi_ior): Don't allow zero length deposit.  Likewise for
        two unamed patterns.

2007-03-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.opt (mcx16, msahf): New options.
        * config/i386/i386.c (x86_cmpxchg16b, x86_sahf): Remove.
        (ix86_tune_features) [X86_TUNE_USE_SAHF]: Enable for m_GENERIC.

        * config/i386/driver-i386.c (bit_LAHF_LM): New define.
        (host_detect_local_cpu): Detect cx16 and lahf_lm cpuid bits.
        Output -mcx16 and -msahf options when corresponding bit is set.

        * doc/invoke.texi (i386 and x86-64 Options): Document -mcx16
        and -msahf options.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

        * configure.ac: Test for assembler tolerance to # 0 "".
        * configure, config.in: Rebuilt.
        * final.c (final_scan_insn): Emit it if HAVE_AS_LINE_ZERO.

2007-03-13  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Spec Files): Update for '%{,' spec.

        * config/rs6000/darwin-fallback.c: Compile file only on powerpc.
        (handle_syscall): Handle direct system calls.
        * config/rs6000/darwin.h (HAS_MD_FALLBACK_FRAME_STATE_FOR): Delete.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/invoke.texi: Fix cpp.info cross-reference.
        * doc/passes.texi: Fix gcc.info cross-reference.

2007-03-12  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/30835
        * lambda-code.c (can_convert_to_perfect_nest): Check whether
        bb_for_stmt is not NULL before accessing it.

2007-03-12  Joseph Myers  <joseph@codesourcery.com>

        * gcc.c (main): Handle target_sysroot_hdrs_suffix being NULL for
        some multilibs.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

        PR 30635
        * doc/install.texi: Document --enable-stage1-languages

2007-03-12  Steven Bosscher  <steven@gcc.gnu.org>

        * tree-pass.h (pass_into_cfg_layout_mode,
        pass_outof_cfg_layout_mode): Declare.
        * cfglayout.c (into_cfg_layout_mode, outof_cfg_layout_mode,
        pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode): New.
        * passes.c (pass_into_cfg_layout_mode): Schedule before jump2.
        (pass_outof_cfg_layout_mode): Schedule after pass_rtl_ifcvt.

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

        * c-decl.c (warn_variable_length_array): New function.
        Refactored from grokdeclarator to handle warn_vla
        and handle unnamed array case.
        (grokdeclarator): Refactored VLA warning case.
        * c.opt (Wvla): New flag.
        * doc/invoke.texi (Wvla): New warning.

2007-03-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_elf_section_type_flags): New.
        (TARGET_SECTION_TYPE_FLAGS): New.

2007-03-12  Richard Henderson  <rth@redhat.com>

        * config/darwin.c (machopic_reloc_rw_mask): New.
        * config/darwin-protos.h (machopic_reloc_rw_mask): Declare.
        * config/darwin.h (TARGET_ASM_RELOC_RW_MASK): New.

2007-03-12  Mark Mitchell  <mark@codesourcery.com>

        * cppdefault.c (cpp_EXEC_PREFIX): New variable.
        * cppdefault.h (cpp_PREFIX): Document.
        (cpp_PREFIX_len): Likewise.
        (cpp_EXEC_PREFIX): New variable.
        * Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX.
        * c-incpath.c (add_standard_paths): Correct logic for relocating
        paths within prefix.

2007-03-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fixuns_trunc<mode>hi2): Implement from
        fixuns_truncsfhi2 and fixuns_truncdfhi2 using SSEMODEF
        mode macro.
        (fix_trunc<mode>di_sse): Implement from fix_truncsfdi_sse and
        fix_truncdfdi_sse using SSEMODEF mode macro.
        (fix_trunc<mode>si_sse): Implement from fix_truncsfsi_sse and
        fix_truncdfsi_sse using SSEMODEF mode macro.
        (fix_trunc?f?i_sse peephole2): Implement using SSEMODEF mode macro.
        (fix_trunc?f?i_sse K8 peephole2): Fix register constraint.

2007-03-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add
        elfos.h to tm_file.

2007-03-12  Olga Golovanevsky  <olga@il.ibm.com>

        * tree.h : Add multiple_of_p declaration.
        * fold-const.c (multiple_of_p): Make multiple_of_p public.
        * ipa-type-escape.c (results_of_malloc): Redundant.
        (visited_stmts): New. Visited stmt for walk_use_def_chains.
        (cast_type): Extended with new members.
        (check_cast): Returns cast_type.
        (cast): New structure for data of walk_use_def_chains.
        (is_malloc_result, is_cast_from_non_pointer_1,
        is_cast_from_non_pointer,
        is_array_access_through_pointer_and_index): New functions.
        (look_for_casts): Returns cast types.
        (check_call): Returns void.
        (okay_pointer_operation): Use support of pointer plus index,
        pointer plus constant and allow all multiplications.

2007-03-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31115
        * tree-vrp.c (extract_range_from_binary_expr): Make sure
        the shift count is positive and non-anti-range for RSHIFT_EXPR.
        A shift count of zero is not special as with *_DIV_EXPR.
        (vrp_int_const_binop): Handle RSHIFT_EXPR for determining overflow
        direction.

2007-03-11  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (vrp_int_const_binop): Handle PLUS_EXPR and
        the *_DIV_EXPR codes correctly with overflow infinities.

2007-03-11  Ira Rosen  <irar@il.ibm.com>

        * tree-data-ref.c (analyze_offset): Add a return value (bool) to
        indicate success/failure of the analysis. Add negation to subtrahend
        in case of subtraction. Fail if both operands contain constants.
        (create_data_ref): Fail if analyze_offset fails.

2007-03-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (frndintxf2): Rename to ...
        (rintxf2): ... this. Remove expander having same name.
        (rintsf2, rintdf2): Implement using SSEMODEF macro.
        (roundsf2, rounddf2): Ditto.
        (lrint<mode>di2, lrint<mode>si2): Implement using SSEMODEI24 macro.
        (lround<mode>di2, lround<mode>si2): Ditto.

2007-03-11  Steven Bosscher  <steven@gcc.gnu.org>

        * lower-subreg.c: Include except.h.
        (decompose_multiword_subregs): Verify that the only control flow
        insns we can split are loads to multi-words pseudos.
        Handle breaking such blocks after splitting, instead of calling
        find_many_sub_basic_blocks.

        * loop-unroll.c (split_edge_and_insert): Don't set BB_SUPERBLOCK
        on the new basic block.  Add a lengthy comment explaining why we
        thought this was necessary.
        * cfglayout.c (cfg_layout_finalize): Don't break superblocks.

2007-03-10  Mark Mitchell  <mark@codesourcery.com>

        PR c++/30924
        * tree.c (walk_type_fields): Recurse into the element type of
        ARRAY_TYPEs if there is a pointer set.

2007-03-10  Dirk Mueller  <dmueller@suse.de>

        * c-common.c (warn_logical_operator): Fix condition.

2007-03-10  Tobias Schl�ter  <tobi@gcc.gnu.org>

        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Add missing
        quotation mark.
        * config/darwin.c (machopic_select_section): Remove superfluous
        argument in call to categorize_decl_for_section.  Remove unused
        variable shlib.

2007-03-10  Joseph Myers  <joseph@codesourcery.com>

        * configure.ac (glibc_header_dir): Set using with_build_sysroot if
        defined.
        * configure: Regenerate.

2007-03-10  Uros Bizjak  <ubizjak@gmail.com>

        PR target/31101
        * config/i386/i386.md (UNSPEC_C2_FLAG): New constant.
        (fpremxf4_i387, fprem1xf4_i387): Use UNSPEC_C2_FLAG.
        (fmodxf3, fmod<mode>3, remainderxf3, remainder<mode>3):
        Add LABEL_NUSES to emitted label.
        * config/i386/i386.c (ix86_emit_fp_unordered_jump): Add
        branch probability value to emitted jump insn.
        * reg-stack.c (subst_stack_regs_pat)[UNSPEC]: Handle UNSPEC_C2_FLAG.
        Do not check life information and do not re-arrange input operands
        for UNSPEC_FSCALE_EXP, UNSPEC_FPREM_U and UNSPEC_FPREM1_U.

2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_insn_length_adjustment): Adjust for
        the change of decode_asm_operands.

2007-03-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * mode-switching.c (create_pre_exit): Skip blockage insn.

2007-03-09  Diego Novillo  <dnovillo@redhat.com>

        * tree-pass.h (TODO_update_smt_usage): Remove.
        Update all users.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Remove
        argument SOME.
        Update all users.

2007-03-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (attr_length_call): Revise condition for long pc-relative branch.
        (output_call): Use "LONG_PIC_SDIFF" instruction sequence for long local
        calls on the SOM target.  Don't use "LONG_PIC_PCREL" call sequence on
        SOM target.

2007-03-09  Geoffrey Keating  <geoffk@apple.com>

        * gcc.c: Document %{, in big comment at top.
        (input_suffix_matches): Remove special handling for .s and
        .S.
        (input_spec_matches): New.
        (handle_braces): Handle %{,.
        (validate_switches): ',' indicates a value which is not a switch.
        * config/alpha/osf.h (ASM_FINAL_SPEC): Use %{, rather than %{.
        to detect assembler input.
        * config/i386/sol2.h (CPP_SPEC): Likewise.
        * config/rs6000/sysv4.h (ASM_SPEC): Likewise.
        * config/rs6000/vxworks.h (ASM_SPEC): Likewise.
        * config/rs6000/lynx.h (ASM_SPEC): Likewise.
        * config/rs6000/linux64.h (ASM_SPEC_COMMON): Likewise.
        * config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Objective-C plus
        -m64 causes deployment target to default to 10.5.
        * config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.

2007-03-09  Richard Henderson  <rth@redhat.com>

        PR target/26090
        * target.h (targetm.asm.out.reloc_rw_mask): New.
        * target-def.h (TARGET_ASM_RELOC_RW_MASK): New.
        (TARGET_ASM_OUT): Use it.
        * targhooks.c, targhooks.h (default_reloc_rw_mask): New.
        * varasm.c (categorize_decl_for_section): Remove shlib argument;
        use the new reloc_rw_mask target hook instead.
        (default_section_type_flags_1): Merge into...
        (default_section_type_flags): ... here.
        (decl_readonly_section_1): Merge into...
        (decl_readonly_section): ... here.
        (default_elf_select_section_1): Merge into...
        (default_elf_select_section): ... here.
        (default_unique_section_1): Merge into...
        (default_unique_section): ... here.
        (compute_reloc_for_rtx_1, compute_reloc_for_rtx): New.
        (default_select_rtx_section): Use it.
        (default_elf_select_rtx_section): Likewise.
        * output.h: Update to match.
        * doc/tm.texi (TARGET_ASM_RELOC_RW_MASK): New.
        * config/alpha/alpha.c (alpha_elf_reloc_rw_mask): New.
        (TARGET_ASM_RELOC_RW_MASK): New.
        * config/i386/i386.c (x86_64_elf_select_section): Adjust call
        to categorize_decl_for_section.
        (x86_64_elf_unique_section): Likewise.
        * config/ia64/hpux.h (TARGET_ASM_SELECT_SECTION,
        TARGET_ASM_UNIQUE_SECTION, TARGET_ASM_SELECT_RTX_SECTION): Remove.
        (TARGET_ASM_RELOC_RW_MASK): New.
        * config/ia64/ia64.c (ia64_rwreloc_select_section,
        ia64_rwreloc_unique_section, ia64_rwreloc_select_rtx_section): Remove.
        (ia64_hpux_reloc_rw_mask, ia64_reloc_rw_mask): New.
        (TARGET_RWRELOC): Remove.
        (ia64_section_type_flags): Adjust call to default_section_type_flags.
        * config/ia64/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
        * config/rs6000/rs6000.c (rs6000_elf_section_type_flags): Remove.
        (rs6000_elf_select_section, rs6000_elf_unique_section): Remove.
        (rs6000_elf_reloc_rw_mask, rs6000_xcoff_reloc_rw_mask): New.
        (rs6000_xcoff_select_section): Use decl_readonly_section.
        (rs6000_xcoff_section_type_flags): Use default_section_type_flags.
        * config/rs6000/sysv4.h (TARGET_ASM_RELOC_RW_MASK): New.
        (TARGET_ASM_SELECT_SECTION, TARGET_ASM_UNIQUE_SECTION): Remove.
        (TARGET_SECTION_TYPE_FLAGS): Remove.
        * config/rs6000/xcoff.h (TARGET_ASM_RELOC_RW_MASK): New.

2007-03-09  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_comparison): Remove compile-time evaluation of
        complex constant equality/inequality comparisons for here.
        (fold_binary) <EQ_EXPR>: Simplify complex comparisons that are
        known at compile-time or can be simplified to a scalar comparison.
        (fold_relational_const): Move compile-time evaluation of complex
        constant equality/inequality comparisons to here.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        PR rtl-optimization/30643
        * cse.c (cse_insn): Recompute dest_hash after insert_regs for
        dest_addr_elt.
        (fold_rtx): Recurse, like before 2006-11-03.

2007-03-09  DJ Delorie  <dj@redhat.com>

        * config/m32c/t-m32c (m32c-pragma.o): Add TM_H dependency to
        m32c-pragma.o.

2007-03-09  Aldy Hernandez  <aldyh@redhat.com>

        PR tree-optimization/30375
        * tree-ssa-dse.c (dse_possible_dead_store_p): Do not eliminate if
        LHS of statements is not the same.
        * testsuite/gcc.dg/tree-ssa/ssa-dse-10.c: New.

2007-03-09  Chao-ying Fu  <fu@mips.com>

        * doc/extend.texi (MIPS DSP Built-in Functions): Document the DSP
        REV 2.
        * doc/invoke.texi (-mdspr2): Document new option.
        * config/mips/mips.md (UNSPEC_ABSQ_S_QB .. UNSPEC_DPSQX_SA_W_PH):
        New unspec for DSP REV 2.
        (<u>mulsidi3_32bit_internal): Check if !TARGET_DSPR2, because
        these instructions are extended in DSP REV 2.
        (mips-dspr2.md): Include.
        * config/mips/mips.opt (mdspr2): New option.
        * config/mips/mips.c (mips_function_type): Add MIPS_V4QI_FTYPE_V4QI,
        MIPS_SI_FTYPE_SI_SI_SI, MIPS_DI_FTYPE_DI_USI_USI, MIPS_DI_FTYPE_SI_SI,
        MIPS_DI_FTYPE_USI_USI, MIPS_V2HI_FTYPE_SI_SI_SI.
        (override_options): Check TARGET_DSPR2 to enable MASK_DSP.
        (CODE_FOR_mips_mul_ph): Define it to CODE_FOR_mulv2hi3.
        (dsp_bdesc): Add DSP REV 2 builtins.  Remove 32-bit only DSP builtins.
        (dsp_32only_bdesc): New description table for 32-bit only DSP REV 1
        and 2 builtins.
        (bdesc_map): Add one field of unsupported_target_flags.
        (bdesc_arrays):  Update entries to have extra fields.  Add
        dsp_32only_bdesc.
        (mips_init_builtins): Initialize new function types.
        Check unsupported_target_fileds to filter out builtins.
        * config/mips/mips.h (TARGET_CPU_CPP_BUILTINS): Define __mips_dspr2 if
        TARGET_DSPR2.
        (ASM_SPEC): Pass mdspr2 to the assembler.
        * config/mips/mips-dspr2.md: New file.

2007-03-09  Sa Liu  <saliu@de.ibm.com>

        * config/rs6000/altivec.md: Fix vcond patterns using if_then_else.

2007-03-09  Ian Lance Taylor  <iant@google.com>

        * opts.c (common_handle_option): Treat -Wstrict-overflow (with no
        argument) like -Wstrict-overflow=2.
        * doc/invoke.texi (Warning Options): Update documentation.

2007-03-09  Dirk Mueller  <dmueller@suse.de>

        PR c++/17946
        * doc/invoke.texi (-Wlogical-op): Document.
        * common.opt (-Wlogical-op): New.
        * c-common.h (warn_logical_operator): Declare.
        * c-common.c (warn_logical_operator): Define.
        * c-typeck.c (parser_build_binary_op): Call
        warn_logical_operator.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.h (gen_rtx_ASM_INPUT): Use "" instead of NULL file name.
        * final.c (final_scan_insn): Test for non-"" file name.

2007-03-09  Sebastian Pop  <sebastian.pop@inria.fr>

        * doc/loop.texi: Document the Omega linear constraints solver.
        * doc/invoke.texi: Document -fcheck-data-deps, omega-max-vars,
        omega-max-geqs, omega-max-eqs, omega-max-wild-cards,
        omega-hash-table-size, omega-max-keys, and
        omega-eliminate-redundant-constraints.
        * tree-pass.h (pass_check_data_deps): Declared.
        * omega.c: New.
        * omega.h: New.
        * timevar.def (TV_CHECK_DATA_DEPS): Declared.
        * tree-ssa-loop.c (check_data_deps, gate_check_data_deps,
        pass_check_data_deps): New.
        * tree-data-ref.c (init_data_ref): Remove declaration.
        (dump_data_dependence_relation): Dump DDR_INNER_LOOP.
        (analyze_array): Renamed init_array_ref, move up initializations.
        (init_data_ref): Renamed init_pointer_ref.  Moved before its call.
        Removed arguments that are set to NULL.
        (analyze_indirect_ref): Correct indentation, correct call to
        init_pointer_ref.
        (object_analysis): Call init_array_ref instead of analyze_array.
        (initialize_data_dependence_relation): Initialize DDR_INNER_LOOP.
        (access_functions_are_affine_or_constant_p): Use DR_ACCESS_FNS instead
        of DR_ACCESS_FNS_ADDR.
        (init_omega_eq_with_af, omega_extract_distance_vectors,
        omega_setup_subscript, init_omega_for_ddr_1, init_omega_for_ddr,
        ddr_consistent_p): New.
        (compute_affine_dependence): Check consistency of ddrs when
        flag_check_data_deps is passed.
        (analyze_all_data_dependences): Uncomment.
        (tree_check_data_deps): New.
        * tree-data-ref.h: Include omega.h.
        (DR_ACCESS_FNS_ADDR): Removed.
        (data_dependence_relation): Add inner_loop.
        (DDR_INNER_LOOP): New.
        * common.opt (fcheck-data-deps): New.
        * tree-flow.h (tree_check_data_deps): Declare.
        * Makefile.in (TREE_DATA_REF_H): Depend on omega.h.
        (OBJS-common): Depend on omega.o.
        (omega.o): Define.
        * passes.c (pass_check_data_deps): Scheduled.
        * params.def (PARAM_OMEGA_MAX_VARS, PARAM_OMEGA_MAX_GEQS,
        PARAM_OMEGA_MAX_EQS, PARAM_OMEGA_MAX_WILD_CARDS,
        PARAM_OMEGA_HASH_TABLE_SIZE, PARAM_OMEGA_MAX_KEYS,
        PARAM_VECT_MAX_VERSION_CHECKS,
        PARAM_OMEGA_ELIMINATE_REDUNDANT_CONSTRAINTS): New.

2007-03-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30904
        PR middle-end/31058
        * tree-vrp.c (extract_range_from_binary_expr): Handle RSHIFT_EXPR
        the same way as *_DIV_EXPR.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * recog.c (decode_asm_operands): No mixed declarations and code.

2007-03-09  Alexandre Oliva  <aoliva@redhat.com>

        * rtl.def (ASM_INPUT): Add location.
        * rtl.h (ASM_INPUT_SOURCE_LOCATION): New.
        (ASM_INPUT_SOURCE_FILE, ASM_INPUT_SOURCE_LINE): New.
        (decode_asm_operands): Add loc operand.
        (gen_rtx_ASM_INPUT, gen_rtx_ASM_INPUT_loc): Define.
        * stmt.c (expand_asm): Rename to...
        (expand_asm_loc): ... this.  Add locus argument.  Pass it on to
        gen_rtx_ASM_INPUT_loc.
        (expand_asm_expr): Adjust.
        * recog.c (decode_asm_operands): Add loc operand.
        (check_asm_operands, extract_insn): Adjust.
        * reload1.c (maybe_fix_stack_asms): Likewise.
        * final.c (asm_insn_count): Likewise.
        (final_scan_insn): Output # line before and after asm.

2007-03-09  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (variable_info): Remove
        finished_solution.
        (new_var_info): Ditto.
        (shared_bitmap_info_t): New structure.
        (shared_bitmap_table): New variable.
        (shared_bitmap_hash): New function.
        (shared_bitmap_eq): Ditto
        (shared_bitmap_lookup): Ditto.
        (shared_bitmap_add): Ditto.
        (merge_smts_into): Change to take bitmap directly.
        (find_what_p_points_to): Rewrite to use shared bitmap hashtable.
        (init_alias_vars): Init shared bitmap hashtable.
        (delete_points_to_sets): Delete shared bitmap hashtable.
        * tree-ssa-operands.c (add_virtual_operand): Partially revert the
        is_aliased removal as a change that was still necessary was
        deleted.

2007-03-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (override_options): Conditionally disable
        x86_sahf for 64bit targets only.

2007-03-08  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C/31072
        * c-decl.c (merge_decls): Don't call make_var_volatile.
        * varasm.c (make_var_volatile): Remove.
        * output.h (make_var_volatile): Remove.

2007-03-08  Zdenek Dvorak  <dvorakz@suse.cz>

        PR tree-optimization/31085
        * tree-ssa-address.c (create_mem_ref): Fix test of type of base.

2007-03-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (lceil, lceilf, lceill, lfloor, lfloorf, lfloorl,
        llceil, llceilf, llceill, llfloor, llfloorf, llfloorl): Mark with
        ATTR_CONST_NOTHROW_LIST.

        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
        FIX_TRUNC_EXPR.

2007-03-08  Diego Novillo  <dnovillo@redhat.com>

        * doc/tree-ssa.texi: Remove documentation for V_MUST_DEF.

2007-03-08  Geoffrey Keating  <geoffk@apple.com>

        PR 31013
        * gccspec.c (lang_specific_driver): Do nothing when NEXT_OBJC_RUNTIME
        is declared.
        * config/darwin.h (REAL_LIBGCC_SPEC): When -fgnu-runtime is
        passed, use shared libgcc.

2007-03-08  Roger Sayle  <roger@eyesopen.com>

        * tree-eh.c (do_return_redirection): Call build_gimple_modify_stmt
        instead of calling build2 with a GIMPLE_MODIFY_STMT.
        (honor_protect_cleanup_actions, lower_try_finally_switch):
        Likewise.
        * tree-if-conv.c (replace_phi_with_cond_gimple_modify_stmt,
        ifc_temp_var): Likewise.
        * tree-inline.c (setup_one_parameter): Likewise.
        * tree-mudflap.c (mf_decl_cache_locals,
        mf_build_check_statement_for): Likewise.
        * tree-nested.c (init_tmp_var, save_tmp_var,
        finalize_nesting_tree_1): Likewise.
        * tree-outof-ssa.c (insert_copy_on_edge,
        insert_backedge_copies): Likewise.
        * tree-profile.c (tree_gen_edge_profiler,
        tree_gen_ic_profiler): Likewise.
        * tree-scalar-evolution.c (scev_const_prop): Likewise.
        * tree-sra.c (sra_build_assignment): Likewise.
        * tree-ssa-loop-im.c (determine_invariantness_stmt): Likewise.
        * tree-ssa-math-opts.c (insert_reciprocals,
        execute_cse_sincos_1): Likewise.
        * tree-tailcall.c (adjust_accumulator_values,
        adjust_return_value): Likewise.
        * tree-vect-patterns.c (vect_pattern_recog_1): Likewise.
        * tree-vect-transform.c (vect_create_data_ref_ptr,
        bump_vector_ptr, vect_init_vector, get_initial_def_for_induction,
        vect_create_epilog_for_reduction, vectorizable_reduction,
        vectorizable_call, vectorizable_conversion,
        vectorizable_assignment, vectorizable_operation,
        vectorizable_type_demotion, vect_gen_widened_results_half,
        vect_permute_store_chain, vectorizable_store,
        vect_setup_realignment, vect_permute_load_chain,
        vectorizable_load, vectorizable_condition,
        vect_create_cond_for_align_checks): Likewise.
        * tree-vrp.c (build_assert_expr_for): Likewise.

2007-03-08  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c: Include "intl.h".
        (usable_range_p): New static function.
        (compare_values_warnv): Don't test TYPE_OVERFLOW_UNDEFINED for
        overflowed values, juts set *strict_overflow_p.
        (compare_values): Only return -2 if one of the operands is not a
        constant.
        (compare_ranges): Call usable_range_p.
        (compare_range_with_value): Likewise.
        (vrp_evaluate_conditional_warnv): Rename from
        vrp_evaluate_conditional.  Make static.  Change all callers.
        (vrp_evaluate_conditional): New function.
        (simplify_div_or_mod_using_ranges): Issue warning about reliance
        on signed overflow.
        (simplify_abs_using_ranges): Likewise.
        (simplify_stmt_for_jump_threading): Add within_stmt parameter.
        * tree-ssa-dom.c (simplify_stmt_for_jump_threading): Add
        within_stmt parameter.
        * tree-ssa-propagate.c (fold_predicate_in): Update call to
        vrp_evaluate_conditional.
        * tree-ssa-threadedge.c
        (record_temporary_equivalences_from_stmts_at_dest): Change
        simplify parameter to take a second tree parameter.
        (simplify_control_stmt_condition): Likewise.
        (thread_across_edge): Likewise.
        * tree-flow.h (vrp_evaluate_conditional): Update declaration.
        (thread_across_edge): Likewise.
        * Makefile.in (tree-vrp.o): Depend upon intl.h.

2007-03-08  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TARGET_SAHF): New define.
        * config/i386/i386.c (ix86_tune_features) [X86_TUNE_USE_SAHF]:
        Also enable for m_K8, m_AMDFAM10 and m_CORE2.
        (x86_sahf): New global variable.
        (override_options): Add PTA_NO_SAHF to pta_flags enum.  Recode
        pta_flags masks using shifts.  Add PTA_NO_SAHF to x86_64 and
        nocona processor flags.  Set x86_sahf when PTA_NO_SAHF is not set
        in processor flags.  Do not unconditionally disable TARGET_USE_SAHF
        for 64-bit.
        (ix86_fp_comparison_sahf_cost): Return high value for !TARGET_SAHF.
        (ix86_expand_fp_compare): Check for TARGET_CMOVE or TARGET_SAHF
        when expanding fcomi/sahf based tests.
        (ix86_emit_fp_unordered_jump): Check for TARGET_SAHF when
        expanding sahf based alternative. Emit sahf based sequence when
        optimizing for code size.
        * config/i386/i386.md (x86_sahf_1): Do not disable for
        TARGET_64BIT, enable for TARGET_SAHF.

2007-03-08  Martin Michlmayr  <tbm@cyrius.com>

        * tree-ssa-coalesce.c (fail_abnormal_edge_coalesce): Remove
        spurious whitespace from error message.

2007-03-08  Volker Reichelt  <reichelt@netcologne.de>

        PR c++/30852
        * c-common.c (fold_offsetof_1): Handle COMPOUND_EXPR.

2007-03-08  Alexandre Oliva  <aoliva@redhat.com>

        * c-decl.c (grokdeclarator): Disable warnings for anonymous
        bitfields.
        * tree-sra.c (instantiate_element): Propagate disabled warnings
        from the element itself to the created variable.

2007-03-07  Richard Henderson  <rth@redhat.com>

        PR target/30848
        * reg-stack.c (emit_swap_insn): If a malformed asm was seen,
        silently fix up the stack in the case of a missing register.

2007-03-07  Paul Brook  <paul@codesourcery.com>

        * config/arm/libunwind.S: Add .arch/.object_arch for armv4 builds.

2007-03-07  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/unwind-arm.c (struct wmmxd_regs, struct wmmxc_regs):
        New.
        (phase1_vrs): Use them.
        (DEMAND_SAVE_WMMXD, DEMAND_SAVE_WMMXC): New.
        (__gnu_Unwind_Save_WMMXD, __gnu_Unwind_Restore_WMMXD,
        __gnu_Unwind_Save_WMMXC, __gnu_Unwind_Restore_WMMXC): Declare.
        (restore_non_core_regs): Call __gnu_Unwind_Restore_WMMXD and
        __gnu_Unwind_Restore_WMMXC if required.
        (_Unwind_VRS_Pop): Implement iWMMXt support.
        * config/arm/libunwind.S (gnu_Unwind_Restore_WMMXD,
        gnu_Unwind_Save_WMMXD, gnu_Unwind_Restore_WMMXC,
        gnu_Unwind_Save_WMMXC): Define.

2007-03-07  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (vxworks_override_options): Declare.
        (VXWORKS_OVERRIDE_OPTIONS): Use it.
        * config/vxworks.c: Include target.h and toplev.h.
        (vxworks_override_options): New function.
        * config/t-vxworks (vxworks.o): Depend on $(TARGET_H) and toplev.h.

2007-03-07  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (override_options): Don't emit an error when
        -mstack-size is used without providing -mstack-guard.
        (s390_emit_prologue): Choose stack_guard value automatically if not
        provided via command line.
        * doc/invoke.texi: Adjust description of -mstack-guard and -mstack-size.

2007-03-07  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/i386.c (output_set_got): Add a GOT initialization
        sequence for VxWorks PIC.
        (legitimate_pic_address_disp_p): Allow UNSPEC_GOT wrappers
        around labels as well as symbols.  Use gotoff_operand instead
        of local_symbolic_operand.
        (legitimize_pic_address): Use gotoff_operand instead of
        local_symbolic_operand.  Use @GOT accesses for labels as
        well as symbols.
        (ix86_output_addr_diff_elt): Use PC-relative rather than
        GP-relative offsets for VxWorks PIC.
        (ix86_expand_move): Pass NULL_RTX to legitimize_pic_address unless
        no_new_pseudos.  Check whether the returned register is op0.
        * config/i386/i386.md (tablejump): Use PC-relative rather than
        GP-relative offsets for VxWorks PIC.
        * config/i386/predicates.md (gotoff_operand): New predicate.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/vxworks.h (VXWORKS_GOTT_BASE, VXWORKS_GOTT_INDEX): Undefine
        before defining.
        * config/vxworks-dummy.h: New file.
        * config/i386/i386.h: Include it.

2007-03-07  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (is_inlined_entry_point): New
        (add_high_low_attributes): Emit DW_AT_entry_pc along with
        DW_AT_ranges if the first subblock is the entry point.

2007-03-06  David Daney  <ddaney@avtrex.com>

        * doc/install.texi (mips-*-*): Change recommended binutils
        version.

2007-03-06  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Add support for ATmega325P,
        ATmega3250P, ATmega329P, ATmega3290P, AT90USB82 and AT90USB162
        devices.
        * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * errors.h (warning, error, fatal, internal_error): Mark as cold.
        * predict.c (maybe_hot_bb): Cold functions are never hot; hot functions
        are hot.
        (probably_cold_bb_p): Cold functions are cold.
        (probably_never_executed_bb_p): Cold functions are cold.
        (tree_bb_level_predictions): Predict calls to cold functions as not
        taken.
        (compute_function_frequency): Check hot/cold attributes.
        * function.h (function_frequency): Update comments.
        * predict.def (PRED_COLD_FUNCTION): Predict cold function.
        * c-common.c (handle_hot_attribute, handle_cold_attribute): New.
        (c_common_att): Add cold and hot.

        * doc/extend.texi (hot,cold attributes): Document.

2007-03-06  Andrew Haley  <aph@redhat.com>

        * function.c (expand_function_end): Move blockage to just after we
        emit the label for the naked return from the function.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/i386/att.h (ASM_OUTPUT_ASCII, ASM_OUTPUT_SKIP): Undefine
        before redefining.

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * reg-stack.c (reg_to_stack): Large models don't allow NAN to be
        loaded for constant large models.  Non-large 64bit PIC can do.
        * i386.h (CASE_VECTOR_MODE): Large PIC cases are 64bit.
        * cmodel.h: Add LARGE PIC.
        * i386.md (UNSPEC_PLTOFF): New.
        (UNSPEC_SET_RIP, UNSPEC_SET_GOT_OFFSET): New; renumber other unspecs as
        needed.
        (*call_1_rex64): Disable for large models.
        (*call_1_rex64_large): New.
        (*call_value_1_rex64): Disable for large models.
        (*call_value_1_rex64_large): New.
        (set_rip_rex4): New.
        (set_got_offset_rex64): New.
        * predicates.md (constant_call_address_operand): For large model
        constant calls are not possible.
        * i386-protos.h (construct_plt_address): Declare.
        * i386.c (override_options): Accept large models.
        (ix86_expand_prologue): Expand large PIC GOT pointer load.
        (legitimate_constant_p): Add new UNSPECs.
        (legitimate_pic_operand_p): Likewise.
        (legitimate_pic_address_disp_p): Disallow local symbols for large PICs.
        (legitimize_pic_address): Do easy RIP relative way for TLS only for
        non-large model.
        (output_pic_addr_const): Add PLTOFF.
        (ix86_output_addr_diff_elt): Output 64bit tables when needed.
        (ix86_expand_move): Legitimize pic address when in PIC mode.
        (construct_plt_address): New function.
        (ix86_expand_call): Offload the address to register and use GOT pointer
        for large model.
        * invoke.texi (mcmodel=large): Update documentation.

2007-03-06  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (x86_use_leave, x86_push_memory,
        x86_zero_extend_with_and, x86_movx, x86_double_with_add,
        x86_use_bit_test, x86_unroll_strlen, x86_deep_branch,
        x86_branch_hints, x86_use_sahf, x86_partial_reg_stall,
        x86_partial_flag_reg_stall, x86_use_himode_fiop, x86_use_simode_fiop,
        x86_use_mov0, x86_use_cltd, x86_read_modify_write, x86_read_modify,
        x86_split_long_moves, x86_promote_QImode, x86_fast_prefix,
        x86_single_stringop, x86_qimode_math, x86_promote_qi_regs,
        x86_himode_math, x86_promote_hi_regs, x86_sub_esp_4, x86_sub_esp_8,
        x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_prologue_using_move, x86_epilogue_using_move, x86_shift1,
        x86_sse_partial_reg_dependency, x86_sse_split_regs,
        x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,
        x86_sse_load0_by_pxor, x86_use_ffreep, x86_use_incdec,
        x86_inter_unit_moves, x86_ext_80387_constants, x86_four_jump_limit,
        x86_schedule, x86_use_bt, x86_pad_returns,
        x86_use_xchgb): Merge into ...
        (ix86_tune_features): ... here.  New array.
        (x86_cmove, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
        x86_bswap): Merge into ...
        (ix86_arch_features): ... here.  New array.
        (x86_3dnow_a): Remove.
        (x86_accumulate_outgoing_args): Make static.
        (x86_arch_always_fancy_math_387): Make static.
        (ix86_tune_mask, ix86_arch_mask): Move ...
        (override_options): ... to local variables here.  Apply the
        appropriate mask to each element of ix86_arch_features and
        ix86_tune_features.  Adjust TARGET_CMOVE and TARGET_USE_SAHF
        as were done in the old macros.
        (standard_80387_constant_p): Use TARGET_EXT_80387_CONSTANTS.
        * config/i386/i386.h (x86_use_leave, x86_push_memory,
        x86_zero_extend_with_and, x86_use_bit_test, x86_cmove, x86_deep_branch,
        x86_branch_hints, x86_unroll_strlen, x86_double_with_add,
        x86_partial_reg_stall, x86_movx, x86_use_himode_fiop,
        x86_use_simode_fiop, x86_use_mov0, x86_use_cltd, x86_use_xchgb,
        x86_read_modify_write, x86_read_modify, x86_split_long_moves,
        x86_promote_QImode, x86_single_stringop, x86_fast_prefix,
        x86_himode_math, x86_qimode_math, x86_promote_qi_regs,
        x86_promote_hi_regs, x86_integer_DFmode_moves, x86_add_esp_4,
        x86_add_esp_8, x86_sub_esp_4, x86_sub_esp_8,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_prologue_using_move,
        x86_epilogue_using_move, x86_decompose_lea,
        x86_arch_always_fancy_math_387, x86_shift1,
        x86_sse_partial_reg_dependency, x86_sse_split_regs,
        x86_sse_unaligned_move_optimal, x86_sse_typeless_stores,
        x86_sse_load0_by_pxor, x86_use_ffreep, x86_inter_unit_moves,
        x86_schedule, x86_use_bt, x86_cmpxchg, x86_cmpxchg8b, x86_xadd,
        x86_use_incdec, x86_pad_returns, x86_bswap,
        x86_partial_flag_reg_stall): Remove.
        (enum ix86_tune_indices): New.
        (ix86_tune_features): New.
        (TARGET_USE_LEAVE, TARGET_PUSH_MEMORY, TARGET_ZERO_EXTEND_WITH_AND,
        TARGET_USE_BIT_TEST, TARGET_UNROLL_STRLEN,
        TARGET_DEEP_BRANCH_PREDICTION, TARGET_BRANCH_PREDICTION_HINTS,
        TARGET_DOUBLE_WITH_ADD, TARGET_USE_SAHF, TARGET_MOVX,
        TARGET_PARTIAL_REG_STALL, TARGET_PARTIAL_FLAG_REG_STALL,
        TARGET_USE_HIMODE_FIOP, TARGET_USE_SIMODE_FIOP, TARGET_USE_MOV0,
        TARGET_USE_CLTD, TARGET_USE_XCHGB, TARGET_SPLIT_LONG_MOVES,
        TARGET_READ_MODIFY_WRITE, TARGET_READ_MODIFY, TARGET_PROMOTE_QImode,
        TARGET_FAST_PREFIX, TARGET_SINGLE_STRINGOP, TARGET_QIMODE_MATH,
        TARGET_HIMODE_MATH, TARGET_PROMOTE_QI_REGS, TARGET_PROMOTE_HI_REGS,
        TARGET_ADD_ESP_4, TARGET_ADD_ESP_8, TARGET_SUB_ESP_4,
        TARGET_SUB_ESP_8, TARGET_INTEGER_DFMODE_MOVES,
        TARGET_PARTIAL_REG_DEPENDENCY, TARGET_SSE_PARTIAL_REG_DEPENDENCY,
        TARGET_SSE_UNALIGNED_MOVE_OPTIMAL, TARGET_SSE_SPLIT_REGS,
        TARGET_SSE_TYPELESS_STORES, TARGET_SSE_LOAD0_BY_PXOR,
        TARGET_MEMORY_MISMATCH_STALL, TARGET_PROLOGUE_USING_MOVE,
        TARGET_EPILOGUE_USING_MOVE, TARGET_SHIFT1, TARGET_USE_FFREEP,
        TARGET_INTER_UNIT_MOVES, TARGET_FOUR_JUMP_LIMIT, TARGET_SCHEDULE,
        TARGET_USE_BT, TARGET_USE_INCDEC, TARGET_PAD_RETURNS,
        TARGET_EXT_80387_CONSTANTS): Use it.
        (enum ix86_arch_indices): New.
        (ix86_arch_features): New.
        (TARGET_CMOVE, TARGET_CMPXCHG, TARGET_CMPXCHG8B, TARGET_XADD,
        TARGET_BSWAP): Use it.
        (ix86_tune_mask, ix86_arch_mask): Remove.

2007-03-06  Joseph Myers  <joseph@codesourcery.com>

        PR bootstrap/31020
        * configure.ac (CROSS_SYSTEM_HEADER_DIR, build_system_header_dir):
        Define using $${sysroot_headers_suffix}.
        * configure: Regenerate.
        * cppdefault.c (cpp_include_defaults): Make FIXED_INCLUDE_DIR a
        multilib-suffixed directory if SYSROOT_HEADERS_SUFFIX_SPEC
        defined.
        * doc/invoke.texi (-print-sysroot-headers-suffix): Document.
        * gcc.c (print_sysroot_headers_suffix): New.
        (option_map): Include --print-sysroot-headers-suffix.
        (display_help): Mention -print-sysroot-headers-suffix.
        (process_command): Handle -print-sysroot-headers-suffix.
        (do_spec_1): Append multilib directory to include-fixed path if
        sysroot suffixes in use.
        (main): Handle -print-sysroot-headers-suffix.
        * Makefile.in (start.encap): Don't depend on xlimits.h
        (xlimits.h): Remove.
        (stmp-int-hdrs): Don't depend on xlimits.h.  Inline generation of
        limits.h for each multilib in fixinc_list.
        (fixinc_list, s-fixinc_list): New.
        (stmp-fixinc): Depend on fixinc_list.  If not copying headers,
        generate them for each multilib in fixinc_list.
        (stmp-fixproto): Use include-fixed.  Run fixproto for each
        multilib in fixinc_list.
        (mostlyclean): Don't remove xlimits.h.
        (clean): Remove include-fixed.
        (real-install-headers-tar, real-install-headers-cpio,
        real-install-headers-cp): Don't copy include, only include-fixed.
        (install-mkheaders): Depend on fixinc_list.  Don't depend on
        xlimits.h.  Save limits.h files for each multilib in fixinc_list.
        Always save mkinstalldirs.  Preserve ${sysroot_headers_suffix} in
        SYSTEM_HEADER_DIR setting in mkheaders.conf.

2007-03-06  Jan Hubicka  <jh@suse.cz>

        * regstack.c (reg_to_stack): When in 64bit PIC mode, we still can load
        NANs easilly.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * configure.ac: Allow tm_file to contain build-directory files.
        * configure: Regenerate.
        * config.gcc (m68k-*-uclinux*): Add ./sysroot-suffix.h to tm_file.
        * config/m68k/t-uclinux (sysroot-suffix.h): New target.
        * config/m68k/print-sysroot-suffix.sh: New file.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (PIC_OFFSET_TABLE_REGNUM): Use the REGNO
        of pic_offset_table_rtx if reload_completed.
        (CONDITIONAL_REGISTER_USAGE): Use PIC_REG instead of
        PIC_OFFSET_TABLE_REGNUM.
        * config/m68k/m68k.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Always
        return true.
        (m68k_save_reg): Use PIC_REG instead of PIC_OFFSET_TABLE_REGNO.
        (m68k_output_mi_thunk): Rewrite to use RTL.  Honor vcall_offset.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
        functions that call eh_return.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Save the PIC register in
        functions that need a constant pool.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        PR target/28181
        * config/m68k/m68k-protos.h (m68k_secondary_reload_class): Declare.
        (m68k_preferred_reload_class): Likewise.
        * config/m68k/m68k.h (HARD_REGNO_MODE_OK): Remove duplicated comment.
        (SECONDARY_RELOAD_CLASS): Define.
        (PREFERRED_RELOAD_CLASS): Use m68k_preferred_reload_class.
        (LIMIT_RELOAD_CLASS): Delete.
        * config/m68k/m68k.c (m68k_regno_mode_ok): Don't prevent address
        registers from storing bytes.
        (m68k_secondary_reload_class): New function.
        (m68k_preferred_reload_class): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_save_reg): Remove special case for
        leaf functions.
        (m68k_expand_prologue): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (output_sibcall): Declare.
        (mips_expand_epilogue): Add a bool parameter.
        (m68k_legitimize_sibcall_address): Declare.
        * config/m68k/m68k.c (TARGET_FUNCTION_OK_FOR_SIBCALL): Define.
        (m68k_expand_epilogue): Add a parameter to select between sibling
        and normal epilogues.  Only generate a return for the latter.
        (m68k_ok_for_sibcall_p): New function.
        (m68k_legitimize_sibcall_address, output_sibcall): New functions.
        * config/m68k/m68k.md (sibcall, *sibcall): New patterns.
        (sibcall_value, *sibcall_value): Likewise.
        (*call, *call_value): Require !SIBLING_CALL_P.
        (epilogue): Update call to m68k_expand_epilogue.
        (sibcall_epilogue): New pattern.
        * config/m68k/predicates.md (const_call_operand): Say that this
        predicate applies to sibling calls too.
        (sibcall_operand): New predicate.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movsf_cf_soft): Provide the same non-mov3q
        alternatives as movsi_cf.
        (movsf_cf_hard): Add commentary.

2007-03-06  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (m68k_interrupt_function_p): Declare.
        (m68k_movem_pattern_p, m68k_output_movem): Likewise.
        (m68k_expand_prologue, m68k_expand_epilogue): Likewise.
        * config/m68k/m68k.h (EPILOGUE_USES): Define.  Treat all registers
        as being live on exit from an interrupt function.
        (PRINT_OPERAND_PUNCT_VALID_P): Return true for '?'.
        * config/m68k/m68k.c (MIN_MOVEM_REGS, MIN_FMOVEM_REGS): New macros.
        (m68k_frame): Remove reg_rev_mask and fpu_rev_mask.
        (TARGET_ASM_FUNCTION_PROLOGUE, TARGET_ASM_FUNCTION_EPILOGUE): Delete.
        (m68k_interrupt_function_p): Globalize.
        (m68k_compute_frame_layout): Remove reverse mask code.
        (m68k_emit_movem, m68k_set_frame_related): New functions.
        (m68k_output_function_prologue): Delete in favor of...
        (m68k_expand_prologue): ...this new function.
        (m68k_output_function_epilogue): Delete in favor of...
        (m68k_expand_epilogue): ...this new function.
        (m68k_split_offset, m68k_movem_pattern_p, m68k_output_movem): New
        functions.
        (print_operand): Handle %?.
        * config/m68k/m68k.md (UNSPEC_SIN, UNSPEC_COS): Remove excess space.
        (UNSPEC_GOT, A1_REG, PIC_REG, FP0_REG): New constants.
        (prologue, epilogue): New patterns.
        (return): Turn into a define_expand.
        (*return): New pattern, derived from old "return" pattern.  Use rte
        rather than rts for interrupt functions.  Only use rtd if the pop
        count is nonzero.
        (*m68k_store_multiple, *m68k_store_multiple_automod): New patterns.
        (*m68k_load_multiple, *m68k_load_multiple_automod): Likewise.
        (link, *link, unlink, *unlink, load_got): Likewise.

2007-03-06  Richard Sandiford  <richard@codesourcery.com>

        PR target/23482
        PR target/17114
        * config/m68k/m68k-protos.h (m68k_legitimate_base_reg_p): Declare.
        (m68k_legitimate_index_reg_p, m68k_legitimate_address_p): Likewise.
        (m68k_matches_q_p, m68k_matches_u_p): Likewise.
        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Use m68k_matches_q_p
        and m68k_matches_u_p.
        (PCREL_GENERAL_OPERAND_OK, LEGITIMATE_BASE_REG_P): Delete.
        (INDIRECTABLE_1_ADDRESS_P, GO_IF_NONINDEXED_ADDRESS): Delete.
        (GO_IF_INDEXABLE_BASE, GO_IF_INDEXING, GO_IF_INDEXED_ADDRESS): Delete.
        (LEGITIMATE_INDEX_REG_P, LEGITIMATE_INDEX_P): Delete.
        (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Delete.
        (REG_STRICT_P): New macro.
        (LEGITIMATE_PIC_OPERAND_P): Use REG_STRICT_P rather than
        PCREL_GENERAL_OPERAND_OK.
        (REG_OK_FOR_BASE_P): Merge definitions.  Use REG_STRICT_P and
        m68k_legitimate_base_reg_p.
        (REG_MODE_OK_FOR_INDEX_P): Likewise m68k_legitimate_index_reg_p.
        (GO_IF_LEGITIMATE_ADDRESS): Likewise m68k_legitimate_address_p.
        (PIC_CASE_VECTOR_ADDRESS): Update comment.
        * config/m68k/m68k.c (m68k_address): New structure.
        (m68k_legitimate_base_reg_p, m68k_legitimate_index_reg_p)
        (m68k_decompose_index, m68k_legitimate_constant_address_p)
        (m68k_jump_table_ref_p, m68k_decompose_address)
        (m68k_legitimate_address_p, m68k_legitimate_mem_p, m68k_matches_q_p)
        (m68k_matches_u_p): New functions.
        (print_operand_address): Rewrite to use m68k_decompose_index.

2007-03-05  David Taylor  <dtaylor@emc.com>

        * gcc.c: Correct copyright date in --version output.

2007-03-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md: In unamed move patterns, disparge copies between general
        and floating point registers using '?' modifier.  Don't include 'f'
        constraint for register preferences in DImode, SImode, HImode and
        QImode patterns.  Likewise for 'r' in DFmode and SFmode patterns.
        Remove constraints for copies between general and floating registers
        in soft-float DFmode pattern.
        (movdf): Fail if operand1 is a CONST_DOUBLE and operand0 is a hard
        floating register.
        (movsf): Likewise.

2007-03-05  Mike Stump  <mrs@apple.com>

        * c-common.c (targetcm): Add.
        * c-opts.c (c_common_handle_option): Handle language specific
        target options.
        * opts.c (handle_option): Verify language for target options, if
        any are given.
        * opth-gen.awk: Add CL_LANG_ALL.
        * target-def.h (TARGET_HANDLE_C_OPTION): Add.
        (TARGETCM_INITIALIZER): Add.
        * target.h (struct gcc_targetcm): Add.
        (targetcm): Add.
        * targhooks.c (default_handle_c_option): Add.
        * targhooks.h (default_handle_c_option): Add.
        * doc/tm.texi (TARGET_HANDLE_C_OPTION): Add.

        * config/darwin.opt (iframework): Add.
        * config/darwin.h (TARGET_HAS_TARGETCM): Add.
        * config/darwin-c.c (handle_c_option): Add.
        (TARGET_HANDLE_C_OPTION): Add.
        (targetcm): Add.
        * doc/invoke.texi (Darwin Options): Add -iframework.

2007-03-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * convert.c (convert_to_integer): Fix nearbyint/rint -> *lrint
        conversion.

2007-03-05  Ian Lance Taylor  <iant@google.com>

        * c.opt (fgnu89-inline): New option.
        * c-opts.c (c_common_post_options): Set default value for
        flag_gnu89_inline.
        * c-decl.c (WANT_C99_INLINE_SEMANTICS): Remove.
        (pop_scope): Check flag_gnu89_inline rather than flag_isoc99 for
        inline functions.
        (diagnose_mismatched_decls, merge_decls, start_decl): Likewise.
        (grokdeclarator, start_function): Likewise.
        * c-cppbuiltin.c (c_cpp_builtins): Define either
        __GNUC_GNU_INLINE__ or __GNUC_STDC_INLINE__.
        * doc/invoke.texi (Option Summary): Mention -fgnu89-inline.
        (C Dialect Options): Document -fgnu89-inline.
        * doc/extend.texi (Function Attributes): Explain what the
        gnu_inline attribute does.
        * doc/cpp.texi (Common Predefined Macros): Document
        __GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.

2007-03-05  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/31034
        * tree-vrp.c (extract_range_from_assert): Don't try to handle a
        half-range if the other side is an overflow infinity.

2007-03-05  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config.gcc (bfin*-uclinux*): Use t-bfin-uclinux.
        (bfin*-linux-uclibc*): New configuration.
        * config/linux.h (LINK_GCC_C_SEQUENCE_SPEC): Undefined before
        defining.
        * config/bfin/linux.h: New file.
        * config/bfin/libgcc-bfin.ver: New file.
        * config/bfin/t-bfin-uclinux: New file.
        * config/bfin/t-bfin-linux: New file.
        * config/bfin/uclinux.h (LINUX_TARGET_OS_CPP_BUILTINS): New macro.
        (TARGET_OS_CPP_BUILTINS): New macro.

2007-03-05  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_binary): Remove duplicate folding
        of comparison of non-null ADDR_EXPR against null.

2007-03-05  Richard Guenther  <rguenther@suse.de>
            Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/26420
        * tree-vectorizer.c (vectorize_loops): Bail out early if there
        are no loops in the function.  Only print the number of
        vectorized loops if it is greater than zero or we are supposed
        to print information about unvectorized loops.

2007-03-05  Revital Eres  <eres@il.ibm.com>

        * gcc.dg/var-expand1.c: New test.
        * loop-unroll.c (analyze_insn_to_expand_var): Add dump info
        when an accumulator is expanded.

2007-03-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR other/30465
        * c-common.c (convert_and_check): Don't give warnings for
        conversion if 'expr' already overflowed.

2007-03-04  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/30744
        * fold-const.c (fold_comparison): Enforce type consistency when
        transforming ~X op ~Y to Y op X, and ~X op C to X op' ~C.

2007-03-04  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-address.c (create_mem_ref): Do not put an expression
        containing a cast to the base of TARGET_MEM_REF.

2007-03-04  Martin Michlmayr  <tbm@cyrius.com>

        * tree.c (tree_contains_struct_check_failed): Remove spurious
        whitespace from error message.

2007-03-04 Andrew Pinski <andrew_pinski@playstation.sony.com>

        PR target/30406
        * config/rs6000/rs6000.c (rs6000_function_value): Look at bit size
        instead of precision.

2007-03-04  Roman Zippel <zippel@linux-m68k.org>
            Nathan Sidwell  <nathan@codesourcery.com>

        * emit-rtl.c (find_auto_inc): New.
        (try_split): recreate REG_INC notes,
        Use regular for loops rather than whiles.

2007-03-03  Andreas Schwab  <schwab@suse.de>

        * configure.ac (HAVE_AS_REL16): Move test back to correct place.
        * configure: Regenerate.

2007-03-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.def (ATTR_MATHFN_FPROUNDING): Rely on
        flag_rounding_math, not flag_unsafe_math_optimizations.

        * c-pretty-print.c (pp_c_direct_abstract_declarator): Use
        fold_build2.
        * config/alpha/alpha.c (alpha_fold_builtin_zapnot,
        alpha_fold_vector_minmax): Likewise.
        * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
        * config/sparc/sparc.c (sparc_gimplify_va_arg): Likewise.

2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-sra.c (sra_walk_fns) <ldst>: Document new restriction.
        (sra_walk_modify_expr) <rhs_elt>: Treat the reference as a use
        if the lhs has side-effects.
        <lhs_elt>: Treat the reference as a use if the rhs has side-effects.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (TUNEMASK): Remove define.
        (ARCHMASK): Remove define.
        (TARGET_*): Use ix86_tune_mask variable instead of TUNEMASK.
         Use ix86_arch_mask variable instead of ARCHMASK.
        * config/i386/i386.c (override_options): Ditto.
        (standard_80387_constant_p): Ditto.

2007-03-02  Ian Lance Taylor  <iant@google.com>

        Used signed infinities in VRP.
        * tree-vrp.c (uses_overflow_infinity): New static function.
        (supports_overflow_infinity): New static function.
        (make_overflow_infinity): New static function.
        (negative_overflow_infinity): New static function.
        (positive_overflow_infinity): New static function.
        (is_negative_overflow_infinity): New static function.
        (is_positive_overflow_infinity): New static function.
        (is_overflow_infinity): New static function.
        (overflow_infinity_range_p): New static function.
        (compare_values_warnv): New function split out of compare_values.
        (compare_value): Call it.
        (set_value_range_to_nonnegative): Add overflow_infinity
        parameter.  Change caller.
        (vrp_expr_computes_nonnegative): Add strict_overflow_p parameter.
        Change callers.
        (vrp_expr_computes_nonzero): Likewise.
        (compare_ranges, compare_range_with_value): Likewise.
        (compare_name_with_value, compare_names): Likewise.
        (vrp_evaluate_conditional): Likewise.
        (set_value_range): Handle infinity
        (vrp_operand_equal_p, operand_less_p): Likewise.
        (extract_range_from_assert): Likewise.
        (vrp_int_const_binop): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        (extract_range_from_comparison): Likewise.
        (extract_range_from_expr): Likewise.
        (dump_value_range): Likewise.
        (vrp_visit_cond_stmt, vrp_visit_phi_node): Likewise.
        (test_for_singularity): Likewise.
        (vrp_int_const_binop): Remove inline qualifier.
        (adjust_range_with_scev): Add comment.
        * tree-flow.h (vrp_evaluate_conditional): Update declaration.

2007-03-02  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-structalias.c (could_have_pointers): Tidy.
        (get_constraint_for): Likewise.
        (do_structure_copy): Likewise.
        (find_func_aliases): Fix references to MODIFY_EXPR.
        (intra_create_variable_infos): Tidy.
        * tree-ssa-operands.c (add_virtual_operand): Add argument
        IS_CALL_SITE.
        When adding members of alias sets, if IS_CALL_SITE is true and
        the symbol is not call-clobbered, skip it.
        Adjust all callers.

2007-03-02  Eric Botcazou  <ebotcazou@adacore.com>

        * config/alpha/alpha.c (alpha_gp_save_rtx): Insert the insns at the
        entry by means of emit_insn_at_entry.

2007-03-02  Richard Henderson  <rth@redhat.com>

        * expr.h (promoted_input_arg): Remove decl.
        * function.c (promoted_input_arg): Merge into ...
        * combine.c (setup_incoming_promotions): ... only caller.
        Rearrange to avoid double loop.

2007-03-02  Ben Elliston  <bje@au.ibm.com>
            Peter Bergner  <bergner@vnet.ibm.com>
            Janis Johnson  <janis187@us.ibm.com>

        * config/rs6000/dfp.md: New file.
        * config/rs6000/rs6000.md: Include dfp.md.
        (add<mode>3_internal1): Disable for DECIMAL_FLOAT_MODE_P operands.
        * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Handle DDmode
        and TDmode decimal float modes in FP registers.
        (num_insns_constant): Likewise.
        (rs6000_legitimate_offset_address_p): Likewise.
        (rs6000_legitimize_address): Likewise.
        (rs6000_legitimize_reload_address): Likewise.
        (rs6000_legitimate_address): Likewise.
        (rs6000_emit_move): Likewise.
        (function_arg_boundary): Likewise.
        (function_arg_advance): Likewise.
        (rs6000_darwin64_record_arg_recurse): Likewise.
        (function_arg): Likewise.
        (rs6000_gimplify_va_arg): Likewise.
        (rs6000_split_multireg_move): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_output_function_epilogue): Likewise.
        (rs6000_register_move_cost): Likewise.
        (rs6000_function_value): Likewise.
        (rs6000_libcall_value): Likewise.

2007-03-02  Richard Sandiford  <richard@codesourcery.com>

        * config/t-vxworks (LIMITS_H_TEST): Define to true for VxWorks.

2007-03-02  Richard Sandiford  <richard@codesourcery.com>

        * config/t-vxworks (LIBGCC2_INCLUDES): Pass -nostdinc.
        Use $MULTIDIR to choose between the kernel and RTP headers,
        and use $WIND_BASE and $WIND_USR to locate them.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (override_options): Put initialization of
        ix86_tune_mask and ix86_arch_mask to the correct place.

2007-03-02  Uros Bizjak  <ubizjak@gmail.com>
            Michael Meissner  <michael.meissner@amd.com>

        PR target/31019
        * config/i386/i386.h (TUNEMASK): Redefine to use ix86_tune_mask.
        (ARCHMASK): Define.
        (TARGET_CMOVE): Use ARCHMASK.
        (TARGET_CMPXCHG): Ditto.
        (TARGET_CMPXCHG8B): Ditto.
        (TARGET_XADD): Ditto.
        (TARGET_BSWAP): Ditto.
        * config/i386/i386.c (ix86_tune_mask): New global variable.
        (ix86_arch_mask): Ditto.
        (override_options): Initialize ix86_tune_mask and
        ix86_arch_mask. Use ARCHMASK to clear MASK_NO_FANCY_MATH_387 in
        target_flags.

2007-03-02  Ben Elliston  <bje@au.ibm.com>

        PR 30992
        * config/dfp-bit.c (DFP_TO_INT): Initialise qval with "1.".

2007-03-02  Joseph Myers  <joseph@codesourcery.com>

        * target.h (init_dwarf_reg_sizes_extra): New target hook.
        * target-def.h (TARGET_INIT_DWARF_REG_SIZES_EXTRA): New default.
        * doc/tm.texi (TARGET_INIT_DWARF_REG_SIZES_EXTRA): Document.
        * dwarf2out.c (expand_builtin_init_dwarf_reg_sizes): Call this
        hook.
        * config/rs6000/rs6000.c (TARGET_INIT_DWARF_REG_SIZES_EXTRA,
        rs6000_init_dwarf_reg_sizes_extra): New.
        * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Support
        SPE register high parts.

2007-03-01  Brooks Moses  <brooks.moses@codesourcery.com>

        * Makefile.in: Add install-pdf target as
        copied from automake v1.10 rules.
        * configure.ac: Add install-pdf to target list.
        * configure: Regenerate.

2007-03-01  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_legitimate_index_p): Limit iWMMXt addressing
        modes to LDRD for DImode.
        (output_move_double): Fixup out of range ldrd/strd.
        (vfp_secondary_reload_class): Rename...
        (coproc_secondary_reload_class): ... to this.  Add wb argument.
        * config/arm/arm.h (SECONDARY_OUTPUT_RELOAD_CLASS): Use
        coproc_secondary_reload_class for CLASS_IWMMXT.
        (SECONDARY_INPUT_RELOAD_CLASS): Ditto.
        * arm-protos.h (coproc_secondary_reload_class): Update prototype.

2007-03-01  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-prefetch.c (determine_unroll_factor):  Bound the unroll
        factor by the estimated number of iterations.
        (loop_prefetch_arrays): Do not prefetch in loops that iterate less than
        prefetch latency.

        * config/i386/driver-i386.c (describe_cache, detect_caches_amd,
        decode_caches_intel, detect_caches_intel): New functions.
        (host_detect_local_cpu): Use detect_caches_amd and
        detect_caches_intel.

2007-03-01  Richard Henderson  <rth@redhat.com>

        * expr.c (emit_move_complex_push): Export.
        (emit_move_complex_parts): Split out from ...
        (emit_move_complex): ... here.
        * expr.h (emit_move_complex_push, emit_move_complex_parts): Declare.
        * config/i386/i386.md (movcdi): New.

2007-03-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_modes_tieable_p): Fix typo, use also
        size of mode1 to check for tieable modes in MMX case.

2007-03-01  Richard Sandiford  <richard@codesourcery.com>

        * Makefile.in (rtlanal.o): Depend on tree.h.
        * rtl.h (offset_within_section_p, split_const): Declare.
        * rtlanal.c: Include tree.h.
        (offset_within_block_p): New function, taken from
        mips_offset_within_object_p.
        (split_const): New function, taken from mips_split_const.
        * config/m68k/m68k-protos.h (m68k_illegitimate_symbolic_constant_p):
        Declare.
        * config/m68k/m68k.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P): Define.
        (CONSTANT_ADDRESS_P): Only accept legitimate constants.
        (LEGITIMATE_CONSTANT_P): Check m68k_illegitimate_symbolic_constant_p.
        * config/m68k/m68k.c (TARGET_CANNOT_FORCE_CONST_MEM): Define.
        (m68k_illegitimate_symbolic_constant_p): New function.
        * config/m68k/m68k.md (movsi): Remove misleading predicates.
        If M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P and the source is a
        symbolic constant that might be outside the symbol's section,
        move the symbol first and then add the offset.
        * config/m68k/uclinux.h (M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P):
        Override.
        * config/mips/mips.c (mips_split_const): Delete.
        (mips_offset_within_object_p): Delete.
        (mips_symbolic_constant_p): Use offset_within_section_p and
        split_const instead of mips_offset_within_object_p and
        mips_split_const.
        (mips_cannot_force_const_mem, mips_const_insns, mips_unspec_address)
        (mips_legitimize_const_move, print_operand_reloc)
        (mips_dangerous_for_la25_p): Use split_const instead of
        mips_split_const.

2007-02-28  Eric Christopher  <echristo@apple.com>

        * Makefile.in (install-include-dir): Don't rm -rf include.

2007-02-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30364
        * fold-const.c (fold_binary): Do not associate expressions
        with more than one variable for integer types that do not wrap.

2007-02-28  Sandra Loosemore  <sandra@codesourcery.com>

        * builtins.c (fold_builtin_call_list, fold_builtin_call_valist):
        Delete, and replace with...
        (fold_builtin_call_array): This.  Update callers to use it.
        * fold-const.c (fold_build_call_list): Delete, and replace with...
        (fold_build_call_array): This.
        (fold_build_call_list_initializer): Delete, and replace with...
        (fold_build_call_array_initializer): This.
        * tree.h: Update declarations to reflect above changes.

        * c-typeck.c (build_function_call): Store converted arguments
        in a stack-allocated array instead of building a list.
        (convert_arguments): Store arguments in the array passed in as an
        argument, and return the actual number of arguments.
        * c-format.c: (check_function_format): Pass arguments in an
        array instead of a list.
        * c-common.c (check_function_nonnull): Likewise.
        (check_function_sentinel): Likewise.
        (check_function_arguments): Likewise.
        * c-common.h: Update declarations to reflect above changes.

2007-02-28  Jan Hubicka  <jh@suse.cz>

        * predict.def (PRED_TREE_EARLY_RETURN, PRED_CONST_RETURN,
        PRED_NEGATIVE_RETURN): Update outcomes.

2007-02-28  Bernd Schmidt  <bernd.schmidt@analog.com>

        * calls.c (emit_library_call_value_1): Handle partial registers
        correctly when building up CALL_INSN_FUNCTION_USAGE.

2007-02-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa/predicates.md (move_src_operand): Allow zero for mode.
        * pa/pa.md: Fix constraints for zero CONST_DOUBLE in 64-bit DFmode
        move pattern.

2007-02-27  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30970
        * config/i386/sse.md (*mov<mode>_internal, *movv4sf_internal,
        *movv2df_internal): Enable pattern only for valid operand
        combinations.
        * config/i386/i386.c (ix86_modes_tieable_p): For SSE registers,
        tie only 128bit modes. For MMX registers, tie only 64bit modes.

2007-02-27  Mike Stump  <mrs@apple.com>

        * config/darwin-crt3.c: Avoid compilation when compiling for a
        kext multilib.

2007-02-27  Joseph Myers  <joseph@codesourcery.com>

        * Makefile.in (PREPROCESSOR_DEFINES, test-protoize-simple): Define
        FIXED_INCLUDE_DIR.
        (stmp-int-hdrs, stmp-fixinc, install-headers): Use include-fixed
        for fixed headers and limits.h.
        (install-include-dir, install-headers-tar, install-headers-cpio,
        install-headers-cp, real-install-headers-tar,
        real-install-headers-cpio, real-install-headers-cp): Handle
        include-fixed as well as include.
        (install-mkheaders): Don't install files that go only in include
        not include-fixed.
        * cppdefault.c (cpp_include_defaults): Separate FIXED_INCLUDE_DIR
        from GCC_INCLUDE_DIR.
        * gcc.c (process_command): Remove special -BstageN/ handling.
        (do_spec_1): Add include-fixed directories.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/t-bfin-elf (LIB1ASMFUNCS): Add _umulsi3_highpart and
        _smulsi3_highpart.
        * config/bfin/lib1funcs.asm (___umulsi3_highpart, ___smulsi3_highpart):
        New functions.
        * config/bfin/bfin.md (smulsi3_highpart, umulsi3_highpart): New
        patterns.

2007-02-27  Mark Mitchell  <mark@codesourcery.com>

        * c-common.c (get_priority): Add check for
        SUPPORTS_INIT_PRIORITY.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (doloop_end): FAIL if counter reg isn't SImode.

        * config/bfin/bfin.c: Include "cfglayout.h".
        (MAX_LSETUP_DISTANCE): New macro.
        (struct loop_info): New members incoming, incoming_src and
        incoming_dest.  Delete member predecessor.
        (length_for_loop): New function.
        (bfin_optimize_loop): Handle more different loop structures.
        (bfin_discover_loop): Rework detection of predecessor blocks by
        examining incoming edges.
        (bfin_discover_loops, bfin_free_loops): New functions, broken out of
        bfin_reorg_loops.
        (bfin_reorder_loops): New function.
        (bfin_reorg_loops): Use these three new functions.

        * config/bfin/bfin.h (enum reg_class, REG_CLASS_NAMES,
        REG_CLASS_CONTENTS): Add D0REGS through D7REGS.
        (CONSTRAINT_LEN): Add entry for 'q'.
        (REG_CLASS_FROM_CONSTRAINT): Renamed from REG_CLASS_FROM_LETTER.
        Add 'q' constraints.
        (REGNO_REG_CLASS): For R0 through R7, return corresponding regclass.
        (CLASS_LIKELY_SPILLED_P): True for R0, R1 and R2.

        * config/bfin/bfin.md (add_with_carry): New pattern.
        (s_or_u, su_optab, su_modifier): New code macros/attrs.
        (<su_optab>hisi_ll, <su_optab>hisi_lh, <su_optab>hisi_hl,
        <su_optab>hisi_hh): Renamed from mulhisi_xx patterns; macroized to
        support unsigned multiplies too.  Removed incorrect commutativity from
        operand 1 constraint where appropriate.
        (usmulhisi_ull, usmulhisi_ulh, usmulhisi_uhl, usmulhisi_uhh): New
        patterns.
        (<su_optab>hisi_ll_lh, <su_optab>hisi_ll_hl, <su_optab>hisi_ll_hh,
        <su_optab>hisi_lh_hl, <su_optab>hisi_lh_hh, <su_optab>hisi_hl_hh):
        New patterns.
        (usmulhisi_ll_lul, usmulhisi_ll_luh, usmulhisi_ll_hul,
        usmulhisi_ll_huh, usmulhisi_lh_lul, usmulhisi_lh_luh, usmulhisi_lh_hul,
        usmulhisi_lh_huh, usmulhisi_hl_lul, usmulhisi_hl_luh, usmulhisi_hl_hul,
        usmulhisi_hl_huh, usmulhisi_hh_lul, usmulhisi_hh_luh, usmulhisi_hh_hul,
        usmulhisi_hh_huh): New patterns.

        * config/bfin/bfin.md (ssashiftv2hi3, ssashifthi3, lshiftv2hi3,
        lshifthi3): Fix output template to use half reg for operand 2.

        * config/bfin/bfin.c (bfin_output_mi_thunk): Use R3 as scratch reg
        instead of R2.

        * config/bfin/bfin.md (rotl16, rotlsi3, rotrsi3): New patterns.

2007-02-27  Andreas Schwab  <schwab@suse.de>

        * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-common.texi.

2007-02-27  Jan Hubicka  <jh@suse.cz>

        * predict.c (last_basic_block_p): Remove.
        (tree_estimate_probability): Update return heuristic for commonized
        return blocks.

2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>

        * Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-vers.texi dependency.

2007-02-26  Brooks Moses  <brooks.moses@codesourcery.com>

        * doc/include/gcc-common.texi (versionsubtitle): New macro.
        * doc/cpp.texi: Standardize title page.
        * doc/cppinternals.texi: Likewise.
        * doc/gcc.texi: Standardize title page, remove version number
        from copyright page.
        * doc/gccint.texi: Likewise.
        * doc/install.texi: Standardize title page, add table of
        contents.

2007-02-26  Jan Hubicka  <jh@suse.cz>

        * predict.def: Set outcomes according to more recent results.
        (PRED_LOOP_CONDITION, PRED_LOOP_PRECONDITIONING, PRED_LOOP_HEADER):
        Remove dead predictors.
        * predict.c (return_prediction): Fix pasto.

2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>

        * loop-iv.c (simplify_using_initial_values): Fix oversight in previous
        change; avoid a memory leak when returning early.

2007-02-26  Mark Mitchell  <mark@codesourcery.com>

        * c-decl.c (static_ctors): Move to c-common.c.
        (static_dtors): Likewise.
        (finish_function): Use c_record_cdtor_fn.
        (build_cdtor): Move to c-common.c.
        (c_write_global_declarations): Use c_build_cdtor_fns.
        * c-common.h (static_ctors): Declare.
        (static_dtors): Likewise.
        (c_record_cdtor_fn): Likewise.
        (c_build_cdtor_fns): Likewise.
        * c-common.c (static_ctors): New variable.
        (static_dtors): Likewise.
        (c_record_cdtor_fn): New function.
        (build_cdtor): Move from c-decl.c
        (c_build_cdtor_fns): New function.

        * output.h (assemble_addr_to_section): Declare.
        (get_cdtor_priority_section): Likewise.
        * varasm.c (assemble_addr_to_section): New function.
        (get_cdtor_priority_section): Likewise.
        (default_named_section_asm_out_destructor): Use them.
        (destor_dtor_section_asm_out_destructor): Likewise.
        (default_named_section_asm_out_constructor): Likewise.
        (default_ctor_section_asm_out_constructor): Likewise.
        * config.gcc (*-*-vxworks*): Include vxworks.o.
        * config/t-vxworks (vxworks.o): New target.
        * config/vxworks.h (ALWAYS_NUMBER_CTORS_SECTIONS): Remove.
        (TARGET_ASM_CONSTRUCTOR): Define.
        (TARGET_ASM_DESTRUCTOR): Likewise.
        (vxworks_asm_out_constructor): Declare.
        (vxworks_asm_out_destructor): Likewise.

        * c-common.c (get_priority): Check that we have not just an
        INTEGER_CST, but an integer constant with integeral type.

2007-02-25  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/30938
        * tree-vect-transform.c (vectorizable_call): Fix off-by-one error:
        use &dt[nargs-1] instead of &dt[nargs] in the call to
        vect_is_simple_use().

2007-02-25  Ulrich Weigand  <uweigand@de.ibm.com>

        * reload.c (find_reloads_address_1): Handle PLUS expressions resulting
        from register elimination as PRE_MODIFY / POST_MODIFY increments.
        Do not attempt to handle MEM inside auto-inc expressions.
        * reload1.c (eliminate_regs_1): Do not attempt to handle elimination
        of a register modified by an auto-inc expression.  However, do handle
        elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
        (elimination_effects): Prohibit elimination of a register modified
        by an auto-inc expression.  Disable register elimination rules whose
        target register is modified by an auto-inc expression with variable
        increment.

2007-02-25  Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-ssa-loop-niter.c (compute_estimated_nb_iterations): Fix
        off-by-one error.
        (array_at_struct_end_p): New function.
        (idx_infer_loop_bounds): Use it.
        (estimate_numbers_of_iterations_loop): Export.
        * predict.c (predict_loops): Use estimated_loop_iterations_int.
        Do not use PRED_LOOP_EXIT on exits predicted by # of iterations.
        (tree_estimate_probability): Call record_loop_exits.
        * tree-data-ref.c (get_number_of_iters_for_loop): Replaced by ...
        (estimated_loop_iterations, estimated_loop_iterations_int,
        estimated_loop_iterations_tree): New functions.
        (analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_1_2,
        analyze_subscript_affine_affine): Use estimated_loop_iterations_int.
        (analyze_miv_subscript): Use estimated_loop_iterations_tree.
        * predict.def (PRED_LOOP_ITERATIONS): Update comment.
        (PRED_LOOP_ITERATIONS_GUESSED): New.
        * cfgloop.c (record_loop_exits): Do nothing if there are no loops.
        * cfgloop.h (estimate_numbers_of_iterations_loop,
        estimated_loop_iterations_int): Declare.

2007-02-25  Mark Mitchell  <mark@codesourcery.com>

        * doc/extend.texi: Document optional priority argument to
        constructors and destructors.
        * tree.c (init_priority_for_decl): Adjust GTY markers.
        (init_ttree): Use priority-info hash functions for
        init_priority_for_decl.
        (tree_map_eq): Rename to ...
        (tree_map_base_eq): ... this.
        (tree_map_marked_p): Rename to ...
        (tree_map_base_marked_p): ... this.
        (tree_map_base_hash): New function.
        (decl_init_priority_lookup): Rework.
        (decl_fini_priority_lookup): New function.
        (decl_priority_info): New function.
        (decl_init_priority_insert): Use it.
        (decl_fini_priority_insert): Likewise.
        (decl_restrict_base_lookup): Adjust for refactoring of tree_map
        hierarchy.
        (decl_restrict_base_insert): Likewise.
        (decl_debug_expr_insert): Likewise.
        (decl_value_expr_lookup): Likewise.
        (decl_value_expr_insert): Likewise.
        * tree.h (priority_type): New type.
        (decl_init_priority_lookup): Use priority_type.
        (decl_fini_priority_lookup): New function.
        (decl_init_priority_insert): Use priority_type.
        (decl_fini_priority_insert): New function.
        (DECL_HAS_INIT_PRIORITY): Tweak comments.
        (DECL_INIT_PRIORITY): Likewise.
        (SET_DECL_INIT_PRIORITY): Add comment.
        (DECL_FINI_PRIORITY): New macro.
        (SET_DECL_FINI_PRIORITY): Likewise.
        (DEFAULT_INIT_PRIORITY): Document.
        (MAX_INIT_PRIORITY): Likewise.
        (MAX_RESERVED_INIT_PRIORITY): Likewise.
        (tree_map_base): New type.
        (tree_map_base_eq): New function.
        (tree_map_base_hash): Likewise.
        (tree_map_base_marked_p): Likewise.
        (tree_map): Inherit from tree_map_base.
        (tree_map_eq): Make it a macro.
        (tree_map_marked_p): Likewise.
        (tree_int_map): Inherit from tree_map_base.
        (tree_int_map_eq): Make it a macro.
        (tree_int_map_hash): Likewise.
        (tree_int_map_marked_p): Likewise.
        (tree_priority_map): New type.
        (tree_priority_map_eq): New macro.
        (tree_priority_map_hash): Likewise.
        (tree_priority_map_marked_p): Likewise.
        * varasm.c (emults_decl): Adjust for refactoring of tree_map
        hierarchy.
        (emutls_common_1): Likewise.
        * lambda-code.c (replace_uses_equiv_to_x_with_y): Likewise.
        * tree-ssa-structalias.c (heapvar_lookup): Adjust for refactoring
        of tree_map hierarchy.
        * tree-cfg.c (move_stmt_r): Likewise.
        (new_label_mapper): Likewise.
        * c-tree.h (c_expand_body): Move to ...
        * c-common.h (c_expand_body): ... here.
        * c-decl.c (c_expand_body): Move to ...
        * c-common.c (c_expand_body): ... here.
        (c_common_attribute_table): Allow 1 argument for the constructor
        and destructor attributes.
        (get_priority): New function.
        (handle_constructor_attribute): Set DECL_INIT_PRIORITY.
        (handle_destructor_attribute): Set DECL_FINI_PRIORITY.

2007-02-24  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30509
        * tree-inline.c (copy_bb): Produce exact copy of EH info when copying for inlining.

2007-02-24  Uros Bizjak  <ubizjak@gmail.com>
            Jan Hubicka  <jh@suse.cz>

        PR target/30778
        * i386.c (counter_mode): New function.
        (expand_set_or_movmem_via_loop): Use it.
        (expand_movmem_epilogue): Likewise; fix pasto.
        (ix86_expand_movmem): Do emit guard even for constant counts.
        (ix86_expand_setmem): Likewise.

2007-02-25  Nick Clifton  <nickc@redhat.com>

        * config/frv/frv.h (ASM_OUTPUT_CASE_LABEL): Delete.
        (JUMP_TABLES_IN_TEXT_SECTION): Define.

2007-02-24  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30770
        * config/i386/i386.md (expand_movmem_epilogue): Fix typo, mask
        count argument with 0x10, not with 0x16.
        (expand_setmem_epilogue): Ditto.

2007-02-24  Mike Stump  <mrs@apple.com>

        * config/i386/i386.c (output_pic_addr_const): Stubify optimized
        symbols.

2007-02-24  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30951
        * fold-const.c (fold_binary): Fold x +- CST op x for
        EQ_EXPR and NE_EXPR.

2007-02-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (muldi3): Force subregs to registers in 64-bit expander.

2007-02-24  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (decide_is_function_needed): Honor
        -fkeep-inline-functions.

2007-02-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_modf): New.
        (fold_builtin_2): Use it.

2007-02-24  Bernd Schmidt  <bernd.schmidt@analog.com>

        * loop-iv.c (implies_p): Detect additional cases where A implies B.
        (determine_max_iter): Take additional LOOP arg; all callers changed.
        Lose broken logic dealing with PLUS.  Try to limit the upper bound by
        one using simplifications.
        (simplify_using_initial_values): Return if the expression becomes
        invalid due to altered regs.

2007-02-23  DJ Delorie  <dj@redhat.com>

        * doc/tm.h (BIGGEST_ALIGNMENT): Clarify the purpose of this macro.

2007-02-23  Mike Stump  <mrs@apple.com>

        * tlink.c (scan_linker_output): Parse linker messages from
        darwin9's linker better.

2007-02-23  Steve Ellcey  <sje@cup.hp.com>

        PR debug/29614
        * varpool.c (varpool_assemble_pending_decls):  Set
        varpool_last_needed_node to null.

2007-02-23  DJ Delorie  <dj@redhat.com>

        * config/i386/i386.c (ix86_data_alignment): Don't specify an
        alignment bigger than the object file can handle.

2007-02-23  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30825
        * config/i386/i386.md (*movdi_1_rex64, zero_extendsidi2_32,
        zero_extendsidi2_rex64): Penalize MMX register<->memory moves.
        (*movsf_1): Penalize MMX moves.

2007-02-23  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/bfin.md (doloop_end): Fail for loops that can iterate
        2^32-1 or more times unless flag_unsafe_loop_optimizations.

        * loop-iv.c (determine_max_iter): Moved in front of its sole user.

2007-02-23  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_logb, fold_builtin_significand): New.
        (fold_builtin_1): Use them.
        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle
        BUILT_IN_SIGNIFICAND.

2007-02-23  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (bdesc_1arg): Initialize
        IX86_BUILTIN_MOVSHDUP and IX86_BUILTIN_MOVSLDUP with
        "__builtin_ia32_movshdup" and "__builtin_ia32_movsldup".
        (ix86_init_mmx_sse_builtins): Remove IX86_BUILTIN_MOVSHDUP
        and IX86_BUILTIN_MOVSLDUP.

2007-02-22  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/30841
        * fwprop.c (propagate_rtx_1): Accept a VOIDmode replacement address.

2007-02-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_frexp): New.
        (fold_builtin_2): Use it.

2007-02-22  Mark Mitchell  <mark@codesourcery.com>

        * doc/invoke.texi (Spec Files): Document getenv spec function.

        * gcc.c (getenv_spec_function): New function.
        (static_spec_functions): Add it.
        * config/vxworks.h (VXWORKS_TARGET_DIR): Remove.
        (VXWORKS_ADDITIONAL_CPP_SPEC): Use getenv to find the VxWorks
        header files.

2007-02-22  Michael Matz  <matz@suse.de

        PR c++/29433
        * dwarf2out.c (add_AT_string): Call ggc_strdup once per string.
        (type_tag): Use lang_hooks.dwarf_name instead of DECL_NAME.

2007-02-22  Ian Lance Taylor  <iant@google.com>

        PR debug/30898
        * dwarf2out.c (concatn_mem_loc_descriptor): New static function.
        (mem_loc_descriptor): Call it.

2007-02-22  Zdenek Dvorak  <dvorakz@suse.cz>
            Ira Rosen  <irar@il.ibm.com>

        * tree-data-ref.c (ptr_ptr_may_alias_p): Take alias sets into account.

2007-02-22  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/30843
        * tree-vect-transform.c (vect_transform_loop): Remove strided scalar
        stores only after all the group is vectorized.

2007-02-22  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30858
        * tree-vectorizer.c (vect_is_simple_reduction): Check that the stmts
        in the reduction cycle have a single use in the loop.
        * tree-vectorizer.h (relevant): Add documentation.

2007-02-20  Mike Stump  <mrs@apple.com>

        * configure.ac (powerpc*-*-darwin*): #include <sys/cdefs.h>.
        * configure: Regenerate.

2007-02-21  Trevor Smigiel  <trevor_smigiel@playstation.sony.com>

        Change the defaults of some parameters and options.
        * config/spu/spu-protos.h (spu_optimization_options): Declare.
        * config/spu/spu.c (spu_optimization_options): Add.
        (spu_override_options): Change params in spu_optimization_options.
        * config/spu/spu.h (OPTIMIZATION_OPTIONS): Define.

        Register 127 is only 16 byte aligned when used as a frame pointer.
        * config/spu/spu-protos.h (spu_init_expanders): Declare.
        * config/spu/spu.c (spu_expand_prologue): Set REGNO_POINTER_ALIGN for
        HARD_FRAME_POINTER_REGNUM.
        (spu_legitimate_address):  Use regno_aligned_for_reload.
        (regno_aligned_for_load):  HARD_FRAME_POINTER_REGNUM is only 16 byte
        aligned when frame_pointer_needed is true.
        (spu_init_expanders): New.  Set alignment of HARD_FRAME_POINTER_REGNUM
        to 8 bits.
        * config/spu/spu.h (INIT_EXPANDERS): Define.

        Make sure shift and rotate instructions have valid immediate operands.
        * config/spu/predicates.md (spu_shift_operand): Remove.
        * config/spu/spu.c (print_operand): Add [efghEFGH] modifiers.
        * config/spu/constraints.md (W, O): Extend range.
        * config/spu/spu.md (umask, nmask): Define.
        (ashl<mode>3, ashldi3, ashlti3_imm, shlqbybi_ti, shlqbi_ti, shlqby_ti,
        lshr<mode>3, rotm_<mode>, lshr<mode>3_imm, rotqmbybi_<mode>,
        rotqmbi_<mode>, rotqmby_<mode>, ashr<mode>3, rotma_<mode>,
        rotl<mode>3, rotlti3, rotqbybi_ti, rotqby_ti, rotqbi_ti): Use
        spu_nonmem_operand instead of spu_shift_operands.  Use new modifiers.
        (lshr<mode>3_reg):  Fix rtl description.

        Make sure mulhisi immediate operands are valid.
        * config/spu/predicates.md (imm_K_operand): Add.
        * config/spu/spu.md (mulhisi3_imm, umulhisi3_imm): Use imm_K_operand.

        Generate constants using fsmbi and andi.
        * config/spu/spu.c (enum immediate_class): Add IC_FSMBI2.
        (print_operand, spu_split_immediate, classify_immediate,
        fsmbi_const_p): Handle IC_FSMBI2.

        Correctly handle a CONST_VECTOR containing symbols.
        * config/spu/spu.c (print_operand): Handle HIGH correctly.
        (spu_split_immediate): Split CONST_VECTORs with -mlarge-mem.
        (immediate_load_p): Allow symbols that use 2 instructions to create.
        (classify_immediate, spu_builtin_splats):  Don't accept a CONST_VECTOR
        with symbols when flag_pic is set.
        (const_vector_immediate_p): New.
        (logical_immediate_p, iohl_immediate_p, arith_immediate_p): Don't
        accept a CONST_VECTOR with symbols.
        (spu_legitimate_constant_p): Use const_vector_immediate_p.  Don't
        accept a CONST_VECTOR with symbols when flag_pic is set.  Handle HIGH
        correctly.
        * config/spu/spu.md (high, low): Delete.
        (low_<mode>): Define.

        Remove INTRmode and INTR_REGNUM, which didn't work.
        * config/spu/spu.c (spu_conditional_register_usage): Remove reference
        of INTR_REGNUM.
        * config/spu/spu-builtins.md (spu_idisable, spu_ienable, set_intr,
        set_intr_pic, set_intr_cc, set_intr_cc_pic, set_intr_return, unnamed
        peephole2 pattern): Don't use INTR or 131.
        (movintrcc): Delete.
        * config/spu/spu.h (FIRST_PSEUDO_REGISTER, FIXED_REGISTERS,
        CALL_USED_REGISTERS, REGISTER_NAMES, INTR_REGNUM): Remove INTR_REGNUM.
        * config/spu/spu.md (UNSPEC_IDISABLE, UNSPEC_IENABLE): Remove.
        (UNSPEC_SET_INTR): Add.
        * config/spu/spu-modes.def (INTR): Remove.

        More accurate warnings about run-time relocations.
        * config/spu/spu.c (reloc_diagnostic): Test in_section.

        Correctly warn about immediate arguments to specific intrinsics.
        * config/spu/spu.c (spu_check_builtin_parm): Handle CONST_VECTORs.
        (spu_expand_builtin_1): Call spu_check_builtin_parm before checking
        the instruction predicate.

        Fix tree check errors with latest update.
        * config/spu/spu.c (expand_builtin_args, spu_expand_builtin_1): Use
        CALL_EXPR_ARG.
        (spu_expand_builtin): Use CALL_EXPR_FN.

        Add missing specific intrinsics.
        * config/spu/spu-builtins.def: Add si_bisled, si_bisledd and
        si_bislede.
        * config/spu/spu_internals.h: Ditto.

        Fix incorrect operand modifiers.
        * config/spu/spu-builtins.md (spu_mpy, spu_mpyu):  Remove use of %H.
        * config/spu/spu.md (xor<mode>3):  Change %S to %J.

        Optimize one case of zero_extend of a vec_select.
        * config/spu/spu.md (_vec_extractv8hi_ze):  Add.

        Accept any immediate for hbr.
        * config/spu/spu.md (hbr):  Change s constraints to i.

2007-02-21  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (thumb2_final_prescan_insn): Don't incrememnt
        condexec_count when skipping USE and CLOBBER.

2007-02-21  Nick Clifton  <nickc@redhat.com>

        * common.opt (Warray-bounds): Add Warning attribute.
        (Wstrict-overflow, Wstrict-overflow=, Wcoverage-mismatch):
        Likewise.
        (fsized-zeroes): Add Optimization attribute.
        (fsplit-wide-types, ftree-scev-cprop): Likewise.
        * c.opt (Wc++0x-compat): Add Warning attribute.

2007-02-21  Ulrich Weigand  <uweigand@de.ibm.com>

        PR middle-end/30761
        * reload1.c (eliminate_regs_in_insn): In the single_set special
        case, attempt to re-recognize the insn before falling back to
        having reload fix it up.

2007-02-20  Eric Christopher  <echristo@gmail.com>

        * config/frv/frv.c (frv_read_argument): Take a tree and int argument.
        Rewrite accordingly.
        (frv_read_iacc_argument): Ditto.
        (frv_expand_set_builtin): Take a call instead of arglist, update for
        above changes.
        (frv_expand_unop_builtin): Ditto.
        (frv_expand_binop_builtin): Ditto.
        (frv_expand_cut_builtin): Ditto.
        (frv_expand_binopimm_builtin): Ditto.
        (frv_expand_voidbinop_builtin): Ditto.
        (frv_expand_int_void2arg): Ditto.
        (frv_expand_prefetches): Ditto.
        (frv_expand_voidtriop_builtin): Ditto.
        (frv_expand_voidaccop_builtin): Ditto.
        (frv_expand_load_builtin): Ditto.
        (frv_expand_store_builtin): Ditto.
        (frv_expand_mdpackh_builtin): Ditto.
        (frv_expand_mclracc_builtin): Ditto.
        (frv_expand_mrdacc_builtin): Ditto.
        (frv_expand_mwtacc_builtin): Ditto.
        (frv_expand_builtin): Remove usage of CALL_EXPR_ARGS, update
        calls for above.

2007-02-20  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (RS/6000 and PowerPC Options): Add -mcmpb and -mdfp.
        * configure.ac (HAVE_GAS_CMPB): Check for assembler support of the
        cmpb instruction.
        (HAVE_GAS_DFP): Check for assembler support of decimal floating
        point instructions.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/rs6000/rs6000.opt (mcmpb, mdfp): New.
        * config/rs6000/rs6000.c (rs6000_override_options): Add CMPB and DFP
        masks to power6 and power6x and to POWERPC_MASKS.
        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        _ARCH_PWR6.
        * config/rs6000/rs6000.h: Check assembler support for CMPB and DFP.
        * config/rs6000/sysv4.opt (mprototype): Use variable, not mask.
        * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
        Access PROTOTYPE as variable, not mask.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtl.h (remove_reg_equal_equiv_notes): New prototype.
        * rtlanal.c (remove_reg_equal_equiv_notes): New function.
        * combine.c (adjust_for_new_dest): Use it.
        * postreload.c (reload_combine): Likewise.

2007-02-20  Steven Bosscher  <steven@gcc.gnu.org>

        * rtlanal.c (find_reg_equal_equiv_note): Do not find REG_EQ*
        notes on an insn with multiple sets, even if single_set returns
        non-NULL for that insn.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (tree_expr_nonnegative_warnv_p): Handle scalb,
        scalbn and scalbln.

2007-02-20  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Default -mmacosx-version-min only
        if user didn't pass it.
        * config/i386/darwin.h (CC1_SPEC): Likewise.
        * config/rs6000/darwin.h (CC1_SPEC): Likewise.
        (DARWIN_MINVERSION_SPEC): Don't depend on user's setting of
        -mmacosx-version-min.

2007-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
            Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_scalb.
        (scalb_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize scalb_optab.
        * genopinit.c (optabs): Implement scalb_optab using scalb?f3
        patterns.
        * builtins.c (expand_builtin_mathfn_2, expand_builtin): Handle
        BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L} and BUILT_IN_SCALBLN{,F,L}.
        (expand_builtin): Expand BUILT_IN_SCALB{,F,L}, BUILT_IN_SCALBN{,F,L}
        and BUILT_IN_SCALBLN{,F,L} using expand_builtin_mathfn_2 if
        flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (scalbxf3, scalb<mode>3): New expanders
        to implement scalbf, scalb and scalbl built-ins as inline x87
        intrinsics.

2007-02-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
            DJ Delorie <dj@redhat.com>

        PR other/30824
        * diagnostic.c (diagnostic_count_diagnostic): Move -Werror logic to...
        (diagnostic_report_diagnostic): ... here, and turn them into real
        errors. If warnings are inhibited, no need to do anything.

2007-02-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (expm1xf2): Reorder insn sequence for
        better code generation.

2007-02-20  Ben Elliston  <bje@au.ibm.com>

        * config/m68hc11/m68hc11.h (OVERRIDE_OPTIONS): Remove extra ;.

2007-02-20  Kazu Hirata  <kazu@codesourcery.com>

        * config/alpha/alpha.c, config/alpha/alpha.md,
        config/alpha/lib1funcs.asm, config/alpha/vms-crt0-64.c,
        config/alpha/vms-psxcrt0-64.c, config/arc/arc.c,
        config/arc/arc.h, config/arm/arm.c, config/arm/arm.md,
        config/arm/lib1funcs.asm: Follow spelling conventions.

        * config/c4x/c4x.md, config/cris/cris.c, config/crx/crx.c,
        config/fr30/fr30.md, config/i386/i386.h,
        config/iq2000/iq2000.h, config/iq2000/predicates.md,
        config/pa/milli64.S, config/pa/pa.c, config/pa/pa.h,
        config/pa/pa.md, config/pa/pa32-regs.h, config/pa/pa64-regs.h,
        config/pdp11/pdp11.c, config/pdp11/pdp11.h,
        config/rs6000/altivec.md, config/rs6000/rs6000.c,
        config/s390/s390-modes.def, config/sparc/netbsd-elf.h,
        config/sparc/sparc.c, config/sparc/sparc.h,
        config/sparc/sparc.md, config/spu/constraints.md,
        config/spu/spu.c, config/stormy16/stormy16.md: Follow spelling
        conventions.

2007-02-20  Alan Modra  <amodra@bigpond.net.au>

        PR target/29943
        * varasm.c (use_blocks_for_decl_p): Return false for decls with
        alias attribute.

2007-02-19  Kazu Hirata  <kazu@codesourcery.com>

        * doc/invoke.texi (-ftree-lrs): Remove.

2007-02-19  Diego Novillo  <dnovillo@redhat.com>

        * tree-ssa-pre.c (create_value_expr_from): Initialize POOL to
        NULL.

2007-02-19  Lee Millward  <lee.millward@codesourcery.com>

        * config/ia64/ia64.c (ia64_expand_builtin): Use the
        new CALL_EXPR_FN macro for retrieving the function
        declaration of the input expression.

2007-02-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c.opt (Waddress): New.
        * common.opt (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/invoke.texi (Warning Options): Delete -Walways-true and
        -Wstring-literal-comparison. Add -Waddress.
        (Waddress): New.
        (Walways-true): Delete.
        (Wstring-literal-comparison): Delete.
        * doc/extend.texi (#pragma GCC diagnostic): Use -Wformat
        consistently instead of -Walways-true in example.
        * c-opts.c (c_common_handle_option): -Waddress is enabled by -Wall.
        * c-typeck.c (parser_build_binary_op): Replace
        -Wstring-literal-comparison and -Walways-true with -Waddress.
        * c-common.c (c_common_truthvalue_conversion): Replace -Walways-true
        with -Waddress.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-cfg.c (dump_function_to_file): Be prepared for functions
        without DECL_STRUCT_FUNCTION initialized.

2007-02-19  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_init_ctor_preeval_1): Detect potential overlap
        due to calls to functions taking pointers as parameters.

2007-02-19  Richard Henderson  <rth@redhat.com>

        PR debug/29558
        * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
        in memory.

2007-02-19  Andreas Krebbel  <krebbel1@de.ibm.com>

        * config/s390/s390.c (s390_call_saved_register_used,
        s390_function_ok_for_sibcall): Adjust the way CALL_EXPR arguments are
        accessed to the new scheme.

2007-02-19  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

        * config/cris/cris.c (cris_movem_load_rest_p, cris_store_multiple_op_p)
        (cris_print_index, cris_print_operand, cris_print_operand_address)
        (cris_reload_address_legitimized, cris_rtx_costs, cris_address_cost)
        (cris_side_effect_mode_ok, cris_valid_pic_const, cris_split_movdx)
        (cris_expand_pic_call_address): Use xxx_P predicate macros instead of
        GET_CODE () == xxx.
        * config/cris/cris.h (SECONDARY_RELOAD_CLASS, EXTRA_CONSTRAINT_Q,
        EXTRA_CONSTRAINT_T, BDAP_INDEX_P, BIAP_INDEX_P, SIMPLE_ADDRESS_P,
        GO_IF_LEGITIMATE_ADDRESS): Ditto.
        * config/cris/cris.md (define_insns: *btst, movdi, *mov_side<mode>)
        (*mov_sidesisf, *mov_side<mode>_mem, *mov_sidesisf_mem)
        (*clear_side<mode>, movsi, *movsi_internal, *ext_sideqihi)
        (*ext_side<mode>si, *op_side<mode>, *op_swap_side<mode>, addsi3)
        (*extopqihi_side, *extop<mode>si_side, *extopqihi_swap_side)
        (*extop<mode>si_swap_side, addi_mul, *addi,andsi3, andhi3, ashl<mode>3)
        (uminsi3, call, call_value): Ditto.
        (define_split: indir_to_reg_split, unnamed): Ditto.

2007-02-19  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/30975
        * tree-vect-trasnform.c (vect_get_vec_def_for_stmt_copy): Remove
        wrong assert.

2007-02-18  Eric Christopher  <echristo@gmail.com>

        * mips.c (mips_prepare_builtin_arg): Add argnum parameter.
        Remove use of arglist.
        (mips_expand_builtin): Remove use of arglist, pass in expr.
        (mips_expand_builtin_direct): Rewrite handling for arglist removal.
        (mips_expand_builtin_movtf): Ditto.
        (mips_expand_builtin_compare): Ditto.

2007-02-19  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (sra_build_assignment): Replace assertion
        checking with a comment explaining why it can't be done.

2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        PR middle-end/30833
        * tree-dump.c (dequeue_and_dump): Add tcc_vl_exp case missed
        during CALL_EXPR representation conversion.
        * tree-ssa-propagate.c (set_rhs): Likewise.

2007-02-19  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (sra_build_assignment): Disable assertion checking
        for now.

2007-02-18  Roger Sayle  <roger@eyesopen.com>

        * function.c (gimplify_parameters): Call build_gimple_modify_stmt
        instead of calling build2 with a GIMPLE_MODIFY_STMT.
        * gimple-low.c (lower_function_body, lower_builtin_setjmp):
        Likewise.
        * gimplify.c (build_stack_save_restore, gimplify_return_expr,
        gimplify_decl_expr,  gimplify_self_mod_expr, gimplify_cond_expr,
        gimplify_init_ctor_eval_range, gimple_push_cleanup,
        gimplify_omp_for, gimplify_omp_atomic_pipeline,
        gimplify_omp_atomic_mutex, gimplify_expr, gimplify_one_sizepos,
        force_gimple_operand): Likewise.
        * ipa-cp.c (constant_val_insert): Likewise.
        * lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
        lambda_loopnest_to_gcc_loopnest, replace_uses_equiv_to_x_with_y,
        perfect_nestify): Likewise.
        * langhooks.c (lhd_omp_assignment): Likewise.
        * omp-low.c (lower_rec_input_clauses, lower_reduction_clauses,
        lower_copyprivate_clauses, lower_send_clauses,
        lower_send_shared_vars, expand_parallel_call,
        expand_omp_for_generic, expand_omp_for_static_nochunk,
        expand_omp_for_static_chunk, expand_omp_sections,
        lower_omp_single_copy, lower_omp_for_lastprivate,
        lower_omp_parallel, init_tmp_var, save_tmp_var): Likewise.
        * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
        tree_mod_subtract, tree_ic, tree_stringop_fixed_value):
        Likewise.

2007-02-19  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/divtab.c, config/sh/sh.c, config/sh/sh.h,
        config/sh/sh.md: Follow spelling conventions.

        * config/frv/frv.c, config/frv/frv.h, config/frv/frv.md,
        config/frv/predicates.md: Follow spelling conventions.

        * config/m68k/linux-unwind.h: Fix a comment typo.
        * target.h: Follow spelling conventions.

2007-02-18  Roger Sayle  <roger@eyesopen.com>

        PR rtl-optimization/28173
        * simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
        (X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
        Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
        Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
        <AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).

2007-02-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_load_exponent): New.
        (fold_builtin_2): Use it.

2007-02-18  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/30773
        * local-alloc.c (update_equiv_regs): Do not set reg_equiv_init
        if we fail to attach a REG_EQUIV note.

2007-02-18  David Edelsohn  <edelsohn@gnu.org>
            Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.

2007-02-18  Sandra Loosemore  <sandra@codesourcery.com>

        * calls.c (initialize_argument_information): Pass original EXP
        and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments.  Move
        code to split complex arguments here, as part of initializing the
        ARGS array.
        (expand_call): Remove code that builds a list of arguments and
        inserts implicit arguments into it.  Instead, just count how many
        implicit arguments there will be so we can determine the size of
        the ARGS array, and let initialize_argument_information do the work.
        (split_complex_values): Delete unused function.

2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.

2007-02-18  Eric Botcazou  <ebotcazou@adacore.com>

        * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
        for arg pointer based indexed addressing.

2007-02-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/ia64/ia64.h, config/ia64/ia64.md,
        config/ia64/predicates.md, config/ia64/sysv4.h: Follow
        spelling conventions.

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/m68k.c (split_di): New.
        * config/m68k/m68k-protos.h: Declare split_di.
        * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
          Improve predicate handling and split constant shifts.

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
        parameter for register bitfield operations, general predicates
        cleanup

2007-02-18  Roman Zippel <zippel@linux-m68k.org>

        * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
        * config/m68k/linux-unwind.h: New file.

2007-02-18  Kazu Hirata  <kazu@codesourcery.com>

        * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
        config/i386/athlon.md, config/ia64/ia64.md,
        config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
        df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
        ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
        tree-ssa-loop-niter.c, tree-vect-analyze.c,
        tree-vect-transform.c: Fix comment typos.

2007-02-17  Kazu Hirata  <kazu@codesourcery.com>

        * sched-deps.c (find_insn_list): Remove.
        * sched-int.h: Remove the prototype for find_insn_list.

2007-02-16  Geoffrey Keating  <geoffk@apple.com>

        * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
        to linker.
        (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
        darwin_rs6000_override_options.
        (C_COMMON_OVERRIDE_OPTIONS): Expect
        darwin_macosx_version_min to be non-NULL always.
        (TARGET_C99_FUNCTIONS): Likewise.
        (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
        (DARWIN_MINVERSION_SPEC): New.
        * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
        * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
        to cc1*.
        (DARWIN_MINVERSION_SPEC): New.
        * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
        value.
        * config/darwin-c.c (darwin_cpp_builtins): Expect
        darwin_macosx_version_min to be non-NULL always.

        * config/rs6000/rs6000.c: Clean up trailing whitespace.

2007-02-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.h (x86_use_xchgb): New.
        (TARGET_USE_XCHGB): New macro.
        * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
        * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
        Split after reload into bswaphi for shifts of 8.
        (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
        (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
        or when optimizing for size.

2007-02-16  Richard Guenther  <rguenther@suse.de>
            Christian Bruel  <christian.bruel@st.com>

        * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
        DECLs but prefer SSA_NAMEs over DECLs.

2007-02-16  Richard Guenther  <rguenther@suse.de>

        * tree-flow-inline.h (single_imm_use_p): Remove.
        (zero_imm_uses_p): Likewise.
        * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
        instead of single_imm_use_p.
        * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
        zero_imm_uses_p.

2007-02-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR other/27843
        * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
        nested double- and backquotes.

2007-02-15  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/30391
        * tree.c (expr_align): Handle MODIFY_EXPR.  GIMPLE_MODIFY_STMT
        should be unreachable.
        (build2_stat): Allow construction of MODIFY_EXPR at any time.
        For the time being redirect GIMPLE_MODIFY_STMT to the new
        (renamed) build_gimple_modify_stmt_stat.
        (build2_gimple_stat): Rename to...
        (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
        Always build a GIMPLE_MODIFY_STMT node.
        * tree.h (build2_gimple, build2_gimple_stat): Delete.
        (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
        declarations.

        * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
        gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
        * tree-complex.c (set_component_ssa_name, expand_complex_move,
        expand_complex_div_wide): Likewise.
        * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
        * tree-ssa-loop-im.c (schedule_sm): Likewise.
        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
        * tree-ssa-loop-manip.c (create_iv): Likewise.
        * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
        abs_replacement): Likewise.
        * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
        realify_fake_stores): Likewise.

        * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
        node rather than a GIMPLE_MODIFY_STMT node.
        (std_gimpify_va_arg_expr, expand_builtin_va_copy,
        fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
        Likewise.
        (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
        * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
        GIMPLE_MODIFY_STMT.

2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30433
        * fold-const.c (fold_comparison): Add back the
        folding of constant complex comparisions.

2007-02-15  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30729
        * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
        effects unknown to this function, return early.

2007-02-15  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (move_eh_region_note): New static function.
        (resolve_simple_move): Call it.
        (decompose_multiword_subregs): Track blocks for which we resolve a
        simple move which is also a control flow insn.  Pass them to
        find_many_sub_basic_blocks.
        (pass_lower_subreg): Add TODO_verify_flow.
        (pass_lower_subreg2): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * tree.h (enum tree_code_class): Add tcc_vl_exp.
        (VL_EXP_CLASS_P): New.
        (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (TREE_OPERAND_CHECK_CODE): Likewise.
        (GIMPLE_STMT_OPERAND_CHECK): Likewise.
        (TREE_RTL_OPERAND_CHECK): Likewise.
        (tree_operand_check_failed): Make second parameter the whole tree
        instead of its code.  Fixed callers.
        (VL_EXP_CHECK): New.
        (TREE_OPERAND_LENGTH): New.
        (VL_EXP_OPERAND_LENGTH): New.
        (CALL_EXPR_FN): New.
        (CALL_EXPR_STATIC_CHAIN): New.
        (CALL_EXPR_ARGS): New.
        (CALL_EXPR_ARG): New.
        (call_expr_nargs): New.
        (CALL_EXPR_ARGP): New.
        (build_nt_call_list): Declare.
        (build_vl_exp_stat): Declare.
        (build_vl_exp): New.
        (build_call_list): Declare.
        (build_call_nary): Declare.
        (build_call_valist): Declare.
        (build_call_array): Declare.
        (call_expr_arg): Declare.
        (call_expr_argp): Declare.
        (call_expr_arglist): Declare.
        (fold_build_call_list): Declare.
        (fold_build_call_list_initializer): Declare.
        (fold_call_expr): Declare to replace fold_builtin.
        (fold_builtin_fputs): Update to agree with modified definition.
        (fold_builtin_strcpy): Likewise.
        (fold_builtin_strncpy): Likewise.
        (fold_builtin_memory_chk): Likewise.
        (fold_builtin_stxcpy_chk): Likewise.
        (fold_builtin_strncpy_chk): Likewise.
        (fold_builtin_next_arg): Likewise.
        (fold_build_call_expr): Declare.
        (fold_builtin_call_list): Declare.
        (fold_builtin_call_valist): Declare.
        (build_call_expr): Declare.
        (validate_arglist): Update to agree with modified definition.
        (tree_operand_length): New.
        (call_expr_arg_iterator): New.
        (init_call_expr_arg_iterator): New.
        (next_call_expr_arg): New.
        (first_call_expr_arg): New.
        (more_call_expr_args_p): New.
        (FOR_EACH_CALL_EXPR_ARG): New.

        * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
        and tcc_gimple_stmt.
        (tree_code_size): Update documentation.  Use sizeof (tree) rather
        than sizeof (char *).
        (tree_size): Likewise.  Add case for tcc_vl_exp.
        (tree_node_structure): Add case for tcc_vl_exp.
        (contains_placeholder_p): Likewise.
        (substitute_in_expr): Likewise.
        (substitute_placeholder_in_expr): Likewise.
        (stabilize_reference_1): Likewise.
        (build3_stat): Remove logic for CALL_EXPRs.  Replace with assertion
        to diagnose breakage of this interface for constructing CALL_EXPRs.
        (build_nt): Add similar assertion here.
        (build_nt_call_list): New.
        (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
        (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (get_callee_fndecl): Use new CALL_EXPR accessors.
        (tree_operand_check_failed): Change parameters to pass entire node
        instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
        (process_call_operands): New.
        (build_vl_exp_stat): New.
        (build_call_list): New.
        (build_call_nary): New.
        (build_call_valist): New.
        (build_call_array): New.
        (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (call_expr_arglist): New.

        * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
        tcc_vl_exp instead of a fixed-size tcc_expression.

        * doc/c-tree.texi (CALL_EXPR): Document new representation and
        accessors for CALL_EXPRs.
        (AGGR_INIT_EXPR): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * builtins.c (c_strlen): Return NULL_TREE instead of 0.
        (expand_builtin_nonlocal_goto): Change parameter to be entire
        CALL_EXPR instead of an arglist.  Use new CALL_EXPR accessors.
        (expand_builtin_prefetch): Likewise.
        (expand_builtin_classify_type): Likewise.
        (mathfn_built_in): Return NULL_TREE instead of 0.
        (expand_errno_check): Use new CALL_EXPR accessors.
        (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
        Return NULL_RTX instead of 0.
        (expand_builtin_mathfn_2): Likewise.
        (expand_builtin_mathfn_3): Likewise.
        (expand_builtin_interclass_mathfn): Likewise.
        (expand_builtin_sincos): Likewise.
        (expand_builtin_cexpi): Likewise.
        (expand_builtin_int_roundingfn): Likewise.
        (expand_builtin_int_roundingfn_2): Likewise.
        (expand_builtin_pow): Likewise.
        (expand_builtin_powi): Likewise.
        (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
        of arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_RTX instead of 0.
        (expand_builtin_strstr): Likewise.
        (expand_builtin_strchr): Likewise.
        (expand_builtin_strrchr): Likewise.
        (expand_builtin_strpbrk): Likewise.
        (expand_builtin_memcpy): Likewise.
        (expand_builtin_mempcpy): Likewise.
        (expand_builtin_mempcpy_args): New.
        (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
        (expand_builtin_memmove_args): New.
        (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
        (expand_movstr): Likewise.
        (expand_builtin_strcpy): Likewise.
        (expand_builtin_strcpy_args): New.
        (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
        (expand_builtin_strncpy): Likewise.
        (expand_builtin_memset): Likewise.
        (expand_builtin_memset_args): New.
        (expand_builtin_bzero): Similarly to expand_builtin_memset.
        (expand_builtin_memcmp): Likewise.
        (expand_builtin_strcmp): Likewise.
        (expand_builtin_strncmp): Likewise.
        (expand_builtin_strcat): Likewise.
        (expand_builtin_strncat): Likewise.
        (expand_builtin_strspn): Likewise.
        (expand_builtin_strcspn): Likewise.
        (expand_builtin_args_info): Likewise.
        (expand_builtin_va_start): Likewise.
        (gimplify_va_arg_expr): Likewise.
        (expand_builtin_va_end): Likewise.
        (expand_builtin_va_copy): Likewise.
        (expand_builtin_frame_address): Likewise.
        (expand_builtin_alloca): Likewise.
        (expand_builtin_bswap): Likewise.
        (expand_builtin_unop): Likewise.
        (expand_builtin_fputs): Likewise.
        (expand_builtin_expect): Likewise.
        (expand_builtin_fabs): Likewise.
        (expand_builtin_copysign): Likewise.
        (expand_builtin_printf): Likewise.
        (expand_builtin_fprintf): Likewise.
        (expand_builtin_sprintf): Likewise.
        (expand_builtin_init_trampoline): Likewise.
        (expand_builtin_signbit): Likewise.
        (expand_builtin_fork_or_exec): Likewise.
        (expand_builtin_sync_operation): Likewise.
        (expand_builtin_compare_and_swap): Likewise.
        (expand_builtin_lock_test_and_set): Likewise.
        (expand_builtin_lock_release): Likewise.
        (expand_builtin): Likewise.
        (builtin_mathfn_code): Likewise.

        (fold_builtin_constant_p): Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_expect): Likewise.
        (fold_builtin_classify_type): Likewise.
        (fold_builtin_strlen): Likewise.
        (fold_builtin_nan): Likewise.
        (integer_valued_real_p): Likewise.
        (fold_trunc_transparent_mathfn): Likewise.
        (fold_fixed_mathfn): Likewise.
        (fold_builtin_cabs): Likewise.
        (fold_builtin_sqrt): Likewise.
        (fold_builtin_cbrt): Likewise.
        (fold_builtin_cos): Likewise.
        (fold_builtin_cosh): Likewise.
        (fold_builtin_tan): Likewise.
        (fold_builtin_sincos): Likewise.
        (fold_builtin_cexp): Likewise.
        (fold_builtin_trunc): Likewise.
        (fold_builtin_floor): Likewise.
        (fold_builtin_ceil): Likewise.
        (fold_builtin_round): Likewise.
        (fold_builtin_int_roundingfn): Likewise.
        (fold_builtin_bitop): Likewise.
        (fold_builtin_bswap): Likewise.
        (fold_builtin_logarithm): Likewise.
        (fold_builtin_hypot): Likewise.
        (fold_builtin_pow): Likewise.
        (fold_builtin_powi): Likewise.
        (fold_builtin_exponent): Likewise.
        (fold_builtin_memset): Likewise.
        (fold_builtin_bzero): Likewise.
        (fold_builtin_memory_op): Likewise.
        (fold_builtin_bcopy): Deleted; call site changed to invoke
        fold_builtin_memory_op directly.
        (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
        (fold_builtin_strncpy): Likewise.
        (fold_builtin_memcmp): Likewise.
        (fold_builtin_strcmp): Likewise.
        (fold_builtin_strncmp): Likewise.
        (fold_builtin_signbit): Likewise.
        (fold_builtin_copysign): Likewise.
        (fold_builtin_isascii): Likewise.
        (fold_builtin_toascii): Likewise.
        (fold_builtin_isdigit): Likewise.
        (fold_builtin_fabs): Likewise.
        (fold_builtin_abs): Likewise.
        (fold_builtin_fmin_fmax): Likewise.
        (fold_builtin_carg): Likewise.
        (fold_builtin_classify): Likewise.
        (fold_builtin_unordered_cmp): Likewise.

        (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
        New functions split out from fold_builtin_1.
        (fold_builtin_n): New.
        (fold_builtin_varargs): New.
        (fold_builtin): Deleted.  Most callers changed to use fold_call_expr
        instead.
        (fold_call_expr): New.
        (build_function_call_expr): Rewrite to use new helper function.
        (fold_builtin_call_list): New.
        (build_call_expr): New.
        (fold_builtin_call_valist): New.
        (rewrite_call_expr): New.
        (validate_arg): New.
        (validate_arglist): Change parameter to be entire CALL_EXPR instead
        of an arglist.  Change return type to bool.  Use new CALL_EXPR
        accessors.

        (fold_builtin_strstr):  Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_strchr): Likewise.
        (fold_builtin_strrchr): Likewise.
        (fold_builtin_strpbrk): Likewise.
        (fold_builtin_strcat): Likewise.
        (fold_builtin_strncat): Likewise.
        (fold_builtin_strspn): Likewise.
        (fold_builtin_strcspn): Likewise.
        (fold_builtin_fputs): Likewise.
        (fold_builtin_next_arg): Likewise.
        (fold_builtin_sprintf): Likewise.

        (expand_builtin_object_size): Use new CALL_EXPR accessors.  Use
        NULL_RTX instead of 0.
        (expand_builtin_memory_chk): Likewise.
        (maybe_emit_chk_warning): Likewise.
        (maybe_emit_sprintf_chk_warning): Likewise.

        (fold_builtin_object_size): Pass call arguments individually instead
        of as an arglist, fixing callers appropriately.  Use new CALL_EXPR
        accessors and constructors.  Return NULL_TREE instead of 0.
        (fold_builtin_memory_chk): Likewise.
        (fold_builtin_stxcpy_chk): Likewise.
        (fold_builtin_strncpy_chk): Likewise.
        (fold_builtin_strcat_chk): Likewise.
        (fold_builtin_strcat_chk): Likewise.
        (fold_builtin_strncat_chk): Likewise.
        (fold_builtin_sprintf_chk): Likewise.
        (fold_builtin_snprintf_chk): Likewise.
        (fold_builtin_printf): Likewise.
        (fold_builtin_vprintf): Likewise.

        * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
        constructors.
        (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
        (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (extract_muldiv_1): Add VL_EXP_CLASS_P case.
        (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
        (fold_unary): Likewise.
        (fold_binary): Likewise.
        (fold_ternary): Remove CALL_EXPR case, since they are no longer
        ternary expressions.
        (fold): Add logic for tcc_vl_exp.
        (fold_checksum_tree):  Make it know about tcc_vl_exp.  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (fold_build3_stat): Add assertion to flag broken interface for
        constructing CALL_EXPRs.
        (fold_build_call_list): New.
        (fold_build_call_list_initializer): New.
        (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
        constructors.
        (fold_strip_sign_ops): Likewise.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
        accessors and dump arguments explicitly.

        * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
        explicitly.
        (print_call_name): Use new CALL_EXPR accessors.

        * print-tree.c (print_node): Add case tcc_vl_exp.  Print
        CALL_EXPR arguments explicitly instead of as a list.  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
        (vrp_visit_stmt): Likewise.

        * tree-ssa-loop-im.c (outermost_invariant_loop_expr):  Make it
        know about tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.
        (force_move_till_expr): Likewise.

        * targhooks.c (default_external_stack_protect_fail): Use
        build_call_expr instead of build_function_call_expr.
        (default_hidden_stack_protect_fail): Likewise.

        * tree-complex.c (expand_complex_libcall): Use build_call_expr to
        build the call.

        * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
        and walk arguments explicitly.

        * tree-ssa-loop-niter.c (simplify_replace_tree): Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (expand_simple_operations): Likewise.
        (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.

        * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.
        (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.

        * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.

        * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
        (tree_ic_transform): Likewise.
        (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
        parameter instead of arglist.  Fix callers.
        (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
        (tree_stringops_transform): Likewise.
        (tree_indirect_call_to_profile): Likewise.
        (tree_stringops_values_to_profile): Likewise.

        * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
        (eliminate_tail_call): Likewise.

        * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.

        * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
        Use TREE_OPERAND_LENGTH and generalize to handle any number of
        operands.
        (instantiate_parameters_1): Can't handle tcc_vl_exp here.

        * omp-low.c (build_omp_barrier): Use build_call_expr.
        (lower_rec_input_clauses): Likewise.
        (lower_reduction_clauses): Likewise.
        (expand_parallel_call): Likewise.
        (maybe_catch_exception): Likewise.
        (expand_omp_for_generic): Likewise.
        (expand_omp_for_static_nochunk): Likewise.
        (expand_omp_sections): Likewise.
        (lower_omp_single_simple): Likewise.
        (lower_omp_single_copy): Likewise.
        (lower_omp_master): Likewise.
        (lower_omp_ordered): Likewise.
        (lower_omp_critical): Likewise.

        * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
        (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.

        * tree-gimple.c (is_gimple_call_addr): Fix doc.
        (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
        TREE_CODE_LENGTH.  Add tcc_vl_exp case.

        * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
        and generalize to handle any number of operands.
        (chrec_contains_undetermined): Likewise.
        (tree_contains_chrecs): Likewise.
        (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.

        * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.

        * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors.  Use
        fold_call_expr instead of fold_builtin.
        (ccp_fold_builtin): Likewise.  Update calls into builtins.c to
        match declarations there.
        (fold_stmt): Use new CALL_EXPR constructor and accessors.  Doc
        updates.

        * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
        (scan_function): Add case tcc_vl_exp for CALL_EXPR.

        * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
        accessors.

        * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
        (execute_cse_sincos): Use new CALL_EXPR accessors.

        * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.

        * gimple-low.c (lower_function_body): Use build_call_expr.
        (lower_builtin_setjmp): Likewise.

        * expr.c (emit_block_move_via_libcall): Use build_call_expr.
        (set_storage_via_libcall): Likewise.
        (safe_from_p): Add tcc_vl_exp case.  Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.
        (expand_expr_real_1): Use new CALL_EXPR accessors.

        * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
        generalize to handle any number of operands.
        (TB_parent_eq): Likewise.

        * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
        (strip_builtin_expect): Likewise.

        * function.c (gimplify_parameters): Use build_call_expr.

        * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.

        * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
        (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.

        * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
        iterators.

        * gimplify.c (build_stack_save_restore): Use build_call_expr.
        (gimplify_decl_expr): Likewise.
        (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
        Use new CALL_EXPR iterators.
        (gimplify_modify_expr_to_memcpy): Use build_call_expr.
        (gimplify_modify_expr_to_memset): Likewise.
        (gimplify_variable_sized_compare): Likewise.
        (gimplify_omp_atomic_fetch_op): Likewise.
        (gimplify_omp_atomic_pipeline): Likewise.
        (gimplify_omp_atomic_mutex): Likewise.
        (gimplify_function_tree): Likewise.

        * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
        (call_expr_flags): Likewise.
        (expand_call): Likewise.

        * except.c (expand_builtin_eh_return_data_regno): Pass entire
        CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
        accessors.

        * coverage.c (create_coverage): Use build_call_expr.

        * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
        (temp_call_expr_obstack): New.
        (pool_copy_list): Delete.
        (temp_copy_call_expr): New.
        (phi_translate): Add case tcc_vl_exp for CALL_EXPR.  Use new
        CALL_EXPR accessors.  Get rid of special goo for copying argument
        lists and use temp_copy_call_expr instead.
        (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR.  Use new
        CALL_EXPR accessors.
        (create_expression_by_pieces): Likewise.  Use build_call_array
        to construct the result instead of fold_build3.
        (create_value_expr_from): Add tcc_vl_exp.  Delete special goo for
        dealing with argument lists.
        (init_pre): Remove references to expression_node_pool and
        list_node_pool.  Init temp_call_expr_obstack instead.
        (fini_pre): Remove references to expression_node_pool and
        list_node_pool.

        * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
        and walk arguments explicitly instead of as a list.

        * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
        (mx_register_decls): Likewise.
        (mudflap_register_call): Likewise.
        (mudflap_finish_file): Likewise.

        * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
        (ipa_callsite_compute_param): Likewise.

        * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
        accessors and constructor.

        * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
        accessors and constructor.
        (convert_tramp_reference): Likewise.
        (convert_call_expr): Likewise.
        (finalize_nesting_tree_1): Likewise.

        * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
        accessors.

        * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.

        * tree-inline.c (initialize_inlined_parameters): Pass entire
        CALL_EXPR as parameter instead of arglist.  Use new CALL_EXPR
        accessors.
        (estimate_num_insns_1): Use new CALL_EXPR accessors.
        (expand_call_inline): Tidy up call to initialize_inlined_parameters.

        * tree-vect-transform.c (vect_create_epilog_for_reduction):  Use
        TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
        (vectorizable_reduction): Likewise.
        (vectorizable_call): Use new CALL_EXPR iterators.
        (vectorizable_conversion): Use build_call_expr.
        (vectorizable_operation): Use TREE_OPERAND_LENGTH.
        (vect_gen_widened_results_half): Use build_call_expr.
        (vect_setup_realignment): Likewise.
        (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.

        * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
        (pass_through_call): Likewise.
        (compute_object_sizes): Likewise.  Use fold_call_expr instead of
        fold_builtin.

        * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
        (tree_gen_pow2_profiler): Likewise.
        (tree_gen_one_value_profiler): Likewise.
        (tree_gen_ic_func_profiler): Likewise.
        (tree_gen_average_profiler): Likewise.
        (tree_gen_ior_profiler): Likewise.

        * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
        (find_func_aliases): Use new CALL_EXPR accessors.  Add case
        tcc_vl_exp.  Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.

        * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.

        * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
        of TREE_CODE_LENGTH.

        * convert.c (convert_to_real): Use new CALL_EXPR accessors and
        constructor.
        (convert_to_integer): Likewise.

        * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
        accessors.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
        accessors.
        * config/frv/frv.c (frv_expand_builtin): Likewise.
        * config/s390/s390.c (s390_expand_builtin): Likewise.

        * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
        (sparc_expand_builtin): Use new CALL_EXPR accessors.

        * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
        (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
        instead of arglist.  Use new CALL_EXPR accessors on it.  Fix callers.
        (ix86_expand_store_builtin): Likewise.
        (ix86_expand_unop_builtin): Likewise.
        (ix86_expand_unop1_builtin): Likewise.
        (ix86_expand_sse_compare): Likewise.
        (ix86_expand_sse_comi): Likewise.
        (ix86_expand_vec_init_builtin): Likewise.
        (ix86_expand_vec_ext_builtin): Likewise.
        (ix86_expand_vec_set_builtin): Likewise.
        (ix86_expand_builtin): Use new CALL_EXPR accessors.

        * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
        * config/c4x/c4x.c (c4x_expand_builtin): Likewise.

        * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (iq2000_expand_builtin): Use new CALL_EXPR accessors.

        * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
        build_call_expr.
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
        (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (altivec_expand_abs_builtin): Likewise.
        (rs6000_expand_binop_builtin): Likewise.
        (altivec_expand_predicate_builtin): Likewise.
        (altivec_expand_lv_builtin): Likewise.
        (spe_expand_stv_builtin): Likewise.
        (altivec_expand_stv_builtin): Likewise.
        (rs6000_expand_ternop_builtin): Likewise.
        (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
        (altivec_expand_st_builtin): Likewise.
        (altivec_expand_dst_builtin): Likewise.
        (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (altivec_expand_vec_set_builtin): Likewise.
        (altivec_expand_vec_ext_builtin): Likewise.
        (altivec_expand_builtin): Use new CALL_EXPR accessors.
        (spe_expand_builtin): Likewise.
        (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
        arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (spe_expand_evsel_builtin): Likewise.
        (rs6000_expand_builtin): Use new CALL_EXPR accessors.  VCFUX and
        FCFSX cases must construct whole new CALL_EXPR, not just arglist.

        * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (arm_expand_unop_builtin): Likewise.
        (arm_expand_builtin): Use new CALL_EXPR accessors.

        * config/mips/mips.c (mips_expand_builtin):  Use new CALL_EXPR
        accessors.

        * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
        instead of arglist.  Use new CALL_EXPR accessors.  Fix callers.
        (bfin_expand_unop_builtin): Likewise.
        (bfin_expand_builtin): Use new CALL_EXPR accessors.

2007-02-15  Sandra Loosemore  <sandra@codesourcery.com>
            Brooks Moses  <brooks.moses@codesourcery.com>
            Lee Millward  <lee.millward@codesourcery.com>

        * c-semantics.c (build_stmt): Add internal diagnostic check.

        * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
        accessors.  Print arguments explicitly instead of as a list.

        * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.

        * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
        (c_finish_omp_flish): Likewise.

        * c-common.c (verify_tree): Use new CALL_EXPR accessors.  Traverse
        arguments explicitly instead of as a list.  Use TREE_OPERAND_LENGTH
        instead of TREE_CODE_LENGTH.
        (check_function_arguments_recurse): Use new CALL_EXPR accessors.
        (c_warn_unused_result): Likewise.

2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/26494
        * doc/invoke.texi (Warning Options): Remove
        -Werror-implicit-function-declaration.
        (Wimplicit-function-declaration): Update description.
        * opts.c (common_handle_option): Move handling of -Werror=* to...
        (enable_warning_as_error): ...here.
        * opts.h (enable_warning_as_error): Declare.
        * c-decl.c (implicit_decl_warning): Unless
        -Wno-implicit-function-declaration is given, emit a pedwarn if
        -std=c99 or emit a warning if -Wimplicit-function-declaration.
        * c.opt (Wimplicit-function-declaration): Replace
        mesg_implicit_function_declaration with
        warn_implicit_function_declaration.
        * c-opts.c (c_common_handle_option):
        -Werror-implicit-function-declaration is exactly equal as
        -Werror=implicit-function-declaration.
        (set_Wimplicit): Replace mesg_implicit_function_declaration with
        warn_implicit_function_declaration.
        (c_common_post_options): -Wimplict-function-declaration is enabled
        by default by -std=c99, otherwise is disabled by default.
        * c-objc-common.c (c_objc_common_init): Remove flawed logic.

2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * gimplify.c (gimplify_modify_expr): During gimplification, attach a
        DECL on the rhs to a DECL on the lhs for debug info purposes if the
        former is ignored but not the latter.

2007-02-15  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
        is made and the reference doesn't use the alias set of its type,
        do not create the temporary using that type.

2007-02-15  Aldy Hernandez  <aldyh@redhat.com>

        * jump.c: Remove prototypes for delete_computation and
        delete_prior_computation.

2007-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * jump.c (get_label_after): Delete.
        (get_label_before, delete_computation, delete_jump,
        delete_prior_computation, follow_jumps): Move...
        * reorg.c (delete_computation, delete_prior_computation): ... here...
        (get_label_before, delete_jump): ... making these static ...
        (follow_jumps): ... and simplifying this since it only runs after
        reload.
        * rtl.h (get_label_after, get_label_before, delete_jump,
        follow_jumps): Delete prototypes.

2007-02-15  Paolo Bonzini  <bonzini@gnu.org>

        * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.

2007-02-15  Nick Clifton  <nickc@redhat.com>

        * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
        order to prevent it from being munged by the target.

2007-02-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Remove misleading comment.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
        reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
        invalid patterns.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (instantiate_missing_elements): Canonicalize
        bit-field types.
        (sra_build_assignment): New.
        (generate_copy_inout, generate_element_copy,
        generate_element_zero, generate_one_element_init): Use it.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * tree-sra.c (instantiate_missing_elements): Canonicalize
        bit-field types.
        (sra_build_assignment): New.
        (generate_copy_inout, generate_element_copy,
        generate_element_zero, generate_one_element_init): Use it.

2007-02-15  Alexandre Oliva  <aoliva@redhat.com>

        * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
        limbo die nodes.

2007-02-14  Joseph Myers  <joseph@codesourcery.com>

        * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
        types as aggregates not scalars.
        * function.c (assign_stack_temp_for_type): Likewise.

2007-02-14  Roger Sayle  <roger@eyesopen.com>
            Zdenek Dvorak  <dvorakz@suse.cz>

        * tree-dump.c (dump_switch_p_1): Require exact match of the option
        name.

2007-02-14  Zdenek Dvorak  <dvorakz@suse.cz>

        * passes.c (next_pass_1): Clear the next field of the copied
        pass structure.

2007-02-14  Richard Henderson  <rth@redhat.com>

        * tree-sra.c (early_sra): New.
        (decl_can_be_decomposed_p): Deny va_list if early_sra.
        (tree_sra_early, pass_sra_early): New.
        * tree-pass.h (pass_sra_early): Declare.
        * passes.c (init_optimization_passes): Use it.

2007-02-14  Richard Guenther  <rguenther@suse.de>

        * flags.h (issue_strict_overflow_warning): Convert to a macro.

2007-02-14  Dorit Nuzman  <dorit@il.ibm.com>

         PR tree-optimization/30771
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
        also phi nodes.
        (vect_analyze_operations): Induction phis can now be marked as
        used_in_loop.
        (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
        Update documentation accordingly.

2007-02-14  Nick Clifton  <nickc@redhat.com>

        * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
        most 3 arguments are supported.
        (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.

2007-02-13  Seongbae Park <seongbae.park@gmail.com>

        * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
        Ensure dst->current is valid.

2007-02-13  Paul Brook  <paul@codesourcery.com>

        * config.gcc: Add arm*-*-uclinux-*eabi.
        * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
        (SUBTARGET_EXTRA_LINK_SPEC): Define.
        (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
        (LINK_GCC_C_SEQUENCE_SPEC): Undef.
        (LINK_SPEC): Define.
        (LIB_SPEC): Define.
        * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
        register.
        * config/arm/uclinux-eabi.h: New file.
        * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
        * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
        based targets.

2007-02-13  Ian Lance Taylor  <iant@google.com>

        * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
        * flags.h (warn_strict_overflow): Declare.
        (enum warn_strict_overflow_code): Define.
        (issue_strict_overflow_warning): New static inline function.
        * opts.c (warn_strict_overflow): New variable.
        (common_handle_option): Handle OPT_Wstrict_overflow and
        OPT_Wstrict_overflow_.
        * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
        OPT_Wall.
        * fold-const.c: Include intl.h.
        (fold_deferring_overflow_warnings): New static variable.
        (fold_deferred_overflow_warning): New static variable.
        (fold_deferred_overflow_code): New static variable.
        (fold_defer_overflow_warnings): New function.
        (fold_undefer_overflow_warnings): New function.
        (fold_undefer_and_ignore_overflow_warnings): New function.
        (fold_deferring_overflow_warnings_p): New function.
        (fold_overflow_warning): New static function.
        (make_range): Add strict_overflow_p parameter.  Change all
        callers.
        (extract_muldiv, extract_muldiv_1): Likewise.
        (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
        tree_expr_nonnegative_p.
        (fold_negate_expr): Call fold_overflow_warning.
        (fold_range_test): Likewise.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.  Call tree_expr_nonnegative_warnv_p
        instead of tree_expr_nonnegative_p.
        (tree_expr_nonnegative_warnv_p): Rename from
        tree_expr_nonnegative_p, add strict_overflow_p parameter.
        (tree_expr_nonnegative_p): New function.
        (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
        strict_overflow_p parameter.
        (tree_expr_nonzero_p): New function.
        * passes.c (verify_interpass_invariants): New static function.
        (execute_one_pass): Call it.
        * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
        warnings.
        (number_of_iterations_exit, loop_niter_by_eval): Likewise.
        (estimate_numbers_of_iterations): Likewise.
        (scev_probably_wraps_p): Likewise.
        * tree-ssa-ccp.c: Include "toplev.h".
        (evaluate_stmt): Defer fold overflow warnings until we know we are
        going to optimize.
        (struct fold_stmt_r_data): Add stmt field.
        (fold_stmt_r): Defer fold overflow warnings until we know we
        optimized.
        (fold_stmt): Initialize stmt field of fold_stmt_r_data.
        (fold_stmt_inplace): Likewise.
        * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
        (cleanup_control_expr_graph): Defer fold overflow warnings until
        we know we are going to optimize.
        * tree-cfg.c (fold_cond_expr_cond): Likewise.
        * tree-ssa-threadedge.c (simplify_control_stmt_condition):
        Likewise.
        * tree-vrp.c (vrp_expr_computes_nonnegative): Call
        tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
        * tree-ssa-loop-manip.c (create_iv): Likewise.
        * c-typeck.c (build_conditional_expr): Likewise.
        (build_binary_op): Likewise.
        * tree-vrp.c (vrp_expr_computes_nonzero): Call
        tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
        (extract_range_from_unary_expr): Likewise.
        * simplify-rtx.c (simplify_const_relational_operation): Warn when
        assuming that signed overflow does not occur.
        * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
        * tree.h (tree_expr_nonnegative_warnv_p): Declare.
        (fold_defer_overflow_warnings): Declare.
        (fold_undefer_overflow_warnings): Declare.
        (fold_undefer_and_ignore_overflow_warnings): Declare.
        (fold_deferring_overflow_warnings_p): Declare.
        (tree_expr_nonzero_warnv_p): Declare.
        * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
        of warning options.
        (Warning Options): Document -Wstrict-overflow.
        * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
        (tree-ssa-ccp.o): Likewise.
        (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
        (fold-const.o): Depend on intl.h.

2007-02-13  Ian Lance Taylor  <iant@google.com>

        PR middle-end/30751
        * lower-subreg.c (resolve_simple_move): Decompose subregs in
        addresses.

2007-02-13  Stuart Hastings  <stuart@apple.com>

        * config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.

2007-02-13  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
        handled_component_p before looking for the indirect_ref.

2007-02-13  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
        remove flags clobber.
        (bswapsi2): New expander, emit code for !TARGET_BSWAP.
        (bswaphi_lowpart): New.
        (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
        remove TARGET_BSWAP test.  Delete expander of the same name.

        * optabs.c (widen_bswap, expand_doubleword_bswap): New.
        (expand_unop): Use them.

2007-02-13  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
        *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
        *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
        *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
        *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
        *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
        *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
        assembler dialect choice from asm templates.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
        (fixuns_trunc<SSEMODEF>si2): Use it.
        * config/i386/sse.md (vec_setv4sf_0): Export.
        * config/i386/i386.c (ix86_build_const_vector): Export.
        (ix86_split_convert_uns_si_sse): Rename from
        ix86_expand_convert_uns_si_sse and rewrite as a splitter.
        * config/i386/i386-protos.h: Update.

2007-02-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/29521
        * c-typeck.c (c_finish_return): Improve warning message.

2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * alias.c (find_symbolic_term): Delete unused function.

2007-02-12  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (paritydi2, paritysi2): New expanders.
        (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
        (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.

2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
        * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
        the function, temporarily point the debug interface to the null one.

2007-02-12  Eric Botcazou  <ebotcazou@adacore.com>

        * dwarf2out.c (round_up_to_align): New static function.
        (field_byte_offset): Use it to round the offset.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
        (inswl_const): Export.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
        result mode of the libcall, convert back to outmode.

2007-02-12  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
        (bswapdi2): New define_expand to implement 32-bit implementation.

2007-02-12  Nick Clifton  <nickc@redhat.com>

        * doc/invoke.texi (Overall Options): Document --help=.
        * gcc.c (target_help_flag): Rename to print_subprocess_flag.
        (cc1_options): Pass --help= on to cc1.
        (display_help): Add description of --help=.
        (process_command): Add code to handle --help=.  Allow translated
        --help and --target-help switches to be passed on to compiler
        sub-process.
        (main): Remove unused if statement.
        * opts.c (columns): Remove.
        (LEFT_COLUMN): Define.
        (wrap_help): Add columns argument.
        (print_filtered_help): Change parameters to be an include bitmask,
        an exclude bitmask, an any bitmask and the column width.  Move the
        code to display the params list here.  Add code to display the
        status of options rather than their descriptions if the quiet flag
        is not active.
        (print_specific_help): Change parameters to be an include bitmask,
        an exclude bitmask and an any bitmask.  Move code to look up the
        column width here.  Decide upon the title for an options listing.
        (common_handle_options): Add code to handle --help=.  Adapt code
        for --help and --target-help to use the revised form of the
        print_specific_help function.
        (print_help): Delete.
        (print_param_help): Delete.
        (print_switch): Delete.
        * opts.h (cl_lang_count): Add prototype.
        (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
        CL_MAX_OPTION_CLASS): New defines.
        * optc-gen.awk: Add construction of cl_lang_count.
        * c.opt: Add Warning attribute to warning options and Optimization
        attribute to optimization options.
        * common.opt: Likewise.
        Add --help=.
        Add -fhelp and -ftarget-help as aliases for the transformed --help
        and --target-help options.
        * opt-functions.awk: Add code to handle Warning and Optimization
        attributes.

2007-02-12  Richard Henderson  <rth@redhat.com>

        * config/alpha/constraints.md: New file.
        * config/alpha/alpha.c: Include tm-constrs.h.
        (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
        alpha_extra_constraint): Remove.
        (alpha_emit_conditional_branch): Use satisfies_constraint_*.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
        (EXTRA_CONSTRAINT): Remove.
        * config/alpha/alpha.md: Include constraints.md.
        (adddi splitter): Use satisfies_constraint_*.
        * config/alpha/predicates.md (add_operand): Likewise.
        (sext_add_operand, addition_operation): Likewise.

2007-02-12  Dorit Nuzman  <dorit@il.ibm.com>

        PR tree-optimization/29145
        * tree-data-ref.c (base_addr_differ_p): Make us more conservative
        in our handling of restrict qualified pointers.

2007-02-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * doc/invoke.texi (Wunused-value): Update description.
        (Wextra): Delete item.
        * opts.c (set_Wextra): Don't use the value of Wextra to set the
        value of Wunused-value.
        * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
        (c_finish_stmt_expr): Don't check extra_warnings.
        (emit_side_effect_warnings): The caller is responsible to check
        warn_unused_value.

2007-02-11  Roger Sayle  <roger@eyesopen.com>
            Matt Thomas  <matt@3am-software.com>

        * simplify-rtx.c (simplify_relational_operation_1): Correct typo.

2007-02-11  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1): Optimize
        comparisons of POPCOUNT against zero.
        (simplify_const_relational_operation): Likewise.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * doc/invoke.texi (Wextra): Delete outdated paragraph.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * dwarf2out.c (root_type): Delete unused function.

2007-02-11  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * genattrtab.c (contained_in_p): Delete unused function.
        (write_expr_attr_cache): Likewise.

2007-02-11  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_edge_badness): Add "else" missing in the
        previous patch.

2007-02-11  Steven Bosscher  <steven@gcc.gnu.org>

        * fwprop.c (try_fwprop_subst): Use set_unique_reg_note
        to add the REG_EQ* note.
        * see.c (see_merge_one_use_extension): Likewise.
        * local-alloc.c (update_equiv_regs): Likewise.  Also don't
        turn REG_EQUAL notes into REG_EQUIV notes if the target
        register may have more than one set.
        * function.c (assign_parm_setup_reg): Use set_unique_reg_note.
        * gcse.c (try_replace_reg): Likewise.
        * alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
        * calls.c (fixup_tail_calls): Likewise.  Abort if there is
        more than one REG_EQUIV note.
        * reload1.c (gen_reload): Use set_unique_reg_note.

2007-02-11  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Define.
        (ix86_builtin_conversion): New function.

2007-02-06  Mark Mitchell  <mark@codesourcery.com>

        PR target/29487
        * tree.h (DECL_REPLACEABLE_P): New macro.
        * except.c (set_nothrow_function_flags): Likewise.

2007-02-11  Tehila Meyzels  <tehila@il.ibm.com>
            Ira Rosen  <irar@il.ibm.com>
            Dorit Nuzman  <dorit@il.ibm.com>

        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): New target hook.
        * targhooks.c (default_builtin_vectorized_conversion): New.
        * targhooks.h (default_builtin_vectorized_function): New declaration.
        * target.h (struct vectorize): Add builtin_conversion field.
        * tree-vectorizer.h (type_conversion_vec_info_type): New enum
        stmt_vec_info_type value.
        (vectorizable_conversion): New declaration.
        * tree-vect-analyze.c (vect_analyze_operations): Add
        vectorizable_conversion call.
        * target-def.h (TARGET_VECTORIZE_BUILTIN_CONVERSION): New.
        * tree-vect-transform.c (vectorizable_conversion): New function.
        (vect_transform_stmt): Add case for type_conversion_vec_info_type.
        * tree-vect-generic.c (expand_vector_operations_1): Consider correct
        mode.
        * config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
        (TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
        (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
        or ALTIVEC_BUILTIN_VCFSX.

2007-02-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/30634
        * pa.md (movdf): For 64-bit target, fail if operand 1 is a non-zero
        CONST_DOUBLE and operand 0 is a hard register.
        (movdi): For 64-bit target, remove code to force CONST_DOUBLE to
        memory.  Fail if operand 1 is a non-zero CONST_INT and operand 0
        is a hard floating-point register.

2007-02-10  Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>
            Alexandre Oliva  <aoliva@redhat.com>

        * Makefile.in (libgcc-support, libgcc.mvars): Add emutls.c.
        * builtin-types.def (BT_WORD): Make unsigned.
        (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
        * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
        (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
        * c-decl.c (grokdeclarator): Don't error if !have_tls.
        * c-parser.c (c_parser_omp_threadprivate): Likewise.
        * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
        emulated tls.
        * expr.c (emutls_var_address): New.
        (expand_expr_real_1): Expand emulated tls.
        (expand_expr_addr_expr_1): Likewise.
        * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
        * output.h (emutls_finish): Declare.
        * toplev.c (compile_file): Call it.
        * tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
        address before wrapping in CONST.
        * varasm.c (emutls_htab, emutls_object_type): New.
        (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
        (get_emutls_object_name, get_emutls_object_type): New.
        (get_emutls_init_templ_addr, emutls_decl): New.
        (emutls_common_1, emutls_finish): New.
        (assemble_variable): When emulating tls, swap decls; generate
        constructor for the emutls objects.
        (do_assemble_alias): When emulating tls, swap decl and target name.
        (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
        for emulated tls.
        * varpool.c (decide_is_variable_needed): Look at force_output.
        Recurse for emulated tls.
        (cgraph_varpool_remove_unreferenced_decls): Remove checks redundant
        with decide_is_variable_needed.
        * emutls.c: New file.
        * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
        tls_object for real tls.

2007-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/29599
        * reload1.c (eliminate_regs_in_insn): Take the destination
        mode into account when computing the offset.

2007-02-09  Stuart Hastings  <stuart@apple.com>
            Richard Henderson  <rth@redhat.com>

        * config/i386/i386.h (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
        * config/i386/darwin.h: (TARGET_KEEPS_VECTOR_ALIGNED_STACK): New.
        * config/i386/i386.md (fixuns_trunc<mode>si2, fixuns_truncsfhi2,
        fixuns_truncdfhi2): New.
        (fix_truncsfdi_sse): Call ix86_expand_convert_sign_didf_sse.
        (floatunsdidf2): Call ix86_expand_convert_uns_didf_sse.
        (floatunssisf2): Add call to ix86_expand_convert_uns_sisf_sse.
        (floatunssidf2): Allow nonimmediate source.
        * config/i386/sse.md (movdi_to_sse): New.
        (vec_concatv2di): Drop '*'.
        * config/i386/i386-protos.h (ix86_expand_convert_uns_si_sse,
        ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
        ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse):
        New.
        * config/i386/i386.c (ix86_expand_convert_uns_si_sse,
        ix86_expand_convert_uns_didf_sse, ix86_expand_convert_uns_sidf_sse,
        ix86_expand_convert_uns_sisf_sse, ix86_expand_convert_sign_didf_sse,
        ix86_build_const_vector, ix86_expand_vector_init_one_nonzero): New.
        (ix86_build_signbit_mask): Fix decl of v, refactor to call
        ix86_build_const_vector.
        (x86_emit_floatuns): Rewrite.

2007-02-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * genautomata.c (longest_path_length): Delete unused function.
        (struct state): Delete unused longest_path_length.
        (UNDEFINED_LONGEST_PATH_LENGTH): Delete unused macro.
        (get_free_state): Delete unused.

2007-02-09  Jan Hubicka  <jh@suse.cz>

        * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 30.
        * doc/invoke.texi (inline-unit-growth): Update default value.

        * Makefile.in (passes.o, ipa-inline.o): Add dependencies.
        * cgraphbuild.c (build_cgraph_edges): Compute frequencies.
        (rebuild_cgraph_edges): Likewise.
        * cgraph.c (cgraph_set_call_stmt): Add new argument frequency.
        (dump_cgraph_node): Dump frequencies.
        (cgraph_clone_edge): Add frequency scales.
        (cgraph_clone_node): Add freuqnecy.
        * cgraph.h (cgraph_edge): Add freuqnecy argument.
        (CGRAPH_FREQ_BASE, CGRAPH_FREQ_MAX): New constants.
        (cgraph_create_edge, cgraph_clone_edge, cgraph_clone_node): Update.
        * tree-pass.h (TODO_rebuild_frequencies): New constant.
        * cgraphunit.c (verify_cgraph_node): Verify frequencies.
        (cgraph_copy_node_for_versioning): Update call of cgraph_clone_edge.
        (save_inline_function_body): Likewise.
        * ipa-inline.c: inluce rtl.h
        (cgraph_clone_inlined_nods): Update call of cgraph_clone_node.
        (cgraph_edge_badness): Use frequencies.
        (cgraph_decide_recursive_inlining): Update clonning.
        (cgraph_decide_inlining_of_small_function): Dump frequency.
        * predict.c (estimate_bb_frequencies): Export.
        * predict.h (estimate_bb_frequencies): Declare.
        * tree-inline.c (copy_bb): Watch overflows.
        (expand_call_inline): Update call of cgraph_create_edge.
        (optimize_inline_calls): Use TODO flags to update frequnecies.
        * passes.h: Include predict.h
        (init_optimization_passes): Move profile ahead.
        (execute_function_todo): Handle TODO_rebuild_frequencies.

2007-02-09  Roger Sayle  <roger@eyesopen.com>

        * config/alpha/alpha.c (emit_insxl): Force the first operand of
        the insbl or inswl pattern into a register.

2007-02-09  Roger Sayle  <roger@eyesopen.com>

        * config/ia64/ia64.md (bswapdi2): New define_insn.

2007-02-09  Richard Henderson  <rth@redhat.com>

        * config/i386/constraints.md (Ym): New constraint.
        * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
        (movdi_1_rex64): Split sse and xmm general register moves from
        memory move alternatives.  Use conditional register constraints.
        (movsf_1, movdf_integer): Likewise.
        (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
        (movdf_integer_rex64): New.
        (pushsf_rex64): Fix output constraints.
        * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
        (sse2_stored): Likewise.
        (sse2_storeq_rex64): New.
        * config/i386/i386.c (x86_inter_unit_moves): Enable for not
        amd and not generic.
        (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
        for optimize_size.  Remove SF/DFmode hack.

2007-02-09  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>

        * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
        (bit_SSE4a): New.

2007-02-09  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68010-*-netbsdelf*, m68k*-*-netbsdelf*)
        (m68k*-*-openbsd*, m68k-*-linux*): Set default_cf_cpu.
        (m68k-*-aout*, m68k-*-coff*, m68k-*-uclinux*, m68k-*-rtems*): Add
        m68k/t-mlib to tmake_file.
        (m68020-*-elf*, m68k-*-elf*): Likewise.  Add t-m68kbare as well.
        (m68k*-*-*): Use --with-arch to pick a default for --with-cpu.
        (m680[012]0-*-*, m68k*-*-*): Add support for --with-arch.
        Allow it to be cf or m68k.  Set m68k_arch_family.  If that
        variable is not empty, add t-$m68k_arch_family to tmake_file.
        Add t-mlibs to tmake_file.
        * doc/install.texi: Document --with-arch=m68k and --with-arch=cf.
        * config/m68k/t-cf: New file.
        * config/m68k/t-m68k: Likewise.
        * config/m68k/t-mlibs: Likewise.
        * config/m68k/t-m68kbare (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
        * config/m68k/t-m68kelf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS, LIBGCC, INSTALL_LIBGCC):
        Delete.
        * config/m68k/t-openbsd (MULTILIB_OPTIONS, LIBGCC): Delete.
        (INSTALL_LIBGCC): Delete.
        (M68K_MLIB_DIRNAMES, M68K_MLIB_OPTIONS): Define.
        * config/m68k/t-rtems (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_CPU): Define.
        * config/m68k/t-uclinux (MULTILIB_OPTIONS, MULTILIB_DIRNAMES)
        (MULTILIB_MATCHES, MULTILIB_EXCEPTIONS): Delete.
        (M68K_MLIB_CPU, M68K_MLIB_OPTIONS, M68K_MLIB_DIRNAMES): Define.

2007-02-09  Zdenek Dvorak  <dvorakz@suse.cz>
            Richard Guenther  <rguenther@suse.de>

        PR middle-end/23361
        * fold-const.c (fold_comparison): Handle obfuscated comparisons
        against INT_MIN/INT_MAX.
        * tree-ssa-loop-ivcanon.c (remove_empty_loop): Print to dump
        file if a loop is removed.

2007-02-09  Joseph Myers  <joseph@codesourcery.com>

        * calls.c (store_one_arg): Pass correct alignment to
        emit_push_insn for non-BLKmode values.
        * expr.c (emit_push_insn): If STRICT_ALIGNMENT, copy to an
        unaligned stack slot via a suitably aligned slot.

2007-02-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_unpend_compare): Add default to silence
        warnings.
        (legal_subregs): Use unsigned char, make const.
        (m32c_illegal_subreg_p): Use ARRAY_SIZE.  Delete unused variables.

2007-02-08  Paul Brook  <paul@codesourcery.com>

        * config/arm/lib1funcs.asm (RETLDM): Pop directly into PC when no
        special interworking needed.

2007-02-08  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/xmmintrin.h: Make inclusion of emmintrin.h
        conditional to __SSE2__.
        (Entries below should have been added to first ChangeLog
        entry for amdfam10 dated 2007-02-05)
        * config/i386/emmintrin.h: Generate #error if __SSE2__ is not
        defined.
        * config/i386/pmmintrin.h: Generate #error if __SSE3__ is not
        defined.
        * config/i386/tmmintrin.h: Generate #error if __SSSE3__ is not
        defined.

2007-02-08  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c-protos.h (m32c_illegal_subreg_p): New.
        * config/m32c/m32c.c (legal_subregs): New.
        (m32c_illegal_subreg_p): New.
        * config/m32c/predicates.md (m32c_any_operand): Use it to reject
        unsupported subregs of hard regs.

2007-02-08  Jan Hubicka  <jh@suse.cz>

        * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
        the same one; always update histograms.

2007-02-08  Diego Novillo  <dnovillo@redhat.com>

        * passes.c (init_optimization_passes): Tidy comment.

2007-02-08  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_unary_operation_1) <POPCOUNT>: We can
        strip zero_extend, bswap and rotates from POCOUNT's argument.
        <PARITY>: Likewise, we can strip not, bswap, sign_extend,
        zero_extend and rotates from PARITY's argument.
        <BSWAP>: A byte-swap followed by a byte-swap is an identity.
        (simplify_const_unary_operation) <BSWAP>: Evaluate the byte-swap
        of an integer constant at compile-time.

2007-02-08  Diego Novillo  <dnovillo@redhat.com>

        PR 30562
        * tree-flow.h (struct var_ann_d): Remove field 'is_used'.
        Update all users.
        * tree-ssa-alias.c (compute_is_aliased): Remove.  Update all
        users.
        (init_alias_info):
        * tree-ssa-live.c (remove_unused_locals): Do not remove
        TREE_ADDRESSABLE variables.
        * tree-ssa-structalias.c (compute_points_to_sets): Tidy.
        * tree-ssa-operands.c (add_virtual_operand): Remove argument
        FOR_CLOBBER.  Update all users.
        If VAR has an associated alias set, add a virtual operand for
        it if no alias is found to conflict with the memory reference.

2007-02-07  Jan Hubicka  <jh@suse.cz>
            Robert Kidd <rkidd@crhc.uiuc.edu>

        * value-prof.c (visit_hist, free_hist): Return 1 instead of 0.

2007-02-07  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move): Reject PARTIAL_INT modes.

2007-02-07  Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (ctz<mode>2, ffs<mode>2, popcount<mode>2,
        parity<mode>2, smulsi3_highpart, abstf2_internal, allocate_stack,
        tablejumpdi, movsi_to_cr_one): Remove constraints from
        define_expand's match_operands.

2007-02-07  Roger Sayle  <roger@eyesopen.com>

        * global.c (compute_regsets): Move declatation of "i" inside of
        #ifdef ELIMINABLE_REGS to avoid unused variable bootstrap failure.

2007-02-07  Jakub Jelinek  <jakub@redhat.com>

        PR c++/30703
        * gimplify.c (gimplify_scan_omp_clauses): Remove special casing
        of INDIRECT_REF <RESULT_DECL>.

        * config/i386/i386.c (override_options): Set PTA_SSSE3 for core2.

2007-02-06  J"orn Rennecke  <joern.rennecke@arc.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/29746
        * config/sh/sh.c (expand_cbranchdi4): Use scratch register
        properly.
        (sh_initialize_trampoline): Add parentheses to avoid a warning.

2007-02-06  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/loop.texi: Document possibility not to perform disambiguation
        of loops with multiple latches.
        * cfgloopmanip.c (alp_enum_p): Removed.
        (add_loop): Handle subloops.  Use get_loop_body_with_size.
        (create_preheader): Do not allow ENTRY_BLOCK_PTR to be preheader.
        * cfghooks.c (redirect_edge_and_branch_force): Set dominator for
        the new forwarder block.
        (make_forwarder_block): Only call new_bb_cbk if it is not NULL.
        Handle the case latch is NULL.
        * tree-ssa-dom.c (tree_ssa_dominator_optimize): Avoid cfg modifications
        when marking loop exits.
        * ifcvt.c (if_convert): Ditto.  Mark loop exits even if cfg cannot
        be modified.
        * loop-init.c (loop_optimizer_init): Do not modify cfg.  Call
        disambiguate_loops_with_multiple_latches.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Calculate dominators
        before fix_loop_structure.
        * cfgloop.c: Include pointer-set.h and output.h.
        (canonicalize_loop_headers, HEADER_BLOCK, LATCH_EDGE,
        update_latch_info, mfb_keep_just, mfb_keep_nonlatch): Removed.
        (get_loop_latch_edges, find_subloop_latch_edge_by_profile,
        find_subloop_latch_edge_by_ivs, find_subloop_latch_edge,
        mfb_redirect_edges_in_set, form_subloop, merge_latch_edges,
        disambiguate_multiple_latches, get_loop_body_with_size,
        disambiguate_loops_with_multiple_latches): New functions.
        (flow_loop_dump): Dump multiple latch edges.
        (flow_loop_nodes_find): Handle loops with multiple latches.
        (flow_loops_find): Ditto. Do not call canonicalize_loop_headers.
        (glb_enum_p): Modified.
        (get_loop_body): Use get_loop_body_with_size.
        * cfgloop.h (LOOPS_HAVE_RECORDED_EXITS): New flag.
        (AVOID_CFG_MODIFICATIONS): New constant.
        (disambiguate_loops_with_multiple_latches, add_loop,
        get_loop_body_with_size): Declare.
        * Makefile.in (cfgloop.o): Add pointer-set.h and output.h.

2007-02-06  Seongbae Park <seongbae.park@gmail.com>

        PR inline-asm/28686
        * global.c (compute_regsets): New function.
        (global_alloc): Refactored ELIMINABLE_REGSET
        and NO_GLOBAL_ALLOC_REGS computation out.
        (rest_of_handle_global_alloc): Call compute_regsets()
        for non-optimizing case.

2007-02-06  Richard Henderson  <rth@redhat.com>

        * config/i386/constraints.md (Y2): Rename from Y.
        (Yi): New constraint.
        * config/i386/i386.md (movsi_1, movdi_2, pushdf_nointeger,
        pushdf_integer, movdf_nointeger, movdf_integer, zero_extendsidi2_32,
        zero_extendsidi2_rex64, truncxfdf2_mixed): Change Y constraints to Y2.
        (extendsfdf2_mixed, extendsfdf2_sse, truncdfsf_fast_mixed,
        truncdfsf_fast_sse, truncdfsf_mixed, fix_truncdfdi_sse,
        fix_truncdfsi_sse, floatsidf2_mixed, floatsidf2_sse,
        floatdidf2_mixed, floatdidf2_sse, absnegdf2_mixed,
        absnegdf2_sse, sse_setccdf, fop_df_comm_mixed, fop_df_comm_sse,
        fop_df_1_mixed, fop_df_1_sse): Change Y constraints to x.
        * config/i386/mmx.md (mov<MMXMODEI>_internal_rex64,
        mov<MMXMODEI>_internal, movv2sf_internal_rex64, movv2sf_internal,
        vec_extractv2si_1): Change Y constraints to Y2.
        * config/i386/sse.md (vec_setv4sf_0, vec_concatv2df, vec_dupv4si,
        vec_dupv2di, sse2_concatv2si, vec_concatv4si_1, vec_concatv2di):
        Change Y constraints to Y2.
        (sse2_loadld): Change Y constraints to x.

2007-02-06  Roger Sayle  <roger@eyesopen.com>

        * config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
        (parity<mode>2): New define_expand using rs6000_emit_parity.
        * config/rs6000/rs6000.c (rs6000_emit_popcount,
        rs6000_emit_parity): New functions.
        * config/rs6000/rs6000-protos.h (rs6000_emit_popcount,
        rs6000_emit_parity): Prototype here.

2007-02-06  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move_operand): Reject CONST.
        (resolve_clobber): Call validate_change rather than directly
        assigning to XEXP (pat, 0).

2006-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (tree-ssa-loop-ivopts.o): Add pointer-set.h dependency.
        (tree-ssa-reassoc.o): Add pointer-set.h dependency.
        (tree-cfg.o): Remove hashtab.h dependency.

        * tree-ssa-loop-ivopts.c: Include pointer-set.h.
        (struct ivopts_data): Change niters to pointer_map_t.
        (struct nfe_cache_elt, nfe_hash, nfe_eq): Delete.
        (niter_for_exit): Create pointer_map on demand.  Change for
        pointer_map API.
        (tree_ssa_iv_optimize_init): Initialize data->niters to NULL.
        (free_loop_data): Destroy data->niters if created and reset field.
        (tree_ssa_iv_optimize_finalize): Don't delete data->niters here.
        (tree_ssa_iv_optimize_loop): Check for presence of stale data.

        * tree-ssa-reassoc.c: Include pointer-set.h.
        (bb_rank): Change to long *.
        (operand_rank): Change to pointer_map_t.
        (find_operand_rank): Return long, -1 if not found.  Declare as inline.
        (insert_operand_rank): Accept long.
        (operand_entry_hash, operand_entry_eq): Remove.
        (get_rank): Return long.  Adjust for changes above.
        (init_reassoc): Change rank type to long.  Adjust creation of bb_rank
        and operand_rank.
        (fini_reassoc): Delete operand_rank with pointer_map_destroy.

        * tree-ssa-structalias.c (vi_for_tree): Change to pointer_map.
        (struct tree_vi, tree_vi_t, tree_vi_hash, tree_vi_eq): Delete.
        (insert_vi_for_tree): Rewrite for pointer_map API.  Assert argument
        is not NULL.
        (lookup_vi_for_tree): Rewrite for pointer_map API.  Return varinfo_t
        directly since it cannot be NULL.
        (get_vi_for_tree): Rewrite for pointer_map API.
        (find_what_p_points_to): Adjust for change to lookup_vi_for_tree.
        (init_alias_vars): Create vi_for_tree as pointer_map.
        (delete_points_to_sets): Delete vi_for_tree using pointer_map_destroy.

        * tree-cfg.c: Don't include hashtab.h.
        (edge_to_cases): Declare as pointer_map.
        (struct edge_to_cases_elt, edge_to_cases_hash, edge_to_cases_eq):
        Delete.
        (edge_to_cases_cleanup): Rewrite as pointer_map_traverse callback.
        (start_recording_case_labels): Create edge_to_cases as pointer_map.
        (end_recoding_case_labels): Cleanup edge_to_cases manually before
        destroying it.
        (record_switch_edge): Delete.
        (get_cases_for_edge): Adjust for pointer_map API, inline
        record_switch_edge (rewritten for new API), remove goto.

2006-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * Makefile.in (tree-nested.o): Add pointer-set.h dependency.
        * tree-nested.c: Include pointer-set.h.
        (var_map_elt, var_map_eq, var_map_hash): Delete.
        (struct nesting_info): Remove GTY marker.  Change the two htab_t's
        to pointer_map_t's.
        (nesting_info_bitmap_obstack): New.
        (lookup_field_for_decl): Adjust for pointer_map API.
        (lookup_tramp_for_decl): Adjust for pointer_map API.
        (get_nonlocal_debug_decl): Adjust for pointer_map API.
        (get_local_debug_decl): Adjust for pointer_map API.
        (convert_nl_goto_reference): Adjust for pointer_map API.
        (convert_nl_goto_receiver): Adjust for pointer_map API.
        (create_nesting_tree): Create outside GGC space.  Create bitmap on
        the new obstack.  Create field_map and var_map as pointer_maps.
        (free_nesting_tree): Adjust for changes to create_nesting_tree.
        (root): Delete.
        (lower_nested_functions): Move root here, no need to NULL it.
        Initialize and release the obstack.

2007-02-06  Paolo Bonzini  <bonzini@gnu.org>

        * tree.c (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p):
        Remove prototypes and make them non-static.
        (struct tree_int_map): Remove.
        * tree.h (struct tree_int_map): Move here, turning TO into an
        unsigned int.
        (tree_int_map_hash, tree_int_map_eq, tree_int_map_marked_p): Declare.

        * tree.h (TREE_COMPLEXITY): Remove.
        (struct tree_exp): Remove complexity field.
        * tree.c (build1_stat): Don't set it.

2007-02-06  Dorit Nuzman  <dorit@il.ibm.com>
            Victor Kaplansky  <victork@il.ibm.com>

        * tree-vectorizer.c (vect_is_simple_use): Support induction.
        (vect_is_simple_reduction): Support reduction with induction as
        one of the operands.
        (vect_is_simple_iv_evolution): Fix formatting.
        * tree-vect-analyze.c (vect_mark_stmts_to_be_vectorized): Fix
        formatting.  Don't mark induction phis for vectorization.
        (vect_analyze_scalar_cycles): Analyze all inductions, then reductions.
        * tree-vect-transform.c (get_initial_def_for_induction): New function.
        (vect_get_vec_def_for_operand): Support induction.
        (vect_get_vec_def_for_stmt_copy): Fix formatting and add check for
        induction case.
        (vectorizable_reduction): Support reduction with induction as one of
        the operands.
        (vectorizable_type_demotion): Use def-type of stmt argument rather
        than dummy def-type.

        * tree-ssa-loop.c (gate_scev_const_prop): Return the value of
        flag_tree_scev_cprop.
        * common.opt (tree-scev-cprop): New flag.

        * tree-vect-transform.c (vect_create_destination_var): Use 'kind' in
        call to vect_get_new_vect_var.

2007-02-06  Ira Rosen  <irar@il.ibm.com>

        * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Check that
        vectype is not NULL.
        (vect_pattern_recog_1): Likewise.

2007-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (negate_expr_p): Handle CONJ_EXPR.
        (fold_negate_expr): Likewise.

2007-02-05  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/30189
        * dwarf2out.c (modified_type_die): Follow DECL_ORIGINAL_TYPE
        even if cv-qualification is the same.

2007-02-05  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/darwin-tramp.asm (__trampoline_setup): Call
        __enable_execute_stack on completion.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_fldxf_k8, athlon_fld_k8,
        athlon_fstxf_k8, athlon_fst_k8, athlon_fist, athlon_fmov,
        athlon_fadd_load, athlon_fadd_load_k8, athlon_fadd, athlon_fmul,
        athlon_fmul_load, athlon_fmul_load_k8, athlon_fsgn,
        athlon_fdiv_load, athlon_fdiv_load_k8, athlon_fdiv_k8,
        athlon_fpspc_load, athlon_fpspc, athlon_fcmov_load,
        athlon_fcmov_load_k8, athlon_fcmov_k8, athlon_fcomi_load_k8,
        athlon_fcomi, athlon_fcom_load_k8, athlon_fcom): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.md (x86_sahf_1, cmpfp_i_mixed, cmpfp_i_sse,
        cmpfp_i_i387, cmpfp_iu_mixed, cmpfp_iu_sse, cmpfp_iu_387,
        swapsi, swaphi_1, swapqi_1, swapdi_rex64, fix_truncsfdi_sse,
        fix_truncdfdi_sse, fix_truncsfsi_sse, fix_truncdfsi_sse,
        x86_fldcw_1, floatsisf2_mixed, floatsisf2_sse, floatdisf2_mixed,
        floatdisf2_sse, floatsidf2_mixed, floatsidf2_sse,
        floatdidf2_mixed, floatdidf2_sse, muldi3_1_rex64, mulsi3_1,
        mulsi3_1_zext, mulhi3_1, mulqi3_1, umulqihi3_1, mulqihi3_insn,
        umulditi3_insn, umulsidi3_insn, mulditi3_insn, mulsidi3_insn,
        umuldi3_highpart_rex64, umulsi3_highpart_insn,
        umulsi3_highpart_zext, smuldi3_highpart_rex64,
        smulsi3_highpart_insn, smulsi3_highpart_zext, x86_64_shld,
        x86_shld_1, x86_64_shrd, sqrtsf2_mixed, sqrtsf2_sse,
        sqrtsf2_i387, sqrtdf2_mixed, sqrtdf2_sse, sqrtdf2_i387,
        sqrtextendsfdf2_i387, sqrtxf2, sqrtextendsfxf2_i387,
        sqrtextenddfxf2_i387): Added amdfam10_decode.

        * config/i386/athlon.md (athlon_idirect_amdfam10,
        athlon_ivector_amdfam10, athlon_idirect_load_amdfam10,
        athlon_ivector_load_amdfam10, athlon_idirect_both_amdfam10,
        athlon_ivector_both_amdfam10, athlon_idirect_store_amdfam10,
        athlon_ivector_store_amdfam10): New define_insn_reservation.
        (athlon_idirect_loadmov, athlon_idirect_movstore): Added
        amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_call_amdfam10,
        athlon_pop_amdfam10, athlon_lea_amdfam10): New
        define_insn_reservation.
        (athlon_branch, athlon_push, athlon_leave_k8, athlon_imul_k8,
        athlon_imul_k8_DI, athlon_imul_mem_k8, athlon_imul_mem_k8_DI,
        athlon_idiv, athlon_idiv_mem, athlon_str): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_sseld_amdfam10,
        athlon_mmxld_amdfam10, athlon_ssest_amdfam10,
        athlon_mmxssest_short_amdfam10): New define_insn_reservation.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_sseins_amdfam10): New
        define_insn_reservation.
        * config/i386/i386.md (sseins): Added sseins to define_attr type
        and define_attr unit.
        * config/i386/sse.md: Set type attribute to sseins for insertq
        and insertqi.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (sselog_load_amdfam10, sselog_amdfam10,
        ssecmpvector_load_amdfam10, ssecmpvector_amdfam10,
        ssecomi_load_amdfam10, ssecomi_amdfam10,
        sseaddvector_load_amdfam10, sseaddvector_amdfam10): New
        define_insn_reservation.
        (ssecmp_load_k8, ssecmp, sseadd_load_k8, seadd): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (cvtss2sd_load_amdfam10,
        cvtss2sd_amdfam10, cvtps2pd_load_amdfam10, cvtps2pd_amdfam10,
        cvtsi2sd_load_amdfam10, cvtsi2ss_load_amdfam10,
        cvtsi2sd_amdfam10, cvtsi2ss_amdfam10, cvtsd2ss_load_amdfam10,
        cvtsd2ss_amdfam10, cvtpd2ps_load_amdfam10, cvtpd2ps_amdfam10,
        cvtsX2si_load_amdfam10, cvtsX2si_amdfam10): New
        define_insn_reservation.

        * config/i386/sse.md (cvtsi2ss, cvtsi2ssq, cvtss2si,
        cvtss2siq, cvttss2si, cvttss2siq, cvtsi2sd, cvtsi2sdq,
        cvtsd2si, cvtsd2siq, cvttsd2si, cvttsd2siq,
        cvtpd2dq, cvttpd2dq, cvtsd2ss, cvtss2sd,
        cvtpd2ps, cvtps2pd): Added amdfam10_decode attribute.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/athlon.md (athlon_ssedivvector_amdfam10,
        athlon_ssedivvector_load_amdfam10, athlon_ssemulvector_amdfam10,
        athlon_ssemulvector_load_amdfam10): New define_insn_reservation.
        (athlon_ssediv, athlon_ssediv_load_k8, athlon_ssemul,
        athlon_ssemul_load_k8): Added amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.h (TARGET_SSE_UNALIGNED_MOVE_OPTIMAL): New macro.
        (x86_sse_unaligned_move_optimal): New variable.

        * config/i386/i386.c (x86_sse_unaligned_move_optimal): Enable for
        m_AMDFAM10.
        (ix86_expand_vector_move_misalign): Add code to generate movupd/movups
        for unaligned vector SSE double/single precision loads for AMDFAM10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.h (TARGET_AMDFAM10): New macro.
        (TARGET_CPU_CPP_BUILTINS): Add code for amdfam10.
        Define TARGET_CPU_DEFAULT_amdfam10.
        (TARGET_CPU_DEFAULT_NAMES): Add amdfam10.
        (processor_type): Add PROCESSOR_AMDFAM10.

        * config/i386/i386.md: Add amdfam10 as a new cpu attribute to match
        processor_type in config/i386/i386.h.
        Enable imul peepholes for TARGET_AMDFAM10.

        * config.gcc: Add support for --with-cpu option for amdfam10.

        * config/i386/i386.c (amdfam10_cost): New variable.
        (m_AMDFAM10): New macro.
        (m_ATHLON_K8_AMDFAM10): New macro.
        (x86_use_leave, x86_push_memory, x86_movx, x86_unroll_strlen,
        x86_cmove, x86_3dnow_a, x86_deep_branch, x86_use_simode_fiop,
        x86_promote_QImode, x86_integer_DFmode_moves,
        x86_partial_reg_dependency, x86_memory_mismatch_stall,
        x86_accumulate_outgoing_args, x86_arch_always_fancy_math_387,
        x86_sse_partial_reg_dependency, x86_sse_typeless_stores,
        x86_use_ffreep, x86_use_incdec, x86_four_jump_limit,
        x86_schedule, x86_use_bt, x86_cmpxchg16b, x86_pad_returns):
        Enable/disable for amdfam10.
        (override_options): Add amdfam10_cost to processor_target_table.
        Set up PROCESSOR_AMDFAM10 for amdfam10 entry in
        processor_alias_table.
        (ix86_issue_rate): Add PROCESSOR_AMDFAM10.
        (ix86_adjust_cost): Add code for amdfam10.

2007-02-05  Harsha Jagasia  <harsha.jagasia@amd.com>

        * config/i386/i386.opt: Add new Advanced Bit Manipulation (-mabm)
        instruction set feature flag. Add new (-mpopcnt) flag for popcnt
        instruction. Add new SSE4A (-msse4a) instruction set feature flag.
        * config/i386/i386.h: Add builtin definition for SSE4A.
        * config/i386/i386.md: Add support for ABM instructions
        (popcnt and lzcnt).
        * config/i386/sse.md: Add support for SSE4A instructions
        (movntss, movntsd, extrq, insertq).
        * config/i386/i386.c: Add support for ABM and SSE4A builtins.
        Add -march=amdfam10 flag.
        * config/i386/ammintrin.h: Add support for SSE4A intrinsics.
        * doc/invoke.texi: Add documentation on flags for sse4a, abm, popcnt
        and amdfam10.
        * doc/extend.texi: Add documentation for SSE4A builtins.

2007-02-05  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (constantpool_mem_p): Skip over SUBREGs.

2007-02-05  Richard Guenther  <rguenther@suse.de>

        * tree-vectorizer.h (vectorizable_function): Add argument type
        argument, change return type.
        * tree-vect-patterns.c (vect_recog_pow_pattern): Adjust caller.
        * tree-vect-transform.c (vectorizable_function): Handle extra
        argument, return vectorized function decl.
        (build_vectorized_function_call): Remove.
        (vectorizable_call): Handle calls with result and argument types
        differing.  Handle loop vectorization factor correctly.
        * targhooks.c (default_builtin_vectorized_function): Adjust for
        extra argument.
        * targhooks.h (default_builtin_vectorized_function): Likewise.
        * target.h (builtin_vectorized_function): Add argument type
        argument.
        * config/i386/i386.c (ix86_builtin_vectorized_function): Handle
        extra argument, allow vectorizing of lrintf.
        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Adjust
        documentation of target hook.

2007-02-05  Hans-Peter Nilsson  <hp@axis.com>

        PR target/30665
        * config/cris/cris.md ("*andsi_movu", "*andsi_clear", "*andhi_movu")
        ("*andhi_clear", andu (casesi+45)): For size-changed operand where
        memory is allowed, require !side_effects_p, not just !MEM_VOLATILE_P.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <REAL_PART>: Test for availability of
        BUILT_IN_COS before simplifying REAL_PART(CEXPI)) to COS.
        <IMAG_PART>: Likewise, check for availability of BUILT_IN_SIN.
        * builtins.c (fold_builtin_sincos): Check for TARGET_C99_FUNCTIONS
        before canonicalizing sincos to cexpi.
        (fold_builtin_cexp): Likewise, for canonicalizing cexp to cexpi.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * config/alpha/alpha.c (alpha_add_builtins): New Helper function.
        Set TREE_READONLY and TREE_NOTHROW directly, not via attributes.
        (alpha_init_builtins): Use alpha_add_builtins to process tables.

2007-02-05  Roger Sayle  <roger@eyesopen.com>

        * mips-tfile.c (initialize_init_file): Correct endianness test.

2007-02-05  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.md (pushdi-1, pushdi, movsi+1): Don't use
        the 'y' constraint.

2007-02-05  Richard Sandiford  <richard@codesourcery.com>

        * dwarf2out.c (dwarf2out_frame_debug_expr): Record the register
        saves in a PARALLEL before the register assignments.

2007-02-05  Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (DWARF_ALT_FRAME_RETURN_COLUMN): Do not require
        DWARF_FRAME_RETURN_COLUMN to be a general register.
        * dwarf2out.c (init_return_column_size): New function, split from...
        (expand_builtin_init_dwarf_reg_sizes): ...here.  Allow both
        DWARF_FRAME_RETURN_COLUMN and DWARF_ALT_FRAME_RETURN_COLUMN
        to be nongeneral registers.
        * config/m68k/m68k.h (DWARF_FRAME_REGNUM): Only map FP and
        integer registers.
        (DWARF_FRAME_REGISTERS, DWARF_FRAME_RETURN_COLUMN): Define.
        (DWARF_ALT_FRAME_RETURN_COLUMN): Define.

2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgcleanup.c (try_optimize_cfg): Avoid removing ENTRY_BLOCK_PTR.

2007-02-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloopmanip.c (loop_delete_branch_edge): Removed.
        (remove_path): Use can_remove_branch_p and remove_branch instead
        of loop_delete_branch_edge.
        * tree-ssa-loop-manip.c (scale_dominated_blocks_in_loop): New function.
        (tree_transform_and_unroll_loop): Remove dead branches immediately.
        Update profile using scale_dominated_blocks_in_loop.
        * cfghooks.c (can_remove_branch_p, remove_branch): New functions.
        * cfghooks.h (struct cfg_hooks): Add can_remove_branch_p.
        (can_remove_branch_p, remove_branch): Declare.
        * tree-cfg.c (tree_can_remove_branch_p): New function.
        (tree_cfg_hooks): Add tree_can_remove_branch_p.
        * cfgrtl.c (rtl_can_remove_branch_p): New function.
        (rtl_cfg_hooks, cfg_layout_rtl_cfg_hook): Add rtl_can_remove_branch_p.

2007-02-05  Jan Hubicka  <jh@suse.cz>

        PR middle-end/30696
        * ipa-inline.c (cgraph_clone_inlined_nodes): When there are unanalyzed
        nodes in cgraph, don't remove offline copy of the function.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
        vectors might cause maybe_lookup_element_for_expr to be called
        on non-sra-candidate.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/bfin/bfin-modes.def, config/bfin/bfin.c,
        config/bfin/bfin.md, config/bfin/predicates.md: Follow
        spelling conventions.

2007-02-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30636
        * fold-const.c (try_move_mult_to_index): Make sure to not
        overflow one dimension of a multi-dimensional array access.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * passes.c (init_optimization_passes): Reindent.

2007-02-04  Jan Hubicka  <jh@suse.cz>
            Eric Botcazou  <ebotcazou@adacore.com>

        * tree-optimize.c (has_abnormal_outgoing_edge_p): Move to...
        (execute_fixup_cfg): Break out the abnormal goto code.
        * tree-inline.c (has_abnormal_outgoing_edge_p): ...here.
        (make_nonlocal_label_edges): Move here from execute_fixup_cfg.
        (optimize_inline_calls): Call make_nonlocal_label_edges.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Return
        true when something was changed.
        (rename_ssa_copies): When something was changed, do
        TODO_remove_unused_locals.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
        add TODO_remove_unused_locals when instruction was removed.

2007-02-04  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (try_inline): Improve debug output; work on already
        inline edges too.
        (cgraph_decide_inlining_incrementally): Indent; improve debug output;
        call try_inline for already inlined edges too when flattening;
        inline also functions that make callee growth but overall unit size
        reduce.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/m32c/bitops.md, config/m32c/jump.md,
        config/m32c/m32c.c, config/m32c/m32c.h, config/m32r/m32r.c,
        config/m32r/m32r.h, config/m32r/m32r.md,
        config/m32r/predicates.md, config/m68hc11/larith.asm,
        config/m68hc11/m68hc11.c, config/m68hc11/m68hc11.h,
        config/m68k/m68k.h, config/mcore/mcore.md, config/mips/4k.md,
        config/mips/mips-protos.h, config/mips/mips.c,
        config/mips/mips.h, config/mips/mips.md, config/mips/mips16.S,
        config/mn10300/mn10300.h, config/mn10300/predicates.md,
        config/mt/mt.c, config/mt/mt.h, config/mt/mt.md: Follow
        spelling conventions.

        * config/v850/v850.c, config/v850/v850.h, config/v850/v850.md:
        Follow spelling conventions.

2007-02-03  Douglas Gregor  <doug.gregor@gmail.com>

        * c-opts.c (c_common_post_options): If C++0x mode is enabled, don't
        warn about C++0x compatibility.

2007-02-04  Kazu Hirata  <kazu@codesourcery.com>

        * config/h8300/h8300.c, config/h8300/h8300.h,
        config/h8300/h8300.md: Follow spelling conventions.

2007-02-03  Uros Bizjak  <ubizjak@gmail.com>

        PR middle-end/30667
        * combine.c (try_combine): Do not substitute source operand
        with constants wider than 2 * HOST_BITS_PER_WIDE_INT.

2007-02-03  Jan Hubicka  <jh@suse.cz>

        PR gcov-profile/30650
        * value-prof.c (stringop_block_profile): Fix handling of size counter;
        do not divide by zero for never executed counters.
        (tree_find_values_to_profile): Fix counters.
        * gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.

2007-02-03  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simple_move_operand): New static function,
        broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
        operands.
        (simple_move): Call simple_move_operand.
        (find_decomposable_subregs): Add special handling of MEMs.
        (can_decompose_p): Rename from cannot_decompose_p.  Reverse
        meaning of return value.  If we see a hard register, test whether
        it can store a word_mode value.  Change all callers.

2007-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.md (addvdi3, addvsi3, subvdi3, subvsi3, negvdi2, negvsi2): New
        ftrapv insns and expanders.
        (subdi3): Change define_expand operand 1 to arith11_operand, and
        operand 2 to reg_or_0_operand.  Change constraints of 64-bit insn
        pattern to handle reg_or_0 operands.  Revise 32-bit insn pattern to
        handle 11-bit constants and reg_or_0 operands in operands 1 and 2,
        respectively.

        PR middle-end/30174
        * varasm.c (notice_global_symbol): Treat global objects as weak when
        flag_shlib is true.

2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * emit-rtl.c (dconstpi): Delete.
        (dconstsqrt2): New.
        (init_emit_once): Delete dconstpi and init dconstsqrt2.
        * real.h (dconstpi): Delete.
        (dconstsqrt2): New.
        * builtins.c (fold_builtin_cabs): Use dconstsqrt2.
        (fold_builtin_hypot): Likewise.

2007-02-03  Tom Tromey  <tromey@redhat.com>

        PR driver/30246
        * gcc.c (cpp_unique_options): Any of -ggdb3, -gstabs3,
        -gcoff3, -gxcoff3, -gvms3 implies -dD.

2007-02-03  Kazu Hirata  <kazu@codesourcery.com>

        * c-decl.c, config/avr/avr.c, config/avr/avr.h,
        config/m68k/m68k.c, config/m68k/netbsd-elf.h,
        config/mn10300/mn10300.c, config/pdp11/pdp11.h,
        config/rs6000/cell.md, config/rs6000/darwin.h,
        config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
        config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
        jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
        tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
        typos.  Follow spelling conventions.
        * doc/invoke.texi: Follow spelling conventions.

2007-02-03  Roger Sayle  <roger@eyesopen.com>

        * simplify-rtx.c (simplify_relational_operation_1): Implement some
        canonicalization transformations that attempt to simplify integer
        constant comparisons to become comparisons against zero.

2007-02-03  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_cabs): Fold cabs(x+xi) into
        fabs(x)*sqrt(2).
        * fold-const.c (fold_binary): Fix comment typos.  Fold complex
        (x,0)-(0,y) into (x,-y).  Likewise (0,y)-(x,0) into (-x,y).

2007-02-02  Mike Stump  <mrs@apple.com>

        * config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
        * config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add.
        (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to
        generate a branch island.

2007-02-02  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/xtensa.c (smalloffset_mem_p): Use BASE_REG_P.
        (xtensa_legitimate_address_p): New.
        (xtensa_legitimize_address): New.
        (xtensa_output_addr_const_extra): New.
        * config/xtensa/xtensa.h (REG_OK_STRICT_FLAG): Define.
        (BASE_REG_P): New.
        (REG_OK_FOR_BASE_P): Use BASE_REG_P.
        (GO_IF_LEGITIMATE_ADDRESS): Move code to xtensa_legitimate_address_p.
        (LEGITIMIZE_ADDRESS): Move code to xtensa_legitimize_address.
        (OUTPUT_ADDR_CONST_EXTRA): Move code to xtensa_output_addr_const_extra.
        * config/xtensa/xtensa-protos.h (xtensa_legitimate_address_p): New.
        (xtensa_legitimize_address): New.
        (xtensa_output_addr_const_extra): New.

2007-02-02  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.c (ia64_print_operand): Fix compare strings.

2007-02-02  Ian Lance Taylor  <iant@google.com>

        * expmed.c (expand_divmod): Add comment.

2007-02-02  Kazu Hirata  <kazu@codesourcery.com>

        * emit-rtl.c (renumber_insns): Remove.
        * flags.h: Remove the extern for flag_renumber_insns.
        * rtl.h: Remove the prototype for renumber_insns.
        * toplev.c (flag_renumber_insns): Remove.

2007-02-02  Hui-May Chang  <hm.chang@apple.com>

        Revert for x86 darwin:
        2005-06-19  Uros Bizjak  <uros@kss-loka.si>

        * config/i386/i386.c (ix86_function_arg_regno_p): Put back the
        code before the following patch under TARGET_MACHO.
        (ix86_function_value_regno_p): Likewise.

2007-02-02  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * fold-const.c (negate_expr_p, fold_negate_expr): Handle
        COMPLEX_EXPR.

2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        PR target/29682
        * config/ia64/ia64.c (ia64_speculate_insn): Restrict to memory loads to
        general or fp registers.  Add comments.
        * config/ia64/ia64.md (reg_pred_prefix): Add comment.

2007-02-02  Paolo Bonzini  <bonzini@gnu.org>

        * pointer-set.c (insert_aux): Only return insertion slot.
        (pointer_set_insert): Adjust.
        (pointer_set_traverse, struct pointer_map_t, pointer_map_create,
        pointer_map_destroy, pointer_map_insert, pointer_map_contains,
        pointer_map_traverse): New.
        * pointer-set.h (pointer_set_traverse, struct pointer_map_t,
        pointer_map_create,  pointer_map_destroy, pointer_map_insert,
        pointer_map_contains, pointer_map_traverse): Declare.

2007-02-02  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/30473
        * builtins.c (fold_builtin_sprintf): Do not attempt to optimize
        sprintf (str, "%s").  Do not optimize sprintf (str, "nopercent", p++).

2007-02-02  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

        * sched-int.h (ds_to_dk, dk_to_ds): Declare functions.

        (struct _dep): New type.
        (dep_t): New typedef.
        (DEP_PRO, DEP_CON, DEP_KIND): New access macros.
        (DEP_STATUS): New access macro.  The macro with the same name was
        renamed to DEP_LINK_STATUS.
        (dep_init): Declare function

        (struct _dep_link): New type.
        (dep_link_t): New typedef.
        (DEP_LINK_NODE, DEP_LINK_NEXT, DEP_LINK_PREV_NEXTP): New access macros.
        (DEP_LINK_DEP, DEP_LINK_PRO, DEP_LINK_CON, DEP_LINK_KIND): New macros.
        (DEP_LINK_STATUS): New macro.
        (debug_dep_links): New debug function.

        (struct _deps_list): New type.
        (deps_list_t): New typedef.
        (DEPS_LIST_FIRST): New access macro.
        (FOR_EACH_DEP_LINK): New cycle macro.
        (create_deps_list, free_deps_list, delete_deps_list): Declare
        functions.
        (deps_list_empty_p, debug_deps_list, add_back_dep_to_deps_list): Ditto.
        (find_link_by_pro_in_deps_list, find_link_by_con_in_deps_list): Ditto.
        (copy_deps_list_change_con): Ditto.

        (move_dep_link): Declare function.

        (struct _dep_node): New type.
        (dep_node_t): New typedef.
        (DEP_NODE_BACK, DEP_NODE_DEP, DEP_NODE_FORW): New access macros.

        (struct haifa_insn_data.back_deps): New field to hold backward
        dependencies of the insn.
        (struct haifa_insn_data.depend): Rename to forw_deps.  Change its type
        to deps_list_t.
        (struct haifa_insn_data.resolved_deps): Rename to resolved_back_deps.
        Change its type to deps_list_t.
        (INSN_BACK_DEPS): New access macro to use instead of LOG_LINKS.
        (INSN_DEPEND): Rename to INSN_FORW_DEPS.
        (RESOLVED_DEPS): Rename to INSN_RESOLVED_BACK_DEPS.

        (INSN_COST): Move to haifa-sched.c.  Use insn_cost () instead.

        (DEP_STATUS): Rename to DEP_LINK_STATUS.  Fix typo in the comment.

        (add_forw_dep, delete_back_forw_dep, insn_cost): Update declaration and
        all callers.
        (dep_cost): Declare.

        * sched-deps.c (CHECK): New macro to (en/dis)able sanity checks.
        (ds_to_dk, dk_to_ds): New functions.

        (init_dep_1): New static function.
        (init_dep): New function.
        (copy_dep): New static function.

        (dep_link_consistent_p, attach_dep_link, add_to_deps_list): New static
        functions.
        (detach_dep_link): New static function.
        (move_dep_link): New function.

        (dep_links_consistent_p, dump_dep_links): New static functions.
        (debug_dep_links): New debugging function.

        (deps_obstack, dl_obstack, dn_obstack): New static variables.

        (alloc_deps_list, init_deps_list): New static functions.
        (create_deps_list): New function.
        (clear_deps_list): New static function.
        (free_deps_list, delete_deps_list, deps_list_empty_p): New functions.
        (deps_list_consistent_p, dump_deps_list): New static functions.
        (debug_deps_list): New function.
        (add_back_dep_to_deps_list, find_link_by_pro_in_deps_list): New
        functions.
        (find_link_by_con_in_deps_list, copy_deps_list_change_con): Ditto.

        (maybe_add_or_update_back_dep_1, add_or_update_back_dep_1): Update to
        use new scheduler dependencies lists.
        (add_back_dep, delete_all_dependences, fixup_sched_groups): Ditto.
        (sched_analyze): Ditto.  Initialize dependencies lists.
        (add_forw_dep, compute_forward_dependences): Update to use new
        scheduler dependencies lists.

        (init_dependency_caches): Init deps_obstack.
        (free_dependency_caches): Free deps_obstack.

        (adjust_add_sorted_back_dep, adjust_back_add_forw_dep): Update to use
        new scheduler dependencies lists.
        (delete_forw_dep, add_or_update_back_forw_dep): Ditto.
        (add_back_forw_dep, delete_back_forw_dep): Ditto.

        * sched-rgn.c (set_spec_fed, find_conditional_protection, is_pfree):
        Update to use new scheduler dependencies lists.
        (is_conditionally_protected, is_prisky, add_branch_dependences): Ditto.
        (debug_dependencies): Ditto.
        (schedule_region): Update comments.

        * sched-ebb.c (earliest_block_with_similiar_load): Update to use new
        scheduler dependencies lists.
        (schedule_ebb): Update comments.

        * rtl.def (DEPS_LIST): Remove.

        * lists.c (unused_deps_list): Remove.
        (free_list): Update assertions.

        (alloc_DEPS_LIST, free_DEPS_LIST_list, free_DEPS_LIST_node): Remove.
        (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.

        * rtl.h (free_DEPS_LIST_list, alloc_DEPS_LIST): Remove declarations.
        (remove_free_DEPS_LIST_elem, copy_DEPS_LIST_list): Ditto.

        * haifa-sched.c (comments): Update.
        (insn_cost1): Remove.  Inline the code into insn_cost ().
        (insn_cost): Update to use new scheduler dependencies lists.  Move
        processing of the dependency cost to dep_cost ().
        (dep_cost): New function.  Use it instead of insn_cost () when
        evaluating cost of the dependency.  Use compatible interface to
        interact with the target.
        (priority): Update to use new scheduler dependencies lists.
        (rank_for_schedule): Ditto.  Optimize heuristic that prefers the insn
        with greater number of insns that depend on the insn.
        (schedule_insn): Update to use new scheduler dependencies lists.  Add
        code to free backward dependencies lists.  Inline and optimize code
        from resolve_dep () - see PR28071.
        (ok_for_early_queue_removal): Update to use new scheduler dependencies
        lists.  Update call to targetm.sched.is_costly_dependence hook.

        (fix_inter_tick, try_ready, fix_tick_ready): Update to use new
        scheduler dependencies lists.

        (resolve_dep): Remove.  Move the logic to schedule_insn ().
        (init_h_i_d): Initialize dependencies lists.

        (process_insn_depend_be_in_spec): Rename to
        process_insn_forw_deps_be_in_spec.  Update to use new scheduler
        dependencies lists.
        (add_to_speculative_block, create_check_block_twin, fix_recovery_deps):
        Update to use new scheduler dependencies lists.
        (clear_priorities, calc_priorities, add_jump_dependencies): Ditto.

        * ddg.c (create_ddg_dependence, create_ddg_dep_no_link): Update to use
        new scheduler dependencies lists.
        (build_intra_loop_deps): Ditto.

        * target.h (struct _dep): Declare to use in
        gcc_target.sched.is_costly_dependence.
        (struct gcc_target.sched.adjust_cost): Fix typo.
        (struct gcc_target.sched.is_costly_dependence): Change signature to use
        single dep_t parameter instead of an equivalent triad.
        (struct gcc_target.sched.adjust_cost_2): Remove.

        * target-def.h (TARGET_SCHED_ADJUST_COST_2): Remove.

        * reg-notes.def (DEP_TRUE, DEP_OUTPUT, DEP_ANTI): Update comments.

        * doc/tm.texi (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Update
        documentation.
        (TARGET_SCHED_ADJUST_COST_2): Remove documentation.

        * doc/rtl.texi (LOG_LINKS): Remove part about instruction scheduler.
        (REG_DEP_TRUE): Document.

        * config/ia64/ia64.c (ia64_adjust_cost_2): Rename to ia64_adjust_cost.
        Change signature to correspond to the targetm.sched.adjust_cost hook.
        Update use in TARGET_SCHED_ADJUST_COST_2.
        (TARGET_SCHED_ADJUST_COST_2): Rename to TARGET_SCHED_ADJUST_COST.
        (ia64_dependencies_evaluation_hook, ia64_dfa_new_cycle): Update to use
        new scheduler dependencies lists.
        (ia64_gen_check): Ditto.

        * config/mips/mips.c (vr4130_swap_insns_p): Update to use new scheduler
        dependencies lists.

        * config/rs6000/rs6000.c (rs6000_is_costly_dependence): Change
        signature to correspond to the targetm.sched.is_costly_dependence hook.
        (is_costly_group): Update to use new scheduler dependencies lists.

        * config/spu/spu.c (spu_sched_adjust_cost): Use insn_cost () function
        instead of INSN_COST () macro.

2007-02-01  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (resolve_clobber): Handle a subreg of a concatn.

2007-02-01  Guy Martin  <gmsoft@gentoo.org>

        * pa.md (tp_load): Correct mfctl instruction syntax.

2007-02-01  Geoffrey Keating  <geoffk@apple.com>

        * config/rs6000/rs6000.c (rs6000_stack_info): Correct
        altivec_padding_size calculation on AIX.  Improve comment, add
        assert to verify that it's right.

        * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Don't define for
        64-bit.

2007-2-01  Seongbae Park  <seongbae.park@gmail.com>

        PR inline-asm/28686
        * global.c (global_alloc): Add mising initialization of
        ELIMINABLE_REGSET.

2007-02-01  Roger Sayle  <roger@eyesopen.com>

        * alias.c (init_alias_analysis): Correct whitespace.
        * bb-reorder.c (fix_edges_for_rarely_executed_code,
        partition_hot_cold_basic_blocks): Likewise.
        * builtins.c (expand_builtin_printf, expand_builtin_fprintf,
        expand_builtin_sprintf, fold_builtin_carg, fold_builtin_sprintf,
        maybe_emit_sprintf_chk_warning, fold_builtin_sprintf_chk,
        fold_builtin_snprintf_chk, fold_builtin_printf,
        fold_builtin_fprintf, do_mpfr_ckconv, do_mpfr_arg1, do_mpfr_arg2,
        do_mpfr_arg3, do_mpfr_sincos): Likewise.
        * cfgcleanup.c (cleanup_cfg): Likewise.
        * cfgexpand.c (tree_expand_cfg): Likewise.
        * fold-const.c (fold_binary) <RDIV_EXPR>: Likewise.
        * function.c (get_next_funcdef_no): Likewise.
        * gengtype.c (main): Likewise.
        * genmodes.c (main): Likewise.
        * gcse.c (bypass_conditional_jumps, print_ldst_list): Likewise.
        * haifa-sched.c (schedule_block, extend_h_i_d): Likewise.
        * ifcvt.c (noce_emit_move_insn): Likewise.
        * modulo-sched.c (generate_prolog_epilog, sms_schedule_by_order):
        Likewise.
        * stor-layout.c (get_best_mode): Likewise.
        * tree-ssa-loop-niter.c (get_val_for): Likewise.
        * tree-ssa-structalias.c (get_varinfo, get_varinfo_fc,
        scc_visit, do_ds_constraint, do_complex_constraint, label_visit,
        perform_var_substitution, solve_graph): Likewise.
        * tree-vrp.c (vrp_finalize): Likewise.

2007-02-01  Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c (simplify_gen_subreg_concatn): If we ask for the
        high part of a paradoxical subreg, return a constant zero.

2007-02-01  Zdenek Dvorak <dvorakz@suse.cz>

        * toplev.c (lang_dependent_init): Call init_set_costs.
        * loop-init.c (loop_optimizer_init): Do not call init_set_costs.

2007-02-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30656
        * fold-const.c (fold_negate_expr): Allow negating a
        constant if overflow does not change.

2007-02-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/c-tree.texi (Expression trees): Improve markup.
        * doc/tm.texi (Register Classes, Addressing Modes)
        (Floating Point): Fix spacing after abbreviations.  Fix some
        typos.

2007-02-01  Ben Elliston  <bje@au.ibm.com>

        * doc/invoke.texi: Replace "bugfix" with "bug fix" throughout.
        * doc/contrib.texi: Likewise.
        * doc/install.texi: Likewise.

2007-01-31  Richard Henderson  <rth@redhat.com>
            Ian Lance Taylor  <iant@google.com>

        * lower-subreg.c: New file.
        * rtl.def (CONCATN): Define.
        * passes.c (init_optimization_passes): Add pass_lower_subreg and
        pass_lower_subreg2.
        * emit-rtl.c (update_reg_offset): New static function, broken out
        of gen_rtx_REG_offset.
        (gen_rtx_REG_offset): Call update_reg_offset.
        (gen_reg_rtx_offset): New function.
        * regclass.c: Revert patch of 2006-03-05, restoring
        reg_scan_update.
        (clear_reg_info_regno): New function.
        * dwarf2out.c (concatn_loc_descriptor): New static function.
        (loc_descriptor): Handle CONCATN.
        * common.opt (fsplit_wide_types): New option.
        * opts.c (decode_options): Set flag_split_wide_types when
        optimizing.
        * timevar.def (TV_LOWER_SUBREG): Define.
        * rtl.h (gen_reg_rtx_offset): Declare.
        (reg_scan_update): Declare.
        * regs.h (clear_reg_info_regno): Declare.
        * tree-pass.h (pass_lower_subreg): Declare.
        (pass_lower_subreg2): Declare.
        * doc/invoke.texi (Option Summary): List -fno-split-wide-types.
        (Optimize Options): Add -fsplit-wide-types to -O1 list.  Document
        -fsplit-wide-types.
        * doc/rtl.texi (Regs and Memory): Document concat and concatn.
        * Makefile.in (OBJS-common): Add lower-subreg.o.
        (lower-subreg.o): New target.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * config/sh/sh.h (HAVE_SECONDARY_RELOADS): Remove.

2007-01-31  Anatoly Sokolov <aesok@post.ru>

        PR target/19087
        * config/avr/avr.c (DWARF2_ADDR_SIZE): Define.

2007-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/29335
        * builtins.c (fold_builtin_sqrt): Use MPFR for constant args.

2007-01-31  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.h: Include vec-prim.h.
        (enum li_flags): Remove LI_ONLY_OLD.
        (loop_iterator): Changed.
        (fel_next, fel_init): Iterate over loop tree.
        (FOR_EACH_LOOP_BREAK): New macro.
        * loop-unswitch.c (unswitch_loops): Do not pass LI_ONLY_OLD to
        FOR_EACH_LOOP.
        * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Ditto.
        * modulo-sched.c (sms_schedule): Ditto.
        * tree-vectorizer.c (vectorize_loops): Ditto.
        * doc/loop.texi: Update information on loop numbering and behavior of
        FOR_EACH_LOOP wrto new loops.
        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
        add_to_evolution_1): Test nestedness of loops instead of comparing
        their numbers.
        * tree-chrec.c (chrec_fold_plus_poly_poly,
        chrec_fold_multiply_poly_poly, chrec_evaluate,
        hide_evolution_in_other_loops_than_loop, chrec_component_in_loop_num,
        reset_evolution_in_loop): Ditto.
        * Makefile.in (CFGLOOP_H): Add vecprim.h dependency.

2007-01-31  Dirk Mueller  <dmueller@suse.de>

        * c-common.c (warn_about_parentheses): Separate warning about
        un-parenthized sequence of comparison operators from the one
        which is supposed to warn about x <= y <= z.

2007-01-31  Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_isinf.
        (isinf_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize isinf_optab.
        * genopinit.c (optabs): Implement isinf_optab using isinf?f2
        patterns.
        * builtins.c (mathfn_built_in): Handle BUILT_IN_ISINF{,F,L}.
        (expand_builtin_interclass_mathfn): Expand BUILT_IN_ISINF{,F,L}
        using isinf_optab.
        (expand_builtin): Expand BUILT_IN_ISINF{,F,L} using
        expand_builtin_interclass_mathfn.
        * reg_stack.c (subst_stack_regs_pat): Handle UNSPEC_FXAM.
        * config/i386/i386.md (UNSPEC_FXAM): New constant.
        (fxam<mode>2_i387): New insn pattern.
        (isinf<mode>2) New expander to implement isinf, isinff and isinfl
        built-in functions as x87 inline asm.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/unwind-arm.h (_sleb128_t, _uleb128_t): New.

2007-01-30  Eric Christopher  <echristo@apple.com>

        * config.gcc: Add geode.

2007-01-31  Kazu Hirata  <kazu@codesourcery.com>

        * cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
        ipa-inline.c, tree-profile.c, tree-ssa-live.c,
        tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
        value-prof.c: Fix comment typos.

2007-01-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/24745
        * doc/invoke.texi (Wpointer-arith): Document warning.

2007-01-30  Janis Johnson  <janis187@us.ibm.com>

        * doc/extend.texi (Decimal Floating Types): Remove decfloat.h from
        the list of discrepancies from the draft TR.

2007-01-30  Dirk Mueller  <dmueller@suse.de>

        PR c++/30601
        * doc/invoke.texi (-Wreturn-type): Update description to
        match new behavior.

2007-01-30  Richard Sandiford  <richard@codesourcery.com>

        * cfgrtl.c (try_redirect_by_replacing_jump): Check only_sets_cc0_p.

2007-01-30  Uros Bizjak  <ubizjak@gmail.com>

        * builtins.c (expand_builtin_int_interclass_roundingfn): New function
        to handle optabs that operate on floating point input argument and
        output to integer output.
        (expand_builtin_mathfn) [BUILT_IN_ILOGB]: Move from here ...
        (expand_builtin_interclass_mathfn) [BUILT_IN_ILOGB]: ... to here.
        (expand_builtin): Expand BUILT_IN_ILOGB{,F,L} using
        expand_builtin_interclass_mathfn ().
        * config/i386/i386.md (fxtractxf3_i387): Rename from *fxtractxf3_i387.
        (ilogbsi2): Remove.
        (ilogbxf2, ilogb<mode>2): New expanders to implement ilogb, ilogbf and
        ilogbl built-in functions as x87 intrinsics.

2007-01-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27657
        * dwarf2out.c (reference_to_unused): Query varpool if the
        variable was output.

2007-01-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/30313
        * passes.c (execute_one_pass): Reset in_gimple_form to not
        confuse non-unit-at-a-time mode.

2007-01-29  Roger Sayle  <roger@eyesopen.com>
            Richard Guenther  <rguenther@suse.de>

        * fold-const.c (round_up): Make HIGH an unsigned HOST_WIDE_INT to
        avoid undefined behaviour on overflow.  Use force_fit_type_double
        to construct the constant with the specified TREE_OVERFLOW.

2007-01-29  Janis Johnson  <janis187@us.ibm.com>

        * config/dfp-bit.c: Add parameterized support for fp exceptions.
        * config/dfp-bit.h: Ditto.

2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-decl.c (pop_scope): Replace warnings with call to
        warn_for_unused_label.
        * c-common.h (warn_for_unused_label): Declare.
        * c-common.c (warn_for_unused_label): Define.

2007-01-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * tree-optimize.c (update_inlined_to_pointers): Delete unused
        function.

2007-01-29  Janis Johnson  <janis187@us.ibm.com>

        * Makefile.in (USER_H): Remove decfloat.h.
        * ginclude/decfloat.h: Delete, moving contents to ...
        * ginclude/float.h: Add support for decimal floating point,
        guarded by __STDC_WANT_DEC_FP__.

2007-01-29  Mike Stump  <mrs@apple.com>

        * doc/gccint.texi (Top): Rename Loop Representation to Loop
        Analysis and Representation to resolve case insensitive conflict.
        * doc/loop.texi (Loop Analysis and Representation): Likewise.

2007-01-28  Daniel Berlin  <dberlin@dberlin.org>

        * tree.h (struct tree_memory_tag): Add aliases member.
        (MTAG_ALIASES): New macro.
        * tree-ssa-alias.c (alias_bitmap_obstack): New variable.
        (add_may_alias): Remove pointer-set. Update for may_aliases being
        a bitmap.
        (mark_aliases_call_clobbered): Update for may_aliases being a
        bitmap.
        (compute_tag_properties): Ditto.
        (create_partition_for): Ditto.
        (compute_memory_partitions): Ditto.
        (dump_may_aliases_for): Ditto.
        (is_aliased_with): Ditto.
        (add_may_alias_for_new_tag): Ditto.
        (rewrite_alias_set_for): Rewrite for may_aliases being a bitmap.
        (compute_is_aliased): New function.
        (compute_may_aliases): Call compute_is_aliased).
        (init_alias_info): Initialize alias_bitmap_obstack.
        (union_alias_set_into): New function.
        (compute_flow_sensitive_aliasing): Use union_aliases_into.
        (have_common_aliases_p): Rewrite to take two bitmaps and use
        intersection.
        (compute_flow_insensitive_aliasing): Stop using pointer-sets.
        Update for bitmaps.
        (finalize_ref_all_pointers): Update for add_may_alias changes.
        (new_type_alias): Ditto.
        * tree-flow-inline.h (may_aliases): Return a bitmap.
        * tree-dfa.c (dump_variable): Check for MTAG_P'ness.
        * tree-ssa.c (verify_flow_insensitive_alias_info): Update for
        may_aliases being a bitmap.
        * tree-flow.h (struct var_ann_d): Remove may_aliases member.
        may_aliases now returns a bitmap.
        * tree-ssa-structalias.c (merge_smts_into): Update for may_aliases
        being a bitmap.
        * tree-ssa-operands.c (add_virtual_operand): Update for
        may_aliases being a bitmap.

2007-01-29  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/30630
        * tree-ssa-structalias.c (do_complex_constraint): Mark correct
        variable as changed.

2007-01-29  Simon Martin  <simartin@users.sourceforge.net>

        PR c++/28266
        * gimplify.c (gimplify_target_expr): Make sure that the TARGET_EXPR is
        expanded only once even if an error occurs.

2007-01-29  Ben Elliston  <bje@au.ibm.com>

        * gcov-io.h (__gcov_indirect_call_profiler): Declare.
        (__gcov_average_profiler): Likewise.
        (__gcov_ior_profiler): Likewise.
        (__gcov_merge_ior): Likewise.

2007-01-28  Jan Hubicka  <jh@suse.cz>

        * builtins.c (expand_builtin_memset): Fix typo in my last patch.
        * value-prof.c (stringop_block_profile): Likewise.

2007-01-28  Jan Hubicka  <jh@suse.cz>

        * expr.c (emit_block_move_via_movmem, emit_block_move_via_libcall): Add
        variant handling histograms; add wrapper.
        (clear_storage_via_libcall): Export.
        (emit_block_move_hints): Break out from ...; add histograms.
        (emit_block_move): ... this one.
        (clear_storage_hints): Break out from ...; add histograms.
        (clear_storage): ... this one.
        (set_storage_via_memset): Handle histogram.
        * expr.h (emit_block_move_via_libcall, emit_block_move_hints): Declare.
        (clear_storage_hints, clear_storage_via_libcall): Declare.
        (set_storage_via_setmem): Update prototype.
        * doc/md.texi (movmem, setmem): Document new arguments.

        * value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
        new histograms.
        (stringop_block_profile): New global function.
        (tree_stringops_values_to_profile): Profile block size and alignment.
        * value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
        HIST_TYPE_IOR.
        (struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
        (stringop_block_profile): Declare.
        * builtins.c: Include value-prof.h.
        (expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
        * gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
        (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
        (GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
        * profile.c (instrument_values): Add new counters.
        * cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
        calls.
        * tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
        (tree_init_edge_profiler): Build new profilers.
        (tree_gen_average_profiler, tree_gen_ior_profiler): New.
        (pass_tree_profile): Add dump.
        (tree_profile_hooks): Update.
        * Makefile.in (LIBGCOV): Add new constants.
        * libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
        __gcov_ior_profiler): New.
        * i386.md (movmem/setmem expanders): Add new optional arguments.

2007-01-28  David Edelsohn  <edelsohn@gnu.org>

        * doc/md.texi (Standard Pattern Names): Document blockage pattern.

2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-unswitch.c: Include tree-inline.h.
        (tree_unswitch_single_loop): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-ssa-loop-manip.c: Include tree-inline.h.
        (can_unroll_loop_p): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
        Pass eni_size_weights to estimate_num_insns.
        * tree.h (init_inline_once): Export.
        * toplev.c (backend_init): Call init_inline_once.
        * cgraphunit.c (cgraph_process_new_functions,
        cgraph_analyze_function): Pass eni_inlining_weights to
        estimate_num_insns.
        * ipa-inline.c (compute_inline_parameters): Ditto.
        * tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
        to estimate_num_insns.
        (try_unroll_loop_completely): Pass eni_size_weights to
        tree_num_loop_insns.
        * tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
        ot estimate_num_insns.
        * tree-ssa-loop-prefetch.c: Include tree-inline.h.
        (loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
        * tree-inline.c (eni_inlining_weights, eni_size_weights,
        eni_time_weights): New variables.
        (init_inline_once): Initialize them.
        (struct eni_data): Mew.
        (estimate_num_insns_1, estimate_num_insns): Use weights.
        * tree-inline.h (struct eni_weights_d): New.
        (eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
        (estimate_num_insns): Declaration changed.
        * cfgloop.h (tree_num_loop_insns): Declaration changed.
        * Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
        tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.

2007-01-28  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-data-ref.c (conflict_fn): Assert that the number of affine
        relations in the conflict function is valid.

2007-01-27  Ian Lance Taylor  <iant@google.com>

        * common.opt: Add fstrict-overflow.
        * opts.c (decode_options): Set flag_strict_overflow if -O2.
        * flags.h (TYPE_OVERFLOW_WRAPS): Define.
        (TYPE_OVERFLOW_UNDEFINED): Define.
        (TYPE_OVERFLOW_TRAPS): Define.  This replaces TYPE_TRAP_SIGNED.
        Replace all uses.
        * tree.h (TYPE_TRAP_SIGNED): Don't define.
        * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_UNDEFINED.
        (fold_negate_expr): Likewise.
        (make_range): Likewise.
        (extract_muldiv_1): Likewise.
        (maybe_canonicalize_comparison): Likewise.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.
        (tree_expr_nonnegative_p): Likewise.
        (tree_expr_nonzero_p): Likewise.
        * tree-vrp.c (compare_values): Likewise.
        (extract_range_from_binary_expr): Likewise.
        (extract_range_from_unary_expr): Likewise.
        * tree-ssa-loop-niter.c (infer_loop_bounds_from_signedness):
        Likewise.
        (nowrap_type_p): Likewise.
        * tree-scalar-evolution.c (simple_iv): Likewise.
        * fold-const.c (negate_expr_p): Use TYPE_OVERFLOW_WRAPS.
        (build_range_check): Likewise.
        (extract_muldiv_1): Likewise.
        (fold_comparison): Likewise.
        * tree-vrp.c (vrp_int_const_binop): Likewise.
        (extract_range_from_unary_expr): Likewise.
        * convert.c (convert_to_integer): Likewise.
        * fold-const.c (fold_negate_expr): Use TYPE_OVERFLOW_TRAPS.
        (fold_comparison): Likewise.
        (fold_binary): Likewise.
        * optabs.c (optab_for_tree_code): Likewise.
        * tree-vectorizer.c (vect_is_simple_reduction): Likewise.
        * simplify-rtx.c (simplify_const_relational_operation): Check
        flag_strict_overflow and flag_trapv.
        (simplify_const_relational_operation): Likewise.
        * doc/invoke.texi (Option Summary): Mention -fstrict-overflow.
        (Optimize Options): Add -fstrict-overflow to -O2 list.  Document
        -fstrict-overflow.

2007-01-27  Roger Sayle  <roger@eyesopen.com>

        * tree.c (tree_fold_gcd): Delete.
        * tree.h (tree_fold_gcd): Remove prototype.
        * tree-data-ref.c (tree_fold_divides_p): Don't use tree_fold_gcd to
        test whether one constant integer is a multiple of another.  Instead
        call int_const_binop with TRUNC_MOD_EXPR and test for a zero result.
        * fold-const.c (multiple_of_p):  We've determined both TOP and
        BOTTOM are integer constants so we can call int_const_binop directly
        instead of the more generic const_binop.

2007-01-27  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (size_binop): In the fast-paths for X+0, 0+X, X-0 and
        1*X check that the constant hasn't overflowed, to preserve the
        TREE_OVERFLOW bit.
        (round_up): Provide an efficient implementation when rouding-up an
        INTEGER_CST to a power-of-two.

2007-01-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/sourcebuild.texi: Add comma for clarity.
        * doc/extend.texi: Fix some typos.
        * doc/passes.texi: Likewise.
        * doc/cppinternals.texi: Likewise.
        * doc/c-tree.texi: Likewise.
        * doc/tree-ssa.texi: Likewise.
        * doc/install.texi: Likewise.

2007-01-27  Jan Hubicka  <jh@suse.cz>

        * tree-sra.c (sra_walk_function): Don't rely on aliases being build.
        (pass_sra): Do not require alias information.
        * passes.c (init_optimization_passes): Add SRA

2007-01-27  Steven Bosscher  <steven@gcc.gnu.org>

        * tracer.c (rest_of_handle_tracer): We already cleaned
        up the CFG in tracer() so don't do it here again.
        * cfgcleanup.c (rest_of_handle_jump2): Don't repeat
        cleanup_cfg here, either.  And don't call renumber_insns.

        * cfgrtl.c (rtl_verify_flow_info_1): Don't verify that BB_END
        and BB_HEAD are in the insn stream here.  Instead make sure
        that BB_INSN is valid on all insns.  Also, do check here that
        there are no pending branch predictions...
        (rtl_verify_flow_info): ...instead of doing it here.  Checks
        for BB_END and BB_HEAD moved from rtl_verify_flow_info_1 to
        here.

2007-01-26  Roger Sayle  <roger@eyesopen.com>

        * config/i386/i386.c (ix86_swap_binary_operands_p): New helper
        function to simplify/factorize operand order canonicalization.
        (ix86_fixup_binary_operands): Reorganize using the above function.
        (ix86_binary_operator_ok): Likewise.

2007-01-27  Jakub Jelinek  <jakub@redhat.com>

        * genattrtab.c (struct attr_value_list, insn_code_values): Move to
        file scope from optimize_attrs.
        (simplify_test_exp): If insn_code_values is not NULL, use it to speed
        up search.
        (optimize_attrs): Clear insn_code_values after freeing it.

2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-address.c (create_mem_ref): Remove ", bsi" from
        a parts.base assignment.

2007-01-26  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-data-ref.c (dump_subscript): Use dump_conflict_function.
        (compute_subscript_distance, initialize_data_dependence_relation,
        finalize_ddr_dependent, analyze_ziv_subscript,
        analyze_siv_subscript_cst_affine,
        compute_overlap_steps_for_affine_univar,
        compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
        analyze_siv_subscript, analyze_miv_subscript,
        analyze_overlapping_iterations, subscript_dependence_tester_1,
        compute_self_dependence, free_dependence_relation): Work
        with affine_fn instead of chrecs.
        (dump_affine_function, dump_conflict_function, affine_function_equal_p,
        common_affine_function, affine_function_base,
        affine_function_constant_p, affine_fn_op, affine_fn_plus,
        affine_fn_minus, affine_fn_free, conflict_fn_not_known,
        conflict_fn_no_dependence, free_conflict_function, free_subscripts,
        conflict_fn, affine_fn_cst, affine_fn_univar): New functions.
        (all_chrecs_equal_p): Removed.
        * tree-data-ref.h (affine_fn, conflict_function): New types.
        (struct subscript): Change type of conflicting_iterations_in_a
        and conflicting_iterations_in_b.

2007-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR other/30182
        * config/pa/pa.h (TARGET_HPUX_11): New.
        * config/pa/pa-hpux11.h (TARGET_HPUX_11): New.
        * config/pa/pa.c (pa_init_builtins): Use TARGET_HPUX_11.

2007-01-26  Daniel Berlin  <dberlin@dberlin.org>
        Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (solve_graph): Handle case
        we merged the variable to another.

2007-01-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_1): Treat ccos and ccosh as 'even'
        functions.

        * fold-const.c (negate_mathfn_p): Treat casin, casinh, catan,
        catanh, cproj, csin, csinh, ctan and ctanh as 'odd' functions.

2007-01-25  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_cannot_change_mode_class): We don't
        allow changes to modes which don't fit in those registers.

        * reload1.c (choose_reload_regs): Check for invalid subregs before
        computing their locations, not after.

2007-01-25  Geoffrey Keating  <geoffk@apple.com>

        PR 25127
        * config/rs6000/rs6000.c (first_altivec_reg_to_save): On Darwin,
        save Altivec registers in an eh_return function.
        (compute_vrsave_mask): Likewise.
        (rs6000_stack_info): Correct AIX/Darwin stack alignment computation
        for saving Altivec registers.
        (rs6000_emit_prologue): Don't allocate stack twice in
        eh_return function.  Correct expected value of altivec_save_offset
        when using save_world.  Describe save of R0 to stack when using
        save_world.  Describe stack pointer adjustment when using
        save_world.  Remove duplicated eh_return parameter register saving.
        Update sp_offset variable after save_world.
        * config/rs6000/t-darwin (LIB2FUNCS_STATIC_EXTRA): Remove
        darwin-world.asm.
        (LIB2FUNCS_EXTRA): Add darwin-world.asm.
        * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): -m64
        implies Altivec.

2007-01-25  Steve Ellcey  <sje@cup.hp.com>

        * config.gcc (ia64*-*-hpux*): Make posix threads the default.

2007-01-25  Steve Ellcey  <sje@cup.hp.com>

        PR other/30182
        * config/pa/pa.c (pa_init_builtins): Set asm names for finite routines.
        * config/ia64/ia64.c (ia64_init_builtins):  Ditto.

2007-01-25  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-Wcoverage-mismatch): Document.
        * common.opt (-Wcoverage-mismatch): New warning option.
        * coverage.c (get_coverage_counts): Ignore coverage mismatch
        if -Wcoverage-mismatch is given.

2007-01-25  Razya Ladelsky  <razya@il.ibm.com>

        * ipa-cp.c (ipcp_insert_stage, ipcp_driver): Support for SSA.
        (ipcp_driver): Change to static definition.
        Add dumping of the ifunctions.
        (constant_val_insert): Remove unused parameter. Support for SSA.
        (ipcp_propagate_const): Support for SSA.
        (ipcp_profile_bb_print): Print only analyzed nodes.
        (ipcp_replace_map_create): Remove support for Fortran constant
        for now.
        * ipa-prop.c (ipa_method_modify_stmt,
        ipa_callsite_compute_param): Support for SSA.
        * ipa-prop.h (ipcp_driver): Remove declaration.
        (IS_VALID_TREE_MAP_INDEX): Add define.

2007-01-24  Geoffrey Keating  <geoffk@apple.com>

        * unwind-dw2.c (execute_stack_op): Handle DW_OP_swap.

2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/30447
        * builtins.c (fold_builtin_cabs): Use MPFR to evaluate a
        constant argument to cabs and do it without checking for
        -funsafe-math-optimizations.

2007-01-24  Douglas Gregor  <dgregor@osl.iu.edu>

        * c-common.h (RID_FIRST_CXX0X): New.
        (RID_LAST_CXX0X): New.
        * c-opts.c (c_common_handle_option): -Wc++0x-compat is triggered
        by -Wall.
        * c.opt (Wc++0x-compat): New.
        * doc/invoke.texi (-Wc++0x-compat): Document.

2007-01-24  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (fold_builtin_carg): New.
        (fold_builtin_1): Use it.

2007-01-24  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining): Initialize initial_insns.

        * ipa-inline.c (initial_insns, max_insns): Delete.
        (compute_max_insns): New function.
        (cgraph_decide_inlining_of_small_function): Use it; take minimal amount
        of insns as base for code growth.
        (cgraph_decide_inlining): Make initial_insns local; do not compute
        max_insns.
        * params.def (PARAM_INLINE_UNIT_GROWTH): Set to 60.
        * doc/invoke.texi (inline-unit-growth): Update docs.

2007-01-24  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.h (x86_cmpxchg16b): Remove const.
        (TARGET_CMPXCHG16B): Define to x86_cmpxchg16b.
        * config/i386/i386.c (x86_cmpxchg16b): Remove const.
        (override_options): Add PTA_CX16 flag.  Set x86_cmpxchg16b
        for CPUs that have PTA_CX16 set.

        PR middle-end/27416
        * gimplify.c (omp_check_private): New function.
        (gimplify_scan_omp_clauses): Use it for
        firstprivate/lastprivate/reduction.

        PR middle-end/30494
        * gimplify.c (omp_add_variable): Don't call omp_notice_variable
        on TYPE_SIZE_UNIT for GOVD_LOCAL VLAs.

        PR middle-end/30421
        * omp-low.c (lower_omp_for_lastprivate): Add dlist argument.
        If lower_lastprivate_clauses emits some statements, append them
        to dlist rather than body_p and to body_p append an initializer.
        (lower_omp_for): Adjust caller.

2007-01-24  Steve Ellcey  <sje@cup.hp.com>

        * target.h (globalize_decl_name): New.
        * target-def.h (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
        * output.h (default_globalize_decl_name): New.
        * varasm.c (asm_output_bss): Use globalize_decl_name instead of
        globalize_label.
        (globalize_decl): Ditto.
        (default_globalize_decl_name): New.
        * config/ia64/ia64.c (ia64_globalize_decl_name): New.
        (ia64_handle_version_id_attribute): New.
        (TARGET_ASM_GLOBALIZE_DECL_NAME): New.
        (ia64_asm_output_external): Use globalize_decl_name instead
        of globalize_label.
        * doc/extend.texi (version_id): New pragma.
        * doc/tm.texi (ARGET_ASM_GLOBALIZE_DECL_NAME): New target hook.

2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * unwind-dw2-fde.c (get_cie_encoding): Replaced _Unwind_Word with
        _uleb128_t and _Unwind_SWord with _sleb128_t.
        * unwind-dw2.c (extract_cie_info, execute_stack_op, execute_cfa_program,
        uw_frame_state_for, uw_update_context_1): Likewise.
        * unwind-c.c (parse_lsda_header, PERSONALITY_FUNCTION): Likewise.
        * unwind-pe.h (read_uleb128, read_sleb128,
        read_encoded_value_with_base): Likewise.
        * unwind-generic.h: Define _sleb128_t and _uleb128_t types.

2007-01-24  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Get the fndecl
        for cexp in the correct way.

2007-01-24  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (eliminate_unnecesary_stmts): Remove dead LHS of calls.

2007-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

        * c-cppbuiltin.c (builtin_define_type_sizeof): New function.
        (c_cpp_builtins): New builtin macros: __SIZEOF_INT__, __SIZEOF_LONG__,
        __SIZEOF_LONG_LONG__, __SIZEOF_SHORT__, __SIZEOF_POINTER__,
        __SIZEOF_FLOAT__, __SIZEOF_DOUBLE__, __SIZEOF_LONG_DOUBLE__,
        __SIZEOF_SIZE_T__, __SIZEOF_WCHAR_T__, __SIZEOF_WINT_T__ and
        __SIZEOF_PTRDIFF_T__.
        * doc/cpp.texi: Documentation for the new builtin macros added.

2007-01-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (tanxf2, tan<mode>2, atan<mode>2, log<mode>2,
        log10<mode>2, log2<mode>2, expxf2, exp10xf2, exp2xf2): Use op2
        instead of operands[2] to avoid access past the end of array.

2007-01-24  Richard Sandiford  <richard@codesourcery.com>

        * reload1.c (emit_reload_insns): Pass the reload register
        for a non-spill output reload through forget_old_reloads_1.

2007-01-23  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
        _SOFT_DOUBLE if doubles use software floating-point.
        * config/rs6000/libgcc-ppc-glibc.ver: Export additional long
        double functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
        * config/rs6000/darwin-ldouble.c: Also compile functions for
        hard-float without FPRs.  Use fmsub function for all __NO_FPRS__
        cases.  Compile extra functions if _SOFT_DOUBLE, not _SOFT_FLOAT.
        * config/rs6000/linuxspe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Remove
        commented-out long double override.
        (CPP_LONGDOUBLE_DEFAULT_SPEC): Likewise.
        * config/rs6000/eabispe.h: Likewise.
        * config/rs6000/rs6000.c (rs6000_override_options): Don't override
        long double for non-SPE.
        (rs6000_handle_option): Likewise.
        (invalid_e500_subreg): Disallow more subregs involding DImode,
        DFmode, TImode or TFmode.
        (rs6000_legitimate_offset_address_p): Check TFmode offsets for
        E500 double.
        (legitimate_lo_sum_address_p): Also check for TFmode for E500
        double.
        (rs6000_legitimize_address): Also handle TFmode for E500 double.
        (rs6000_legitimize_reload_address): Also handle TFmode for E500
        double.
        (rs6000_legitimate_address): Also check for TFmode for E500
        double.
        (rs6000_emit_move): Use DFmode subregs of TFmode for E500 double.
        (spe_build_register_parallel): Handle TFmode and TCmode.
        (rs6000_spe_function_arg): Handle TFmode and TCmode for E500
        double.
        (function_arg): Handle TFmode and TCmode for E500 double.
        (rs6000_init_libfuncs): Initialize extra libfuncs for soft double
        in general.
        (print_operand): Handle TFmode and TImode for %y.
        (rs6000_generate_compare): Handle TFmode comparisons for E500
        double.
        (spe_func_has_64bit_regs_p): Check for TFmode for E500 double.
        (rs6000_function_value): Handle TFmode and TCmode for E500 double.
        (rs6000_libcall_value): Handle TFmode and TCmode for E500 double.
        * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Check for
        TFmode for E500 double.
        * config/rs6000/rs6000.md (FP): Allow TF for E500 double.
        (floatsidf2): Enable for E500 double.
        (movtf_softfloat): Use rs6000_nonimmediate_operand.
        (extenddftf2): Change to extenddftf2_fprs.
        (extenddftf2): Call gen_spe_extenddftf2 or gen_extenddftf2_fprs
        depending on TARGET_E500_DOUBLE.
        (extendsftf2): Enable for E500 double.
        (trunctfdf2): Enable for E500 double.
        (trunctfsf2): Change to trunctfsf2_fprs.
        (trunctfsf2): Call gen_spe_trunctfsf2 or gen_trunctfsf2_fprs
        depending on TARGET_E500_DOUBLE.
        (floatsitf2): Enable for E500 double.
        (fix_trunctfsi2): Change to fix_trunctfsi2_fprs.
        (fix_trunctfsi2): Call gen_spe_fix_trunctfsi2 or
        gen_fix_trunctfsi2_fprs depending on TARGET_E500_DOUBLE.
        (negtf2): Change to negtf2_internal.
        (negtf2): New expander.
        (abstf2): Enable for E500 double.  Call gen_spe_abstf2_tst,
        gen_spe_abstf2_cmp or gen_abstf2_internal depending on
        TARGET_E500_DOUBLE and flag_unsafe_math_optimizations.
        (movdi_internal32): Use rs6000_nonimmediate_operand.
        (unnamed splitter): Likewise.
        * config/rs6000/spe.md (CMPTFEQ_GPR, TSTTFEQ_GPR, CMPTFGT_GPR,
        TSTTFGT_GPR, CMPTFLT_GPR, TSTTFLT_GPR): New unspecs.
        (SPE64TF, DITI): New mode macros.
        (frob_df_di): Change to frob_<SPE64:mode>_<DITI:mode>; allow more
        modes.
        (frob_tf_ti): New.
        (frob_<mode>_di_2): New.
        (frob_tf_di_8_2): New.
        (frob_di_df): Change to frob_di_<mode>; allow more modes.
        (frob_ti_tf): New.
        (frob_di_df_2): Change to frob_<DITI:mode>_<SPE64:mode>_2; allow
        more modes.
        (frob_ti_<mode>_8_2): New.
        (frob_ti_tf_2): New.
        (mov_si<mode>_e500_subreg0, mov_si<mode>_e500_subreg0_2,
        mov_si<mode>_e500_subreg4, mov_si<mode>_e500_subreg4_2): Allow
        TFmode.
        (mov_sitf_e500_subreg8, mov_sitf_e500_subreg8_2,
        mov_sitf_e500_subreg12, mov_sitf_e500_subreg12_2): New.
        (spe_trunctfdf2_internal1, spe_trunctfsf2, spe_extenddftf2,
        spe_fix_trunctfsi2, spe_fix_trunctfsi2_internal,
        spe_negtf2_internal, spe_abstf2_cmp, spe_abstf2_tst): New.
        (cmptfeq_gpr, tsttfeq_gpr, cmptfgt_gpr, tsttfgt_gpr, cmptflt_gpr,
        tsttflt_gp): New.

2007-01-23  Ian Lance Taylor  <iant@google.com>

        * Makefile.in (OBJS-common): Reformat, alphabetize, but put
        insn-*.o first.
        (OBJS-archive): Reformat, alphabetize.
        (OBJS): Change out_object_file to OBJS-md.

2007-01-23  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Use REG_P, MEM_P, CONST_INT_P, LABEL_P,
        JUMP_P and CALL_P predicates where applicable.
        * config/i386/i386.c: Ditto.
        * config/i386/i386.md: Ditto.
        * config/i386/mmx.md: Ditto.
        * config/i386/predicates.md: Ditto.

2007-01-22  Andreas Schwab  <schwab@suse.de>

        * config/m68k/m68k.h: Fix comment.

2007-01-22  Jan Hubicka  <jh@suse.cz>

        * passes.c (init_optimization_passes): Do not rerun
        pass_early_warn_uninitialized.

2007-01-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/30038
        * tree-ssa-math-opts.c (maybe_record_sincos): New static helper
        function.
        (execute_cse_sincos_1): Likewise.
        (execute_cse_sincos): Likewise.
        (gate_cse_sincos): Likewise.
        (pass_cse_sincos): New pass CSEing sin() and cos() calls using
        the cexpi() canonicalization of sincos().
        * tree-pass.h (pass_cse_sincos): Declare.
        * passes.c (init_optimization_passes): New pass pas_cse_sincos.

2007-01-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

        PR rtl-optimization/29329
        * combine.c (replaced_rhs_insn): Rename to i2mod.
        (replaced_rhs_value): Rename to i2mod_new_rhs.
        (i2mod_old_rhs): New global variable.
        (combine_instructions): Adjust for above change.  Save a copy of
        the old RHS into i2mod_old_rhs when the contents of a REG_EQUAL
        note are substituted in the second instruction.
        (distribute_notes) <REG_DEAD>: Adjust for above change.  Do not
        ditch the note if it pertains to the second eliminated register
        and this register is mentioned in i2mod_old_rhs.

        Revert:
        2006-09-12  Eric Botcazou  <ebotcazou@libertysurf.fr>

        * combine.c (distribute_notes) <REG_DEAD>: Do not consider SETs past
        the insn to which the note was originally attached.

2007-01-21  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (inlining_mode): Comment, move up.
        (cgraph_decide_inlining_incrementally): Do not perform inlining
        itself; fix handling of flattening of self recursive functions.
        (cgraph_find_cycles): Remove.
        (cgraph_flatten_node): Remove.
        (cgraph_decide_inlining): Use incremental inliner to handle flattening.
        (try_inline): New function.
        (cgraph_early_inlining): Update call of
        cgraph_decide_inlining_incrementally.  Apply inlining here.
        (apply_inline): Update call of cgraph_decide_inlining_incrementally.

2007-01-21  Dirk Mueller  <dmueller@suse.de>

        PR bootstrap/30511
        * tree-vrp.c (check_array_bounds): do not warn
        about ADDR_EXPR's of ARRAY_REF's which are immediately
        used in binary expressions.

2007-01-21  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.h (struct _stmt_vec_info): Add new field
        read_write_dep and macros for its access.
        * tree-vectorizer.c (new_stmt_vec_info): Initialize the new field.
        * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Remove
        argument, call vect_check_interleaving for every independent pair of
        data-refs. Mark loads that access the same memory location as a store
        in the loop.
        (vect_check_dependences): Remove.
        (vect_analyze_data_ref_dependences): Remove  vect_check_dependences
        call, fix the call to vect_analyze_data_ref_dependence.
        (vect_analyze_data_ref_access): For statements that access the same
        data-ref, check that they are not stores; for loads, check that there
        is no store that access the same location.

2007-01-20  Roger Sayle  <roger@eyesopen.com>
            Joseph Myers  <joseph@codesourcery.com>

        * doc/invoke.texi (-fdump-rtl-combine): Fix under/overfull hbox.
        (-fdump-rtl-stack): Likewise.
        (-fno-signed-zeros): Use @minus{} for a minus sign.  Correct typo.
        (-mcheck-zero-division, -mcpu): Fix under/overfull hbox.
        (-mpt-fixed): Use @minus{} for minus sign.
        (Using Precompiled Headers): Fix under/overfull hbox.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-flow.h (struct stmt_ann_d): Move references_memory to proper
        place within annotation.

2007-01-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (output_move_double): Change array size of xoperands to 4.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-tailcall.c (adjust_return_value): Do not use RESULT_DECL
        as temporary.

2007-01-19  Ian Lance Taylor  <iant@google.com>

        * expmed.c (expand_divmod) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]: Cast
        constant to unsigned HOST_WIDE_INT before negating.

2007-01-19  Ian Lance Taylor  <iant@google.com>

        * tree-ssa-operands.h (struct vuse_vec_d): Change num_vuse field
        to unsigned.
        (VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Use unsigned comparison.
        (VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_ELEMENT_VAR) [ENABLE_CHECKING]: Likewise.
        (SET_VUSE_ELEMENT_PTR) [ENABLE_CHECKING]: Likewise.
        (realloc_vdef, realloc_vuse): Change second parameter to
        unsigned.
        (ssa_operand_iterator_d): Change vuse_index and mayuse_index
        fields to unsigned.
        * tree-ssa-operands.c (realloc_vop): Change num_elem parameter to
        unsigned. Change x and lim locals to unsigned.
        (realloc_vdef, realloc_vuse): Change num_elem parameter to
        unsigned.
        (finalize_ssa_vuse_ops): Change old_i local to unsigned.
        (copy_virtual_operands): Change i and n locals to unsigned.

2007-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        PR middle-end/29335
        * builtins.c (fold_builtin_1): Handle builtin fdim.

2007-01-20  Jan Hubicka  <jh@suse.cz>

        * tree-ssa.c (init_tree_ssa): Do not call init_alias_heapvars.
        * tree-ssa-structalias.c (compute_points_to_sets): Do call
        init_alias_heapvars.
        (init_alias_heapvars): Initialize only when not already initialized.
        (delete_alias_heapvars): Set heapvar_for_stmt to NULL.

2007-01-19  Roger Sayle  <roger@eyesopen.com>

        * common.opt (fsigned-zeros): New command line option.
        * flags.h (HONOR_SIGNED_ZEROS): Control via flag_signed_zeros instead
        of flag_unsafe_math_optimizations.
        * opts.c (set_fast_math_flags): The -ffast-math command line option
        implies -fno-signed-zeros.
        (fast_math_flags_set_p): Likewise.

        * doc/invoke.texi: Document new -fno-signed-zeros option, and update
        the documentation of -ffast-math appropriately.  Wrap long lines.

2007-01-19  Steve Ellcey  <sje@cup.hp.com>

        * system.h (ASM_MAKE_LABEL_LINKONCE): Poison.
        * varasm.c (globalize_decl): Remove ASM_MAKE_LABEL_LINKONCE ifdef.

2007-01-19  Tomas Bily  <tbily@suse.cz>

        * cgraphunit.c (cgraph_finalize_function): Updating of pid
        * tree-profile.c:
        (tree_init_ic_make_global_vars): New function
        (tree_init_edge_profiler): call of tree_init_ic_make_global_vars
        (tree_gen_ic_profiler): New function
        (tree_gen_ic_func_profiler): New function
        (tree_profiling): Added calling of tree_gen_ic_func_profiler
        (tree_profile_hooks): Added hook for indirec/virtual calls
        * value-prof.c (tree_find_values_to_profile): New case for
        indirect calls
        (tree_values_to_profile): Call for determining indirect/virtual
        counters
        (tree_indirect_call_to_profile): New function
        (tree_ic_transform): New function
        (tree_ic): New function
        (find_func_by_pid): New function
        (init_pid_map): New function
        (tree_value_profile_transformations): Added check for
        indirect/virtual call transformation
        * value-prof.h (enum hist_type): New counter type for
        indirect/virtual calls
        (profile_hooks): Added new hook for profiling indirect/virtual
        calls
        * profile.c (instrument_values): New case for indirect/virtual
        call added
        * gcov-io.h (GCOV_LAST_VALUE_COUNTER): Changed to 6
        (GCOV_COUNTER_V_INDIR): New counter type
        (GCOV_COUNTER_NAMES): New name of counter "indirect" added
        (GCOV_MERGE_FUNCTIONS): New merge function for indirect/virtual
        call added
        * cgraph.c: Definition of cgraph_max_pid
        (cgraph_create_node): Default init of pid attribute
        * cgraph.h: Declaration of cgraph_max_pid
        (struct cgraph_node): Added pid attribute
        * libgcov.c (__gcov_indirect_call_profiler): New function
        (__gcov_one_value_profiler_body): New function
        (__gcov_one_value_profiler): Body was moved to
        __gcov_one_value_profiler_body and calls it

2007-01-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/gty.texi (Options): Document the mark_hook option to GTY.
        * gengtype.c (write_types_data, write_func_for_structure,
        write_types, ggc_wtd, pch_wtd): Add skip_hooks to
        write_types_data, ggc_wtd, pch_wtd for processing mark_hook.
        (walk_type, write_func_for_structure): Generate the mark_hook if
        needed.

2007-01-19  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of
        'early' argument take inlining mode argument specifying whether to
        inline for size/speeed or all functions; add support for flattening;
        improve dumpting.
        (cgraph_early_inlining): Update call of decide_inlining_incrementally.

2007-01-19  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/17947
        * toplev.c (warn_deprecated_use): Use %qD instead of %qs to print
        the name of the declared identifier.

2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * config/i386.h (CONDITIONAL_REGISTER_USAGE): Store
        result of PIC_OFFSET_TABLE_REGNUM in temporary variable to avoid
        duplicate evaluation.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (acos<mode>2): Rename from acossf2 and acosdf2.
        Macroize expander using X87MODEF12 mode macro.  Extend operand 1
        to XFMode, use acosxf2 and truncate result to requested mode.
        Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (asin<mode>2): Similarly, with asin expanders.
        (*fscalexf4_i387): Rename from *fscalexf4.
        (expNcorexf3): New expander.
        (expxf2, exp10xf2, exp2xf2): Use expNcorexf3 expander.
        (exp<mode>2): Rename from expsf2 and expdf2. Macroize expander using
        X87MODEF12 mode macro.  Extend operand 1 to XFMode, use expxf2 and
        truncate result to requested mode. Use SSE_FLOAT_MODE_P to disable
        patterns for SSE math.
        (exp10<mode>2): Similarly, with exp10 expanders.
        (exp2<mode>2): Similarly, with exp2 expanders.
        (expm1<mode>2): Similarly, with expm1 expanders.
        (ldexp<mode>3): Similarly, with ldexp expanders.
        (log<mode>2, log10<mode>2, log2<mode>2, log1p<mode>2, logb<mode>2):
        Use gen_truncxf<mode>2_i387_noop to truncate result.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Define to 32
        for ColdFire targets.

2007-01-19  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (M68K_STATIC_CHAIN_REG_NAME): New macro.
        (INITIALIZE_TRAMPOLINE): Use STATIC_CHAIN_REGNUM.
        (__transfer_from_trampoline): Use M68K_STATIC_CHAIN_REG_NAME.
        * config/m68k/m68kelf.h (STATIC_CHAIN_REGNUM): Override.
        (M68K_STATIC_CHAIN_REG_NAME): Likewise.
        * config/m68k/netbsd-elf.h (M68K_STATIC_CHAIN_REG_NAME): Likewise.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (adddi_dilshr32): Rename to...
        (*adddi_dilshr32): ...this.  Fix formatting.  Remove commented-out
        non-canonical pattern.  Restrict to !TARGET_COLDFIRE.
        (*adddi_dilshr32_cf): New pattern.
        (adddi3, subdi3): Remove first alternatives.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (notice_update_cc): If an SFmode move is
        implemented using move.l, do not use its cc result for floating-point
        comparisons.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Stop the 'T' constraint
        from accepting 's' constraints if flag_pic.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (bordered, bunordered, buneq, bunge, bungt)
        (bunle, bunlt, bltgt, bordered_rev, bunordered_rev, buneq_rev)
        (bunge_rev, bungt_rev, bunle_rev, bunlt_rev, bltgt_rev): Change
        condition from TARGET_68881 to TARGET_HARD_FLOAT.

2007-01-19  Sandra Loosemore  <sandra@codesourcery.com>

        * longlong.h (count_leading_zeros, COUNT_LEADING_ZEROS_0): Add
        ColdFire alternatives.
        * config/m68k/m68k.h (CLZ_DEFINED_VALUE_AT_ZERO): New macro.
        * config/m68k/m68k.md (clzsi2):  Define for ColdFire
        architectures that support ff1 instruction.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (CONST_OK_FOR_LETTER_P): Add an 'R' case.
        * config/m68k/m68k.md (*movsi_cfv4): Fold into...
        (*movsi_cf): ...here.  Remove unnecessary 'R' from 'Rg'.
        Add commentary.

2007-01-19  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (valid_mov3q_const): Take a HOST_WIDE_INT
        and return a bool.
        (output_move_const_into_data_reg, output_move_simode_const): Delete.
        * config/m68k/m68k.c (const_method, const_int_cost): Take a
        HOST_WIDE_INT instead of an rtx.
        (m68k_rtx_costs): Update call accordingly.
        (output_move_const_into_data_reg): Likewise.  Fix formatting.
        (valid_mov3q_const): Take a HOST_WIDE_INT instead of an rtx.
        Return a bool.
        (output_move_simode_const): Update calls after above changes.
        Rework to use automatic variables and predicates like MEM_P.
        * config/m68k/m68k.md (pushexthisi_const): Update call to
        valid_mov3q_const.

2007-01-19  Dirk Mueller  <dmueller@suse.de>

        * tree-ssa-alias.c (perform_var_substitution): Fix typo
        in dump_flags test.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * builtins.c (expand_builtin_cexpi): Fall back to expanding
        via cexp in case sincos is not available.

2007-01-19  Richard Guenther  <rguenther@suse.de>

        * doc/tm.texi (TARGET_HAS_SINCOS): Document new target macro.
        * defaults.h (TARGET_HAS_SINCOS): Default to off.
        * config/linux.h (TARGET_HAS_SINCOS): Set to on if we have glibc.
        * config/alpha/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/sparc/linux64.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux.h (TARGET_HAS_SINCOS): Likewise.
        * config/rs6000/linux64.h (TARGET_HAS_SINCOS): Likewise.

2007-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*fpatanxf3_i387, fpatan_extend<mode>xf3_i387):
        New insn patterns.
        (atan2sf3_1, atan2df3_1, atan2xf3_1): Remove insn patterns.
        (atan2xf3): Directly generate RTL pattern.
        (atan2<mode>3): Rename from atan2sf3 and atan2df3 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (atan<mode>2): Rename from atansf2 and atandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fpatan_extend<mode>xf3_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.

2007-01-19  Alexandre Oliva  <aoliva@redhat.com>

        * libgcc-std.ver: Fix typo in %inherit for GCC_4.3.0.

2007-01-18  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Optimize away a
        VIEW_CONVERT_EXPR to the same type as it's operand.

2007-01-18  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Only build _SOFT_FLOAT if
        configured for long double 128.

2007-01-18  Mike Stump  <mrs@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Fix build
        error.

2007-01-18  Michael Meissner  <michael.meissner@amd.com>

        * i386.c (ix86_compute_frame_layout): Make fprintf's in #if 0 code
        type correct.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-operands.c (vop_free_bucket_size): Never return value
        greater than NUM_VOP_FREE_BUCKETS.

2007-01-18  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c: Update comments.
        (ptabitmap_obstack): Removed.
        (pta_obstack): New.
        (oldpta_obstack): Ditto.
        (stats): Add a few members.
        (struct variable_info): Remove node, complex, address_taken, and
        indirect_target members. Add oldsolution member.
        (new_var_info): Do not initialize removed members.
        (constraint_expr_type): Remove INCLUDES.
        (constraint_graph): Add size, implicit_preds, rep,
        indirect_cycles, eq_rep, label, direct_nodes, and complex members.
        (FIRST_REF_NODE): New macro.
        (LAST_REF_NODE): Ditto.
        (FIRST_ADDR_NODE): Ditto.
        (find): New function.
        (unite): Ditto.
        (dump_constraint): Do not handle INCLUDES.
        (insert_into_complex): Do not insert duplicate constraints.
        (condense_varmap_nodes): Renamed and rewritten into ...
        (merge_node_constraints): This. Also fix bug in handling of
        offseted copy constraints.
        (clear_edges_for_node): No longer need to deal with preds at all,
        or removing associated preds/succs.
        (merge_graph_nodes): Deal with indirect_cycles.
        Don't deal with predecessors.
        (add_implicit_graph_edge): New function.
        (add_pred_graph_edge): Ditto.
        (add_graph_edge): Don't deal with predecessors.
        (build_constraint_graph): Removed.
        (build_pred_graph): New function.
        (build_succ_graph): Ditto.
        (struct scc_info): Removed in_component. Added roots, dfs, and
        node_mapping. Remove visited_index, unification_queue.
        (scc_visit): Deal with union-find we do now.
        Deal with cycles with REF nodes.
        (collapse_nodes): Renamed and rewritten to ...
        (unify_nodes): This.
        (process_unification_queue): Removed.
        (topo_visit): Cleanup
        (do_da_constraint): Use find.
        (do_sd_constraint): Ditto.
        (do_ds_constraint): Ditto.
        (do_complex_constraint): Ditto.
        (init_scc_info): Update for removed and added members.
        (find_and_collapse_graph_cycles): Renamed and rewritten into ...
        (find_indirect_cycles): This.
        (equivalence_class): New variable.
        (label_visit): New function.
        (perform_variable_substitution): Rewritten.
        (free_var_substitution_info): New function.
        (find_equivalent_node): Ditto.
        (move_complex_constraints): Ditto.
        (eliminate_indirect_cycles): Ditto.
        (solve_graph): Only propagate changed bits.
        Use indirect cycle elimination.
        Use find.
        (tree_id_t): Rename to tree_vi_t, delete id member, add vi member.
        (tree_id_eq): Renamed to ...
        (tree_vi_eq): This. Update for member change
        (insert_id_for_tree): Renamed and rewritten to ...
        (insert_vi_for_tree): This.
        (lookup_id_for_tree): Renamed and rewritten to ...
        (lookup_vi_for_tree): This.
        (get_id_for_tree): Renamed and rewritten to ...
        (get_vi_for_tree): Ditto.
        (get_constraint_exp_from_ssa_var): Update to use get_vi_for_tree.
        (process_constraint): Don't handle INCLUDES.
        Remove special ADDRESSOF case.
        (find_func_aliases): Rewrite to use vi functions instead of id
        ones.
        (create_function_info_for): Ditto.
        (create_variable_info_for): Ditto.
        (intra_create_variable_infos): Ditto.
        (merge_smts_into): Ditto.
        (find_what_p_points_to): Ditto.
        (init_base_vars): Ditto.
        (init_alias_vars): Ditto.
        (remove_preds_and_fake_succs): New function.
        (dump_sa_points_to_info): Dump new stats.
        (dump_solution_for_var): Use find.
        (set_used_smts): Fix formatting.
        (compute_points_to_sets): Updated for new functions.
        (ipa_pta_execute): Ditto.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/tm.texi (TARGET_FUNCTION_VALUE): Expand documentation of
        parallels.
        * calls.c (expand_call): If the return value is a PARALLEL,
        extract its first member.
        * config/m68k/linux.h (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        use FUNCTION_EXTRA_EPILOGUE.
        (m68k_function_value): Return a PARALLEL if the return value
        is of a pointer type.
        * config/m68k/netbsd-elf.h (current_function_returns_pointer)
        (FUNCTION_EXTRA_EPILOGUE): Remove.
        * config/m68k/m68k.md (D0_REG): New constant.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k.c (m68k_output_function_epilogue): Don't
        output a NOP for empty epilogues.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.c (m68k_use_return_insn): Update comments
        before function.  Extend register save check to include all
        registers, not just integer ones.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>

        * config/m68k/m68k-protos.h (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.h (USE_RETURN_INSN): Delete.
        * config/m68k/m68k.c (use_return_insn): Rename to...
        (m68k_use_return_insn): ...this.
        * config/m68k/m68k.md (return): Use m68k_use_return_insn instead
        of USE_RETURN_INSN.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/fpgnulib.c (__truncdfsf2): Implement round to
        nearest even, fix denormal rounding overflow.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movsf_cf_hard): Use fsmove instead of
        f%$smove and f%$move.
        (movdf_cf_hard): Use fdmove for cases 0 and 3 and fmove for case 1.
        (extendsfdf2_cf): Use fdmove instead of f%&move.
        (truncdfsf2_cf): Use fsmove instead of f%$smove.
        (add<mode>3_cf, sub<mode>3_cf): Use <FP:prec> instead of <FP:round>.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (movdf_cf_hard): Use output_move_double for
        GPR<-GPR moves.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * real.h (real_format): Add a canonical_nan_lsbs_set field.
        (coldfire_single_format): Declare.
        (coldfire_double_format): Likewise.
        * real.c (encode_ieee_single): Use canonical_nan_lsbs_set instead
        of qnan_msb_set to determine the lower bits of a canonical
        NaN significand.
        (encode_ieee_double): Likewise.
        (encode_ieee_quad): Likewise.
        (ieee_single_format): Initialize canonical_nan_lsbs_set.
        (mips_single_format): Likewise.
        (ieee_double_format): Likewise.
        (mips_double_format): Likewise.
        (ieee_extended_motorola_format): Likewise.
        (ieee_extended_intel_96_format): Likewise.
        (ieee_extended_intel_128_format): Likewise.
        (ieee_extended_intel_96_round_53_format): Likewise.
        (ibm_extended_format): Likewise.
        (mips_extended_format): Likewise.
        (ieee_quad_format): Likewise.
        (mips_quad_format): Likewise.
        (vax_f_format): Likewise.
        (vax_d_format): Likewise.
        (vax_g_format): Likewise.
        (i370_single_format): Likewise.
        (i370_double_format): Likewise.
        (decimal_single_format): Likewise.
        (decimal_double_format): Likewise.
        (decimal_quad_format): Likewise.
        (c4x_single_format): Likewise.
        (c4x_extended_format): Likewise.
        (real_internal_format): Likewise.
        (coldfire_single_format): New real_format.
        (coldfire_double_format): Likewise.
        * config/pdp11/pdp11.c (pdp11_f_format): Initialize
        canonical_nan_lsbs_set.
        (pdp11_d_format): Likewise.
        * config/m68k/m68k.c (override_options): Override REAL_FORMAT_MODE
        if TARGET_COLDFIRE_CPU.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k-protos.h (m68k_output_pic_call): Delete.
        (output_call, m68k_legitimize_call_address): Declare.
        * config/m68k/m68k.h (EXTRA_CONSTRAINT): Remove unnecessary
        parenthesees.  Add support for a 'W' constraint.
        (LEGITIMATE_PIC_OPERAND_P): Remove SYMBOL_REF_FLAG handling.
        (PRINT_OPERAND_PUNCT_VALID_P): Remove comment about 'o'.
        (m68k_symbolic_call, m68k_symbolic_jump): Declare.
        * config/m68k/m68k.c (m68k_symbolic_call, m68k_symbolic_jump): New
        variables.
        (override_options): Initialize them.  Do not set flag_no_function_cse
        for TARGET_ID_SHARED_LIBRARY.
        (m68k_output_pic_call): Delete.
        (m68k_legitimize_call_address): New function.
        (print_operand): Remove the %o prefix.  Handle the %p prefix.
        (output_call): New function.
        (m68k_output_mi_thunk): Use m68k_symbolic_jump.  Always load the
        target address from the GOT if symbolic jumps are not allowed.
        * config/m68k/m68k.md (call, general_operand): Do not set
        SYMBOL_REF_FLAG.  Use m68k_legitimize_call_address instead.
        Merge separate flag_pic and !flag_pic define_insns into...
        (*call, *call_value): ...these new patterns.  Match the address
        rather than the containing MEM and require it to be a call_operand.
        Use output_call to generate the asm template.
        * config/m68k/predicates.md (const_call_operand): New predicate.
        (call_operand): Likewise.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (REGISTER_MOVE_COST): Simplify definition.
        (STACK_GROWS_DOWNWARD): Define to 1.
        (FUNCTION_VALUE, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Equivocate
        comments, emphasizing that these values are only defaults.
        * config/m68k/linux.h (LINK_SPEC): Fix formatting in #undef.
        * config/m68k/m68k.c (const_method): Remove trailing whitespace.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.md (cmpsi): Remove outdated flag_pic handling.

2007-01-18  Kazu Hirata  <kazu@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (DATA_REGNO_P, ADDRESS_REGNO_P, INT_REGNO_P)
        (FP_REGNO_P): New macros.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_DATA_P)
        (REGNO_OK_FOR_FP_P, REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Use them.
        (EH_RETURN_STACKADJ_RTX): Use A0_REG.
        * config/m68k/m68k.c (m68k_regno_mode_ok): Use the new REGNO macros.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-rtems*): Add t-floatlib
        to $tmake_file.
        * config/m68k/t-floatlib: New file, extracting common code from...
        * config/m68k/t-m68kbare, config/m68k/t-m68kelf,
        * config/m68k/t-uclinux: Here.
        * config/m68k/fpgnulib.c: Do not compile extendeed precision
        routines on ColdFire targets.

2007-01-18  Nathan Sidwell  <nathan@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*)
        (m68k-*-uclinuxoldabi, m68k-*-uclinux*, m68k-*-linux*)
        (m68k-*-rtems*): Use tm_file rather than m68k/m68k.h and
        explicitly set MOTOROLA to 1.
        * config/m68k/m68k.h (MOTOROLA): Simplify definition accordingly.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (PCC_STATIC_STRUCT_RETURN): Delete.
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Add MOTOROLA cases.
        * config/m68k/coff.h (REGISTER_PREFIX_MD): Delete.
        * config/m68k/m68020-elf.h (LIB_SPEC): Delete.
        * config/m68k/m68k-none.h (CC1_SPEC, CPP_SUBTARGET_SPEC): Delete.
        * config/m68k/m68kelf.h (IMMEDIATE_PREFIX, REGISTER_PREFIX_MD)
        (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Delete.
        (NO_DOLLAR_IN_LABEL, PCC_STATIC_STRUCT_RETURN): Don't undefine.
        (BSS_ASM_OP, ASM_OUTPUT_SKIP, ASM_OUTPUT_ASCII): Delete.
        * config/m68k/m68kemb.h (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/linux.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE)
        (WCHAR_TYPE_SIZE, TARGET_OBJFMT_CPP_BUILTINS): Delete.
        (TARGET_OS_CPP_BUILTINS): Don't define mc68000 and mc68020 here.
        (DBX_REGISTER_NUMBER): Delete.
        * config/m68k/netbsd-elf.h (IMMEDIATE_PREFIX): Delete.
        (PCC_STATIC_STRUCT_RETURN): Don't undefine.
        * config/m68k/openbsd.h (PCC_STATIC_STRUCT_RETURN): Define.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Add flat.h to $tm_file.
        * config/flat.h: New file.
        * crtstuff.c (USE_PT_GNU_EH_FRAME): Don't define if
        OBJECT_FORMAT_FLAT.
        * config/m68k/m68k.h (ASM_PREFERRED_EH_DATA_FORMAT): Do not use
        indirect references for -msep-data or -mid-shared-library.
        Do not use PC-relative code addresses either.
        * config/m68k/m68k.c (override_options): Restrict -fPIC error
        to -mpcrel.
        * config/m68k/uclinux.h (STARTFILE_SPEC): Define.  Use Scrt1.o
        for shared libraries and crt1.o for executables.  Use crti.o and
        crtbegin.o.
        (ENDFILE_SPEC): Use crtend.o and crtn.o.
        (LIB_SPEC): Suppress -Rlibc.gdb if -static-libc is given.
        Do not add -elf2flt or -shared-lib-id options here.
        (LINK_SPEC): Define.  Pass -elf2flt if no -elf2flt option is given.
        Pass -shared-lib-id if -mid-shared-library, taking the library
        identifier from -mshared-library-id if given, otherwise
        defaulting to 0.
        (EH_FRAME_IN_DATA_SECTION): Do not undefine.
        (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Likewise.
        (TARGET_OS_CPP_BUILTINS): Define __GXX_MERGED_TYPEINFO_NAMES=0
        and __GXX_TYPEINFO_EQUALITY_INLINE=0 if -mid-shared-library.
        (DRIVER_SELF_SPECS): Map unadorned PIC options to -msep-data.
        * config/m68k/t-uclinux (EXTRA_MULTILIB_PARTS): Add crtbegin.o
        and crtend.o.
        * config/m68k/lb1sf68.asm (PICCALL): Use an lea and pc-relative
        jump sequence for ISA A and ISA A+.
        (PICJUMP): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68k-*-uclinux*): Base the port on the common
        and m68k GNU/Linux files rather than on the generic ELF ones.
        * config/m68k/uclinux.h (TARGET_VERSION): Override.
        (TARGET_OS_CPP_BUILTINS): Use LINUX_TARGET_OS_CPP_BUILTINS.

2007-01-18  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (LONG_DOUBLE_TYPE_SIZE): Make 64-bit on ColdFire.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.
        * config/m68k/netbsd-elf.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Undefine
        before redefining.
        * config/m68k/uclinux-oldabi.h (LONG_DOUBLE_TYPE_SIZE): Redefine to
        80 unconditionally.
        (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise.

2007-01-18  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Document m68k-uclinuxoldabi.
        * config.gcc (m68k-*-uclinuxoldabi): New configuration.
        * config/m68k/uclinux-oldabi.h: New file, copied from
        config/m68k/uclinux.h.

2007-01-18  Kaz Kojima  <kkojima@rr.iij4u.or.jp>

        * config/m32r/m32r-protos.h (m32r_expand_epilogue): Declare it.
        * config/m32r/m32r.c (m32r_setup_incoming_varargs): Use gen_frame_mem.
        (m32r_compute_frame_size): Use unsigned for regno.
        (m32r_reload_lr): Use gen_frame_mem.
        (pop): New.
        (m32r_output_function_epilogue): Don't output the function epilogue
        textually here.
        (m32r_expand_epilogue): New.
        (direct_return): Return false if the function has the interrupt
        attribute.
        (m32r_hard_regno_rename_ok): Remove code for the textual epilogue.
        * config/m32r/m32r.md (epilogue): New expander.
        (return_lr, return_rte): New insns.
        (return): Make it expander.
        (return_normal): New expander.

2007-01-18  Josh Conner  <jconner@apple.com>

        PR target/30485
        * config/rs6000/rs6000.c (rs6000_emit_vector_compare): Add
        support for UNLE, UNLT, UNGE, and UNGT.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (finalize_jump_threads): Do not call cleanup_cfg by hand.
        * tree-tailcall (add_virtual_phis): Likewise.
        (optimize_tail_call): Return TODOs.
        (execute_tail_calls): Return TODOs.
        * tree-ssa-ccp (execute_fold_all_builtins): Do cleanup_cfg via TODO.
        * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Return if something
        changed.
        * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_value):
        Cleanup cfg using TODO.
        * tree-flow.h (cleanup_tree_cfg_loop): Update prototype.
        * passes.c (execute_function_todo): When cleanup did something, remove
        unused locals.
        * tree-cfg.c (pass_build_cfg): Add cleanup_cfg TODO.
        (make_edges): Don't cleanup_cfg.

2007-01-18  Uros Bizjak  <ubizjak@gmail.com>

        * reg-stack.c (subst_stack_regs_pat) [UNSPEC_SINCOS_COS,
        UNSPEC_XTRACT_FRACT]: Use generic code for instructions that
        operate on the top of stack.
        [UNSPEC_SINCOS_SIN, UNSPEC_XTRACT_EXP, UNSPEC_TAN]: Rewrite
        register handling of instructions that output to the second
        stack slot.
        [UNSPEC_TAN_ONE, UNSPEC_TAN_TAN]: Remove.
        (move_for_stack_reg): Special-case check for dead destination
        stack slot for constant load of 1.0 inside UNSPEC_TAN.

        * config/i386/i386.md (UNSPEC_TAN): New constant.
        (UNSPEC_TAN_ONE, UNSPEC_TAN_TAN): Remove.
        (fptanxf4_i387, fptan_extend<mode>xf4_i387): New patterns
        to correctly model move of constant 1.0 to top stack slot.
        (*tandf3_1, *tansf3_1, *tanxf3_1): Remove insn patterns.
        (unnamed peephole2 pattern): Remove corresponding peephole2
        pattern that optimizes tan insn and loading of constant 1.0.
        (tanxf2): Use fptanxf4_i387.
        (tan<mode>2): Rename from tansf2 and tandf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Use fptan_extend<mode>xf4_i387
        and truncate result to requested mode.  Use SSE_FLOAT_MODE_P to
        disable patterns for SSE math.
        (sincos<mode>3): Use truncxf<mode>2_i387_noop for truncation.
        (fyl2x_extend<mode>xf3_i387): Use X87MODEF12 for operand 1.

2007-01-18  Dirk Mueller  <dmueller@suse.de>
            Richard Guenther <rguenther@suse.de>

        PR diagnostic/8268
        * doc/invoke.texi (Warray-bounds): Document -Warray-bounds.
        * common.opt (Warray-bounds): Add new warning option.
        * c-opts.c (c_common_handle_option): Define -Warray-bounds
        if -Wall is given.
        * Makefile.in: make tree-vrp.o depend on toplev.h
        * tree-vrp.c (vrp_finalize): Call check_array_refs if -Warray-bounds
        is enabled.
        (check_array_refs, check_array_bounds, check_array_ref): New.

2007-01-18  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-ccp.c (ccp_finalize): Return if something changed.
        (execute_ssa_ccp): Return flags conditionally.
        * tree-ssa-propagate.c (substitue_and_fold): Return if something was
        changed.
        * tree-ssa-propagate.h (substitute_and_fold): Update prototype.

2007-01-18  Steven Bosscher  <steven@gcc.gnu.org>

        * cfgcleanup.c (cleanup_cfg): Detect cfglayout mode and set
        the CLEANUP_CFGLAYOUT flag when in cfglayout mode.

        * Makefile.c (GTFILES): Add cfglayout.h.
        * gengtype.c (open_base_files): Likewise.
        * cfglayout.c (cfg_layout_function_footer,
        cfg_layout_function_header) Reindent to make gengtype happy.
        * cfglayout.h (cfg_layout_function_footer,
        cfg_layout_function_header): Add GTY(()) marker.

        * ifcvt.c (noce_try_sign_mask): Make sure INSN_B is non-null.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (write_automata): Include xstrerror output in the
        error message if writing the DFA description file fails.

2007-01-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/mips/mips-protos.h (mips_output_external): Make it
        return void.
        * config/mips/iris.h (TARGET_ASM_EXTERNAL_LIBCALL): Removed.
        * config/mips/mips.c (irix_output_external_libcall): Likewise.
        (extern_list): Likewise.
        (extern_head): Likewise.
        (TARGET_ASM_FILE_END): Likewise.
        (mips_file_end): Likewise.
        (mips_output_external): Rewritten.

2007-01-18  Ben Elliston  <bje@au.ibm.com>

        * genpreds.c (write_insn_preds_c): Only write out the function
        body for regclass_for_constraint if we have register constraints.

2007-01-17  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Use sourceware.org.
        * doc/install.texi (Testing): Use sourceware.org.
        (Binaries): Likewise.
        (Specific): Likewise.
        * doc/contrib.texi (Contributors): Use sourceware.org.

2007-01-17  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr.h (AVR_HAVE_LPMX): New macro.
        (AVR_ENHANCED): Rename to ...
        (AVR_HAVE_MUL): ... new.
        (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (TARGET_CPU_CPP_BUILTINS): Use 'avr_have_mul_p' instead of
        'avr_enhanced_p' for "__AVR_ENHANCED__". Define "__AVR_HAVE_MUL__".
        * config/avr/avr.c (avr_enhanced_p): Rename to ...
        (avr_have_mul_p): ... new.
        (base_arch_s): Rename 'enhanced' to 'have_mul'.
        (avr_override_options): Use 'avr_have_mul_p' and 'have_mul' instead of
        'avr_enhanced_p' and 'enhanced'.
        (ashlhi3_out, ashrhi3_out, lshrhi3_out, avr_rtx_costs): Use
        AVR_HAVE_MUL instead of AVR_ENHANCED.
        * avr.md (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        (mulqi3, *mulqi3_enh, *mulqi3_call, mulqihi3, umulqihi3, mulhi3,
        *mulhi3_enh, *mulhi3_call, mulsi3, *mulsi3_call): Use AVR_HAVE_MUL
        instead of AVR_ENHANCED.
        (*tablejump_enh): Use AVR_HAVE_LPMX instead of AVR_ENHANCED.
        * libgcc.S: Use __AVR_HAVE_MUL__ instead of __AVR_ENHANCED__.
        (__tablejump__): Use __AVR_HAVE_LPMX__ instead of __AVR_ENHANCED__.

2007-01-17  Ian Lance Taylor  <iant@google.com>

        * vec.h (VEC_reserve_exact): Define.
        (vec_gc_p_reserve_exact): Declare.
        (vec_gc_o_reserve_exact): Declare.
        (vec_heap_p_reserve_exact): Declare.
        (vec_heap_o_reserve_exact): Declare.
        (VEC_OP (T,A,reserve_exact)): New static inline function, three
        versions.
        (VEC_OP (T,A,reserve)) [all versions]: Remove handling of
        negative parameter.
        (VEC_OP (T,A,alloc)) [all versions]: Call ...reserve_exact.
        (VEC_OP (T,A,copy)) [all versions]: Likewise.
        (VEC_OP (T,a,safe_grow)) [all versions]: Likewise.
        * vec.c (calculate_allocation): Add exact parameter.  Change all
        callers.
        (vec_gc_o_reserve_1): New static function, from vec_gc_o_reserve.
        (vec_gc_p_reserve, vec_gc_o_reserve): Call vec_gc_o_reserve_1.
        (vec_gc_p_reserve_exact, vec_gc_o_reserve_exact): New functions.
        (vec_heap_o_reserve_1): New static function, from vec_heap_o_reserve.
        (vec_heap_p_reserve, vec_heap_o_reserve): Call vec_heap_o_reserve_1.
        (vec_heap_p_reserve_exact): New function.
        (vec_heap_o_reserve_exact): New function.

2007-01-17  Jan Hubicka  <jh@suse.cz>

        * ipa-type-escape.c (look_for_casts): Revamp using handled_component_p.

2007-01-17  Eric Christopher  <echristo@apple.com>

        * config.gcc: Support core2 processor.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Instead of ggc_freeing
        the names, just unlink the chain so we don't crash on dangling pointers
        to dead SSA names.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * cgraph.h (cgraph_decide_inlining_incrementally): Kill.
        * tree-pass.h: Reorder to make IPA passes appear toegher.
        (pass_early_inline, pass_inline_parameters, pass_apply_inline): Declare.
        * cgraphunit.c (cgraph_finalize_function): Do not compute inling
        parameters, do not call early inliner.
        * ipa-inline.c: Update comments.  Include tree-flow.h
        (cgraph_decide_inlining): Do not compute inlining parameters.
        (cgraph_decide_inlining_incrementally): Return TODOs; assume to
        be called with function context set up.
        (pass_ipa_inline): Remove unreachable functions before pass.
        (cgraph_early_inlining): Simplify assuming to be called from the
        PM as local pass.
        (pass_early_inline): New pass.
        (cgraph_gate_ipa_early_inlining): New gate.
        (pass_ipa_early_inline): Turn into simple wrapper.
        (compute_inline_parameters): New function.
        (gate_inline_passes): New gate.
        (pass_inline_parameters): New pass.
        (apply_inline): Move here from tree-optimize.c
        (pass_apply_inline): New pass.
        * ipa.c (cgraph_remove_unreachable_nodes): Verify cgraph after
        transforming.
        * tree-inline.c (optimize_inline_calls): Return TODOs rather than
        doing them by hand.
        (tree_function_versioning): Do not allocate dummy struct function.
        * tree-inline.h (optimize_inline_calls): Update prototype.
        * tree-optimize.c (execute_fixup_cfg): Export.
        (pass_fixup_cfg): Remove
        (tree_rest_of_compilation): Do not apply inlines.
        * tree-flow.h (execute_fixup_cfg): Declare.
        * Makefile.in (gt-passes.c): New.
        * passes.c: Include gt-passes.h
        (init_optimization_passes): New passes.
        (nnodes, order): New static vars.
        (do_per_function_toporder): New function.
        (execute_one_pass): Dump current pass here.
        (execute_ipa_pass_list): Don't dump current pass here.

2007-01-16  Janis Johnson  <janis187@us.ibm.com>

        * config/dfp-bit.c (dfp_compare_op): Return separate value for NaN.
        (DFP_NE, DFP_LE, DFP_GE): Return false for NaN.

2007-01-16  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/darwin-ldouble.c: Build file for SOFT_FLOAT.
        (strong_alias): Define.
        (__gcc_qmul): Provide non-FMA for soft-float.
        (__gcc_qdiv): Same.
        (__gcc_qneg): New.
        (__gcc_qeq): New.
        (__gcc_qle): New.
        (__gcc_qge): New.
        (__gcc_qunord): New.
        (__gcc_stoq): New.
        (__gcc_dtoq): New.
        (__gcc_qtos): New.
        (__gcc_qtod): New.
        (__gcc_qtoi): New.
        (__gcc_qtou): New.
        (__gcc_itoq): New.
        (__gcc_utoq): New.
        (fmsub): New.
        * config/rs6000/rs6000.c (rs6000_init_libfuncs): Initialize
        soft-float functions.
        * config/rs6000/libgcc-ppc-glibc.ver: Version soft-float symbols.
        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Do not warn
        about long double soft float.

2007-01-16  Dorit Nuzman  <dorit@il.ibm.com>
            Tehila Meyzels  <tehila@il.ibm.com>

        * tree-vectorizer.h (is_pattern_stmt_p): New.
        * tree-vect-analyze.c (vect_determine_vectorization_factor): Fix
        formatting (tabs instead of spaces). Cleanup and clarify setting
        of STMT_VINFO_VECTYPE. Call is_pattern_stmt_p.
        * tree-vect-transform.c (vect_get_vec_def_for_operand): Fix typo.
        (vectorizable_type_demotion): Check that types are integral.
        (vectorizable_type_promotion): Likewise.
        (vectorizable_store): Fix typo.  Eliminate new-line at end of
        comments.

2007-01-16  Jan Hubicka  <jh@suse.cz>

        * tree-ssanames.c (release_dead_ssa_names): Remove invalidated
        cgraph edges too.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * ifcvt.c: Include vec.h, vecprim.h.
        (check_cond_move_block): New argument regs.
        Reorganize. Add registers used to regs.
        (cond_move_process_if_block): Use regs set above as
        loop bounds.

2007-01-15  Eric Christopher  <echristo@apple.com>

        * config/darwin.h: Update copyright.
        (TARGET_OPTION_TRANSLATE_TABLE): Add umbrella.
        (LINK_COMMAND_SPEC): Add -u.
        (LINK_SPEC): Fix umbrella for above.

2007-01-15  Joseph S. Myers  <joseph@codesourcery.com>

        * config/soft-fp/op-common.h, config/soft-fp/op-4.h: Update from
        glibc CVS.

2007-01-15  Tom Tromey  <tromey@redhat.com>

        * doc/sourcebuild.texi (libgcj Tests): Don't mention jacks.
        * doc/install.texi (Testing): Don't mention jacks.
        (Configuration): Document --enable-java-maintainer-mode.  Move
        --with-java-home to libgcj-specific section.  Document
        --with-ecj-jar.
        (Prerequisites): Mention --enable-java-maintainer-mode, ecj1.

2007-01-15  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (DCE_TODOs): New.
        (propagate_necessity): Return if something changed.
        (eliminate_unnecessary_stmts): Likewise.
        (perform_tree_ssa_dce): Return TODO flags when needed.
        (pass_dce, pass_dce_loop, pass_cd_dce): Remove TODO flags.

2007-01-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fyl2xxf3_i387): Rename from fyl2x_xf3.
        (fyl2x_extend<mode>xf3_i387): New insn pattern.
        (log<mode>2): Rename from logsf2 and logdf2 and macroize insn
        patterns using X87MODEF12 mode macro.  Extend operand 1
        to XFmode. Use SSE_FLOAT_MODE_P to disable patterns for SSE math.
        (log10<mode>2): Ditto.
        (log2<mode>2): Ditto.
        (log1p<mode>2): Ditto.
        (logb<mode>2): Ditto.
        (fyl2xp1xf3_i387): Rename from fyl2xp1_xf3.
        (fyl2xp1_extend<mode>xf3_i387): New insn pattern.
        (*fxtractxf3_i387): Rename from *fxtractxf3.
        (fxtract_extend<mode>xf3_i387): New insn pattern.
        (ilogbsi2): Use match_dup 3, not match_operand:XF 3.
        * config/i386/i386.c (ix86_emit_i387_log1p): Use gen_fyl2xp1xf3_i387()
        and gen_fyl2xxf3_i387().

2007-01-14  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-unswitch.c (unswitch_loop): Do not call fix_loop_placement.
        * cfgloopmanip.c (fix_loop_placement): Made static.  Use
        get_loop_exit_edges.  Changed return type to bool.
        * cfgloop.h (fix_loop_placement): Declaration removed.

2007-01-14  Dorit Nuzman  <dorit@il.ibm.com>

        * param.h (MIN_VECT_LOOP_BOUND): New.
        * params.def (MIN_VECT_LOOP_BOUND): New.
        * tree-vectorizer.c (slpeel_tree_peel_loop_to_edge): Takes another
        argument - minimum threshold for number of iterations.
        * tree-vectorizer.h (slpeel_tree_peel_loop_to_edge): Add another
        argument to declaration.
        * tree-vect-analyze.c (vect_analyze_operations): Check value of
        MIN_VECT_LOOP_BOUND.
        * tree-vect-transform.c (vect_do_peeling_for_loop_bound): Call
        slpeel_tree_peel_loop_to_edge with additional argument.
        (vect_do_peeling_for_alignment): Likewise.
        * doc/invoke.texi (min-vect-loop-bound): Document new param option.

2007-01-14  Uros Bizjak  <ubizjak@gmail.com>

        PR target/30413
        * config/i386/i386.c (print_operand) ['z']: Output 'b' for
        operands of size 1.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-dfa.c (remove_referenced_var): New function.
        * tree-ssa-live.c (remove_unused_locals): Walk referenced vars and
        prune referenced vars list too.
        * tree-flow.h (remove_referenced_var): Declare.

2007-01-14  Jan Hubicka  <jh@suse.cz>

        * tree-eh.c (add_stmt_to_eh_region_fn): Do not add call_exprs
        separately.
        (remove_stmt_from_eh_region_fn): Do not remove call_exprs.
        (verify_eh_throw_stmt_node, verify_eh_throw_table_statements): Kill.
        * except.h (verify_eh_throw_table_statements): Kill prototype.
        * cfgexpand.c (expand_gimple_basic_block): Propagate Eh regions
        into call exrepssions.
        * tree-optimize.c (execute_free_cfg_annotatiosn): Do not call
        eh trhow verifier.
        * tree-cfg.c: Include pointer-set.h.
        (verify_node_sharing): Work on pointer set.
        (verify_eh_throw_stmt_node): New.
        (verify_stmts): Use pointers sets, verify throw_stmt.

2007-01-13  Zdenek Dvorak <dvorakz@suse.cz>

        * ipa-reference.c (analyze_function): Consider also addresses taken
        in phi nodes.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * c-typeck.c (null_pointer_constant_p): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (build_c_cast): Likewise.

2007-01-12  Roger Sayle  <roger@eyesopen.com>

        * tree.h (force_fit_type_double): Remove unused final argument.
        * c-common.c (constant_expression_warning): Replace use of
        TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        (convert_and_check): Likewise.
        (shorten_compare): Update call to force_fit_type_double.
        (c_common_truthvalue_conversion) <INTEGER_CST>: Use integer_zerop.
        * convert.c (convert_to_pointer): Update call to
        force_fit_type_double.
        * fold-const.c (force_fit_type_double): Remove overflowed_const
        argument.
        (int_const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_negate_const,
        fold_abs_const, fold_not_const): Remove the final argument from
        calls to force_fit_type_double.

2007-01-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * configure.ac: Set insn to "nop" for spu-*-* also.
        * configure: Regenerate.

2007-01-12  Olga Golovanevsky  <olga@il.ibm.com>

        * builtins.def : Add BUILT_IN_FREE.

2007-01-12  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/30443
        * tree-inline.c (tree_function_versioning): Do not optimize when
        cloning for inlining.

2007-01-12  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/loop.texi: Document recording of loop exits.
        * cfgloopmanip.c (loopify, duplicate_loop): Use alloc_loop.
        (update_single_exits_after_duplication,
        update_single_exit_for_duplicated_loop,
        update_single_exit_for_duplicated_loops): Removed.
        (duplicate_loop_to_header_edge): Do not call
        update_single_exits_after_duplication and
        update_single_exit_for_duplicated_loops.
        (loop_version): Do not update single_exit information.
        (fix_loop_structure): Use record_loop_exits instead of
        mark_single_exit_loops.
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update
        the lists of loop exits.
        * cfghooks.c (redirect_edge_and_branch, redirect_edge_and_branch_force,
        split_edge, merge_blocks): Update the lists of loop exits.
        * modulo-sched.c (sms_schedule): Pass LOOPS_HAVE_RECORDED_EXITS to
        loop_optimizer_init.
        * loop-init.c (loop_optimizer_init): Call record_loop_exits instead
        of mark_single_exit_loops.
        (loop_optimizer_finalize): Call release_recorded_exits.
        * tree-ssa-loop.c (tree_loop_optimizer_init): Pass
        LOOPS_HAVE_RECORDED_EXITS to loop_optimizer_init.
        * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg): Do not
        update single exit information.
        * lambda-code.c (perfect_nestify): Ditto.
        * cfgloop.c (flow_loop_free): Destroy the list of exits of the loop.
        (mark_single_exit_loops): Removed.
        (alloc_loop, loop_exit_hash, loop_exit_eq, loop_exit_free,
        get_exit_descriptions, rescan_loop_exit, record_loop_exits,
        dump_recorded_exit, dump_recorded_exits, release_recorded_exits): New
        functions.
        (get_loop_exit_edges, single_exit): Use recorded exit lists.
        (add_bb_to_loop, remove_bb_from_loops): Update the lists of loop exits.
        (verify_loop_structure): Verify consistency of the exit lists.
        (flow_loops_find): Use alloc_loop.  Initialize exits hash.
        (set_single_exit): Removed.
        * cfgloop.h (struct loop_exit): New function.
        (struct loop): single_exit_ field replaced by exits field.
        (LOOPS_HAVE_MARKED_SINGLE_EXITS): Replaced by LOOPS_HAVE_RECORDED_EXITS.
        (struct loops): Added exits hash.
        (mark_single_exit_loops, set_single_exit): Declaration removed.
        (release_recorded_exits, record_loop_exits, rescan_loop_exit): Declare.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Avoid use of @headitem.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * cse.c (cse_insn): Move HAVE_CC0 code after declarations.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * doc/install.texi: Fix m68k-*-* anchor and add m68k-*-* to the
        list of targets.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document -mno-bitfield, -mno-rtd and -mno-short.
        * config/m68k/m68k.opt: Resort options.
        (mbitfield, mrtd, mshort): Remove RejectNegative properties.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * doc/invoke.texi: Document the macros that are defined by
        m68k's -mtune and -mhard-float options.
        * config/m68k/m68k-protos.h (m68k_cpp_cpu_ident) Declare.
        (m68k_cpp_cpu_family): Likewise.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Add a full set
        of __ucfv*__ macros.  Define __mcffpu__ if generating code for
        ColdFire FPUs.  Define __mcf_cpu_* and __mcf_family_* macros.
        * config/m68k/m68k.c (m68k_cpp_cpu_ident): New function.
        (m68k_cpp_cpu_family): Likewise.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Treat all mc68*
        macros besides mc68000 as tuning macros.  Use a switch statement
        to set them and mcpu32.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h: Use TARGET_68040 instead of TARGET_68040_ONLY.
        (TARGET_68040_ONLY): Rename to...
        (TARGET_68040): ...this.
        * config/m68k/m68k.c: Use TARGET_68040 instead of TARGET_68040_ONLY.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m680[012]0-*-*, m68k*-*-*): Set m68k_cpu_ident to
        the -mcpu= argument associated with the --with-cpu setting.
        Define M68K_DEFAULT_TUNE to the default -mtune= option,
        if different from the one implied by the -mcpu setting.
        Accept --with-cpu=FOO if FOO is listed in m68k-devices.def,
        using mcpu=FOO as the default CPU option.  Set target_cpu_default2.
        * doc/invoke.texi: Mention ColdFire in the introduction to the
        m68k options.  Document the new -march, -mcpu, -mtune, -mdiv,
        -mno-div and -mhard-float options.  Make -m68881 a synonym for
        -mhard-float.  Document the previously-undocumented -m5206e,
        -m528x, -m5307 and -m5407 options.  Tweak the existing option
        documentation for consistency.
        * doc/install.texi: Mention new --with-cpu arguments.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Only use the
        default CPU if neither -mcpu nor -march are specified.
        (ASM_CPU_SPEC): Pass down -mcpu and -march options.
        (TARGET_CPU_CPP_BUILTINS): Set __mcfisa*__ macros from
        TARGET_ISA*.  Set the legacy __mcf*__ cpu macros in the same way,
        using m68k_tune to decide between families that implement the
        same ISA.  Use m68k_tune to set __mcfv4e__.
        (FL_BITFIELD, FL_68881, FL_COLDFIRE, FL_CF_HWDIV, FL_CF_MAC)
        (FL_CF_EMAC, FL_CF_EMAC_B, FL_CF_USP, FL_CF_FPU, FL_ISA_68000)
        (FL_ISA_68010, FL_ISA_68020, FL_ISA_68040, FL_ISA_A, FL_ISA_B)
        (FL_ISA_C, FL_ISA_MMU): New macros.
        (MASK_COLDFIRE): Delete.
        (TARGET_68010, TARGET_68020, TARGET_68040_ONLY, TARGET_COLDFIRE)
        (TARGET_ISAB): Redefine in terms of m68k_cpu_flags.
        (TARGET_68881, TARGET_COLDFIRE_FPU): Redefine in terms of m68k_fpu.
        (TARGET_HARD_FLOAT): Do not define here.
        (TARGET_ISAAPLUS, TARGET_ISAC): New macros.
        (TUNE_68000): New macro.
        (TUNE_68000_10): Redefine in terms of TUNE_68000 and TUNE_68010.
        (TUNE_68010, TUNE_68030, TUNE_68040, TUNE_68060, TUNE_CPU32)
        (TUNE_CFV2): Redefine in terms of m68k_tune.
        (uarch_type, target_device, fpu_type): New enums.
        (m68k_cpu, m68k_tune, m68k_fpu, m68k_cpu_flags): Declare.
        * config/m68k/m68k.c (TARGET_DEFAULT): Remove MASK_68881.
        (FL_FOR_isa_00, FL_FOR_isa_10, FL_FOR_isa_20, FL_FOR_isa_40)
        (FL_FOR_isa_cpu32, FL_FOR_isa_a, FL_FOR_isa_aplus, FL_FOR_isa_b)
        (FL_FOR_isa_c): New macros.
        (m68k_isa): New enum.
        (m68k_target_selection): New structure.
        (all_devices, all_isas, all_microarchs): New tables.
        (m68k_cpu_entry, m68k_arch_entry, m68k_tune_entry, m68k_cpu)
        (m68k_tune, m68k_fpu, m68k_cpu_flags): New variables.
        (MASK_ALL_CPU_BITS): Delete.
        (m68k_find_selection): New function.
        (m68k_handle_option): Handle -mcpu=, -march= and -mtune=.
        Map the legacy target options to a combination of the new ones.
        (override_options): Set m68k_cpu, m68k_tune, m68k_fpu and
        m68k_cpu_flags.  Handle M68K_DEFAULT_TUNE.  Use m68k_cpu_flags
        to derive default MASK_BITFIELD, MASK_CF_HWDIV and MASK_HARD_FLOAT
        settings.
        * config/m68k/m68k.opt (m5200, m5206e, m528x, m5307, m5407, mcfv4e)
        (m68010, m68020, m68020-40, m68020-60, m68030, m68040): Remove Mask
        properties.
        (m68881, msoft-float): Change mask from 68881 to HARD_FLOAT.
        (march=, mcpu=, mdiv, mhard-float, mtune=): New options.
        * config/m68k/m68k-devices.def: New file.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>
            Nathan Sidwell  <nathan@codesourcery.com>

        * config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
        (SUBTARGET_EXTRA_SPECS): New macros.
        * config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
        use %(asm_cpu_spec) instead.
        * config/m68k/m68k-none.h (ASM_SPEC): Likewise.
        * config/m68k/openbsd.h (ASM_SPEC): Likewise.
        * config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
        (EXTRA_SPECS): Rename to...
        (SUBTARGET_EXTRA_SPECS): ...this.

2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>
            Julian Brown  <julian@codesourcery.com>

        * config.gcc (m68k-*-aout*, m68k-*-coff*, m68020-*-elf*, m68k-*-elf*)
        (m68k-*-uclinux*, m68k-*-linux*, m68k-*-rtems*): Set default_m68k_cpu
        to the configuration's default CPU.
        (m68010-*-netbsdelf*, m68k*-*-netbsdelf*, m68k*-*-openbsd*): Likewise.
        Remove default masks.
        (m680[012]0-*-*): Set the default with_cpu to the first part of
        the target name.
        (m68k*-*-*): Set the default with_cpu to m$default_m68k_cpu.
        (m68k*-*-linux): Extend the --with-cpu handling to...
        (m680[012]0-*-*, m68k*-*-*): ...these configurations.  Allow m68000
        and m68010.  Don't set target_cpu_default2.
        * doc/install.texi: Document --with-cpu for m68k.
        * config/m68k/m68k.h (OPTION_DEFAULT_SPECS): Define.
        * config/m68k/m68k-none.h (TARGET_CPU_DEFAULT, M68K_CPU_m68k)
        (M68K_CPU_m68000, M68K_CPU_m68010, M68K_CPU_m68020, M68K_CPU_m68030)
        (M68K_CPU_m68040, M68K_CPU_m68302, M68K_CPU_m68332, TARGET_DEFAULT)
        (ASM_CPU_DEFAULT_SPEC, CC1_CPU_DEFAULT_SPEC): Delete.
        (ASM_SPEC): Remove use of %(asm_cpu_default).
        (EXTRA_SPECS, SUBTARGET_EXTRA_SPECS, MULTILIB_DEFAULTS): Delete.
        * config/m68k/linux.h (TARGET_DEFAULT): Delete.
        (CPP_SPEC): Merge definitions.  Do not handle __HAVE_68881__ here.
        * config/m68k/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Define
        __HAVE_FPU__ if TARGET_HARD_FLOAT.
        (TARGET_DEFAULT): Delete.
        (EXTRA_SPECS): Delete cpp_cpu_default_spec, cpp_cpu_spec,
        cpp_fpu_spec, asm_default_spec and netbsd_cpp_spec.
        (CPP_CPU_SPEC): Delete.
        (TARGET_VERSION): Merge definitions, using TARGET_68010 to pick
        the appropriate string.
        (CPP_CPU_DEFAULT_SPEC, ASM_DEFAULT_SPEC, CPP_FPU_SPEC): Delete.
        (CPP_SPEC): Define to NETBSD_CPP_SPEC.
        (ASM_SPEC): Don't use %(asm_default_spec).
        * config/m68k/m68k.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
        TARGET_DEFAULT and add MASK_68881.
        * config/m68k/m68k.md: Remove mention of TARGET_DEFAULT from comments.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config.gcc (m68010-*-netbsdelf*): Add MASK_68010.
        (m68k*-*-netbsdelf*, m68k*-*-openbsd*, m68k*-linux*): Add
        MASK_68010 alongside MASK_68020.
        * doc/invoke.texi: Document -m68010.
        * config/m68k/m68k.opt (m68010): New.
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define mc68010
        if TUNE_68010.
        (TUNE_68010): New macro.
        * config/m68k/m68k-none.h (M68K_CPU_m68k, M68K_CPU_m68010)
        (M68K_CPU_m68020, M68K_CPU_m68030, M68K_CPU_m68040)
        (M68K_CPU_m68332): Add MASK_68010.
        * config/m68k/linux.h (TARGET_DEFAULT): Add MASK_68010 to
        fallback definition.
        * config/m68k/netbsd-elf.h (CPP_CPU_SPEC): Remove now-redundant
        defines.
        * config/m68k/m68k.c (MASK_ALL_CPU_BITS): Add MASK_68010.
        (m68k_handle_option): Handle OPT_m68010.  Add MASK_68010
        to all entries that use MASK_68020.
        (output_move_simode_const, output_move_himode, output_move_qimode)
        (output_move_stricthi, output_move_strictqi): Use TARGET_68010
        instead of TARGET_68020 to select clr behavior.  Remove comment
        about there being no TARGET_68010.
        * config/m68k/m68k.md: Likewise throughout.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TARGET_ISAB): New macro.
        * config/m68k/m68k.c: Use TARGET_ISAB rather than TARGET_CFV4.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (LEGITIMATE_INDEX_P, LEGITIMIZE_ADDRESS): Use
        TARGET_COLDFIRE_FPU instead of TARGET_CFV4E.

2007-01-12  Julian Brown  <julian@codesourcery.com>

        * config/m68k/m68k.h (TUNE_68040_60): New macro.
        * config/m68k/m68k.c (standard_68881_constant_p): Use it.
        * config/m68k/m68k.md: Likewise.

2007-01-12  Julian Brown  <julian@codesourcery.com>
            Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Use TUNE_68030
        instead of TARGET_68030, TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060 and TUNE_CPU32 instead of
        TARGET_CPU32.
        (TARGET_CPU32): Rename to...
        (TUNE_CPU32): ...this.
        (TUNE_68000_10, TUNE_68030, TUNE_68040, TUNE_68060)
        (TUNE_CFV2): New macros.
        * config/m68k/netbsd-elf.h (LONG_DOUBLE_TYPE_SIZE): Simplify;
        remove conditions that are implied by TARGET_68020.
        * config/m68k/m68k.c (m68k_output_function_prologue): Use TUNE_68040
        instead of TARGET_68040 and TUNE_CPU32 instead of TARGET_CPU32.
        (m68k_output_function_epilogue): Likewise.
        (m68k_rtx_costs): Likewise.  Use TUNE_68060 instead of TARGET_68060
        and TUNE_CFV2 instead of TARGET_5200.  Use TUNE_68000_10 instead of
        "!TARGET_68020 && !TARGET_COLDFIRE" to choose between 68000 and
        non-68000 timings.  Refactor multiplication and division costs.
        (output_addsi3): Use TUNE_68040 instead of TARGET_68040 and
        TUNE_CPU32 instead of TARGET_CPU32.
        (standard_68881_constant_p): Use TUNE_68040 instead of TARGET_68040
        and TUNE_68060 instead of TARGET_68060.
        * config/m68k/m68k.md: Use TUNE_68040 instead of TARGET_68040,
        TUNE_68060 instead of TARGET_68060, and TUNE_CPU32 instead of
        TARGET_CPU32.
        (movsi_const0): Use TUNE_68000_10 rather than "!TARGET_68020
        && !TARGET_COLDFIRE" to choose between moveq and clr.
        Likewise in the unnamed movsf pattern.
        (ashlsi_17_24, lshrsi_17_24): Guard with TUNE_68000_10 rather than
        "!TARGET_68020 && !TARGET_COLDFIRE".  Likewise the unnamed
        ashiftrt pattern.

2007-01-12  Richard Sandiford  <richard@codesourcery.com>

        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Increase amount
        of tabbing before backslashes.

2007-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa-linux.h (ASM_OUTPUT_INTERNAL_LABEL): Undefine.
        * pa.h (ASM_OUTPUT_LABEL): Output colon when using GAS.
        (ASM_OUTPUT_INTERNAL_LABEL): Define.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-ivopts.c (extract_cond_operands): Split from
        find_interesting_uses_cond.
        (find_interesting_uses_cond): Use extract_cond_operands.
        (rewrite_use_compare): Use extract_cond_operands and
        force_gimple_operand_bsi.  Do not call update_stmt.
        (determine_use_iv_cost_condition): Use extract_cond_operands.
        Return cheaper of using original bound and changing the exit bound.

2007-01-11  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/29516
        * tree-ssa-address.c (tree_mem_ref_addr, add_to_parts,
        most_expensive_mult_to_index, addr_to_parts,
        create_mem_ref, maybe_fold_tmr): Make the type of
        fields of TARGET_MEM_REF sizetype.
        (move_fixed_address_to_symbol, move_pointer_to_base):
        New functions.
        * tree.def (TARGET_MEM_REF): Add comment on types of
        the operands.

2007-01-11  Joseph Myers  <joseph@codesourcery.com>

        * c-common.c (vector_types_convertible_p): Treat opaque types as
        always convertible if they have the same size, but not otherwise.

2007-01-11  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (struct noce_if_info): Add comments to the fields.
        Remove the b_unconditional field.
        (noce_try_sign_mask): Do not look at b_unconditional.
        (noce_process_if_block): Do not use merge_if_blocks.  Update
        the CFG here.  Do not set b_unconditional.
        (cond_move_process_if_block): Likewise.
        (find_cond_trap): Likewise.
        (check_cond_move_block): Require simple jump insns at the end
        of the basic block.

2007-01-11  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/1046
        * tree-tailcall.c (suitable_for_tail_call_opt_p): Use TREE_ADDRESSABLE
        when alias info is not ready.
        (pass_tail_recursion): Do not require aliasing.
        * tree-ssa-copyrename.c (pass_rename_ssa_cop): Likewise.
        * tree-ssa-ccp.c (pass_ccp, pass_fold_builtins): Likewise.
        * tree-ssa-copy.c (pass_copy_prop): Likewise.
        * tree-ssa-forwprop.c (pass_forwprop): Likewise.
        * tree-ssa-dce.c (pass_dce, pass_dce_loop, pass_cd_dce): Likewise.
        * passes.c (init_optimization_passes): Execute rename_ssa_copies,
        ccp, forwprop, copy_prop, merge_phi, copy_prop, dce and tail recursion
        before inlining.
        * tree-ssa-operands.c (add_virtual_operand, get_indirect_ref_operand):
        When aliasing is not build, mark statement as volatile.

2007-01-11  Tom Tromey  <tromey@redhat.com>

        PR preprocessor/15185, PR preprocessor/20989:
        * doc/cppopts.texi <-MT>: Update description of algorithm for
        computing default target.
        <-M, -MD>: Reword "basename" text.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * builtins.c (expand_builtin_pow, expand_builtin_powi,
        fold_builtin_cabs, fold_builtin_sqrt, fold_builtin_trunc,
        fold_builtin_floor, fold_builtin_ceil, fold_builtin_round,
        fold_builtin_int_int_roundingfn, fold_builtin_bitop,
        fold_builtin_bswap, real_constp, fold_builtin_pow,
        fold_builtin_powi, fold_builtin_signbit, fold_builtin_copysign,
        do_mpfr_arg1, do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Replace
        uses of the macro TREE_CONSTANT_OVERFLOW with TREE_OVERFLOW.
        * convert.c (convert_to_pointer): Likewise.
        * expr.c (highest_pow2_factor, expand_expr_real_1): Likewise.
        * fold-const.c (force_fit_type, fold_negate_expr, int_const_binop,
        const_binop, fold_convert_const_int_from_int,
        fold_convert_const_int_from_real,
        fold_convert_const_real_from_real, sign_bit_p,
        optimize_minmax_comparison, extract_muldiv_1, fold_div_compare,
        fold_sign_changed_comparison, fold_unary, fold_comparison,
        fold_binary, multiple_of_p, tree_Expr_non_zero_p,
        fold_negate_const, fold_abs_const, fold_not_const): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * stor-layout.c (place_field, layout_type): Likewise.
        * tree-chrec.c (keep_cast): Likewise.
        * tree.c (build_vector, build_real, build_real_from_int_cst,
        build_complex): Likewise.

2007-01-11  Roger Sayle  <roger@eyesopen.com>

        * tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
        treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.

2007-01-11  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac (strict1_warn): Rename to strict_warn.
        (WERROR, --enable-werror, symlink hacks, stage1_cflags,
        cc_set_by_configure, quoted_cc_set_by_configure,
        stage_prefix_set_by_configure, quoted_stage_prefix_set_by_configure,
        all_boot_languages, all_stagestuff): Remove.
        (target_list): Remove bootstrap targets.
        * Makefile.in (quickstrap): Unconditionally make a synonym of all.
        (BOOT_LANGUAGES, STAGE1_CFLAGS, STAGE1_CHECKING,
        REMAKEFLAGS, FLAGS_TO_PASS, PREPEND_DOTDOT_TO_RELATIVE_PATHS,
        SUBDIR_FLAGS_TO_PASS, WERROR_FLAGS, STRICT2_WARN, LANG_STAGESTUFF,
        VOL_FILES, POSTSTAGE1_FLAGS_TO_PASS, STAGE2_FLAGS_TO_PASS,
        STAGEPROFILE_FLAGS_TO_PASS, STAGEFEEDBACK_FLAGS_TO_PASS, stage1_build,
        stage1_copy, stage2_build, stage2_copy, stageprofile_build,
        stageprofile_copy, stage3_build, stage3_copy, stagefeedback_build,
        stagefeedback_copy, stage4_build, clean_s1, clean_sw, bootstrap,
        bootstrap-lean, bootstrap2, bootstrap2-lean, bootstrap3,
        bootstrap3-lean, bootstrap4, bootstrap4-lean, unstage1, unstage2,
        unstage3, unstage4, unstageprofile, unstagefeedback, restage, restage2,
        restage3, restage4, restageprofile, restagefeedback, bubbleestrap,
        cleanstrap, unstrap, restrap, *compare, *compare3, *compare4,
        *compare-lean, *compare3-lean, *compare4-lean, stage1-start, stage1,
        stage2-start, stage2, stage3-start, stage3, stage4-start, stage4,
        stageprofile-start, stageprofile, stagefeedback-start, stagefeedback,
        risky-stage1, risky-stage2, risky-stage3, risky-stage4): Remove.
        (ORDINARY_FLAGS_TO_PASS): Rename to FLAGS_TO_PASS.
        (STAGECOPYSTUFF, STAGEMOVESTUFF): Consolidate into MOSTLYCLEANFILES.
        (mostlyclean): Adjust.
        (clean, distclean): Don't mention bootstrap stuff.
        * configure: Regenerate.
        * ada/config-lang.in, cp/config-lang.in, forttran/config-lang.in,
        java/config-lang.in, objc/config-lang.in, objcp/config-lang.in,
        treelang/config-lang.in (stagestuff): Remove.
        * doc/sourcebuild.texi (stage1, stage2, stage3, stage4,
        stageprofile, stagefeedback, stagestuff): Remove mention.

2007-01-11  Nick Clifton  <nickc@redhat.com>

        * config/mcore/predicates.md (mcore_general_movesrc_operand):
        Accept CONSTs.
        (mcore_general_movdst_operand): Do not accept CONST_INTs.
        (mcore_arith_K_S_operand): Run the test for the S constraint not
        the test for the M constraint.
        (mcore_addsub_operand): Do not accept integer values that are
        larger than 32 bits.
        * config/mcore/mcore.md: Remove unused constraints from split.
        (andsi3): Use HOST_WIDE_INT instead of int to hold an INTVAL.
        (addsi3): Likewise.
        (allocate_stack): Likewise.
        * config/mcore/mcore.c (mcore_print_operand): Restrict output of P
        operands to 32 bits.
        (mcore_const_costs): Use HOST_WIDE_INT instead of int to hold an
        INTVAL.
        (mcore_and_cost, mcore_modify_comparison, const_ok_for_mcore,
        mcore_const_ok_for_inline, mcore_const_trick_uses_not,
        try_constant_tricks, mcore_num_ones, mcore_num_zeros,
        mcore_output_bclri, mcore_output_andn, output_inline_const,
        mcore_output_move, mcore_output_movedouble): Likewise.
        (mcore_output_cmov): Use CONST_OK_FOR_M and CONST_OK_FOR_N.
        (output_inline_const): Likewise.
        (output_inline_const): Fix format strings used in sprintf
        statements.
        * config/mcore/mcore-protos.h: Update prototypes for changed
        functions in mcore.c.
        * config/mcore/mcore.h (CONST_OK_FOR_I): Cast values to
        HOST_WIDE_INT and not int.
        (CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M,
        CONST_OK_FOR_N): Likewise.
        (LEGITIMATE_CONSTANT_P): Also check CONSTANT_P.
        (GO_IF_LEGITIMATE_INDEX): Use HOST_WIDE_INT instead of int to hold
        an INTVAL.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-vrp.c (remove_range_assertions): Release defs.
        * tree-ssa-loop-ivopts.c (rmeove_statement): Likewise.
        * tree-ssa-dom.c (remove_stmt_or_phi): Likewise.

2007-01-10  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.c (arm_rtx_costs_1): Handle mutiply-subtract.
        * config/arm/arm.md (mulsi3subsi): New insn.

2007-01-10  Zdenek Dvorak <dvorakz@suse.cz>

        * tree-ssa-loop-manip.c (tree_unroll_loop): Make it a wrapper over ...
        (tree_transform_and_unroll_loop): New.
        * tree-flow.h (transform_callback, tree_transform_and_unroll_loop):
        Declare.

2007-01-10  Robert Kennedy <jimbob@google.com>

        * fold-const.c (fold_comparison): Fold comparisons like (x *
        1000 < 0) to (x < 0).

2007-01-10  Ian Lance Taylor  <iant@google.com>

        * tree-pretty-print.c (dump_generic_node): Print parentheses when
        operands have the same priority.

2007-01-10  Tom Tromey  <tromey@redhat.com>

        * fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.
        (fold_binary): Likewise.
        * langhooks.c (lhd_can_use_bit_fields_p): Removed.
        * langhooks-def.h (lhd_can_use_bit_fields_p): Removed.
        (LANG_HOOKS_CAN_USE_BIT_FIELDS_P): Removed.
        (LANG_HOOKS_INITIALIZER): Remove LANG_HOOKS_CAN_USE_BIT_FIELDS_P.
        * langhooks.h (struct lang_hooks): Removed field
        'can_use_bit_fields_p'.

2007-01-10  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.

2007-01-10  Razya Ladelsky  <razya@il.ibm.com>

        * function.c (get_last_funcdef_no): New function.
        * function.h (get_last_funcdef_no): Declare.
        * tree-inline.c (initialize_cfun): Add initialization.
        (tree_function_versioning): Cleanup.

2007-01-10  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (setup_one_parameter): Do not propagate into abnormal
        PHIs.

2007-01-10  Sa Liu  <saliu@de.ibm.com>
            Ben Elliston  <bje@au.ibm.com>

        * spu.h (STACK_SAVE_AREA): Use VOIDmode for SAVE_FUNCTION, SImode
        for SAVE_NONLOCAL and Pmode for any other save level.
        * spu-protos.h (spu_restore_stack_block): Declare.
        * spu.md (save_stack_block): Remove.
        (restore_stack_block): Call spu_restore_stack_block.
        * spu.c (spu_restore_stack_block): New function.
        (spu_expand_epilogue): Remove old comment.

2007-01-09  Zdenek Dvorak <dvorakz@suse.cz>

        PR tree-optimization/30322
        * tree-ssa-loop-ivopts.c (fold_affine_expr, iv_value): Removed.
        (cand_value_at): Return the value as aff_tree.
        (may_eliminate_iv): Convert the bound from aff_tree to tree.
        * tree-affine.c (aff_combination_add_cst, aff_combination_add_product,
        aff_combination_mult): New functions.
        (aff_combination_add): Use aff_combination_add_cst.
        (aff_combination_convert): Allow conversions to a wider type.
        (tree_to_aff_combination): Handle BIT_NOT_EXPR.
        * tree-affine.h (aff_combination_mult): Declare.

2007-01-09  Carlos O'Donell  <carlos@codesourcery.com>

        * doc/tm.texi: Update documentation to reflect reality of exec
        and start file search behaviours. Update copyright year.
        * doc/invoke.texi: Explain how GCC_EXEC_PREFIX is used to find
        header file directories.

2007-01-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*sinxf2): Rename to *sinxf2_i387.
        (*cosxf2): Rename to cosxf2_i387.
        (*sindf2, *sinsf2): Extend operand 1 to XFmode.  Macroize patterns
        using X87MODEF12 mode macro. Rename patterns to
        *sin_extend<mode>xf2_i387.  Use SSE_FLOAT_MODE_P to disable patterns
        for SSE math.
        (*cosdf2, *cossf2): Ditto.
        (sincosdf3, sincossf3): Ditto.  Rewrite corresponding splitters
        to match extended input operands.
        (sincos<mode>3): New expander.
        (*sinextendsfdf2, *cosextendsfdf2, *sincosextendsfdf3): Remove
        insn patterns and corresponding splitters.

2007-01-09  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/t-linux (TARGET_LIBGCC2_CFLAGS): Delete.
        (SHLIB_MAPFILES, SHLIB_LINK, SHLIB_INSTALL): Likewise.

2007-01-09  Nicolas Pitre  <nico@cam.org>

        PR target/30173
        * arm/ieee754-df.S (Lad_s): Also test the low word of X for zero.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * target.h (struct gcc_target): New field library_rtti_comdat.
        * target-def.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): New.
        (TARGET_CXX): Add TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * doc/tm.texi (C++ ABI): Document TARGET_CXX_LIBRARY_RTTI_COMDAT.
        * config/darwin.h (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.

2007-01-08  Geoffrey Keating  <geoffk@apple.com>

        * doc/invoke.texi (Optimize Options): Correct description of -O0.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (force_fit_type_double): Export.
        (force_fit_type): Remove.
        * fold-const.c (force_fit_type_double): New function.
        (force_fit_type): Remove.
        (int_const_binop): Use it.
        (fold_convert_const_int_from_int): Likewise.
        (fold_convert_const_int_from_real): Likewise.
        (fold_div_compare): Likewise.
        (fold_sign_changed_comparison): Likewise.
        (fold_unary): Likewise.
        (fold_negate_const): Likewise.
        (fold_abs_const): Likewise.
        (fold_not_const): Likewise.
        * c-common.c (shorten_compare): Use force_fit_type_double.
        * convert.c (convert_to_pointer): Likewise.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree.h (build_int_cst_wide_type): Export.
        * tree.c (build_int_cst_wide_type): New function.
        (build_int_cst_wide): Fix comment.
        * builtins.c (fold_builtin_object_size): Use build_int_cst
        to build -1 or 0 of the correct type.  Use fit_double_type
        to check for overflow.
        * fold-const.c (optimize_bit_field_compare): Use build_int_cst_type
        to build the mask.
        (decode_field_reference): Likewise.
        (all_ones_mask_p): Likewise.
        (native_interpret_int): Use build_int_cst_wide_type.
        (fold_binary): Use build_int_cst_type to build an all-ones
        value.
        * stor-layout.c (set_sizetype): Use build_int_cst_wide_type.

2007-01-08  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/pa/t-pa64 (libgcc_stub.a): Use $(T).

2007-01-09  Ben Elliston  <bje@au.ibm.com>

        * genautomata.c (STATS_OPTION): New option.
        (stats_flag): New flag.
        (gen_automata_option): Handle it.
        (initiate_automaton_gen): Ditto.
        (write_automata): Output statistics only if stats_flag is
        set. Likewise, output time statistics only if time_flag is set.
        * doc/md.texi (Processor pipeline description): Document new flag.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * builtins.c (fold_builtin_int_roundingfn): Use fit_double_type.
        * tree.c (build_int_cst_type): Likewise.
        (size_in_bytes): Don't call force_fit_type on the result.
        (int_fits_type_p): Use fit_double_type.
        * fold-const.c (fit_double_type): New function.
        (force_fit_type): Use it.
        * tree.h (fit_double_type): Export.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-vectorizer.c (gate_increase_alignment): Fix return type.
        * ipa.c (function_and_variable_visibility): Fix return type.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use type
        of offset to build the index.
        * tree-pretty-print.c (dump_generic_node): Don't build negated
        const just for printing.
        * c-pretty-print.c (pp_c_integer_constant): Likewise.
        * builtins.c (fold_builtin_int_roundingfn): Check if result
        fits the type by using force_fit_type and comparing the result.
        * predict.c (predict_loops): Use compare_tree_int for comparison.
        * tree.c (build_int_cst): Fall back to integer_type_node for
        NULL_TREE type.
        (build_int_cst_wide): Assert type is non-null.

2007-01-08  Roberto Costa  <roberto.costa@st.com>

        * tree-vrp.c (extract_range_from_cond_expr): New.
        (extract_range_from_expr): Handle COND_EXPR nodes used as expressions.
        * tree-ssa-ccp.c (get_maxval_strlen): Handle COND_EXPR nodes used
        as expressions.
        (fold_stmt): Bug fix, avoid infinite recursion when folding COND_EXPRs.
        * tree-ssa-forwprop.c (simplify_cond, forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_vars): Handle COND_EXPR nodes
        used as expressions.
        * tree-object-size.c (cond_expr_object_size): New.
        (collect_object_sizes_for): Handle COND_EXPR nodes used as expressions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-forwprop.c (forward_propagate_into_cond,
        tree_ssa_forward_propagate_single_use_va): Release defs of propagated
        statement.

2007-01-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/23603
        * tree-vrp.c (set_value_range_to_truthvalue): New function.
        (extract_range_from_binary): Fall back to truthvalue instead of
        varying for TRUTH_*_EXPR.
        (extract_range_from_comparison): Fall back to truthvalue instead of
        varying.
        (vrp_visit_phi_node): Don't adjust new range bounds to +INF/-INF
        if all visited PHI values were constant.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (cgraph_process_new_functions): Reset reachable flag.
        (cgraph_analyze_function): break out from ...
        (cgraph_finalize_compilation_unit): ... here.
        (cgraph_expand_function): Remove forgoten commented out line.
        (cgraph_optimize): Analyze functions.

2007-01-08  Jan Hubicka  <jh@suse.cz>

        * tree-pas.h (TODO_remove_function): New flag.
        (TODO_update*): Renumber.
        (pass_ipa_increase_alignment,
        pass_ipa_function_and_variable_visibility): New passes.
        * cgraphunit.c (cgraph_increase_alignment): Move to tree-vectorizer.c
        (cgraph_function_and_variable_visibility): Move to ipa.c
        (cgraph_optimize): Don't call cgraph_function_and_variable_visibility,
        cgraph_increase_alignment.
        * ipa-inline.c (cgraph_decide_inlining): Don't push timevar.
        (cgraph_decide_inlining_incrementally): Push TV_INTEGRATION before
        calling tree-inline.
        (cgraph_early_inlining): Do not call cgraph_remove_unreachable_nodes.
        (pass_ipa_inline, pass_early_ipa_inlining): Set TODO_remove_functions
        * tree-vectorizer.c (increase_alignment): Move here from cgraphunit.c
        (gate_increase_alignment): New function.
        (pass_ipa_increase_alignment): New pass.
        * ipa.c: Inline tree-pass.h and timevar.h
        (function_and_variable_visibility): Move here from cgraphunit.c
        * tree-optimize.c (pass_early_local_passes): Add TODO_remove_functions.
        * passes.c (init_optimization_passes): Add the two new passes.
        (execute_todo): Handle cgraph_remove_functions.

2007-01-08  Nick Clifton  <nickc@redhat.com>

        * config/frv/predicates.md (reg_or_0_operand): Accept
        CONST_DOUBLEs.

2007-01-08  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/rtems.h, config/bfin/t-rtems: New.
        * config.gcc: Add bfin*-rtems*.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        * c.opt: Add -flax-vector-conversions.
        * c-typeck.c (convert_for_assignment): Pass flag to
        vector_types_convertible_p to allow emission of note.
        (digest_init): Likewise.
        * c-opts.c: Handle -flax-vector-conversions.
        * c-common.c (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Unless -flax-vector conversions
        has been passed, disallow conversions between vectors with
        differing numbers of subparts and/or element types.  If such
        a conversion is disallowed, possibly emit a note on the first
        occasion only to inform the user of -flax-vector-conversions.
        The new last argument specifies this.
        * c-common.h (flag_lax_vector_conversions): New.
        (vector_types_convertible_p): Add extra argument.
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
        char_type_node for V*QI type vectors.
        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
        Update to satisfy new typechecking rules.
        * config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
        C and C++ variants.
        * doc/invoke.texi (C Dialect Options): Document
        -flax-vector-conversions.

2007-01-08  Mark Shinwell  <shinwell@codesourcery.com>

        PR tree-optimization/29877
        * tree-ssa-ter.c (is_replaceable_p): Deem assignments with
        a register variable on the RHS to not be replaceable.

2007-01-08  Chen Liqin  <liqin@sunnorth.com.cn>
        * config/score/t-score-elf (MULTILIB_OPTIONS): Change.
        * config/score/predicates.md (const_uimm5, sr0_operand, const_simm12,
        const_simm15, const_pow2, const_npow2): Added.
        * config/score/misc.md (insv, extv, extzv, movmemsi,
        move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
        * config/score/score.c (score_address_cost, score_select_cc_mode):
        Added.
        Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
        Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
        Update score_print_operand.
        * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
        Adjust register allocate order and update some macro define.
        * config/score/score-mdaux.c (mdx_unaligned_load, mdx_unsigned_store,
        mdx_block_move_straight, mdx_block_move_loop_head,
        mdx_block_move_loop_body, mdx_block_move_loop_foot, mdx_block_move_loop,
        mdx_block_move): Added.
        (mdx_movsicc, mdp_select_add_imm, mdp_select, mds_zero_extract_andi,
        mdp_limm): Updated and fix some bug and typo.
        * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
        (movsf, movdf, doloop_end): Added.

2007-01-08  Kazu Hirata  <kazu@codesourcery.com>

        * config/arm/arm.c, config/arm/arm.h, config/arm/arm.md,
        config/arm/thumb2.md: Fix comment typos.
        * doc/extend.texi: Fix a typo.

2007-01-07  Eric Christopher  <echristo@apple.com>

        * configure.ac: Check for __stack_chk_fail for darwin.
        * configure: Regenerate.

2007-01-07  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (extract_range_from_assert): CSE calls to
        compare_values where possible.
        (extract_range_from_unary_expr): Likewise.

2007-01-07  Anatoly Sokolov <aesok@post.ru>

        * config/avr/avr-protos.h (call_insn_operand): Delete prototype.
        * config/avr/avr.c (call_insn_operand): Delete function.
        * config/avr/avr.md (*pushqi, *pushhi, *pushsi, *pushsf): Use REG_SP
        instead of register number. Use predicates.
        * config/avr/predicates.md (const0_operand, reg_or_0_operand,
        call_insn_operand): Add.

2007-01-06  Jan Hubicka  <jh@suse.cz>

        * tree-pass.h (pass_build_cgraph_edges): Declare.
        * cgraphunit.c (record_refernece): Move to cgraphbuild.c
        (visited_nodes): Remove.
        (cgraph_create_edges): Move to cgraphbuild.c; rename to
        build_cgrpah_edges; make visited_nodes local.
        (cgraph_process_new_functions): DO not call initialize_inline_failed.
        (record_references_in_initializer): Move to cgraphbuild.c
        (initialize_inline_failed, rebuild_cgraph_edges,
        pass_rebuild_cgraph_edges): Move to cgraphbuild.c.
        (verify_cgraph_node): Make visited_nodes local.
        (cgraph_analyze_function): Do not call cgraph_create_edges and
        initialize_inline_failed.
        (cgraph_expand_function): Do not call cgraph_lower_function;
        assert that function is already lowered.
        * Makefile.in (cgraphbuild.o): New.
        * passes.c (init_optimization_passes): Add pass_build_cgraph_edges
        at the end of lowering passes.

2007-01-06  Steven Bosscher  <steven@gcc.gnu.org>

        * ifcvt.c (cond_move_convert_if_block): New function, code
        factored out from...
        (cond_move_process_if_block): ...here.  Call the new function
        on the THEN and ELSE blocks.
        (merge_if_block): Do not copy global_live_at_end, merge_blocks
        already takes care of this.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/19978
        * tree.h (TREE_OVERFLOW_P): New.
        * c-typeck.c (parser_build_unary_op): Warn only if result
        overflowed and operands did not.
        (parser_build_binary_op): Likewise.
        (convert_for_assignment): Remove redundant overflow_warning.
        * c-common.c (overflow_warning): Don't check or set TREE_OVERFLOW.

2007-01-05  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * c-typeck.c (store_init_value): Split over two lines to follow
        the GNU coding style.

2007-01-05  Benjamin Kosnik  <bkoz@redhat.com>

        * c-cppbuiltin.c (c_cpp_builtins): __GXX_EXPERIMENTAL_CPP0X__ to
        __GXX_EXPERIMENTAL_CXX0X__.
        * doc/cpp.texi: Same.

2007-01-05  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27826
        * tree.c (get_narrower): Do not construct COMPONENT_REFs
        with mismatched types.  Instead explicitly build a
        conversion NOP_EXPR.

2007-01-05  Ian Lance Taylor  <iant@google.com>

        * c-common.c (decl_with_nonnull_addr_p): New function.
        (c_common_truthvalue_conversion): Call it.
        * c-typeck.c (build_binary_op): Likewise.
        * c-common.h (decl_with_nonnull_addr_p): Declare.

2007-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR c/30360
        * libgcc2.c (__divdc3): Compare c and d against 0.0 instead of
        denom against 0.0.

2007-01-05  Joel Brobecker  <brobecker@adacore.com>

        * doc/install.texi (Final install): Document the fact that
        the GNAT runtime should not be stripped.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (fold_marked_statements): Update operand caches
        and EH after folding

2007-01-04  Ian Lance Taylor  <iant@google.com>

        * c-common.c (check_function_nonnull): Whitespace fix.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-optimize.c (execute_fixup_cfg): Correct previously mistakely
        comitted older version of patch.
        (pass_fixup_cfg): Add TODOs to verify flow and statements, dump
        function, celanup cfg and collect garbage.

2007-01-04  Mike Stump  <mrs@apple.com>

        * Makefile.in (mostlyclean): Don't remove libgcc anymore.
        (clean): Likewise.

2007-01-04  Eric Christopher  <echristo@apple.com>

        * libgcc2.c (__bswapsi2): Use SItype.
        (__bswapdi2): Use DItype.
        * libgcc2.h: Update for above.

2007-01-04  Paul Brook  <paul@codesourcery.com>

        * config/arm/arm.md (arm_mulsi3, thumb_mulsi3, mulsi3_compare0,
        mulsi_compare0_scratch, mulsi3addsi, mulsi3addsi_compare0,
        mulsi3addsi_compare0_scratch, mulsidi3adddi, mulsidi3,
        umulsidi3, umulsidi3adddi, smulsi3_highpart,
        umulsi3_highpart): Make conditional on !arm_arch6.
        (arm_mulsi3_v6, thumb_mulsi3_v6, mulsi3_compare0_v6,
        mulsi_compare0_scratch_v6, mulsi3addsi_v6, mulsi3addsi_compare0_v6,
        mulsi3addsi_compare0_scratch_v6, mulsidi3adddi_v6, mulsidi3_v6,
        umulsidi3_v6, umulsidi3adddi_v6, smulsi3_highpart_v6,
        umulsi3_highpart_v6): New insns.

2007-01-04  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_convert): When casting an expression to void,
        fold_ignored_result may discover a GIMPLE_MODIFY_STMT which doesn't
        have a type.  Instead of attempting to build a NOP_EXPR, return
        these "special" trees directly.

2007-01-04  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
        MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
        rs6000_cost->fp not 0 as adjustment for outer NEG.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_release_function_body): New function.
        (cgraph_remove_node): Use it.
        * cgraph.h (cgraph_release_function_body): Declare.
        * cgraphunit.c (cgraph_expand_function): Use it.
        * ipa.c (cgraph_remove_unreahchable_nodes): Use it.
        * tree-ssa.c (delete_tree_ssa): Allow to be called before aliasing
        is initialized and while compilation of other function is running.
        * tree-optimize.c (execute_free_cfg_annotations): Move code to clear
        statement CFG annotations from here to ...
        * tree-cfg.c (delete_tree_cfg_annotations): ... here.

2007-01-04  Zdenek Dvorak <dvorakz@suse.cz>

        * cfgloop.h (enum li_flags): Make the constants powers of two.

2007-01-04  Jan Hubicka  <jh@suse.cz>

        * tree-inline.c (copy_bb): Insert new statements to statements_to_fold
        set.
        (fold_marked_statements): New function.
        (optimize_inline_calls, tree_function_versioning): Fold new statements.
        * tree-inline.h (copy_body_data): Add statements_to_fold.

2007-01-03  Daniel Jacobowitz  <dan@codesourcery.com>

        * config.gcc: Mention libgcc/config.host.
        * Makefile.in: Update comments mentioning libgcc.
        (LIBGCC, INSTALL_LIBGCC, GCC_PARTS, mklibgcc): Delete.
        (all.cross, start.encap, rest.encap, rest.cross): Update
        dependencies for libgcc move.
        (libgcc.mk, LIBGCC_DEPS, libgcov.a, libgcc.a, stmp-multilib)
        (clean-target, clean-target-libgcc): Delete.
        (srcdirify, GCC_EXTRA_PARTS): New macros.
        (libgcc-support, libgcc.mvars): New rules.
        (distclean): Remove mention of mklibgcc.
        (install): Don't reference INSTALL_LIBGCC.
        (install-common): Don't reference EXTRA_PARTS.
        (install-libgcc, install-multilib): Delete rules.
        * mklibgcc.in: Delete file.
        * doc/configfiles.texi: Don't mention mklibgcc.

        * config/i386/t-darwin (SHLIB_VERPFX): Delete (moved to libgcc).
        * config/i386/t-darwin64 (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-darwin (SHLIB_VERPFX): Likewise.
        * config/rs6000/t-ppccomm (TARGET_LIBGCC2_CFLAGS, SHLIB_MAPFILES)
        (mklibgcc, ldblspecs): Likewise.

        * config/i386/t-nwld (libgcc.def, libc.def, libpcre.def)
        (posixpre.def): Use $(T).
        (SHLIB_EXT, SHLIB_NAME, SHLIB_SLIBDIR_QUAL, SHLIB_DEF, SHLIB_MAP)
        (SHLIB_SRC, SHLIB_INSTALL): Delete.
        (SHLIB_LINK): Make dummy.
        * config/t-slibgcc-darwin: Delete contents except for dummy SHLIB_LINK.

        * config/frv/t-linux (EXTRA_MULTILIB_PARTS): Clear.

        * config/alpha/t-crtfm: Use $(T) in rules for EXTRA_PARTS.
        * config/alpha/t-vms, config/alpha/t-vms64, config/fr30/t-fr30,
        config/i386/t-rtems-i386, config/ia64/t-ia64, config/rs6000/t-beos,
        config/rs6000/t-newas, config/sparc/t-elf: Likewise.

        * configure.ac (all_outputs): Remove mklibgcc.
        * configure: Regenerated.

2007-01-03  Josh Conner  <jconner@apple.com>

        PR middle-end/29683
        * calls.c (compute_argument_addresses): Set stack and stack_slot
        for partial args, too.
        (store_one_arg): Use locate.size.constant for the size when
        generating a save_area.

2007-01-03  Robert Kennedy <jimbob@google.com>

        * tree-cfg.c (tree_merge_blocks): Release SSA_NAME phi results
        whose definitions are deleted due to basic block merging.

2007-01-03  Paul Brook  <paul@codesourcery.com>

        PR target/16634
        * config/arm/arm.c (output_return_instruction): Pop PC in interrupt
        functions.
        (use_return_insn): Return 0 for Thumb interrupt functions.
        (print_multi_reg): Add rfe argument for IRQ returns.
        (arm_output_epilogue): Pop interrupt return address directly into PC.
        (arm_expand_prologue): Only adjust IRQ return address in Arm mode.

2007-01-03  Paul Brook  <paul@codesourcery.com>

        Merge from sourcerygxx-4_1.
        * config/arm/thumb2.md: New file.
        * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Return True for
        Thumb-2.
        * config/arm/coff.h (JUMP_TABLES_IN_TEXT_SECTION): Ditto.
        * config/arm/aout.h (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump tables.
        * config/arm/aof.h (ASM_OUTPUT_ADDR_DIFF_ELT): Output Thumb-2 jump
        tables.
        (ASM_OUTPUT_ADDR_VEC_ELT): Add !Thumb-2 assertion.
        * config/arm/ieee754-df.S: Use macros for Thumb-2/Unified asm
        comptibility.
        * config/arm/ieee754-sf.S: Ditto.
        * config/arm/arm.c (thumb_base_register_rtx_p): Rename...
        (thumb1_base_register_rtx_p): ... to this.
        (thumb_index_register_rtx_p): Rename...
        (thumb1_index_register_rtx_p): ... to this.
        (thumb_output_function_prologue): Rename...
        (thumb1_output_function_prologue): ... to this.
        (thumb_legitimate_address_p): Rename...
        (thumb1_legitimate_address_p): ... to this.
        (thumb_rtx_costs): Rename...
        (thumb1_rtx_costs): ... to this.
        (thumb_compute_save_reg_mask): Rename...
        (thumb1_compute_save_reg_mask): ... to this.
        (thumb_final_prescan_insn): Rename...
        (thumb1_final_prescan_insn): ... to this.
        (thumb_expand_epilogue): Rename...
        (thumb1_expand_epilogue): ... to this.
        (arm_unwind_emit_stm): Rename...
        (arm_unwind_emit_sequence): ... to this.
        (thumb2_legitimate_index_p, thumb2_legitimate_address_p,
        thumb1_compute_save_reg_mask, arm_dwarf_handle_frame_unspec,
        thumb2_index_mul_operand, output_move_vfp, arm_shift_nmem,
        arm_save_coproc_regs, thumb_set_frame_pointer, arm_print_condition,
        thumb2_final_prescan_insn, thumb2_asm_output_opcode, arm_output_shift,
        thumb2_output_casesi): New functions.
        (TARGET_DWARF_HANDLE_FRAME_UNSPEC): Define.
        (FL_THUMB2, FL_NOTM, FL_DIV, FL_FOR_ARCH6T2, FL_FOR_ARCH7,
        FL_FOR_ARCH7A, FL_FOR_ARCH7R, FL_FOR_ARCH7M, ARM_LSL_NAME,
        THUMB2_WORK_REGS): Define.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv, arm_condexec_count,
        arm_condexec_mask, arm_condexec_masklen)): New variables.
        (all_architectures): Add armv6t2, armv7, armv7a, armv7r and armv7m.
        (arm_override_options): Check new CPU capabilities.
        Set new architecture flag variables.
        (arm_isr_value): Handle v7m interrupt functions.
        (user_return_insn): Return 0 for v7m interrupt functions.  Handle
        Thumb-2.
        (const_ok_for_arm): Handle Thumb-2 constants.
        (arm_gen_constant): Ditto.  Use movw when available.
        (arm_function_ok_for_sibcall): Return false for v7m interrupt
        functions.
        (legitimize_pic_address, arm_call_tls_get_addr): Handle Thumb-2.
        (thumb_find_work_register, arm_load_pic_register,
        legitimize_tls_address, arm_address_cost, load_multiple_sequence,
        emit_ldm_seq, emit_stm_seq, arm_select_cc_mode, get_jump_table_size,
        print_multi_reg, output_mov_long_double_fpa_from_arm,
        output_mov_long_double_arm_from_fpa, output_mov_double_fpa_from_arm,
        output_mov_double_fpa_from_arm, output_move_double,
        arm_compute_save_reg_mask, arm_compute_save_reg0_reg12_mask,
        output_return_instruction, arm_output_function_prologue,
        arm_output_epilogue, arm_get_frame_offsets, arm_regno_class,
        arm_output_mi_thunk, thumb_set_return_address): Ditto.
        (arm_expand_prologue): Handle Thumb-2.  Use arm_save_coproc_regs.
        (arm_coproc_mem_operand): Allow POST_INC/PRE_DEC.
        (arithmetic_instr, shift_op): Use arm_shift_nmem.
        (arm_print_operand): Use arm_print_condition.  Handle '(', ')', '.',
        '!' and 'L'.
        (arm_final_prescan_insn): Use extract_constrain_insn_cached.
        (thumb_expand_prologue): Use thumb_set_frame_pointer.
        (arm_file_start): Output directive for unified syntax.
        (arm_unwind_emit_set): Handle stack alignment instruction.
        * config/arm/lib1funcs.asm: Remove default for __ARM_ARCH__.
        Add v6t2, v7, v7a, v7r and v7m.
        (RETLDM): Add Thumb-2 code.
        (do_it, shift1, do_push, do_pop, COND, THUMB_SYNTAX): New macros.
        * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Define __thumb2__.
        (TARGET_THUMB1, TARGET_32BIT, TARGET_THUMB2, TARGET_DSP_MULTIPLY,
        TARGET_INT_SIMD, TARGET_UNIFIED_ASM, ARM_FT_STACKALIGN, IS_STACKALIGN,
        THUMB2_TRAMPOLINE_TEMPLATE, TRAMPOLINE_ADJUST_ADDRESS,
        ASM_OUTPUT_OPCODE, THUMB2_GO_IF_LEGITIMATE_ADDRESS,
        THUMB2_LEGITIMIZE_ADDRESS, CASE_VECTOR_PC_RELATIVE,
        CASE_VECTOR_SHORTEN_MODE, ADDR_VEC_ALIGN, ASM_OUTPUT_CASE_END,
        ADJUST_INSN_LENGTH): Define.
        (TARGET_REALLY_IWMMXT, TARGET_IWMMXT_ABI, CONDITIONAL_REGISTER_USAGE,
        STATIC_CHAIN_REGNUM, HARD_REGNO_NREGS, INDEX_REG_CLASS,
        BASE_REG_CLASS, MODE_BASE_REG_CLASS, SMALL_REGISTER_CLASSES,
        PREFERRED_RELOAD_CLASS, SECONDARY_OUTPUT_RELOAD_CLASS,
        SECONDARY_INPUT_RELOAD_CLASS, LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P,
        TRAMPOLINE_SIZE, INITIALIZE_TRAMPOLINE, HAVE_PRE_INCREMENT,
        HAVE_POST_DECREMENT, HAVE_PRE_DECREMENT, HAVE_PRE_MODIFY_DISP,
        HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_REG, HAVE_POST_MODIFY_REG,
        REGNO_MODE_OK_FOR_BASE_P, LEGITIMATE_CONSTANT_P,
        REG_MODE_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, GO_IF_LEGITIMATE_ADDRESS,
        LEGITIMIZE_ADDRESS, THUMB2_LEGITIMIZE_ADDRESS,
        GO_IF_MODE_DEPENDENT_ADDRESS, MEMORY_MOVE_COST, BRANCH_COST,
        ASM_APP_OFF, ASM_OUTPUT_CASE_LABEL, ARM_DECLARE_FUNCTION_NAME,
        FINAL_PRESCAN_INSN, PRINT_OPERAND_PUNCT_VALID_P,
        PRINT_OPERAND_ADDRESS): Adjust for Thumb-2.
        (arm_arch_notm, arm_arch_thumb2, arm_arch_hwdiv): New declarations.
        * config/arm/arm-cores.def: Add arm1156t2-s, cortex-a8, cortex-r4 and
        cortex-m3.
        * config/arm/arm-tune.md: Regenerate.
        * config/arm/arm-protos.h: Update prototypes.
        * config/arm/vfp.md: Enable patterns for Thumb-2.
        (arm_movsi_vfp): Add movw alternative.  Use output_move_vfp.
        (arm_movdi_vfp, movsf_vfp, movdf_vfp): Use output_move_vfp.
        (thumb2_movsi_vfp, thumb2_movdi_vfp, thumb2_movsf_vfp,
        thumb2_movdf_vfp, thumb2_movsfcc_vfp, thumb2_movdfcc_vfp): New.
        * config/arm/libunwind.S: Add Thumb-2 code.
        * config/arm/constraints.md: Update include Thumb-2.
        * config/arm/ieee754-sf.S: Add Thumb-2/Unified asm support.
        * config/arm/ieee754-df.S: Ditto.
        * config/arm/bpabi.S: Ditto.
        * config/arm/t-arm (MD_INCLUDES): Add thumb2.md.
        * config/arm/predicates.md (low_register_operand,
        low_reg_or_int_operand, thumb_16bit_operator): New.
        (thumb_cmp_operand, thumb_cmpneg_operand): Rename...
        (thumb1_cmp_operand, thumb1_cmpneg_operand): ... to this.
        * config/arm/t-arm-elf: Add armv7 multilib.
        * config/arm/arm.md: Update patterns for Thumb-2 and Unified asm.
        Include thumb2.md.
        (UNSPEC_STACK_ALIGN, ce_count): New.
        (arm_incscc, arm_decscc, arm_umaxsi3, arm_uminsi3,
        arm_zero_extendsidi2, arm_zero_extendqidi2): New
        insns/expanders.
        * config/arm/fpa.md: Update patterns for Thumb-2 and Unified asm.
        (thumb2_movsf_fpa, thumb2_movdf_fpa, thumb2_movxf_fpa,
        thumb2_movsfcc_fpa, thumb2_movdfcc_fpa): New insns.
        * config/arm/cirrus.md: Update patterns for Thumb-2 and Unified asm.
        (cirrus_thumb2_movdi, cirrus_thumb2_movsi_insn,
        thumb2_cirrus_movsf_hard_insn, thumb2_cirrus_movdf_hard_insn): New
        insns.
        * doc/extend.texi: Document ARMv7-M interrupt functions.
        * doc/invoke.texi: Document Thumb-2 new cores+architectures.

2007-01-03  Jakub Jelinek  <jakub@redhat.com>

        * unwind-dw2.c (SIGNAL_FRAME_BIT, EXTENDED_CONTEXT_BIT): Define.
        (struct _Unwind_Context): Rename args_size to flags, remove
        signal_frame field, add a new args_size field and version field.
        (_Unwind_IsSignalFrame, _Unwind_SetSignalFrame,
        _Unwind_IsExtendedContext): New inline functions.
        (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
        Assume by_value array is only present if _Unwind_IsExtendedContext.
        (_Unwind_GetIPInfo, execute_cfa_program, uw_frame_state_for): Use
        _Unwind_IsSignalFrame.
        (__frame_state_for): Initialize context.flags to EXTENDED_CONTEXT_BIT.
        (uw_update_context_1): Use _Unwind_SetSignalFrame.
        (uw_init_context_1): Initialize context->flags to
        EXTENDED_CONTEXT_BIT.
        * config/rs6000/linux-unwind.h (frob_update_context): Use
        _Unwind_SetSignalFrame.

2007-01-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30353
        * gimplify.c (gimplify_modify_expr_complex_part): Move below
        tree_to_gimple_tuple.  Call tree_to_gimple_tuple when we need
        the value.

2007-01-03  Kazu Hirata  <kazu@codesourcery.com>

        * config/i386/i386.h (NON_STACK_REG_P, REGNO_OK_FOR_SIREG_P,
        REGNO_OK_FOR_DIREG_P, REWRITE_ADDRESS, ASM_OPERAND_LETTER,
        RET, AT_SP): Remove.
        * config/i386/i386.md (*sse_prologue_save_insn): Use return
        instead of RET.

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

        * cgraphunit.c, tree-ssa-alias.c: Fix comment typos.

2007-01-03  Zdenek Dvorak <dvorakz@suse.cz>

        * loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
        * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
        to loop_version.
        * cfgloopmanip.c (scale_loop_frequencies): Export.
        (loopify): Scale the frequencies by prescribed coefficients.
        (set_zero_probability): New function.
        (duplicate_loop_to_header_edge): Improve updating of frequencies.
        (lv_adjust_loop_entry_edge, loop_version): Set probabilities
        and frequencies according to arguments.
        * tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
        correctly.
        * cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
        * modulo-sched.c (sms_schedule): Set probabilities for entering
        versioned loop correctly.
        * tree-vect-transform.c (vect_transform_loop): Ditto.
        * cfgloop.h (loopify, loop_version): Declaration changed.
        (scale_loop_frequencies): Declared.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * cgraph.c: Include tree-flow.h
        (cgraph_add_new-function): Handle IPA_SSA mode; execute
        early_local_passes.
        * cgraph.h (enum cgraph_state): Add CGRAPH_STATE_IPA_SSA.
        * tree-pass.h (pass_all_early_optimizations): Declare.
        * cgraphunit.c (cgraph_process_new_functions): Add IPA_SSA; execute
        early_local_passes.
        (cgraph_analyze_function): Do early_local_passes.
        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-optimize.c (gate_all_optimizations): Do not execute when not in
        SSA form.
        (gate_all_early_local_passes): New gate.
        (pass_early_local_passes): Use new gate.
        (execute_early_local_optimizations): New functions.
        (gate_all_early_optimizations): New gate.
        (pass_all_early_optimizations): New pass.
        (execute_free_datastructures): Free SSA only when initialized.
        (gate_init_datastructures): Init only when optimizing.
        (tree_lowering_passes): Do early local passes when called late.
        * tree-profile.c (do_tree_profiling): Don't profile functions added
        late.
        (do_early_tree_profiling, pass_early_tree_profile): Kill.
        * tree-cfg.c (update_modified_stmts): Do not update when operands are
        not active.
        * passes.c (init_optimizations_passes): Reorder so we go into SSA
        during early_local_passes.
        * Makefile.in (cgraph.o): Add dependency on tree-flow.h.


2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Update copyright year.

2007-01-02  Carlos O'Donell  <carlos@codesourcery.com>

        * Makefile.in: Export GCC_EXEC_PREFIX before calling $(RUNTEST)
        in $(lang_checks) and check-consistency targets.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-mudflap.c (mf_decl_cache_locals, mf_build_check_statement_for):
        Do not add referenced vars.
        * tree-cfg.c (update_modified_stmts): Do not update when SSA operands
        are not active.
        * passes.c (init_optimization_passes): Put mudflap_2 after
        free_datastructures.

2007-01-02  Jan Hubicka  <jh@suse.cz>

        * tree-optimize (execute_fixup_cfg): Set after_inlining flag.
        Set NOTHROW flag on call statements proved to be nothrow.
        Update statement of local calls so new pure/const functions are
        updated. Update_ssa when in ssa form. Mark PHI nodes of nonlocal
        goto receivers.
        (tree_rest_of_compilation): Register hooks and initialize bitmap
        early. Do not set after_inlining flag.

2007-01-02  Steve Ellcey  <sje@cup.hp.com>

        * sbitmap.c (HOST_BITS_PER_LONG_LONG):  Change to
        HOST_BITS_PER_LONGLONG

2007-01-02  Manuel Lopez-Ibanez <manu@gcc.gnu.org>

        PR c/19977
        * c-typeck.c (store_init_value): Don't emit pedantic overflow
        warning for non-static initializers.

2007-01-02  Steven Bosscher  <steven@gcc.gnu.org>

        * config/alpha/alpha.md, arm/arm.c, darwin.c, frv/frv.md,
        m32r/m32r.c, m32r/m32r.c, mn10300/mn10300.md, pa/pa.c,
        rs6000/rs6000.c, s390/s390.md, sh/sh.md, sparc/sparc.c:
        Always use set_unique_reg_note to add REG_EQUAL notes.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        Revert:
        2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Ian Lance Taylor  <iant@google.com>

        * c-common.c (c_common_truthvalue_conversion): When warning about
        using an assignment as a truth value, set TREE_NO_WARNING.

2007-01-02  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/7651
        * c.opt (Wold-style-declaration): New.
        * doc/invoke.texi (C-only Warning Options): New.
        (Wold-style-declaration): Document it.
        (Wextra): Enabled by -Wextra.
        * c-opts.c (c_common_post_options): Enabled by -Wextra.
        * c-decl.c (declspecs_add_scspec): Replace -Wextra with
        -Wold-style-declaration.

2007-01-02  Kazu Hirata  <kazu@codesourcery.com>

        * alias.c (init_alias_analysis): Use VEC_safe_grow_cleared.
        * cfgbuild.c (find_basic_blocks): Likewise.
        * cfgrtl.c (rtl_create_basic_block): Likewise.
        * function.c (temp_slots_at_level): Likewise.
        * reg-stack.c (stack_regs_mentioned): Likewise.
        * regclass.c (allocate_reg_info): Likewise.
        * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb,
        set_bb_for_stmt, move_block_to_fn): Likewise.
        * tree-complex.c (tree_lower_complex): Likewise.
        * vec.h (VEC_safe_grow_cleared): New.

2007-01-02  Douglas Gregor  <doug.gregor@gmail.com>

        * c-common.c (c_common_nodes_and_builtins): Since variants of
        void_type_node get built before it is given a name, we need to
        give those variants the name, too.
        (complete_array_type): We need to work with the canonical main
        type of the array, from which we will build the qualified version.
        * params.def (PARAM_VERIFY_CANONICAL_TYPES): New.
        * print-tree.c (print_node): Display canonical type information
        for each type.
        * stor-layout.c (layout_type): When we don't know the
        alignment of a type for which we're building an array, we end up
        guessing wrong, so make the type require structural equality.
        * tree.c (make_node_stat): When we build a new type, it is its
        own canonical type.
        (build_type_attribute_qual_variant): When building an attribute
        variant, its canonical type is the non-attribute variant. However,
        if the attributes are target-dependent and they differ, we need to
        use structural equality checks for this type.
        (build_qualified_type): A qualified type is not equivalent to its
        unqualified variant; set the canonical type appropriately.
        (build_distinct_type_copy): When building a distinct type from
        another type, the new type is its own canonical type.
        (build_variant_type_copy): When building a new type variant, we
        assume that it is equivalent to the original type.
        (build_pointer_type_for_mode): When building a pointer type, also
        build a canonical type pointer.
        (build_reference_type_for_mode): When building a reference type,
        also build a canonical type reference.
        (build_index_type): When we can't hash an index type (e.g.,
        because its maximum value is negative), the index type requires
        structural equality tests.
        (build_array_type): Build the canonical form of an array type.
        (build_function_type): Function types require structural equality,
        because they contain default arguments, attributes, etc.
        (build_method_type_directly): Ditto for method types.
        (build_offset_type): Build the canonical offset type.
        (build_complex_type): Build the canonical vector type.
        (make_vector_type): Build the canonical vector type.
        * tree.h (TYPE_CANONICAL): New.
        (TYPE_STRUCTURAL_EQUALITY_P): New.
        (SET_TYPE_STRUCTURAL_EQUALITY): New.
        (struct tree_type): Added "canonical" field.
        * params.h (VERIFY_CANONICAL_TYPES): New.
        * doc/c-tree.texi (TYPE_CANONICAL): Document.
        (TYPE_STRUCTURAL_EQUALITY_P): Document.
        (SET_TYPE_STRUCTURAL_EQUALITY): Document.
        * doc/invoke.texi (verify-canonical-types): Document --param
        parameter for verifying canonical types.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (powerpc-*-eabispe*, powerpc-*-eabisimaltivec*,
        powerpc-*-eabisim*, powerpc-*-eabialtivec*, powerpc-*-eabi*,
        powerpc-*-rtems*, powerpc-wrs-vxworks, powerpc-wrs-vxworksae,
        powerpcle-*-eabisim*, powerpcle-*-eabi*): Add rs6000/e500.h to
        tm_file.
        * config/rs6000/e500.h: New.
        * config/rs6000/eabi.h (TARGET_SPE_ABI, TARGET_SPE, TARGET_E500,
        TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE, TARGET_E500_DOUBLE):
        Remove.
        * config/rs6000/linuxspe.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS, TARGET_E500_SINGLE,
        TARGET_E500_DOUBLE): Remove.
        * config/rs6000/vxworks.h (TARGET_SPE_ABI, TARGET_SPE,
        TARGET_E500, TARGET_ISEL, TARGET_FPRS): Remove.
        * config/rs6000/rs6000.h (CHECK_E500_OPTIONS): Define.
        * config/rs6000/rs6000.c (rs6000_override_options): Use
        CHECK_E500_OPTIONS.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/rs6000.c (print_operand): Check (TARGET_SPE ||
        TARGET_E500_DOUBLE), not TARGET_E500, for %y.
        (rs6000_generate_compare, rs6000_emit_sCOND, output_cbranch,
        rs6000_emit_cmove): Don't check TARGET_E500.
        * config/rs6000/rs6000.md (bunordered, bordered, sunordered,
        sordered): Don't check TARGET_E500.

2007-01-01  Eric Christopher  <echristo@apple.com>

        * config/mips/mips.c (mips_regno_mode_ok_for_base_p): Use
        HARD_REGISTER_NUM_P.

2007-01-01  Roger Sayle  <roger@eyesopen.com>

        * fold-const.c (fold_binary) <EQ_EXPR>: Fold "(X^C1) eq/ne C2" into
        "X eq/ne (C1^C2)".  Fold "(X^Z) eq/ne (Y^Z)" as "X eq/ne Y" when Z
        has no side-effects.  Fold "(X^C1) eq/ne (Y^C2)" as "(X^(C1^C2))
        eq/ne Y".

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac: Remove support for building with Apple's gcc-3.1.

2007-01-02  Joseph Myers  <joseph@codesourcery.com>

        PR middle-end/30311
        * caller-save.c (add_stored_regs): Only handle SUBREGs if inner
        REG is a hard register.  Do not modify REG before calling
        subreg_nregs.
        * rtlanal.c (subreg_get_info): Don't assert size of XMODE is a
        multiple of the size of YMODE for certain lowpart cases.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/30253
        * gimplify (voidify_wrapper_expr): Update for
        GIMPLE_MODIFY_STMT.

2007-01-01  Andreas Schwab  <schwab@suse.de>

        PR target/29166
        * config/ia64/ia64.c (ia64_compute_frame_size): Account space for
        save of BR0 in extra_spill_size instead of spill_size.
        (ia64_expand_prologue): Save BR0 outside of the gr/br/fr spill
        area.
        (ia64_expand_epilogue): Restore BR0 from its new location.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_init_constructor <case VECTOR_TYPE>):
        Use a temporary variable if the left hand side is not a gimple
        register.

2007-01-01  Andrew Pinski  <pinskia@gmail.com>

        * gimplify.c (gimplify_return_expr): Make the temporary variable
        for the return expression, a gimple register variable.

2007-01-01  Jan Hubicka  <jh@suse.cz>

        * emit-rtl.c (emit_copy_of_insn_after): Do not call copy_insn_1 for
        INSN_LIST.

2007-01-01  Mike Stump  <mrs@apple.com>

        * configure.ac (HAVE_GAS_LITERAL16): Add autoconf check for
        .literal16.
        * config/darwin.c (machopic_select_rtx_section): Use
        HAVE_GAS_LITERAL16.
        (darwin_mergeable_constant_section): Likewise.
        * configure: Regenerate.
        * config.in: Regenerate.

2007-01-01  Jan Hubicka  <jh@suse.cz>
            Andrew Pinski  <pinskia@gmail.com>

        * cgraphunit.c (cgraph_optimize): Call cgraph_add_new_functions
        before starting IPA passes.