2008-08-22 Richard Guenther <rguenther@suse.de>

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

2008-08-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/37078
        * tree-vrp.c (extract_range_from_unary_expr): Avoid generating
        [+INF, +INF] ranges.

2008-08-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/37143
        * tree-vect-transform.c (vect_create_cond_for_align_checks): Build
        a conversion statement instead of a copy.

2008-08-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/37184
        * config/i386/i386.c (ix86_match_ccmode): Handle CCAmode,
        CCCmode, CCOmode and CCSmode destination modes.

        PR target/37191
        * config/i386/mmx.md (*vec_extractv2sf_0): Avoid combining registers
        from different units in a single alternative.
        (*vec_extractv2sf_1): Ditto.
        (*vec_extractv2si_0): Ditto.
        (*vec_extractv2si_1): Ditto.
        * config/i386/sse.md (sse2_storehpd): Ditto.
        (sse2_storelpd): Ditto.
        (sse2_loadhpd): Ditto.
        (sse2_loadlpd): Ditto.

        PR target/37197
        * config/i386/i386.md (clzsi2_abm): Fix operand 1 constraints.
        (popcountsi2): Ditto.
        (clzdi2_abm): Ditto.
        (popcountdi2): Ditto.
        (clzhi2_abm): Ditto.
        (popcounthi2): Ditto.

2008-08-22  Richard Guenther  <rguenther@suse.de>

        PR middle-end/36548
        PR middle-end/37125
        * fold-const.c (extract_muldiv_1): Optimize (X * C1) % C2 only
        if the multiplication does not overflow.

2008-08-21  Nathan Sidwell  <nathan@codesourcery.com>

        * c-ppoutput.c (init_pp_output): Initialize src_line to 1.

2008-08-21  Richard Henderson  <rth@redhat.com>

        * configure.ac (HAVE_GAS_CFI_PERSONALITY_DIRECTIVE): Remove
        spurrious comma from test.
        * configure: Rebuild.

2008-08-21  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 30457
        * builtins.c (fold_builtin_next_arg): Add warning about undefined
        behaviour.
        
2008-08-21  Aldy Hernandez  <aldyh@redhat.com>

        * c-tree.h (grokfield): New argument.
        * c-decl.c (grokfield): Handle new location argument.
        * c-parser.c (c_parser_struct_declaration): Pass location to
        grokfield.

2008-08-21  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (ccp_fold): Fold VIEW_CONVERT_EXPRs of constants.

2008-08-21  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (first_cgraph_function_insertion_hook): New variable.
        (cgraph_add_function_insertion_hook,
        cgraph_remove_function_insertion_hook,
        cgraph_call_function_insertion_hooks): New functions.
        * cgraph.h (cgraph_add_function_insertion_hook,
        cgraph_remove_function_insertion_hook,
        cgraph_call_function_insertion_hooks): Declare.
        * ipa-reference.c (function_insertion_hook_holder): New variable.
        (check_operand, look_for_address_of): When checking late, do not care
        about module bitmaps.
        (add_new_function): New function.
        (generate_summary): Register hooks; zero module bitmaps.
        (propagate): Unregister hooks.
        * ipa-pure-const.c (function_insertion_hook_holder): New variable.
        (add_new_function): New function.
        (generate_summary): Register hook.
        (propagate): Remove hook.

        * ipa-cp.c (ipcp_need_redirect_p): Fix to not be constant 0.

        * tree-pass.h (pass_ipa_cp): Make ipa_opt_pass.
        * ipa-cp.c (ipcp_update_cloned_node): New function.
        (build_const_val): Handle functions correctly; bring type logic
        into sync with tree-inline.c
        (ipcp_init_stage):  Take care of computing stuff needed by
        indirect inlining; update clones.
        (ipcp_generate_summary): Break out of ipcp_driver.
        (ipcp_driver): Do only execution and transformation.
        (pass_ipa_cp): Make IPA_PASS.
        * tree-ssa-ccp.c (fold_stmt_r): Check type before trying to fold
        offset to address.
        * ipa-inline.c (inline_indirect_intraprocedural_analysis): When doing
        ipcp, some info is already available.
        * ipa-prop.c (ipa_count_arguments): Grow edge lists as needed.
        * tree-inline.c (remap_ssa_name): Unshare expression.

2008-08-21  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (insert_into_preds_of_block): Before inserting
        a PHI ask VN if it is already available.
        * tree-ssa-sccvn.h (vn_phi_lookup): Declare.
        * tree-ssa-sccvn.c (vn_phi_lookup): Export.

2008-08-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/36817
        * tree-chrec.c (chrec_apply): Always call chrec_fold_plus which
        makes sure to produce a result of the correct type.

2008-08-21  Jan Hubicka  <jh@suse.cz>
        Backport from LTO branch:

        2008-05-05  Kenneth Zadeck <zadeck@naturalbridge.com>
                    Jan Hubicka  <jh@suse.cz>
        
        * ipa-pure-const.c
        (init_state, finish_state, set_function_state, generate_summary):
        New functions.
        (scan_stmt): Renamed from scan_function.  Changed to keep state in
        local static vars rather than cgraph aux field.
        (propagate): Renamed from static_execute. Changed to keep state in
        local static vars rather than cgraph aux field.
        (pass_ipa_pure_const): Changed from SIMPLE_IPA_PASS to IPA_PASS.
        * tree-pass.h (pass_ipa_pure_const): Turn into IPA_PASS.

        2008-07-15  Kenneth Zadeck <zadeck@naturalbridge.com>

        * tree-pass.h (pass_ipa_reference): Make into ipa_opt_pass.
        * ipa-reference.c (init_function_info, generate_summary, 
        propagate): New functions.
        (analyze_function):  Call init_function_info.
        (static_execute): Stripped into generate_summary and propagate.
        (pass_ipa_reference): Made into ipa_opt_pass.

2008-08-21  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/37181
        * tree-vrp.c (extract_range_from_binary_expr): Check for NULL
        folding result.
        (extract_range_from_unary_expr): Likewise.

2008-08-21  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * diagnostic.c (pedwarn_at): Rename as pedwarn.
        (pedwarn): Delete.
        * toplev.h (pedwarn_at): Likewise.
        * builtins.c: Update all calls to pedwarn.
        * c-lex.c: Likewise.
        * toplev.c: Likewise.
        * c-tree.h: Likewise.
        * c-decl.c: Likewise.
        * c-errors.c: Likewise.
        * c-typeck.c: Likewise.
        * c-common.c: Likewise.
        * c-parser.c: Likewise.

2008-08-20  Joseph Myers  <joseph@codesourcery.com>

        PR target/31070
        * config/sparc/sparc.c (function_arg_slotno): Handle structure
        with MODE_VECTOR_INT mode.

2008-08-21  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/179
        * tree-ssa.c (warn_uninit): Do not warn for variables that can be
        initialized outside the current module.
        (warn_uninitialized_var): Ignore left-hand side when walking the
        trees. Ignore address expressions. Examine VUSE operands in gimple
        statements with a variable declaration on the right-hand side.

2008-08-20  Richard Sandiford  <rdsandiford@googlemail.com>

        PR bootstrap/37155
        * rtlanal.c (subreg_offset_representable_p): Revert last change.

2008-08-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 35701
        * c-common.c (conversion_warning): Do not warn if applying bit-and
        operator to unsigned constant that fits in the target type.

2008-08-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c++/35602
        * c-common.c (conversion_warning): Do not warn for artificial
        expressions.

2008-08-20  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (op_with_constant_singleton_value_range): New function.
        (extract_range_from_binary_expr): Fall back to constant propagation.
        (extract_range_from_unary_expr): Likewise.

2008-08-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (maybe_fold_stmt_indirect): Do not mess
        with TREE_THIS_VOLATILE on shared nodes.
        (fold_stmt_r): Likewise.

2008-08-20  Jakub Jelinek  <jakub@redhat.com>

        PR c/37171
        * c-parser.c (c_parser_attributes): For keywords use canonical
        spelling for attr_name.

2008-08-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * value-prof.c (check_counter): Revert wrong call to error.
        
2008-08-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * profile.c: Update calls to inform.
        * value-prof.c: Update calls to inform.
        
2008-08-20  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * diagnostic.c (inform): Add an explicit location_t parameter.
        * toplev.h (inform): Update declaration.
        * builtins.c: Update all calls to inform.
        * c-common.c: Likewise.
        * c-decl.c: Likewise.
        * c-opts.c: Likewise.
        * c-pch.c: Likewise.
        * c-pragma.c: Likewise.
        * c-typeck.c: Likewise.
        * coverage.c: Likewise.
        * opts.c: Likewise.
        * toplev.c: Likewise.
        * tree-cfg.c: Likewise.
        * tree-ssa.c: Likewise.

2008-08-20  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/37169
        * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): In
        V2DI mode, for SSE4.1, use movq instead of vector set if the
        second element is zero and inter-unit moves are OK.

2008-08-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): More
        properly handle conversion/copy chains after tuplification.

2008-08-20  Richard Guenther  <rguenther@suse.de>

        * passes.c (init_optimization_passes): Move the second
        forwprop pass before alias computation.  Remove the second
        DCE pass.  Remove the first dominator and phi copy/const
        prop passes.

2008-08-20  Nick Clifton  <nickc@redhat.com>

        * configure.ac (HAVE_GAS_CFI_DIRECTIVE): Always test for assembler
        support of this feature.  Do not assume that a sufficiently new
        assembler will support the feature regardless of the target type.
        (HAVE_GAS_CFI_PERSONALITY_DIRECTIVE): Likewise.
        * configure: Regenerate.

2008-08-20  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (found_in_subgraph): Remove.
        (live): New global static.
        (live_on_edge): New function.
        (blocks_visited): Remove.
        (register_edge_assert_for_2): Use live_on_edge.
        (find_conditional_asserts): Remove code dealing with
        found_in_subgraph.  Do not walk the CFG.
        (find_switch_asserts): Likewise.
        (find_assert_locations_1): Renamed from find_assert_locations.
        Move finding assert locations for conditional and switch
        statements first.  Update live bitmap.  Do not walk the CFG.
        (find_assert_locations): New function.
        (insert_range_assertions): Remove entry of CFG walk.
        Adjust call to find_assert_locations.
        * tree-ssa-pre.c (do_regular_insertion): Ignore critical edges
        that only can appear because of fake exit edges but assert we
        never try to insert on those.
        (fini_pre): Do not remove fake exit edges here...
        (execute_pre): ...but here, before committing edge inserts.

2008-08-19  Richard Guenther  <rguenther@suse.de>

        * passes.c (init_optimization_passes): Exchange store-ccp
        with a ccp pass.

2008-08-19  Rafael Espindola  <espindola@google.com>

        * varasm.c (weak_decls): Move earlier in the file.
        (assemble_external): Add weak decls to the weak_decls list.
        (declare_weak): Don't add decls to the weak_decls list.

2008-08-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/37157
        * config/i386/sse.md (sse2_punpckhqdq, sse2_punpcklqdq): Moved
        before (sse2_shufpd_<mode>).

2008-08-19  Jakub Jelinek  <jakub@redhat.com>

        PR debug/37156
        * pretty-print.c (pp_base_format): Deal with recursive BLOCK trees.
        * tree.c (block_nonartificial_location): Likewise.

2008-08-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35972
        PR tree-optimization/23094
        * tree-ssa-sccvn.h (vn_reference_lookup_pieces): Add maywalk
        parameter.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Properly
        handle MISALIGNED_INDIRECT_REF.
        (get_ref_from_reference_ops): New helper.
        (vn_reference_lookup_pieces): Walk the use-def chain using the
        alias-oracle if requested.
        * tree-ssa-pre.c (phi_translate_1): Do reference lookup with
        walking the use-def chain.
        (compute_avail): But not here.
        (create_component_ref_by_pieces_1): Properly handle
        MISALIGNED_INDIRECT_REF.
        (do_regular_insertion): Handle fully redundant
        expressions after PHI-translation also for SSA_NAME values, not
        only constants.  Correctly use edoubleprime for that.

2008-08-19  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c (supportable_widening_operation): Support
        multi-step conversion, return the number of steps in such conversion
        and the required intermediate types.
        (supportable_narrowing_operation): Likewise.
        * tree-vectorizer.h (vect_pow2): New function.
        (supportable_widening_operation): Change argument types.
        (supportable_narrowing_operation): Likewise.
        (vectorizable_type_promotion): Add an argument.
        (vectorizable_type_demotion): Likewise.
        * tree-vect-analyze.c (vect_analyze_operations): Call 
        vectorizable_type_promotion and vectorizable_type_demotion with
        additional argument.
        (vect_get_and_check_slp_defs): Detect patterns.
        (vect_build_slp_tree): Add an argument, don't fail in case of multiple
        types. 
        (vect_analyze_slp_instance): Don't fail in case of multiple types. Call
        vect_build_slp_tree with correct arguments. Calculate unrolling factor
        according to the smallest type in the loop.
        (vect_detect_hybrid_slp_stmts): Include statements from patterns.
        * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Call 
        supportable_widening_operation with correct arguments. 
        * tree-vect-transform.c (vect_get_slp_defs): Allocate output vector 
        operands lists according to the number of vector statements in left
        or right node, if exists.
        (vect_gen_widened_results_half): Remove unused argument.
        (vectorizable_conversion): Call supportable_widening_operation, 
        supportable_narrowing_operation, and vect_gen_widened_results_half
        with correct arguments. 
        (vectorizable_assignment): Change documentation, support multiple
        types in SLP. 
        (vectorizable_operation): Likewise.
        (vect_get_loop_based_defs): New function.
        (vect_create_vectorized_demotion_stmts): Likewise.
        (vectorizable_type_demotion): Support loop-aware SLP and general
        multi-step conversion. Call vect_get_loop_based_defs and
        vect_create_vectorized_demotion_stmts for transformation.
        (vect_create_vectorized_promotion_stmts): New function.
        (vectorizable_type_promotion): Support loop-aware SLP and general
        multi-step conversion. Call vect_create_vectorized_promotion_stmts
        for transformation.     
        (vectorizable_store): Change documentation, support multiple
        types in SLP. 
        (vectorizable_load): Likewise.
        (vect_transform_stmt): Pass SLP_NODE to 
        vectorizable_type_promotion and vectorizable_type_demotion.
        (vect_schedule_slp_instance): Move here the calculation of number
        of vectorized statements for each node from...
        (vect_schedule_slp): ... here.
        (vect_transform_loop): Call vect_schedule_slp without the last
        argument.

2008-08-19  Dorit Nuzman  <dorit@il.ibm.com>

        PR bootstrap/37152
        * tree-vect-transform.c (vect_create_epilog_for_reduction): Change = 
        to == in assert statement.
        (vectorizable_reduction): Fix typo.

2008-08-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/37153
        * value-prof.c (check_counter): Dereference pointer to overall
        count when printing it.

2008-08-18  H.J. Lu  <hongjiu.lu@intel.com>

        * profile.h: Really add it.

2008-08-18  H.J. Lu  <hongjiu.lu@intel.com>

        * mcf.c: Really add it.

2008-08-18  Paul Yuan  <yingbo.com@gmail.com>
            Vinodha Ramasamy  <vinodha@google.com>

        * cgraph.c (cgraph_edge): Handle inconsistent counts when setting
        count_scale.
        * value-prof.c (check_counter): Fix the counter if
        flag_profile_correction is true.
        (tree_divmod_fixed_value_transform, tree_mod_pow2_value_transform,
        tree_mod_subtract_transform):
        Follow check_counter parameter change.
        * common.opt (fprofile-correction): New option.
        * mcf.c: New file.
        * profile.h: Likewise.
        * profile.c (edge_info, EDGE_INFO): Moved to new file profile.h.
        (sum_edge_counts, is_edge_inconsistent, correct_negative_edge_counts,
        is_inconsistent, set_bb_counts, read_profile_edge_counts): New
        functions.
        (compute_branch_probabilities): Refactored. Invokes mcf_smooth_cfg if
        flag_profile_correction is set.

2008-08-18  Richard Sandiford  <rdsandiford@googlemail.com>

        * rtlanal.c (subreg_offset_representable_p): Check HARD_REGNO_MODE_OK.

2008-08-18  Tomas Bily  <tbily@suse.cz>

        * tree.h (IS_CONVERT_EXPR_CODE_P): Renamed to CONVERT_EXPR_CODE_P.
        * tree-ssa-threadedge.c (simplify_control_stmt_condition): Use
        CONVERT_EXPR_P.
        * tree-data-ref.c (split_constant_offset_1): Likewise.
        * tree-inline.c (estimate_operator_cost): Use CASE_CONVERT.
        * tree-sra.c (sra_walk_expr): Likewise.
        * matrix-reorg.c (ssa_accessed_in_assign_rhs): Likewise.
        * tree-ssa-loop-niter.c (expand_simple_operations): Likewise.
        * gimple.h (gimple_assign_cast_p): Use CONVERT_EXPR_CODE_P.
        * tree-ssa-structalias.c (find_func_aliases, find_func_aliases):
        Likewise.
        * gimple.c (gimple_assign_unary_nop_p): Likewise.
        * tree-vect-transform.c (vectorizable_type_demotion)
        (vectorizable_type_promotion): Likewise.
        * tree-inline.c (expand_call_inline): 
        * tree-ssa-forwprop.c (get_prop_source_stmt, can_propagate_from)
        (forward_propagate_addr_expr_1, forward_propagate_comparison)
        (tree_ssa_forward_propagate_single_use_vars): Likewise.
        * expr.c (expand_expr_real_1): Likewise.
        * tree-ssa-dom.c (hashable_expr_equal_p, iterative_hash_hashable_expr)
        (gimple_assign_unary_useless_conversion_p): Likewise.
        * tree-stdarg.c (execute_optimize_stdarg): Likewise.
        * tree-ssa-ccp.c (ccp_fold, fold_gimple_assign): Likewise.
        * fold-const.c (fold_unary): Likewise.
        * tree.h (CONVERT_EXPR_P): Likewise.
        * tree.c (simple_cst_equal, iterative_hash_expr): Likewise.
        * tree-ssa-loop-im.c (rewrite_bittest): Likewise.
        * tree-vrp.c: 
        (register_edge_assert_for_2, extract_range_from_unary_expr)
        (register_edge_assert_for_1): Likewise.
        
2008-08-18  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * real.h (dconst_e, dconst_third, dconst_sqrt2, dconst_e_ptr,
        dconst_third_ptr, dconst_sqrt2_ptr): Declare.
        (enum real_value_const): Delete.
        (get_real_const): Delete.
        * real.c (get_real_const): Delete.
        (dconst_e_ptr): Define.
        (dconst_third_ptr): Define.
        (dconst_sqrt2_ptr): Define.
        * builtins.c: Update all callers.

2008-08-18  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-reassoc.c (reassociate_bb): Properly reset the
        statement iterator after statement removal.

2008-08-18  Andreas Tobler  <a.tobler@schweiz.org>

        * config/rs6000/driver-rs6000.c (detect_caches_freebsd): New function.
        (detect_processor_freebsd): Likewise.
        (host_detect_local_cpu): Call newly added functions for FreeBSD.

2008-08-18  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (verify_types_in_gimple_assign): Verify copies
        and loads have the correct types.

2008-08-18  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR cpp/7263
        * c-opts.c (cpp_opts): Remove static.
        * c-parser.c (cpp_opts): Declare it extern.
        (disable_extension_diagnostics): Handle cpp options.
        (enable_extension_diagnostics): Likewise.

2008-08-18  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * diagnostics.c (permerror_at): Rename as permerror.
        (permerror): Delete.
        * toplev.h: Likewise.

2008-08-18  Richard Guenther  <rguenther@suse.de>

        * passes.c (init_optimization_passes): Remove cleanup_cfg1,
        sdse1 and addressables2 passes.  Replace dce1 with cddce1.
        Move call_cdce before build_alias.  Move copyrename2,
        cunrolli and ccp2 beafore build_alias.  Re-add addressable2
        right after final inlining.
        * tree-cfg.c (build_gimple_cfg): Do not dump function here.
        (pass_build_cfg): But instead via TODO_dump_func.

2008-08-18  Richard Guenther  <rguenther@suse.de>

        * tree-sra.c (generate_element_init_1): Deal with NULL constructor
        element index.
        (scalarize_init): If we failed to generate some initializers
        do not generate zeros for not instantiated members.  Instead
        rely on the copy out.
        * tree-ssa-operands.c (get_addr_dereference_operands): Warn
        about missing flow-sensitive alias info only if we have
        aliases computed.

2008-08-17  Nick Clifton  <nickc@redhat.com>

        * doc/extend.texi (Function Attributes): Fix typo in description
        if hot function attribute.

2008-08-17  Daniel Jacobowitz  <dan@codesourcery.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        * doc/install.texi (--with-mips-plt): Document.
        * doc/invoke.texi (-mplt, -mno-plt): Document.
        * config.gcc (mips*-*-*): Add mips-plt to supported_defaults
        and handle ${with_mips_plt}.
        * config/mips/mips.opt (mplt): New option.
        * config/mips/mips.h (TARGET_ABICALLS_PIC0): New macro.
        (TARGET_ABICALLS_PIC2): Likewise.
        (TARGET_GPWORD): Return false for TARGET_ABSOLUTE_ABICALLS.
        (OPTION_DEFAULT_SPECS): Add a mips-plt entry.
        (ASM_SPEC): Use !mabi=* instead of !mabi*.
        (MIPS_CALL): Use TARGET_ABICALLS_PIC2 instead of TARGET_ABICALLS
        to decide whether to output ".option picX" directives.
        * config/mips/linux.h (SUBTARGET_ASM_SPEC): Remove -mabi=64 handling.
        Pass -call_nonpic rather than -KPIC for -mplt.
        (BASE_DRIVER_SELF_SPECS): Remove -mplt if -mno-shared is not present
        on the command line.  Also remove it when -mabi=64 is used without
        -msym32.
        * config/mips/linux64.h (SUBTARGET_ASM_SPEC): Delete.
        * config/mips/mips.c (mips_use_pic_fn_addr_reg_p): Handle
        TARGET_ABICALLS_PIC0.
        (mips_classify_symbol): Use TARGET_ABICALLS_PIC2 instead of
        TARGET_ABICALLS.
        (mips16_build_function_stub): Only output ".option pic" directives
        and PIC stubs if TARGET_ABICALLS_PIC2.  Call through $25 instead of $1.
        (mips16_build_call_stub): Fix comment and remove redundant
        ".set at"/"set .noat" directives.
        (mips_function_rodata_section): Use the default behaviour for
        TARGET_ABSOLUTE_ABICALLS.
        (mips_file_start): Emit ".option pic0" for TARGET_ABICALLS_PIC0.
        (mips_global_pointer): Handle TARGET_ABICALLS_PIC0.
        (mips_restore_gp): Do nothing if the current function doesn't use
        a global pointer.
        (mips_expand_prologue): Only save $gp if the current function uses it.
        Use a normal move for TARGET_ABICALLS_PIC0.
        (mips_override_options): Only set flag_pic if TARGET_ABICALLS_PIC2.

2008-08-17  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_save_reg_p): Don't short-circuit rest
        of function when handling GLOBAL_POINTER_REGNUM.

2008-08-16  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/20548
        * common.opt (-fstack-check): Do not declare the variable here.
        (-fstack-check=): New option variant.
        * doc/invoke.texi (Code Gen Options): Document it.
        * expr.h (STACK_OLD_CHECK_PROTECT): New macro.
        (STACK_CHECK_PROTECT): Bump to 3 pages if DWARF-2 EH is used.
        (STACK_CHECK_STATIC_BUILTIN): New macro.
        * doc/tm.texi (Stack Checking): Document STACK_CHECK_STATIC_BUILTIN.
        * opts.c: Include expr.h.
        (common_handle_option) <OPT_fold_stack_check_>: New case.
        <OPT_fstack_check>: Likewise.
        * calls.c (initialize_argument_information): Use TYPE_SIZE_UNIT
        consistently in the test for variable-sized types.  Adjust for
        new behaviour of flag_stack_check.
        * explow.c: Include except.h.
        (allocate_dynamic_stack_space): Do not take into account
        STACK_CHECK_MAX_FRAME_SIZE for static builtin stack checking.
        * function.c (gimplify_parameters): Use DECL_SIZE_UNIT in the test
        for variable-sized parameters.  Treat all parameters whose size is
        greater than STACK_CHECK_MAX_VAR_SIZE as variable-sized if generic
        stack checking is enabled.
        * gimplify.c (gimplify_decl_expr): Treat non-static objects whose
        size is greater than STACK_CHECK_MAX_VAR_SIZE as variable-sized
        if generic stack checking is enabled.
        (expand_function_end): Adjust for new behaviour of flag_stack_check.
        * reload1.c (reload): Likewise.
        * stmt.c (expand_decl): Assert that all automatic variables have
        fixed size at this point and remove dead code.
        * flags.h (stack_check_type): New enumeration type.
        (flag_stack_check): Declare.
        * toplev.c (flag_stack_check): New global variable.
        * Makefile.in (opts.o): Add dependency on EXPR_H.
        (explow.o): Add dependency on except.h.

2008-08-16  Andy Hutchinson  <hutchinsonandy@aim.com>

        * config/avr/avr.c (avr_override_options): Reduce value of 
        PARAM_INLINE_CALL_COST.

2008-08-15  Eric Botcazou  <ebotcazou@adacore.com>

        * expr.c (expand_expr_real_1) <VIEW_CONVERT_EXPR>: When converting
        to BLKmode, try to fetch an inner memory reference.  Use 'mode' in
        lieu of TYPE_MODE (type) throughout.

2008-08-15  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/arm.c (add_minipool_backward_ref): Check for
        8-byte-aligned entries in second case of forcing insertion after a
        particular entry.  Change third case to avoid inserting
        non-8-byte-aligned entries before 8-byte-aligned ones.

2008-08-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (maybe_fold_offset_to_reference): Do not
        strip components for unknown size accesses.

2008-08-15  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/2097.md New file.
        * config/s390/s390.md ("z10prop" attribute): Define none,
        z10_super, z10_super_E1, z10_super_A1, z10_super_c,
        z10_super_c_E1, z10_fwd, z10_fwd_A1, z10_fwd_A3, z10_fwd_E1,
        z10_rec, z10_fr, z10_fr_A3, z10_fr_E1, z10_c, and z10_cobra as
        possible values and apply them to insns as appropriate.
        ("type" attribute): Removed itof and added ftrunctf,ftruncdf,
        ftruncsd, ftruncdd, itoftf, itofdf, itofsf, itofdd, itoftd,
        fdivdd, fdivtd, floaddd, floadsd, fmuldd, fmultd, fsimpdd,
        fsimpsd, fsimptd, fstoredd, fstoresd, ftoidfp as possible
        values.
        ("bfp" mode attribute): Removed.  Every occurence replaced
        with <mode>.
        * config/s390/s390.c (struct "z10_cost"): Updated entries.
        * config/s390/2084.md (insn_reservation "x_itof"): Updated
          type attribute.

2008-08-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/28152
        * c-parser.c (c_lex_one_token): Do not store the canonical spelling
        for keywords.
        
2008-08-14  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-transform.c (vect_create_epilog_for_reduction): Takes an
        additional argument. Support reduction when duplication is needed due
        to data-types of different sizes in the loop.
        (get_initial_def_for_induction): Fix printout.
        (vect_get_vec_def_for_stmt_copy): Support case where the
        vec_stmt_for_operand is a phi node.
        (vectorizable_reduction): Support reduction when duplication is needed 
        due to data-types of different sizes in the loop.
        (vectorizable_call): Remove restriction to not vectorize in case we 
        have data-types of different sizes in the loop.
        (vectorizable_conversion): Likewise.
        (vectorizable_operation): Likewise.
        (vectorizable_type_demotion): Likewise.
        (vectorizable_type_promotion): Likewise.
        (vectorizable_induction): Add restriction to not vectorize in case 
        we have data-types of different sizes in the loop.

2008-08-14  Christophe Saout  <christophe@saout.de>
            Uros Bizjak  <ubizjak@gmail.com>

        PR target/37101
        * config/i386/sse.md (vec_concatv2di): Remove movlps alternative.
        (*vec_concatv2di_rex64_sse4_1): Ditto.
        (*vec_concatv2di_rex64_sse): Ditto.

2008-08-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/37103
        * fold-const.c (fold_widened_comparison): Do not allow
        sign changes that change the result even if shorter type
        is wider than arg1_unw's type.

2008-08-13  Kazu Hirata  <kazu@codesourcery.com>

        * gcc.dg/arm-g2.c, gcc.dg/arm-mmx-1.c, gcc.dg/arm-scd42-2.c:
        Skip if the multilib testing specifies -march that does not
        agree with the one specified in the testcase.

2008-08-13  Joseph Myers  <joseph@codesourcery.com>

        * config/sparc/sparc.c (emit_soft_tfmode_cvt): Explicitly sign or
        zero extend SImode values being converted to TFmode before passing
        to libcalls.

2008-08-13  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Predefine
        __PPU__ when targeting the Cell/B.E. PPU processor.

2008-08-13  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple.h (gimple_call_set_chain): Accept SSA variables.
        * tree-ssa-pre.c (create_component_ref_by_pieces_1) <CALL_EXPR>:
        Rematerialize the static chain, if any.
        * tree-ssa-sccvn.c (copy_reference_ops_from_call): Also copy the
        static chain.

2008-08-13  H.J. Lu  <hongjiu.lu@intel.com>

        * dwarf2out.c (dwarf_stack_op_name): Remove prototype.
        (new_loc_descr): Likewise.
        (add_loc_descr): Likewise.
        (size_of_loc_descr): Likewise.
        (size_of_locs): Likewise.
        (output_loc_operands): Likewise.
        (output_loc_sequence): Likewise.
        (new_reg_loc_descr): New.
        (build_cfa_loc): Use it.
        (build_cfa_aligned_loc): Likewise.
        (one_reg_loc_descriptor): Likewise.
        (based_loc_descr): Likewise.

2008-08-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 30551
        * doc/invoke.texi (Wmain): Update.
        * c-decl.c (start_decl): warn_main is only 0 or 1.
        (start_function): Likewise. Fix formatting.
        (finish_function): Delete redundant warning.
        * c.opt (Wmain): Add Var(warn_main) and Init(-1).
        * c-opts (c_common_handle_option): -Wall only has effect if
        warn_main is uninitialized. OPT_Wmain is automatically
        handled. -pedantic also enables Wmain.
        (c_common_post_options): Handle all logic for Wmain here.
        * c-common.c (warn_main): Delete.
        (check_main_parameter_types): Make pedwarns conditional on
        OPT_Wmain.
        * c-common.h (warn_main): Delete.

2008-08-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/36701
        * expr.c (emit_group_store): Allocate stack temp with the
        largest alignment when copying from register to stack.

2008-08-13  Richard Guenther  <rguenther@suse.de>

        * tree.h (maybe_fold_offset_to_address): Declare.
        * tree-ssa-ccp.c (surely_varying_stmt_p): Fix typo in last commit.
        (ccp_fold): Handle pointer conversions the same as fold_stmt.
        Likewise for POINTER_PLUS_EXPR.
        (maybe_fold_offset_to_reference): Enable disabled code.
        (maybe_fold_offset_to_address): New function.
        (fold_stmt_r): Use it.
        (fold_gimple_assign): Likewise.
        * gimplify.c (gimplify_conversion): Use maybe_fold_offset_to_address.
        (gimplify_expr): Likewise.

2008-08-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        * toplev.h (pedwarn_at): Fix declaration.
        
2008-08-13  Joseph Myers  <joseph@codesourcery.com>

        * config/sparc/linux64.h (LINK_ARCH32_SPEC, LINK_ARCH64_SPEC,
        LINK_SPEC): Use %R in -Y P argument.

2008-08-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/15236
        * diagnostic.c (pedwarn_at): New.
        * toplev.h (pedwarn_at): Declare.
        * c-tree.h (build_enumerator): Update declaration.
        * c-decl.c (finish_enum): Update comment.
        (build_enumerator): Take a location parameter. Give a pedwarn but do
        not perform any conversion.
        * c-parser.c (c_parser_enum_specifier): Set correct location for
        enumerator.

2008-08-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 35635
        * c-common.c (conversion_warning): Use a switch. Ignore boolean
        expressions except for conversions to signed:1 bitfields. Handle
        COND_EXPR with constant operands.
        
2008-08-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/15255
        * tree-ssa-reassoc.c (linearize_expr_tree): Declare.
        (struct oecount_s): New struct and VEC types.
        (cvec): New global.
        (oecount_hash): New function.
        (oecount_eq): Likewise.
        (oecount_cmp): Likewise.
        (zero_one_operation): New function.
        (build_and_add_sum): Likewise.
        (undistribute_ops_list): Perform un-distribution of multiplication
        and division on the chain of summands.
        (should_break_up_subtract): Also break up subtracts for factors.
        (reassociate_bb): Delete dead visited statements.
        Call undistribute_ops_list.  Re-sort and optimize if it did something.
        * passes.c (init_optimization_passes): Move DSE before
        reassociation.
        * tree-ssa-loop-niter.c (stmt_dominates_stmt_p): Correctly handle
        PHI nodes.

2008-08-12  Janis Johnson  <janis187@us.ibm.com>

        * doc/invoke.texi (-fipa-pta): Say the option is experimental.

        * doc/invoke.texi: Revert unintended checkin.

2008-08-12  Nathan Froyd  <froydnj@codesourcery.com>

        PR libgomp/26165
        * gcc.c (include_spec_function): Tweak call to find_a_file.

2008-08-12  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/37014
        * expr.c (expand_expr_real_1): Handle TRUTH_ANDIF_EXPR
        and TRUTH_ORIF_EXPR.
        * dojump.c (do_jump): Likewise.

        PR tree-optimization/37084
        * tree-inline.c (copy_bb): Call gimple_regimplify_operands
        if id->regimplify, don't assume stmt is a cast assignment.

2008-08-12  Anatoly Sokolov  <aesok@post.ru>

        * final.c (final_scan_insn): Use app_enable/app_disable functions.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        PR bootstrap/37097
        * builtins.c (do_mpfr_bessel_n): Fix copy-and-paste bug introduced
        by last change.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * defaults.h (TARGET_FLOAT_FORMAT): Remove.
        (UNKNOWN_FLOAT_FORMAT, IEEE_FLOAT_FORMAT, VAX_FLOAT_FORMAT): Remove.

        * config/alpha/alpha.h (TARGET_FLOAT_FORMAT): Remove.
        * config/iq2000/iq2000.h (TARGET_FLOAT_FORMAT): Remove.
        * config/pdp11/pdp11.h (TARGET_FLOAT_FORMAT): Remove.
        * config/score/score.h (TARGET_FLOAT_FORMAT): Remove.
        * config/vax/vax.h (TARGET_FLOAT_FORMAT): Remove.

        * doc/tm.texi (Storage Layout): Remove documentation for
        TARGET_FLOAT_FORMAT.

        * simplify-rtx.c (simplify_binary_operation_1): Replace
        TARGET_FLOAT_FORMAT check by appropriate HONOR_... checks.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * real.h (struct real_format): New member has_sign_dependent_rounding.
        * real.c (ieee_single_format, mips_single_format, motorola_single_format,
        spu_single_format, ieee_double_format, mips_double_format,
        motorola_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): Initialize it.
        * config/pdp11/pdp11.c (pdp11_f_format, pdp11_d_format): Likewise.

        * defaults.h (MODE_HAS_NANS, MODE_HAS_INFINITIES,
        MODE_HAS_SIGNED_ZEROS, MODE_HAS_SIGN_DEPENDENT_ROUNDING): Remove.
        * config/spu/spu.h (MODE_HAS_NANS, MODE_HAS_INFINITIES,
        MODE_HAS_SIGN_DEPENDENT_ROUNDING): Remove.
        (ROUND_TOWARDS_ZERO): Likewise.

        * real.h (REAL_MODE_FORMAT): Protect MODE against macro expansion.
        (FLOAT_MODE_FORMAT): New macro.
        (REAL_MODE_FORMAT_COMPOSITE_P): Remove, replace by ...
        (MODE_COMPOSITE_P): ... this new macro.
        (MODE_HAS_NANS, MODE_HAS_INFINITIES, MODE_HAS_SIGNED_ZEROS,
        MODE_HAS_SIGN_DEPENDENT_ROUNDING): New macros.
        * machmode.h (GET_MODE_INNER): Cast result to enum machine_mode.

        * flags.h: Include "real.h".

        * fold-const.c (const_binop): Use MODE_COMPOSITE_P instead of
        REAL_MODE_FORMAT_COMPOSITE_P.
        * simplify-rtx.c (simplify_const_binary_operation): Likewise.

        * doc/tm.texi (Storage Layout): Remove documentation of
        MODE_HAS_NANS, MODE_HAS_INFINITIES, MODE_HAS_SIGNED_ZEROS,
        MODE_HAS_SIGN_DEPENDENT_ROUNDING.  Update documentation of
        ROUND_TOWARDS_ZERO and LARGEST_EXPONENT_IS_NORMAL to clarify
        they only apply to libgcc2.a.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/float_disf.c: New file.
        * config/spu/float_unsdisf.c: New file.
        * config/spu/t-elf (LIB2FUNCS_STATIC_EXTRA): Add them.
        (LIB2FUNCS_EXCLUDE): Define.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
            Trevor Smigiel  <trevor_smigiel@playstation.sony.com>

        * real.h (struct real_format): New member round_towards_zero.
        * real.c (round_for_format): Respect fmt->round_towards_zero.
        (ieee_single_format, mips_single_format, motorola_single_format,
        spu_single_format, ieee_double_format, mips_double_format,
        motorola_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): Initialize it.
        * config/pdp11/pdp11.c (pdp11_f_format, pdp11_d_format): Likewise.

        * builtins.s (do_mpfr_arg1): Consider round_towards_zero member of
        real_format to choose rounding mode when calling MPFR functions.
        (do_mpfr_arg2, do_mpfr_arg3, do_mpfr_sincos): Likewise.
        (do_mpfr_bessel_n, do_mpfr_remquo, do_mpfr_lgamma_r): Likewise.

        * real.h (real_to_decimal_for_mode): Add prototype.
        * real.c (real_to_decimal_for_mode): Renames old real_to_decimal.
        Respect target rounding mode when generating decimal representation.
        (real_to_decimal): New stub for backwards compatibility.
        * c-cppbuiltin.c (builtin_define_with_hex_fp_value): Use
        real_to_decimal_for_mode instead of real_to_decimal.

        * config/spu/spu.md ("floatdisf2", "floatunsdisf2"): New.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
            Trevor Smigiel  <trevor_smigiel@playstation.sony.com>

        * real.c (spu_single_format): New variable.
        * real.h (spu_single_format): Declare.

        * config/spu/spu.c (spu_override_options): Install SFmode format.
        (spu_split_immediate): Use integer mode to operate on pieces of
        floating-point values in all cases.

        * config/spu/spu.md (UNSPEC_FLOAT_EXTEND, UNSPEC_FLOAT_TRUNCATE): New.
        ("extendsfdf2"): Use UNSPEC_FLOAT_EXTEND instead of FLOAT_EXTEND.
        ("truncdfsf2"): Use UNSPEC_FLOAT_TRUNCATE instead of FLOAT_TRUNCATE.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.c (spu_safe_dma): Respect TARGET_SAFE_DMA.

2008-08-12  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.h (DWARF_FRAME_RETURN_COLUMN): Define.

2008-08-12  Jakub Jelinek  <jakub@redhat.com>

        PR c++/36688
        * gimplify.c (gimplify_modify_expr_rhs): Test TREE_READONLY
        on the VAR_DECL instead of TYPE_READONLY on its type.

2008-08-12  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.c: Depend on langhooks.h.
        (supportable_widening_operation): Add two arguments. Support double
        type conversions.
        (supportable_narrowing_operation): Likewise.
        * tree-vectorizer.h (supportable_widening_operation): Add two 
        arguments.
        (supportable_narrowing_operation): Likewise.
        * tree-vect-patterns.c (vect_recog_widen_mult_pattern) : Call
        supportable_widening_operation with correct arguments.
        * tree-vect-transform.c (vectorizable_conversion): Likewise.
        (vectorizable_type_demotion): Support double type conversions.
        (vectorizable_type_promotion): Likewise.
        * Makefile.in (tree-vectorizer.o): Depend on langhooks.h.

2008-08-11  Michael Matz  <matz@suse.de>

        * i386/i386.c (override_options): Move initialisation from
        flag_schedule_insns_after_reload to here from ...
        (optimization_options): ... here.

2008-08-11  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/36998
        * dwarf2out.c (compute_barrier_args_size_1,
        compute_barrier_args_size): Temporarily remove assertions.

2008-08-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/20644
        * tree-ssa.c (struct walk_data): Add new flag
        warn_possibly_uninitialized.
        (warn_uninitialized_var): Use it.
        (warn_uninitialized_vars): New.
        (execute_early_warn_uninitialized): Call it.
        (execute_late_warn_uninitialized): Likewise.

2008-08-09  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/36238
        * reload1.c (gen_reload): Guard calls to get_secondary_mem
        for memory subregs.

2008-08-09  Jan Hubicka  <jh@suse.cz>

        PR target/37055
        * optabs.c (maybe_emit_unop_insn): Remove produced code if
        expansion failed.
        (expand_fix): Be prepared for expansion to fail.
        (expand_sfix_optab): Remove instructions if expansion failed.

2008-08-09  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.c (avr_mcu_types): Move the AT43USB320 device to
        avr31 architecture.
        * config/avr/avr.h (CRT_BINUTILS_SPECS): (Ditto.).
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2008-08-09  Richard Sandiford  <rdsandiford@googlemail.com>

        * config.gcc (mips*-*-linux*, mips64*-*-linux*): Add
        mips/t-libgcc-mips16 to tmake_file.
        * config/mips/mips-protos.h (mips_call_type): New enum.
        (mips_pic_base_register, mips_got_load): Declare.
        (mips_restore_gp): Take an rtx argument.
        (mips_use_pic_fn_addr_reg_p): Declare.
        (mips_expand_call): Replace the sibcall_p argument with
        a mips_call_type argument.  Add a lazy_p parameter.
        (mips_split_call): Declare.
        * config/mips/mips.h (MIPS16_PIC_TEMP_REGNUM): New macro.
        (MIPS16_PIC_TEMP): Likewise.
        (reg_class): Delete M16_NA_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update accordingly.
        (SYMBOL_FLAG_BIND_NOW, SYMBOL_REF_BIND_NOW_P): New macros.
        (mips_split_hi_p): Declare.
        * config/mips/mips.c (mips_split_hi_p): New array.
        (mips_regno_to_class): Change M16_NA_REGS entries to M16_REGS.
        (mips_got_symbol_type_p): New function.
        (mips_global_symbol_p): Check SYMBOL_REF_EXTERNAL_P.
        (mips16_stub_function_p): New function.
        (mips16_local_function_p): Likewise.
        (mips_use_pic_fn_addr_reg_p): Likewise.
        (mips_cannot_force_const_mem): Return false for HIGHs.
        Extend CONST_INT and symbolic handling to MIPS16, using
        mips_symbol_insns to check that the base symbol type is a
        legitimate constant.  Reject GOT-based constants if
        TARGET_MIPS16_PCREL_LOADS.
        (mips_const_insns): Check targetm.cannot_force_const_mem when
        decomposing a symbolic base and a large offset.
        (mips_emit_call_insn): Add ORIG_ADDR and ADDR parameters.
        When calling a function that needs $25 from MIPS16 code,
        move the target address into $25 separately and add a USE
        to the call insn.
        (mips16_gp_pseudo_reg): Insert the initializer immediately
        before the first real insn.
        (mips_pic_base_register, mips_got_load): New functions.
        (mips_split_symbol): Generalize the name of the LO_SUM_OUT
        parameter to LOW_OUT.  Say that it can be any valid SET_SRC
        when splitting a load-address operation.  Split SYMBOL_GOT_DISP
        constants and highs of SYMBOL_GOT_PAGE_OFST constants.
        (mips_call_tls_get_addr): Update the call to mips_expand_call,
        also passing NULL_RTX rather than const0_rtx as the aux argument.
        (mips_rewrite_small_data_p): Check mips_lo_relocs and mips_split_p
        instead of TARGET_EXPLICIT_RELOCS.
        (mips_ok_for_lazy_binding_p): Check SYMBOL_REF_BIND_NOW_P.
        (mips_load_call_address): Replace the sibcall_p argument with
        a mips_call_type argument.  Use mips_got_load.
        (mips16_local_alias): New structure.
        (mips16_local_aliases): New variable.
        (mips16_local_aliases_hash): New function.
        (mips16_local_aliases_eq): Likewise.
        (mips16_local_alias): Likewise.
        (mips16_stub_function): Likewise.
        (mips16_build_function_stub): Create a local alias for the target
        function.  Handle TARGET_ABICALLS.  For PIC abicalls, emit a
        .cpload directive and an R_MIPS_NONE relocation for the target
        function, then load the alias rather than the function itself.
        Wrap the non-PIC abicalls version in ".option pic0/.option pic2".
        (mips16_copy_fpr_return_value): Use mips16_stub_function and
        mips_expand_call.  Set SYMBOL_REF_BIND_NOW on the symbol.
        (mips16_build_call_stub): Replace the FN parameter with an
        FN_PTR parameter.  Force the address into a register if it
        isn't a call_insn_operand; don't rely on the caller to do this.
        If a call to a locally-defined and locally-binding MIPS16
        function must be made indirectly, redirect the call to the
        function's local alias.  Use mips16_stub_function_p,
        mips16_stub_function, mips_expand_call and use_reg.
        Set SYMBOL_FLAG_BIND_NOW on __mips_call_* symbols.
        Use explicit %hi and %lo accesses where possible.
        Use MIPS_CALL to generate the correct code form of a
        jal instruction.  Add clobbers of $18 instead of uses.
        Update the call to mips_emit_call_insn.
        (mips_expand_call): Replace the SIBCALL_P argument with a
        mips_call_type argument and handle the new MIPS_CALL_EPILOGUE value.
        Take a LAZY_P parameter.  Call mips16_build_call_stub first,
        allowing it to modify the call address.  Update the calls to
        mips_load_call_address and mips_emit_call_insn.
        (mips_split_call): New function.
        (mips_init_relocs): Clear mips_split_hi_p.  Only use %gp_rel if
        !TARGET_MIPS16.  Split SYMBOL_GOT_DISP, and the high parts of
        SYMBOL_GOT_PAGE_OFST, for MIPS16 code.
        (mips_global_pointer): Check mips16_cfun_returns_in_fpr_p.
        (mips_extra_live_on_entry): Include MIPS16_PIC_TEMP_REGNUM
        if TARGET_MIPS16.
        (mips_cprestore_slot): New function.
        (mips_restore_gp): Take a TEMP parameter.  Handle TARGET_MIPS16
        and use mips_cprestore_slot.
        (mips_output_function_prologue): Handle TARGET_MIPS16 for
        LOADGP_OLDABI.
        (mips_emit_loadgp): Move into MIPS16_PIC_TEMP for MIPS16,
        then use a copygp_mips16 instruction to set up $28.
        (mips_expand_prologue): Initialize the cprestore slot for MIPS16 too.
        (mips16_lay_out_constants): Call split_all_insns_noflow.
        (mips_reorg_process_insns): Explicitly set all_noreorder_p to
        false if TARGET_MIPS16.
        (mips_reorg): Don't call vr4130_align_insns if TARGET_MIPS16.
        (mips_output_mi_thunk): Use mips_got_symbol_type_p.  Use the
        mips_dangerous_for_la25_p approach for MIPS16 PIC calls too.
        (mips_set_mips16_mode): Always set MASK_EXPLICIT_RELOCS for
        MIPS16 code.  Allow MIPS16 o32 PIC.
        (mips_override_options): Allow MIPS16 o32 PIC.
        * config/mips/mips.md: Lower CONST_GP_P moves into register moves
        after reload if TARGET_USE_GOT.
        (UNSPEC_COPYGP): New constant.
        (length): Use a default length of 8 for MIPS16 GOT loads.
        (*got_disp<mode>): Check mips_split_p instead of TARGET_XGOT.
        (*got_page<mode>): Check mips_split_hi_p.
        (*got_disp<mode>, *got_page<mode>): Use mips_got_load.
        (unspec_got<mode>, unspec_call<mode>): New expanders.
        (load_got<mode>, load_call<mode>): Remove the length attributes.
        Use a got attribute instead of a type attribute.
        (copygp_mips16): New insn.
        (restore_gp): Add a scratch clobber and pass it to mips_restore_gp.
        (load_call<mode>): Use a "d" constraint instead of an "r" constraint.
        (sibcall, sibcall_value, call, call_value): Update the calls
        to mips_expand_call.
        (call_internal, call_value_internal): Use mips_split_call.
        (call_value_multiple_internal): Likewise.
        (call_split): Move after call_internal (the insn it is split from).
        (call_internal_direct, call_value_internal_direct): Turn into
        define_insn_and_splits.  Split if TARGET_SPLIT_CALLS.
        (call_direct_split, call_value_direct_split): New patterns.
        * config/mips/constraints.md (c): Handle TARGET_MIPS16 first
        and use M16_REGS instead of M16_NA_REGS.
        * config/mips/predicates.md (const_call_insn_operand): Replace
        the TARGET_ABSOLUTE_ABICALLS-based check with a more general
        mips_use_pic_fn_addr_reg_p check.
        (move_operand): Reject HIGHs if mips_split_hi_p.
        * config/mips/mips16.S: Assembly as empty if the ABI is not suitable.
        (__mips16_floatunsisf): Inline __mips16_floatsisf.
        (CALL_STUB_NO_RET, CALL_STUB_REG): Copy the target register to $25.
        * config/mips/libgcc-mips16.ver: New file.
        * config/mips/t-libgcc-mips16 (SHLIB_MAPFILES): Add
        $(srcdir)/config/mips/libgcc-mips16.ver.

2008-08-09  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_unspec_address_offset): Move earlier in file.
        (mips_unspec_address, mips_unspec_offset_high): Likewise.
        (mips_ok_for_lazy_binding_p, mips_load_call_address): Likewise.
        (mips16_cfun_returns_in_fpr_p): Likewise.

2008-08-09  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.h (MASK_RETURN_ADDR): Expand commentary.
        * config/mips/linux-unwind.h (mips_fallback_frame_state): Add 2
        rather than 4 to PC.

2008-08-09  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.h (STATIC_CHAIN_REGNUM): Remap to $15.
        (FUNCTION_PROFILER): Save the static chain pointer into $2
        beforehand and restore it aftewards.
        (TRAMPOLINE_TEMPLATE): Adjust accordingly.  Load the target
        address directly into $25 and call the function through $25;
        do not clobber $3.  Pad the DImode version to cover the space
        left by the deleted $25 <- $3 move.
        (TRAMPOLINE_SIZE): Adjust the size of the SImode version after
        the removal of the $25 <- $3 move.
        (INITIALIZE_TRAMPOLINE): Update offsets accordingly.
        * config/mips/sdemtk.h (FUNCTION_PROFILER): As for mips.h.

2008-08-09  Richard Sandiford  <rdsandiford@googlemail.com>
            Daniel Jacobowitz  <dan@codesourcery.com>

        * config/mips/mips.h (FUNCTION_NAME_ALREADY_DECLARED): Delete.
        * config/mips/linux.h (ASM_DECLARE_FUNCTION_NAME): Delete.
        (ASM_DECLARE_FUNCTION_SIZE, FUNCTION_NAME_ALREADY_DECLARED): Delete.
        * config/mips/mips.c (mips_start_function_definition): New function.
        (mips_end_function_definition): Likewise.
        (mips_output_function_prologue): Use mips_start_function_definition.
        (mips_output_function_epilogue): Use mips_end_function_definition.
        (build_mips16_function_stub): Use mips_start_function_definition
        and mips_end_function_definition.
        (build_mips16_call_stub): Likewise.

2008-08-09  Richard Guenther  <rguenther@suse.de>

        * gimple.c (gimple_build_call_1): Deal with FUNCTION_DECL fn.
        * gimple.h (gimple_call_fn): Adjust comment.
        (gimple_call_set_fndecl): New function.
        (gimple_call_fndecl): Adjust for GIMPLE_CALL no
        longer having bare FUNCTION_DECL operand.
        (gimple_call_return_type): Likewise.
        * tree-cfg.c (verify_stmt): Verify function operand of a GIMPLE_CALL.

        * value-prof.c (gimple_divmod_fixed_value): Do not emit labels.
        (gimple_mod_pow2): Likewise.
        (gimple_mod_subtract): Likewise.
        (gimple_ic): Likewise.
        (gimple_stringop_fixed_value): Likewise.
        (gimple_indirect_call_to_profile): Fix for GIMPLE_CALL no
        longer having bare FUNCTION_DECL operand.
        * ipa-cp.c (ipcp_update_callgraph): Use gimple_call_set_fndecl.
        * omp-low.c (optimize_omp_library_calls): Likewise.
        * cgraphunit.c (update_call_expr): Likewise.
        * tree-ssa-math-opts.c (execute_cse_reciprocals): Likewise.
        (execute_convert_to_rsqrt): Likewise.
        * cfgexpand.c (gimple_to_tree): Simplify.
        (release_stmt_tree): Fix for GIMPLE_CALL no longer having
        bare FUNCTION_DECL operand.
        * tree-nested.c (init_tmp_var_with_call): Use gimple_call_return_type.
        (convert_gimple_call): Use gimple_call_fndecl.
        * c-common.c (c_warn_unused_result): Likewise.

2008-08-09  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR c/17880
        * c-typeck.c (digest_init): Call verify_sequence_points from here.
        (c_finish_return): Likewise.
        (c_start_case): Likewise.
        * c-common.c (warn_for_collisions_1): Use explicit location in
        warning.
        * c-parser.c (c_parser_condition): New. Call
        verify_sequence_points.
        (c_parser_paren_condition): Call c_parser_condition.
        (c_parser_for_statement): Call c_parser_condition.

2008-08-09  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 36901
        * diagnostic.def (DK_PEDWARN, DK_PERMERROR): New.  
        * diagnostic.c (pedantic_warning_kind, permissive_error_kind):
        Moved from diagnostic.h
        (diagnostic_report_diagnostic): Return bool. Handle DK_PEDWARN and
        DK_PERMERROR.
        (emit_diagnostic): New.
        (warning0, pedwarn0): Delete.
        (warning, warning_at, pedwarn, permerror): Return bool.  
        * diagnostic.h (pedantic_warning_kind, permissive_error_kind):
        Moved to diagnostic.c.
        (struct diagnostic_context): Use correct type for
        classify_diagnostic.
        (diagnostic_report_diagnostic): Update declaration.
        (emit_diagnostic): Declare.
        * errors.c (warning): Return bool.  
        * errors.h (warning): Update declaration.
        * toplev.h (warning0, pedwarn0): Delete.
        (warning, warning_at, pedwarn, permerror): Return bool.
        * c-errors.c (pedwarn_c99, pedwarn_c90): Use DK_PEDWARN.
        * c-decl.c (locate_old_decl): Delete 'diag' argument. Always use
        inform. Update all calls.
        (diagnose_mismatched_decls): Check return value of warning/pedwarn
        before giving informative note.
        (implicit_decl_warning): Likewise.  
        * c-typeck.c (build_function_call): Likewise.  
        * tree-sssa.c (warn_uninit): Likewise.  
        * builtins.c (gimplify_va_arg_expr): Likewise.

2008-08-09  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 7651
        * doc/invoke.texi (-Wextra): Move warning from here...
        (-Wuninitialized): ... to here.
        
2008-08-08  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 28875
        * flags.h (set_Wunused): Delete
        * toplev.c (process_options): Handle Wunused flags here.
        * opts.c (maybe_warn_unused_parameter): Delete.
        (common_handle_option): Replace set_Wunused by warn_unused.
        (set_Wextra): Do not handle Wunused-parameter here.
        (set_Wunused): Delete.
        * c-opts.c (c_common_handle_option): Replace set_Wunused by
        warn_unused.
        * common.opt (Wunused): Add Var and Init.
        (Wunused-function): Likewise.
        (Wunused-label): Likewise.
        (Wunused-parameter): Likewise.
        (Wunused-value): Likewise.
        (Wunused-variable): Likewise.
        
2008-08-08  Peter Bergner  <bergner@vnet.ibm.com>

        * doc/invoke.texi: Add cpu_type power7.
        * config.in (HAVE_AS_VSX): New.
        * config.gcc: Add cpu_type power7.
        * configure.ac (HAVE_AS_VSX): Check for assembler support of the
        VSX instructions.
        * configure: Regenerate.
        * config/rs6000/rs6000.c (rs6000_override_options): Alias power7 to
        power5.
        * config/rs6000/rs6000.h (ASM_CPU_POWER7_SPEC): Define.
        (ASM_CPU_SPEC): Pass %(asm_cpu_power7) for -mcpu=power7.
        (EXTRA_SPECS): Add asm_cpu_power7 spec string.

2008-08-08  Dorit Nuzman  <dorit@il.ibm.com>

        * tree-vect-transform.c (vectorizable_conversion): Pass the integral
        type to vectorize.builtin_conversion.
        (vectorizable_conversion): Likewise.
        * config/i386/i386.c (ix86_vectorize_builtin_conversion): Always takes
        integral type as input.
        * config/rs6000/rs6000.c (rs6000_builtin_conversion): Add case for
        FIX_TRUNC_EXPR.
        (rs6000_expand_builtin): Add case for ALTIVEC_BUILTIN_VCTUXS
        and ALTIVEC_BUILTIN_VCTSXS.
        (rs6000_builtin_mul_widen_even. rs6000_builtin_mul_widen_odd): Fix
        formatting. 

2008-08-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (likely_value): Calls are not all varying.
        (surely_varying_stmt_p): Calls are varying only if they are
        non-builtin and not indirect or have no result.
        (ccp_fold): Re-instantiate code before the tuples merge.

2008-08-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/37056
        * gimple.h (gimple_assign_rhs_class): New helper function.
        * tree-ssa-loop-niter.c (get_val_for): Fix tuplification, handle
        unary operations properly.

2008-08-07  Jan Hubicka  <jh@suse.cz>

        * i386.h (ix86_size_cost): Declare.
        (ix86_cur_cost): New function macro.
        * i386.md (peepholes expanding size and splitters): Predicate by
        optimize_insn_for_speed_p.
        (peepholes reduce size and splitters): Predicate by
        optimize_insn_for_size_p.
        * i386.c (ix86_size_cost): Rename from ...
        (size_cost): This one.
        (override_options): Update.
        (decide_alg): Likewise.
        (ix86_expand_clear): Use RTL profile.
        (ix86_pad_returns): Use RTL profile.

2008-08-07  Jan Hubicka  <jh@suse.cz>

        * recog.c (split_all_insns): Set RTL profile
        (peephole2_optimize): Likewise.
        * function.c (thread_prologue_and_epilogue_insns): Likewise.
        * combine.c (combine_instructions): Likewise.

2008-08-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c (c_common_reswords): Also warn about keyword "bool".

2008-08-07  Bob Wilson  <bob.wilson@acm.org>
        
        * config/xtensa/xtensa.c (xtensa_copy_incoming_a7): Copy incoming
        value in a6 after the set_frame_ptr insn.
        
2008-08-07  Richard Henderson  <rth@redhat.com>

        PR debug/37033
        * gcc.c (cpp_options): Pass along -g*.

2008-08-07  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/arm.c (output_move_neon): Update comment describing
        big-endian vector layout.
        (arm_assemble_integer): Do not handle big-endian NEON vectors
        specially.
        * config/arm/neon.md (vec_set<mode>_internal, vec_extract<mode>,
        neon_vget_lane<mode>_sext_internal,
        neon_vget_lane<mode>_zext_internal, neon_vget_lane<mode>): Adjust
        element indices for big-endian.

2008-08-07  Richard Henderson  <rth@redhat.com>

        * configure.ac (HAVE_GAS_CFI_PERSONALITY_DIRECTIVE): New.
        * configure, config.in: Rebuild.
        * debug.h (dwarf2out_do_cfi_asm): Declare.
        * c-cppbuiltin.c (c_cpp_builtins): Use it.
        * dwarf2out.c (dwarf2out_do_cfi_asm): New.
        (dwarf2out_cfi_label, add_fde_cfi, output_call_frame_info,
        dwarf2out_begin_prologue, dwarf2out_end_epilogue): Use it.

2008-08-07  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/iwmmxt.md (movv8qi_internal, movv4hi_internal,
        movv2si_internal): Combine into mov<mode>_internal.
        (movv2si_internal_2): Remove.

2008-08-07  Jan Hubicka  <jh@suse.cz>

        PR target/37048
        * i386.md (single stringop patterns): Enable unconditionally. 

2008-08-07  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/36992
        * config/i386/emmintrin.h (_mm_move_epi64): Use
        __builtin_ia32_movq128.

        * config/i386/i386.c (ix86_builtins): Add IX86_BUILTIN_MOVQ128.
        (bdesc_args): Add IX86_BUILTIN_MOVQ128.

        * config/i386/sse.md (sse2_movq128): New.

        * doc/extend.texi: Document __builtin_ia32_movq128.

2008-08-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/37042
        * tree-ssa-alias-warnings.c (nonstandard_alias_p): Ref-all
        pointers can access anything.

2008-08-06  Jan Hubicka  <jh@suse.cz>

        * optabs.c (emit_unop_insn): Break out to ...
        (maybe_emit_unop_insn): ... this one.
        (expand_sfix_optab): Use maybe variant.
        * optabs.h (maybe_emit_unop_insn): Declare.

        * i386.md (mov0 patterns): Enable by default.
        (FP conversion expanders): Disable expansion of code expanding
        sequences when instruction should be optimized for size.
        (single strinop patterns): Enable when optimizing for size.
        (string expanders): Disable expanding of code expanding sequences
        when optimizning instruction for size.
        * i386.c (ix86_expand_vector_move_misalign): Do code size optimization
        per BB basis.
        (ix86_fp_comparison_sahf_cost): Likewise.
        (ix86_expand_branch): Likewise.
        (ix86_expand_ashl_const): Likewise.
        (ix86_split_ashl): Likewise.
        (ix86_expand_strlen): Likewise.
        (ix86_emit_fp_unordered_jump): Likewie.

2008-08-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * c-common.c: Fix typo.
        (c_common_reswords): Activate more C++ keyword warnings.

        * matrix-reorg.c (compute_offset): Avoid C++ keywords.

2008-08-06  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 26785
        * diagnostic.c (permerror_at): New.
        * toplev.h (permerror_at): Declare.
        
2008-08-06  Victor Kaplansky  <victork@il.ibm.com>
            Ira Rosen  <irar@il.ibm.com>

        * tree-vect-transform.c (vect_model_simple_cost): Return
        immediately if stmt is pure SLP.
        (vect_model_store_cost): Ditto.
        (vect_model_load_cost): Ditto.
        (vectorizable_store): Remove PURE_SLP check before call
        to vect_model_store_cost.
        (vect_model_store_cost): When checking whether stmt describe
        strided access, add a check that it is not slp_node.

2008-08-06  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 8715
        * c-common.c (warn_for_sign_compare): New. Handle separately the
        case that 'constant' is zero.
        * c-typeck.c (build_binary_op): Move code to c-common.c
        
2008-08-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * config/alpha/alpha.c (alpha_preferred_reload_class,
        alpha_secondary_reload, alpha_emit_set_const_1, function_value,
        alpha_output_mi_thunk_osf): Avoid C++ keywords.
        * config/arm/arm.c (output_move_vfp, output_move_neon): Likewise.
        * config/arm/arm.md: Likewise.
        * config/avr/avr-protos.h (preferred_reload_class,
        test_hard_reg_class, avr_simplify_comparison_p,
        out_shift_with_cnt, class_max_nregs): Likewise.
        * config/avr/avr.c (class_max_nregs, avr_simplify_comparison_p,
        output_movqi, output_movhi, output_movsisf, out_shift_with_cnt,
        preferred_reload_class, test_hard_reg_class): Likewise.
        * config/bfin/bfin.c (legitimize_pic_address, hard_regno_mode_ok,
        bfin_memory_move_cost, bfin_secondary_reload,
        bfin_output_mi_thunk): Likewise.
        * config/crx/crx.c (crx_secondary_reload_class,
        crx_memory_move_cost): Likewise.
        * config/frv/frv-protos.h (frv_secondary_reload_class,
        frv_class_likely_spilled_p, frv_class_max_nregs): Likewise.
        * config/frv/frv.c (frv_override_options, frv_alloc_temp_reg,
        frv_secondary_reload_class, frv_class_likely_spilled_p,
        frv_class_max_nregs): Likewise.
        * config/h8300/h8300.c (h8300_classify_operand,
        h8300_unary_length, h8300_bitfield_length, h8300_asm_insn_count):
        Likewise.
        * config/i386/winnt.c (i386_pe_declare_function_type): Likewise.
        * config/ia64/ia64.c (ia64_preferred_reload_class,
        ia64_secondary_reload_class, ia64_output_mi_thunk): Likewise.
        * config/iq2000/iq2000.c (gen_int_relational): Likewise.
        * config/m32c/m32c.c (class_can_hold_mode, m32c_output_compare):
        Likewise.
        * config/m68hc11/m68hc11.c (preferred_reload_class,
        m68hc11_memory_move_cost): Likewise.
        * config/mcore/mcore.c (mcore_secondary_reload_class,
        mcore_reload_class): Likewise.
        * config/mips/mips.c (mips_hard_regno_mode_ok_p,
        mips_class_max_nregs, mips_cannot_change_mode_class,
        mips_preferred_reload_class, mips_secondary_reload_class,
        mips_output_mi_thunk): Likewise.
        * config/mmix/mmix.c (mmix_preferred_reload_class,
        mmix_preferred_output_reload_class, mmix_secondary_reload_class):
        Likewise.
        * config/mn10300/mn10300.c (mn10300_secondary_reload_class):
        Likewise.
        * config/pa/pa.c (pa_secondary_reload, pa_combine_instructions,
        pa_can_combine_p, pa_cannot_change_mode_class): Likewise.
        * config/pa/pa.h (LEGITIMIZE_RELOAD_ADDRESS): Likewise.
        * config/rs6000/rs6000.c (paired_expand_vector_init,
        rs6000_secondary_reload_class, rs6000_output_mi_thunk,
        compare_section_name, rs6000_memory_move_cost): Likewise.
        * config/s390/s390.c (s390_emit_compare_and_swap,
        s390_preferred_reload_class, s390_secondary_reload,
        legitimize_pic_address, legitimize_tls_address,
        legitimize_reload_address, s390_expand_cs_hqi, s390_expand_atomic,
        s390_class_max_nregs): Likewise.
        * config/s390/s390.h (LEGITIMIZE_RELOAD_ADDRESS): Likewise.
        * config/s390/s390.md: Likewise.
        * config/score/score-protos.h (score_secondary_reload_class,
        score_preferred_reload_class): Likewise.
        * config/score/score.c (score_preferred_reload_class,
        score_secondary_reload_class): Likewise.
        * config/score/score3.c (score3_output_mi_thunk,
        score3_preferred_reload_class, score3_secondary_reload_class,
        score3_hard_regno_mode_ok): Likewise.
        * config/score/score3.h (score3_preferred_reload_class,
        score3_secondary_reload_class): Likewise.
        * config/score/score7.c (score7_output_mi_thunk,
        score7_preferred_reload_class, score7_secondary_reload_class,
        score7_hard_regno_mode_ok): Likewise.
        * config/score/score7.h (score7_preferred_reload_class,
        score7_secondary_reload_class): Likewise.
        * config/sh/sh.c (prepare_move_operands, output_far_jump,
        output_branchy_insn, add_constant, gen_block_redirect,
        sh_insn_length_adjustment, sh_cannot_change_mode_class,
        sh_output_mi_thunk, replace_n_hard_rtx, sh_secondary_reload):
        Likewise.
        * config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
        * config/stormy16/stormy16.c (xstormy16_output_cbranch_hi,
        xstormy16_output_cbranch_si, xstormy16_secondary_reload_class,
        xstormy16_preferred_reload_class): Likewise.
        * config/xtensa/xtensa.c (xtensa_expand_compare_and_swap,
        xtensa_expand_atomic, override_options,
        xtensa_preferred_reload_class, xtensa_secondary_reload_class):
        Likewise.
        * reorg.c (try_merge_delay_insns): Likewise.
        * tree.c (merge_dllimport_decl_attributes): Likewise.

        * config/frv/frv.c (frv_print_operand): Change isalpha to ISALPHA.

2008-08-06  Michael Matz  <matz@suse.de>

        * Makefile.in (write_entries_to_file): Quote words.
        * gengtype.c: (read_input_line): Skip over leading white-space.

2008-08-06  Marc Gauthier  <marc@tensilica.com>

        * config.gcc: Match more processor names for Xtensa.
        * configure.ac: Likewise.
        * doc/install.texi (Specific): Likewise.
        * configure: Regenerate.

2008-08-06  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (expand_builtin_profile_func): Avoid C++ keywords.
        * calls.c (avoid_likely_spilled_reg): Likewise.
        * cfgexpand.c (gimple_assign_rhs_to_tree): Likewise.
        * cgraph.c (cgraph_clone_edge, cgraph_clone_node): Likewise.
        * config/i386/i386.c (ix86_expand_special_args_builtin,
        ix86_secondary_reload): Likewise.
        * except.c (struct eh_region, gen_eh_region_catch,
        remove_unreachable_regions, duplicate_eh_regions,
        assign_filter_values, build_post_landing_pads,
        sjlj_find_directly_reachable_regions, remove_eh_handler,
        reachable_next_level, foreach_reachable_handler,
        can_throw_internal_1, can_throw_external_1,
        collect_one_action_chain): Likewise.
        * expr.c (expand_expr_real_1, vector_mode_valid_p): Likewise.
        * fold-const.c (twoval_comparison_p, eval_subst): Likewise.
        * function.c (update_temp_slot_address, instantiate_new_reg,
        instantiate_virtual_regs_in_rtx,
        instantiate_virtual_regs_in_insn): Likewise.
        * gimple.c (extract_ops_from_tree, gimple_seq_copy): Likewise.
        * gimplify.c (gimplify_call_expr, gimplify_init_constructor,
        gimplify_cleanup_point_expr): Likewise.
        * ipa-cp.c (ipcp_lattice_changed): Likewise.
        * passes.c (next_pass_1): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * profile.c (branch_prob): Likewise.
        * tree-dump.c (dump_register): Likewise.
        * tree-eh.c (replace_goto_queue_cond_clause, lower_catch):
        Likewise.
        * tree-inline.c (remap_ssa_name, remap_type_1, remap_blocks,
        copy_statement_list, remap_gimple_op_r, copy_tree_body_r,
        copy_edges_for_bb, copy_cfg_body, copy_tree_r,
        copy_arguments_for_versioning, copy_static_chain): Likewise.
        * tree-into-ssa.c (names_replaced_by, add_to_repl_tbl,
        add_new_name_mapping, register_new_name_mapping): Likewise.
        * tree-mudflap.c (mf_xform_derefs): Likewise.
        * tree-predcom.c (struct chain, dump_chain, replace_ref_with,
        get_init_expr, combine_chains): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-ssa-structalias.c (create_variable_info_for): Likewise.
        * tree-vrp.c (simplify_cond_using_ranges): Likewise.
        * tree.c (substitute_in_expr, iterative_hash_expr): Likewise.
        * value-prof.c (gimple_duplicate_stmt_histograms): Likewise.

2008-08-06  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/37010
        * calls.c (expand_call): Use the biggest preferred stack
        boundary.

2008-08-06  Michael Matz  <matz@suse.de>

        PR target/36613
        * reload.c (push_reload): Merge in,out,in_reg,out_reg members
        for reused reload, instead of overwriting them.

2008-08-06  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/37009
        * cfgexpand.c (expand_stack_alignment): Check parm_stack_boundary
        for incoming stack boundary.

        * function.c (assign_parm_find_entry_rtl): Update
        parm_stack_boundary.

        * function.h (rtl_data): Add parm_stack_boundary.

        * config/i386/i386.c (ix86_finalize_stack_realign_flags): Check
        parm_stack_boundary for incoming stack boundary.

2008-08-06  Joseph Myers  <joseph@codesourcery.com>

        * jump.c (rtx_renumbered_equal_p): Do not call subreg_regno_offset
        for unrepresentable subregs or treat them as equal to other regs
        or subregs with the same register number.

2008-08-06  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/35432
        * gimplify.c (gimplify_modify_expr): Do not optimize zero-sized types
        if want_value.

2008-08-06  Jan Hubicka  <jh@suse.cz>

        * predict.c (maybe_hot_frequency_p): When profile is absent, all
        frequencies might be hot.

2008-08-06  Andreas Krebbel  <krebbel1@de.ibm.com>

        * reload.c (find_reloads): Force constants into literal pool
        also if they are wrapped in a SUBREG.

2008-08-06  Maxim Kuvyrkov  <maxim@codesourcery.com>

        PR target/35659
        * haifa-sched.c (sched_insn_is_legitimate_for_speculation_p): Move ...
        * sched-deps.c (sched_insn_is_legitimate_for_speculation_p): ... here.
        Don't allow predicated instructions for data speculation.
        * sched-int.h (sched_insn_is_legitimate_for_speculation_p): Move
        declaration.

2008-08-06  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * haifa-sched.c (extend_global): Split to extend_global_data and
        extend_region_data.  Update all uses.
        (extend_all): Rename to extend_block_data.

2008-08-06  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * sched-rgn.c (new_ready): Check if instruction can be
        speculatively scheduled before attempting speculation.
        (debug_rgn_dependencies): Remove wrongful assert.

2008-08-05  Bob Wilson  <bob.wilson@acm.org>

        * config/xtensa/t-xtensa: Remove dependency for gt-xtensa.h.
        
2008-08-05  Bob Wilson  <bob.wilson@acm.org>
        
        * config/xtensa/xtensa.c (xtensa_va_start): Unshare valist.
        (xtensa_gimplify_va_arg_expr): Unshare valist, orig_ndx, ndx, array,
        va_size, and type_size.
        
2008-08-04  Jason Merrill  <jason@redhat.com>

        PR c++/37016
        * tree-ssa.c (useless_type_conversion_p_1): Call langhook
        if TYPE_STRUCTURAL_EQUALITY_P is true for both types.

2008-08-05  Richard Henderson  <rth@redhat.com>

        * configure.ac (HAVE_GAS_CFI_DIRECTIVE): Check .cfi_personality.
        * configure: Rebuild.

2008-08-05  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/37024
        * tree-tailcall.c (process_assignment): Use gimple_assign_cast_p
        instead of IS_CONVERT_EXPR_CODE_P for seeing if the assignment
        is a conversion.

2008-08-05  Richard Henderson  <rth@redhat.com>

        * Makefile.in (c-cppbuiltin.o): Depend on debug.h.
        * c-cppbuiltin.c (c_cpp_builtins): Define __GCC_HAVE_DWARF2_CFI_ASM.
        * doc/cpp.texi (__GCC_HAVE_DWARF2_CFI_ASM): Document it.
        * common.opt (fdwarf2-cfi-asm): New.
        * configure.ac (HAVE_GAS_CFI_DIRECTIVE): New.
        * config.in, configure: Rebuild.
        * dwarf2asm.c (dw2_asm_output_data_raw): New.
        (dw2_asm_output_data_uleb128_raw, dw2_asm_output_data_sleb128_raw): New.
        (dw2_force_const_mem): Externalize.
        * dwarf2asm.h: Update.
        * dwarf2out.c (dwarf2out_cfi_label): If flag_dwarf2_cfi_asm, don't
        generate a real label.
        (output_cfi_directive): New.
        (add_fde_cfi): If flag_dwarf2_cfi_asm, use it.
        (output_call_frame_info): Do nothing if flag_dwarf2_cfi_asm.
        (dwarf2out_begin_prologue): Emit .cfi_startproc, .cfi_personality,
        and .cfi_lsda.
        (dwarf2out_end_epilogue): Emit .cfi_endproc.
        (output_loc_operands_raw, output_loc_sequence_raw): New.
        (output_cfa_loc_raw): New.
        
2008-08-05  Paul Brook  <paul@codesourcery.com>

        * doc/invoke.texi: Document new ARM -mfpu= and -mcpu= options.
        * config/arm/arm.c (all_fpus): Add vfpv3 and vfpv3-d16.
        (fp_model_for_fpu): Add entry for FPUTYPE_VFP3D16.
        (arm_file_start): Add FPUTYPE_VFP3D16.  Rename vfp3 to vfpv3.
        * config/arm/arm.h (TARGET_VFPD32): Define.
        (TARGET_VFP3): Use TARGET_VFPD32.
        (fputype): Add FPUTYPE_VFP3D16.
        (LAST_VFP_REGNUM): Use TARGET_VFPD32.
        * config/arm/constraints.md ("w"): Use TARGET_VFPD32.
        * config/arm/arm-cores.def: Add cortex-r4f.
        * config/arm/arm-tune.md: Regenerate.

2008-08-05  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu_spu_mfcio.h: Wrap in extern "C" if __cplusplus.
        Reword some comments throughout the file.

        (MFC_MIN_DMA_LIST_ELEMENTS): New define.
        (MFC_MAX_DMA_LIST_ELEMENTS): Likewise.
        (MFC_MIN_DMA_LIST_SIZE): Redefine in terms of MFC_MIN_DMA_LIST_ELEMENTS.
        (MFC_MAX_DMA_LIST_SIZE): Redefine in terms of MFC_MAX_DMA_LIST_ELEMENTS.

        (MFC_START_ENABLE): Remove PPU-only define.
        (MFC_PUTS_CMD, MFC_PUTFS_CMD, MFC_PUTBS_CMD): Likewise.
        (MFC_GETS_CMD, MFC_GETFS_CMD, MFC_GETBS_CMD): Likewise.

        (MFC_PUTB_CMD, MFC_PUTF_CMD): Reimplement using symbolic constants.
        (MFC_PUTL_CMD, MFC_PUTLB_CMD, MFC_PUTLF_CMD): Likewise.
        (MFC_PUTR_CMD, MFC_PUTRB_CMD, MFC_PUTRF_CMD): Likewise.
        (MFC_PUTRL_CMD, MFC_PUTRLB_CMD, MFC_PUTRLF_CMD): Likewise.
        (MFC_GETB_CMD, MFC_GETF_CMD): Likewise.
        (MFC_GETL_CMD, MFC_GETLB_CMD, MFC_GETLF_CMD): Likewise.
        (MFC_SNDSIGB_CMD, MFC_SNDSIGF_CMD): Likewise.

        (MFC_SDCRT_CMD, MFC_SDCRTST_CMD): New defines.
        (MFC_SDCRZ_CMD, MFC_SDCRST_CMD, MFC_SDCRF_CMD): Likewise.
        (mfc_sdcrt, mfc_sdcrtst): Likewise.
        (mfc_sdcrz, mfc_sdcrst, mfc_sdcrf): Likewise.

        (spu_read_machine_status): Fix typo.

2008-08-05  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.h (CANNOT_CHANGE_MODE_CLASS): Allow (multi)word-sized
        SUBREG of multi-word hard register.
        * config/spu/spu.c (valid_subreg): Likewise.
        (adjust_operand): Handle SUBREGs of multi-word hard registers.

2008-08-04  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-loop-ivopts.c (add_iv_value_candidates): Also add
        the candidate with the stripped base if that base is different
        from the original base even for offset zero.

2008-08-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/36691
        * tree-ssa-loop-niter.c (number_of_iterations_lt_to_ne): Correctly
        check for no_overflow.

2008-08-04  Richard Guenther  <rguenther@suse.de>

        * tree-vect-transform.c (vectorizable_call): Fix tuplification.

2008-08-04  Paul Brook  <paul@codesourcery.com>

        * cofig/arm/arm.c (thumb_core_reg_alloc_order): New.
        (arm_order_regs_for_local_alloc): New function.
        * config/arm/arm-protos.h (arm_order_regs_for_local_alloc): Add
        prototype.
        * config/arm/arm.h (ORDER_REGS_FOR_LOCAL_ALLOC): Define.

2008-08-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/37012
        * config/i386/i386.c (ix86_expand_prologue): Use UNITS_PER_WORD
        instead of STACK_BOUNDARY / BITS_PER_UNIT to align stack.
        (ix86_expand_epilogue): Likewise.

2008-08-04  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_compute_frame_layout): Fix a typo
        in comments.

2008-08-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (*mov<mode>_internal_rex64): Use Yi instead of x
        to avoid inter-unit moves for !TARGET_INTER_UNIT_MOVES.
        (*movv2sf_internal_rex64): Ditto.

2008-08-03  Jan Hubicka  <jh@suse.cz>

        * optabs.c (expand_binop, expand_builtin_pow, expand_builtin_powi,
        expand_builtin_strcat): Upse optimize_insn_for_speed predicate.
        * expmed.c (expand_smod_pow2): Likewise.

2008-08-03  Uros Bizjak  <ubizjak@gmail.com>

        PR target/36992
        * config/i386/sse.md (vec_concatv2di): Add Y2 constraint to
        alternative 0 of operand 1.
        (*vec_concatv2di_rex64_sse): Ditto.
        (*vec_concatv2di_rex64_sse4_1): Add x constraint to alternative 0
        of operand 1.
        (*sse2_storeq_rex64): Penalize allocation of "r" registers.
        * config/i386/mmx.md (*mov<mode>_internal_rex64): Penalize allocation
        of "Y2" registers to avoid SSE <-> MMX conversions for DImode moves.
        (*movv2sf_internal_rex64): Ditto.

2008-08-02  Richard Guenther  <rguenther@suse.de>

        PR target/35252
        * config/i386/sse.md (SSEMODE4S, SSEMODE2D): New mode iterators.
        (ssedoublesizemode): New mode attribute.
        (sse_shufps): Call gen_sse_shufps_v4sf.
        (sse_shufps_1): Macroize.
        (sse2_shufpd): Call gen_Sse_shufpd_v2df.
        (sse2_shufpd_1): Macroize.
        (vec_extract_odd, vec_extract_even): New expanders.
        (vec_interleave_highv4sf, vec_interleave_lowv4sf,
        vec_interleave_highv2df, vec_interleave_lowv2df): Likewise.
        * i386.c (ix86_expand_vector_init_one_nonzero): Call
        gen_sse_shufps_v4sf instead of gen_sse_shufps_1.
        (ix86_expand_vector_set): Likewise.
        (ix86_expand_reduc_v4sf): Likewise.

2008-08-01  Doug Kwan  <dougkwan@google.com>

        * matrix-reorg.c: Re-enable all code.
        (struct malloc_call_data): Change CALL_STMT to gimple type.
        (collect_data_for_malloc_call): Tuplify.
        (struct access_site_info): Change STMT to gimple type.
        (struct matrix_info): Change MIN_INDIRECT_LEVEL_ESCAPE_STMT,
        and MALLOC_FOR_LEVEL to gimple and gimple pointer type.
        (struct free_info): Change STMT to gimple type.
        (struct matrix_access_phi_node):  Change PHI to gimple type.
        (get_inner_of_cast_expr): Remove.
        (may_flatten_matrices_1): Tuplify.
        (may_flatten_matrices): Ditto.
        (mark_min_matrix_escape_level): Ditto.
        (ssa_accessed_in_tree): Refactor statement RHS related code into ...
        (ssa_accessed_in_call_rhs): New
        (ssa_accessed_in_assign_rhs): New
        (record_access_alloc_site_info): Tuplify.
        (add_allocation_site): Ditto.
        (analyze_matrix_allocation_site): Ditto.
        (analyze_transpose): Ditto.
        (get_index_from_offset): Ditto.
        (update_type_size): Ditto.
        (analyze_accesses_for_call_expr): Tuplify and renamed into ...
        (analyze_accesses_for_call_stmt): New. Also handle LHS of a call.
        (analyze_accesses_for_phi_node): Tuplify.
        (analyze_accesses_for_modify_stmt): Tuplify and renamed into ...
        (analyze_accesses_for_assign_stmt): Remove code for handling call LHS.
        (analyze_matrix_accesses): Tuplify.
        (check_var_data): New call-back type for check_var_notmodified_p.
        (check_var_notmodified_p): Tuplify and use call-back struct to
        return statement found.
        (can_calculate_expr_before_stmt): Factor out statement related code
        into ...
        (can_calculate_stmt_before_stmt): New.
        (check_allocation_function): Tuplify.
        (find_sites_in_func): Ditto.
        (record_all_accesses_in_func): Ditto.
        (transform_access_sites): Ditto.
        (transform_allocation_sites): Ditto.
        (matrix_reorg): Re-enable.
        (gate_matrix_reorg): Re-enable.

2008-08-01  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (compute_barrier_args_size): Set barrier_args_size
        for labels for which it hasn't been set yet.  If it has been set,
        stop walking insns and continue with next worklist item.
        (dwarf2out_stack_adjust): Don't call compute_barrier_args_size
        if the only BARRIER is at the very end of a function.

2008-08-01  H.J. Lu  <hongjiu.lu@intel.com>

        * cfgexpand.c (expand_stack_alignment): Assert that
        stack_realign_drap and drap_rtx must match.

        * function.c (instantiate_new_reg): If DRAP is used to realign
        stack, replace virtual_incoming_args_rtx with internal arg
        pointer.

2008-08-01  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (fini_pre): Take in_fre parameter.  Free
        loop information only if we initialized it.
        (execute_pre): Call fini_pre with in_fre.
        * tree-ssa-loop-ivcanon (try_unroll_loop_completely): Dump
        if we do not unroll because we hit max-completely-peeled-insns.
        Use our estimation for consistency, do allow shrinking.

2008-08-01  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (override_options): Replace ABI_STACK_BOUNDARY
        with MIN_STACK_BOUNDARY.
        (ix86_update_stack_boundary): Likewise.
        (ix86_expand_prologue): Assert MIN_STACK_BOUNDARY instead of
        STACK_BOUNDARY.

        * config/i386/i386.h (ABI_STACK_BOUNDARY): Renamed to ...
        (MIN_STACK_BOUNDARY): This.

2008-08-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/36997
        * gimplify.c (gimplify_call_expr): Set error_mark_node on GS_ERROR.

2008-08-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/36988
        * tree-ssa-ccp.c (ccp_fold): Conversions of constants only
        do not matter if that doesn't change volatile qualification.

2008-08-01  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Do not generate libada-mk.  Do not subst
        host_cc_for_libada.
        * libada-mk.in: Remove.
        * Makefile.in: Pass TARGET_LIBGCC2_CFLAGS to libgcc.mvars.
        * configure: Regenerate.

2008-08-01  Basile Starynkevitch  <basile@starynkevitch.net>

        * tree-pass.h: Added comment about not dumping passes with name
        starting with star in struct opt_pass.
        * passes.c (register_dump_files_1): Don't do dump for a pass with
        name starting with star.
        * doc/passes.texi (Pass manager): Mention pass names and special
        meaning of star prefix to avoid dump.

2008-07-31  Adam Nemet  <anemet@caviumnetworks.com>

        * config.gcc (mipsisa64r2*-*-linux*): New configuration.  Set ISA
        to MIPS64r2.
        * config/mips/mips.h (GENERATE_MIPS16E): Update comment.
        (ISA_MIPS64R2): New macro.
        (TARGET_CPU_CPP_BUILTINS, MULTILIB_ISA_DEFAULT): Handle it.
        (ISA_HAS_64BIT_REGS, ISA_HAS_MUL3, ISA_HAS_FP_CONDMOVE,
        ISA_HAS_8CC, ISA_HAS_FP4, ISA_HAS_PAIRED_SINGLE,
        ISA_HAS_MADD_MSUB, ISA_HAS_NMADD4_NMSUB4, ISA_HAS_CLZ_CLO,
        ISA_HAS_ROR, ISA_HAS_PREFETCH, ISA_HAS_PREFETCHX, ISA_HAS_SEB_SEH,
        ISA_HAS_EXT_INS, ISA_HAS_MXHC1, ISA_HAS_HILO_INTERLOCKS,
        ISA_HAS_SYNCI, MIN_FPRS_PER_FMT): Return true for ISA_MIPS64R2.
        (MIPS_ISA_LEVEL_SPEC, ASM_SPEC, LINK_SPEC): Handle -mips64r2.
        (TARGET_LOONGSON_2E, TARGET_LOONGSON_2F, TARGET_LOONGSON_2EF):
        Move up to keep list alphabetically sorted.
        (TUNE_20KC, TUNE_24K, TUNE_74K, TUNE_LOONGSON_2EF): Likewise.
        * config/mips/mips.c (mips_cpu_info_table): Add default MIPS64r2
        processor.
        * doc/invoke.texi (MIPS Options): Add -mips64r2.
        (-march=@var{arch}): Add mips64r2.

2008-07-31  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/darwin.h (MAIN_STACK_BOUNDARY): Define to 128.

2008-07-31  Steve Ellcey  <sje@cup.hp.com>

        * expr.c (expand_assignment): Check for complete type.

2008-07-31  H.J. Lu  <hongjiu.lu@intel.com>

        PR debug/36977
        * cfgexpand.c (expand_stack_alignment): Set stack_realign_tried.

        * dwarf2out.c (based_loc_descr): Check crtl->stack_realign_tried
        for stack alignment.

        * function.h (rtl_data): Add stack_realign_tried.  Update comments.

2008-07-31  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_canonical_va_list_type): Remove.
        (TARGET_CANONICAL_VA_LIST_TYPE): Remove.

2008-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/36419
        * dwarf2out.c (barrier_args_size): New variable.
        (compute_barrier_args_size, compute_barrier_args_size_1): New
        functions.
        (dwarf2out_stack_adjust): For BARRIERs call compute_barrier_args_size
        if not called yet in the current function, use barrier_args_size
        array to find the new args_size value.
        (dwarf2out_frame_debug): Free and clear barrier_args_size.

2008-07-31  H.J. Lu  <hongjiu.lu@intel.com>

        PR debug/36980
        * dwarf2out.c (dwarf2out_frame_debug_expr): Move rule 17 before
        rule 19.

2008-07-31  H.J. Lu  <hongjiu.lu@intel.com>

        PR debug/36976
        * dwarf2out.c (dwarf2out_args_size_adjust): New.
        (dwarf2out_stack_adjust): Use it.
        (dwarf2out_frame_debug_expr): Likewise.

2008-07-31  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/36978
        * tree-ssa-loop-unswitch.c (tree_may_unswitch_on): Do not fold
        the generated condition.

2008-07-31  Richard Guenther  <rguenther@suse.de>

        * passes.c (init_optimization_passes): Always call
        pass_early_warn_uninitialized.
        * opts.c (decode_options): Do not warn about -Wuninitialized at -O0.
        * doc/invoke.texi (-Wuninitialized): Correct for enabling at -O0.
        * doc/passes.texi (Warn for uninitialized variables): Adjust.

2008-07-31  Jakub Jelinek  <jakub@redhat.com>

        PR c/36970
        * builtins.c (maybe_emit_free_warning): New function.
        (expand_builtin): Process BUILT_IN_FREE even at -O0.  Call
        maybe_emit_free_warning for BUILT_IN_FREE.

        PR debug/36278
        * dwarf2out.c (get_context_die): New function.
        (force_decl_die, force_type_die): Use it.
        (dwarf2out_imported_module_or_decl): Likewise.  If base_type_die
        returns NULL, force generation of DW_TAG_typedef and put that into
        DW_AT_import.

        PR preprocessor/36649
        * c-pch.c (c_common_read_pch): Save and restore
        line_table->trace_includes across PCH restore.

2008-07-30  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/36554
        * dwarf2out.c (is_subrange_type): Deal with BOOLEAN_TYPE.

2008-07-30  Rafael Avila de Espindola  <espindola@google.com>

        PR 36974
        * final.c (call_from_call_insn): Handle COND_EXEC.

2008-07-30  H.J. Lu  <hongjiu.lu@intel.com>

        * builtins.c (std_gimplify_va_arg_expr): Replace
        PREFERRED_STACK_BOUNDARY with MAX_SUPPORTED_STACK_ALIGNMENT.
        * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.

2008-07-30  Joey Ye  <joey.ye@intel.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        * builtins.c (expand_builtin_setjmp_receiver): Replace
        virtual_incoming_args_rtx with crtl->args.internal_arg_pointer.
        (expand_builtin_apply_args_1): Likewise.
        (expand_builtin_longjmp): Need DRAP for stack alignment.
        (expand_builtin_apply): Likewise.

        * caller-save.c (setup_save_areas): Call assign_stack_local_1
        instead of assign_stack_local to allow alignment reduction.

        * calls.c (emit_call_1): Need DRAP for stack alignment if
        return pops.
        (expand_call): Replace virtual_incoming_args_rtx with
        crtl->args.internal_arg_pointer.
        * stmt.c (expand_nl_goto_receiver): Likewise.

        * cfgexpand.c (get_decl_align_unit): Estimate stack variable
        alignment and store to stack_alignment_estimated and
        max_used_stack_slot_alignment.
        (expand_one_var): Likewise.
        (expand_stack_alignment): New function.
        (tree_expand_cfg): Initialize max_used_stack_slot_alignment
        and stack_alignment_estimated fields in rtl_data.  Call
        expand_stack_alignment at end.

        * defaults.h (INCOMING_STACK_BOUNDARY): New.
        (MAX_STACK_ALIGNMENT): Likewise.
        (MAX_SUPPORTED_STACK_ALIGNMENT): Likewise.
        (SUPPORTS_STACK_ALIGNMENT): Likewise.

        * emit-rtl.c (gen_reg_rtx): Estimate stack alignment for
        stack alignment when generating virtual registers.

        * function.c (assign_stack_local): Renamed to ...
        (assign_stack_local_1): This.  Add a parameter to indicate
        if it is OK to reduce alignment.
        (assign_stack_local): Use it.
        (instantiate_new_reg): Instantiate virtual incoming args rtx
        to vDRAP if stack realignment and DRAP is needed.
        (assign_parms): Collect parameter/return type alignment and
        contribute to stack_alignment_estimated.
        (locate_and_pad_parm): Likewise.
        (get_arg_pointer_save_area): Replace virtual_incoming_args_rtx
        with crtl->args.internal_arg_pointer.

        * function.h (rtl_data): Add new field drap_reg,
        max_used_stack_slot_alignment, stack_alignment_estimated,
        stack_realign_needed, need_drap, stack_realign_processed and
        stack_realign_finalized.
        (stack_realign_fp): New macro.
        (stack_realign_drap): Likewise.

        * global.c (compute_regsets): Frame pointer is needed when
        stack is realigned.  Can eliminate frame pointer when stack is
        realigned and dynamic realigned argument pointer isn't used.

        * reload1.c (update_eliminables):  Frame pointer is needed
        when stack is realigned.
        (init_elim_table): Can eliminate frame pointer when stack is
        realigned and dynamic realigned argument pointer isn't used.

        * rtl.h (assign_stack_local_1): Declare new funtion.

        * target-def.h (TARGET_UPDATE_STACK_BOUNDARY): New.
        (TARGET_GET_DRAP_RTX): Likewise.
        (TARGET_CALLS): Add TARGET_UPDATE_STACK_BOUNDARY and
        TARGET_GET_DRAP_RTX.

        * target.h (gcc_target): Add update_stack_boundary and get_drap_rtx.

        * tree-vectorizer.c (vect_can_force_dr_alignment_p): Replace
        STACK_BOUNDARY with MAX_STACK_ALIGNMENT.

2008-07-30  Xuepeng Guo  <xuepeng.guo@intel.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        * dwarf2out.c (dw_fde_struct): Add stack_realignment, drap_reg,
        vdrap_reg, stack_realign and drap_reg_saved.
        (add_cfi): Don't allow redefining CFA when DRAP is used.
        (reg_save): Handle stack alignment.
        (dwarf2out_frame_debug_expr): Add rules 16-20 to handle stack
        alignment.  Don't generate DWARF information for (set fp sp)
        when DRAP is used.
        (dwarf2out_begin_prologue): Initialize drap_reg and vdrap_reg
        to INVALID_REGNUM.
        (int_loc_descriptor): Move prototype forward.  Also define if
        DWARF2_UNWIND_INFO is true.
        (output_cfa_loc): Handle DW_CFA_expression.
        (build_cfa_aligned_loc): New.
        (based_loc_descr): Update assert for stack realign.  For local
        variables, use sp+offset when stack is aligned without drap and
        fp+offset when stack is aligned with drap.  For arguments, use
        cfa+offset when drap is used to align stack.

2008-07-30  Joey Ye  <joey.ye@intel.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_force_align_arg_pointer_string):
        Break long line.
        (ix86_gen_andsp): New.
        (ix86_user_incoming_stack_boundary): Likewise.
        (ix86_default_incoming_stack_boundary): Likewise.
        (ix86_incoming_stack_boundary): Likewise.
        (ix86_can_eliminate): Likewise.
        (find_drap_reg): Likewise.
        (ix86_update_stack_boundary): Likewise.
        (ix86_get_drap_rtx): Likewise.
        (ix86_finalize_stack_realign_flags): Likewise.
        (TARGET_UPDATE_STACK_BOUNDARY): Likewise.
        (TARGET_GET_DRAP_RTX): Likewise.
        (override_options): Overide option value for new options.
        (ix86_function_ok_for_sibcall): Remove check for
        force_align_arg_pointer.
        (ix86_handle_cconv_attribute): Likewise.
        (ix86_function_regparm): Likewise.
        (setup_incoming_varargs_64): Don't set stack_alignment_needed here.
        (ix86_va_start): Replace virtual_incoming_args_rtx with
        crtl->args.internal_arg_pointer.
        (ix86_select_alt_pic_regnum): Check DRAP register.
        (ix86_save_reg): Replace force_align_arg_pointer with drap_reg.
        (ix86_compute_frame_layout): Compute frame layout wrt stack
        realignment.
        (ix86_internal_arg_pointer): Just return virtual_incoming_args_rtx.
        (ix86_expand_prologue): Decide if stack realignment is needed
        and generate prologue code accordingly.
        (ix86_expand_epilogue): Generate epilogue code wrt stack
        realignment is really needed or not.
        
        * config/i386/i386.h (MAIN_STACK_BOUNDARY): New.
        (ABI_STACK_BOUNDARY): Likewise.
        (PREFERRED_STACK_BOUNDARY_DEFAULT): Likewise.
        (STACK_REALIGN_DEFAULT): Likewise.
        (INCOMING_STACK_BOUNDARY): Likewise.
        (MAX_STACK_ALIGNMENT): Likewise.
        (ix86_incoming_stack_boundary): Likewise.
        (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): Removed.
        (REAL_PIC_OFFSET_TABLE_REGNUM): Updated to use BX_REG.
        (CAN_ELIMINATE): Defined with ix86_can_eliminate.
        (machine_function): Remove force_align_arg_pointer.

        * config/i386/i386.md (BX_REG): New.
        (R13_REG): Likewise.

        * config/i386/i386.opt (mforce_drap): New.
        (mincoming-stack-boundary): Likewise.
        (mstackrealign): Add Init(-1).

        * config/i386/i386-protos.h (ix86_can_eliminate): New

2008-07-30  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/extend.texi: Update force_align_arg_pointer.

        * doc/invoke.texi: Document -mincoming-stack-boundary.  Update
        -mstackrealign.

        * doc/tm.texi (MAX_STACK_ALIGNMENT): Add macro.
        (INCOMING_STACK_BOUNDARY): Likewise.
        (TARGET_UPDATE_STACK_BOUNDARY): New target hook.
        (TARGET_GET_DRAP_RTX): Likewise.

2008-07-30  Andreas Schwab  <schwab@suse.de>

        PR rtl-optimization/36929
        * dse.c (replace_inc_dec): Use emit_insn_before instead of
        add_insn_before and fix argument order.
        (replace_inc_dec_mem): Handle NULL rtx.

2008-07-30  Andrew Jenner  <andrew@codesourcery.com>

        * config/arm/arm.c (arm_compute_static_chain_stack_bytes): New
        function.
        (arm_compute_initial_elimination_offset): Use it.
        (arm_compute_save_reg_mask): Include static chain save slot when
        calculating alignment.
        (arm_get_frame_offsets): Ditto.
        (thumb1_compute_save_reg_mask): Ensure we have a low register saved
        that we can use to decrement the stack when the stack decrement
        could be too big for an immediate value in a single insn.
        (thumb1_expand_prologue): Avoid using r12 for stack decrement.

2008-07-30  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/36967
        * tree-predcom.c (remove_stmt): Use gimple_assign_ssa_name_copy_p.
        Release defs of statements we remove.

2008-07-30  Nathan Froyd  <froydnj@codesourcery.com>

        * config/arm/arm.c (arm_expand_prologue): Use 0-length rtvec
        instead of NULL_RTVEC.

2008-07-30  Nathan Froyd  <froydnj@codesourcery.com>

        PR target/35866

        * config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Add clause for
        vector modes.

2008-07-30  Rafael Avila de Espindola  <espindola@google.com>

        * final.c (call_from_call_insn): New.
        (final_scan_insn): Call assemble_external on FUNCTION_DECLs.

2008-07-30  Paolo Bonzini  <bonzini@gnu.org>

        * configure.ac: Substitute ADA_CFLAGS.
        * configure: Regenerate.
        * config.host: Remove mention of pa/x-ada and pa/x-ada-hpux10 files.
        * Makefile.in: Remove mention of X_* variables.
        * config/pa/x-ada-hpux10: Remove.
        * config/pa/x-ada: Remove.

        * doc/fragments.texi: Update.

2008-07-30  Olivier Hainque  <hainque@adacore.com>

        * config/mips/irix-crti.asm: .hide __gcc_init and __gcc_fini.
        * config/mips/iris6.h (IRIX_SUBTARGET_LINK_SPEC, irix ld): Hide
        __dso_handle explicitly here.

2008-07-30  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 34389
        * c-typeck.c (build_binary_op): Encapsulate code into...
        * c-common.c (shorten_binary_op): ...this new function.
        (conversion_warning): Use the new function. Handle non-negative
        constant in bitwise-and.
        * c-common.h (shorten_binary_op): Declare.

2008-07-30  Olivier Hainque  <hainque@adacore.com>

        * scan.c (make_sstring_space): Add explicit conversions of
        allocator's return value.
        * fix-header.c (recognized_function): Likewise.

2008-07-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/cpp.texi: Update to GFDL 1.2.
        * doc/gcc.texi: Do not list GPL as Invariant Section.
        * doc/gccint.texi: Likewise.  Update copyright years.
        * doc/install.texi: Update copyright years.

2008-07-30  Alan Modra  <amodra@bigpond.net.au>

        PR target/36955
        * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Add
        a use of pic_offset_table_rtx for -msecure-plt __tls_get_addr calls.

2008-07-29  Jan Hubicka  <jh@suse.cz>

        * c-decl.c (merge_decls): Do not handle DECL_INLINE.
        (grokdeclarator): Likewise.
        * langhooks.c (lhd_warn_unused_global_decl): Use
        DECL_DECLARED_INLINE_P.
        * print-tree.c (print_node): Remove DECL_INLINE check.

2008-07-29  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/36945
        * tree-ssa-sccvn.h (copy_reference_ops_from_ref): Declare.
        * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Export.
        Record invariant addresses un-decomposed.
        (copy_reference_ops_from_call): Record reference call
        arguments properly.  Simplify.
        * tree-ssa-pre.c (create_component_ref_by_pieces_1): New
        helper split out from ...
        (create_component_ref_by_pieces): ... here.  Simplify.
        Prepare for recursive invocation for call arguments.
        (create_expression_by_pieces): Adjust call to
        create_component_ref_by_pieces.
        (compute_avail): Process operand 2 of reference ops.

2008-07-29  Richard Guenther  <rguenther@suse.de>

        * gimplify.c (gimplify_expr): Clear TREE_SIDE_EFFECTS for OBJ_TYPE_REF.

2008-07-29  Jakub Jelinek  <jakub@redhat.com>

        * c-format.c (check_format_types): Revert unwanted checkin.

2008-07-29  Jan Hubicka  <jh@suse.cz>

        * flags.h (flag_really_no_inline): Remove.
        * cgraph.c (cgraph_function_possibly_inlined_p): Simplify.
        * toplev.c (flag_really_no_inline): Remove.
        * c-cppbuiltin.c (c_cpp_builtins): Use flag_no_inline.
        * ipa-inline.c (cgraph_decide_inlining): Do not check flag_no_inline.
        (cgraph_decide_inlining_incrementally): Likewise.
        (compute_inline_parameters): Likewise.
        * opts.c (decode_options): Simplify.
        * c-opts.c (c_common_post_options): Do not set flag_no_inline.
        * common.opt (finline): Initialize to 1.
        * tree-inline.c (inlinable_function_p): Check flag_no_inline.

2008-07-29  Jan Hubicka  <jh@suse.cz>

        * predict.c (always_optimize_for_size_p): New function.
        (optimize_bb_for_size_p, optimize_bb_for_speed_p,
        optimize_edge_for_size_p, optimize_edge_for_speed_p,
        optimize_insn_for_size_p, optimize_insn_for_speed_p): New global
        functions.
        (rtl_profile_for_bb, rtl_profile_for_edge, rtl_default_profile): New.
        * function.c (prepare_function_start): Set default profile.
        * function.h (rtl_data): Add maybe_hot_insn_p.
        * cfgexpand.c (expand_gimple_basic_block): Set RTL profile.
        (construct_exit_block): Likewise.
        (tree_expand_cfg): Likewise.
        * basic-block.h
        (optimize_bb_for_size_p, optimize_bb_for_speed_p,
        optimize_edge_for_size_p, optimize_edge_for_speed_p,
        optimize_insn_for_size_p, optimize_insn_for_speed_p): Declare.
        (rtl_profile_for_bb, rtl_profile_for_edge, default_rtl_profile):
        Declare.

2008-07-29  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 34985
        * c-decl.c (merge_decls): Merge USED flags.

2008-07-29  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_gimplify_va_arg_expr): Unshare the addr,
        valist, next_fp, next_fp_tmp, next_fp_limit, next_o, next_o_limit,
        next_stack, lab_false and lab_over trees.

2008-07-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/36957
        * tree-flow.h (tree_ssa_useless_type_conversion): Remove.
        (useless_type_conversion_p): Remove.
        (types_compatible_p): Remove.
        * gimple.h (tree_ssa_useless_type_conversion): Declare.
        (useless_type_conversion_p): Declare.
        (types_compatible_p): Declare.
        (gimple_expr_type): Return the base type only if it is
        trivially convertible to the subtype.

2008-07-28  Andreas Tobler  <a.tobler@schweiz.org>

        * configure.ac: Use the m4_do macro to concatenate the warnings into
        one string in ACX_PROG_CC_WARNING_OPTS,
        ACX_PROG_CC_WARNING_ALMOST_PEDANTIC and ACX_PROG_CC_WARNINGS_ARE_ERRORS.
        * configure: Regenerate.

2008-07-28  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (insert_into_preds_of_block): Remove dead code.
        (insert_fake_stores): Remove.
        (realify_fake_stores): Likewise.
        (execute_pre): Remove dead code.
        * tree-ssa-structalias.c (get_constraint_for_1): Remove tcc_unary case.
        (find_func_aliases): Deal with it here instead.
        Re-enable gcc_unreachable call.

2008-07-28  Richard Guenther  <rguenther@suse.de>

        Merge from gimple-tuples-branch.

        * ChangeLog.tuples: ChangeLog from gimple-tuples-branch.
        * gimple.def: New file.
        * gsstruct.def: Likewise.
        * gimple-iterator.c: Likewise.
        * gimple-pretty-print.c: Likewise.
        * tree-gimple.c: Removed.  Merged into ...
        * gimple.c: ... here.  New file.
        * tree-gimple.h: Removed.  Merged into ...
        * gimple.h: ... here.  New file.

        * Makefile.in: Add dependencies on GIMPLE_H and tree-iterator.h.
        * configure.ac: Added support for ENABLE_GIMPLE_CHECKING and the
        --enable-checking=gimple flag.
        * config.in: Likewise.
        * configure: Regenerated.

        * tree-ssa-operands.h: Tuplified.
        * tree-vrp.c: Likewise.
        * tree-loop-linear.c: Likewise.
        * tree-into-ssa.c: Likewise.
        * tree-ssa-loop-im.c: Likewise.
        * tree-dump.c: Likewise.
        * tree-complex.c: Likewise.
        * cgraphbuild.c: Likewise.
        * tree-ssa-threadupdate.c: Likewise.
        * tree-ssa-loop-niter.c: Likewise.
        * tree-pretty-print.c: Likewise.
        * tracer.c: Likewise.
        * gengtype.c: Likewise.
        * tree-loop-distribution.c: Likewise.
        * tree-ssa-loop-unswitch.c: Likewise.
        * cgraph.c: Likewise.
        * cgraph.h: Likewise.
        * tree-ssa-loop-manip.c: Likewise.
        * value-prof.c: Likewise.
        * tree-ssa-loop-ch.c: Likewise.
        * tree-tailcall.c: Likewise.
        * value-prof.h: Likewise.
        * tree.c: Likewise.
        * tree.h: Likewise.
        * tree-pass.h: Likewise.
        * ipa-cp.c: Likewise.
        * tree-scalar-evolution.c: Likewise.
        * tree-scalar-evolution.h: Likewise.
        * target.h: Likewise.
        * lambda-mat.c: Likewise.
        * tree-phinodes.c: Likewise.
        * diagnostic.h: Likewise.
        * builtins.c: Likewise.
        * tree-ssa-alias-warnings.c: Likewise.
        * cfghooks.c: Likewise.
        * fold-const.c: Likewise.
        * cfghooks.h: Likewise.
        * omp-low.c: Likewise.
        * tree-ssa-dse.c: Likewise.
        * ipa-reference.c: Likewise.
        * tree-ssa-uncprop.c: Likewise.
        * toplev.c: Likewise.
        * tree-gimple.c: Likewise.
        * tree-gimple.h: Likewise.
        * tree-chrec.c: Likewise.
        * tree-chrec.h: Likewise.
        * tree-ssa-sccvn.c: Likewise.
        * tree-ssa-sccvn.h: Likewise.
        * cgraphunit.c: Likewise.
        * tree-ssa-copyrename.c: Likewise.
        * tree-ssa-ccp.c: Likewise.
        * tree-ssa-loop-ivopts.c: Likewise.
        * tree-nomudflap.c: Likewise.
        * tree-call-cdce.c: Likewise.
        * ipa-pure-const.c: Likewise.
        * c-format.c: Likewise.
        * tree-stdarg.c: Likewise.
        * tree-ssa-math-opts.c: Likewise.
        * tree-ssa-dom.c: Likewise.
        * tree-nrv.c: Likewise.
        * tree-ssa-propagate.c: Likewise.
        * ipa-utils.c: Likewise.
        * tree-ssa-propagate.h: Likewise.
        * tree-ssa-alias.c: Likewise.
        * gimple-low.c: Likewise.
        * tree-ssa-sink.c: Likewise.
        * ipa-inline.c: Likewise.
        * c-semantics.c: Likewise.
        * dwarf2out.c: Likewise.
        * expr.c: Likewise.
        * tree-ssa-loop-ivcanon.c: Likewise.
        * predict.c: Likewise.
        * tree-ssa-loop.c: Likewise.
        * tree-parloops.c: Likewise.
        * tree-ssa-address.c: Likewise.
        * tree-ssa-ifcombine.c: Likewise.
        * matrix-reorg.c: Likewise.
        * c-decl.c: Likewise.
        * tree-eh.c: Likewise.
        * c-pretty-print.c: Likewise.
        * lambda-trans.c: Likewise.
        * function.c: Likewise.
        * langhooks.c: Likewise.
        * ebitmap.h: Likewise.
        * tree-vectorizer.c: Likewise.
        * function.h: Likewise.
        * langhooks.h: Likewise.
        * tree-vectorizer.h: Likewise.
        * ipa-type-escape.c: Likewise.
        * ipa-type-escape.h: Likewise.
        * domwalk.c: Likewise.
        * tree-if-conv.c: Likewise.
        * profile.c: Likewise.
        * domwalk.h: Likewise.
        * tree-data-ref.c: Likewise.
        * tree-data-ref.h: Likewise.
        * tree-flow-inline.h: Likewise.
        * tree-affine.c: Likewise.
        * tree-vect-analyze.c: Likewise.
        * c-typeck.c: Likewise.
        * gimplify.c: Likewise.
        * coretypes.h: Likewise.
        * tree-ssa-phiopt.c: Likewise.
        * calls.c: Likewise.
        * tree-ssa-coalesce.c: Likewise.
        * tree.def: Likewise.
        * tree-dfa.c: Likewise.
        * except.c: Likewise.
        * except.h: Likewise.
        * cfgexpand.c: Likewise.
        * tree-cfgcleanup.c: Likewise.
        * tree-ssa-pre.c: Likewise.
        * tree-ssa-live.c: Likewise.
        * tree-sra.c: Likewise.
        * tree-ssa-live.h: Likewise.
        * tree-predcom.c: Likewise.
        * lambda.h: Likewise.
        * tree-mudflap.c: Likewise.
        * ipa-prop.c: Likewise.
        * print-tree.c: Likewise.
        * tree-ssa-copy.c: Likewise.
        * ipa-prop.h: Likewise.
        * tree-ssa-forwprop.c: Likewise.
        * ggc-page.c: Likewise.
        * c-omp.c: Likewise.
        * tree-ssa-dce.c: Likewise.
        * tree-vect-patterns.c: Likewise.
        * tree-ssa-ter.c: Likewise.
        * tree-nested.c: Likewise.
        * tree-ssa.c: Likewise.
        * lambda-code.c: Likewise.
        * tree-ssa-loop-prefetch.c: Likewise.
        * tree-inline.c: Likewise.
        * tree-inline.h: Likewise.
        * tree-iterator.c: Likewise.
        * tree-optimize.c: Likewise.
        * tree-ssa-phiprop.c: Likewise.
        * tree-vect-transform.c: Likewise.
        * tree-object-size.c: Likewise.
        * tree-outof-ssa.c: Likewise.
        * cfgloop.c: Likewise.
        * system.h: Likewise.
        * tree-profile.c: Likewise.
        * cfgloop.h: Likewise.
        * c-gimplify.c: Likewise.
        * c-common.c: Likewise.
        * tree-vect-generic.c: Likewise.
        * tree-flow.h: Likewise.
        * c-common.h: Likewise.
        * basic-block.h: Likewise.
        * tree-ssa-structalias.c: Likewise.
        * tree-switch-conversion.c: Likewise.
        * tree-ssa-structalias.h: Likewise.
        * tree-cfg.c: Likewise.
        * passes.c: Likewise.
        * ipa-struct-reorg.c: Likewise.
        * ipa-struct-reorg.h: Likewise.
        * tree-ssa-reassoc.c: Likewise.
        * cfgrtl.c: Likewise.
        * varpool.c: Likewise.
        * stmt.c: Likewise.
        * tree-ssanames.c: Likewise.
        * tree-ssa-threadedge.c: Likewise.
        * langhooks-def.h: Likewise.
        * tree-ssa-operands.c: Likewise.
        * config/alpha/alpha.c: Likewise.
        * config/frv/frv.c: Likewise.
        * config/s390/s390.c: Likewise.
        * config/m32c/m32c.c: Likewise.
        * config/m32c/m32c-protos.h: Likewise.
        * config/spu/spu.c: Likewise.
        * config/sparc/sparc.c: Likewise.
        * config/i386/i386.c: Likewise.
        * config/sh/sh.c: Likewise.
        * config/xtensa/xtensa.c: Likewise.
        * config/stormy16/stormy16.c: Likewise.
        * config/ia64/ia64.c: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * config/pa/pa.c: Likewise.
        * config/mips/mips.c: Likewise.

2008-07-28  Simon Baldwin  <simonb@google.com>

        * c-pragma.c (handle_pragma_message): New function.
        (init_pragma): Register handle_pragma_message.
        * doc/extend.texi (Diagnostic Pragmas): Added #pragma message
        documentation.

2008-07-27  Victor Kaplansky  <victork@il.ibm.com>

        PR tree-optimization/35252
        * tree-vect-analyze.c (vect_build_slp_tree): Make IMAGPART_EXPR and
        REALPART_EXPR to be considered as same load operation.

2008-07-27  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/36830
        * tree-ssa-sccvn.c (vn_reference_op_compute_hash): Hash operand #2.
        (expressions_equal_p): Return false if only one operand is null.

2008-07-26  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (powerpc-*-netbsd*): Remove redundant texinfo
        version requirements.

2008-07-26  Olivier Hainque  <hainque@adacore.com>

        * collect2.c (symkind): New enum.  Symbol kinds we care about.
        (is_ctor_dtor): Return symkind instead of int.  Adjust prototype,
        code and head comment accordingly.
        (scan_prog_file): Use symkind names instead of bare integers.

2008-07-25  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (cgraph_function_possibly_inlined_p): Do not rely on
        DECL_INLINE.
        * cgraphunit.c (record_cdtor_fn): Do not initialize DECL_INLINE
        (cgraph_preserve_function_body_p): Do not rely on DECL_INLINE.
        * dojump.c (clear_pending_stack_adjust): Likewise.
        * print-tree.c (print_node): Ignore DECL_INLINE.
        * tree-inline.c (inlinable_function_p): Likewise.

2008-07-25  Michael Meissner  <gnu@the-meissners.org>

        * doc/extend.texi (hot attribute): Document that the hot attribute
        turns on -O3 for some ports.
        (cold attribute): Document that the cold attribute turns on -Os
        for some ports

        * doc/tm.texi (OPTIMIZATION_OPTIONS): Update documentation to
        reflect function specific option support.

        * target.h (struct target_option_hooks): Add fields to say whether
        the cold attribute implies -Os and the hot attribute implies -O3.

        * target-def.h (TARGET_OPTION_COLD_ATTRIBUTE_SETS_OPTIMIZATION):
        By default, do not turn on -Os for cold functions.
        (TARGET_OPTION_COLD_ATTRIBUTE_SETS_OPTIMIZATION): By default, do
        not turn on -O3 for hot functions.

        * c-common.c (handle_hot_attribute): Use target hook to determine
        if hot functions should enable -O3.
        (handle_cold_attribute): Use target hook to determine if cold
        functions should enable -Os.

        * config/i386/i386.c (ix86_target_string): Add -m3dnowa support.
        (override_options): Move disable scheduling to
        optimization_options.
        (optimization_options): Disable scheduling here, not
        override_options.
        (TARGET_OPTION_COLD_ATTRIBUTE_SETS_OPTIMIZATION): Define.
        (TARGET_OPTION_HOT_ATTRIBUTE_SETS_OPTIMIZATION): Define.

        * config/ia64/ia64.c (ia64_override_options): Move setting
        scheduling flags to ia64_optimization_options.
        (ia64_optimization_options): Disable scheduling options here, and
        not in ia64_override_options.
        (TARGET_OPTION_COLD_ATTRIBUTE_SETS_OPTIMIZATION): Define.
        (TARGET_OPTION_HOT_ATTRIBUTE_SETS_OPTIMIZATION): Define.

2008-07-25  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/36936
        * config/i386/i386.c (override_options): Don't clear TARGET_CMOVE.

2008-07-25  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/36926
        * ipa-prop.c (ipa_analyze_call_uses): Call
        ipa_is_ssa_with_stmt_def instead of SSA_NAME_IS_DEFAULT_DEF.

2008-07-25  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/iwmmxt.md (movv8qi_internal, movv4hi_internal,
        movv2si_internal): Add mem = reg alternative.

2008-07-25  Andreas Tobler  <a.tobler@schweiz.org>

        PR bootstrap/36918
        * config/sparc/sparc.h (DEFAULT_PCC_STRUCT_RETURN): Define
        DEFAULT_PCC_STRUCT_RETURN to 127.

2008-07-24  Jan Hubicka  <jh@suse.cz>

        * cgraphbuild.c (record_reference): Drop non-unit-at-a-time code.
        (build_cgraph_edges): Likewise.
        * cgraph.c (cgraph_node): Do not update assembler hash.
        (cgraph_remove_node): Drop non-unit-at-a-time code.
        * tree-pass.h (pass_O0_always_inline): Remove.
        * ipa-reference.c (gate_reference): Remove unit-at-a-time check.
        * toplev.c (process_options): Flag unit-at-a-time does not imply
        no section anchors.
        * cgraphunit.c: Update comments.
        (decide_is_function_needed): Drop non-unit-at-a-time mode.
        (cgraph_assemble_pending_functions): Remove.
        (cgraph_reset_node): Drop non-unit-at-a-time code.
        (cgraph_finalize_function): Likewise.
        (cgraph_analyze_function): Likewise.
        (cgraph_finalize_compilation_unit): Likewise.
        (cgraph_expand_function): Likewise.
        (cgraph_optimize): Likesise.
        (save_inline_function_body): Likewise.
        * ipa-pure-const.c (gate_pure_const): Drop flag_unit_at_a_time check.
        * tree-ssa-alias.c (maybe_be_aliased): Likewise.
        * ipa-inline.c: Update comments.
        (enum inlining_mode): remove INLINE_SPEED.
        (cgraph_clone_inlined_nodes): Drop unit-at-a-time check.
        (cgraph_mark_inline_edge): Likewise.
        (try_inline): Likewise.
        (cgraph_decide_inlining_incrementally): Likewise.
        (cgraph_gate_inlining): Remove.
        (cgraph_early_inlining): Remove flag_unit_at_a_time checks.
        (cgraph_gate_early_inlining): Likewise.
        (gate_inline_passes): Remove.
        (pass_inline_parameters, pass_ipa_inline): Remove gates.
        (cgraph_gate_O0_always_inline, cgraph_O0_always_inline,
        pass_O0_always_inline): Remove.
        * c-pch.c (c_pch_matching): Remove -funit-at-a-time.
        * dwarf2out.c (reference_to_unused): Remove flag_unit_at_a_time check.
        * opts.c (no_unit_at_a_time_default): Remove.
        (decode_options): Remove flag_unit_at_a_time reset and warning.
        * opts.h (no_unit_at_a_time_default): Remove.
        * c-decl.c (diagnose_mismatched_decls): Do not require inline keyword
        early in GNU dialect.
        (merge_decls): Update comment; drop unit-at-a-time check.
        (finish_decl): Likewise.
        (grok_declaration): Remove flag_inline_trees code.
        (finish_functions): Return on function returning non-void on all
        statics.
        * ipa-tye-escape.c (gate_type_escape_vars): Remove.
        * cfgexpand.c (expand_one_static_var): Remove.
        (expand_one_var): Remove expand_one_static_var call.
        (expand_used_vars_for_block): Remove flag_unit_a_time check.
        * c-opts.c (c_common_post_options): Remove flag_inline_trees code
        and flag_unit_at_a-time compatibility checks.
        * varasm.c (assemble_alias): Remove flag_unit_at_a_time check.
        * tree-inline.c (flag_inline_trees): Remove.
        (inlinable_function_p): Don't check it.
        (expand_call_inline): Remove non-unit-at-a-time code.
        * tree-inline.h (flag_inline_trees): Remove.
        * tree-optimize.c (execute_early_local_optimizations): Remove
        unit-at-a-time checks.
        (tree_rest_of_compilation): Likewise.
        * combine.c (setup_incoming_promotions): Likewise.
        * tree-profile.c (tree_gen_ic_func_profiler): Likewise.
        * tree-ssa-structalias.c (delete_points_to_sets): Likewise.
        * passes.c (pass_inline_parameters): Update comments; remove
        O0_alwaysinline pass.
        (execute_one_ipa_transform_pass): Do not reset in_gimple_form.
        (execute_one_pass): Likewise.
        * i386.c (ix86_function_regparm): Remove unit-at-a-time check.
        (ix86_function_sseregparm): Likewise.
        * arm.c (arm_function_in_section_p): Likewise.
        * bfin.c (bfin_load_pic_reg, bfin_function_ok_for_sibcall): Likewise.
        * varpool.c: Update comments.
        (decide_is_variable_needed): Remove unit-at-a-time checks.
        (varpool_finalize_decl): Likewise.

2008-07-24  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.h (OPTIMIZATION_OPTIONS): Set flag_omit_frame_pointer
        to 2 instead of -1.
        (OVERRIDE_OPTIONS): Check if flag_omit_frame_pointer is equal to 2.

2008-07-24  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/i386.c (get_dllimport_decl): Treat user_label_prefix for
        imp symbol extension.

        2008-07-23  Ian Lance Taylor  <iant@google.com>

        * tree-vrp.c (infer_value_range): Ignore asm statements when
        looking for memory accesses for -fdelete-null-pointer-checks.

2008-07-24  Ben Elliston  <bje@au.ibm.com>

        * config/spu/spu-c.c (__vector_keyword): New variable.
        (vector_keyword): Likewise.
        (spu_categorize_keyword): New function.
        (spu_macro_to_expand): Likewise.
        (spu_cpu_cpp_builtins): Enable context-sensitive macros if not
        compiling an ISO C dialect.

2008-07-24  Ben Elliston  <bje@au.ibm.com>

        * config/rs6000/rs6000-c.c: Move GTY(()) markers to match
        conventional usage.

2008-07-23  Aaron W. LaFramboise  <aaronavay62@aaronwl.com>

        * configure: Regenerate.
        * configure.ac: Require texinfo 4.7.
        * doc/install.texi: Document texinfo 4.7 requirement.

2008-07-23  Martin Jambor  <mjambor@suse.cz>

        * ipa-cp.c (ipcp_print_edge_profiles): Test for node->analyzed
        rather than for DECL_SAVED_TREE.
        * ipa-prop.c: Include diagnostic.h.
        (ipa_check_stmt_modifications): Check LHS of GIMPLE_MODIFY_EXPRs
        thoroughly.
        (ipa_detect_param_modifications): Function rewritten from scratch.
        (ipa_compute_jump_functions): Changed accesses to modification flags.
        (ipa_free_node_params_substructures): Update flags destruction.
        (ipa_node_duplication_hook): Update flags duplication.
        (ipa_print_all_params_modified): Updated flag access.
        * ipa-prop.h (struct ipa_param_flags): New structure.
        (struct ipa_node_params): New field modification_analysis_done,
        modified_flags changed into param_flags.
        (ipa_is_ith_param_modified): Changed to use new flags.
        * Makefile.in (ipa-prop.o): Add $(DIAGNOSTIC_H) to dependencies.

        * ipa-prop.c (ipa_print_all_jump_functions): Moved here from
        ipa-cp.c and split into two functions.
        (ipa_print_node_jump_functions): New function.
        (compute_scalar_jump_functions): New function.
        (type_like_member_ptr_p): New function.
        (compute_pass_through_member_ptrs): New function.
        (fill_member_ptr_cst_jump_function): New function.
        (determine_cst_member_ptr): New function.
        (compute_cst_member_ptr_arguments): New function.
        (ipa_compute_jump_functions): Complete rewrite.
        * ipa-prop.h (enum jump_func_type): Make explicit that we depend
        on IPA_UNKNOWN being zero. Added value IPA_CONST_MEMBER_PTR.
        (struct ipa_member_ptr_cst): New structure.
        (union jump_func_value): New field member_cst.
        * ipa-cp.c (ipcp_lat_is_insertable): New function.
        (ipcp_lattice_from_jfunc): Produces bottom lattices for unhandled
        jump function types.
        (ipcp_print_all_lattices): Slight fprintf rearrangement.
        (ipcp_print_all_structures): Call ipa_print_all_jump_functions
        instead of ipcp_print_all_jump_functions.
        (ipcp_insert_stage): Use ipcp_lat_is_insertable, create replace maps
        only for replacable scalars.

        * doc/invoke.texi (Optimize options): Add description of
        -findirect-inlining.
        * common.opt (flag_indirect_inlining): New flag.
        * opts.c (decode_options): Set flag_indirect_inlining when
        optimize >= 3.

        * ipa-inline.c: Include ipa-prop.h.
        (inline_indirect_intraprocedural_analysis): New function.
        (inline_generate_summary): Allocate parameter and argument info
        structures, call inline_indirect_intraprocedural_analysis on each
        node when doing indirect inlining and deallocate indirect inlining
        data structures in the end.
        * ipa-prop.c (ipa_create_param_decls_array): Return if already done.
        (free_all_ipa_structures_after_iinln): New function.
        (free_all_ipa_structures_after_ipa_cp): Checks whether iinln will be
        done.
        * Makefile.in (ipa-inline.o): Added $(IPA_PROP_H) to dependencies.

        * cgraphbuild.c (compute_call_stmt_bb_frequency): New function.
        (build_cgraph_edges): Call compute_call_stmt_bb_frequency instead
        of computing the frequency separately.
        (rebuild_cgraph_edges): Call compute_call_stmt_bb_frequency instead
        of computing the frequency separately.
        * ipa-cp.c (ipcp_print_all_structures): Replace a call to
        ipa_print_all_param_modified with a call to ipa_print_all_param_flags.
        * ipa-prop.c (ipa_get_member_ptr_load_param): New function.
        (ipa_get_stmt_member_ptr_load_param): New function.
        (ipa_is_ssa_with_stmt_def): New function.
        (ipa_note_param_call): New function.
        (ipa_analyze_call_uses): New function.
        (ipa_analyze_stmt_uses): New function.
        (ipa_analyze_params_uses): New function.
        (ipa_free_node_params_substructures): Also free the param_calls linked
        list.
        (ipa_node_duplication_hook): Also duplicate the param_calls linked list.
        (ipa_print_node_param_flags): New function.
        (ipa_print_all_params_modified): Renamed to ipa_print_all_param_flags.
        (ipa_print_all_param_flags): Calls ipa_print_node_param_flags.
        * ipa-prop.h (struct ipa_param_flags): New field called.
        (struct ipa_param_call_note): New structure.
        (struct ipa_node_params): New fields param_calls and
        uses_analysis_done.
        (ipa_is_ith_param_called): New function.
        * ipa-inline.c (inline_indirect_intraprocedural_analysis): Call
        ipa_analyze_params_uses and dump parameter flags.

        * ipa-inline.c (cgraph_decide_recursive_inlining): Call
        ipa_propagate_indirect_call_infos if performing indirect inlining,
        pass a new parameter new_edges to it.
        (add_new_edges_to_heap): New fucntion.
        (cgraph_decide_inlining_of_small_functions): New vector
        new_indirect_edges for newly found indirect edges , call
        ipa_propagate_indirect_call_infos after inlining.
        (cgraph_decide_inlining): Call ipa_propagate_indirect_call_infos after
        inlining if performing indirect inlining.  Call
        free_all_ipa_structures_after_iinln when doing so too.
        (inline_generate_summary): Do not call
        free_all_ipa_structures_after_iinln here.
        * ipa-prop.c (update_jump_functions_after_inlining): New function.
        (print_edge_addition_message): New function.
        (update_call_notes_after_inlining): New function.
        (propagate_info_to_inlined_callees): New function.
        (ipa_propagate_indirect_call_infos): New function.
        * ipa-prop.h: Include cgraph.h
        (struct ipa_param_call_note): Fields reordered, new field processed.
        * cgraph.h (cgraph_edge): Shrink loop_nest field to 31 bits, add a new
        flag indirect_call.
        * cgraphunit.c (verify_cgraph_node): Allow indirect edges not to have
        rediscovered call statements.
        * cgraph.c (cgraph_create_edge): Initialize indirect_call to zero.
        (dump_cgraph_node): Dump also the indirect_call flag.
        (cgraph_clone_edge): Copy also the indirect_call flag.
        * tree-inline.c (copy_bb): Do not check for fndecls from call
        expressions, check for edge availability when moving clones.
        (get_indirect_callee_fndecl): New function.
        (expand_call_inline): If callee declaration is not apprent from
        the statement, try calling get_indirect_callee_fndecl.  Do not
        issue warnings or call sorry when not inlinings an indirect edge.
        * Makefile.in (IPA_PROP_H): Added $(CGRAPH_H) to dependencies.

        * ipa-prop.c (ipa_print_node_param_flags): Make the dump format a
        bit more frandly to matching.
        * testsuite/g++.dg/ipa/iinline-1.C: New testcase.
        * testsuite/gcc.dg/ipa/iinline-1.c: New testcase.
        * testsuite/gcc.dg/ipa/modif-1.c: New testcase.

2008-07-23  Michael Meissner  <gnu@the-meissners.org>

        PR 36907
        * opth-gen.awk: Suppress function specific features when building
        target libraries.
        * optc-gen.awk: Ditto.

2008-07-23  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR 35058
        * diagnostic.c (pedwarn): Add opt parameter.
        (pedwarn0): New.
        * c-tree.h (pedwarn_init): Add opt parameter.
        (pedwarn_c90): Likewise.
        (pedwarn_c99): Likewise.
        * c-errors.c (pedwarn_c99): Likewise.
        (pedwarn_c90): Likewise.
        * toplev.h (pedwarn): Update declaration.
        (pedwarn0): Declare.
        * c-lex.c: All calls to pedwarn changed.
        * builtins.c: All calls to pedwarn changed.
        * toplev.c: All calls to pedwarn changed.
        * c-decl.c: All calls to pedwarn changed.
        * c-typeck.c: All calls to pedwarn changed.
        * c-common.c: All calls to pedwarn changed.
        * c-parser.c: All calls to pedwarn changed.

2008-07-23  Michael Meissner  <gnu@the-meissners.org>
            Karthik Kumar  <karthikkumar@gmail.com>

        * attribs.c (file scope): Include c-common.h.
        (decl_attributes): Add support for #pragma GCC optimize and
        #pragma GCC option.

        * targhooks.c (default_can_inline_p): New function that is the
        default for the TARGET_CAN_INLINE_P target hook.

        * targhooks.h (default_can_inline_p): Add declaration.

        * tree.c (cl_optimization_node): New static tree for building
        OPTIMIZATION_NODE tree.
        (cl_target_option_node): New static tree for building
        TARGET_OPTION_NODE tree.
        (cl_option_hash_table): New hash table for hashing
        OPTIMIZATION_NODE and TARGET_OPTION_NODE trees.
        (cl_option_hash_hash): New function to provide the hash value for
        OPTIMIZATION_NODE and TARGET_OPTION_NODE trees.
        (cl_option_hash_eq): New function to provide an equality test for
        OPTIMIZATION_NODE and TARGET_OPTION_NODE trees.
        (tree_code_size): Add support for OPTIMIZATION_NODE and
        TARGET_OPTION_NODE trees.
        (tree_code_structure): Add support for OPTIMIZATION_NODE and
        TARGET_OPTION_NODE trees.
        (build_optimization_node): Build a tree that has all of the
        current optimization options.
        (build_target_option_node): Build a tree that has the target
        options that might be changed on a per function basis.

        * tree.h (file scope): Include options.h.
        (DECL_FUNCTION_SPECIFIC_TARGET): New accessor macro.
        (DECL_FUNCTION_SPECIFIC_OPTIMIZATION): Ditto.
        (TREE_OPTIMIZATION): Ditto.
        (TREE_TARGET_SPECIFIC): Ditto.
        (struct tree_function_decl): Add fields for remembering the
        current optimization options and target specific options.
        (struct tree_optimization_option): New tree variant that remembers
        the optimization options.
        (struct tree_target_option): New tree variant that remembers the
        target specific flags that might change for compiling a particular
        function.
        (union tree_node): Include tree_optimization_option and
        tree_target_option fields.
        (enum tree_index): Add TI_OPTIMIZATION_DEFAULT,
        TI_OPTIMIZATION_CURRENT, TI_OPTIMIZATION_COLD,
        TI_OPTIMIZATION_HOT, TI_TARGET_OPTION_DEFAULT,
        TI_TARGET_OPTION_CURRENT, TI_CURRENT_OPTION_PRAGMA,
        TI_CURRENT_OPTIMIZE_PRAGMA entries for saving function specific
        optimization and target options.
        (optimization_default_node): New macro to refer to global_trees
        field.
        (optimization_current_node): Ditto.
        (optimization_cold_node): Ditto.
        (optimization_hot_node): Ditto.
        (target_option_default_node): Ditto.
        (target_option_current_node): Ditto.
        (current_option_pragma): Ditto.
        (current_optimize_pragma): Ditto.

        * target.h (struct gcc_target): Add valid_option_attribute_p,
        target_option_save, target_option_restore, target_option_print,
        target_option_pragma_parse, and can_inline_p hooks.

        * toplev.h (parse_optimize_options): Add declaration.
        (fast_math_flags_struct_set_p): Ditto.

        * c-cppbuiltin.c (c_cpp_builtins_optimize_pragma): New function to
        adjust the current __OPTIMIZE__, etc. macros when #pragma GCC
        optimize is used.

        * ipa-inline.c (cgraph_decide_inlining_of_small_function): Call
        tree_can_inline_p hook to see if one function can inline another.
        (cgraph_decide_inlining): Ditto.
        (cgraph_decide_inlining_incrementally): Ditto.

        * opts.c (decode_options): Add support for running multiple times
        to allow functions with different target or optimization options
        than was specified on the command line.
        (fast_math_flags_struct_set_p): New function that is similar to
        fast_math_flags_set_p, except it uses the values in the
        cl_optimization structure instead of global variables.

        * optc-gen.awk: Add support for TargetSave to allow a back end to
        declare new fields that need to be saved when using function
        specific options.  Include flags.h and target.h in the options.c
        source.  Add support for Save to indicate which options can be set
        for individual functions.  Generate cl_optimize_save,
        cl_optimize_restore, cl_optimize_print, cl_target_option_save,
        cl_target_option_restore, cl_target_option_print functions to
        allow functions to use different optimization or target options.

        * opt-functions.awk (var_type_struct): Return the type used for
        storing the field in a structure.

        * opth-gen.awk: Add support for TargetSave to allow a back end to
        declare new fields that need to be saved when using function
        specific options.  Add support for Save to indicate which options
        can be set for individual functions.  Only generate one extern for
        Mask fields.  Generate cl_optimization and cl_target_option
        structures to remember optimization and target options.

        * treestruct.def (TS_OPTIMIZATION): Add support for garbage
        collecting new tree nodes.
        (TS_TARGET_OPTION): Ditto.

        * c-decl.c (merge_decls): Merge function specific target and
        optimization options.

        * function.c (invoke_set_current_function_hook): If the function
        uses different optimization options, change the global variables
        to reflect this.

        * coretypes.h (struct cl_optimization): Add forward reference.
        (struct cl_target_option): Ditto.

        * c-pragma.c (option_stack): New static vector to remember the
        current #pragma GCC option stack.
        (handle_pragma_option): New function to support #pragma GCC option
        to change target options.
        (optimize_stack): New static vector to remember the current
        #pragma GCC optimize stack.
        (handle_pragma_optimize): New function to support #pragma GCC
        optimize to change optimization options.
        (init_pragma): Add support for #pragma GCC optimize and #pragma
        GCC option.

        * tree.def (OPTIMIZATION_NODE): New tree code for remembering
        optimization options.
        (TARGET_OPTION_NODE): New tree code for remembering certain target
        options.

        * print-tree.c (print_node): Add support for OPTIMIZATION_NODE and
        TARGET_OPTION_NODE trees.

        * common.opt (-O): Add Optimization flag.
        (-Os): Ditto.
        (-fmath-errno): Ditto.
        (-falign-functions): Add UInteger flag to make sure flag gets full
        int in cl_optimization structure.
        (-falign-jumps): Ditto.
        (-falign-labels): Ditto.
        (-falign-loops): Ditto.
        (-fsched-stalled-insns): Ditto.
        (-fsched-stalled-insns-dep): Ditto.

        * target-def.h (TARGET_VALID_OPTION_ATTRIBUTE_P): Add default
        definition.
        (TARGET_OPTION_SAVE): Ditto.
        (TARGET_OPTION_RESTORE): Ditto.
        (TARGET_OPTION_PRINT): Ditto.
        (TARGET_OPTION_PRAGMA_PARSE): Ditto.
        (TARGET_CAN_INLINE_P): Ditto.
        (TARGET_INITIALIZER): Add new hooks.

        * tree-inline.c (tree_can_inline_p): New function to determine
        whether one function can inline another.  Check if the functions
        use compatible optimization options, and also call the backend
        can_inline_p hook.

        * tree-inline.h (tree_can_inline_p): Add declaration.

        * c-common.c (c_common_attribute): Add support for option and
        optimize attributes.
        (handle_option_attribute): Add support for the option attribute to
        allow the user to specify different target options for compiling a
        specific function.
        (handle_optimize_attribute): Add support for the optimize
        attribute to allow the user to specify different optimization
        options for compiling a specific function.
        (handle_hot_attribute): Turn on -O3 optimization for this one
        function if it isn't the default optimization level.
        (handle_cold_attribute): Turn on -Os optimization for this one
        function if it insn't the default optimization.
        (const_char_p): New const char * typedef.
        (optimize_args): New static vector to remember the optimization
        arguments.
        (parse_optimize_options): New function to set up the optimization
        arguments from either the optimize attribute or #pragma GCC optimize.

        * c-common.h (c_cpp_builtins_optimize_pragma): Add declaration.
        (builtin_define_std): Ditto.

        * config.gcc (i[3467]86-*-*): Add i386-c.o to C/C++ languages.
        Add t-i386 Makefile fragment to add i386-c.o and i386.o dependencies.
        (x86_64-*-*): Ditto.

        * Makefile.in (TREE_H): Add options.h.
        (options.o): Add $(TARGET_H) $(FLAGS_H) dependencies.

        * doc/extend.texi (option attribute): Document new attribute.
        (optimize attribute): Ditto.
        (hot attribute): Document hot attribute sets -O3.
        (cold attribute): Document cold attribute sets -Os.
        (#pragma GCC option): Document new pragma.
        (#pragma GCC optimize): Ditto.

        * doc/options.texi (TargetSave): Document TargetSave syntax.
        (UInteger): Document UInteger must be used for certain flags.
        (Save): Document Save option to create target specific options
        that can be saved/restored on a function specific context.

        * doc/c-tree.texi (DECL_FUNCTION_SPECIFIC_TARGET): Document new macro.
        (DECL_FUNCTION_SPECIFIC_OPTIMIZATION): Ditto.

        * doc/tm.texi (TARGET_VALID_OPTION_ATTRIBUTE_P): Document new hook.
        (TARGET_OPTION_SAVE): Ditto.
        (TARGET_OPTION_RESTORE): Ditto.
        (TARGET_OPTION_PRINT): Ditto.
        (TARGET_OPTION_PRAGMA_PARSE): Ditto.
        (TARGET_CAN_INLINE_P): Ditto.

        * doc/invoke.texi (-mfpmath=sse+387): Document as an alias for
        -mfpmath=sse,387.
        (-mfpmath=both): Ditto.

2008-07-23  Michael Meissner  <gnu@the-meissners.org>
            Karthik Kumar  <karthikkumar@gmail.com>

        * config/i386/i386.h (TARGET_ABM): Move switch into ix86_isa_flags.
        (TARGET_POPCNT): Ditto.
        (TARGET_SAHF): Ditto.
        (TARGET_AES): Ditto.
        (TARGET_PCLMUL): Ditto.
        (TARGET_CMPXCHG16B): Ditto.
        (TARGET_RECIP): Move switch into target_flags.
        (TARGET_FUSED_MADD): Ditto.
        (ix86_arch_features): Make an unsigned char type.
        (ix86_tune_features): Ditto.
        (OVERRIDE_OPTIONS): Add bool argument to override_options call.
        (TARGET_CPU_CPP_BUILTINS): Move into ix86_target_macros.
        (REGISTER_TARGET_PRAGMAS): Define, call ix86_register_pragmas.

        * config/i386/i386.opt (arch): New TargetSave field to define
        fields that need to be saved for function specific option support.
        (tune): Ditto.
        (fpmath): Ditto.
        (branch_cost): Ditto.
        (ix86_isa_flags_explicit): Ditto.
        (tune_defaulted): Ditto.
        (arch_specified): Ditto.
        (-m128-long-double): Add Save flag to save option for target
        specific option support.
        (-m80387): Ditto.
        (-maccumulate-outgoing-args): Ditto.
        (-malign-double): Ditto.
        (-malign-stringops): Ditto.
        (-mfancy-math-387): Ditto.
        (-mhard-float): Ditto.
        (-mieee-fp): Ditto.
        (-minline-all-stringops): Ditto.
        (-minline-stringops-dynamically): Ditto.
        (-mms-bitfields): Ditto.
        (-mno-align-stringops): Ditto.
        (-mno-fancy-math-387): Ditto.
        (-mno-push-args): Ditto.
        (-mno-red-zone): Ditto.
        (-mpush-args): Ditto.
        (-mred-zone): Ditto.
        (-mrtd): Ditto.
        (-msseregparm): Ditto.
        (-mstack-arg-probe): Ditto.
        (-m32): Ditto.
        (-m64): Ditto.
        (-mmmx): Ditto.
        (-m3dnow): Ditto.
        (-m3dnowa): Ditto.
        (-msse): Ditto.
        (-msse2): Ditto.
        (-msse3): Ditto.
        (-msse4.1): Ditto.
        (-msse4.2): Ditto.
        (-msse4): Ditto.
        (-mno-sse4): Ditto.
        (-msse4a): Ditto.
        (-msse5): Ditto.
        (-mrecip): Move flag into target_flags.
        (-mcld): Ditto.
        (-mno-fused-madd): Ditto.
        (-mfused-madd): Ditto.
        (-mabm): Move flag into ix86_isa_flags.
        (-mcx16): Ditto.
        (-mpopcnt): Ditto.
        (-msahf): Ditto.
        (-maes): Ditto.
        (-mpclmul): Ditto.

        * config/i386/i386-c.c: New file for #pragma support.
        (ix86_target_macros_internal): New function to #define or #undef
        target macros based when the user uses the #pragma GCC option to
        change target options.
        (ix86_pragma_option_parse): New function to add #pragma GCC option
        support.
        (ix86_target_macros): Move defining the target macros here from
        TARGET_CPU_CPP_BUILTINS in i386.h.
        (ix86_register_pragmas): Register the #pragma GCC option hook.  If
        defined, initialize any subtarget #pragmas.

        * config/i386/darwin.h (REGISTER_SUBTARGET_PRAGMAS): Rename from
        REGISTER_TARGET_PRAGMAS.

        * config/i386/t-i386: New file for x86 dependencies.
        (i386.o): Make dependencies mirror the include files used.
        (i386-c.o): New file, add dependencies.

        * config/i386/i386-protos.h (override_options): Add bool argument.
        (ix86_valid_option_attribute_tree): Add declaration.
        (ix86_target_macros): Ditto.
        (ix86_register_macros): Ditto.

        * config/i386/i386.c (ix86_tune_features): Move initialization of
        the target masks to initial_ix86_tune_features to allow functions
        to have different target options.  Make type unsigned char,
        instead of unsigned int.
        (initial_ix86_tune_features): New static vector to hold processor
        masks for the tune variables.
        (ix86_arch_features): Move initialization of the target masks to
        initial_ix86_arch_features to allow functions to have different
        target options.  Make type unsigned char, instead of unsigned int.
        (initial_ix86_arch_features): New static vector to hold processor
        masks for the arch variables.
        (enum ix86_function_specific_strings): New enum to describe the
        string options used for attribute((option(...))).
        (ix86_target_string): New function to return a string that
        describes the target options.
        (ix86_debug_options): New function to print the current options in
        the debugger.
        (ix86_function_specific_save): New function hook to save the
        function specific global variables in the cl_target_option structure.
        (ix86_function_specific_restore): New function hook to restore the
        function specific variables from the cl_target_option structure to
        the global variables.
        (ix86_function_specific_print): New function hook to print the
        target specific options in the cl_target_option structure.
        (ix86_valid_option_attribute_p): New function hook to validate
        attribute((option(...))) arguments.
        (ix86_valid_option_attribute_tree): New function that is common
        code between attribute((option(...))) and #pragma GCC option
        support that parses the options and returns a tree holding the options.
        (ix86_valid_option_attribute_inner_p): New helper function for
        ix86_valid_option_attribute_tree.
        (ix86_can_inline_p): New function hook to decide if one function
        can inline another on a target specific basis.
        (ix86_set_current_function); New function hook to switch target
        options if the user used attribute((option(...))) or #pragma GCC
        option.
        (ix86_tune_defaulted): Move to static file scope from
        override_options.
        (ix86_arch_specified): Ditto.
        (OPTION_MASK_ISA_AES_SET): New macro for moving switches into
        ix86_isa_flags.
        (OPTION_MASK_ISA_PCLMUL_SET): Ditto.
        (OPTION_MASK_ISA_ABM_SET): Ditto.
        (OPTION_MASK_ISA_POPCNT_SET): Ditto.
        (OPTION_MASK_ISA_CX16_SET): Ditto.
        (OPTION_MASK_ISA_SAHF_SET): Ditto.
        (OPTION_MASK_ISA_AES_UNSET): Ditto.
        (OPTION_MASK_ISA_PCLMUL_UNSET): Ditto.
        (OPTION_MASK_ISA_ABM_UNSET): Ditto.
        (OPTION_MASK_ISA_POPCNT_UNSET): Ditto.
        (OPTION_MASK_ISA_CX16_UNSET): Ditto.