* config/bfin/t-bfin, config/bfin/t-bfin-elf: GCC_CFLAGS.

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

2007-01-10  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config/bfin/t-bfin, config/bfin/t-bfin-elf: 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.