gcc/

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

2010-04-09  Iain Sandoe  <iains@gcc.gnu.org>

        PR bootstrap/43684
        * varasm.c (default_assemble_visibility): Wrap vars that are 
        set, but unused, by targets without GAS.
        * config/rs6000/rs6000.c: (paired_emit_vector_compare): 
        Remove set, but unused, vars.
        (rs6000_legitimize_tls_address): Likewise.
        (altivec_expand_dst_builtin): Likewise.
        * config/darwin.c (machopic_classify_symbol): Likewise.
        (machopic_indirection_name): Likewise.
        
2010-04-09  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (DWI): New mode iterator.
        (S): New mode attribute.
        (shift_operand): Ditto.
        (shift_immediate_operand): Ditto.
        (ashl_input_operand): Ditto.
        (ashl<mode>3): Macroize expander from ashl{qi,hi,si,di,ti}3_1
        using SDWIM mode iterator.
        (*ashl<mode>3_doubleword): New insn_and_split_pattern.  Macroize
        pattern from *ashl{di,ti}3_1 and corresponding splitters using
        DWI mode iterator.
        (*ashl<mode>3_doubleword peephole2): Macroize peephole2 pattern
        from corresponding peephole2 patterns.
        (x86_shift<mode>_adj_1): Macroize expander from x86_shift_adj_1
        and x86_64_shift_adj_1 using SWI48 mode iterator.
        (x86_shift<mode>_adj_2): Ditto.
        (*ashldi3_1_rex64): Split TYPE_LEA pattern.
        (*ashl<mode>3_1): Macroize insn from *ashlsi3_1 and *ashldi3_1_rex64
        using SWI48 mode iterator.
        (*ashl<mode>3_cmp): Macroize insn from *ashl{qi,hi,si}3_cmp and
        *ashldi3_cmp_rex64 using SWI mode iterator.
        (*ashl<mode>3_cconly): Macroize insn from *ashl{qi,hi,si}3_cconly and
        *ashldi3_cconly_rex64 using SWI mode iterator.
        * config/i386/i386.c (ix86_split_ashl): Update for renamed
        x86_shift<mode>_adj_{1,2}.
        (ix86_split_ashr): Ditto.
        (ix86_split_lshr): Ditto.

2010-04-09  Richard Guenther  <rguenther@suse.de>

        * target.h (builtin_conversion): Pass in input and output types.
        * targhooks.c (default_builtin_vectorized_conversion): Adjust.
        * targhooks.h (default_builtin_vectorized_conversion): Likewise.
        * tree-vect-stmts.c (vectorizable_conversion): Adjust.
        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): Adjust.

        * config/i386/i386.c (ix86_vectorize_builtin_conversion): Adjust.
        Handle AVX modes.
        * config/rs6000/rs6000.c (rs6000_builtin_conversion): Adjust.

2010-04-09  Richard Guenther  <rguenther@suse.de>

        PR target/43152
        * config/i386/sse.md (vcond<mode>): Handle AVX modes as well.

2010-04-09  Richard Guenther  <rguenther@suse.de>

        * tree-vectorizer.h (struct _stmt_vec_info): Document
        that vectype is the type of the LHS.
        (supportable_widening_operation, supportable_narrowing_operation): 
        Get both input and output vector types as arguments.
        (vect_is_simple_use_1): Declare.
        (get_same_sized_vectype): Likewise.
        * tree-vect-loop.c (vect_determine_vectorization_factor):
        Set STMT_VINFO_VECTYPE to the vector type of the def.
        (vectorizable_reduction): Adjust.
        * tree-vect-patterns.c (vect_recog_widen_mult_pattern):
        Adjust.  Specify the output vector type.
        (vect_pattern_recog_1): Adjust.
        * tree-vect-stmts.c (get_same_sized_vectype): New function.
        (vectorizable_call): Adjust.
        (vectorizable_conversion): Likewise.
        (vectorizable_operation): Likewise.
        (vectorizable_type_demotion): Likewise.
        (vectorizable_type_promotion): Likewise.
        (vect_analyze_stmt): Set STMT_VINFO_VECTYPE to the vector type of
        the def.
        (vect_is_simple_use_1): New function.
        (supportable_widening_operation): Get both input and output
        vector types.
        (supportable_narrowing_operation): Likewise.
        * tree-vect-slp.c (vect_schedule_slp_instance): Adjust.

2010-04-09  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/cygming.h (TARGET_OS_CPP_BUILTINS): Add
        __thiscall and _thiscall as predefined macros.
        * config/i386/i386.c (ix86_handle_cconv_attribute): Add
        thiscall attribute handling.
        (ix86_comp_type_attributes): Likewise.
        (ix86_function_regparm): Likewise.
        (ix86_return_pops_args): Likewise.
        (init_cumulative_args): Likewise.
        (find_drap_reg): Likewise.
        (ix86_static_chain): Likewise.
        (x86_this_parameter): Likewise.
        (x86_output_mi_thunk): Likewise.
        (ix86_attribute_table): Add description for thiscall attribute.
        * config/i386/i386.h (ix86_args): Adjust comment for member fastcall.
        * doc/extend.texi: Add documentation for thiscall.
        
2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/28584
        * c.opt (Wint-to-pointer-cast): Available in C++.
        * doc/invoke.texi (Wint-to-pointer-cast): Available in C++.

2010-04-08  Eric Botcazou  <ebotcazou@adacore.com>

        * tree.h (TREE_ADDRESSABLE): Document its effect for function types.
        * calls.c (expand_call): Pass the function type to aggregate_value_p.
        * function.c (aggregate_value_p): Do not honor DECL_BY_REFERENCE on
        the target function of a CALL_EXPR.  Honor TREE_ADDRESSABLE on the
        function type instead.  Reorder and simplify checks.

        * gimplify.c (gimplify_modify_expr_rhs) <WITH_SIZE_EXPR>: New case.

2010-04-08  Jing Yu  <jingyu@google.com>
            Zdenek Dvorak  <ook@ucw.cz>

        PR tree-optimization/42720
        * tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Move one-time
        loop unswitch conditions here from ...
        (tree_unswitch_single_loop): ... here.

2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-if-conv.c: Fix comments and simplify logic.

2010-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-if-conv.c (if_convertible_loop_p): Remove unused parameter.
        (tree_if_conversion): Same.  Update call to if_convertible_loop_p.
        (main_tree_if_conversion): Update call to tree_if_conversion.

2010-04-08  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 42485
        * doc/invoke.texi (-b,-V): Delete.
        * doc/tm.texi: Do not mention -b.
        * gcc.c (display_help): Delete -b and -V.
        (process_command): Delete -b and -V.
        * gcc.h (DEFAULT_SWITCH_TAKES_ARG): Delete -b and -V.

2010-04-08  Christian Borntraeger  <borntraeger@de.ibm.com>
            Wolfgang Gellerich  <gellerich@de.ibm.com>

        Implement target hook for loop unrolling
        * target.h (loop_unroll_adjust): Add a new target hook function.
        * target-def.h (TARGET_LOOP_UNROLL_ADJUST): Likewise.
        * doc/tm.texi (TARGET_LOOP_UNROLL_ADJUST): Document it.
        * config/s390/s390.c (TARGET_LOOP_UNROLL_ADJUST): Define it.
        (s390_loop_unroll_adjust): Implement the new target hook for s390.
        * loop-unroll.c (decide_unroll_runtime_iterations): Call loop unroll
        target hook.
        (decide_unroll_stupid): Likewise.

2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/43643
        * config/i386/gmon-sol2.c [__x86_64__]: Properly restore %rcx.

2010-04-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, i?86-*-solaris2.10): Fix grammar.
        (Specific, *-*-solaris2*): Likewise.
        Don't prefer Sun as over GNU as.

2010-04-08  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.c (override_options): Adjust the z10
          defaults for max-unroll-times, max-completely-peeled-insns
          and max-completely-peel-times.

2010-04-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_expand_movmem): Issue prefetch
        instructions for z10.
        (s390_expand_setmem): Likewise.
        (s390_expand_cmpmem): Likewise.

2010-04-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43679
        * tree-ssa-pre.c (eliminate): Only propagate copies.

2010-04-08  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/43681
        * expr.c (block_move_libcall_safe_for_call_parm): Avoid
        set but not used variable warning.

2010-04-08  Wei Guozhi  <carrot@google.com>

        PR target/41653
        * config/arm/arm.c (thumb1_size_rtx_costs): New function.
        (arm_size_rtx_costs): Call the new function when optimized for size.

2010-04-08  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43670
        * cfgexpand.c (expand_debug_expr): If for non-NULL offset
        op0 is not a MEM, just return NULL instead of assertion
        failure.
        (discover_nonconstant_array_refs): Don't walk debug stmts.

2010-04-08  Doug Kwan  <dougkwan@google.com>

        * configure.ac: Recognize gold and do not use its version number
        to test ld features.
        * configure: Regenerate.

2010-04-08  Maxim Kuvyrkov  <maxim@codesourcery.com>

        PR middle-end/40815
        * tree-ssa-reassoc.c (broken_up_substracts): Rename to plus_negates.
        (negate_value): Move code to push elements to broken_up_substracts ...
        (eliminate_plus_minus_pair): ... here.  Push operands that have no
        negative pair to plus_negates.
        (repropagate_negates, init_reassoc, fini_reassoc): Update.

2010-04-07  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/install.texi (Configuration): Move description of
        --enable-lto, --with-libelf*, --enable-gold from Java section to
        general section.

        * doc/generic.texi (Working with declarations)
        (Function Properties, C and C++ Trees): Fix typos.
        * doc/sourcebuild.texi (Top Level): Likewise.

2010-04-07  Jakub Jelinek  <jakub@redhat.com>

        PR c/18624
        * tree.h (DECL_READ_P): Define.
        (struct tree_decl_common): Add decl_read_flag.
        * c-decl.c (pop_scope): If TREE_USED but !DECL_READ_P, issue
        a set but not used warning.
        (merge_decls): Merge DECL_READ_P flag.
        (finish_decl, build_compound_literal): Set DECL_READ_P flag.
        (finish_function): Issue -Wunused-but-set-parameter diagnostics.
        * c-common.c (handle_used_attribute, handle_unused_attribute):
        Likewise.
        * c-tree.h (default_function_array_read_conversion, mark_exp_read):
        New prototypes.
        * c-typeck.c (default_function_array_read_conversion, mark_exp_read):
        New functions.
        (default_conversion, c_process_expr_stmt): Call mark_exp_read.
        * c-parser.c (c_parser_initializer, c_parser_expr_no_commas,
        c_parser_binary_expression, c_parser_cast_expression,
        c_parser_expr_list, c_parser_omp_atomic, c_parser_omp_for_loop):
        Call default_function_array_read_conversion instead of
        default_function_array_conversion where needed.
        (c_parser_unary_expression, c_parser_conditional_expression,
        c_parser_postfix_expression_after_primary, c_parser_initelt):
        Likewise.  Call mark_exp_read where needed.
        (c_parser_statement_after_labels, c_parser_asm_operands,
        c_parser_typeof_specifier, c_parser_sizeof_expression,
        c_parser_alignof_expression, c_parser_initval): Call mark_exp_read
        where needed.
        * common.opt (Wunused-but-set-variable, Wunused-but-set-parameter):
        New.
        * toplev.c (warn_unused_but_set_variable): Default to warn_unused.
        (warn_unused_but_set_parameter): Default to warn_unused
        && extra_warnings.
        * doc/invoke.texi: Document -Wunused-but-set-variable and
        -Wunused-but-set-parameter.

        * tree-ssa-pre.c (my_rev_post_order_compute): Remove set but not
        used count variable.
        * genemit.c (gen_expand, gen_split): Avoid set but not used warnings
        when operandN variables aren't used in the body of the expander
        or splitter.
        * tree-outof-ssa.c (FOR_EACH_ELIM_GRAPH_SUCC,
        FOR_EACH_ELIM_GRAPH_PRED): Avoid set but not used warnings.
        * tree-ssa-operands.h (FOR_EACH_SSA_TREE_OPERAND): Likewise.
        * tree-flow.h (FOR_EACH_IMM_USE_FAST, FOR_EACH_IMM_USE_STMT,
        FOR_EACH_IMM_USE_ON_STMT): Likewise.
        * tree.h (FOR_EACH_CONSTRUCTOR_ELT): Likewise.
        * tree.c (PROCESS_ARG): Likewise.

2010-04-07  Simon Baldwin  <simonb@google.com>

        * diagnostic.h (diagnostic_override_option_index): New macro to
        set a diagnostic's option_index.
        * c-tree.h (c_cpp_error): Add warning reason argument.
        * opts.c (_warning_as_error_callback): New.
        (register_warning_as_error_callback): Store callback for
        warnings enabled via enable_warning_as_error.
        (enable_warning_as_error): Call callback, minor code tidy.
        * opts.h (register_warning_as_error_callback): Declare.
        * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in
        response to -Werror=.
        (c_common_init_options): Register warning_as_error_callback in opts.c.
        * common.opt: Add -Wno-cpp option.
        * c-common.c (struct reason_option_codes_t): Map cpp warning
        reason codes to gcc option indexes.
        * (c_option_controlling_cpp_error): New function, lookup the gcc
        option index for a cpp warning reason code.
        * (c_cpp_error): Add warning reason argument, call
        c_option_controlling_cpp_error for diagnostic_override_option_index.
        * doc/invoke.texi: Document -Wno-cpp.

2010-04-07  Richard Guenther  <rguenther@suse.de>

        * ipa-reference.c (mark_load): Use get_base_address.
        (mark_store): Likewise.

        * tree-ssa-ccp.c (gimplify_and_update_call_from_tree): Avoid
        inserting GIMPLE_NOPs into the IL.
        * tree-ssa-structalias.c (get_constraint_for_component_ref):
        Explicitly strip handled components and indirect references.
  
        * fold-const.c (fold_unary_loc): Do not strip qualifiers when
        folding address expressions.
        * gimple.c (gimple_ior_addresses_taken_1): Use get_base_address.
        * tree-ssa-alias.c (decl_refs_may_alias_p): Do not use
        operand_equal_p to compare decls.
        (ptr_deref_may_alias_decl_p): Likewise.
        * tree-ssa-operands.c (get_asm_expr_operands): Simplify
        * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond):
        Handle reversed comparison ops.
        * tree-sra.c (asm_visit_addr): Use get_base_address.
        * ipa-prop.c (visit_store_addr_for_mod_analysis): Use get_base_address.
        * ipa-reference.c (mark_address): Use get_base_address.

2010-04-07  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-forwprop.c (forward_propagate_addr_expr):
        Propagate constants everywhere.

2010-04-07  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43516
        * tree.c (MAX_INT_CACHED_PREC): Define.
        (nonstandard_integer_type_cache): New array.
        (build_nonstandard_integer_type): Cache results for precision
        <= MAX_INT_CACHED_PREC.

2010-04-07  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (-fargument-alias, -fargument-noalias,
        -fargument-noalias-global, -fargument-noalias-anything): Remove.
        * common.opt: Likewise.
        * tree-ssa-structalias.c (intra_create_variable_infos): Adjust comment.
        * alias.c (base_alias_check): Remove flag_argument_noalias handling.
        (nonoverlapping_memrefs_p): Likewise.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
        * opts.c (common_handle_option): Handle OPT_fargument_alias,
        OPT_fargument_noalias, OPT_fargument_noalias_anything and
        OPT_fargument_noalias_global for backward compatibility.

2010-04-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43270
        * tree-vrp.c (check_array_ref): Fix flexible array member detection.
        * tree-ssa-sccvn.h (fully_constant_vn_reference_p): Declare.
        * tree-ssa-pre.c (phi_translate_1): Adjust.
        (fully_constant_expression): Split out vn_reference handling to ...
        * tree-ssa-sccvn.c (fully_constant_vn_reference_p): ... here.
        Fold reads from constant strings.
        (vn_reference_lookup): Handle fully constant references.
        (vn_reference_lookup_pieces): Likewise.
        * Makefile.in (expmed.o-warn): Add -Wno-error.

2010-04-07  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (find_param_candidates): Allow scalar va_list types.

2010-04-07  Iain Sandoe  <iains@gcc.gnu.org>

        PR driver/41594
        * gcc.c: Add -static-libstdc++ to list of recognized options.

2010-04-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (i[34567]86-*-solaris2*): Default with_tune_32 to generic.

2010-04-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42617
        * expr.c (expand_expr_real_1): For TARGET_MEM_REFs with pointer
        bases build simple mem attributes to retain points-to information.

2010-04-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42617
        * alias.c (ao_ref_from_mem): Without MEM_OFFSET or MEM_SIZE
        preserve points-to related information.

2010-04-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42617
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Do not
        discard plain indirect references.
        * fold-const.c (operand_equal_p): Guard against NULL_TREE type.
        * tree.c (tree_nop_conversion): Likewise.

2010-04-07  Dodji Seketeli  <dodji@redhat.com>

        PR debug/43628
        * dwarf2out.c (modified_type_die): Ignore artificial typedefs.

2010-04-06  Kai Tietz  <kai.tietz@onevision.com>

        * config/i386/i386.c (ix86_handle_cconv_attribute): Ignore
        calling convention attributes on METHOD_TYPEs for w64 ABI, too.

2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-if-conv.c: Fix indentation and comments.

2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-if-conv.c: Sort static functions in topological order.

2010-04-07  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-if-conv.c: Fix indentation and comments.

2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43519
        * graphite-clast-to-gimple.c (max_signed_precision_type): Use
        lang_hooks.types.type_for_size instead of
        build_nonstandard_integer_type.
        When converting an unsigned type to signed, double its precision.
        (gcc_type_for_interval): Use lang_hooks.types.type_for_size.
        (gcc_type_for_iv_of_clast_loop): Call max_signed_precision_type.
        (graphite_create_new_loop_guard): When ub + 1 wraps around,
        use lb <= ub.

2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43519
        * graphite-clast-to-gimple.c (graphite_create_new_loop_guard): Use
        POINTER_PLUS_EXPR for pointer types.

2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43519
        * Makefile.in (graphite-clast-to-gimple.o): Depends on langhooks.h.
        * graphite-clast-to-gimple.c: Include langhooks.h.
        (max_signed_precision_type): New.
        (max_precision_type): Takes two types as arguments.
        (precision_for_value): New.
        (precision_for_interval): New.
        (gcc_type_for_interval): New.
        (gcc_type_for_value): New.
        (gcc_type_for_clast_term): New.
        (gcc_type_for_clast_red): New.
        (gcc_type_for_clast_bin): New.
        (gcc_type_for_clast_expr): Split up into several functions.
        (gcc_type_for_clast_eq): Rewritten.
        (compute_bounds_for_level): New.
        (compute_type_for_level_1): New.
        (compute_type_for_level): New.
        (gcc_type_for_cloog_iv): Removed.
        (gcc_type_for_iv_of_clast_loop): Rewritten.
        (graphite_create_new_loop): Compute the lower and upper bound types
        with gcc_type_for_clast_expr.
        (graphite_create_new_loop_guard): Same.
        (find_cloog_iv_in_expr): Removed.
        (compute_cloog_iv_types_1): Removed.
        (compute_cloog_iv_types): Removed.
        (gloog): Do not call compute_cloog_iv_types.
        * graphite-sese-to-poly.c (new_gimple_bb): Do not initialize
        GBB_CLOOG_IV_TYPES.
        (free_data_refs_aux): Do not free GBB_CLOOG_IV_TYPES.
        * sese.h (struct gimple_bb): Removed field cloog_iv_types.
        (GBB_CLOOG_IV_TYPES): Removed.

2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Assert that
        gimple_phi_num_args of the loop close SSA phi node is equal to 1.
        (detect_commutative_reduction): Same.

2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (graphite_verify): Remove redundant
        call to verify_ssa.  Invoke verify_loop_closed_ssa with an extra
        argument.
        * graphite-scop-detection.c (canonicalize_loop_closed_ssa_form): Same.
        * graphite-sese-to-poly.c (rewrite_reductions_out_of_ssa): Same.
        (rewrite_commutative_reductions_out_of_ssa): Same.
        * passes.c (execute_function_todo): Call verify_ssa for every pass
        in the LNO.  Invoke verify_loop_closed_ssa with an extra argument.
        * tree-flow.h (verify_loop_closed_ssa): Update declaration.
        * tree-parloops.c (parallelize_loops): Invoke verify_loop_closed_ssa
        with an extra argument.
        * tree-ssa-loop-manip.c (check_loop_closed_ssa_stmt): Same.  Call
        verify_ssa only when the extra argument is true.
        (gimple_duplicate_loop_to_header_edge): Invoke verify_loop_closed_ssa
        with an extra argument.
        (tree_transform_and_unroll_loop): Same.

2010-04-06  Sebastian Pop  <sebastian.pop@amd.com>

        * passes.c (execute_function_todo): Call verify_loop_closed_ssa
        for all the passes of the LNO having LOOP_CLOSED_SSA.
        * tree-if-conv.c (pass_if_conversion): Remove TODO_verify_loops.
        * tree-loop-distribution.c (pass_loop_distribution): Same.
        * tree-pass.h (TODO_verify_loops): Removed.
        * tree-ssa-loop.c (pass_tree_loop_init): Same.
        (pass_lim): Same.
        (pass_tree_unswitch): Same.
        (pass_predcom): Same.
        (pass_vectorize): Same.
        (pass_linear_transform): Same.
        (pass_graphite_transforms): Same.
        (pass_iv_canon): Same.
        (pass_complete_unroll): Same.
        (pass_complete_unrolli): Same.
        (pass_parallelize_loops): Same.
        (pass_loop_prefetch): Same.
        (pass_iv_optimize): Same.

2010-04-06  Changpeng Fang  <changpeng.fang@amd.com>

        PR middle-end/32824
        * passes.c (init_optimization_passes): Move pass_lim before
        pass_copy_prop and pass_dce_loop.

2010-04-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/43667
        * config/i386/i386.c (bdesc_multi_arg): Use OPTION_MASK_ISA_XOP
        instead of OPTION_MASK_ISA_AVX for __builtin_ia32_vpermil2p*.
        (ix86_expand_args_builtin): Use V*_FTYPE_* enum codes instead of
        MULTI_* defines for 4 argument vpermil2p* builtins.

2010-04-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386-protos.h (x86_maybe_negate_const_int): Declare.
        * config/i386/i386.c (x86_maybe_negate_const_int): New.
        (x86_output_mi_thunk): Use x86_maybe_negate_const_int.
        * config/i386/i386.md (*add<mode>_1, *addsi_1_zext, *addhi_1,
        *addhi_1_lea, *addqi_1, *addqi_1_lea, *addqi_1_slp, *add<mode>_2,
        *addsi_2_zext, *addhi_2, *addqi_2, *add<mode>_3, *addsi_3_zext,
        *addhi_3, *addqi_3,*add<mode>_5, *addhi_5, *addqi_5):
        Use x86_maybe_negate_const_int to output insn mnemonic.
        (*adddi_4, *addsi_4, *addhi_4, *addqi_4): Ditto.  Remove overflow
        check from instruction predicate.  Update comments.
        * config/i386/sync.md (sync_add<mode>): Use
        x86_maybe_negate_const_int to output insn mnemonic.

2010-04-06  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/42906
        * tree-ssa-dce.c (mark_control_dependent_edges_necessary): Add
        IGNORE_SELF argument.  Set visited_control_parents for fully
        processed BBs.
        (find_obviously_necessary_stmts): Update call of
        mark_control_dependent_edges_necessary.
        (propagate_necessity): Likewise.  Handle PHI edges more curefully.

2010-04-06  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md: Remove comment about 'e' and 'E'
        operand modifier.

2010-04-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43627
        * tree-vrp.c (extract_range_from_unary_expr): Widenings
        of [1, +INF(OVF)] go to [1, +INF(OVF)] of the wider type,
        not varying.

2010-04-06  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Change to 4.6.0.

        PR target/43638
        * config/i386/i386.c (print_operand): Remove 'e' and 'E' code
        handling.

2010-04-06  Richard Guenther  <rguenther@suse.de>

        PR middle-end/43661
        * fold-const.c (fold_comparison): Handle X * 0 CMP 0.

2010-04-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/invoke.texi (Optimize Options): Document that LTO
        won't remove object access purely due to incompatible
        declarations.

2010-04-04  Matthias Klose  <doko@ubuntu.com>

        * graphite-sese-to-poly.c (translate_scalar_reduction_to_array):
        Initialize variable.

2010-04-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42509
        * alias.c (nonoverlapping_memrefs_p): For spill-slot accesses
        require a non-NULL MEM_OFFSET.

2010-04-02  Steven Bosscher  <steven@gcc.gnu.org>

        * ada/gcc-interface/Make-lang.in, alias.c, attribs.c, auto-inc-dec.c,
        basic-block.h, bb-reorder.c, calls.c, c-common.c, cgraph.h,
        collect2.h, config/alpha/alpha.c, config/alpha/alpha.md,
        config/alpha/predicates.md, config/arm/arm.md,
        config/arm/lib1funcs.asm, config/arm/neon-schedgen.ml,
        config/avr/avr.c, config/avr/avr.md, config/bfin/bfin.c,
        config/darwin9.h, config/darwin.c, config/darwin.h,
        config/h8300/h8300.c, config/i386/cpuid.h, config/i386/cygming.h,
        config/i386/cygwin.h, config/i386/mingw32.h, config/i386/msformat-c.c,
        config/i386/sol2-10.h, config/i386/xopintrin.h, config/ia64/ia64.c,
        config/ia64/ia64.md, config/ia64/sync.md, config/mep/mep.c,
        config/mips/mips.md, config/mn10300/mn10300.c,
        config/mn10300/mn10300.h, config/pa/pa.c, config/pa/pa.md,
        config/rs6000/aix.h, config/rs6000/dfp.md,
        config/rs6000/rs6000-builtin.def, config/rs6000/rs6000-c.c,
        config/rs6000/vector.md, config/rtems.h, config/rx/rx.md,
        config/s390/s390.md, config/sol2-c.c, config/sparc/sol2-bi.h,
        config/sparc/sol2-gas.h, config/sparc/sparc.h, config/sparc/sparc.md,
        config/sparc/sparc-protos.h, config/spu/spu.c, config/spu/spu-c.c,
        config/t-darwin, convert.c, c.opt, c-opts.c, cp/Make-lang.in,
        c-pretty-print.c, c-typeck.c, df-core.c, df-scan.c, diagnostic.c,
        diagnostic.h, doc/cppopts.texi, doc/cpp.texi, doc/extend.texi,
        doc/gimple.texi, doc/languages.texi, doc/plugins.texi, doc/rtl.texi,
        doc/standards.texi, doc/tree-ssa.texi, doc/trouble.texi, dominance.c,
        fold-const.c, fortran/Make-lang.in, fwprop.c, gcc-plugin.h,
        gensupport.c, gimple.h, gimple-iterator.c, graphite.c,
        graphite-clast-to-gimple.c, graphite-clast-to-gimple.h,
        graphite-dependences.c, graphite-poly.c, graphite-poly.h,
        graphite-ppl.c, graphite-ppl.h, graphite-scop-detection.c,
        graphite-sese-to-poly.c, graphite-sese-to-poly.h, ifcvt.c, intl.c,
        intl.h, ipa.c, ipa-cp.c, ipa-inline.c, ipa-prop.c, ipa-prop.h,
        ipa-pure-const.c, ipa-reference.c, ipa-type-escape.c, ira-color.c,
        ira-conflicts.c, ira-lives.c, java/Make-lang.in, lambda-code.c,
        loop-invariant.c, lto/Make-lang.in, lto-streamer.h, lto-streamer-in.c,
        objc/Make-lang.in, objcp/Make-lang.in, omp-low.c, optc-gen.awk,
        opt-functions.awk, opth-gen.awk, params.def, passes.c,
        postreload-gcse.c, print-tree.c, recog.c, regrename.c, reload.h,
        rtl.def, sched-int.h, sched-rgn.c, sel-sched-dump.c, sese.c, sese.h,
        store-motion.c, stor-layout.c, tree-cfgcleanup.c, tree-chrec.c,
        tree-complex.c, tree-data-ref.c, tree.def, tree-eh.c, tree-flow.h,
        tree-flow-inline.h, tree.h, tree-loop-distribution.c, tree-outof-ssa.c,
        tree-parloops.c, tree-pass.h, tree-predcom.c, tree-profile.c,
        tree-scalar-evolution.c, tree-ssa-address.c, tree-ssa-alias.c,
        tree-ssa-coalesce.c, tree-ssa-copy.c, tree-ssa-dce.c, tree-ssa-dom.c,
        tree-ssa-dse.c, tree-ssa-loop-im.c, tree-ssa-loop-ivcanon.c,
        tree-ssa-loop-manip.c, tree-ssa-math-opts.c, tree-ssa-operands.c,
        tree-ssa-pre.c, tree-ssa-sccvn.c, tree-ssa-structalias.c,
        tree-ssa-uncprop.c, tree-tailcall.c, tree-vect-data-refs.c,
        tree-vect-loop.c, tree-vectorizer.h, tree-vect-slp.c, tree-vrp.c,
        unwind-dw2-fde-darwin.c, varpool.c: Update copyright years.

2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR other/43620
        * doc/install.texi (Prerequisites): Bump Automake version to 1.11.1.
        * aclocal.m4: Regenerate.

2010-04-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43629
        * tree-ssa-ccp.c (likely_value): Reset all_undefined_operands
        if we have seen a constant value.

2010-04-02  Joseph Myers  <joseph@codesourcery.com>

        * read-rtl.c (read_rtx_1): Give an error for EOF while looking for ']'.

2010-04-02  Richard Earnshaw  <rearnsha@arm.com>

        PR target/43469
        * arm.c (legitimize_tls_address): Adjust call to
        gen_tls_load_dot_plus_four.
        (arm_note_pic_base): New function.
        (arm_cannot_copy_insn_p): Use it.
        * thumb2.md (tls_load_dot_plus_four): Rework to avoid use of '+' in
        constraint.

2010-04-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR bootstrap/43531

        Revert:
        2009-09-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * Makefile.in ($(out_object_file)): Depend on
        gt-$(basename $(notdir $(out_file))).h.

2010-04-01  Ralf Corsépius <ralf.corsepius@rtems.org>

        * config.gcc (lm32-*-rtems*): Add t-lm32.

2010-04-01  Joel Sherrill <joel.sherrill@oarcorp.com>

        * config.gcc: Add lm32-*-rtems*.
        * config/lm32/rtems.h: New file.

2010-04-01  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/42609
        * config/i386/cygwin.h (CXX_WRAP_SPEC): Disable spec when -mno-cygwin.

2010-04-01  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (output_compilation_unit_header): For
        -gdwarf-4 use version 4 instead of version 3.
        (output_line_info): For version 4 and above emit additional
        maximum ops per insn header field.
        (DWARF_LINE_DEFAULT_MAX_OPS_PER_INSN): Define.

        * dwarf2out.c (is_c_family, is_java): Remove.
        (lower_bound_default): New function.
        (add_bound_info, gen_descr_array_type_die): Use it.

2010-04-01  Dodji Seketeli  <dodji@redhat.com>

        PR debug/43325
        * dwarf2out.c (gen_variable_die): Allow debug info for variable
        re-declaration when it happens in a function.

2010-04-01  Aldy Hernandez  <aldyh@redhat.com>

        * cgraph.c (cgraph_add_function_insertion_hook): Update comment.
        (cgraph_remove_function_insertion_hook): Same.
        (cgraph_call_function_insertion_hooks): Same.

2010-04-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/43614
        * tree-ssa-address.c (copy_mem_ref_info): Copy TREE_SIDE_EFFECTS
        and TREE_THIS_VOLATILE.
        (copy_ref_info): Likewise.
        * tree-ssa-operands.c (get_tmr_operands): Check TREE_THIS_VOLATILE.
        * tree.c (build6_stat): Ignore side-effects of all but arg5
        for TARGET_MEM_REF.  Set TREE_THIS_VOLATILE from arg5 of
        TARGET_MEM_REF.

2010-04-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43607
        * ipa-type-escape.c (check_call): Do not access non-existing
        arguments.

2010-04-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/43602
        Revert
        2010-03-30  Seongbae Park <seongbae.park@gmail.com>
                    Jack Howarth <howarth@bromo.med.uc.edu>

        * tree-profile.c (tree_init_ic_make_global_vars): Make static
        variables TLS.

2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Prerequisites): Document libelf usability on
        IRIX 5/6 and Solaris 2.
        (Specific, i?86-*-solaris2.10): No 64-bit default configuration.
        Update GNU as, GNU ld requirements.
        (Specific, *-*-solaris2*): Document Solaris 7 obsoletion, removal.
        Document Sun Studio compiler download.
        Update and simplify as, ld recommendations.
        (Specific, *-*-solaris2.7): Note obsoletion, removal.

2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (i[34567]86-*-solaris2*): Default with_arch_32,
        with_tune_32 to pentium4.

2010-04-01  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/cpuid.h (__get_cpuid_max): Move misplaced comment.

2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, mips-sgi-irix5): Document IRIX 5
        obsoletion, removal.
        Update IDO URL.
        Document GNU as requirement.
        Update configure requirements.
        (Specific, mips-sgi-irix6): Document IRIX 6 < 6.5 obsoletion, removal.
        Recomment IRIX 6.5.18+.
        Document IDF/IDL requirement.
        Document GNU as requirement.
        Document GNU ld bootstrap failure.
        Remove freeware.sgi.com reference.

2010-04-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, alpha*-dec-osf*): Document Tru64
        UNIX V4.0, V5.0 obsoletion, removal.
        Remove --with-gc=simple reference.
        Update VM requirements during bootstrap.
        Remove -oldas bootstrap description.
        Update binutils reference.
        Remove comparison failure note.

2010-03-31  Richard Guenther  <rguenther@suse.de>
            Zdenek Dvorak  <ook@ucw.cz>
            Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43464
        * tree-ssa-copy.c (init_copy_prop): Handle loop close phi nodes
        with multiple arguments.
        (execute_copy_prop): Remove call to rewrite_into_loop_closed_ssa.

2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (print_pddr): Call print_pdr with an
        extra argument.
        * graphite-poly.c (debug_pdr): Add an extra argument for the
        verbosity level.
        (print_pdr): Same.
        (print_pbb_domain): Same.
        (print_pbb): Same.
        (print_scop_context): Same.
        (print_scop): Same.
        (print_cloog): Same.
        (debug_pbb_domain): Same.
        (debug_pbb): Same.
        (print_pdrs): Same.
        (debug_pdrs): Same.
        (debug_scop_context): Same.
        (debug_scop): Same.
        (debug_cloog): Same.
        (print_scop_params): Same.
        (debug_scop_params): Same.
        (print_iteration_domain): Same.
        (print_iteration_domains): Same.
        (debug_iteration_domain): Same.
        (debug_iteration_domains): Same.
        (print_scattering_function): Same.
        (print_scattering_functions): Same.
        (debug_scattering_function): Same.
        (debug_scattering_functions): Same.
        * graphite-poly.h (debug_pdr): Update declaration.
        (print_pdr): Same.
        (print_pbb_domain): Same.
        (print_pbb): Same.
        (print_scop_context): Same.
        (print_scop): Same.
        (print_cloog): Same.
        (debug_pbb_domain): Same.
        (debug_pbb): Same.
        (print_pdrs): Same.
        (debug_pdrs): Same.
        (debug_scop_context): Same.
        (debug_scop): Same.
        (debug_cloog): Same.
        (print_scop_params): Same.
        (debug_scop_params): Same.
        (print_iteration_domain): Same.
        (print_iteration_domains): Same.
        (debug_iteration_domain): Same.
        (debug_iteration_domains): Same.
        (print_scattering_function): Same.
        (print_scattering_functions): Same.
        (debug_scattering_function): Same.
        (debug_scattering_functions): Same.

2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scattering_function_1): New.
        (print_scattering_function): Call it.
        (print_scop_params): Remove spaces at the end of lines.
        (print_cloog): New.
        (debug_cloog): New.
        * graphite-poly.h (print_cloog): Declared.
        (debug_cloog): Declared.

2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (graphite_loop_normal_form): Add the IV bump
        in loop->header.
        * tree-flow.h (canonicalize_loop_ivs): Updated declaration.
        * tree-parloops.c (gen_parallel_loop): Add the IV bump in loop->latch.
        * tree-ssa-loop-manip.c (canonicalize_loop_ivs): Add a new parameter
        to switch between adding the IV bump in loop->latch or in loop->header.

2010-03-31  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scattering_function): Pretty print following
        the scoplib format.
        (print_pdr): Same.
        (print_pbb_domain): Same.
        (dump_gbb_cases): Same.
        (dump_gbb_conditions): Same.
        (print_pdrs): Same.
        (print_pbb): Same.
        (print_scop_params): Same.
        (print_scop_context): Same.
        (print_scop): Same.
        (print_pbb_body): New.
        (lst_indent_to): New.
        (print_lst): Start new lines with a #.
        * graphite-poly.h (pbb_bb): New.
        (pbb_index): Use pbb_bb.
        * graphite-ppl.c (ppl_print_powerset_matrix): Print the number of
        disjuncts.
        * tree-data-ref.c (dump_data_reference): Start new lines with a #.

2010-03-31  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (size_of_die): For -gdwarf-4 use
        uleb128 size instead of fixed 1 or 2 for dw_val_class_loc
        and 0 instead of 1 for dw_val_class_flag.
        (value_format): For -gdwarf-4 use DW_FORM_sec_offset for
        dw_val_class_range_list, dw_val_class_loc_list,
        dw_val_class_lineptr and dw_val_class_macptr, use
        DW_FORM_flag_present for dw_val_class_flag and
        DW_FORM_exprloc for dw_val_class_loc.
        (output_die): For -gdwarf-4 print dw_val_class_loc
        size as uleb128 instead of 1 or 2 bytes and don't print
        anything for dw_val_class_flag.

        * var-tracking.c (vt_init_cfa_base): Use cselib_lookup_from_insn
        instead of cselib_lookup following by tweaking locs->setting_insn.

        PR bootstrap/43596
        * cselib.c (cselib_process_insn): Clear cselib_current_insn
        even before returning from label, setjmp call or volatile asm
        handling.

2010-03-31  Richard Guenther  <rguenther@suse.de>

        PR middle-end/43600
        * cgraphunit.c (cgraph_output_in_order): Do not allocate
        temporary data on stack.

2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sparc/sysv4.h (PUSHSECTION_FORMAT): Remove undef.
        (PUSHSECTION_ASM_OP): Remove.
        (POPSECTION_ASM_OP): Remove.
        (PUSHSECTION_FORMAT): Remove.
        * config/sol2.h (PUSHSECTION_FORMAT): Define.
        * config/sparc/sol2.h [!USE_GAS] (PUSHSECTION_FORMAT): Redefine.
        * config/sol2.c (solaris_output_init_fini): Use it.

2010-03-31  Jie Zhang  <jie@codesourcery.com>

        PR 43574
        * opt-functions.awk (var_type_struct): Use signed char type
        for simple variables.

2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sol2.c: Include output.h.
        (solaris_assemble_visibility): New function.
        * config/t-sol2 (sol2.o): Add output.h dependency.
        * config/sol2-protos.h (solaris_assemble_visibility): Declare.
        * config/sol2.h [!USE_GAS] (TARGET_ASM_ASSEMBLE_VISIBILITY):
        Redefine.

2010-03-31  Jakub Jelinek  <jakub@redhat.com>

        PR target/43580
        * config/arm/arm.c (arm_save_coproc_regs): Use Pmode instead of
        V2SImode or XFmode on PRE_DEC.

        PR debug/43557
        * cfgexpand.c (expand_debug_expr): Handle VOIDmode mode like
        BLKmode.

2010-03-31  Jie Zhang  <jie@codesourcery.com>

        PR 43562
        * reload.h (caller_save_initialized_p): Declare.
        * toplev.c (backend_init_target): Don't call
        init_caller_save but set caller_save_initialized_p to false.
        * caller-save.c (caller_save_initialized_p): Define.
        (init_caller_save): Check caller_save_initialized_p.
        * ira.c (ira): Call init_caller_save if flag_caller_saves.

2010-03-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/39048
        * config.gcc (i[34567]86-*-solaris2*): Add i386/t-fprules-softfp
        and soft-fp/t-softfp to tmake_file.
        * config/i386/sol2.h (LIBGCC2_HAS_TF_MODE): Redefine.
        (LIBGCC2_TF_CEXT): Define.
        (TF_SIZE): Define.

2010-03-30  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42977
        * cselib.c (n_useless_values): Document handling of debug locs.
        (n_useless_debug_values, n_debug_values): New variables.
        (new_elt_loc_list): Don't add to debug values, keep count.
        (promote_debug_loc): New.
        (cselib_reset_table): Zero new variables.
        (entry_and_rtx_equal_p): Promote debug locs.
        (discard_useless_locs): Increment n_useless_debug_values for
        debug values.
        (remove_useless_values): Adjust n_useless_values and n_debug_values
        with n_useless_debug_values.
        (add_mem_for_addr): Promote debug locs.
        (cselib_lookup_mem): Likewise.
        (cselib_lookup_addr): Renamed to...
        (cselib_lookup_addr_1): ... this.  Promote debug locs.  Don't call...
        (cselib_log_lookup): ... this.  Turn into...
        (cselib_lookup_addr): ... new wrapper.
        (cselib_lookup_from_insn): New.
        (cselib_invalidate_regno): Increment n_useless_debug_values for
        debug values.
        (cselib_invalidate_mem): Likewise.
        (cselib_process_insn): Take n_deleted and n_debug_values into
        account to guard remove_useless_value call.
        (cselib_finish): Zero n_useless_debug_values.
        * cselib.h (cselib_lookup_from_insn): Declare.
        * sched-deps.c (sched_analyze_1): Use cselib_lookup_from_insn.
        (sched_analyze_2): Likewise.

2010-03-30  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (use_narrower_mode_test, use_narrower_mode): New
        functions.
        (adjust_mems): Replace narrowing SUBREG of expression containing
        just PLUS, MINUS, MULT and ASHIFT of registers and constants
        with operations in the narrower mode.

        PR debug/43593
        * var-tracking.c (dataflow_set_clear_at_call): Invalidate just
        regs_invalidated_by_call instead all call_used_reg_set registers.

2010-03-30  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43430
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Replace type
        pointer comparisons with types_compatible_p.
        * tree-vect-stmts.c (vectorizable_call): Same.
        (vectorizable_condition): Same.

2010-03-30  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_emit_prologue): Omit issuing a dynamic
        stack check if the mask would be zero.

2010-03-30  Seongbae Park <seongbae.park@gmail.com>
            Jack Howarth <howarth@bromo.med.uc.edu>

        * tree-profile.c (tree_init_ic_make_global_vars): Make static
        variables TLS.

2010-03-30  Joseph Myers  <joseph@codesourcery.com>

        PR other/25232
        * libgcc-std.ver (GCC_4.5.0): Define version.  Include __unordxf2
        and __unordtf2.
        * config/bfin/libgcc-bfin.ver (GCC_4.5.0): Define version.
        Include ___unordxf2 and ___unordtf2.
        * config/i386/libgcc-glibc.ver: Do not define inheritance from
        GCC_4.4.0 here.

2010-03-30  Tarik Graba  <tarik.graba@telecom-paristech.fr>

        * config/lm32/t-lm32: New file.
        * config.gcc: Use the above file when targetting lm32.

2010-03-28  Duncan Sands  <baldrick@free.fr>

        * Makefile.in (PLUGIN_HEADERS): Add except.h.

2010-03-29  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43431
        * tree-vect-loop.c (vect_estimate_min_profitable_iters):
        Improve vectorization cost model diagnostic.

2010-03-29  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43436
        * tree-vect-data-refs.c (vect_analyze_data_refs): When
        compute_data_dependences_for_loop returns false, early exit
        and output an extra diagnostic for the failed data reference
        analysis.

2010-03-29  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43560
        * tree-ssa-loop-im.c (ref_always_accessed_p): Add store_p parameter.
        (can_sm_ref_p): Treat stores to readonly locations as trapping.

2010-03-29  Jie Zhang  <jie@codesourcery.com>

        PR 43564
        * toplev.c (process_options): Set optimization_default_node
        and optimization_current_node.
        * opts.c (decode_options): Don't set optimization_default_node
        and optimization_current_node.

2010-03-29  Ralf Corsépius  <ralf.corsepius@rtems.org>

        * config/rtems.h: Abandon -qrtems_debug.

2010-03-28  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/43505
        * cgraph.c (cgraph_clone_node): When clonning a clone, replacement
        map should not be copied.

2010-03-27  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/41674
        * cgraphunit.c (cgraph_build_static_cdtor): If target doesn't have
        cdtors, set DECL_PRESERVE_P.
        * ipa.c (cgraph_externally_visible_p): Return true if declaration
        should be preseved.

2010-03-27  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/43528
        * stor-layout.c (place_field): Check that constant fits into
        unsigned HWI when skipping calculation of MS bitfield layout.

2010-03-27  Jan Hubicka  <jh@suse.cz>

        PR middle-end/43391
        * varasm.c (make_decl_rtl): Deal with COMMON flag to make
        notice_global_symbol work.

2010-03-27  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (dwarf2_debug_hooks): Use dwarf2out_function_decl
        instead of dwarf2out_decl.
        (struct var_loc_node): Remove section_label field.
        (dwarf2out_function_decl): New function.
        (dwarf2out_var_location): Don't set section_label field.
        (dwarf2out_begin_function): Don't empty decl_loc_table here.

2010-03-26  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR tree-optimization/43544
        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION):
        First argument for builtin vectorized function hook is now a
        tree to be able to distinguish between machine specific and
        standard builtins.
        * targhooks.c (default_builtin_vectorized_function): Ditto.
        * targhooks.h (default_builtin_vectorized_function): Ditto.
        * target.h (struct gcc_target): Ditto.
        * tree-vect-stmts.c (vectorizable_function): Ditto.
        * config/i386/i386.c (ix86_builtin_vectorized_function): Ditto.
        * config/rs6000/rs6000.c (rs6000_builtin_vectorized_function):
        Ditto.

2010-03-26  Joseph Myers  <joseph@codesourcery.com>

        PR c/43381
        * c-decl.c (get_parm_info): Assert that decl going in OTHERS has a
        nested binding iff it is a FUNCTION_DECL.
        (store_parm_decls_newstyle): Pass nested=true to bind for
        FUNCTION_DECLs amongst parameters.

2010-03-26  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (vt_expand_loc_callback): Don't run
        cselib_expand_value_rtx_cb in dummy mode if
        cselib_dummy_expand_value_rtx_cb returned false.

        * var-tracking.c (emit_note_insn_var_location): For one part
        notes with offset 0, don't add EXPR_LIST around the location.
        * dwarf2out.c (loc_descriptor, dw_loc_list_1,
        add_location_or_const_value_attribute): Adjust for that change.

        PR debug/43540
        * dwarf2out.c (reg_save): For DW_CFA_expression put regnum
        into first operand and location into second.
        (dw_cfi_oprnd1_desc): Return dw_cfi_oprnd_reg_num instead of
        dw_cfi_oprnd_loc for DW_CFA_expression.
        (dw_cfi_oprnd2_desc): Return dw_cfi_oprnd_loc for DW_CFA_expression.
        (output_cfa_loc, output_cfa_loc_raw): For DW_CFA_expression
        assume first argument is regnum and second argument is location.

2010-03-26  Uros Bizjak  <ubizjak@gmail.com>

        PR target/42113
        * config/alpha/alpha.md (*cmp_sadd_si): Change mode
        of scratch register to DImode.  Split to DImode comparison operator.
        Use SImode subreg of scratch register in the multiplication.
        (*cmp_sadd_sidi): Ditto.
        (*cmp_ssub_si): Ditto.
        (*cmp_ssub_sidi): Ditto.

2010-03-26  Uros Bizjak  <ubizjak@gmail.com>

        PR target/43524
        * config/i386/i386.c (ix86_expand_prologue) [TARGET_STACK_PROBE]:
        Remove invalid assert and wrong comment.

2010-03-26  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43516
        * flags.h (final_insns_dump_p): New extern.
        * final.c (final_insns_dump_p): New variable.
        (rest_of_clean_state): Set it before -fdump-final-insns=
        dumping, clear afterwards.
        * print-rtl.c (print_rtx): If final_insns_dump_p don't dump
        MEM_ALIAS_SET on MEMs.

2010-03-26  David S. Miller  <davem@davemloft.net>

        * configure.ac: Fix sparc GOTDATA_OP bug check.
        * configure: Rebuild.

2010-03-26  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.md (cmptf_internal2): Correct comparison.

2010-03-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/tm.texi (Sections): Document TLS_COMMON_ASM_OP,
        TLS_SECTION_ASM_FLAG.

2010-03-25  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/43511
        * config/i386/i386.c (ix86_code_end): Set DECL_WEAK if TARGET_MACHO.
        Clear first_function_block_is_cold.

        PR c/43385
        * gimplify.c (gimple_boolify): Only recurse on __builtin_expect
        argument if the argument is truth_value_p.

2010-03-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/constraints.md: Update copyright year for my changes.

        PR target/43484
        * config/rs6000/rs6000.c (rs6000_split_multireg_move): If r0 is
        used in reg+reg addressing, swap registers.

2010-03-24  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43293
        * target.h (struct gcc_target): Add code_end hook.
        * target-def.h (TARGET_ASM_CODE_END): Define to hook_void_void
        if not yet defined.
        (TARGET_ASM_OUT): Add TARGET_ASM_CODE_END.
        * toplev.c (compile_file): Call targetm.asm_out.code_end
        hook before unwind info/debug info output.
        * config/i386/winnt.c (i386_pe_file_end): Don't call ix86_file_end.
        * config/i386/linux.h (NEED_INDICATE_EXEC_STACK): Don't define.
        (TARGET_ASM_FILE_END): Define to file_end_indicate_exec_stack.
        * config/i386/linux64.h (NEED_INDICATE_EXEC_STACK): Don't define.
        (TARGET_ASM_FILE_END): Define to file_end_indicate_exec_stack.
        * config/i386/i386.c (ix86_file_end): Renamed to...
        (ix86_code_end): ... this.  Make static.  Don't call
        file_end_indicate_exec_stack.  Emit unwind info using
        final_start_function/final_end_function.
        (darwin_x86_file_end): Remove.
        (TARGET_ASM_CODE_END): Define.
        * config/i386/i386.h (TARGET_ASM_FILE_END,
        NEED_INDICATE_EXEC_STACK): Don't define.
        * config/i386/darwin.h (darwin_x86_file_end): Remove prototype.
        (TARGET_ASM_FILE_END): Define to darwin_file_end.
        * config/i386/i386-protos.h (ix86_file_end): Remove prototype.
        * doc/tm.texi (TARGET_ASM_CODE_END): Document.

        PR target/43498
        * config/i386/i386.c (x86_output_mi_thunk): Call final_start_function
        at the beginning and final_end_function at the end.
        * config/s390/s390.c (s390_output_mi_thunk): Likewise.

2010-03-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (i[34567]86-*-*): Handle Solaris 2/x86 TLS support
        and Sun as TLS syntax.
        (TLS_SECTION_ASM_FLAG) [on_solaris && !gas_flag]: Define.
        * configure: Regenerate.
        * config.in: Regenerate.
        * varasm.c (TLS_SECTION_ASM_FLAG): Define default.
        (default_elf_asm_named_section): Use it.
        * config/i386/i386.c (output_pic_addr_const): Lowercase @DTPOFF.
        (i386_output_dwarf_dtprel): Likewise.
        (output_addr_const_extra): Likewise.
        (output_pic_addr_const): Lowercase @GOTTPOFF.
        (output_addr_const_extra): Likewise.
        (output_pic_addr_const): Lowercase @GOTNTPOFF.
        (output_addr_const_extra): Likewise.
        (output_pic_addr_const): Lowercase @INDNTPOFF.
        (output_addr_const_extra): Likewise.
        (output_pic_addr_const): Lowercase @NTPOFF.
        (output_addr_const_extra): Likewise.
        (output_pic_addr_const): Lowercase @TPOFF.
        (output_addr_const_extra): Likewise.
        * config/i386/i386.md (*tls_global_dynamic_32_gnu): Lowercase @TLSGD.
        (*tls_global_dynamic_64): Likewise.
        (*tls_local_dynamic_base_32_gnu): Lowercase @TLSLDM.
        (*tls_local_dynamic_base_64): Lowercase @TLSLD.

        * defaults.h (TLS_COMMON_ASM_OP): Provide default.
        (ASM_OUTPUT_TLS_COMMON): Use it.
        * config/i386/sol2-gas.h (TLS_COMMON_ASM_OP): Undef.

        PR target/38118
        * config.gcc (sparc*-*-solaris2*) [$gas=yes]: Add usegas.h to tm_file.
        * config/sparc/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): Move ...
        * config/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): ... here.
        * config/i386/sol2-10.h (ASM_OUTPUT_ALIGNED_COMMON): Redefine.
        * config/i386/sol2.h (TARGET_SUN_TLS): Redefine.
        (ASM_DECLARE_OBJECT_NAME) [!USE_GAS]: Redefine.

2010-03-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/i386/i386.c (override_options): Don't accept
        -mtls-dialect=sun any longer.
        * config/i386/i386.h (TARGET_SUN_TLS): Define as 0.
        * config/i386/i386.md (*tls_global_dynamic_32_sun): Remove.
        (*tls_local_dynamic_base_32_sun): Likewise.
        * config/i386/sol2.h (TARGET_SUN_TLS): Redefine.

2010-03-24  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43508
        * dwarf2out.c (mem_loc_descriptor): Don't ICE on
        VEC_{MERGE,SELECT,CONCAT,DUPLICATE}.

        PR debug/43479
        * ira.c (adjust_cleared_regs): New function.
        (update_equiv_regs): Adjust cleared_regs in DEBUG_INSNs.

        PR debug/19192
        PR debug/43479
        * cfgexpand.c (gimple_assign_rhs_to_tree): Also set TREE_BLOCK
        from gimple_block.
        * expr.c (expand_expr_real): Restore previous
        curr_insn_source_location and curr_insn_block after
        expand_expr_real_1 call.
        (expand_expr_real_1) <case SSA_NAME>: Call expand_expr_real
        instead of expand_expr_real_1.

2010-03-23  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/43413
        * ira-color.c (setup_allocno_available_regs_num): Count prohibited
        hard regs too.

2010-03-22  James E. Wilson  <wilson@codesourcery.com>

        PR target/43348
        * ia64.md (call_nogp, call_value_nogp, sibcall_nogp, call_gp,
        call_value_gp, sibcall_gp): Use 's' constraint not 'i'.

2010-03-22  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_target_string): Add -mfma.
        Fix a typo in comment.

2010-03-22  Mike Stump  <mikestump@comcast.net>

        PR target/23071
        * config/rs6000/rs6000.c (darwin_rs6000_special_round_type_align):
        Don't overly align based upon packed packed fields.

2010-03-22  Jason Merrill  <jason@redhat.com>

        * c-pretty-print.c (pp_c_specifier_qualifier_list) [VECTOR_TYPE]:
        Use () rather than [], and move before the element type.

2010-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/configfiles.texi (Configuration Files): Removed
        fixinc/Makefile*, intl/Makefile.*.
        * doc/makefile.texi: Fixed markup. Abstract from version
        control system used.
        (Makefile): Removed obsolete gcc/java/parse.y example.
        * doc/sourcebuild.texi: Likewise.
        (Top Level): Added config, gnattools, libdecnumber, libgcc,
        libgomp, libssp.  Removed fastjar.
        (Miscellaneous Docs): Clarify location.
        Added COPYING3, COPYING3.LIB.
        (Front End Directory): Moved Make-lang.in entry to new subsubsection.

2010-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR target/38085
        * config/i386/i386.c (x86_function_profiler)
        [!NO_PROFILE_COUNTERS]: Fix typo.
        * config/i386/gmon-sol2.c (_mcleanup) [__x86_64__]: Use call
        instead of callq.

2010-03-22  Janis Johnson  <janis187@us.ibm.com>
            Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/sourcebuild.texi (Test Directives): Split into six
        subsections, with most of the current text in new subsections
        Directives, Selectors, and Final Actions.
        (Directives): Split list of test directives into multiple
        subsubsections.
        (Selectors): Describe use and syntax of selectors.
        (Effective-Target Keywords): Describe all existing keywords.
        (Add Options): Describe features for dg-add-options.
        (Require Support): Describe variants of dg-require-support.
        (Final Actions): Describe commands to use in dg-final.

2010-03-22  Michael Matz  <matz@suse.de>

        PR middle-end/43475
        * recog.c (validate_replace_rtx_group): Replace also in
        REG_EQUAL and REG_EQUIV notes.

2010-03-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43390
        * tree-vect-stmts.c (get_vectype_for_scalar_type): Make
        sure vector extracts are type correct.

2010-03-22  Richard Guenther  <rguenther@suse.de>

        PR middle-end/40106
        * builtins.c (expand_builtin_pow): Expand pow (x, 1.5) as
        x * sqrt (x) even when optimizing for size if the target
        has native support for sqrt.

2010-03-22  Jakub Jelinek  <jakub@redhat.com>

        * varasm.c (make_decl_rtl_for_debug): Also clear
        flag_mudflap for the duration of make_decl_rtl call.

        PR debug/43443
        * var-tracking.c (add_cselib_value_chains): Remove ASM_OPERANDS
        locs from preserved VALUEs.

2010-03-21  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/42718
        * pa.md (movmemsi): Set align to one if zero.
        (movmemdi): Likewise.

2010-03-21  Richard Earnshaw  <rearnsha@arm.com>

        PR target/42321
        * arm.c (arm_output_epilogue): Correctly match VFP pop instructions
        with their corresponding prologue pushes.

2010-03-20  Andrew Pinski  <pinskia@gmail.com>

        PR target/43156
        * config/spu/spu.c (spu_expand_prologue): Don't emit NOTE_INSN_DELETED
        at the begining or end.
        (spu_expand_epilogue): Likewise.

2010-03-20  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/43438
        * combine.c (make_extraction): Properly zero-/sign-extend an
        extraction of the low part of a CONST_INT.  Also handle
        CONST_DOUBLE.

2010-03-19  Mike Stump  <mikestump@comcast.net>

        * config/i386/darwin.h (SUBTARGET32_DEFAULT_CPU): Add.
        * config/i386/i386.c (SUBTARGET32_DEFAULT_CPU): Add.
        (override_options): Use SUBTARGET32_DEFAULT_CPU.

2010-03-19  Andrew Pinski  <andrew_pinski@caviumnetworks.com>

        PR c/43211
        * c-decl.c (grokparms): Set arg_types to NULL_TREE if there was
        an error.

2010-03-19  Bernd Schmidt  <bernd.schmidt@codesourcery.com>

        PR rtl-optimization/42258
        * ira-lives.c (check_and_make_def_conflict): Ignore conflict for a
        use that may match DEF.

        PR target/40697
        * optabs.c (avoid_expensive_constant): Use rtx_cost to find out
        the cost of loading the constant rather than assuming
        COSTS_N_INSNS (1).
        * config/arm/arm.c (thumb1_rtx_costs) <case CONST_INT>: If the
        outer code is AND, do the same tests as the andsi3 expander and
        return COSTS_N_INSNS (1) if and is cheap.

        * optabs.c (avoid_expensive_constant): Fix formatting.

2010-03-19  Michael Matz  <matz@suse.de>

        PR c++/43116
        * attribs.c (decl_attributes): When rebuilding a function pointer
        type use the same qualifiers as the original pointer type.

2010-03-19  Martin Jambor  <mjambor@suse.cz>

        * doc/gimple.texi (Logical Operators): Describe is_gimple_ip_invariant
        and is_gimple_ip_invariant_address.

2010-03-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        Revert
        2009-10-01  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/arm/arm.c (arm_override_options): Turn off
        flag_dwarf2_cfi_asm for AAPCS variants.

2010-03-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/43399
        * config/arm/arm.c (emit_multi_reg_push): Update comments.
        Use PRE_MODIFY instead of PRE_DEC.
        (emit_sfm): Use PRE_MODIFY instead of PRE_DEC.
        (vfp_emit_fstmd): Likewise.

2010-03-19  Michael Matz  <matz@suse.de>

        PR target/43305
        * builtins.c (expand_builtin_interclass_mathfn,
        expand_builtin_signbit): Use maybe_emit_unop_insn, emit libcalls
        if that fails.

2010-03-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43415
        * tree-ssa-pre.c (phi_translate): Split out worker to ...
        (phi_translate_1): ... this.
        (phi_translate): Move all caching here.  Cache all NARY
        and REFERENCE translations.

2010-03-19  David S. Miller  <davem@davemloft.net>

        With help from Eric Botcazou.
        * config/sparc/sparc.c: Include dwarf2out.h.
        (emit_pic_helper): Delete.
        (pic_helper_symbol_name): Delete.
        (pic_helper_emitted_p): Delete.
        (pic_helper_needed): New.
        (USE_HIDDEN_LINKONCE): Define to '1' if HAVE_GAS_HIDDEN else '0'.
        (get_pc_thunk_name): New.
        (load_pic_register): Remove 'delay_pic_helper' arg.  Use
        get_thunk_pc_name and ggc_strdup to generate PIC thunk symbol.
        Set pic_helper_needed to true.  Don't call emit_pic_helper.
        (sparc_expand_prologue): Update load_pic_register call.
        (sparc_output_mi_thunk): Likewise.
        (sparc_file_end): Emit a hidden comdat symbol for the PIC
        thunk if possible.  Output CFI information as needed.

2010-03-18  Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
            Jack Howarth <howarth@bromo.med.uc.edu>

        PR target/36399
        * config/i386/i386.h: Fix ABI on darwin x86-32.

2010-03-18  Aldy Hernandez  <aldyh@redhat.com>

        * tree.h: Declare make_decl_rtl_for_debug.
        * varasm.c (make_decl_rtl_for_debug): New.
        * dwarf2out.c (rtl_for_decl_location): Call it.
        * cfgexpand.c (expand_debug_expr): Call it.

2010-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/43399
        * var-tracking.c (adjust_mems) <case POST_MODIFY>: Allow BLKmode
        mem_mode.

        PR bootstrap/43403
        * var-tracking.c (vt_init_cfa_base): Do nothing if
        cfa_base_rtx would be hard_frame_pointer_rtx or non-fixed register.

2010-03-18  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42873
        * var-tracking.c (canonicalize_vars_star): New.
        (dataflow_post_merge_adjust): Use it.

2010-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43058
        * var-tracking.c (non_suitable_const): New function.
        (add_uses): For DEBUG_INSNs with constants, don't record any
        value, instead just the constant value itself.
        (compute_bb_dataflow) <case MO_VAL_LOC>: If PAT_VAR_LOCATION_LOC
        is not VAR_LOC_UNKNOWN_P, set var to the constant.
        (emit_notes_in_bb): Likewise.
        (emit_note_insn_var_location): For onepart variables if
        cur_loc is a VOIDmode constant, use DECL_MODE.

2010-03-18  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/42450
        * cgraph.h (cgraph_redirect_edge_call_stmt_to_callee): Declare.
        * cgraphunit.c (cgraph_materialize_all_clones): Update calls in
        all non-clones.  Moved call redirection...
        (cgraph_redirect_edge_call_stmt_to_callee): ...to this new function.
        (cgraph_materialize_all_clones): Dispose of all
        combined_args_to_skip bitmaps.
        (verify_cgraph_node): Do not check for edges pointing to wrong
        nodes in inline clones.
        * tree-inline.c (copy_bb): Call
        cgraph_redirect_edge_call_stmt_to_callee.
        * ipa.c (cgraph_remove_unreachable_nodes): Call
        cgraph_node_remove_callees even when there are used clones.

2010-03-18  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/libgcc-glibc.ver: Make GCC_4.5.0 inherit GCC_4.4.0.

2010-03-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/43383
        * config/i386/libgcc-glibc.ver: Add __extendxftf2 to GCC_4.5.0
        for 32bit.

2010-03-18  Michael Matz  <matz@suse.de>

        PR middle-end/43419
        * builtins.c (expand_builtin_pow): Don't transform pow(x, 0.5)
        into sqrt(x) if we need to preserve signed zeros.

2010-03-18  Steven Bosscher  <steven@gcc.gnu.org>
            Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/43360
        * loop-invariant.c (move_invariant_reg): Remove the REG_EQUAL
        note if we don't know its invariant status.

2010-03-18  Michael Matz  <matz@suse.de>

        PR tree-optimization/43402
        * tree-cfgcleanup.c (cleanup_control_expr_graph): Don't follow
        PHI chains of ssa names registered for update.

2010-03-17  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/42427
        * config/rs6000/rs6000.c (rs6000_split_multireg_move): Add support for
        non-offsettable and pre_modify update addressing.
        * config/rs6000/dfp.md (*movdd_hardfloat32): Make the "0", "1"
        and "2" alternatives "#".
        (*movdd_softfloat32): Make all alternatives "#";
        * config/rs6000/rs6000.md (DIFD): New define_mode_iterator.
        (*movdf_hardfloat32): Make the "0", "1" and "2" alternatives "#".
        (*movdf_softfloat32): Make all alternatives "#";
        (movdi): Use the new DIFD mode iterator to create a common splitter
        for movdi, movdf and movdd patterns.

2010-03-18  Shujing Zhao  <pearly.zhao@oracle.com>

        * common.opt (dumpdir): Remove redundant tab.

2010-03-17  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/43347
        * tree-sra.c (create_access_replacement): Set TREE_NO_WARNING when the
        original base is DECL_ARTIFICIAL or DECL_IGNORED_P.

2010-03-17  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR rtl-optimization/42216
        * regrename.c (create_new_chain): New function, broken out from...
        (scan_rtx_reg): ... here.  Call it.  Handle the case where we are
        appending a use to an empty chain.
        (build_def_use): Remove previous changes that convert OP_INOUT to
        OP_OUT operands; instead detect the case where an OP_INOUT operand
        uses a previously untracked register and create an empty chain for it.

2010-03-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/extend.texi (Function Attributes): Rewrite unfinished
        sentence in ms_abi documentation.

2010-03-17  Alan Modra  <amodra@gmail.com>

        * config/rs6000/linux64.opt (mprofile-kernel): Use profile_kernel var.
        * config/rs6000/linux64.h (TARGET_PROFILE_KERNEL): Define.
        (SUBSUBTARGET_OVERRIDE_OPTIONS): Don't use SET_PROFILE_KERNEL.
        * config/rs6000/rs6000.c (SET_PROFILE_KERNEL): Don't define.

2010-03-16  Richard Henderson  <rth@redhat.com>

        PR middle-end/43365
        * tree-eh.c (replace_goto_queue): Also replace in the eh_seq.
        (lower_try_finally): Save and restore eh_seq around the expansion
        of the try-finally.

2010-03-16  Aldy Hernandez  <aldyh@redhat.com>

        * graphite-sese-to-poly.c (split_reduction_stmt): Skip debug
        statements before splitting block.

2010-03-16  Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/sourcebuild.texi (Testsuites): Fix markup.
        Use pathnames relative to gcc/testsuite.
        (Test Directives): Move description of how timeout is determined.
        (Ada Tests): Favor gnat.exp over ada/acats/tests/gcc.
        (C Tests): Correct gcc.misc-tests directory.
        Framework tests now live in gcc.test-framework.

2010-03-16  Richard Guenther  <rguenther@suse.de>

        PR middle-end/43379
        * tree-cfg.c (gimple_merge_blocks): When propagating virtual PHI
        operands make sure to merge SSA_NAME_OCCURS_IN_ABNORMAL_PHI properly.

2010-03-16  Aldy Hernandez  <aldyh@redhat.com>
            Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/42917
        * lambda-code.c (remove_iv): Skip debug statements.
        (lambda_loopnest_to_gcc_loopnest): Likewise.
        (not_interesting_stmt): Debug statements are not interesting.

2010-03-16  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43051
        PR debug/43092
        * cselib.c (cselib_preserve_constants,
        cfa_base_preserved_val): New static variables.
        (preserve_only_constants): New function.
        (cselib_reset_table): If cfa_base_preserved_val is non-NULL, don't
        clear its REG_VALUES.  If cselib_preserve_constants, don't
        empty the whole hash table, but preserve there VALUEs with constants,
        cfa_base_preserved_val and cfa_base_preserved_val plus constant.
        (cselib_preserve_cfa_base_value): New function.
        (cselib_invalidate_regno): Don't invalidate cfa_base_preserved_val.
        (cselib_init): Change argument to int bitfield.  Set
        cselib_preserve_constants to whether CSELIB_PRESERVE_CONSTANTS
        is in it.
        (cselib_finish): Clear cselib_preserve_constants and
        cfa_base_preserved_val.
        * cselib.h (enum cselib_record_what): New enum.
        (cselib_init): Change argument to int.
        (cselib_preserve_cfa_base_value): New prototype.
        * postreload.c (reload_cse_regs_1): Adjust cselib_init caller.
        * dse.c (dse_step1): Likewise.
        * cfgcleanup.c (thread_jump): Likewise.
        * sched-deps.c (sched_analyze): Likewise.
        * gcse.c (local_cprop_pass): Likewise.
        * simplify-rtx.c (simplify_replace_fn_rtx): Add argument to callback.
        If FN is non-NULL, call the callback always and whenever it returns
        non-NULL just return that.  Only do rtx_equal_p if FN is NULL.
        * rtl.h (simplify_replace_fn_rtx): Add argument to callback.
        * combine.c (propagate_for_debug_subst): Add old_rtx argument,
        compare from with old_rtx and if it isn't rtx_equal_p, return NULL.
        * Makefile.in (var-tracking.o): Depend on $(RECOG_H).
        * var-tracking.c: Include recog.h.
        (bb_stack_adjust_offset): Remove.
        (vt_stack_adjustments): Don't call it, instead just gather the
        adjustments using insn_stack_adjust_offset_pre_post on each bb insn.
        (adjust_stack_reference): Remove.
        (compute_cfa_pointer): New function.
        (hard_frame_pointer_adjustment, cfa_base_rtx): New static variables.
        (struct adjust_mem_data): New type.
        (adjust_mems, adjust_mem_uses, adjust_mem_stores, adjust_insn): New
        functions.
        (get_address_mode): New function.
        (replace_expr_with_values): Use it.
        (use_type): Don't do cselib_lookup for VAR_LOC_UNKNOWN_P.
        Use get_address_mode.  For cfa_base_rtx return MO_CLOBBER.
        (adjust_sets): Remove.
        (add_uses): Don't add extra MO_VAL_USE for cfa_base_rtx plus constant.
        Use get_address_mode.
        (get_adjusted_src): Remove.
        (add_stores): Don't call it.  Never reuse expr SET.  Don't add extra
        MO_VAL_USE for cfa_base_rtx plus constant.  Use get_address_mode.
        (add_with_sets): Don't call adjust_sets.
        (fp_setter, vt_init_cfa_base): New functions.
        (vt_initialize): Change return type to bool.  Move most of pool etc.
        initialization to the beginning of the function from end.  Pass
        CSELIB_RECORD_MEMORY | CSELIB_PRESERVE_CONSTANTS to cselib_init.
        If !frame_pointer_needed, call vt_stack_adjustment before mos
        vector is filled, call vt_init_cfa_base if argp/framep has been
        eliminated to sp.  If frame_pointer_needed and argp/framep has
        been eliminated to hard frame pointer, set
        hard_frame_pointer_adjustment and call vt_init_cfa_base after
        encountering fp setter in the prologue.  For MO_ADJUST, call
        log_op_type before pusing the op into mos vector, not afterwards.
        Call adjust_insn before cselib_process_insn/add_with_sets,
        call cancel_changes (0) afterwards.
        (variable_tracking_main_1): Adjust for vt_initialize calling
        vt_stack_adjustments and returning whether it succeeded or not.

2010-03-15  Aldy Hernandez  <aldyh@redhat.com>

        * graphite-sese-to-poly.c (rewrite_cross_bb_scalar_deps): Skip
        debug statements.

2010-03-15  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (dwarf2out_frame_debug): Don't assert drap_reg
        has been set.
        (based_loc_descr): Use DW_OP_fbreg for vdrap_reg even when
        drap_reg has not been set.

2010-03-15  Michael Matz  <matz@suse.de>

        PR middle-end/43300
        * tree-outof-ssa.c (emit_partition_copy): New argument sizeexp,
        use it to expand block copies.
        (insert_partition_copy_on_edge, insert_rtx_to_part_on_edge,
        insert_part_to_rtx_on_edge): Adjust callers of emit_partition_copy.
        (insert_value_copy_on_edge): Use store_expr for BLKmode values.

2010-03-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43367
        * tree-cfg.c (gimple_can_merge_blocks_p): Simplify PHI
        elimination check.

2010-03-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43317
        * ipa-struct-reorg.c (create_new_general_access): Update stmt.

2010-03-15  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/43141
        * tree-sra.c (create_abstract_origin): New function.
        (modify_function): Call create_abstract_origin.

2010-03-15  Chris Demetriou  <cgd@google.com>

        * Makefile.in (stmp-int-hdrs): Don't chmod include/stdint.h if it
        wasn't copied.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43354
        * graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Do not
        call insert_out_of_ssa_copy for default definitions.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (my_long_long): Defined.
        (gcc_type_for_cloog_iv): Use it instead of long_long_integer_type_node.
        * graphite-sese-to-poly.c (my_long_long): Defined.
        (scop_ivs_can_be_represented): Use it.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/invoke.texi: Fix documentation of graphite-max-nb-scop-params,
        graphite-max-bbs-per-function, and loop-block-tile-size.
        * params.def (PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS): Replace "maximal"
        with "maximum".
        (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Same.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (gcc_type_for_iv_of_clast_loop): Remove
        forward declaration.
        * graphite-sese-to-poly.c (reduction_phi_p): Remove FIXME comment.
        (add_upper_bounds_from_estimated_nit): New.
        (build_loop_iteration_domains): Use it.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/invoke.texi (PARAM_LOOP_BLOCK_TILE_SIZE): Document.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43306
        * tree-chrec.c (evolution_function_right_is_integer_cst): CHREC_RIGHT
        should be an INTEGER_CST.  Also handle CASE_CONVERT.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_initialize): To bound the number of bbs per
        function, use PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION.
        * params.def (PARAM_GRAPHITE_MAX_BBS_PER_FUNCTION): Declared.
        * doc/invoke.texi: Document it.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_poly_scop): Do not return bool.
        * graphite-sese-to-poly.h (build_poly_scop): Same.

2010-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_poly_scop): Limit scops following
        the number of parameters in the scop.  Use as an upper bound
        PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS.
        * params.def (PARAM_GRAPHITE_MAX_NB_SCOP_PARAMS): Declared.
        * doc/invoke.texi: Document it.

2010-03-13  Jerry Quinn  <jlquinn@optonline.net>

        * Makefile.in (TEXI_GCCINT_FILES): Remove c-tree.texi.
        * doc/c-tree.texi: Remove.
        * doc/generic.texi: Merge c-tree.texi here.
        * doc/gccint.texi (Trees): Remove menu entry.
        (c-tree.texi): Remove @include.
        * doc/rtl.texi (Reading RTL): Update pxref from Trees to GENERIC.
        * doc/languages.texi (Reading RTL): Ditto.

2010-03-12  Steve Ellcey  <sje@cup.hp.com>

        PR target/42869
        * config/ia64/sync.md (sync_compare_and_swap): Move memory fence.

2010-03-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR middle-end/42431
        * gcc/config/rs6000/rs6000.c (rs6000_emit_move): Delete band-aid
        code added to work around reload clobbering CONST insns.

2010-03-12  Jakub Jelinek  <jakub@redhat.com>

        * cselib.c (LONG_TERM_PRESERVED_VALUE_P): Remove.
        (cselib_preserve_definitely, cselib_clear_preserve): Remove.
        (cselib_preserve_only_values): Remove retain argument, don't
        traverse hash table with cselib_{preserve_definitely,clear_preserve}.
        * cselib.h (cselib_preserve_only_values): Remove retain argument.
        * var-tracking.c (micro_operation): Move insn field before union.
        Add DEF_VEC_O and DEF_VEC_ALLOC_O for this type.
        (struct variable_tracking_info_def): Remove n_mos field, change
        mos into a vector of micro_operations.
        (count_uses, count_uses_1, count_stores, count_with_sets): Remove.
        (bb_stack_adjust_offset, log_op_type, add_uses, add_stores,
        compute_bb_dataflow, emit_notes_in_bb): Adjust for VTI (bb)->mos
        changing into a vector.
        (add_with_sets): Likewise.  Ensure MO_VAL_USE uops from add_stores
        come before all other uops generated by add_stores.
        (vt_add_function_parameters): Adjust for cselib_preserve_only_values
        argument removal.
        (vt_initialize): Likewise.  Adjust for VTI (bb)->mos changing into
        a vector.  Run just one pass over the bbs instead of separate counting
        and computation phase.
        (vt_finalize): Free VTI (bb)->mos vector instead of array.

        PR debug/43329
        * tree-inline.c (remap_decls): Put old_var rather than origin_var
        into *nonlocalized_list vector.
        * dwarf2out.c (gen_formal_parameter_die): Call decl_ultimate_origin
        even if origin is non-NULL.
        (gen_variable_die): Likewise.
        (process_scope_var): Don't change origin.
        (gen_decl_die): Likewise.
        * tree-cfgcleanup.c (remove_forwarder_block): Check single_pred_p
        before adding new edges instead of after it, fix moving over
        debug stmts.

2010-03-11  David S. Miller  <davem@davemloft.net>

        * configure.ac (gcc_cv_as_cfi_advance_working): Skip a multiple
        of four.
        * configure: Rebuild.

2010-03-11  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/43257
        * tree.c (assign_assembler_name_if_neeeded): New function.
        (free_lang_data_in_cgraph): Assembler name assignment moved to the
        above new function.
        * tree.h (assign_assembler_name_if_neeeded): Declare.
        * cgraphunit.c (cgraph_analyze_function): Create an assembler name for
        the function if needed.

2010-03-11  Chris Demetriou  <cgd@google.com>

        * Makefile.in (stmp-int-hdrs): Make include/unwind.h,
        include/stdint-gcc.h, and include/stdint.h world-readable.

2010-03-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43255
        * tree-vrp.c (process_assert_insertions_for): Do not insert
        asserts for trivial conditions.

2010-03-11  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR tree-optimization/43280
        * tree-ssa-math-opts.c (find_bswap_1): Modify symbolic number
        generation.  Move calculation of size out of the if branch.
        (find_bswap): Modify compare number generation.

2010-03-11  Richard Guenther  <rguenther@suse.de>

        PR lto/43200
        * lto-streamer-in.c (maybe_fixup_decls): Simplify.
        (input_gimple_stmt): Fixup handled component types during
        operand read.  Also fix up decls in ADDR_EXPRs.

2010-03-10  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sol2-bi.h (CC1_SPEC): Default to -mcpu=v9 for -m32.
        * config/sparc/t-sol2-64 (MULTILIB_DIRNAMES): Use sparcv8plus.

2010-03-10  Jan Hubicka  <jh@suse.cz>

        PR c/43288
        * ipa.c (function_and_variable_visibility) Normalize COMMON bits.
        * varasm.c (get_variable_section): Don't do that here...
        (make_decl_rtl): ... and here.
        (do_assemble_alias): Produce decl RTL.
        (assemble_alias): Likewise.

2010-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43290
        * reg-notes.def (REG_CFA_SET_VDRAP): New note.
        * dwarf2out.c (dwarf2out_frame_debug_expr): Remove rule 20 - setting
        of fde->vdrap_reg.
        (dwarf2out_frame_debug): Handle REG_CFA_SET_VDRAP note.
        (based_loc_descr): Only express drap or vdrap regno based expressions
        using DW_OP_fbreg when not optimizing.
        * config/i386/i386.c (ix86_get_drap_rtx): When not optimizing,
        make the vDRAP = DRAP assignment RTX_FRAME_RELATED_P and add
        REG_CFA_SET_VDRAP note.

2010-03-10  Alexander Monakov  <amonakov@ispras.ru>

        PR tree-optimization/43236
        * tree-loop-distribution.c (generate_memset_zero): Fix off-by-one
        error in calculation of base address in reverse iteration case.
        (generate_builtin): Take number of latch executions if the statement
        is in the latch.

2010-03-10  Andrey Belevantsev  <abel@ispras.ru>

        PR middle-end/42859
        * tree-eh.c: Include pointer-set.h.
        (lower_eh_dispatch): Filter out duplicate case labels and
        remove the unneeded edge when the label is unused.  Return
        true when some edges are removed.
        (execute_lower_eh_dispatch): When any lowering resulted in
        removing an edge, also delete unreachable blocks.

2010-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/43287
        * config/rs6000/rs6000.c (rs6000_delegitimize_address): Handle
        UNSPEC_MACHOPIC_OFFSET.

2010-03-09  Andreas Schwab  <schwab@linux-m68k.org>

        PR target/43294
        * config/m68k/m68k.c (TARGET_DELEGITIMIZE_ADDRESS): Define.
        (m68k_delegitimize_address): New function.

2010-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43299
        * dwarf2out.c (const_ok_for_output_1): Return 1 for UNSPECs.

        PR debug/43299
        * var-tracking.c (adjust_sets): New function.
        (count_with_sets, add_with_sets): Use it.
        (get_adjusted_src): New inline function.
        (add_stores): Use it.

        PR debug/43304
        * var-tracking.c (vt_expand_loc_callback) <case SUBREG>: If dummy,
        call cselib_dummy_expand_value_rtx_cb instead of
        cselib_expand_value_rtx_cb.

        PR debug/43293
        * config/i386/t-i386 (i386.o): Depend on debug.h and dwarf2out.h.
        * config/i386/i386.c: Include debug.h and dwarf2out.h.
        (ix86_file_end): If dwarf2out_do_cfi_asm (), emit .cfi_startproc
        and .cfi_endproc around the pic thunks.
        (output_set_got): For TARGET_DEEP_BRANCH_PREDICTION pic, ensure
        all queued unwind info register saves are saved before the call.
        For !TARGET_DEEP_BRANCH_PREDICTION pic, ensure the call is
        considered as sp-=4 for unwind info and the pop as sp+=4 which
        also clobbers dest, but doesn't actually restore it.

        PR debug/43290
        * config/i386/i386.c (ix86_get_drap_rtx): Don't set
        RTX_FRAME_RELATED_P.

2010-03-09  Jie Zhang  <jie@codesourcery.com>

        * config/arm/arm.md (thumb_mulsi3_v6): Remove trailing
        whitespaces in output template.

2010-03-09  Jie Zhang  <jie@codesourcery.com>

        * ira-lives.c (check_and_make_def_use_conflict): Don't fall
        out array boundary.

2010-03-08  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in (check_gcc_parallelize): Run dg-torture.exp and
        builtins.exp in a separate job.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (add_param_constraints): Use
        lower_bound_in_type and upper_bound_in_type.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (add_param_constraints): Use sizetype
        instead of unsigned_type_node.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>
            Reza Yazdani  <reza.yazdani@amd.com>

        PR middle-end/43065
        * graphite-sese-to-poly.c (add_param_constraints): Insert bounds
        on pointer type parameters.

2010-03-08  Tobias Grosser  <grosser@fim.uni-passau.de>

        PR middle-end/42644
        PR middle-end/42130
        * graphite-clast-to-gimple.c (clast_to_gcc_expression): Also
        handle conversions from pointer to integers.
        (gcc_type_for_cloog_iv): Choose the smalles signed integer as an
        induction variable, to be able to work with code generated by CLooG.
        * graphite-sese-to-poly.c (scop_ivs_can_be_represented): New.
        (build_poly_scop): Bail out if we cannot codegen a loop.

2010-03-08  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-clast-to-gimple.c (translate_clast): Do not short-cut
        code generation with gloog_error.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_ssa_name): Add new argument for type.
        Call fold_convert on all the returned values.
        (expand_scalar_variables_expr): Pass to
        expand_scalar_variables_ssa_name the type of the resulting expression.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (ppl_min_for_le_polyhedron): Renamed
        ppl_min_for_le_pointset.
        Use ppl_Pointset_Powerset_C_Polyhedron_minimize.
        * graphite-ppl.h (ppl_min_for_le_polyhedron): Update declaration.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (map_into_dep_poly): Removed.
        (dependence_polyhedron_1): Use combine_context_id_scat.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h (struct poly_scattering): Add layout documentation.
        (struct poly_bb): Same.
        (combine_context_id_scat): New.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/42326
        * sese.c (name_defined_in_loop_p): Return false for default
        definitions.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (find_cloog_iv_in_expr): Simplify
        and clean up the logic.

2010-03-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (add_param_constraints): Enabled: remove
        early return.

2010-03-08  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (remove_cselib_value_chains): Define only for
        ENABLE_CHECKING.
        (dataflow_set_preserve_mem_locs, dataflow_set_remove_mem_locs,
        delete_slot_part, emit_notes_for_differences_1): Don't call
        remove_cselib_value_chains here.
        (set_slot_part, emit_notes_for_differences_2): Don't call
        add_cselib_value_chains here.
        (preserved_values): New vector.
        (preserve_value): New function.
        (add_uses, add_stores, vt_add_function_parameters): Use it
        instead of cselib_preserve_value.
        (changed_values_stack): New vector.
        (check_changed_vars_0): New function.
        (check_changed_vars_1, check_changed_vars_2): Use it.
        (emit_notes_for_changes): Call set_dv_changed (*, false) on all
        changed_values_stack VALUEs.
        (vt_emit_notes): For all preserved_values call
        add_cselib_value_chains.  If ENABLE_CHECKING call
        remove_cselib_value_chains before verifying value_chains is empty.
        Initialize and free changed_values_stack.
        (vt_initialize): Initialize preserved_values.
        (vt_finalize): Free preserved_values.

2010-03-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43269
        * tree-ssa-dse.c (dse_possible_dead_store_p): Fix post-dom
        region detection.

2010-03-08  Martin Jambor  <mjambor@suse.cz>

        * ipa-prop.h (struct ipa_param_descriptor): Removed the called field.
        (ipa_is_param_called): Removed.
        * ipa-prop.c (ipa_note_param_call): Do not set the called flag.
        (ipa_print_node_params): Do not print the called flag.
        (ipa_write_node_info): Do not stream the called flag.
        (ipa_read_node_info): Likewise.

2010-03-07  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43176
        * Makefile.in (var-tracking.o): Depend on pointer-set.h.
        * cselib.c (struct expand_value_data): Add dummy field.
        (cselib_expand_value_rtx, cselib_expand_value_rtx_cb): Initialize
        dummy to false.
        (cselib_dummy_expand_value_rtx_cb): New function.
        (cselib_expand_value_rtx_1): If evd->dummy is true, don't allocate
        any rtl.
        * cselib.h (cselib_dummy_expand_value_rtx_cb): New prototype.
        * var-tracking.c: Include pointer-set.h.
        (variable): Change n_var_parts to char from int.  Add
        cur_loc_changed and in_changed_variables fields.
        (variable_canonicalize): Remove.
        (shared_var_p): New inline function.
        (unshare_variable): Maintain cur_loc_changed and
        in_changed_variables fields.  If var was in changed_variables,
        replace it there with new_var.  Just copy cur_loc instead of
        resetting it to something else.
        (variable_union): Don't recompute cur_loc.  Use shared_var_p.
        (dataflow_set_union): Don't call variable_canonicalize.
        (loc_cmp): If both x and y are DEBUG_EXPRs, compare uids
        of their DEBUG_EXPR_TREE_DECLs.
        (canonicalize_loc_order_check): Verify that cur_loc is NULL
        and in_changed_variables and cur_loc_changed is false.
        (variable_merge_over_cur): Clear cur_loc, in_changed_variables
        and cur_loc_changed.  Don't update cur_loc here.
        (variable_merge_over_src): Don't call variable_canonicalize.
        (dataflow_set_preserve_mem_locs): Use shared_var_p.  When
        removing loc that is equal to cur_loc, clear cur_loc,
        set cur_loc_changed and ensure variable_was_changed is called.
        (dataflow_set_remove_mem_locs): Use shared_var_p.  Only
        compare pointers in cur_loc check, if it is equal to loc,
        clear cur_loc and set cur_loc_changed.  Don't recompute cur_loc here.
        (variable_different_p): Remove compare_current_location argument,
        don't compare cur_loc.
        (dataflow_set_different_1): Adjust variable_different_p caller.
        (variable_was_changed): If dv had some var in changed_variables
        already, reset in_changed_variables flag for it and propagate
        cur_loc_changed over to the new variable.  On empty var
        always set cur_loc_changed.  Set in_changed_variables on whatever
        var is added to changed_variables.
        (set_slot_part): Clear cur_loc_changed and in_changed_variables.
        Use shared_var_p.  When removing loc that is equal to cur_loc,
        clear cur_loc and set cur_loc_changed.  If cur_loc is NULL at the
        end, don't set it to something else, just call variable_was_changed.
        (delete_slot_part): Use shared_var_p.  When cur_loc equals to
        loc being removed, clear cur_loc and set cur_loc_changed.
        Set cur_loc_changed if all locations have been removed.
        (struct expand_loc_callback_data): New type.
        (vt_expand_loc_callback): Add dummy mode in which no rtxes are
        allocated.  Always create SUBREGs if simplify_subreg failed.
        Prefer to use cur_loc, when that fails and still in
        changed_variables (and seen first time) recompute it.  Set
        cur_loc_changed of variables which had to change cur_loc and
        compute elcd->cur_loc_changed if any of the subexpressions used
        had to change cur_loc.
        (vt_expand_loc): Adjust to pass arguments in
        expand_loc_callback_data structure.
        (vt_expand_loc_dummy): New function.
        (emitted_notes): New variable.
        (emit_note_insn_var_location): For VALUEs and DEBUG_EXPR_DECLs
        that weren't used for any other decl in current
        emit_notes_for_changes call call vt_expand_loc_dummy to update
        cur_loc.  For -fno-var-tracking-assignments, set cur_loc to
        first loc_chain location if NULL before.  Always use just
        cur_loc instead of first loc_chain location.  When cur_loc_changed
        is false, when not --enable-checking=rtl just don't emit any note.
        When rtl checking, compute the note and assert it is the same
        as previous note.  Clear cur_loc_changed and in_changed_variables
        at the end before removing from changed_variables.
        (check_changed_vars_3): New function.
        (emit_notes_for_changes): Traverse changed_vars to call
        check_changed_vars_3 on each changed var.
        (emit_notes_for_differences_1): Clear cur_loc_changed and
        in_changed_variables.  Recompute cur_loc of new_var.
        (emit_notes_for_differences_2): Clear cur_loc if new variable appears.
        (vt_emit_notes): Initialize and destroy emitted_notes.

2010-03-07  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR rtl-optimization/42220
        * regrename.c (scan_rtx) <case STRICT_LOW_PART, ZERO_EXTRACT>:
        Use verify_reg_tracked to determine if we should use OP_OUT rather
        than OP_INOUT.
        (build_def_use): If we see an in-out operand for a register that we
        know nothing about, treat is an output if possible, fail the block if
        not.

2010-03-06  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42897
        * gimple-iterator.c (gsi_remove): Propagate only PHI DEFs removed
        permanently.

2010-03-06  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42897
        * tree-vect-loop.c (vect_transform_loop): Kill out-of-loop debug
        uses of relevant DEFs that are dead outside the loop too.

2010-03-06  Alexandre Oliva <aoliva@redhat.com>

        * var-tracking.c (dataflow_set_merge): Swap src and src2.
        Reverted:
        2010-01-13  Jakub Jelinek  <jakub@redhat.com>
        PR debug/41371
        * var-tracking.c (values_to_unmark): New variable.
        (find_loc_in_1pdv): Clear VALUE_RECURSED_INTO of values in
        values_to_unmark vector.  Moved body to...
        (find_loc_in_1pdv_1): ... this.  Don't clear VALUE_RECURSED_INTO,
        instead queue it into values_to_unmark vector.
        (vt_find_locations): Free values_to_unmark vector.

2010-03-05  Eric Botcazou  <ebotcazou@adacore.com>

        * Makefile.in (PLUGINCC, PLUGINCFLAGS): New variables.
        (site.exp): Export them when plugins are enabled.

2010-03-05  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/42326
        * tree-chrec.c (chrec_fold_plus_1): Do not handle convert expressions
        that contain scevs.
        (chrec_fold_multiply): Same.

2010-03-04  Andrew Pinski  <andrew_pinski@caviumnetworks.com>

        PR c/43248
        * c-decl.c (build_compound_literal): Return early if init is
        an error_mark_node.

2010-03-04  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/43164
        PR tree-optimization/43191
        * tree-sra.c (type_consists_of_records_p): Reject records with
        zero-size bit-fields at the end.

2010-03-04  Mike Stump  <mikestump@comcast.net>

        * Makefile.in (TAGS): Remove *.y.

2010-03-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40761
        * tree-ssa-pre.c (compute_antic): Walk reverse postorder
        in reverse order.
        (my_rev_post_order_compute): New function.
        (init_pre): Call it.

2010-03-04  Changpeng Fang  <changpeng.fang@amd.com>

        PR middle-end/43209
        * tree-ssa-loop-ivopts.c (determine_use_iv_cost_condition): Do not
        decrease the cost of an IV candidate when the cost is infinite.

2010-03-04  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/extend.texi (Vector Extensions, X86 Built-in Functions):
        Use '3DNow!' for the extension of that name, ensure normal space
        after the string.
        * doc/invoke.texi (i386 and x86-64 Options): Likewise.

2010-03-03  Jeff Law  <law@redhat.com>

        * PR middle-end/32693
        * expmed.c (store_bit_field_1): Use gen_lowpart_SUBREG rather
        than gen_rtx_SUBREG.
        (extract_bit_field_1): Likewise.

2010-03-03  Janis Johnson  <janis187@us.ibm.com>

        * doc/sourcebuild.texi (Test directives): Document that arguments
        include-opts and exclude-opts are now optional for dg-skip-if,
        dg-xfail-if, dg-xfail-run-if, and dg-shouldfail.

2010-03-03  Jason Merrill  <jason@redhat.com>

        PR c++/12909
        * cgraph.h (varpool_node): Add extra_name field.
        * varpool.c (varpool_extra_name_alias): New.
        (varpool_assemble_decl): Emit extra name aliases.
        (varpool_mark_needed_node): Look past an extra name alias.
        * lto-streamer.h (LTO_tags): Add LTO_var_decl_alias.
        * lto-streamer-in.c (lto_input_tree): Read it.
        * lto-streamer-out.c (output_unreferenced_globals): Write it.

2010-03-03  Eric Botcazou  <ebotcazou@adacore.com>

        * config.gcc (sparc64-*-solaris2*, sparc-*-solaris2*): Merge into...
        (sparc*-*-solaris2*): ...this.

2010-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43229
        * cfgexpand.c (expand_debug_expr): Handle DOT_PROD_EXPR,
        WIDEN_MULT_EXPR and WIDEN_SUM_EXPR.  Return NULL without
        ICE for vector expressions, ADDR_SPACE_CONVERT_EXPR,
        FIXED_CONVERT_EXPR, OBJ_TYPE_REF and WITH_SIZE_EXPR.

        PR debug/43237
        * dwarf2out.c (add_bound_info): If a decl bound doesn't have decl_die,
        fallthrough to default handling, just with want_address 0 instead of 2.
        For single element lists, add_AT_loc directly, otherwise create an
        artificial variable DIE and stick location list to it.

        PR debug/43177
        * var-tracking.c (loc_cmp): Don't assert VALUEs have the same mode.
        (VAL_EXPR_HAS_REVERSE): Define.
        (reverse_op): New function.
        (add_stores): For reversible operations add an extra MO_VAL_USE.

2010-03-02  Jason Merrill  <jason@redhat.com>

        * c-pretty-print.c (pp_c_specifier_qualifier_list): Print vector size.

2010-03-02  Eric Botcazou  <ebotcazou@adacore.com>

        * config.gcc (sparc-*-linux*): Do not include sparc/gas.h.
        (sparc64-*-linux*): Likewise.
        (sparc64-*-solaris2*): Include assembler files before linker ones.
        (sparc-*-solaris2*): Simplify and reorder to match previous case.
        * config/sparc/gas.h: Delete.
        * config/sparc/sol2-64.h: Add copyright notice.
        * config/sparc/sol2-gas-bi.h: Likewise.
        * config/sparc/sol2-gld.h: Likewise.
        * config/sparc/sysv4.h (TARGET_ASM_NAMED_SECTION): Delete.
        * config/sparc/sol2.h (TARGET_ASM_NAMED_SECTION): Redefine.
        * config/sparc/sol2-gas.h (TARGET_ASM_NAMED_SECTION): Likewise.
        * config/sparc/sparc.c (TARGET_ASM_ALIGNED_SI_OP): Never redefine.
        (sparc_elf_asm_named_section): Rename into...
        (sparc_solaris_elf_asm_named_section): ...this.  Always define.

2010-03-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/alpha/alpha.c (override_options): Fix -mtune error message.

2010-03-02  Jeff Law  <law@redhat.com>

        PR middle-end/42431
        * reload1.c (rtx_p, substitute_stack): Declare.
        (substitute): Record addresses of changed rtxs.
        (gen_reload_chain_without_interm_reg_p): Don't use copy_rtx anymore.
        Restore the original rtx when complete.
        (reload): Free subsitute_stack when complete.

2010-03-02  Janis Johnson  <janis187@us.ibm.com>

        * doc/gccint.texi (menu): Add Testsuites as a chapter.
        * doc/sourcebuild.texi (Testsuites): Move up a level to be a
        new chapter.
        (Test Idioms, Test Directives, Ada Tests, C Tests, libgcj Tests,
        LTO Testing, gcov Testing, profopt Testing, compat Testing,
        Torture Tests): Change from subsection to section.

2010-03-02  Jakub Jelinek  <jakub@redhat.com>
            Steven Bosscher  <steven@gcc.gnu.org>

        * var-tracking.c (vt_initialize): Scan insns in ebb chunks
        instead of bb.

2010-03-02  Reza Yazdani  <reza.yazdani@amd.com>

        PR middle-end/42640
        * tree-loop-distribution.c (update_phis_for_loop_copy): Replaced
        the assignment from the new induction variable to the assignment
        of the value from the original loop PHI function.

2010-03-01  Janis Johnson  <janis187@us.ibm.com>
            Daniel Jacobowitz  <dan@codesourcery.com>

        * doc/sourcebuild.texi (Test directives): Clarify options to
        dg-skip-if.

2010-03-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_as_cfi_directive) [i?86-*-solaris*]:
        Disable cfi directives unless GCC and gas agree on using read-only
        .eh_frame sections for 64-bit.
        * configure: Regenerate.

2010-03-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43220
        * tree-ssa-ccp.c (optimize_stack_restore): Do not optimize
        BUILT_IN_STACK_{SAVE,RESTORE} around alloca.

2010-03-01  Richard Guenther  <rguenther@suse.de>
            Martin Jambor  <mjambor@suse.cz>

        PR middle-end/41250
        * gimplify.c (gimplify_body): Unset DECL_HAS_VALUE_EXPR_P on
        gimplified parameters.

2010-03-01  Christian Bruel  <christian.bruel@st.com>

        * except.c (dw2_build_landing_pads): set LABEL_PRESERVE_P.

2010-03-01  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/linux64.h (ASM_SPEC): Use SPEC_32 and SPEC_64.

2010-03-01  Richard Guenther  <rguenther@suse.de>

        PR middle-end/43213
        * expr.c (expand_assignment): Use the alias-oracle to tell
        if the rhs aliases the result decl.

2010-03-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR pch/14940
        * config/host-solaris.c (HOST_HOOKS_GT_PCH_GET_ADDRESS): Redefine
        to sol_gt_pch_get_address.
        (TRY_EMPTY_VM_SPACE): Define for all combinations of 32 and
        64-bit, SPARC and x86.
        (sol_gt_pch_get_address): New function.

2010-03-01  Marco Poletti  <poletti.marco@gmail.com>

        * toplev.h (inform_n, error_n): Declare.
        * diagnostic.c (inform_n, error_n): New function.

2010-03-01  Jakub Jelinek  <jakub@redhat.com>

        * cfgexpand.c (expand_used_vars): If an artificial non-ignored var
        has no rtl yet when processing local_decls, queue it and recheck
        if deferred stack allocation hasn't assigned it rtl.

2010-02-28  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (unspec_bbr_uid): New.
        (gen_block_redirect): Use it instead of INSN_UID.
        (gen_far_branch): Likewise.

2010-02-28  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/darwin.h (TARGET_SUBTARGET32_ISA_DEFAULT): Make
        it the same as TARGET_SUBTARGET64_ISA_DEFAULT.

2010-02-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/invoke.texi (Warning Options, RX Options): Fix typos.
        (Warning Options): -Wno-conversion-null is valid for
        Objective-C++ as well.
        * doc/tm.texi (Named Address Spaces): Likewise.
        * doc/plugins.texi (Plugins): Replace TABs with spaces.
        * doc/tree-ssa.texi (Tree SSA): Likewise.

2010-02-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/43202
        * config.gcc: Don't enable SSE math for i[34567]86-*-darwin*
        by default.  Don't set the default arch for
        i[34567]86-*-darwin*|x86_64-*-darwin*.

2010-02-27  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/43202
        * config.gcc: Enable SSE math for i[34567]86-*-darwin* by
        default.  Set the default 32bit/64bit archs with $with_arch
        instead of $arch for i[34567]86-*-*|x86_64-*-* targets.

2010-02-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43186
        * params.def (PARAM_MAX_UNROLL_ITERATIONS): New param.
        * doc/invoke.texi (max-completely-peel-loop-nest-depth): Document.
        * tree-ssa-loop-ivcanon.c (tree_unroll_loops_completely): Limit
        unroller iterations.

2010-02-27  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc: Set the default 32bit/64bit archs if 64bit ISA is
        required and i[34567]86-*-* targets don't support 64bit ISA.

2010-02-26  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/43096
        * tree-ssa-alias.c (same_type_for_tbaa): Return -1 if the types have
        the same alias set.

2010-02-26  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc: Set the default arch at least to Prescott for
        i[34567]86-*-darwin* and Pentium 4 for i[34567]86-*-* targets
        if SSE math is enabled.

2010-02-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * diagnostic.c (diagnostic_initialize): Update.
        (diagnostic_report_diagnostic): Test inhibit_notes_p for
        informative notes.
        * diagnostic.h (diagnostic_context): New bool inhibit_notes_p.
        (diagnostic_inhibit_notes): New.
        * toplev.c (process_options): inhibit notes with -fcompare-debug.

2010-02-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/20631
        * doc/cpp.texi: Use c90 instead of c89 and gnu90 instead of gnu89.
        * doc/standards.texi: Likewise.
        * doc/extend.texi: Likewise.
        * doc/trouble.texi: Likewise.
        * doc/cppopts.texi: Likewise.
        * doc/install.texi: Likewise.
        * c.opt (std=c90,std=gnu90): New options.
        * c-opts.c (c_common_handle_option): Handle them.

2010-02-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/24577
        * c-decl.c (undeclared_variable): Use an informative note.

2010-02-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43186
        * gimple.h (gimple_fold): Remove.
        * gimple.c (gimple_fold): Remove.  Inline into single user ...
        * tree-cfgcleanup.c (cleanup_control_expr_graph): ... here.
        Try harder for conditions.

2010-02-26  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43190
        * function.c (used_types_insert): Don't skip through named pointer
        types.  Don't use TYPE_MAIN_VARIANT if the original type has a name
        and it is different from the main variant's type.

2010-02-26  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (sminsi3): Remove bogus alternative.

2010-02-26  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc: Support --with-fpmath=sse for x86.

        * config/i386/ssemath.h: New.

        * doc/install.texi (--with-fpmath=sse): Documented.

2010-02-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43188
        * tree-vect-stmts.c (get_vectype_for_scalar_type): Do not build
        vector types of over-aligned element type.

2010-02-26  Uros Bizjak  <ubizjak@gmail.com>

        PR target/43175
        * config/i386/i386.c (expand_vec_perm_blend): Use correct
        operands in V8HImode subregs.  Fix operand order in VEC_MERGE rtx.

2010-02-26  Jan Kratochvil  <jan.kratochvil@redhat.com>

        * doc/invoke.texi (-fvar-tracking-assignments): Fix typo.

2010-02-26  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.in (var-tracking.o): Depend on $(DIAGNOSTIC_H).
        * var-tracking.c: Include diagnostic.h.
        (debug_dv): New function.
        (dump_var): Print DEBUG_EXPR_DECLs as D#N instead of D.-N.

        PR debug/43160
        * var-tracking.c (dv_onepart_p): Return true for DEBUG_EXPR_DECLs.
        (add_value_chain, add_value_chains, remove_value_chain,
        remove_value_chains): Handle DEBUG_EXPRs.
        (check_changed_vars_1, check_changed_vars_2): Handle DEBUG_EXPR_DECLs.

        PR debug/43161
        * regcprop.c (struct queued_debug_insn_change): New type.
        (struct value_data_entry): Add debug_insn_changes field.
        (struct value_data): Add n_debug_insn_changes field.
        (debug_insn_changes_pool): New variable.
        (free_debug_insn_changes, apply_debug_insn_changes,
        cprop_find_used_regs_1, cprop_find_used_regs): New functions.
        (kill_value_one_regno): Call free_debug_insn_changes if needed.
        (init_value_data): Clear debug_insn_changes and n_debug_insn_changes
        fields.
        (replace_oldest_value_reg): Don't change DEBUG_INSNs, instead queue
        changes for them.
        (copyprop_hardreg_forward_1): Don't call apply_change_group for
        DEBUG_INSNs.  For a real insn, if there are queued DEBUG_INSN
        changes, call cprop_find_used_regs via note_stores.
        (copyprop_hardreg_forward): When copying vd from predecessor
        which has any queued DEBUG_INSN changes, make sure the pointers are
        cleared.  At the end call df_analyze and then if there are any
        DEBUG_INSN changes queued at the end of some basic block for still
        live registers, apply them.
        (pass_cprop_hardreg): Set TODO_df_finish in todo_flags_finish.

2010-02-25  Uros Bizjak  <ubizjak@gmail.com>

        * config.gcc (i[34567]86-*-* | x86_64-*-*): Split long line.
        (arm*-*-*): Ditto.

2010-02-25  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc: Set arch/cpu for i[34567]86-*-*|x86_64-*-*
        targets.  Set the default with_cpu/with_arch from arch/cpu.
        Allow x86-64 and native for with_cpu/with_arch.

2010-02-25  Nicolas Benoit  <nbenoit@tuxfamily.org>

        * ebitmap.c: Change calls to verify_popcount with calls to
        sbitmap_verify_popcount.
        (ebitmap_clear_bit): Fixed map->cacheindex test and
        map>cache update when bit clearing results in an empty
        element.

2010-02-25  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/43154
        * config/rs6000/vector.md (VEC_64): New iterator for V2DF, V2DI.
        (vec_interleave_high<mode>): Rename from vec_interleave_highv2df
        and support both V2DF and V2DI modes.
        (vec_interleave_low<mode>): Rename from vec_interleave_lowv2df and
        support both V2DF and V2DI modes.
        (general): Delete trailing whitespace from a few patterns.

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        V2DF/V2DI interleave high/low builtins.

        * config/rs6000/rs6000-builtin.def (VSX_BUILTIN_VEC_MERGE*): Add
        new VSX builtins.

        * config/rs6000/rs6000.c (bdesc_2arg): Add support for V2DF/V2DI
        interleave high/low functions.

2010-02-25  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (Symbol-Renaming Pragmas): Fix spelling of
        #pragma extern_prefix.

2010-02-25  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43166
        * cfgexpand.c (expand_debug_expr) <case VAR_DECL>: If mode is
        BLKmode, assert op0 is a MEM and just adjust its mode.

        PR debug/43165
        * cfgexpand.c (expand_debug_expr): Don't call simplify_gen_subreg
        if bitpos isn't multiple of mode's bitsize.

2010-02-24  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * c.opt (-ftemplate-depth=): New.
        (-ftemplate-depth-): Deprecate.
        * optc-gen.awk: Handle -ftemplate-depth=.
        * opth-gen.awk: Likewise.
        * c-opts.c (c_common_handle_option): Likewise.
        * doc/invoke.texi (-ftemplate-depth-): Replace with -ftemplate-depth=.

2010-02-24  Jason Merrill  <jason@redhat.com>

        * doc/invoke.texi: Improve -Wabi and -fabi-version docs.

2010-02-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * cfg.c (alloc_aux_for_block): Remove inline.
        (alloc_aux_for_edge): Likewise.

2010-02-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc: Fix typo in mips-sgi-irix6.[0-4]* obsoletion.

2010-02-24  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/i386/sol2.h (NO_DBX_BNSYM_ENSYM): Define.
        * config/i386/sol2-gas.h: New file.
        * config.gcc (i[34567]86-*-solaris2*): Use it.

2010-02-24  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/43128
        * c-typeck.c (ep_convert_and_check): New.
        (build_conditional_expr): Use it.
        (build_binary_op): Likewise.

2010-02-24  Jakub Jelinek  <jakub@redhat.com>

        * regcprop.c (copyprop_hardreg_forward_1): Don't call df_insn_rescan.

        PR debug/43150
        * gimplify.c (gimplify_type_sizes): Clear DECL_IGNORED_P for VLA
        bounds even for -O+.
        * var-tracking.c (track_expr_p): If !need_rtl, don't mandate
        expr needs to have DECL_NAME set.

2010-02-24  Nick Clifton  <nickc@redhat.com>

        * config/mep/mep.c: Include gimple.h.
        (mep_function_uses_sp): Delete unused function.
        (mep_gimplify_va_arg_expr): Change types of pre_p and post_p
        parameters.  Use unsigned integers to count args.  Return a
        NULL_RTX instead of an error_mark_node.  Toidy up formatting.

2010-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/43107
        * config/i386/i386.c (avx_vpermilp_parallel): Reject indexes
        greater or equal to nelt instead of 2 * nelt.
        (expand_vec_perm_1): When op0 and op1 are equal, mask indexes
        with nelt - 1.

2010-02-23  Jason Merrill  <jason@redhat.com>

        PR debug/42800
        * cfgexpand.c (expand_used_vars): Keep artificial non-ignored vars
        in cfun->local_decls even if they have register types.

        PR c++/42837
        * stor-layout.c (place_field): Don't warn about unnecessary
        DECL_PACKED if the type is packed.

2010-02-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/43139
        * config/i386/i386.c (ix86_delegitimize_address): Delegitimize all
        GOTOFF relocs, even when the base reg isn't pic pointer.

2010-02-23  Michael Matz  <matz@suse.de>

        PR debug/43077
        * cfgexpand (expand_debug_expr): Expand TERed ssa names in place.
        (expand_gimple_basic_block): Generate and use debug temps if there
        are debug uses left after the last real use of TERed ssa names.
        Unlink debug immediate uses when they are expanded.

2010-02-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 43123
        * config/i386/i386.c (override_options): Reorganise to provide
        better error messages.

2010-02-22  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43083
        * graphite-scop-detection.c (create_single_exit_edge): Move
        the call to find_single_exit_edge to....
        (create_sese_edges): ...here.  Don't handle multiple edges
        exiting the function.
        (build_graphite_scops): Don't handle multiple edges
        exiting the function.

2010-02-22  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43097
        * sese.c (get_rename): Assert that old_name is an SSA_NAME.
        (rename_variables_in_stmt): Continue when the use is not an SSA_NAME.

2010-02-22  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/43026
        * sese.c (expand_scalar_variables_expr): Handle COMPONENT_REF.

2010-02-22  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/43126
        * c-typeck.c (convert_arguments): Print declaration location.
        * c-common.c (validate_nargs): Rename as
        builtin_function_validate_nargs.
        (check_builtin_function_arguments): Update.

2010-02-22  Richard Guenther  <rguenther@suse.de>

        PR lto/43045
        * tree-inline.c (declare_return_variable): Use the type of
        the call stmt lhs if available.

2010-02-22  Duncan Sands  <baldrick@free.fr>

        * passes.c (register_pass): Always consider all pass lists when
        ref_pass_instance_number is zero.

2010-02-22  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42749
        * tree-tailcall.c (adjust_return_value_with_ops): Drop update
        parameter.  Do arithmetic in the original type.
        (update_accumulator_with_ops): Likewise.
        (adjust_accumulator_values): Adjust.

2010-02-22  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md ("movqi"): Re-add the mem->mem alternative.
        (QI to BLKmode splitter): New splitter.

2010-02-22  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (initial_ix86_tune_features): Turn on
        X86_TUNE_INTER_UNIT_MOVES for m_ATOM.

2010-02-22  Richard Guenther  <rguenther@suse.de>

        * tree-vect-slp.c (vect_slp_analyze_bb): Fix typo.

2010-02-22  Hans-Peter Nilsson  <hp@bitrange.com>

        Migrate crti, crtn, crtbegin, crtend build rules to libgcc.
        * config/mmix/t-mmix (EXTRA_MULTILIB_PARTS): Don't set.
        ($(T)crti.o, $(T)crtn.o): Remove rules.

2010-02-21  Tobias Burnus  <burnus@net-b.de>

        PR fortran/35259
        * doc/invoke.texi (-fassociative-math): Document that this
        option is automatically enabled for Fortran.

2010-02-20  David S. Miller  <davem@davemloft.net>

        * configure.ac: Test if linker and assembler properly support
        GOTDATA_OP relocations.
        * configure: Rebuild.
        * config.in: Likewise.
        * config/sparc/sparc.md (UNSPEC_MOVE_GOTDATA): New.
        (movsi_lo_sum_pic): Use %gdop_*() relocs if available.
        (movsi_high_pic): Likewise.
        (movdi_lo_sum_pic): Likewise.
        (movdi_high_pic): Likewise.
        (movsi_pic_gotdata_op): New pattern.
        (movdi_pic_gotdata_op): Likewise.
        * config/sparc/sparc.c (legitimize_pic_address): If flag_pic is 2,
        emit gen_mov{si,di}_pic_gotdata_op for the GOT slot load.

2010-02-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/43067
        * config/i386/sse.md (xop_mulv2div2di3_low): Change type
        attribute to ssemul.
        (xop_mulv2div2di3_high): Ditto.

2010-02-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c++/35669
        * c.opt (Wconversion-null): New option.
        * doc/invoke.texi (Wconversion-null): Document.

2010-02-20  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        * common.opt (Wlarger-than-): Add Undocumented.

2010-02-19  Mike Stump  <mikestump@comcast.net>

        * config/t-darwin (gt-darwin.h): Remove as Makefile now handles it.

2010-02-19  Jason Merrill  <jason@redhat.com>

        PR target/40332
        * configure.ac (gcc_cv_as_cfi_advance_working): Check 32-bit advance.
        * configure: Likewise.

2010-02-20  Alan Modra  <amodra@gmail.com>

        PR middle-end/42344
        * cgraph.h (cgraph_make_decl_local): Declare.
        * cgraph.c (cgraph_make_decl_local): New function.
        (cgraph_make_node_local): Use it.
        * cgraphunit.c (cgraph_function_versioning): Likewise.
        * ipa.c (function_and_variable_visibility): Likewise.

2010-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/43121
        * except.c (sjlj_emit_function_enter): Don't call
        add_reg_br_prob_note, instead add REG_BR_PROB note to the last insn
        directly.
        * rtl.h (add_reg_br_prob_note): Remove prototype.

2010-02-19  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR 41779
        * c-common.c (conversion_warning): Remove widening conversions
        before checking the conversion of integers to reals.

2010-02-19  Mike Stump  <mikestump@comcast.net>

        PR middle-end/43125
        * c-decl.c (merge_decls): Merge DECL_PRESERVE_P.

        PR objc/43061
        * cgraphunit.c (process_function_and_variable_attributes): Check
        DECL_PRESERVE_P instead of looking up attribute "used".
        * ipa-pure-const.c (check_decl): Likewise.
        * ipa-reference.c (has_proper_scope_for_analysis): Likewise.
        * ipa-type-escape.c (has_proper_scope_for_analysis): Likewise.
        * config/sol2.c (solaris_insert_attributes): Set DECL_PRESERVE_P
        instead of attribute "used".
        * config/sol2-c.c (solaris_pragma_init): Likewise.
        (solaris_pragma_fini): Likewise.

2010-02-19  Jakub Jelinek  <jakub@redhat.com>

        * ipa-struct-reorg.c (make_field_acc_node, gen_cluster, peel_field):
        Use XCNEW instead of xcalloc.
        (add_access_to_acc_sites, create_new_var_node, add_alloc_site): Use
        XNEW instead of xmalloc.
        (get_fields): Use XNEWVEC instead of xmalloc.

        PR debug/43084
        * ipa-struct-reorg.c (add_access_to_acc_sites): For debug stmts don't
        populate vars array.
        (create_new_general_access): For debug stmts just reset value.
        (get_stmt_accesses): For accesses within debug stmts just record them
        using add_access_to_acc_sites instead of preventing the peeling or
        counting them as accesses.

        PR middle-end/42233
        * dojump.c (do_jump) <case TRUTH_NOT_EXPR>: Invert priority.

2010-02-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42916
        * tree-vect-slp.c (vect_slp_analyze_bb): Count only real
        instructions.

2010-02-19  Andreas Schwab  <schwab@linux-m68k.org>

        * configure.ac: Replace all uses of changequote in macro arguments
        with proper quoting.

2010-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/42233
        * loop-doloop.c (add_test): Adjust do_compare_rtx_and_jump caller.

2010-02-19  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42944
        * tree-ssa-alias.c (call_may_clobber_ref_p_1): Massage
        test for aliasing with errno.

2010-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/42233
        * expr.h (jumpifnot, jumpifnot_1, jumpif, jumpif_1, do_jump,
        do_jump_1, do_compare_rtx_and_jump): Add PROB argument.
        * dojump.c: Include output.h.
        (inv): New inline function.
        (jumpifnot, jumpifnot_1, jumpif, jumpif_1, do_jump_1, do_jump,
        do_jump_by_parts_greater_rtx, do_jump_by_parts_greater,
        do_jump_by_parts_zero_rtx, do_jump_by_parts_equality_rtx,
        do_jump_by_parts_equality, do_compare_and_jump): Add PROB
        argument, pass it down to other calls.
        (do_compare_rtx_and_jump): Likewise.  If PROB is not -1,
        add REG_BR_PROB note to the conditional jump.
        * cfgexpand.c (add_reg_br_prob_note): Removed.
        (expand_gimple_cond): Don't call it, add the probability
        as last argument to jumpif_1/jumpifnot_1.
        * Makefile.in (dojump.o): Depend on output.h.
        * builtins.c (expand_errno_check): Adjust do_compare_rtx_and_jump
        callers.
        * expmed.c (emit_store_flag_force, do_cmp_and_jump): Likewise.
        * stmt.c (do_jump_if_equal): Likewise.
        * cfgrtl.c (rtl_lv_add_condition_to_bb): Likewise.
        * loop-unswitch.c (compare_and_jump_seq): Likewise.
        * config/rs6000/rs6000.c (rs6000_aix_emit_builtin_unwind_init):
        Likewise.
        * optabs.c (expand_doubleword_shift, expand_abs): Likewise.
        * expr.c (expand_expr_real_1): Adjust do_jump, jumpifnot and
        jumpifnot_1 callers.
        (expand_expr_real_2): Adjust jumpifnot_1 and do_compare_rtx_and_jump
        callers.
        (store_expr): Adjust jumpifnot caller.
        (store_constructor): Adjust jumpif caller.

        PR middle-end/42233
        * gimplify.c (gimple_boolify): For __builtin_expect call
        gimple_boolify also on its first argument.

2010-02-18  Uros Bizjak  <ubizjak@gmail.com>

        * configure.ac (gnu-unique-object): Wrap regexps using [] in
        changequote block.
        (__stack_chk_fail): Ditto.  Remove quadrigraphs.
        * configure: Regenerated.

2010-02-18  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu-c.c (spu_resolve_overloaded_builtin): Call
        lang_hooks.types_compatible_p instead of comptypes.

2010-02-18  Sebastian Huber <sebastian.huber@embedded-brains.de>

        * config/arm/lib1funcs.asm (__prefer_thumb__): New define.
        (udivsi3, aeabi_uidivmod, divsi3, aeabi_idivmod): Use Thumb-1 variant
        if __prefer_thumb__ is defined.

2010-02-18  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/43066
        * tree-sra.c (build_ref_for_offset_1): Return false on encountering an
        array with zero-sized element type.

2010-02-18  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (add_var_loc_to_decl): Change last argument to
        rtx, allocate struct var_loc_node here and return it to the
        caller, and only if it is actually needed.
        (dwarf2out_var_location): Adjust add_var_loc_to_decl caller,
        move it earlier and return immediately if it returns NULL.

2010-02-17  Mikael Pettersson  <mikpe@it.uu.se>

        * config/sparc/gas.h: New file.  Restore
        TARGET_ASM_NAMED_SECTION to its ELF default.
        * config/sparc/sysv4.h (TARGET_ASM_NAMED_SECTION): Do not
        check !HAVE_GNU_AS.
        * config/sparc/sparc.c (sparc_elf_asm_named_section):
        Likewise.  Add ATTRIBUTE_UNUSED to prototype.
        * config.gcc (sparc*-*-linux*): Include sparc/gas.h
        after sparc/sysv4.h.

2010-02-17  Dave Korn  <dave.korn.cygwin@gmail.com>

        * config/i386/mingw32.h (LIBGCJ_SONAME): Fix cut'n'pasto in DLL name.

2010-02-17  Steven Bosscher  <steven@gcc.gnu.org>

        * gensupport.c (process_one_cond_exec): Derive name for COND_EXEC
        patterns from predicated pattern.

2010-02-17  Uros Bizjak  <ubizjak@gmail.com>

        PR target/43103
        * config/i386/sse.md (xop_vpermil2<mode>3): Use avxmodesuffixf2c
        for insn mnemonic suffix.

2010-02-17  Richard Guenther  <rguenther@suse.de>

        * tree-vrp.c (vrp_visit_phi_node): Restrict SCEV analysis
        to loop PHI nodes.

2010-02-17  Jakub Jelinek  <jakub@redhat.com>

        PR debug/42918
        * caller-save.c (save_call_clobbered_regs): If BB ends with
        a DEBUG_INSN, move any notes in between last real insn and the last
        DEBUG_INSN after the last DEBUG_INSN.

2010-02-16  Joern Rennecke  <joern.rennecke@embecosm.com>

        * tm.texi (TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC):
        Fix return type.  Fix argument type.  Explain meaning of return value.

2010-02-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/41043
        * tree-vrp.c  (vrp_var_may_overflow): Only ask SCEV for real loops.
        (vrp_visit_assignment_or_call): Do not ask SCEV for regular
        statements ...
        (vrp_visit_phi_node): ... but only for loop PHI nodes.

2010-02-16  Ira Rosen <irar@il.ibm.com>

        PR tree-optimization/43074
        * tree-vectorizer.h (VECTORIZABLE_CYCLE_DEF): New.
        * tree-vect-loop.c (vect_analyze_loop_operations): Add
        vectorizable cycles in hybrid SLP check.
        * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Likewise.

2010-02-16  Richard Guenther  <rguenther@suse.de>

        * alias.c (memrefs_conflict_p): Distinguish must-alias from don't know.
        (true_dependence): If memrefs_conflict_p computes must-alias
        trust it.  Move TBAA check after offset-based disambiguation.
        (canon_true_dependence): Likewise.

2010-02-16  Alexandre Oliva  <aoliva@redhat.com>

        * params.def (PARAM_MAX_VARTRACK_SIZE): New.
        * doc/invoke.texi: Document it.
        * var-tracking.c: Include toplev.h and params.h.
        (vt_find_locations): Return bool indicating success.  Compute
        hash sizes unconditionally.  Check new parameter, report.
        (variable_tracking_main_1): Check vt_find_locations results and
        retry.  Renamed from...
        (variable_tracking_main): ... this.  New wrapper to preserve
        flag_var_tracking_assignments.
        * Makefile.in (var-tracking.o): Adjust dependencies.

2010-02-16  Jack Howarth <howarth@bromo.med.uc.edu>
            Jakub Jelinek <jakub@redhat.com>

        PR target/42854
        * config/darwin.h (ASM_WEAKEN_DECL): Don't check weak attribute
        if weak_import attribute is present.
        * config/darwin.c (machopic_select_section): Likewise.

2010-02-15  Joern Rennecke  <joern.rennecke@embecosm.com>

        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST): Document.
        (TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE): Likewise.
        (TARGET_VECTORIZE_BUILTIN_VEC_PERM): Likewise.
        (TARGET_VECTORIZE_BUILTIN_VEC_PERM_OK): Likewise.

        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_CONVERSION): Fix argument types.

        * doc/tm.texi (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION):
        Fix argument types.

        * doc/tm.texi (TARGET_SCHED_DFA_NEW_CYCLE): Add argument names.
        Rewrite text to refer to the names.

2010-02-15  Sebastian Pop  <sebastian.pop@amd.com>

        * config/i386/i386-builtin-types.def
        (V2DF_FTYPE_V2DF_V2DF_V2DI_INT): Declared.
        (V4DF_FTYPE_V4DF_V4DF_V4DI_INT): Declared.
        (V4SF_FTYPE_V4SF_V4SF_V4SI_INT): Declared.
        (V8SF_FTYPE_V8SF_V8SF_V8SI_INT): Declared.
        * config/i386/i386.c (enum ix86_builtins): Add IX86_BUILTIN_VPERMIL2PD,
        IX86_BUILTIN_VPERMIL2PS, IX86_BUILTIN_VPERMIL2PD256, and
        IX86_BUILTIN_VPERMIL2PS256.
        (MULTI_ARG_4_DF2_DI_I): Defined.
        (MULTI_ARG_4_DF2_DI_I1): Defined.
        (MULTI_ARG_4_SF2_SI_I): Defined.
        (MULTI_ARG_4_SF2_SI_I1): Defined.
        (bdesc_multi_arg): Add __builtin_ia32_vpermil2pd,
        __builtin_ia32_vpermil2ps, __builtin_ia32_vpermil2pd256, and
        __builtin_ia32_vpermil2ps256.
        (ix86_expand_multi_arg_builtin): Handle MULTI_ARG_4_DF2_DI_I,
        MULTI_ARG_4_DF2_DI_I1, MULTI_ARG_4_SF2_SI_I, and
        MULTI_ARG_4_SF2_SI_I1.  Handle builtins with 4 arguments.
        (ix86_expand_args_builtin): Handle MULTI_ARG_4_DF2_DI_I,
        MULTI_ARG_4_DF2_DI_I1, MULTI_ARG_4_SF2_SI_I, and
        MULTI_ARG_4_SF2_SI_I1.  Handle CODE_FOR_xop_vpermil2v2df3,
        CODE_FOR_xop_vpermil2v4sf3, CODE_FOR_xop_vpermil2v4df3, and
        CODE_FOR_xop_vpermil2v8sf3.
        * config/i386/i386.md (UNSPEC_VPERMIL2): Declared.
        * config/i386/sse.md (xop_vpermil2<mode>3): New insn pattern.
        * config/i386/xopintrin.h (_mm_permute2_pd): New.
        (_mm256_permute2_pd): New.
        (_mm_permute2_ps): New.
        (_mm256_permute2_ps): New.

2010-02-15  Nick Clifton  <nickc@redhat.com>

        * config/h8300/h8300.c (h8300_push_pop): Use bool type for
        boolean parameters.  Use emit_jump_insn when emitting a pop
        instruction containing a return insn.
        (push): Use 'true' rather than '1' as second parameter to F.
        (h8300_expand_prologue): Likewise.
        Use 'true' and 'false' for boolean parameters to h8300_push_pop.
        (h8300_expand_epilogue): Likewise.

2010-02-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/43068
        * cgraphunit.c (thunk_adjust): Skip adjusting by fixed_offset
        if that is zero.

2010-02-15  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.h (FUNCTION_ARG_REGNO_P): Revert previous
        delta.

2010-02-14  Marco Poletti  <poletti.marco@gmail.com>

        * intl.c (fake_ngettext): New function.
        * intl.h (fake_ngettext): Declare.
        (ngettext): Define macro.
        * collect2.c (notice_translated): New function.
        (main): Use notice_translated and ngettext.
        * collect2.h (notice_translated): Declare.

2010-02-14  Steven Bosscher  <steven@gcc.gnu.org>

        * reorg.c (delete_computation): Comment fixes.
        * caller-save.c (setup_save_areas): Idem.
        * sel-sched-dump.c (dump_lv_set): Idem.
        * rtl.def: Idem.

2010-02-14  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_sched_init): New function.
        (TARGET_SCHED_INIT): Target hook defined.

2010-02-12  Dave Korn  <dave.korn.cygwin@gmail.com>
            Jack Howarth  <howarth@bromo.med.uc.edu>
            Iain Sandoe <iain.sandoe@sandoe-acoustics.co.uk>

        PR target/42982
        Partial revert of unintended change in fix for PR41605.
        * config/darwin.h: Fix typo.
        * config/darwin9.h: Same.

2010-02-11  Jakub Jelinek  <jakub@redhat.com>

        * c-pch.c (pch_init): Clear v.

2010-02-11  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/42930
        * graphite-scop-detection.c (graphite_can_represent_scev): Call
        graphite_can_represent_init for MULT_EXPR.

2010-02-11  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/42914
        PR middle-end/42530
        * graphite-sese-to-poly.c (remove_phi): New.
        (translate_scalar_reduction_to_array): Call remove_phi.

2010-02-11  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/42771
        * graphite-clast-to-gimple.c (gloog): Call rename_sese_parameters.
        * graphite-clast-to-gimple.h (gloog): Update declaration.
        * graphite-poly.c (new_scop): Clear POLY_SCOP_P.
        * graphite-poly.h (struct poly_bb): Add missing comments.
        (struct scop): Add poly_scop_p field.
        (POLY_SCOP_P): New.
        * graphite-sese-to-poly.c (build_poly_scop): Set POLY_SCOP_P.
        * graphite.c (graphite_transform_loops): Build the polyhedral
        representation for each scop before code generation.
        * sese.c (rename_variables_in_operand): Removed.
        (rename_variables_in_expr): Return the renamed expression.
        (rename_sese_parameters): New.
        * sese.h (rename_sese_parameters): Declared.

2010-02-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42998
        * tree-ssa-pre.c (create_expression_by_pieces): Treat
        POINTER_PLUS_EXPR properly.

2010-02-11  Sebastian Pop  <sebastian.pop@amd.com>
            Changpeng Fang  <changpeng.fang@amd.com>

        PR middle-end/40886
        * tree-ssa-loop-ivopts.c (determine_use_iv_cost_condition): Decrement
        the cost of an IV candidate when the IV is used in a test against zero.

        * gcc.dg/tree-ssa/ivopts-3.c: New.

2010-02-11  Richard Guenther  <rguenther@suse.de>

        PR lto/41664
        * tree-ssa-alias.c (refs_may_alias_p_1): Canonicalize
        pointer-vs-decl case by swapping refs.  Handle some cases
        of pointer-vs-decl disambiguations more conservatively.
        * cfgexpand.c (gimple_expand_cfg): Set gimple_df->in_ssa_p
        to false after expanding.

2010-02-11  Richard Guenther  <rguenther@suse.de>

        PR driver/43021
        * gcc.c (process_command): Handle LTO file@offset case more
        appropriately.

2010-02-11  Jakub Jelinek  <jakub@redhat.com>

        * reload1.c (eliminate_regs_1): If insn is DEBUG_INSN, avoid any
        modifications outside of the DEBUG_INSN.  Accept CLOBBERs inside
        of DEBUG_INSNs.
        (eliminate_regs_in_insn): Eliminate regs even in DEBUG_INSNs.

        * dwarf2out.c (mem_loc_descriptor) <case MEM>: Use DW_OP_deref_size
        if MEM's mode size isn't DWARF2_ADDR_SIZE.
        (mem_loc_descriptor) <do_scompare>: Allow also VOIDmode arguments.
        Optimize eq/ne comparisons when both arguments are known to be
        zero-extended.
        (mem_loc_descriptor) <do_ucompare>: Allow also VOIDmode arguments.
        Don't mask operands unnecessarily if they are known to be already
        zero-extended.

2010-02-10  Vladimir Makarov  <vmakarov@redhat.com>

        * ira-conflicts.c (add_insn_allocno_copies): Use find_reg_note
        instead of loop.

2010-02-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43017
        * tree-vrp.c (vrp_int_const_binop): Trust int_const_binop
        for wrapping signed arithmetic.

2010-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR debug/43010
        * dwarf2out.c (retry_incomplete_types): Don't call gen_type_die
        if no debug info should be emitted for it.

2010-02-10  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (find_barrier): Skip call insn with a REG_EH_REGION
        note when flag_exceptions is set.

2010-02-10  Duncan Sands  <baldrick@free.fr>

        * Makefile.in (PLUGIN_HEADERS): Add debug.h.

2010-02-10  Richard Guenther  <rguenther@suse.de>

        PR c/43007
        * tree.c (get_unwidened): Handle constants.
        * convert.c (convert_to_integer): Handle TRUNC_DIV_EXPR.

2010-02-10  Martin Jambor  <mjambor@suse.cz>

        PR lto/42985
        * ipa-prop.c (ipa_update_after_lto_read): Count parameters and
        check for variable argument counts independently.

2010-02-10  Christian Bruel  <christian.bruel@st.com>

        PR target/42841
        * config/sh/sh.c (find_barrier): Increase length for non delayed
        conditional branches.

2010-02-10  Christian Bruel  <christian.bruel@st.com>

        * config/sh/sh.c (find_barrier): Don't emit a CP inside the GP setting.

2010-02-10  Jakub Jelinek  <jakub@redhat.com>

        * builtins.c (set_builtin_user_assembler_name): Also handle
        ffs if int is smaller than word.

2010-02-09  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/42973
        * ira-conflicts.c (get_dup): Remove.
        (process_reg_shuffles): Add new parameter.  Use it as an
        additional guard for copy generation.
        (add_insn_allocno_copies): Rewrite.

2010-02-09  Alexander Monakov  <amonakov@ispras.ru>

        * common.opt (fsched2-use-traces): Preserved for backward
        compatibility.
        * doc/invoke.texi: Remove the documentation about option
        -fsched2-use-traces.
        * sched-rgn.c (rest_of_handle_sched2): Remove usage of
        flag_sched2_use_traces.
        * opts.c (common_handle_option): Add OPT_fsched2_use_traces to
        the backward compatibility flag section.

2010-02-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43008
        * tree-ssa-structalias.c (handle_lhs_call): Pass in the fndecl,
        make HEAP variables initialized from global memory if they
        are not known builtin functions.
        (find_func_aliases): Adjust.

2010-02-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43000
        * tree-vrp.c (vrp_int_const_binop): Only handle unsigned
        arithmetic manually.

2010-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/42931
        * tree-loop-linear.c (try_interchange_loops): Don't call
        double_int_mul if estimated_loop_iterations failed.

2010-02-08  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/42898
        * tree-sra.c (build_accesses_from_assign): Do not mark in
        should_scalarize_away_bitmap if stmt has volatile ops.
        (sra_modify_assign): Do not process assigns piecemeal if if stmt
        has volatile ops.

2010-02-08  Joern Rennecke  <joern.rennecke@embecosm.com>

        * doc/tm.texi (TARGET_UNWIND_WORD_MODE): Document.

2010-02-07  Adam Nemet  <adambnmet@gmail.com>

        * config/mips/mips.md (*<optab>_trunc<mode>_exts): Fix comment
        before the pattern.

2010-02-07  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/42946
        * df-core.c (df_finish_pass): Change type of saved_flags to int.

2010-02-07  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/42988