* pa.c (compute_zdepwi_operands): Limit deposit length to 32 - lsb.

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

2009-07-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * pa.c (compute_zdepwi_operands): Limit deposit length to 32 - lsb.
        Cast "1" to unsigned HOST_WIDE_INT.
        (compute_zdepdi_operands): Limit maximum length to 64 bits.  Limit
        deposit length to the maximum length - lsb.  Extend length if
        HOST_BITS_PER_WIDE_INT is 32.

2009-07-20  Olatunji Ruwase <tjruwase@google.com>

        * cgraph.h (constant_pool_htab): New function.
        (constant_descriptor_tree): Move from varasm.c.
        * varasm.c (constant_pool_htab): New function.
        (constant_descriptor_tree): Move to cgraph.h.

2009-07-20  Olatunji Ruwase  <tjruwase@google.com>

        * toplev.c: Invoke FINISH_UNIT callbacks before call to
        finalize().

2009-07-20  Shujing Zhao  <pearly.zhao@oracle.com>

        * Makefile.in (TREE_INLINE_H, tree-inline.o, cgraph.o): Remove
        $(VARRAY_H).

2009-07-20  Xinliang David Li  <davidxl@google.com>

        * dbgcnt.c (dbg_cnt_set_limit_by_name): Add length check.

2009-07-20  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (move_type): Add arith.
        (type): Handle arith.
        (zero_extendsidi2): Rename this into ...
        (*zero_extendsidi2): ... this.  Don't match if ISA_HAS_EXT_INS.
        (zero_extendsidi2): New expander.
        (*zero_extendsidi2_dext): New pattern.

2009-07-20  Nick Clifton  <nickc@redhat.com>

        * config.gcc (mips64-*-*): Add definition of tm_defines in order
        to set MIPS_ABI_DEFAULT.
        * config/mips/vr.h (MIPS_ABI_DEFAULT): Remove definition.

2009-07-20  Jakub Jelinek  <jakub@redhat.com>

        * tree-object-size.c (addr_object_size): Handle unions with
        array in it as last field of structs in __bos (, 1) as __bos (, 0).

        PR tree-optimization/40792
        * tree.c (build_function_type_skip_args): Remove bogus assert.

2009-07-20  Jan Hubicka  <jh@suse.cz>
            Martin Jambor  <mjambor@suse.cz>

        * cgraph.h (combined_args_to_skip): New field.
        * cgraph.c (cgraph_create_virtual_clone): Properly handle
        combined_args_to_skip and args_to_skip.
        * tree-inline.c (update_clone_info): New function.
        (tree_function_versioning): Call update_clone_info.
        * cgraphunit.c: (cgraph_materialize_clone): Dump materialized functions.
        (cgraph_materialize_all_clones): More extensive dumping, working
        with combined_args_to_skip rather than args_to_skip.

2009-07-20  Ira Rosen  <irar@il.ibm.com>

        * tree-vectorizer.h (vectorizable_condition): Add parameters.
        * tree-vect-loop.c (vect_is_simple_reduction): Support COND_EXPR.
        (get_initial_def_for_reduction): Likewise.
        (vectorizable_reduction): Skip the check of first operand in case
        of COND_EXPR. Add check that it is outer loop vectorization if
        nested cycle was detected. Call vectorizable_condition() for 
        COND_EXPR. If reduction epilogue cannot be created do not fail for
        nested cycles (if it is not double reduction). Assert that there
        is only one type in the loop in case of COND_EXPR. Call
        vectorizable_condition() to vectorize COND_EXPR.
        * tree-vect-stmts.c (vectorizable_condition): Update comment.
        Add parameters. Allow nested cycles if called from 
        vectorizable_reduction(). Use reduction vector variable if provided.
        (vect_analyze_stmt): Call vectorizable_reduction() before
        vectorizable_condition().
        (vect_transform_stmt): Update call to vectorizable_condition().

2009-07-20  Christian Bruel  <christian.bruel@st.com>
        
        * config/sh/sh.opt (-mfmovd): Resurrect and document.
        * doc/invoke.texi (-mfmovd): Likewise.
        * config/sh/sh.h (TARGET_FMOVD, MASK_FMOVD): Remove default setting.
        
2009-07-20  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (remove_dead_phis): Only look for abnormal PHIs
        when handling SSA name.

2009-07-19  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/40676
        * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do renaming on all
        virtual PHIs in empty BBs.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (make_compound_operation) <SUBREG>: If force_to_mode
        re-expanded the compound use gen_lowpart instead to convert to the
        desired mode.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (try_widen_shift_mode): Add COUNT, OUTER_CODE and
        OUTER_CONST arguments.
        <LSHIFTRT>: Use them to allow widening if the bits shifted in from
        the new wider mode will be masked off.
        (simplify_shift_const_1): Adjust calls to try_widen_shift_mode.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (try_widen_shift_mode) <LSHIFTRT>: Allow widening if the
        high-order bits are zero.

2009-07-18  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (simplify_shift_const_1): Split code to determine
        shift_mode into ...
        (try_widen_shift_mode): ... here.  Allow widening for ASHIFTRT if the
        new bits shifted in are identical to the old sign bit.

2009-07-18  Richard Guenther  <rguenther@suse.de>

        PR c/40787
        * gimplify.c (gimplify_call_expr): Reject code using results from
        functions returning void.

2009-07-18  Richard Sandiford  <r.sandiford@uk.ibm.com>

        * doc/md.texi: Document the new PowerPC "es" constraint.
        Document that "m" can include automodified addresses on this target,
        and explain how %U must be used.  Extend the "Q" and "Z" documentation
        to suggest "es" as well as "m".
        * config/rs6000/constraints.md (es): New memory constraint.
        (Q, Z): Update strings to match new documentation.

2009-07-18  Richard Sandiford  <r.sandiford@uk.ibm.com>

        * config/rs6000/rs6000.c (rs6000_mode_dependent_address): Allow any
        offset from virtual_stack_vars_rtx and arg_pointer_rtx.
        * config/rs6000/predicates.md (volatile_mem_operand): Use
        offsettable_nonstrict_memref_p.
        * config/rs6000/rs6000.md (*floatsidf2_internal): Remove split check.
        (*floatunssidf2_internal): Likewise.
        (*fix_truncdfsi2_internal): Likewise.
        (*fix_trunctfsi2_internal): Likewise.

2009-07-17  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr-devices.c (avr_mcu_t): Add atmega8u2, atmega16u2 and
        atmega32u2 devices.
        * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2009-07-17  Richard Guenther  <rguenther@suse.de>

        PR c/40401
        * tree-pass.h (pass_diagnose_omp_blocks): Declare.
        (pass_warn_unused_result): Likewise.
        (TODO_set_props): Remove.
        * omp-low.c (diagnose_omp_structured_block_errors): Change to
        run as a pass.
        (pass_diagnose_omp_blocks): Define.
        * c-decl.c (pop_file_scope): Do not finalize the CU here.
        (c_gimple_diagnostics_recursively): Remove.
        (finish_function): Do not call it.
        (c_write_global_declarations): Continue after errors.
        Finalize the CU here.
        * c-gimplify.c (c_genericize): Do not gimplify here.
        * c-common.c (c_warn_unused_result): Move ...
        * tree-cfg.c (do_warn_unused_result): ... here.
        (run_warn_unused_result): New function.
        (gate_warn_unused_result): New function.
        (pass_warn_unused_result): New pass.
        * c-common.h (c_warn_unused_result): Remove.
        * flags.h (flag_warn_unused_result): Declare.
        * c-opts.c (c_common_init_options): Enable flag_warn_unused_result.
        * opts.c (flag_warn_unused_result): Initialize to false.
        * toplev.c (compile_file): Add comment.
        * omp-low.c (create_omp_child_function): Do not register
        the function with the frontend.
        (diagnose_omp_structured_block_errors): Prepare to be
        called as optimization pass.
        (gate_diagnose_omp_blocks): New function.
        (pass_diagnose_omp_blocks): New pass.
        * cgraph.h (cgraph_optimize): Remove.
        (cgraph_analyze_function): Likewise.
        * cgraph.c (cgraph_add_new_function): Gimplify C++ thunks.
        * cgraphunit.c (cgraph_lower_function): Lower nested functions
        before their parents here.
        (cgraph_finalize_function): Not here.
        (cgraph_analyze_function): Gimplify functions here.
        (cgraph_finalize_compilation_unit): Continue after errors.
        Optimize the callgraph from here.
        (cgraph_optimize): Make static.
        * langhooks.c (write_global_declarations): Finalize the CU.
        * gimplify.c (gimplify_asm_expr): Do not emit ASMs with errors.
        (gimplify_function_tree): Assert we gimplify only once.
        Set PROP_gimple_any property.
        * tree-nested.c (gimplify_all_functions): New function.
        (lower_nested_functions): Gimplify all nested functions.
        * gimple.h (diagnose_omp_structured_block_errors): Remove.
        * passes.c (init_optimization_passes): Add pass_warn_unused_result
        and pass_diagnose_omp_blocks after gimplification.  Do not
        set TODO_set_props on all_lowering_passes.
        (execute_one_pass): Do not handle TODO_set_props.
        * Makefile.in (cgraphunit.o): Add $(TREE_DUMP_H) dependency.
        (gimplify.o): Add tree-pass.h dependency.
        * tree-inline.c (copy_statement_list): Properly copy STATEMENT_LIST.
        (copy_tree_body_r): Properly handle TARGET_EXPR like SAVE_EXPR.
        (unsave_r): Likewise.
        * c-omp.c (c_finish_omp_atomic): Set DECL_CONTEXT on the
        temporary variable.

2009-07-17  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/service.texi (Service): Restore previously removed link,
        which isn't broken after all.

2009-07-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40321
        * tree-ssa-pre.c (add_to_exp_gen): Also add names defined by
        PHI nodes to the maximal set.
        (make_values_for_phi): Add PHI arguments to the maximal set.
        (execute_pre): Dump PHI_GEN and the maximal set.

2009-07-17  Jakub Jelinek  <jakub@redhat.com>

        PR c++/40780
        * gimplify.c (gimplify_conversion): Don't change non-conversions into
        VIEW_CONVERT_EXPR.

2009-07-16  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi (Nested Functions): Replace broken link with
        textual reference.
        * doc/service.texi (Service): Remove broken link.

2009-07-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/40781
        * builtins.c (expand_builtin_memcmp): Use loc instead of
        EXPR_LOCATION (exp).
        (expand_builtin_strncmp): Likewise.

2009-07-17  Aldy Hernandez  <aldyh@redhat.com>
            Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 40435 
        * tree-complex.c, tree-loop-distribution.c, tree.c, tree.h,
        builtins.c, fold-const.c, omp-low.c, cgraphunit.c, tree-ssa-ccp.c,
        tree-ssa-dom.c, gimple-low.c, expr.c, tree-ssa-ifcombine.c,
        c-decl.c, stor-layout.c, tree-if-conv.c, c-typeck.c, gimplify.c,
        calls.c, tree-sra.c, tree-mudflap.c, tree-ssa-copy.c,
        tree-ssa-forwprop.c, c-convert.c, c-omp.c, varasm.c,
        tree-inline.c, c-common.c, c-common.h, gimple.c,
        tree-switch-conversion.c, gimple.h, tree-cfg.c, c-parser.c,
        convert.c: Add location argument to fold_{unary,binary,ternary},
        fold_build[123], build_call_expr, build_size_arg,
        build_fold_addr_expr, build_call_array, non_lvalue, size_diffop,
        fold_build1_initializer, fold_build2_initializer,
        fold_build3_initializer, fold_build_call_array,
        fold_build_call_array_initializer, fold_single_bit_test,
        omit_one_operand, omit_two_operands, invert_truthvalue,
        fold_truth_not_expr, build_fold_indirect_ref, fold_indirect_ref,
        combine_comparisons, fold_builtin_*, fold_call_expr,
        build_range_check, maybe_fold_offset_to_address, round_up,
        round_down.

2009-07-16  Jason Merrill  <jason@redhat.com>

        PR libstdc++/37907
        * c-common.c (c_common_reswords): Add __is_standard_layout
        and __is_trivial.
        * c-common.h (enum rid): Add RID_IS_STD_LAYOUT and RID_IS_TRIVIAL.
        * doc/implement-cxx.texi: New.
        * doc/gcc.texi: Include it.

2009-07-16  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_compare_redundant): Avoid removing
        compares that may be indirectly affected by previous instructions.

2009-07-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * builtins.c (do_mpc_arg2): New.
        (fold_builtin_2): Fold builtin cpow.
        * real.h (HAVE_mpc_pow): New.

2009-07-16  Bingfeng Mei  <bmei@broadcom.com>

        * modulo-sched.c (sms_schedule): stage_count <= 1 as correct
        comparison to skip unprofitable schedule

2009-07-16  Simon Baldwin  <simonb@google.com>

        * gcc.c (option_map): New flag -no-canonical-prefixes.
        * (display_help): Print help text for new flag.
        * (process_command): Move options translation and language specifics
        and handle new flag early.  Use it to set a function pointer to a
        prefix builder.  Replace make_relative_prefix calls with calls to
        the function pointed to.  Ignore new flag in regular options handling.
        * doc/invoke.texi (Overall Options): Documented -no-canonical-prefixes.

2009-07-15  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.md (sibcall_internal): Change register to avoid
        argument registers.
        (sibcall_value_internal): Likewise.

2009-07-15  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/40710
        * resource.c (mark_target_live_regs): Reset DF problem to LR.

2009-07-15  Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips.md (*extenddi_truncate<mode>,
        *extendsi_truncate<mode>): Change type attribute to move_type
        with shift_shift.  Split out code handling exts from here ...
        (*extend<GPR:mode>_truncate<SHORT:mode>_exts): ... to this new
        pattern.
        (*extendhi_truncateqi): Change type attribute to move_type with
        shift_shift.  Split out code handling exts from here ...
        (*extendhi_truncateqi_exts): ... to this new pattern.

2009-07-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (copysign<mode>3): Use "and-not" SSE instruction
        instead of "and" with inverted sign bit mask value.  Use
        "nonimmediate_operand" for operand 1 and operand 2 predicate.
        Allocate registers only for operand 4 and operand 5.

2009-07-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/40747
        * fold-const.c (fold_cond_expr_with_comparison): When folding
        < and <= to MIN, make sure the MIN uses the same type as the
        comparison's operands.

2009-07-15  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (ior_xor): New code iterator.
        (split for ior/xor with shift and zero-extend): New split pattern.
        * arm/predicates.md (subreg_lowpart_operator): New special predicate.

2009-07-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (make_constraint_from_heapvar): Initialize
        offset member.

2009-07-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/40753
        * alias.c (ao_ref_from_mem): Reject FUNCTION_DECL and LABEL_DECL bases.

2009-07-15  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/m68k/linux-unwind.h (m68k_fallback_frame_state): Update to
        handle 2.6.30 kernel.

2009-07-15  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.md (sibcall_internal): Change register to allow
        for 24-bit addresses.
        (sibcall_value_internal): Likewise.

2009-07-14  Ghassan Shobaki  <ghassan.shobaki@amd.com>
        
        * doc/invoke.texi: Added descriptions of the  scheduling heuristics
        that are enabled/disabled by the flags introduced by a previous patch.
        
2009-07-14  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.md (sibcall_internal): Include non-toggling
        non-jmp case.
        (sibcall_value_internal): Likewise.

2009-07-14  Taras Glek  <tglek@mozilla.com>
            Rafael Espindola  <espindola@google.com>

        * doc/sourcebuild.texi: Document install-plugin target.
        * configure.ac: Added install-plugin target to language makefiles.
        * configure: Regenerate.
        * Makefile.in: (install-plugin): Install more headers,
        depend on lang.install-plugin.

2009-07-15  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree-vrp.c (vrp_evaluate_conditional): Mark strings for
        translation.
        
2009-07-14  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_vliw_jmp_match): New function.
        * config/mep/mep-protos.h (mep_vliw_jmp_match): Prototype it.
        * config/mep/mep.md (sibcall_internal): Change test from
        mep_vliw_mode_match to mep_vliw_jmp_match.
        (sibcall_value_internal): Likewise.

2009-07-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (copysign<mode>3): New expander.
        * config/i386/i386-protos.h (ix86_build_signbit_mask): New prototype.
        * config/i386/i386.c (ix86_build_signbit_mask): Make public.
        Use ix86_build_const_vector.
        (enum ix86_builtins): Add IX86_BUILTIN_CPYSGNPS and
        IX86_BUILTIN_CPYSGNPD.
        (builtin_description): Add __builtin_ia32_copysignps and
        __builtin_ia32_copysignpd.
        (ix86_builtin_vectorized_function): Handle BUILT_IN_COPYSIGN
        and BUILT_IN_COPYSIGNF.

2009-07-13  Jason Merrill  <jason@redhat.com>

        * builtins.c (can_trust_pointer_alignment): New fn.
        (get_pointer_alignment): Factor it out from here.
        * tree.h: Declare it.

2009-07-14  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/predicates.md (offsettable_mem_operand): Test
        RTX_AUTOINC class.

2009-07-14  Dodji Seketeli  <dodji@redhat.com>

        PR debug/40705
        PR c++/403057
        * dwarf2.out.c (gen_type_die_with_usage): Added comment.

2009-07-14  Richard Guenther  <rguenther@suse.de>
            Andrey Belevantsev <abel@ispras.ru>

        PR middle-end/40745
        * cfgexpand.c (partition_stack_vars): Do not bother to update
        alias information when not optimizing.

2009-07-14  Richard Guenther  <rguenther@suse.de>
        Andrey Belevantsev <abel@ispras.ru>

        * tree-ssa-alias.h (refs_may_alias_p_1): Declare.
        (pt_solution_set): Likewise.
        * tree-ssa-alias.c (refs_may_alias_p_1): Export.
        * tree-ssa-structalias.c (pt_solution_set): New function.
        * final.c (rest_of_clean_state): Free SSA data structures.
        * print-rtl.c (print_decl_name): Remove.
        (print_mem_expr): Implement in terms of print_generic_expr.
        * alias.c (ao_ref_from_mem): New function.
        (rtx_refs_may_alias_p): Likewise.
        (true_dependence): Query alias-export info.
        (canon_true_dependence): Likewise.
        (write_dependence_p): Likewise.
        * tree-dfa.c (get_ref_base_and_extent): For void types leave
        size unknown.
        * emit-rtl.c (component_ref_for_mem_expr): Remove.
        (mem_expr_equal_p): Use operand_equal_p.
        (set_mem_attributes_minus_bitpos): Do not use
        component_ref_for_mem_expr.
        * cfgexpand.c (add_partitioned_vars_to_ptset): New function.
        (update_alias_info_with_stack_vars): Likewise.
        (partition_stack_vars): Call update_alias_info_with_stack_vars.
        * tree-ssa.c (delete_tree_ssa): Do not release SSA names
        explicitly nor clear stmt operands.
        Free the decl-to-pointer map.
        * tree-optimize.c (execute_free_datastructures): Do not free
        SSA data structures here.
        * tree-flow.h (struct gimple_df): Add decls_to_pointers member.
        * Makefile.in (emit-rtl.o): Add pointer-set.h dependency.
        (alias.o): Add tree-ssa-alias.h, pointer-set.h and $(TREE_FLOW_H)
        dependencies.
        (print-rtl.o): Add $(DIAGNOSTIC_H) dependency.

2009-07-13  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.h (CC1_SPEC): Tweak parameters to trigger
        unrolling at the right iteration count.

        * config/mep/mep.c (mep_expand_prologue): Fix frame pointer
        calculations.

2009-07-13  Ghassan Shobaki  <ghassan.shobaki@amd.com>
        
        * haifa-sched.c (rank_for_schedule): Introduced flags to
        enable/disable individual scheduling heuristics.
        * common.opt: Introduced flags to enable/disable individual
        heuristics in the scheduler.    
        * doc/invoke.texi: Introduced flags to enable/disable individual
        heuristics in the scheduler.
        
2009-07-13  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/t-gthr-win32 (LIB2FUNCS_EXTRA): Remove file
        config/i386/mingw-tls.c.
        * config/i386/mingw-tls.c: Removed.

2009-07-13  Ira Rosen  <irar@il.ibm.com>

        * tree-vect-loop.c (get_initial_def_for_reduction): Ensure that the 
        checks access only relevant statements.
        (vectorizable_reduction): Likewise.

2009-07-12  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Define _X86_
        just for 32-bit case.

2009-07-12  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/40585
        * except.c (expand_resx_expr): When there already is resume
        instruction, produce linked list.
        (build_post_landing_pads): Assert that resume is empty.
        (connect_post_landing_pads): Handle resume lists.
        (dump_eh_tree): Dump resume list.

2009-07-12  Ira Rosen  <irar@il.ibm.com>

        * tree-parloops.c (loop_parallel_p): Call vect_is_simple_reduction
        with additional argument.
        * tree-vectorizer.h (enum vect_def_type): Add
        vect_double_reduction_def.
        (vect_is_simple_reduction): Add argument.
        * tree-vect-loop.c (vect_determine_vectorization_factor): Fix
        indentation.
        (vect_analyze_scalar_cycles_1): Detect double reduction. Call
        vect_is_simple_reduction with additional argument.
        (vect_analyze_loop_operations): Handle exit phi nodes in case of
        double reduction.
        (reduction_code_for_scalar_code): Handle additional codes by
        returning ERROR_MARK for them. Fix comment and indentation.
        (vect_is_simple_reduction): Fix comment, add argument to specify
        double reduction. Detect double reduction.
        (get_initial_def_for_induction): Fix indentation.
        (get_initial_def_for_reduction): Fix comment and indentation.
        Handle double reduction. Create initial definitions that do not
        require adjustment if ADJUSTMENT_DEF is NULL. Handle additional cases.
        (vect_create_epilog_for_reduction): Fix comment, add argument to
        handle double reduction. Use PLUS_EXPR in case of MINUS_EXPR in
        epilogue result extraction. Create double reduction phi node and
        replace relevant uses.
        (vectorizable_reduction): Call vect_is_simple_reduction with
        additional argument. Fix indentation. Update epilogue code treatment
        according to the changes in reduction_code_for_scalar_code. Check
        for double reduction. Call vect_create_epilog_for_reduction with
        additional argument.
        * tree-vect-stmts.c (process_use): Handle double reduction, update
        documentation.
        (vect_mark_stmts_to_be_vectorized): Handle double reduction.
        (vect_get_vec_def_for_operand): Likewise.

2009-07-12  Danny Smith  <dansmister@gmail.com>

        * config/i386/winnt.c (i386_pe_determine_dllexport_p): Don't
        dllexport if !TREE_PUBLIC.
        (i386_pe_maybe_record_exported_symbol): Assert TREE_PUBLIC.

2009-07-11  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.h (TARGET_CPU_CPP_BUILTINS): Redefine.
        (avr_extra_arch_macro) Remove declatation.
        * config/avr/avr.c (avr_cpu_cpp_builtins): New function.
        (avr_extra_arch_macro) Declare as static.
        * config/avr/avr-protos.h (avr_cpu_cpp_builtins): Dclare.

2009-07-11  Jan Hubicka  <jh@suse.cz>

        PR middle-end/48388
        * except.c (can_be_reached_by_runtime): Test for NULL aka bitmap.

2009-07-11  Jakub Jelinek  <jakub@redhat.com>

        PR debug/40713
        * dwarf2out.c (dw_fde_struct): Add in_std_section and
        cold_in_std_section bits.
        (dwarf2out_begin_prologue): Initialize them.
        (dwarf2out_finish): Don't emit FDE range into .debug_ranges
        if already covered by text_section or cold_text_section range.

        PR rtl-optimization/40667
        * defaults.h (MINIMUM_ALIGNMENT): Define if not defined.
        * doc/tm.texi (MINIMUM_ALIGNMENT): Document it.
        * config/i386/i386.h (MINIMUM_ALIGNMENT): Define.
        * config/i386/i386.c (ix86_minimum_alignment): New function.
        * config/i386/i386-protos.h (ix86_minimum_alignment): New prototype.
        * cfgexpand.c (expand_one_var): Use MINIMIM_ALIGNMENT.
        * emit-rtl.c (gen_reg_rtx): Likewise.
        * function.c (assign_parms): Likewise.  If nominal_type needs
        bigger alignment than FUNCTION_ARG_BOUNDARY, use its alignment
        rather than passed_type's alignment.

        PR target/40668
        * function.c (assign_parm_setup_stack): Adjust
        MEM_OFFSET (data->stack_parm) if promoted_mode is different
        from nominal_mode on big endian.

2009-07-11  Paolo Bonzini  <bonzini@gnu.org>

        * expmed.c (emit_store_flag_1): Fix choice of zero vs. sign extension.

2009-07-10  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_can_inline_p): Correct logic, and simplify.

2009-07-10  Mark Mitchell  <mark@codesourcery.com>

        * config/arm/thumb2.md (thumb2_cbz): Correct computation of length
        attribute.
        (thumb2_cbnz): Likewise.

2009-07-10  David Daney  <ddaney@caviumnetworks.com>

        PR target/39079
        * config.gcc (supported_defaults): Add synci.
        (with_synci): Add validation.
        (all_defaults): Add synci.
        * config/mips/mips.md (clear_cache): Use TARGET_SYNCI instead of
        ISA_HAS_SYNCI.
        (synci): Same.
        * config/mips/mips.opt (msynci): New option.
        * config/mips/mips.c (mips_override_options): Warn on use of
        -msynci for targets that do now support it.
        * gcc/config/mips/mips.h (OPTION_DEFAULT_SPECS): Add a default for
        msynci.
        * gcc/doc/invoke.texi (-msynci): Document the new option.
        * doc/install.texi (--with-synci): Document the new option.

2009-07-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40496
        * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Create
        the PHI result with a compatible type.

2009-07-10  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 25509
        PR 40614
        * c.opt (Wunused-result): New.
        * doc/invoke.texi: Document it.
        * c-common.c (c_warn_unused_result): Use it.

2009-07-09  DJ Delorie  <dj@redhat.com>

        * targhooks.c (default_target_can_inline_p): Rename from
        default_target_option_can_inline_p.
        * targhooks.h (default_target_can_inline_p): Likewise.
        * target-def.h (TARGET_CAN_INLINE_P): Rename from
        TARGET_OPTION_CAN_INLINE_P.
        * config/i386/i386.c (TARGET_CAN_INLINE_P): Likewise.
        * config/mep/mep.c (TARGET_CAN_INLINE_P): Likewise.
        (mep_target_can_inline_p): Rename from
        mep_target_option_can_inline_p.

        PR target/40626
        * config/mep/mep.h (FUNCTION_ARG_REGNO_P): Add coprocessor
        registers used to pass vectors.

        * config/mep/mep.c (mep_option_can_inline_p): Remove error call.

2009-07-09  Tom Tromey  <tromey@redhat.com>

        * unwind-dw2-fde-darwin.c: Include dwarf2.h.
        * config/mmix/mmix.c: Include dwarf2.h.
        * config/rs6000/darwin-fallback.c: Include dwarf2.h.
        * config/xtensa/unwind-dw2-xtensa.c: Include dwarf2.h.
        * config/sh/sh.c: Include dwarf2.h.
        * config/i386/i386.c: Include dwarf2.h.
        * Makefile.in (DWARF2_H): Remove 'elf'.
        * except.c: Include dwarf2.h.
        * unwind-dw2.c: Include dwarf2.h.
        * dwarf2out.c: Include dwarf2.h.
        * unwind-dw2-fde-glibc.c: Include dwarf2.h.
        * unwind-dw2-fde.c: Include dwarf2.h.
        * dwarf2asm.c: Include dwarf2.h.

2009-07-09  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * haifa-sched.c (insn_finishes_cycle_p): New static function.
        (max_issue): Use it.
        * sched-int.h (struct sched_info: insn_finishes_block_p): New
        scheduler hook.
        * sched-rgn.c (rgn_insn_finishes_block_p): Implement it.
        (region_sched_info): Update.
        * sched-ebb.c (ebb_sched_info): Update.
        * modulo-sched.c (sms_sched_info): Update.
        * sel-sched-ir.c (sched_sel_haifa_sched_info): Update.

2009-07-09  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * varasm.c (build_constant_desc): Don't share RTL in pool entries.

2009-07-09  Basile Starynkevitch  <basile@starynkevitch.net>

        * plugin.c (try_init_one_plugin): passes RTLD_GLOBAL to dlopen. 

2009-07-09  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/40692
        * fold-const.c (fold_cond_expr_with_comparison): Don't replace
        arg1 with arg01 if arg1 is already INTEGER_CST.

2009-07-08  Adam Nemet  <anemet@caviumnetworks.com>

        * simplify-rtx.c (simplify_binary_operation_1) <AND>:
        Transform (and (truncate)) into (truncate (and)).

2009-07-08  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (make_extraction): Check TRULY_NOOP_TRUNCATION before
        creating LHS paradoxical subregs.  Fix surrounding returns to
        use NULL_RTX rather than 0.

2009-07-08  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c: (mep_option_can_inline_p): New.
        (TARGET_OPTION_CAN_INLINE_P): Define.

2009-07-08  Mark Wielaard  <mjw@redhat.com>

        PR debug/40659
        * dwarf2out.c (add_data_member_location_attribute): When we have
        only a constant offset don't emit a new location description using
        DW_OP_plus_uconst, but just add the constant with add_AT_int, when
        dwarf_version > 2.

2009-07-08  Richard Henderson  <rth@redhat.com>

        PR target/38900
        * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Move to i386.c.
        (enum reg_class): Add CLOBBERED_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Likewise.
        * config/i386/i386.c (ix86_conditional_register_usage): Moved
        from CONDITIONAL_REGISTER_USAGE; build CLOBBERED_REGS for 64-bit.
        (ix86_function_ok_for_sibcall): Tidy.  Disallow MS->SYSV sibcalls.
        (ix86_expand_call): Use sibcall_insn_operand when needed.  Don't
        force 64-bit sibcalls into R11.
        * config/i386/constraints.md (U): New constraint.
        * config/i386/i386.md (sibcall_1, sibcall_value_1): Use it.
        (sibcall_1_rex64, sibcall_value_1_rex64): Likewise.
        (sibcall_1_rex64_v, sibcall_value_1_rex64_v): Remove.

2009-07-08  Shujing Zhao  <pearly.zhao@oracle.com>

        * basic-block.h (dump_regset, debug_regset): Remove duplicate
        prototypes.
        * c-objc-common.h (c_initialize_diagnostics): Ditto.
        * ebitmap.h (dump_ebitmap): Ditto.
        * optabs.h (optab_libfunc): Ditto.
        * tree.h (tree_expr_nonzero_warnv_p): Ditto.
        * tree-flow.h (vect_can_force_dr_alignment_p,
        get_vectype_for_scalar_type): Ditto.
        (vectorize_loops): Move prototype to ...
        * tree-vectorizer.h: ... here. Also, adjust comment.
        (vect_set_verbosity_level): Remove duplicate prototype.
        * tree-ssa-loop.c: Include tree-vectorizer.h.
        * Makefile.in (tree-ssa-loop.o): Depend on tree-vectorizer.h.

2009-07-08  Nick Clifton  <nickc@redhat.com>

        * config/i386/unix.h (ASM_COMMENT_START): Add a space after the
        forward slash.

2009-07-08  DJ Delorie  <dj@redhat.com>

        * config/mep/mep-ivc2.cpu (cpmovtocsar0_C3, cpmovtocsar1_C3,
        cpmovtocc_C3, cpmovtocsar0_P0S_P1, cpmovtocsar1_P0S_P1,
        cpmovtocc_P0S_P1): Mark volatile.  Note which registers are
        written to.
        * config/mep/intrinsics.md: Regenerated.
        * config/mep/mep.c (mep_interrupt_saved_reg): Save IVC2 control
        registers when asm() or calls are detected.

2009-07-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/31246
        * gimplify.c (gimplify_expr): Propagate no_warning flag when
        gimplifying.
        * gimple (gimple_build_call_from_tree): Likewise.
        * tree-cfg.c (remove_useless_stmts_warn_notreached): Check
        no_warning flag before warning.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * tree.c (set_expr_locus): Remove.
        * tree.h (EXPR_LOCUS,SET_EXPR_LOCUS,set_expr_locus): Remove.
        * c-typeck.c (c_finish_stmt_expr):  Replace EXPR_LOCUS by
        EXPR_LOCATION.
        * gimplify.c (internal_get_tmp_var): Likewise.
        (gimplify_call_expr): Likewise.
        (gimplify_one_sizepos): Likewise.

2009-07-07  Eric Botcazou  <ebotcazou@adacore.com>

        PR debug/40666
        * dbxout.c (dbxout_symbol) <PARM_DECL>: Deal with parameters pointing
        to variables for debugging purposes.

2009-06-23  Mark Loeser  <mark@halcy0n.com>

        PR build/40010
        * Makefile.in (gcc.pod): Depend on gcc-vers.texi.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * pretty-print.c (pp_base_format): Remove %J.
        * c-format.c (gcc_diag_char_table, gcc_tdiag_char_table,
        gcc_cxxdiag_char_table): Likewise.
        (init_dynamic_diag_info): Likewise.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * pretty-print.c (pp_base_format): Remove %H.
        * c-format.c (gcc_diag_char_table, gcc_tdiag_char_table,
        gcc_cxxdiag_char_table): Likewise.
        (init_dynamic_diag_info): Likewise.
        * config/mep/mep.c (mep_select_section): Likewise.

2009-07-07  Duncan Sands  <baldrick@free.fr>

        * final.c (pass_clean_state): Give the pass a name.
        * passes.c (pass_rest_of_compilation): Likewise.
        * tree-optimize.c (pass_all_optimizations): Likewise.

2009-07-07  H.J. Lu  <hongjiu.lu@intel.com>

        * config/ia64/ia64.c (ia64_handle_model_attribute): Remove
        an extra 'decl' for error_at.

2009-07-07  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/40669
        * tree-tailcall.c (adjust_return_value_with_ops,
        create_tailcall_accumulator): Set DECL_GIMPLE_REG_P on the temporary
        if it has complex or vector type.

2009-07-07  Olivier Hainque  <hainque@adacore.com>

        * config/alpha/t-osf4 (SHLIB_LINK): Do not hide the dummy weak
        pthread symbols.

2009-07-07  Basile Starynkevitch  <basile@starynkevitch.net>

        * Makefile.in: added more lists of includes to PLUGIN_HEADERS.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * cgraphunit.c: Replace %J by an explicit location.  Update all calls.
        * c-decl.c: Likewise.
        * function.c: Likewise.
        * varasm.c: Likewise.
        * tree-ssa.c: Likewise.
        * c-common.c: Likewise.
        * tree-cfg.c: Likewise.
        * config/spu/spu.c: Likewise.
        * config/ia64/ia64.c: Likewise.
        * config/v850/v850.c: Likewise.

2009-07-06  DJ Delorie  <dj@redhat.com>

        * config/mep/mep-core.cpu (fsft, ssarb): Mark as VOLATILE.
        * config/mep/mep-ivc2.cpu (many): Add VOLATILE to more insns that make
        unspecified accesses to control registers.
        * config/mep/intrinsics.md: Regenerate.
        * config/mep/intrinsics.h: Regenerate.
        * config/mep/mep-intrin.h: Regenerate.

2009-07-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * c-lex.c: Replace %H by an explicit location. Update all calls.
        * c-common.c: Likewise.
        * c-decl.c: Likewise.
        * c-typeck.c: Likewise.
        * fold-const.c: Likewise.
        * gimplify.c: Likewise.
        * stmt.c: Likewise.
        * tree-cfg.c: Likewise.
        * tree-ssa-loop-niter.c: Likewise.
        * tree-vrp.c: Likewise.
        * value-prof.c: Likewise.

2009-07-06  Diego Novillo  <dnovillo@google.com>

        * tree-dfa.c (dump_variable): Write DECL_INITIAL for VAR
        if it has one.  Handle cases where VAR does not have an
        annotation or cfun is NULL.

2009-07-06  Diego Novillo  <dnovillo@google.com>

        * tree.c: Include debug.h.
        (initialize_tree_contains_struct): New.
        (init_ttree): Call it.
        (tree_node_structure_for_code): Factor out of ...
        (tree_node_structure): ... here.
        * treestruct.def (TS_PHI_NODE): Remove.
        (TS_GIMPLE_STATEMENT): Remove.

2009-07-06  Diego Novillo  <dnovillo@google.com>

        * tree-pretty-print.c (dump_generic_node): Protect against NULL op0.
        (debug_tree_chain): Handle cycles.

2009-07-06  Nick Clifton  <nickc@redhat.com>
            DJ Delorie  <dj@redhat.com>

        * config.sh/lib1funcs.h (FMOVD_WORKS): Only define if
        __FMOVD_ENABLED__ is defined.
        * config/sh/sh.h
        (TARGET_FMOVD): Provide a default definition.
        (MASK_FMOVD): Likewise.
        (TARGET_CPU_CPP_BUILTINS): Define
        __FMOVD_ENABLED__ if TARGET_FMOVD is true.
        * config/sh/sh.md (movdf_i4): For alternative 0 use either one or
        two fmov instructions depending upon whether TARGET_FMOVD is enabled.
        (split for DF load from memory into register): Also handle
        MEMs which consist of REG+DISP addressing.
        (split for DF store from register to memory): Likewise.
        (movsf_ie): Always use single fp_mode.
        * config/sh/sh.c (sh_override_options): Do not automatically
        enable TARGET_MOVD for the SH2A when supporting doubles - leave
        that to the -mfmovd command line switch.
        (broken_move): Do not restrict fldi test to only the SH4 and SH4A.
        (fldi_ok): Always allow.
        * config/sh/sh.opt (mfmovd): Remove this switch.
        * doc/invoke.texi (-mfmovd): Remove documentation of this switch.

2009-07-06  J"orn Rennecke  <joern.rennecke@arc.com>
            Kaz Kojima  <kkojima@gcc.gnu.org>

        PR rtl-optimization/30807
        * postreload.c (reload_combine): For every new use of REG_SUM,
        record the use of BASE.

2009-07-06  Jan Hubicka  <jh@suse.cz>

        * params.def: Revert my accidental commit at 2009-06-30.

2009-07-04  Ian Lance Taylor  <iant@google.com>

        PR target/40636
        * config/i386/msformat-c.c (mingw_format_attributes): Declare as
        EXPORTED_CONST.
        (mingw_format_attribute_overrides): Likewise.

2009-07-04  Jakub Jelinek  <jakub@redhat.com>

        PR debug/40596
        * dwarf2out.c (based_loc_descr): For crtl->stack_realign_tried
        don't check cfa.reg.  Instead of cfa.indirect use
        fde && fde->drap_reg != INVALID_REGNUM test.

2009-07-04  Eric Botcazou  <ebotcazou@adacore.com>

        * postreload.c (reload_combine): Replace CONST_REG with INDEX_REG.

2009-07-03  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/40587
        * ira.c (build_insn_chain): Use DF_LR_OUT instead of df_get_live_out.

2009-07-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40640
        * tree-switch-conversion.c (build_arrays): Perform arithmetic
        in original type.

2009-07-03  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining_incrementally): When optimizing
        for size, reduce amount of inlining.

2009-07-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/34163
        * tree-chrec.c (chrec_convert_1): Fold (T2)(t +- x) to (T2)t +- (T2)x
        if t +- x is known to not overflow and the conversion widens the
        operation.
        * Makefile.in (tree-chrec.o): Add $(FLAGS_H) dependency.

2009-07-03  Jan Hubicka  <jh@suse.cz>

        * ipa-pure-const.c (analyze): Update loop optimizer init.
        * tree-ssa-loop-iv-canon.c (empty_loop_p, remove_empty_loop,
        try_remove_empty_loop, remove_empty_loops): Remove.
        * tree-ssa-loop.c (tree_ssa_empty_loop, pass_empty_loop): Remove.
        * tree-ssa-dce.c (find_obviously_necessary_stmts): Use finiteness info
        to mark regular loops as neccesary.
        (degenerate_phi_p): New function.
        (propagate_necessity, remove_dead_phis): Use it.
        (forward_edge_to_pdom): Likewise.
        (eliminate_unnecessary_stmts): Take care to remove uses of results of
        virtual PHI nodes that became unreachable.
        (perform_tree_ssa_dce): Initialize/deinitialize loop optimizer.
        * tree-flow.h (remove_empty_loops): Remove.
        * passes.c (init_optimization_passes): Remove.

2009-07-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (fix_trunc<mode>_fisttp_i387_1): Use
        can_create_pseudo_p.
        (*fix_trunc<mode>_i387_1): Ditto.
        (*floathi<mode>2_1): Ditto.
        (*float<SSEMODEI24:mode><X87MODEF:mode>2_1): Ditto.
        (*fistdi2_1): Ditto.
        (*fist<mode>2_1): Ditto.
        (frndintxf2_floor): Ditto.
        (*fist<mode>2_floor_1): Ditto.
        (frndintxf2_ceil): Ditto.
        (*fist<mode>2_ceil_1): Ditto.
        (frndintxf2_trunc): Ditto.
        (frndintxf2_mask_pm): Ditto.
        (fxam<mode>2_i387_with_temp): Ditto.
        * config/i386/sse.md (mulv16qi3): Ditto.
        (*sse2_mulv4si3): Ditto.
        (mulv2di3): Ditto.
        (sse4_2_pcmpestr): Ditto.
        (sse4_2_pcmpistr): Ditto.

2009-07-03  Jan Hubicka  <jh@suse.cz>

        * tree-ssa-dce.c (bb_contains_live_stmts): New bitmap.
        (mark_stmt_necessary): Set it.
        (mark_operand_necessary): Set it.
        (mark_control_dependent_edges_necessary): Set it.
        (mark_virtual_phi_result_for_renaming): New function.
        (get_live_post_dom): New function.
        (forward_edge_to_pdom): New function.
        (remove_dead_stmt): Fix handling of control dependences.
        (tree_dce_init): Init new bitmap.
        (tree_dce_done): Free it.

2009-07-02  Richard Guenther  <rguenther@suse.de>

        PR bootstrap/40617
        * tree-ssa-structalias.c (new_var_info): Initialize
        is_restrict_var.

2009-07-02  Jan Hubicka  <jh@suse.cz>

        * ipa-pure-const.c (check_op): Use PTA info to see if indirect_ref is
        local.

2009-07-02  Paolo Bonzini  <bonzini@gnu.org>

        * expmed.c (emit_cstore, emit_store_flag_1): Accept target_mode
        instead of recomputing it.  Adjust calls.
        (emit_store_flag): Adjust recursive calls.

2009-07-02  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-live.c (remove_unused_locals): Do not remove
        heap variables.
        * tree-ssa-structalias.c (handle_lhs_call): Delay setting
        of DECL_EXTERNAL for HEAP variables.
        (compute_points_to_sets): Set DECL_EXTERNAL for escaped
        HEAP variables.  Do not adjust RESTRICT vars.
        (find_what_var_points_to): Nobody cares if something
        points to READONLY.

2009-07-02  Ben Elliston  <bje@au.ibm.com>

        * unwind-dw2-fde-glibc.c (_Unwind_IteratePhdrCallback): Move
        pc_low and pc_high declarations to the top of the function.

2009-07-01  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.c (mep_handle_option): Leave IVC2 control
        registers as fixed.
        (mep_interrupt_saved_reg): Save appropriate IVC2 control registers.
        * config/mep/mep-ivc2.cpu: Add VOLATILE to insns that make
        unspecified accesses to control registers.
        * config/mep/intrinsics.md: Regenerate.
        * config/mep/intrinsics.h: Regenerate.
        * config/mep/mep-intrin.h: Regenerate.

2009-07-01  Anthony Green  <green@moxielogic.com>

        * config/moxie/moxie.c (moxie_expand_prologue): Use dec
        instruction when possible.
        (moxie_expand_prologue): Ditto.  Also, save an instruction and
        some complexity by popping off of $r12 instead of $sp.
        * config/moxie/moxie.md (movsi_pop): Don't assume $sp.  Take two
        operands.

2009-07-01  Richard Henderson  <rth@redhat.com>

        PR bootstrap/40347
        * function.c (reposition_prologue_and_epilogue_notes): If epilogue
        contained no insns, reposition note before last insn.

2009-07-01  Richard Henderson  <rth@redhat.com>

        PR debug/40431
        * dwarf2out.c (def_cfa_1): Revert 2009-06-11 change for
        DW_CFA_def_cfa_offset and DW_CFA_def_cfa.

2009-07-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR bootstrap/40558
        * config/rs6000/rs6000.c (print_operand): Undo change that breaks
        darwin9 for printing reg addresses with %y.

2009-07-01  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (force_to_mode): Handle TRUNCATE.  Factor out
        truncation from operands in binary operations.

2009-07-01  Adam Nemet  <anemet@caviumnetworks.com>

        Revert:
        2009-01-11  Adam Nemet  <anemet@caviumnetworks.com>
        * expmed.c (store_bit_field_1): Properly truncate the paradoxical
        subreg of op0 to the original op0.

        * expmed.c (store_bit_field_1): Use a temporary as the destination
        instead of a paradoxical subreg when we need to truncate the result.

2009-07-01  DJ Delorie  <dj@redhat.com>

        * config/mep/mep-ivc2.cpu (cmov, cmovc, cmovh): Add intrinsic
        names to VLIW variants.
        (ivc2rm, ivc2crn): Make data type consistent with non-VLIW variants.
        * config/mep/intrinsics.md: Regenerate.
        * config/mep/intrinsics.h: Regenerate.
        * config/mep/mep-intrin.h: Regenerate.

2009-07-01  Jakub Jelinek  <jakub@redhat.com>

        PR debug/40462
        * jump.c (returnjump_p): Revert last patch.
        * dwarf2out.c (dwarf2out_begin_epilogue): Handle SEQUENCEs.

2009-07-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/40575
        * pa.md (casesi32p): Use jump table label to determine the offset
        of the jump table.
        (casesi64p): Likewise.

        * pa.c (forward_branch_p): Return bool type.  Use instruction
        addresses when available.  Assert that INSN has a jump label.
        (pa_adjust_insn_length): Don't call forward_branch_p if INSN doesn't
        have a jump label.

2009-07-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/19831
        * tree-ssa-dce.c (propagate_necessity): Calls to functions
        that only act as barriers do not make any previous stores necessary.
        * tree-ssa-structalias.c (handle_lhs_call): Delay making
        HEAP variables global, do not add a constraint from nonlocal.
        (find_func_aliases): Handle escapes through return statements.
        (compute_points_to_sets): Make escaped HEAP variables global.

2009-07-01  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/40597
        * expmed.c (emit_store_flag): Perform a conversion if necessary,
        after reducing a DImode cstore to SImode.

2009-07-01  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (expand_expr_real_1): Reinstate fallthrough to
        TRUTH_ANDIF_EXPR if do_store_flag returns NULL.

2009-07-01  Maciej W. Rozycki  <macro@linux-mips.org>

        * config/vax/vax.h (TARGET_BSD_DIVMOD): New macro.  Set to 1.
        * config/vax/linux.h (TARGET_BSD_DIVMOD): New macro.  Redefine the
        to 0.
        * config/vax/vax.c (vax_init_libfuncs): Only redefine udiv_optab
        and umod_optab if TARGET_BSD_DIVMOD.
        * config/vax/lib1funcs.asm: New file.
        * config/vax/t-linux: New file.
        * config.gcc (vax-*-linux*): Set tmake_file to vax/t-linux.

2009-06-30  Jakub Jelinek  <jakub@redhat.com>

        PR c++/40566
        * convert.c (convert_to_integer) <case COND_EXPR>: Don't convert
        to type arguments that have void type.

        PR debug/40573
        * dwarf2out.c (gen_formal_parameter_die): Call
        equate_decl_number_to_die if node is different from origin.

2009-06-30  Anthony Green  <green@moxielogic.com>

        Clean up moxie port for --enable-build-with-cxx.
        * config/moxie/moxie.c (moxie_function_value): First two
        parameters are const_tree, not tree.
        * config/moxie/moxie.h (enum reg_class): Rename CC_REG to CC_REGS.
        (REG_CLASS_NAMES): Ditto.
        (REGNO_REG_CLASS): Ditto.
        * config/moxie/moxie-protos.h (moxie_override_options): Declare.
        (moxie_function_value): Fix constyness of arguments.

2009-06-30  Eric Botcazou  <ebotcazou@adacore.com>

        * cgraphunit.c (cgraph_finalize_compilation_unit): Call
        finalize_size_functions before further processing.
        * stor-layout.c: Include cgraph.h, tree-inline.h and tree-dump.h.
        (variable_size): Call self_referential_size on size expressions
        that contain a PLACEHOLDER_EXPR.
        (size_functions): New static variable.
        (copy_self_referential_tree_r): New static function.
        (self_referential_size): Likewise.
        (finalize_size_functions): New global function.
        * tree.c: Include tree-inline.h.
        (push_without_duplicates): New static function.
        (find_placeholder_in_expr): New global function.
        (substitute_in_expr) <tcc_declaration>: Return the replacement object
        on equality.
        <tcc_expression>: Likewise.
        <tcc_vl_exp>: If the replacement object is a constant, try to inline
        the call in the expression.
        * tree.h (finalize_size_functions): Declare.
        (find_placeholder_in_expr): Likewise.
        (FIND_PLACEHOLDER_IN_EXPR): New macro.
        (substitute_placeholder_in_expr): Update comment.
        * tree-inline.c (remap_decl): Do not unshare trees if do_not_unshare
        is true.
        (copy_tree_body_r): Likewise.
        (copy_tree_body): New static function.
        (maybe_inline_call_in_expr): New global function.
        * tree-inline.h (struct copy_body_data): Add do_not_unshare field.
        (maybe_inline_call_in_expr): Declare.
        * Makefile.in (tree.o): Depend on TREE_INLINE_H.
        (stor-layout.o): Depend on CGRAPH_H, TREE_INLINE_H, TREE_DUMP_H and
        GIMPLE_H.

2009-06-30  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-dce.c (mark_all_reaching_defs_necessary_1): Always
        continue walking.
        (propagate_necessity): Do not mark reaching defs of stores
        as necessary.

2009-06-30  Jan Hubicka  <jh@suse.cz>

        * cfgloopanal.c (check_irred): Move into ...
        (mark_irreducible_loops): ... here; return true if ireducible
        loops was found.
        * ipa-pure-const.c: Include cfgloop.h and tree-scalar-evolution.h
        (analyze_function): Try to prove loop finiteness.
        * cfgloop.h (mark_irreducible_loops): Update prototype.
        * Makefile.in (ipa-pure-const.o): Add dependency on SCEV and CFGLOOP.

2009-06-30  Basile Starynkevitch  <basile@starynkevitch.net>

        * Makefile.in (PLUGIN_HEADERS): added ggc, tree-dump, pretty-print.

2009-06-30  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/40542
        * tree-vect-stmts.c (vect_analyze_stmt): Don't vectorize volatile 
        types.

2009-06-30  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40582
        * tree-sra.c (build_ref_for_offset_1): Use types_compatible_p rather
        than useless_type_conversion_p.
        (generate_subtree_copies): Increment sra_stats.subtree_copies at a
        proper place.

2009-06-30  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/40554
        * tree-sra.c (sra_modify_expr): Add access->offset to start_offset.

2009-06-30  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (walk_aliased_vdefs_1): Change interface to
        use ao_ref references.
        (walk_aliased_vdefs): Likewise.
        * tree-ssa-alias.h (walk_aliased_vdefs): Adjust prototype.
        * tree-ssa-dce.c (struct ref_data): Remove.
        (mark_aliased_reaching_defs_necessary_1): Use the ao_ref argument.
        (mark_aliased_reaching_defs_necessary): Adjust.
        (mark_all_reaching_defs_necessary_1): Likewise.

2009-06-30  Paolo Bonzini  <bonzini@gnu.org>

        PR boostrap/40597
        * expmed.c (emit_cstore): New name of emit_store_flag_1.
        (emit_store_flag_1): Extract from emit_store_flag, adjust
        calls to (what now is) emit_cstore.
        (emit_store_flag): Call emit_store_flag_1 and also use it
        for what used to be recursive calls.

2009-06-30  Wei Guozhi  <carrot@google.com>

        PR/40416
        * tree-ssa-sink.c (statement_sink_location): Stop sinking expression
        if the target bb post dominates from bb.
        * config/i386/i386.c (memory_address_length): Check existence of base
        register before using it.

2009-06-30  Nick Clifton  <nickc@redhat.com>
            DJ Delorie  <dj@redhat.com>

        * config.sh/lib1funcs.h (FMOVD_WORKS): Only define if
        __FMOVD_ENABLED__ is defined.
        * config/sh/sh.h
        (TARGET_FMOVD): Provide a default definition.
        (MASK_FMOVD): Likewise.
        (TARGET_CPU_CPP_BUILTINS): Define
        __FMOVD_ENABLED__ if TARGET_FMOVD is true.
        * config/sh/sh.md (movdf_i4): For alternative 0 use either one or
        two fmov instructions depending upon whether TARGET_FMOVD is
        enabled.
        (split for DF load from memory into register): Also handle
        MEMs which consist of REG+DISP addressing.
        (split for DF store from register to memory): Likewise.
        * config/sh/sh.opt (mfmovd): Remove this switch.
        * doc/invoke.texi (-mfmovd): Remove documentation of this switch.
        * config/sh/sh.c (sh_override_options): Do not automatically
        enable TARGET_MOVD for the SH2A when supporting doubles - leave
        that to the -mfmovd command line switch.

        * config/sh/sh.c (broken_move): Do not restrict fldi test to only
        the SH4 and SH4A.
        (fldi_ok): Always allow.
        * config/sh/sh.md (movsf_ie): Always use single fp_mode.

2009-06-29  DJ Delorie  <dj@redhat.com>

        * doc/install.texi (mep-x-elf): Correct chip's full name.

2009-06-29  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/extend.texi: Fix typo.

2009-06-29  Tom Tromey  <tromey@redhat.com>

        * dwarf2.h: Remove.
        * Makefile.in (DWARF2_H): New variable.
        (except.o): Use it.
        (dwarf2out.o): Likewise.
        (dwarf2asm.o): Likewise.
        * config/i386/t-i386: Use DWARF2_H.
        * except.c: Include elf/dwarf2.h.
        * unwind-dw2.c: Include elf/dwarf2.h.
        * dwarf2out.c: Include elf/dwarf2.h.
        (dw_loc_descr_struct) <dw_loc_opc>: Now a bitfield.
        <dtprel>: New field.
        (dwarf_stack_op_name): Don't handle INTERNAL_DW_OP_tls_addr.
        (size_of_loc_descr): Likewise.
        (output_loc_operands_raw): Likewise.
        (output_loc_operands): Handle new dtprel field.
        (loc_checksum): Update.
        (loc_descriptor_from_tree_1) <VAR_DDECL>: Set dtprel field.
        * unwind-dw2-fde-glibc.c: Include elf/dwarf2.h.
        * unwind-dw2-fde.c: Include elf/dwarf2.h.
        * dwarf2asm.c: Include elf/dwarf2.h.
        * unwind-dw2-fde-darwin.c: Include elf/dwarf2.h.
        * config/mmix/mmix.c: Include elf/dwarf2.h.
        * config/rs6000/darwin-fallback.c: Include elf/dwarf2.h.
        * config/xtensa/unwind-dw2-xtensa.c: Include elf/dwarf2.h.
        * config/sh/sh.c: Include elf/dwarf2.h.
        * config/i386/i386.c: Include elf/dwarf2.h.

2009-06-29  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.h (CPP_SPEC): Remove __cop macro.

        * doc/extend.texi: Add MeP attributes and pragmas.
        * doc/invoke.text: Add MeP Options.
        * doc/contrib.texi: Add MeP contribution.
        * doc/md.texi: Add MeP constraints.
        * doc/install.texi: Add MeP target.

2009-06-30  Anatoly Sokolov  <aesok@post.ru>

        * target.h (struct gcc_target): Add frame_pointer_required field.
        * target-def.h (TARGET_FRAME_POINTER_REQUIRED): New.
        (TARGET_INITIALIZER): Use TARGET_FRAME_POINTER_REQUIRED.
        * ira.c (setup_eliminable_regset): Use frame_pointer_required target
        hook.
        * reload1.c (update_eliminables): (Ditto.).
        * gcc/system.h (FRAME_POINTER_REQUIRED): Poison.
        * doc/tm.texi (FRAME_POINTER_REQUIRED): Revise documentation.
        (INITIAL_FRAME_POINTER_OFFSET): (Ditto.).

        * config/arc/arc.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/arm/arm.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/arm/arm.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (arm_frame_pointer_required): New function.

        * config/avr/avr.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/avr/avr.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (avr_frame_pointer_required_p): Declare as static.
        * config/avr/avr-protos.h (avr_frame_pointer_required_p): Remove.

        * config/bfin/bfin.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/bfin/bfin.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (bfin_frame_pointer_required): Make as static, change return type
        to bool.
        * config/bfin/bfin-protos.h (bfin_frame_pointer_required): Remove.

        * config/cris/cris.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/cris/cris.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (cris_frame_pointer_required): New function.
        
        * config/crx/crx.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/fr30/fr30.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/fr30/fr30.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (fr30_frame_pointer_required): New function.
        
        * config/frv/frv.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/frv/frv.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (frv_frame_pointer_required): Make as static, change return type
        to bool.
        * config/bfin/bfin-protos.h (frv_frame_pointer_required): Remove.

        * config/i386/i386.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/i386/i386.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (ix86_frame_pointer_required): Make as static, change return type to
        bool.
        * config/i386/i386-protos.h (ix86_frame_pointer_required): Remove.

        * config/m32c/m32c.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/m32c/m32c.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.

        * config/m32r/m32r.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/mcore/mcore.h (CAN_ELIMINATE): Remove macro.
        
        * config/mep/mep.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/mips/mips.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/mips/mips.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (mips_frame_pointer_required): Make as static.
        * config/mips/mips-protos.h (mips_frame_pointer_required): Remove.
        
        * config/mmix/mmix.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/mmix/mmix.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (mmix_frame_pointer_required): Mew function.

        * config/moxie/moxie.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/moxie/moxie.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.

        * config/pa/pa.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/score/score.h (FRAME_POINTER_REQUIRED): Remove macro.

        * config/sh/sh.h (CAN_ELIMINATE): Remove macro.

        * config/sparc/sparc.h (FRAME_POINTER_REQUIRED): Remove macro.
        (CAN_ELIMINATE): Redefine.
        * config/sparc/sparc.c (TARGET_FRAME_POINTER_REQUIRED): Define macro.
        (sparc_frame_pointer_required): New function.
        (sparc_can_eliminate): New function.
        * config/sparc/sparc-protos.h (sparc_can_eliminate): Declare.

        * config/vax/vax.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/vax/vax.c (TARGET_FRAME_POINTER_REQUIRED): Define.

        * config/xtensa/xtensa.h (FRAME_POINTER_REQUIRED): Remove macro.
        * config/xtensa/xtensa.c (TARGET_FRAME_POINTER_REQUIRED): Define.
        (xtensa_frame_pointer_required): Make as static, change return type
        to bool.
        * config/xtensa/xtensa-protos.h (xtensa_frame_pointer_required):
        Remove.

2009-06-29  Olatunji Ruwase  <tjruwase@google.com>

        * doc/plugins.texi: Document PLUGIN_START_UNIT.
        * toplev.c (compile_file): Call PLUGIN_START_UNIT.
        * gcc-plugin.h (PLUGIN_START_UNIT): Added new event.
        * plugin.c (plugin_event_name): Added PLUGIN_START_UNIT.
        (register_callback): Handle PLUGIN_START_UNIT.
        (invoke_plugin_callbacks): Handle PLUGIN_START_UNIT.

2009-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (process_call_operands): Propagate TREE_READONLY from the
        operands.
        (PROCESS_ARG): Do not clear TREE_READONLY if CONSTANT_CLASS_P.
        (build3_stat): Propagate TREE_READONLY for COND_EXPR.

2009-06-29  Daniel Jacobowitz  <dan@codesourcery.com>

        * config/arm/arm.h (REGISTER_MOVE_COST): Increase VFP register
        move cost.

2009-06-29  Uros Bizjak  <ubizjak@gmail.com>

        * doc/extend.texi (Additional Floating Types): __float128 is also
        supported on i386 targets.

2009-06-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/14187
        * tree-ssa-alias.h (struct pt_solution): Add vars_contains_restrict
        flag.
        (pt_solutions_same_restrict_base): Declare.
        * tree-ssa-structalias.c (struct variable_info): Add is_restrict_var
        flag.
        (new_var_info): Initialize is_global_var properly for SSA_NAMEs.
        (make_constraint_from, make_copy_constraint): Move earlier.
        (make_constraint_from_heapvar): New function.
        (make_constraint_from_restrict): Likewise.
        (handle_lhs_call): Use it.
        (find_func_aliases): Use it to track conversions to restrict
        qualified pointers.
        (struct fieldoff): Add only_restrict_pointers flag.
        (push_fields_onto_fieldstack): Initialize it.
        (create_variable_info_for): Track global restrict qualified pointers.
        (intra_create_variable_infos): Use make_constraint_from_heapvar.
        Track restrict qualified pointer arguments.
        (set_uids_in_ptset): Use varinfo is_global_var flag.
        (find_what_var_points_to): Set the vars_contains_restrict flag.
        Always create the points-to solution for sets including restrict tags.
        (pt_solutions_same_restrict_base): New function.
        * tree-ssa-alias.c (ptr_derefs_may_alias_p): For two restrict
        qualified pointers use pt_solutions_same_restrict_base as
        additional source for disambiguation.

2009-06-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/38212
        * alias.c (find_base_decl): Remove.
        (get_deref_alias_set_1): Remove restrict handling.
        * c-common.c (c_apply_type_quals_to_decl): Do not set
        DECL_POINTER_ALIAS_SET.
        * gimplify.c (find_single_pointer_decl_1): Remove.
        (find_single_pointer_decl): Likewise.
        (internal_get_tmp_var): Remove restrict handling.
        (gimple_regimplify_operands): Likewise.
        * omp-low.c (expand_omp_atomic_pipeline): Do not set
        DECL_POINTER_ALIAS_SET. Use ref-all pointers.
        * print-tree.c (print_node): Do not print DECL_POINTER_ALIAS_SET.
        * tree.c (restrict_base_for_decl): Remove.
        (init_ttree): Do not allocate it.
        (make_node_stat): Do not set DECL_POINTER_ALIAS_SET.  Set
        LABEL_DECL_UID for label decls.
        (copy_node_stat): Do not copy restrict information.
        (decl_restrict_base_lookup): Remove.
        (decl_restrict_base_insert): Likewise.
        (print_restrict_base_statistics): Likewise.
        (dump_tree_statistics): Do not call print_restrict_base_statistics.
        * tree.h (DECL_POINTER_ALIAS_SET): Remove.
        (DECL_POINTER_ALIAS_SET_KNOWN_P): Likewise.
        (struct tree_decl_common): Rename pointer_alias_set to label_decl_uid.
        (LABEL_DECL_UID): Adjust.
        (DECL_BASED_ON_RESTRICT_P): Remove.
        (DECL_GET_RESTRICT_BASE): Likewise.
        (SET_DECL_RESTRICT_BASE): Likewise.
        (struct tree_decl_with_vis): Remove based_on_restrict_p flag.

        * config/i386/i386.c (ix86_gimplify_va_arg): Use ref-all pointers
        instead of DECL_POINTER_ALIAS_SET.
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
        * config/s390/s390.c (s390_gimplify_va_arg): Likewise.
        * config/spu/spu.c (spu_gimplify_va_arg_expr): Likewise.

2009-06-29  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40579
        * tree-vrp.c (vrp_evaluate_conditional): Bail out early if
        the IL to simplify has constants that overflowed.

2009-06-28  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/40550
        * tree-vect-generic.c (expand_vector_operations_1): Compute in
        vector_compute_type only when the size of vector_compute_type is
        less than the size of type.

2009-06-28  Eric Botcazou  <ebotcazou@adacore.com>

        * fold-const.c (contains_label_1): Fix comments.
        (contains_label_p): Do not walk trees multiple time.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.h (enum ix86_fpcmp_strategy): New.
        * config/i386/i386.md (cbranchxf4, cstorexf4, cbranch<MODEF>4,
        cstore<MODEF>4, mov<X87MODEF>cc): Change predicate to
        ix86_fp_comparison_operator.
        (*fp_jcc_1_mixed, *fp_jcc_1_sse, *fp_jcc_1_387, *fp_jcc_2_mixed,
        *fp_jcc_2_sse, *fp_jcc_2_387): Delete
        (*fp_jcc_3_387, *fp_jcc_4_387, *fp_jcc_5_387, *fp_jcc_6_387,
        *fp_jcc_7_387, *fp_jcc_8<MODEF>_387): Eliminate call to
        !ix86_use_fcomi_compare, change ix86_fp_jump_nontrivial_p call
        to !TARGET_CMOVE, change predicate to ix86_fp_comparison_operator.
        (related splits): Change predicate to ix86_fp_comparison_operator.
        * config/i386/predicates.md: Use ix86_trivial_fp_comparison_operator
        instead of ix86_fp_comparison_codes.
        (ix86_trivial_fp_comparison_operator,
        ix86_fp_comparison_operator): New.
        * config/i386/i386-protos.h (ix86_fp_comparison_strategy): New.
        (ix86_expand_compare): Eliminate last two parameters.
        (ix86_fp_jump_nontrivial_p): Kill.
        * config/i386/i386.c (put_condition_code): Eliminate call to
        ix86_fp_comparison_codes and subsequent assertion.
        (ix86_fp_comparison_codes): Eliminate.
        (ix86_fp_swap_condition): New.
        (ix86_fp_comparison_arithmetics_cost, ix86_fp_comparison_fcomi_cost,
        ix86_fp_comparison_sahf_cost, ix86_use_fcomi_compare): Consolidate
        into ix86_fp_comparison_cost and ix86_fp_comparison_strategy.
        (ix86_prepare_fp_compare_args): Use ix86_fp_comparison_strategy
        and ix86_fp_swap_condition.
        (ix86_expand_fp_compare): Eliminate code for second jump/bypass jump.
        Use ix86_fp_comparison_strategy.
        (ix86_expand_compare): Likewise.  Eliminate last two arguments.
        (ix86_fp_jump_nontrivial_p): Eliminate.
        (ix86_expand_branch): Treat SFmode/DFmode/XFmode as simple.  Adjust
        call to ix86_expand_compare.
        (ix86_split_fp_branch, ix86_expand_setcc,
        ix86_expand_carry_flag_compare, ix86_expand_int_movcc,
        ix86_expand_fp_movcc): Eliminate code for second jump/bypass jump.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * config/arm/arm.c (arm_final_prescan_ins): Eliminate code
        related to jump_clobbers.
        * config/arm/arm.md (conds): Remove jump_clob case.
        (addsi3_cbranch, addsi3_cbranch_scratch, subsi3_cbranch, two
        splits): Change comparison_operator to arm_comparison_operator.
        (*arm_buneq, *arm_bltgt, *arm_buneq_reversed, *arm_bltgt_reversed):
        Eliminate.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * dojump.c (do_compare_rtx_and_jump): Try swapping the
        condition for floating point modes.
        * expmed.c (emit_store_flag_1): Move here a bigger part
        of emit_store_flag.
        (emit_store_flag): Try swapping the condition for floating point
        modes.
        * optabs.c (emit_cmp_and_jump_insns): Cope with constant op0 better.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * expr.c (expand_expr_real_1): Just use do_store_flag.
        (do_store_flag): Drop support for TRUTH_NOT_EXPR.  Use
        emit_store_flag_force.
        * expmed.c (emit_store_flag_force): Copy here trick
        previously in expand_expr_real_1.  Try reversing the comparison.
        (emit_store_flag_1): Work if target is NULL.
        (emit_store_flag): Work if target is NULL, using the result mode
        from the comparison.  Use split_comparison, restructure final part
        to simplify conditionals.

2009-06-28  Paolo Bonzini  <bonzini@gnu.org>

        * builtins.c (expand_errno_check): Use do_compare_rtx_and_jump.
        * dojump.c (do_jump): Change handling of floating-point
        ops to use just do_compare_and_jump.
        (split_comparison): New.
        (do_compare_rtx_and_jump): Add here logic coming previously
        in do_jump, using split_comparison.

2009-06-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/40489
        * config/ia64/ia64.c (ia64_reorg): Check NULL insn.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * tree-ssa-alias.c: Fix unintentional commit.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * passes.c (execute_one_pass): Fix unintentional commit.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * df-problems.c (df_set_seen, df_unset_seen): Delete.
        (df_rd_local_compute, df_md_local_compute): Inline them.

        (df_md_scratch): New.
        (df_md_alloc, df_md_free): Allocate/free it.
        (df_md_local_compute): Only include live registers in init.
        (df_md_transfer_function): Prune the in-set computed by
        the confluence function, and the gen-set too.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/26854
        * timevar.def: Remove TV_DF_RU, add TV_DF_MD.
        * df-problems.c (df_rd_add_problem): Fix comment.
        (df_md_set_bb_info, df_md_free_bb_info, df_md_alloc,
        df_md_simulate_artificial_defs_at_top,
        df_md_simulate_one_insn, df_md_bb_local_compute_process_def,
        df_md_bb_local_compute, df_md_local_compute, df_md_reset,
        df_md_transfer_function, df_md_init, df_md_confluence_0,
        df_md_confluence_n, df_md_free, df_md_top_dump, df_md_bottom_dump,
        problem_MD, df_md_add_problem): New.
        * df.h (DF_MD, DF_MD_BB_INFO, struct df_md_bb_info, df_md,
        df_md_get_bb_info): New.
        (DF_LAST_PROBLEM_PLUS1): Adjust.

        * Makefile.in (fwprop.o): Include domwalk.h.
        * fwprop.c: Include domwalk.h.
        (reg_defs, reg_defs_stack): New.
        (bitmap_only_bit_between): Remove.
        (process_defs): New.
        (process_uses): Use reg_defs and local_md instead of
        bitmap_only_bit_between and local_rd.
        (single_def_use_enter_block): New, from build_single_def_use_links.
        (single_def_use_leave_block): New.
        (build_single_def_use_links): Remove code moved to
        single_def_use_enter_block, invoke domwalk.
        (use_killed_between): Adjust comment.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * bitmap.h (bitmap_ior_and_into): New.
        * bitmap.c (bitmap_ior_and_into): New.

2009-06-27  Paolo Bonzini  <bonzini@gnu.org>

        * domwalk.h (struct dom_walk_data): Remove all callbacks except
        before_dom_children_before_stmts and after_dom_children_after_stmts.
        Rename the two remaining callbacks to just before_dom_children and 
        after_dom_children. Remove other GIMPLE statement walking bits.
        * domwalk.c (walk_dominator_tree): Remove now unsupported features.
        * graphite.c: Do not include domwalk.h.
        * tree-into-ssa.c (interesting_blocks): New global.
        (struct mark_def_sites_global_data): Remove it and names_to_rename.
        (mark_def_sites, rewrite_stmt, rewrite_add_phi_arguments,
        rewrite_update_stmt, rewrite_update_phi_arguments): Simplify
        now that they're not domwalk callbacks.
        (rewrite_initialize_block): Rename to...
        (rewrite_enter_block): ... this, place after called functions.  Test
        interesting_blocks, call rewrite_stmt and rewrite_add_phi_arguments.
        (rewrite_finalize_block): Rename to...
        (rewrite_leave_block): ... this, place after called functions.
        (rewrite_update_init_block): Rename to...
        (rewrite_update_enter_block): ... this, place after called functions.
        Test interesting_blocks, call rewrite_update_stmt and 
        rewrite_update_phi_arguments.
        (rewrite_update_fini_block): Rename to...
        (rewrite_leave_block): ... this, place after called functions.
        (rewrite_blocks): Remove last argument, simplify initialization of
        walk_data.
        (mark_def_sites_initialize_block): Rename to...
        (mark_def_sites_block): ... this, call mark_def_sites.
        (mark_def_sites_blocks): Remove argument, simplify initialization of
        walk_data.
        (rewrite_into_ssa): Adjust for interesting_blocks_being a global.
        (update_ssa): Likewise.
        * tree-ssa-dom.c (optimize_stmt): Simplify now that it's not a domwalk
        callback.
        (tree_ssa_dominator_optimize): Simplify initialization of walk_data.
        (dom_opt_initialize_block): Rename to...
        (dom_opt_enter_block): ... this, place after called functions.  Walk
        statements here, inline propagate_to_outgoing_edges.
        (dom_opt_finalize_block): Rename to...
        (dom_opt_leave_block): ... this, place after called functions.
        * tree-ssa-dse.c (dse_optimize_stmt): Simplify now that it's not a
        domwalk callback.
        (dse_enter_block, dse_record_phi): New.
        (dse_record_phis): Delete.
        (dse_finalize_block): Rename to...
        (dse_leave_block): ... this.
        (tree_ssa_dse): Simplify initialization of walk_data.
        * tree-ssa-loop-im.c (determine_invariantness, move_computations):
        Adjust initialization of walk_data.
        * tree-ssa-loop-unswitch.c: Do not include domwalk.h.
        * tree-ssa-loop-phiopt.c (get_non_trapping):
        Adjust initialization of walk_data.
        * tree-ssa-loop-threadedge.c: Do not include domwalk.h.
        * tree-ssa-uncprop.c (uncprop_into_successor_phis): Simplify now that
        it's not a domwalk callback.
        (uncprop_initialize_block): Rename to...
        (dse_enter_block): ... this, call uncprop_into_successor_phis.
        (dse_finalize_block): Rename to...
        (dse_leave_block): ... this.
        (tree_ssa_uncprop): Simplify initialization of walk_data.
        * Makefile.in: Adjust dependencies.

2009-06-27  Richard Earnshaw  <rearnsha@arm.com>

        * arm.md (casesi): Fix test for Thumb1.
        (thumb1_casesi_internal_pic): Likewise.
        (thumb1_casesi_dispatch): Likewise.

2009-06-26  Daniel Gutson  <dgutson@codesourcery.com>

        * config/arm/arm-cores.def: Added core cortex-m0.
        * config/arm/arm-tune.md: Regenerated.
        * doc/invoke.texi: Added entry for cpu ARM Cortex-M0.

2009-06-26  DJ Delorie  <dj@redhat.com>

        * config/mep/mep.opt (mfar): Remove -mfar as it doesn't do anything.

        * config/mep/mep.c (mep_bundle_insns): Account for the fact that
        the scheduler doesn't tag jump insns.

2009-06-26  H.J. Lu  <hongjiu.lu@intel.com>

        * c-decl.c (merge_decls): Re-indent.

2009-06-26  Janis Johnson  <janis187@us.ibm.com>

        PR c/39902
        * tree.c (real_zerop, real_onep, real_twop, real_minus_onep):
        Special-case decimal float constants.

2009-06-26  Richard Henderson  <rth@redhat.com>

        * function.h (struct function): Add cannot_be_copied_reason,
        and cannot_be_copied_set.
        * tree-inline.c (has_label_address_in_static_1): Rename from
        inline_forbidden_p_2; don't set inline_forbidden_reason here.
        (cannot_copy_type_1): Rename from inline_forbidden_p_op; likewise
        don't set inline_forbidden_reason.
        (copy_forbidden): New function, split out of inline_forbidden_p.
        (inline_forbidden_p_stmt): Don't check for nonlocal labels here.
        (inline_forbidden_p): Use copy_forbidden.
        (tree_versionable_function_p): Likewise.
        (inlinable_function_p): Merge into tree_inlinable_function_p.
        (tree_function_versioning): Remap cfun->nonlocal_goto_save_area.
        * ipa-cp.c (ipcp_versionable_function_p): New function.
        (ipcp_cloning_candidate_p): Use it.
        (ipcp_node_modifiable_p): Likewise.

2009-06-26  Olatunji Ruwase  <tjruwase@google.com>

        * builtins.c (expand_builtin_alloca): Handle builtin alloca
        that is marked not to be inlined. Remove flag_mudflap use.
        * tree-mudflap.c: Rename mf_xform_derefs to mf_xfrom_statements.
        (mf_xform_statements): Mark builtin alloca calls as un-inlineable.

2009-06-26  Steve Ellcey  <sje@cup.hp.com>

        PR bootstrap/40338
        * config/pa/t-pa-hpux10 (TARGET_LIBGCC2_CFLAGS): Add -frandom-seed.
        * config/pa/t-pa-hpux11 (TARGET_LIBGCC2_CFLAGS): Ditto.

2009-06-26  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/mingw-tls.c (__mingwthr_key_dtor): Remove for none
        shared libgcc.
        (__mingwthr_remove_key_dtor): Likewise.

2009-06-26  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (do_ds_constraint): Simplify escape handling.

2009-06-26  Steven Bosscher  <steven@gcc.gnu.org>

        PR middle-end/40525
        * ifcvt.c (dead_or_predicable): If predicating MERGE_BB fails,
        try the non-cond_exec path also.

2009-06-25  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/40468
        * pa.c (branch_to_delay_slot_p, branch_needs_nop_p): New functions.
        (output_cbranch): Use new functions.
        (output_lbranch, output_bb, output_bvb, output_dbra, output_movb):
        Likewise.

2009-06-25  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Pat Haugen  <pthaugen@us.ibm.com>
            Revital Eres <ERES@il.ibm.com>

        * config/rs6000/rs6000.c (print_operand): Correct lossage message
        for %c error.  Add %x support to print VSX registers as a unified
        register set, instead of separate float and altivec registers.
        Switch to use VECTOR_MEM_ALTIVEC_P instead of TARGET_ALTIVEC for
        %y case, and add support for VSX pre-modify addresses.
        (output_toc): Add assert for CONST containing an integer constant
        in the PLUS case.
        (rs6000_adjust_cost): Add POWER7 support.
        (insn_must_be_first_in_group): Ditto.
        (insn_must_be_last_in_group): Ditto.
        (rs6000_emit_popcount): Ditto.
        (rs6000_vector_mode_supported_p): Ditto.

        * config/rs6000/rs6000-protos.h (rs6000_secondary_reload_class):
        Change some of the functions called by macros to being called
        through a pointer, so debug functions can be inserted if
        -mdebug=addr or -mdebug=cost. 
        (rs6000_preferred_reload_class_ptr): Ditto.
        (rs6000_secondary_reload_class_ptr): Ditto.
        (rs6000_secondary_memory_needed_ptr): Ditto.
        (rs6000_cannot_change_mode_class_ptr): Ditto.
        (rs6000_secondary_reload_inner): Ditto.
        (rs6000_legitimize_reload_address): Ditto.
        (rs6000_legitimize_reload_address_ptr): Ditto.
        (rs6000_mode_dependent_address): Ditto.
        (rs6000_mode_dependent_address_ptr): Ditto.

        * config/rs6000/rs6000.c (reg_offset_addressing_ok_p): New
        function to return true if the mode allows reg + integer
        addresses.
        (virtual_stack_registers_memory_p): New function to return true if
        the address refers to a virtual stack register.
        (rs6000_legitimate_offset_address_p): Move code to say whether a
        mode supports reg+int addressing to reg_offset_addressing_ok_p and
        call it.
        (rs6000_legitimate_address_p): Add checks for modes that only can
        do reg+reg addressing.  Start adding VSX support.
        (rs6000_legitimize_reload_address): Ditto.
        (rs6000_legitimize_address): Ditto.
        (rs6000_debug_legitimate_address_p): New debug functions for
        -mdebug=addr and -mdebug=cost.
        (rs6000_debug_rtx_costs): Ditto.
        (rs6000_debug_address_costs): Ditto.
        (rs6000_debug_adjust_cost): Ditto.
        (rs6000_debug_legitimize_address): Ditto.
        (rs6000_legitimize_reload_address_ptr): Point to call normal
        function or debug function.  Make functions called via pointer
        static.
        (rs6000_mode_dependent_address_ptr): Ditto.
        (rs6000_secondary_reload_class_ptr): Ditto.
        (rs6000_hard_regno_mode_ok): Add preliminary VSX support.
        (rs6000_emit_move): Add -mdebug=addr support.  Change an abort
        into a friendlier error.
        (rs6000_init_builtins): Add initial VSX support.
        (rs6000_adjust_cost): Fix some spacing issues.

        * config/rs6000/rs6000.h (enum reg_class): Add VSX_REGS.
        (REG_CLASS_NAMES): Ditto.
        (REG_CLASS_CONTENTS): Ditto.
        (PREFERRED_RELOAD_CLASS): Move from a macro to calling through a
        pointer, to add -mdebug=addr support.
        (CANNOT_CHANGE_MODE_CLASS): Ditto.
        (SECONDARY_RELOAD_CLASS): Call through a pointer to add
        -mdebug=addr support.
        (LEGITIMIZE_RELOAD_ADDRESS): Ditto.
        (GO_IF_MODE_DEPENDENT_ADDRESS): Ditto.
        (enum rs6000_builtins): Add RS6000_BUILTIN_BSWAP_HI.

        * config/rs6000/rs6000.md (bswaphi*): Add support for swapping
        16-bit values.
        (bswapsi*): Set attribute types for load/store.  Add combiner
        patterns to eliminate zero extend on 64-bit.
        (bswapdi*): Add support for swapping 64-bit values.  Use ldbrx and
        stdbrx if the hardware supports those instructions.

2009-06-25  Ian Lance Taylor  <iant@google.com>

        * doc/invoke.texi (Option Summary): Mention -static-libstdc++.
        (Link Options): Document -static-libstdc++.

2009-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR target/38731
        * config/rs6000/rs6000.c (LOCAL_ALIGNMENT): Redefine to just use
        DATA_ALIGNMENT instead.

2009-06-25  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Disambiguate
        indirect references against the callused/escaped solutions.
        (call_may_clobber_ref_p_1): Likewise.

2009-06-25  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40493
        * tree-sra.c (sra_modify_expr): Correct BIT_FIELD_REF argument numbers.
        (enum unscalarized_data_handling): New type.
        (handle_unscalarized_data_in_subtree): Return what has been done.
        (load_assign_lhs_subreplacements): Handle left flushes differently.
        (sra_modify_assign): Use unscalarized_data_handling, simplified
        condition determining whether to remove the statement.

2009-06-25  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/plugins.texi (Building GCC plugins): Correct typo in Makefile
        excerpt - @ should be doubled for texinfo.

2009-06-24  Ian Lance Taylor  <iant@google.com>

        * config/arc/arc.c: Include "df.h".
        (arc_attribute_table): Make static.  Move higher in file.
        (arc_address_cost): Call SMALL_INT on INTVAL, not rtx.
        (output_shift): Initialize n later to avoid warning.
        * config/arm/arm.c (arm_attribute_table): Make static.  Move
        higher in file.
        * config/avr/avr.c (avr_attribute_table): Make static.  Move
        higher in file.
        (reg_class_tab): Change array type from int to enum reg_class.
        (avr_jump_mode): Change GET_MODE to GET_CODE when checking for
        LABEL_REF.
        (out_tsthi, ashlhi3_out): Don't use AS2 with "or" or "and".
        (lshrhi3_out): Likewise.
        (class_likely_spilled_p): Change return type to bool.
        (avr_rtx_costs): Use local code variable with enum type.
        * config/avr/avr.md (movmemhi): Use add_reg_note.
        (andhi3, andsi3): Don't use AS2 with "and".
        (iorhi3, iorsi3): Don't use AS2 with "or".
        * config/avr/avr-protos.h (class_likely_spilled_p): Update declaration.
        * config/crx/crx.c: Include "df.h".
        (crx_attribute_table): Make static.
        * config/m32r/m32r.c: Include "df.h".
        (m32r_attribute_table): Make static.  Move higher in file.
        (pop): Use add_reg_note.
        (block_move_call): Change 0 to LCT_NORMAL in function call.
        * config/m32r/m32r.md (movsi_insn): Remove unused local value.
        * config/m32r/m32r.h (INITIALIZE_TRAMPOLINE): Likewise.
        * config/m32r/m32r-protos.h (m32r_compute_function_type): Always
        declare, not just when TREE_CODE is defined.
        * config/m68hc11/m68hc11.c: Include "expr.h".
        (m68hc11_attribute_table): Make static.  Move higher in file.
        (m68hc11_small_indexed_indirect_p): Change 0 to VOIDmode in
        function call.
        (m68hc11_register_indirect_p): Likewise.
        (m68hc11_function_arg_padding): Change return type to enum
        direction.
        (emit_move_after_reload): Use add_reg_note.
        (m68hc11_emit_logical): Change code parameter to enum rtx_code.
        (m68hc11_split_logical): Likewise.
        (m68hc11_rtx_costs): Add local code_and outer_code variables with
        enum type.
        * config/m68hc11/predicates.md (reg_or_some_mem_operand): Change 0
        to VOIDmode in function call.
        * config/m68hc11/m68hc11-protos.h: Don't check TREE_CODE to see if
        tree is defined.
        (m68hc11_split_logical): Update declaration.
        (m68hc11_function_arg_padding): Update declaration.
        * config/mcore/mcore.c (regno_reg_class): Change form array of int
        to array of enum reg_class.
        (mcore_attribute_table): Make static.  Move higher in file.
        (mcore_rtx_costs): Add cast to enum type.
        * config/mcore/mcore.h (regno_reg_class): Update declaration.
        (GO_IF_LEGITIMATE_INDEX): Add cast to avoid warning.
        * config/sh/sh.c (sh_attribute_table): Make static.  Move higher
        in file.
        * config/sh/predicates.md (trapping_target_operand): Rename and to
        and_expr.
        * config/sparc/sparc.c (sparc_attribute_table): Make static.  Move
        higher in file.
        * config/spu/spu.c (spu_attribute_table): Make static.  Move
        higher in file.
        * config/v850/v850.c (v850_attribute_table): Make static.  Move
        higher in file.
        (v850_rtx_costs): Use local code with enum type.
        (expand_epilogue): Add cast.
        * config/v850/v850-c.c (ghs_pragma_section): Initialize repeat.

2009-06-23  Takashi YOSHII  <yoshii.takashi@renesas.com>

        PR target/40515
        * doc/invoke.texi (SH Options): Document -m2a, -m2a-single,
        -m2a-single-only and -m2a-nofpu.
        * config/sh/sh.opt: Document m2a generates FPU code.  

2009-06-24  Anatoly Sokolov  <aesok@post.ru>

        * defaults.h (CAN_ELIMINATE): Provide default.
        * doc/tm.texi (CAN_ELIMINATE): Revise documentation.
        * config/alpha/alpha.h (CAN_ELIMINATE): Delete.
        * config/m32c/m32c.h (CAN_ELIMINATE): Delete.
        * config/spu/spu.h (CAN_ELIMINATE): Delete.
        * config/xtensa/xtensa.h (CAN_ELIMINATE): Delete.
        * config/moxie/moxie.h (CAN_ELIMINATE): Delete.
        * config/cris/cris.h (CAN_ELIMINATE): Delete.
        * config/mn10300/mn10300.h (CAN_ELIMINATE): Delete.
        * config/pa/pa64-linux.h (CAN_ELIMINATE): Delete.
        * config/mmix/mmix.h (CAN_ELIMINATE): Delete.

2009-06-24  DJ Delorie  <dj@redhat.com>

        * mep-ext-cop.cpu: Fix copyright notice.
        * mep-default: Fix copyright notice.
        * mep-core: Fix copyright notice.
        * mep: Fix copyright notice.
        * mep-ivc2: Fix copyright notice.
        * mep-c5: Fix copyright notice.

2009-06-24  Denis Chertykov  <chertykov@gmail.com>

        * doc/contrib.texi (Contributors): 

2009-06-24  Andreas Krebbel  <krebbel1@de.ibm.com>
        
        PR middle-end/40501
        * tree-ssa-math-opts.c (execute_optimize_bswap): Convert the bswap
        src and dst operands if necessary.

2009-06-23  DJ Delorie  <dj@redhat.com>

        Add MeP port.
        * config.gcc: Add mep support.
        * recog.c: Resurrect validate_replace_rtx_subexp().
        * recog.h: Likewise.
        * config/mep/: Add new port:
        * config/mep/constraints.md: New file.
        * config/mep/default.h: New file.
        * config/mep/intrinsics.h: New file.
        * config/mep/intrinsics.md: New file.
        * config/mep/ivc2-template.h: New file.
        * config/mep/mep-c5.cpu: New file.
        * config/mep/mep-core.cpu: New file.
        * config/mep/mep-default.cpu: New file.
        * config/mep/mep-ext-cop.cpu: New file.
        * config/mep/mep-intrin.h: New file.
        * config/mep/mep-ivc2.cpu: New file.
        * config/mep/mep-lib1.asm: New file.
        * config/mep/mep-lib2.c: New file.
        * config/mep/mep-pragma.c: New file.
        * config/mep/mep-protos.h: New file.
        * config/mep/mep-tramp.c: New file.
        * config/mep/mep.c: New file.
        * config/mep/mep.cpu: New file.
        * config/mep/mep.h: New file.
        * config/mep/mep.md: New file.
        * config/mep/mep.opt: New file.
        * config/mep/predicates.md: New file.
        * config/mep/t-mep: New file.

2009-06-23  Ian Lance Taylor  <iant@google.com>

        * configure.ac: Invoke AC_PROG_CXX.  Separate C specific warnings
        from loose_warn into c_loose_warn and from strict_warn into
        c_strict_warn.  Set and substitute warn_cxxflags.  Check for
        --enable-build-with-cxx.  Set and substitute
        ENABLE_BUILD_WITH_CXX.  Set and substitute HOST_LIBS.
        * Makefile.in (CXXFLAGS): New variable.
        (C_LOOSE_WARN, C_STRICT_WARN): New variables.
        (GCC_WARN_CFLAGS): Add $(C_LOOSE_WARN).  Add $(C_STRICT_WARN) if
        the default is the same as $(STRICT_WARN).
        (GCC_WARN_CXXFLAGS, WARN_CXXFLAGS): New variables.
        (CXX): New variable.
        (COMPILER): New value if ENABLE_BUILD_WITH_CXX.
        (COMPILER_FLAGS, LINKER, LINKER_FLAGS): Likewise.
        (ALL_COMPILERFLAGS, ALL_LINKERFLAGS): Likewise.
        (HOST_LIBS): New variable.
        (GCC_CFLAGS): Add $(C_LOOSE_WARN).
        (ALL_CXXFLAGS): New variable.
        (LIBS, BACKENDLIBS): Add $(HOST_LIBS).
        * doc/install.texi (Configuration): Document
        --enable-build-with-cxx, --with-stage1-ldflags,
        --with-stage1-libs, --with-boot-ldflags, --with-boot-libs.
        * configure: Rebuild.

2009-06-24  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/arm/arm.c (arm_override_options): Fix braces and formatting
        from previous commit.

2009-06-23  Ian Lance Taylor  <iant@google.com>

        * Makefile.in ($(out_object_file)): Depend upon $(DF_H).

2009-06-23  Ian Lance Taylor  <iant@google.com>

        * reload.c (alternative_allows_const_pool_ref): Mark mem parameter
        with ATTRIBUTE_UNUSED.

2009-06-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Pat Haugen  <pthaugen@us.ibm.com>
            Revital Eres  <eres@il.ibm.com>

        * config.in (HAVE_AS_POPCNTD): Add default definition.
        (HAVE_AS_LWSYNC): Ditto.

        * configure.ac (gcc_cv_as_powerpc_mfpgpr): Provide real binutils
        release number.
        (gcc_cv_as_powerpc_cmpb): Ditto.
        (gcc_cv_as_powerpc_dfp): Ditto.
        (gcc_cv_as_powerpc_vsx): Ditto.
        (gcc_cv_as_powerpc_popcntd): Add feature test for assembler
        supporting the popcntd/lwsync instructions.
        (gcc_cv_as_powerpc_lwsync): Ditto.
        * configure: Regenerate.

        * config/rs6000/aix53.h (ASM_CPU_SPEC): Add support for
        -mcpu=native and -mcpu=power7.
        * config/rs6000/aix61.h (ASM_CPU_SPEC): Ditto.

        * config/rs6000/linux64.opt (-mprofile-kernel): Move switch to be
        a variable instead of a mask to reduce the number of mask bits.
        * config/rs6000/sysv4.opt (-mbit-align): Ditto.
        (-mbit-word): Ditto.
        (-mregnames): Ditto.
        * config/rs6000/rs6000.opt (-mupdate): Ditto.
        (-mfused-madd): Ditto.

        * config/rs6000/rs6000.opt (-mpopcntd): New switch for non-VSX ISA
        2.06 instructions.
        (-mvsx): New switch for VSX instructions.
        (-misel): Move from a variable to a mask to allow it to be set by
        -mcpu=.

        * config/rs6000/rs6000-protos.h (rs6000_hard_regno_nregs): Change
        function declaration to an array declaration.
        (rs6000_hard_regno_nregs): New external array declaration.

        * config/rs6000/t-rs6000 (MD_INCLUDES): Define, add all of the .md
        files included by rs6000.md.

        * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Use
        SET_PROFILE_KERNEL macro to reset the -mprofile-kernel switch.

        * config/rs6000/rs6000.c (rs6000_isel): Delete, -misel moved to be
        a target mask.
        (rs6000_debug_reg): New -mdebug= variables.
        (rs6000_debug_addr): Ditto.
        (rs6000_debug_cost): Ditto.
        (rs6000_pmode): New variable to hold Pmode.
        (rs6000_pointer_size): New variable to hold POINTER_SIZE.
        (rs6000_class_max_nregs): New array to hold CLASS_MAX_NREGS
        calculated at compiler start.
        (rs6000_hard_regno_nregs): Change function to an array which holds
        HARD_REGNO_NREGS calculated at compiler start.
        (rs6000_explicit_options): Delete isel field.
        (rs6000_vector_unit): New array to hold which vector unit
        supports arithmetic options for a given type.
        (rs6000_vector_mem): New array to hold which vector unit supports
        memory reference operations for a given type.
        (rs6000_vector_align): New array to given the alignment of each
        vector type.
        (power7_cost): New basic costs for power7.
        (SET_PROFILE_KERNEL): New macro for resetting -mprofile-kernel.
        (rs6000_hard_regno_nregs_internal): New function, moved from
        HARD_REGNO_NREGS, to calculate the number of registers each hard
        register takes for each type.
        (rs6000_debug_reg_print): New function for -mdebug=reg support.
        (rs6000_debug_vector_unit): New array, map rs6000_vector to string.
        (+rs6000_init_hard_regno_mode_ok): New function, move calculation
        of HARD_REGNO_NREGS, CLASS_MAX_NREGS, REGNO_REG_CLASS, and vector
        unit information here so it is calculated once at compiler startup
        time.
        (rs6000_override_options): Make -misel a target mask.  Add more
        power7 target masks.  Setup Pmode and POINTER_SIZE.  Add initial
        VSX support.  Add support for -mdebug=reg, -mdebug=addr, and
        -mdebug=cost.
        (POWERPC_MASKS): Add MASK_POPCNTD, MASK_VSX, and MASK_ISEL.
        (rs6000_handle_option): Move -misel from variable to target mask.
        (rs6000_builtin_mask_for_load): Add VSX support.
        (rs6000_conditional_register_usage): Ditto.
        (USE_ALTIVEC_FOR_ARG_P): Ditto.
        (function_arg_boundary): Ditto.
        (rs6000_expand_builtin): Ditto.
        (def_builtin): Make abort message a little friendlier.
        (rs6000_emit_int_cmove): Add support for 64-bit isel.

        * config/rs6000/rs6000.h (ASM_CPU_POWER7_SPEC): Depend on the
        assembler support the popcntd instruction instead of a vsx
        instruction to enable power7 support.
        (ASM_CPU_SPEC): Add support for -mcpu=native and -mcpu=power7.
        (EXTRA_SPECS): Add ASM_CPU_NATIVE_SPEC to allow passing the right
        option to the assembler if -mcpu=native.
        (ASM_CPU_NATIVE_SPEC): Ditto.
        (TARGET_POPCNTD): If assembler doesn't support popcntd, turn off
        ISA 2.06 features.
        (TARGET_LWSYNC_INSTRUCTION): Define whether it is safe to issue
        the lwsync instruction.
        (enum processor_type): Add PROCESSOR_POWER7.
        (rs6000_debug_reg): New -mdebug= options.
        (rs6000_debug_addr): Ditto.
        (rs6000_debug_cost): Ditto.
        (rs6000_isel): Delete.
        (enum rs6000_vector): New enum to say what vector unit we have.
        (VECTOR_UNIT_*): New macros to say which vector unit has
        arithmetic operations for a given type.
        (VECTOR_MEM_*): New macros to say which vector unit has memory
        operations for a given type.
        (TARGET_LDBRX): Whether the machine supports the ldbrx
        instruction.
        (TARGET_ISEL): Delete, -misel moved to be a mask.
        (TARGET_ISEL64): New macro for 64-bit isel support.
        (UNITS_PER_VSX_WORD): New macro.
        (POINTER_SIZE): Move to be an external variable, rather than
        calculating whether we are generating 32 ot 64-bit code.
        (Pmode): Ditto.
        (STACK_BOUNDARY): Add VSX support.
        (LOCAL_ALIGNMENT): Ditto.
        (SLOW_UNALIGNED_ACCESS): Ditto.
        (VSX_REGNO_P): New macro for VSX support.
        (VFLOAT_REGNO_P): Ditto.
        (VINT_REGNO_P): Ditto.
        (VLOGICAL_REGNO_P): Ditto.
        (VSX_VECTOR_MODE): Ditto.
        (VSX_SCALAR_MODE): Ditto.
        (VSX_MODE): Ditto.
        (VSX_MOVE_MODE): Ditto.
        (VSX_REG_CLASS_P): Ditto.
        (HARD_REGNO_NREGS): Instead of calling a function, use an array
        lookup.
        (UNITS_PER_SIMD_WORD): Add VSX support.
        (MODES_TIEABLE_P): Ditto.
        (STARTING_FRAME_OFFSET): Ditto.
        (STACK_DYNAMIC_OFFSET): Ditto.
        (EPILOGUE_USES): Ditto.
        (REGNO_REG_CLASS): Move to array lookup.
        (CLASS_MAX_NREGS): Ditto.
        (rs6000_vector_reg_class): Add declaration.
        (ADDITIONAL_REGISTER_NAMES): Add VSX names for the registers that
        overlap with the floating point and Altivec registers.

        * config/rs6000/e500.h (CHECK_E500_OPTIONS): Disallow -mvsx.

        * config/rs6000/driver-rs6000.c (asm_names): New static array to
        give the appropriate asm switches if -mcpu=native.
        (host_detect_local_cpu): Add support for "asm".
        (host_detect_local_cpu): Follow GNU code guidelines for name.

        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Move
        -mbit-word to a variable instead of being a target mask.

        * config/rs6000/sync.md (lwsync): If the assembler supports it,
        emit the lwsync instruction instead of emitting the instruction as
        an integer constant.

        * config/rs6000/spe.md (spe_fixuns_truncdfsi2): Rename from
        fixuns_trundfsi2, move expander into rs6000.md.

        * config/rs6000/rs6000.md (cpu): Add power7.
        (sel, *ptrsize): New mode attributes for 32/64-bit isel.
        (logical predicate patterns): Change the single instruction
        primitives that set CR0 to be fast_compare instead of compare.
        (norsi*): Ditto.
        (popcntwsi2): Add support for ISA 2.06 popcount instructions.
        (popcntddi2): Ditto.
        (popcount<mode>): Ditto.
        (floating multiply/add insns): Name the floating point
        multiply/add insns.
        (isel_signed_<mode>): Add support for -misel on 64-bit systems.
        (isel_unsigned_<mode>): Ditto.
        (fixuns_trundfsi2): Move expander here from spe.md.
        (smindi3): Define if we have -misel on 64-bit systems.
        (smaxdi3): Ditto.
        (umindi3): Ditto.
        (umaxdi3): Ditto.

2009-06-23  Anatoly Sokolov  <aesok@post.ru>

        * config.gcc (avr-*-rtems*, avr-*-*): Set extra_gcc_objs and
        extra_objs.
        * config/avr/avr.c (avr_current_device): New variable.
        (avr_arch_types, avr_mcu_types): Move to avr-deveces.c.
        (avr_arch, mcu_type_s): Move to avr.h.
        * config/avr/avr.h (base_arch_s). Add reserved2, arch_name and
        default_data_section_start fields.
        (avr_arch): Moved from avr.c.
        (mcu_type_s): Moved from avr.c. Add short_sp, data_section_start and
        library_name fields.
        (avr_current_device, avr_mcu_types, avr_arch_types,
        avr_device_to_arch, avr_device_to_data_start,
        avr_device_to_startfiles, avr_device_to_devicelib): Declare.
        (EXTRA_SPEC_FUNCTIONS): Define.
        (LINK_SPEC): Remove device name to '-m ...' and '-Tdata ...' linker
        options mapping. Use device_to_arch and device_to_data_start insted.
        (STARTFILE_SPEC): Use device_to_startfile instead of crt_binutils.
        (CRT_BINUTILS_SPECS, EXTRA_SPECS): Remove.
        * config/avr/t-avr (driver-avr.o, avr-devices.o): New rules.
        * config/avr/driver-avr.c: New file.
        * config/avr/avr-devices.c: New file.

2009-06-23  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (unshare_variable): Force initialized to
        be VAR_INIT_STATUS_INITIALIZED unless flag_var_tracking_uninit.
        (set_variable_part): Likewise.
        (struct variable_union_info): Remove pos_src field.
        (vui_vec, vui_allocated): New variables.
        (variable_union): Pass VAR_INIT_STATUS_UNKNOWN to unshare_variable
        unconditionally.  Avoid XCVECNEW/free for every sorting, for dst_l
        == 1 use a simpler sorting algorithm.  Compute pos field right
        away, don't fill in pos_src.  For dst_l == 2 avoid qsort.
        Avoid quadratic comparison if !flag_var_tracking_uninit.
        (variable_canonicalize): Pass VAR_INIT_STATUS_UNKNOWN to
        unshare_variable unconditionally.   
        (dataflow_set_different_2): Removed.
        (dataflow_set_different): Don't traverse second hash table.
        (compute_bb_dataflow): Pass VAR_INIT_STATUS_UNINITIALIZED
        unconditionally to var_reg_set or var_mem_set.
        (emit_notes_in_bb): Likewise.
        (delete_variable_part): Pass VAR_INIT_STATUS_UNKNOWN to
        unshare_variable.
        (emit_note_insn_var_location): Don't set initialized to
        VAR_INIT_STATUS_INITIALIZED early.
        (vt_finalize): Free vui_vec if needed, clear vui_vec and
        vui_allocated.
        * rtl.c (rtx_equal_p): Don't implement on top of rtx_equal_p_cb.

        * tree-object-size.c (addr_object_size): Instead of checking
        for non-NULL TREE_CHAIN of the FIELD_DECL check that there
        are no FIELD_DECLs following it.

2009-06-23  Andreas Krebbel  <krebbel1@de.ibm.com>

        * tree-ssa-math-opts.c (find_bswap): Increase the search depth in
        order to match bswaps with signed source operands.

2009-06-23  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * sdbout.c (sdbout_one_type): Fix braces in switch.

2009-06-23  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (struct variable_info): Add is_global_var
        member.
        (var_anything, anything_tree, var_nothing, nothing_tree, var_readonly,
        readonly_tree, var_escaped, escaped_tree, var_nonlocal, nonlocal_tree,
        var_callused, callused_tree, var_storedanything, storedanything_tree,
        var_integer, integer_tree): Remove global variables.
        (new_var_info): Do not pass new id, append the new var to the
        global variable vector.
        (do_ds_constraint): Use is_global_var member of the variable-info.
        (new_scalar_tmp_constraint_exp): Adjust.
        (create_function_info_for): Likewise.
        (create_variable_info_for): Likewise.
        (find_what_var_points_to): Remove dead code.
        (init_base_vars): Simplify.
        (compute_points_to_sets): Adjust.

2009-06-22  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (try_combine): Dump information about the insns we're
        combining.

2009-06-22  Adam Nemet  <anemet@caviumnetworks.com>

        * combine.c (combine_simplify_rtx): Remove TRULY_NOOP_TRUNCATION
        check when calling force_to_mode on TRUNCATE's operand.

2009-06-22  Ian Lance Taylor  <iant@google.com>

        * config/rs6000/rs6000.opt: Move msched-epilog before msched-prolog.

2009-06-22  Steven Bosscher  <steven@gcc.gnu.org>

        * config/arm/arm.md (prologue_use): Set length of fake insn to 0.

2009-06-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/invoke.texi (Link Options): -nodefaultlibs and -nostdlib
        override library linkage flags such as -static-libgcc or
        -shared-libgcc.

2009-06-22  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/m68k/m68k-devices.def: Add line for MCF5221x.

2009-06-22  Ian Lance Taylor  <iant@google.com>

        * config/linux.opt: Put mglibc ahead of muclibc.

        * c-decl.c (diagnose_mismatched_decls): Add -Wc++-compat warning
        for duplicate decls.

2009-06-22  Matthias Klose  <doko@ubuntu.com>

        * Makefile.in (install-plugin): Remove extra `/' after $(DESTDIR).

2009-06-22  Steven Bosscher  <steven@gcc.gnu.org>

        PR objc/28050
        * c-parser.c (c_parser_objc_message_args): Return error_mark_node
        instead of NULL if a parser error occurs.

2009-06-22  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

        * dwarf2out.c (dwarf2_debug_hooks): Initialize
        non-DWARF2_DEBUGGING_INFO version.

2009-06-22  Kai Tietz  <kai.tietz@onevision.com>

        * config.gcc (i[34567]86-*-mingw*, x86_64-*-mingw*): Add
        i386/t-fprules-softfp and soft-fp/t-softfp to tmake_file.

        * config/i386/mingw32.h (LIBGCC2_HAS_TF_MODE): Define.
        (LIBGCC2_TF_CEXT): Define.
        (TF_SIZE): Define.

2009-06-22  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/40463
        * config/arm/linux-eabi.h (CLEAR_INSN_CACHE): Fix definition.

2009-06-22  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/arm/arm.c (arm_override_options): Disable
        -mcaller-super-interworking and -mcallee-super-interworking.
        * doc/invoke.texi (ARM Options): Document this.

2009-06-22  Nathan Sidwell  <nathan@codesourcery.com>

        * config/arm/arm.c (arm_print_operand): Deal with HIGH.
        * config/arm/constraints.md (j): New constraint for movw operands.
        (N): Remove thumb2 meaning.
        * config/arm/arm.md (*arm_movw): Delete.
        (*arm_movsi_insn): Use j constraint for movw instead of N constraint.
        * config/arm/vfp.md (*arm_movsi_vfp, *thumb2_movsi_vfp): Likewise.
        * config/arm/thumb2.md (*thumb2_movsi_insn): Likewise.

2009-06-22  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40492
        * tree-sra.c (sra_modify_assign): Pass zero offsets to
        build_ref_for_offset.

2009-06-22  Shujing Zhao  <pearly.zhao@oracle.com>

        * alias.c: Use REG_P, MEM_P, CONST_INT_P, LABEL_P, CALL_P, NOTE_P and
        JUMP_TABLE_DATA_P predicates where applicable.
        * auto-inc-dec.c: Ditto.
        * builtins.c: Ditto.
        * caller-save.c: Ditto.
        * calls.c: Ditto.
        * cfgcleanup.c: Ditto.
        * cfglayout.c: Ditto.
        * cfgrtl.c: Ditto.
        * combine.c: Ditto.
        * combine-stack-adj.c: Ditto.
        * cse.c: Ditto.
        * cselib.c: Ditto.
        * dbxout.c: Ditto.
        * df-scan.c: Ditto.
        * dse.c: Ditto.
        * dwarf2asm.c: Ditto.
        * dwarf2out.c: Ditto.
        * emit-rtl.c: Ditto.
        * except.c: Ditto.
        * explow.c: Ditto.
        * expmed.c: Ditto.
        * expr.c: Ditto.
        * final.c: Ditto.
        * function.c: Ditto.
        * fwprop.c: Ditto.
        * gcse.c: Ditto.
        * genpreds.c: Ditto.
        * genrecog.c: Ditto.
        * ifcvt.c: Ditto.
        * ira-costs.c: Ditto.
        * ira-lives.c: Ditto.
        * jump.c: Ditto.
        * loop-iv.c: Ditto.
        * lower-subreg.c: Ditto.
        * modulo-sched.c: Ditto.
        * optabs.c: Ditto.
        * postreload.c: Ditto.
        * print-rtl.c: Ditto.
        * recog.c: Ditto.
        * reginfo.c: Ditto.
        * regmove.c: Ditto.
        * reload1.c: Ditto.
        * reload.c: Ditto.
        * reorg.c: Ditto.
        * rtlanal.c: Ditto.
        * rtl.c: Ditto.
        * sched-vis.c: Ditto.
        * sdbout.c: Ditto.
        * sel-sched-ir.c: Ditto.
        * simplify-rtx.c: Ditto.
        * targhooks.c: Ditto.
        * var-tracking.c: Ditto.
        * vmsdbgout.c: Ditto.

2009-06-22  Matthias Klose  <doko@ubuntu.com>

        * Makefile.in (install-plugin): Always use DESTDIR.

2009-06-22  Olivier Hainque  <hainque@adacore.com>
        
        * config/pa/pa.c (output_call): Don't optimize post call jumps
        into return address adjustments if the call may throw.

2009-06-21  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (thumb1_output_casesi): New function.
        * arm.h (CASE_VECTOR_PC_RELATIVE): Thumb-1 code is also relative if
        optimizing for size or PIC.
        (CASE_VECTOR_SHORTEN_MODE): Handle thumb-1.
        * arm.md (UNSPEC_THUMB1_CASESI): New constant.
        (casesi): Handle Thumb-1 when optimizing for size or PIC.
        (thumb1_casesi_internal_pic): New expand rule.
        (thumb1_casesi_dispatch): New pattern.
        * aout.h (ASM_OUTPUT_ADDR_DIFF_ELT): Use shortened vectors for
        thumb-1 mode.
        * coff.h (JUMP_TABLES_IN_TEXT_SECTION): Thumb-1 jump tables are now
        in the text seciton when PIC or optimizing for size.
        * elf.h (JUMP_TABLES_IN_TEXT_SECTION): Likewise.
        * lib1funcs.asm ([__ARM_EABI__]): Add an attribute describing stack
        preservation properties of code.
        (__gnu_thumb1_case_sqi, __gnu_thumb1_case_uqi): New functions.
        (__gnu_thumb1_case_shi, __gnu_thumb1_case_uhi): New functions.
        (__gnu_thumb1_case_si): New function.
        * t-arm (LIB1ASMSRC): Define here.
        (LIB1ASMFUNCS): Add some common functions.
        * t-arm-elf (LIB1ASMSRC): Delete.
        (LIB1ASMFUNCS): Append to existing set.
        * t-pe (LIB1ASMSRC, LIB1ASMFUNCS): Likewise.
        * t-strongarm-elf (LIB1ASMSRC, LIB1ASMFUNCS): Likewise.
        * t-symbian (LIB1ASMFUNCS): Likewise.
        * t-vxworks (LIB1ASMSRC, LIB1ASMFUNCS): Likewise.
        * t-wince-pe (LIB1ASMSRC, LIB1ASMFUNCS): Likewise.

2009-06-21  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38729
        * tree-ssa-loop-niter.c (find_loop_niter_by_eval): Restrict
        to loops with a single exit if -fno-expensive-optimizations.

2009-06-21  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (struct shared_hash_def, shared_hash): New types.
        (dataflow_set): Change vars type from htab_t to shared_hash.
        (shared_hash_pool, empty_shared_hash): New variables.
        (vars_clear): Removed.
        (shared_hash_shared, shared_hash_htab, shared_hash_copy,
        shared_hash_find_slot_unshare, shared_hash_find_slot,
        shared_hash_find_slot_noinsert, shared_hash_find): New
        static inlines.
        (shared_hash_unshare, shared_hash_destroy): New functions.
        (unshare_variable): Unshare set->vars if shared, use
        shared_hash_htab.
        (vars_copy): Use htab_traverse_noresize instead of htab_traverse.
        (get_init_value, find_src_set_src, dump_dataflow_set,
        clobber_variable_part, emit_notes_for_differences): Use
        shared_hash_htab.
        (dataflow_set_init): Remove second argument, set vars to
        empty_shared_hash instead of creating a new htab.
        (dataflow_set_clear): Call shared_hash_destroy and set vars
        to empty_shared_hash instead of calling vars_clear.
        (dataflow_set_copy): Don't call vars_copy, instead just share
        the src htab with dst.
        (variable_union): Use shared_hash_*, use initially NO_INSERT
        lookup if set->vars is shared.  Don't keep slot cleared before
        calling unshare_variable.  Unshare set->vars if needed.
        Even ->refcount == 1 vars must be unshared if set->vars is shared
        and var needs to be modified.
        (variable_canonicalize): New function.
        (dataflow_set_union): If dst->vars is empty, just share src->vars
        with dst->vars and traverse with variable_canonicalize to canonicalize
        and unshare what is needed.
        (dataflow_set_different): If old_set and new_set use the same shared
        htab, they aren't different.  If number of htab elements is different,
        htabs are different.  Use shared_hash_*.
        (dataflow_set_destroy): Call shared_hash_destroy instead of
        htab_delete.
        (compute_bb_dataflow, emit_notes_in_bb, vt_emit_notes): Don't pass
        second argument to dataflow_set_init.
        (vt_initialize): Likewise.  Initialize shared_hash_pool and
        empty_shared_hash, move bb in/out initialization afterwards.
        Use variable_htab_free instead of NULL as changed_variables del hook.
        (variable_was_changed): Change type of second argument to pointer to
        dataflow_set.  When inserting var into changed_variables, bump
        refcount.  Unshare set->vars if set is shared htab and slot needs to
        be cleared.
        (set_variable_part): Use shared_hash_*, use initially NO_INSERT
        lookup if set->vars is shared.  Unshare set->vars if needed.
        Even ->refcount == 1 vars must be unshared if set->vars is shared
        and var needs to be modified.  Adjust variable_was_changed caller.
        (delete_variable_part): Use shared_hash_*.  Even ->refcount == 1
        vars must be unshared if set->vars is shared and var needs to be
        modified.  Adjust variable_was_changed caller.
        (emit_note_insn_var_location): Don't pool_free var.
        (emit_notes_for_differences_1): Initialize empty_var->refcount to 0
        instead of 1.
        (vt_finalize): Call htab_delete on empty_shared_hash->htab and
        free_alloc_pool on shared_hash_pool.

2009-06-20  Anthony Green  <green@moxielogic.com>

        * config/moxie/sfp-machine.h (__gcc_CMPtype, CMPtype): Define.
        * config/moxie/moxie.h (LOAD_EXTEND_OP): Define.

2009-06-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (find_func_aliases): For memset use
        a constraint from NULL if we memset to zero.
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Add builtins
        we explicitly handle that do not read from memory.
        (call_may_clobber_ref_p_1): Properly handle builtins that may
        set errno.

2009-06-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40495
        * tree-ssa-structalias.c (get_constraint_exp_for_temp): Remove.
        (new_scalar_tmp_constraint_exp): New function.
        (process_constraint): Do not create temporary decls.
        (process_all_all_constraints): Likewise.
        (handle_const_call): Likewise.
        (create_function_info_for): Do not set decl.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * config/rs6000/rs6000.c (rs6000_explicit_options): Make static.
        (rs6000_attribute_table): Make static; move before use.

2009-06-19  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.c (substitute_in_expr) <COMPONENT_REF>: Tweak and reformat.
        <tcc_vl_exp>: Call process_call_operands on the new CALL_EXPR.
        Propagate the TREE_READONLY flag without overwriting it.
        (substitute_placeholder_in_expr) <tcc_vl_exp>: Likewise.
        Propagate the TREE_READONLY flag onto the result.
        (process_call_operands): Move around.  Use correct constant value.

2009-06-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/40482
        * config/arm/arm.c (thumb_shiftable_const): Truncate val to 32 bits.
        * config/arm/arm.md: Likewise.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * tree-cfg.c (gimple_redirect_edge_and_branch): Change ERROR_MARK
        to GIMPLE_ERROR_MARK.

        * c-typeck.c (build_conditional_expr): Add op1_original_type and
        op2_original_type parameters.  Warn about using different enum types.
        * c-parser.c (c_parser_conditional_expression): Pass original
        types to build_conditional_expr.
        * c-tree.h (build_conditional_expr): Update declaration.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * config/i386/i386.c (ix86_function_specific_save): Test that
        fields match values, rather than testing the values are in a
        certain range.

2009-06-19  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Handle
        ADDR_EXPR pointers.
        (ptr_derefs_may_alias_p): Likewise.
        (ptr_deref_may_alias_ref_p_1): New function.
        (ptr_deref_may_alias_ref_p): Likewise.
        (ref_maybe_used_by_call_p_1): Handle builtins that are not
        covered by looking at the ESCAPED solution.
        (call_may_clobber_ref_p_1): Likewise.
        * tree-ssa-structalias.c (get_constraint_for_ptr_offset):
        Handle NULL_TREE offset.  Do not produce redundant constraints.
        (process_all_all_constraints): New helper function.
        (do_structure_copy): Use it.
        (handle_lhs_call): Likewise.
        (find_func_aliases): Handle some builtins with pointer arguments
        and/or return values explicitly.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * varasm.c (const_rtx_hash_1): Remove const qualifier from shift.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * rtl.h (SUBREG_PROMOTED_UNSIGNED_P): Add cast to int.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * ggc-page.c (ggc_pch_write_object): Initialize emptyBytes.
        * sdbout.c (sdb_debug_hooks): Initialize non-SDB_DEBUGGING_INFO
        version.

        * c-decl.c (finish_decl): If -Wc++-compat, warn about
        uninitialized const.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * dse.c (struct store_info): Rename bitmap field to bmap.  Change
        all uses.

        * c-decl.c (in_struct, struct_types): Remove.
        (struct c_binding): Add in_struct field.
        (c_binding_ptr): Define type, along with VEC.
        (struct c_struct_parse_info): Define.
        (struct_parse_info): New static variable.
        (bind): Initialize in_struct field.
        (start_struct): Remove enclosing_in_struct and
        enclosing_struct_types parameters.  Add
        enclosing_struct_parse_info parameter.  Change all callers.  Set
        struct_parse_info rather than in_struct and struct_types.
        (grokfield): If -Wc++-compat and there is a symbol binding for the
        field name, set the in_struct flag and push it on the
        struct_parse_info->fields vector.
        (warn_cxx_compat_finish_struct): New static function.
        (finish_struct): Remove enclosing_in_struct and
        enclosing_struct_types parameters.  Add
        enclosing_struct_parse_info parameter.  Change all callers.  Don't
        set C_TYPE_DEFINED_IN_STRUCT here.  Call
        warn_cxx_compat_finish_struct.  Free struct_parse_info and set to
        parameter.  Only push on struct_types if warn_cxx_compat.
        (finish_enum): Only push on struct_types if warn_cxx_compat.
        (declspecs_add_type): Add loc parameter.  Change all callers.
        Change all error calls to error_at.  Pass loc, not input_location,
        to pedwarn calls.  Warn if -Wc++-compat and a typedef name is
        defined in a struct.  If -Wc++-compat and parsing a struct, record
        that a typedef name was used.
        * c-parser.c (c_parser_declspecs): Get location to pass to
        declspecs_add_type.
        (c_parser_struct_or_union_specifier): Update calls to start_struct
        and finish_struct.
        * c-tree.h (struct c_struct_parse_info): Declare.
        (finish_struct, start_struct): Update declarations.
        (declspecs_add_type): Update declaration.

2009-06-19  Ian Lance Taylor  <iant@google.com>

        * c-decl.c (grokdeclarator): If -Wc++-compat, warn about a global
        variable with an anonymous type.

2009-06-19  Uros Bizjak  <ubizjak@gmail.com>

        * see.c: Remove for real.

2009-06-19  Uros Bizjak  <ubizjak@gmail.com>

        * optabs.h (enum optab_index): Add new OTI_significand.
        (significand_optab): Define corresponding macro.
        * optabs.c (init_optabs): Initialize significand_optab.
        * genopinit.c (optabs): Implement significand_optab using
        significand?f2 patterns.
        * builtins.c (expand_builtin_mathfn): Handle
        BUILT_IN_SIGNIFICAND{,F,L}.
        (expand_builtin): Expand BUILT_IN_SIGNIFICAND{,F,L} using
        expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

        * config/i386/i386.md (significandxf2, significand<mode>2): New
        expanders to implement significandf, significand and significandl
        built-ins as inline x87 intrinsics.

2009-06-18  Anatoly Sokolov  <aesok@post.ru>

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

2009-06-18  Richard Henderson  <rth@redhat.com>

        PR 40488
        * tree-pass.h (TDF_ASMNAME): New.
        * tree-dump.c (dump_options): Add asmname.
        * doc/invoke.texi: Document it.

        * tree-pretty-print.c (maybe_dump_asm_name): Merge into...
        (dump_decl_name): ...here.
        (dump_function_name): New flags arg; mind TDF_ASMNAME.
        (dump_generic_node): Update dump_function_name calls.
        (print_call_name): New flags arg; update all dump calls.
        * diagnostic.h (print_call_name): Update.
        * gimple-pretty-print.c (dump_gimple_call): Update.

2009-06-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/40470
        * config/i386/i386.h (CLASS_LIKELY_SPILLED_P): Add SSE_FIRST_REG.

2009-06-18  Diego Novillo  <dnovillo@google.com>

        * doc/plugins.texi: Document plugin_is_GPL_compatible.
        * plugin.c (str_license): Declare.
        (try_init_one_plugin): Assert that the symbol
        'plugin_is_GPL_compatible' exists.

2009-06-18  Sergei Dyshel  <sergeid@il.ibm.com>

        * see.c: Remove.
        * Makefile.in (OBJS-common): Remove see.o.
        (see.o): Remove.
        * common.opt (fsee): Mark as preserved for backward compatibility.
        * opts.c (common_handle_option): Add OPT_fsee to the backward 
        compatibility section.
        * passes.c (init_optimization_passes, pass_see): Remove pass.
        * timevar.def (TV_SEE): Remove.
        * tree-pass.h (pass_see): Remove declaration.
        * doc/invoke.texi (-fsee): Remove documentation.
        
2009-06-18  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c: Include statistics.h
        (sra_stats): New variable.
        (sra_initialize): Clear sra_stats.
        (create_access_replacement): Increment sra_stats.replacements.
        (get_access_replacement): Do not return twice.
        (analyze_all_variable_accesses): Increment statistics counter by the
        number of scalarized aggregates.
        (generate_subtree_copies): Increment sra_stats.subtree_copies.
        (sra_modify_expr): Increment sra_stats.exprs.
        (load_assign_lhs_subreplacements): Increment sra_stats.subreplacements.
        (sra_modify_assign): Increment sra_stats.exprs,
        sra_stats.separate_lhs_rhs_handling and sra_stats.deleted.
        (perform_intra_sra): Update statistics counters.
        * Makefile.in (tree-sra.o): Add statistics.h to dependencies.

2009-06-18  Sandra Loosemore  <sandra@codesourcery.com>

        * config/arm/arm.c (TARGET_SCALAR_MODE_SUPPORTED_P): Redefine.
        (arm_scalar_mode_supported_p): New function.

2009-06-18  Paul Brook  <paul@codesourcery.com>
            Sandra Loosemore  <sandra@codesourcery.com>

        * config/arm/sfp-machine.h (_FP_NANFRAC_H, _FP_NANSIGN_H): Define.
        (__extendhfsf2, __truncsfhf2): Define.
        * config/arm/fp16.c: New file.
        * config/arm/t-bpabi (LIB2FUNCS_STATIC_EXTRA): Add fp16.c.
        * config/arm/t-symbian (LIB2FUNCS_STATIC_EXTRA):  Add fp16.c.

2009-06-18  Sandra Loosemore  <sandra@codesourcery.com>

        * doc/extend.texi (Half-Precision): New section.
        * doc/invoke.texi (Option Summary): List -mfp16-format.
        (ARM Options): List neon-fp16 as -mfpu value.  Document -mfp16-format.
        * config/arm/arm.opt (mfp16-format=): New.
        * config/arm/arm.c: Include intl.h.
        (TARGET_INVALID_PARAMETER_TYPE): Redefine.
        (TARGET_INVALID_RETURN_TYPE): Redefine.
        (TARGET_PROMOTED_TYPE): Redefine.
        (TARGET_CONVERT_TO_TYPE): Redefine.
        (arm_fp16_format): Define.
        (all_fpus): Add entry for neon-fp16.
        (fp_model_for_fpu): Likewise.
        (struct fp16_format): Declare.
        (all_fp16_formats): Define.
        (arm_init_libfuncs): Add entries for HFmode conversions and arithmetic
        functions.
        (arm_override_options): Set arm_fp16_format. Call sorry for fp16
        and no ldrh.
        (arm_legitimate_index_p): Treat HFmode like HImode.
        (thumb1_legitimate_address_p): Make it recognize HFmode constants.
        (coproc_secondary_reload_class): Special-case HFmode.
        (arm_print_operand): Add 'z' specifier for vld1.16/vst1.16.
        (arm_hard_regno_mode_ok): Allow HFmode values in VFP registers.
        (arm_init_fp16_builtins): New.
        (arm_init_builtins): Call it.
        (arm_invalid_parameter_type): New.
        (arm_invalid_return_type): New.
        (arm_promoted_type): New.
        (arm_convert_to_type).
        (arm_file_start): Deal with neon-fp16 as fpu_name.  Emit tag for fp16
        format.
        (arm_emit_fp16_const): New function.
        (arm_mangle_type): Mangle __fp16 as "Dh".
        * config/arm/arm.h (TARGET_VFPD32): Make it know about
        FPUTYPE_NEON_FP16.
        (TARGET_NEON_FP16): New.
        (TARGET_NEON): Make it know about FPUTYPE_NEON_FP16.
        (enum fputype): Add FPUTYPE_NEON_FP16.
        (enum arm_fp16_format_type): Declare.
        (arm_fp16_format): Declare.
        (LARGEST_EXPONENT_IS_NORMAL): Define.
        * config/arm/arm-protos.h (arm_emit_fp16_const): Declare.
        * config/arm/arm-modes.def (HFmode): Define.
        * config/arm/vfp.md: (*movhf_vfp): New.
        (extendhfsf2): New.
        (truncsfhf2): New.
        * config/arm/arm.md: (fpu): Add neon_fp16.
        (floatsihf2, floatdihf2): New.
        (fix_trunchfsi2, fix_trunchfdi2): New.
        (truncdfhf2): New.
        (extendhfdf2): New.
        (movhf): New.
        (*arm32_movhf): New.
        (*thumb1_movhf): New.
        (consttable_2): Add check for HFmode constants.
        (consttable_4): Handle HFmode constants.

2009-06-18  Uros Bizjak  <ubizjak@gmail.com>

        * convert.c (convert_to_integer): Convert (int)logb() into ilogb().

2009-06-17  Olivier Hainque  <hainque@adacore.com>

        * collect2.c (main): Use CONST_CAST2 to perform char ** to
        const char ** conversion in AIX specific section.
        
2009-06-17  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_special_builtin_type): Remove
        UINT64_FTYPE_PINT.  Add UINT64_FTYPE_PUNSIGNED.
        (bdesc_special_args): Updated.
        (ix86_init_mmx_sse_builtins): Likewise.
        (ix86_expand_special_args_builtin): Likewise.

2009-06-17  Richard Henderson  <rth@redhat.com>

        * tree-pretty-print.c (maybe_dump_asm_name): New.
        (dump_decl_name): Use it.
        (PRINT_FUNCTION_NAME): Merge into...
        (dump_function_name): ... here.  Use maybe_dump_asm_name.

2009-06-17  Cary Coutant  <ccoutant@google.com>

        * dbxout.c (dbxout_source_line): Add is_stmt parameter.
        Change caller.
        * debug.c (struct gcc_debug_hooks): Change placeholder for
        source_line hook.
        (debug_nothing_int_charstar_int): Replaced by...
        (debug_nothing_int_charstar_int_bool): ...this.
        * debug.h (struct gcc_debug_hooks): Add is_stmt parameter to
        source_line prototype.
        (debug_nothing_int_charstar_int): Replaced by...
        (debug_nothing_int_charstar_int_bool): ...this.
        * defaults.h (SUPPORTS_DISCRIMINATOR): New constant.
        * dwarf2out.c (dwarf2out_source_line): Add is_stmt parameter.
        Output is_stmt operand when necessary.
        * final.c (final_scan_insn): Pass is_stmt to source_line debug hook.
        (notice_source_line): Add is_stmt parameter.
        * sdbout.c (sdbout_source_line): Add is_stmt parameter.
        * vmsdbgout.c (vmsdbgout_source_line): Add is_stmt parameter.
        Change callers.
        * xcoffout.c (xcoffout_source_line): Add is_stmt parameter.
        * xcoffout.h (xcoffout_source_line): Add is_stmt parameter.

2009-06-17  Ian Lance Taylor  <iant@google.com>

        * expr.c (struct move_by_pieces_d): Rename from move_by_pieces.
        Change all uses.
        (struct store_by_pieces_d): Rename from store_by_pieces.  Change
        call uses.

2009-06-17  Adam Nemet  <anemet@caviumnetworks.com>

        * tree.h (STRIP_NOPS, STRIP_SIGN_NOPS,
        STRIP_USELESS_TYPE_CONVERSION): Use tree_strip_nop_conversions,
        tree_strip_sign_nop_conversions and
        tree_ssa_strip_useless_type_conversions rather than stripping
        the operations here.
        (tree_strip_nop_conversions, tree_strip_sign_nop_conversions):
        Declare them.
        * gimple.h (tree_ssa_strip_useless_type_conversions): Declare it.
        * tree-ssa.c (tree_ssa_strip_useless_type_conversions): New function.
        * tree.c (tree_nop_conversion, tree_sign_nop_conversion,
        tree_strip_nop_conversions, tree_strip_sign_nop_conversions): New
        functions.

2009-06-17  Michael Eager  <eager@eagercon.com>

        * config/rs6000/constraints.md (register_constraint "d"): New.
        * config/rs6000/dfp.md (movsd_store, extendsddd2, extendsdtd2,
        truncddsd2, *negdd2_fpr, *absdd2_fpr, *nabsdd2_fpr,
        *movdd_hardfloat32, *movdd_hardfloat64_mfpgpr, *movdd_hardfloat64,
        *negtd2_fp, *abstd2_fpr, *nabstd2_fpr, *movtd_internal, extendddtd2,
        trunctddd2, adddd3, addtd3, subdd3, subtd3, muldd3, multd3, divdd3,
        divtd3, *cmpdd_internal1, *cmptd_internal1, floatditd2, ftruncdd2,
        fixdddi2, ftrunctd2, fixtddi2): replace 'f' constraint with 'd'
        * config/rs6000/ppu_intrinsics.h (__mffs, __mtfsf, __mtfsfi, __fabs,
        __fnabs, __fmadd, __fmsub, __fnmadd, __fnmsub, __fsel, __frsqrte,
        __fsqrt, __fmul, __fmuls, __frsp, __fcfid, __fctid, __fctidz, __fctiw,
        __fctiwz): Same.
        * config/rs6000/rs6000.md (*extendsfdf2_fpr, *truncdfsf2_fpr,
        *fseldfsf4, *negdf2_fpr, *absdf2_fpr, *nabsdf2_fpr, *adddf3_fpr,
        *subdf3_fpr, *muldf3_fpr, *divdf3_fpr, recipdf3, fred, sqrtdf2,
        *fseldfdf4, *fselsfdf4, *floatsidf2_internal, *floatunssidf2_internal,
        *fix_truncdfsi2_internal, fix_truncdfsi2_internal_gfxopt,
        fix_truncdfsi2_mfpgpr, fctiwz, btruncdf2, ceildf2, floordf2, rounddf2,
        stfiwx, floatdidf2, fix_truncdfdi2, floatdisf2_internal1,
        *movdf_hardfloat32, *movdf_hardfloat64_mfpgpr, *movdf_hardfloat64,
        *movtf_internal, *extenddftf2_internal, trunctfdf2_internal1,
        trunctfdf2_internal2, trunctfsf2_fprs, fix_trunc_helper,
        *fix_trunctfsi2_internal, negtf2_internal, *movdi_internal32,
        *movdi_mfpgpr, *movdi_internal64, *movdf_update1, *movdf_update2,
        *cmpdf_internal1, *cmptf_internal1, *cmptf_internal2): Same.
        * doc/md.texi: Describe PowerPC 'd' constraint, update 'f' constraint.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * profile.c (total_num_never_executed): Don't define.
        (compute_branch_probabilities): Don't count or print
        num_never_executed.
        (init_branch_prob): Don't set total_num_never_executed.
        (end_branch_prob): Don't print total_num_never_executed.

2009-06-17  David Daney  <ddaney@caviumnetworks.com>

        * jump.c (cleanup_barriers): Handle case of no insns before a barrier.

2009-06-17  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/dfp.md (nabsdd2_fpr): Correct mode.
        (nabstd2_fpr): Same.

2009-06-17  Steve Ellcey  <sje@cup.hp.com>

        * expr.c (expand_assignment): Change complex type check.

2009-06-17  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/plugins.texi (Building GCC plugins): Added new section. 

2009-06-17  Ian Lance Taylor  <iant@google.com>

        * c-pch.c (get_ident): Don't set size of templ array.
        (pch_init): Don't set size of partial_pch array.

        * c-typeck.c (digest_init): If -Wc++-compat, warn about using a
        string constant to intialize an array whose size is the length of
        the string.

2009-06-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40389
        * tree-ssa-structalias.c (handle_rhs_call): Restrict NRV case
        to addressable types.
        * gimple.c (walk_stmt_load_store_addr_ops): Likewise.

2009-06-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/40460
        * tree-chrec.h (build_polynomial_chrec): If we cannot determine
        if there is no evolution of left in the loop bail out.
        * tree-chrec.c (chrec_fold_multiply_poly_poly): CSE one
        chrec_fold_multiply.

2009-06-16  J"orn Rennecke  <joern.rennecke@arc.com>
            Janis Johnson  <janis187@us.ibm.com>

        PR target/39254
        * config/rs6000/rs6000.c (rs6000_emit_move): Don't emit a USE
        for the symbol ref of a constant that is the source of a move
        - nor for any other not-obvious-label-ref constants.

2009-06-16  Olatunji Ruwase  <tjruwase@google.com>

        * plugin.c (position_pass): Skip newly inserted pass during list
        traversal to avoid repeated insertion.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * vec.h (VEC_stack_alloc): Define different version if
        GATHER_STATISTICS is defined, to accept and ignore MEM_STAT.
        (DEF_VEC_ALLOC_FUNC_P_STACK): Remove MEM_STAT_DECL.
        (DEF_VEC_ALLOC_FUNC_O_STACK): Likewise.
        (DEF_VEC_ALLOC_FUNC_I_STACK): Likewise.

2009-06-16  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc (extra_headers): Add ia32intrin.h for x86.

        * config/i386/i386.c (ix86_builtins): Add IX86_BUILTIN_BSRSI,
        IX86_BUILTIN_BSRDI.  IX86_BUILTIN_RDPMC, IX86_BUILTIN_RDTSC.
        IX86_BUILTIN_RDTSCP.  IX86_BUILTIN_ROLQI, IX86_BUILTIN_ROLHI,
        IX86_BUILTIN_RORQI and IX86_BUILTIN_RORHI.
        (ix86_special_builtin_type): Add UINT64_FTYPE_VOID,
        UINT64_FTYPE_PINT, INT_FTYPE_INT, UINT64_FTYPE_INT,
        INT64_FTYPE_INT64, UINT16_FTYPE_UINT16_INT and UINT8_FTYPE_UINT8_INT.
        (bdesc_special_args): Add __builtin_ia32_rdtsc and
        __builtin_ia32_rdtscp.
        (bdesc_args): Add __builtin_ia32_bsrsi, __builtin_ia32_bsrdi,
        __builtin_ia32_rolqi, __builtin_ia32_rolhi, __builtin_ia32_rorqi
        and __builtin_ia32_rorhi.
        (ix86_init_mmx_sse_builtins): Handle UINT64_FTYPE_VOID,
        UINT64_FTYPE_PINT, INT_FTYPE_INT, UINT64_FTYPE_INT,
        INT64_FTYPE_INT64, UINT16_FTYPE_UINT16_INT and UINT8_FTYPE_UINT8_INT.
        (ix86_expand_args_builtin): Likewise.
        (ix86_expand_special_args_builtin): Likewise.

        * config/i386/i386.md (UNSPECV_RDTSCP): New.
        (UNSPECV_RDTSC): Likewise.
        (UNSPECV_RDPMC): Likewise.
        (*bsr): Renamed to ...
        (bsr): This
        (*bsr_rex64): Renamed to ...
        (bsr_rex64): This.
        (rdpmc): New.
        (*rdpmc): Likewise.
        (*rdpmc_rex64): Likewise.
        (rdtsc): Likewise.
        (*rdtsc): Likewise.
        (*rdtsc_rex64): Likewise.
        (rdtscp): Likewise.
        (*rdtscp): Likewise.
        (*rdtscp_rex64): Likewise.

        * config/i386/ia32intrin.h: New.

        * config/i386/x86intrin.h: Include <ia32intrin.h>.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * ira-build.c (copy_info_to_removed_store_destinations):
        Initialize parent_a.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * c-decl.c (grokdeclarator): Change size_varies to bool.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * sel-sched.c: Make forward declarations of move_op_hooks and
        fur_hooks explicitly extern.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * df-problems.c (df_byte_lr_alloc): Don't set problem_data to itself.
        * vec.c (vec_gc_o_reserve_1): Don't set alloc to itself.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * resource.c (mark_referenced_resources): Change
        include_delayed_effects parameter to bool.  Change all callers.
        (mark_end_of_function_resources): Likewise.
        * reorg.c (insn_references_resource_p): Likewise.
        (insn_sets_resource_p): Likewise.
        * resource.h (mark_referenced_resources): Update declaration.
        (mark_end_of_function_resources): Update declaration.

2009-06-16  David Edelsohn  <edelsohn@gnu.org>

        * config/rs6000/aix.h (LIBSTDCXX_STATIC): Remove -lstdc++.

2009-06-16  David Edelsohn  <edelsohn@gnu.org>

        * doc/install.texi (*-*-aix): Update explanation of XLC bootstrap.
        GCC can bootstrap on AIX with GNU Binutils 2.20.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * Makefile.in (tree-vect-stmts.o): Depend upon $(TOPLEV_H).

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * toplev.h (floor_log2): If GCC_VERSION >= 3004, declare as static
        inline, not extern inline.
        (exact_log2): Likewise.
        * toplev.c (floor_log2): Only define if GCC_VERSION < 3004. Don't
        test CLZ_HWI.
        (exact_log2): Likewise, but don't test CTZ_HWI.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * bitmap.c (bitmap_clear): Don't declare as inline.
        * gimple.c (gimplify_assign): Likewise.
        * tree-ssa-sccvn.c (vn_nary_op_compute_hash): Likewise.
        * haifa-sched.c (insn_cost): Don't declare with HAIFA_INLINE.
        (sched_scan_info): Remove duplicate definition.

2009-06-16  Ian Lance Taylor  <iant@google.com>

        * c-common.c (skip_evaluation): Don't define.
        (c_inhibit_evaluation_warnings): Define global variable.
        (overflow_warning): Check c_inhibit_evaluation_warnings rather
        than skip_evaluation.
        (convert_and_check, warn_for_div_by_zero): Likewise.
        * c-common.h (skip_evaluation): Don't declare.
        (c_inhibit_evaluation_warnings): Declare.
        * c-parser.c (c_parser_typeof_specifier): Set
        c_inhibit_evaluation_warnings rather than skip_evaluation.
        (c_parser_conditional_expression): Likewise.
        (c_parser_binary_expression): Likewise.
        (c_parser_sizeof_expression): Likewise.
        (c_parser_alignof_expression): Likewise.
        * c-typeck.c (build_indirect_ref): Check
        c_inhibit_evaluation_warnings rather than skip_evaluation.
        (build_conditional_expr, build_binary_op): Likewise.

2009-06-16  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (is_escape_site): Remove.
        * tree-ssa-alias.h (enum escape_type): Remove.
        (is_escape_site): Likewise.
        * tree-ssa-structalias.c (find_func_aliases): Handle escapes
        via casts and asms without deferring to is_escape_site.

2009-06-16  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/40446
        * expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: Don't
        use gen_lowpart if op0 has complex mode.

2009-06-16  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (do_ds_constraint): Stores in global
        variables add them to ESCAPED.
        (find_func_aliases): Do not make all indirectly stored values escaped.

2009-06-16  Rafael Avila de Espindola  <espindola@google.com>

        * config/i386/winnt.c (i386_pe_encode_section_info): Update call to
        make_decl_one_only.

2009-06-16  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40432
        * tree-sra.c (sra_modify_assign): When creating VIEW_CONVERT_EXPR,
        check whether we need to force gimple register operand.

2009-06-16  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/40413
        * tree-sra.c (load_assign_lhs_subreplacements): Pass offset to
        build_ref_for_offset.
        (propagate_subacesses_accross_link): Fix a typo in a comment.

2009-06-16  Ira Rosen  <irar@il.ibm.com>

        * tree-parloops.c (loop_parallel_p): Call vect_is_simple_reduction
        with additional parameter.
        * tree-vectorizer.h (enum vect_def_type): Add new value
        vect_nested_cycle.
        (enum vect_relevant): Add comments.
        (vect_is_simple_reduction): Add new argument.
        * tree-vect-loop.c (vect_analyze_scalar_cycles_1): Add comments.
        Detect nested cycles.
        (vect_is_simple_reduction): Update documentation, add an argument to
        distinguish inner-loop reduction from nested cycle, detect nested
        cycles, fix printings and indentation, don't swap operands in case
        of nested cycle.
        (get_initial_def_for_reduction): Handle subtraction.
        (vect_create_epilog_for_reduction): Add new argument to specify
        reduction variable.
        (vect_finalize_reduction): Handle subtraction, fix comments.
        (vectorizable_reduction): Handle nested cycles. In case of nested
        cycle keep track of the reduction variable position. Call 
        vect_is_simple_reduction with additional parameter. Use original
        statement code in reduction epilogue for nested cycle. Call
        vect_create_epilog_for_reduction with additional parameter.
        * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Assert
        inner-loop vectorization.
        (vect_recog_widen_sum_pattern): Likewise.
        * tree-vect-stmts.c (process_use): Distinguish between nested cycles
        and reductions.
        (vect_mark_stmts_to_be_vectorized): Likewise.
        (vect_get_vec_def_for_operand): Handle nested cycles.

2009-06-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/invoke.texi (Debugging Options): Fix option index entries
        for -fdump-statistics, -frandom-seed add entries for
        -fdump-tree-original, -fdump-tree-optimized, -frandom-seed.
        (FRV Options): Fix entries for -mTLS, -mtls.
        (HPPA Options): Fix entries for -mgnu-ld, -mhp-ld.
        (i386 and x86-64 Options): Fix entry for -mno-red-zone.
        (M68hc1x Options): Fix @itemx for -mnominmax.
        (MCore Options): Fix entry for -mno-lsim.
        (MMIX Options): Fix entry for -mabi=mmixware.
        (PDP-11 Options): Fix entry for -mbcopy-builtin.

2009-06-16  Basile Starynkevitch  <basile@starynkevitch.net>

        * doc/plugins.texi (Interacting with the GCC Garbage Collector):
        Mention the plugin mode of gengtype.
        * doc/gty.texi (Source Files Containing Type Information): Likewise.
        * gengtype.c: Updated copyright.
        (plugin_files, nb_plugin_files) Added new static variables.
        (measure_input_list) Care about plugin_files.
        (write_rtx_next): Added early return in plugin mode.
        (create_file): Updated copyright year in generated file. Added
        asserts.
        (oprintf): Added early return if NULL outf.
        (get_output_file_with_visibility): Care of plugin_files.
        (get_output_file_name): May return null.
        (write_local): Added early return.
        (put_mangled_filename): Ditto.
        (finish_root_table): Added check for base_files.
        (write_roots): Care about null when plugins.
        (main): Added plugin mode.

2009-06-15  Ian Lance Taylor  <iant@google.com>

        * df-problems.c (df_simulate_one_insn_forwards): Fix braces in switch.
        * gcov.c (read_count_file): Add braces around variables declared
        before label.

        * c.opt (Wjump-misses-init): New warning.
        * c-opts.c (c_common_handle_option): Set warn_jump_misses_init for
        -Wall and -Wc++-compat if not already set.
        (c_common_post_options): Clear warn_jump_misses_init if it was not
        set.
        * c-decl.c (struct c_binding): Change type field to a union with
        new label field.  Make it the first field in the struct.  Update
        references to type to use u.type instead.
        (struct c_spot_bindings): Define.
        (struct c_goto_bindings): Define.
        (c_goto_bindings_p): Define, along with VECs.
        (struct c_label_vars): Define.
        (struct c_scope): Add has_label_bindings field.
        (bind_label, set_spot_bindings): New static functions.
        (decl_jump_unsafe, update_spot_bindings): New static functions.
        (update_label_decls): New static function.
        (pop_scope): Call update_label_decls.  Don't call c_end_vm_scope.
        Update binding u.label field to shadowed field.
        (c_binding_start_stmt_expr): New function.
        (c_binding_end_stmt_expr): New function.
        (pushdecl): Don't call c_begin_vm_scope.
        (make_label): Add defining and p_label_vars parameters.  Change
        all callers.
        (lookup_label): Correct test for whether a label has not yet been
        defined.  Call bind_label rather than bind.
        (warn_about_goto): New static function.
        (lookup_label_for_goto): New function.
        (declare_label): Call bind_label rather than bind.
        (check_earlier_gotos): New static function.
        (define_label): Don't give errors about jumping into statement
        expressions or scopes of variably modified types.  Call
        set_spot_bindings and check_earlier_gotos.  Call bind_label
        instead of bind.  Don't set label_context_stack_se or
        label_context_stack_vm.
        (c_get_switch_bindings): New function.
        (c_release_switch_bindings): New function.
        (c_check_switch_jump_warnings): New function.
        (start_function): Don't set label_context_stack_se or
        label_context_stack_vm.
        (finish_function): Likewise.
        * c-typeck.c (label_context_stack_se): Don't define.
        (label_context_stack_vm): Don't define.
        (c_finish_goto_label): Call lookup_label_for_goto rather than
        lookup_label.  Don't give errors about jumping into a statement
        expression or the scope of a variably modified type.  Don't set
        label_context_stack_se or label_context_stack_vm.
        (struct c_switch): Remove blocked_stmt_expr and blocked_vm
        fields.  Add bindings field.
        (c_start_case): Don't set deleted fields.  Set bindings field.
        (do_case): Rework order of tests.  Don't check blocked_stmt_expr
        or blocked_vm.  Call c_check_switch_jump_warnings.
        (c_finish_case): Don't test blocked_stmt_expr field.  Call
        c_release_switch_bindings.
        (c_begin_stmt_expr): Don't increment blocked_stmt_expr in
        c_switch_stack.  Don't walk label_context_stack_se labels.  Don't
        set label_context_sta