graphite-sese-to-poly.c (split_reduction_stmt): Skip debug statements before splittin...

[gcc.git] / gcc / ChangeLog

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
        * graphite-dependences.c (dependence_polyhedron): Set PDDR_KIND
        to unknown_dependence.
        (graphite_legal_transform_dr): Handle the unknown_dependence.
        (graphite_carried_dependence_level_k): Same.

2010-02-07  Sebastian Pop  <sebastian.pop@amd.com>

        * ChangeLog.graphite: Remove testsuite/ or gcc/testsuite/.

2010-02-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42991
        * expr.c (get_inner_reference): Always initialize *pbitsize.

2010-02-07  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42956
        * gimplify.c (gimple_fold_indirect_ref): Avoid generating
        new ARRAY_REFs on variable size element or minimal index arrays.
        Complete.
        * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Use
        gimple_fold_indirect_ref.

2010-02-06  Richard Earnshaw  <rearnsha@arm.com>

        PR target/42957
        * arm.c (arm_override_options): Just return if the user has specified
        an invalid fpu name.

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

        PR c++/42870
        * config/i386/cygming.h (ASM_OUTPUT_DEF_FROM_DECLS): Call
        i386_pe_maybe_record_exported_symbol.

2010-02-05  Steve Ellcey  <sje@cup.hp.com>

        PR target/42924
        * config/pa/pa.c (TARGET_DELEGITIMIZE_ADDRESS): Redefine.
        (pa_delegitimize_address): New function.

2010-02-05  Ozkan Sezer  <sezeroz@gmail.com>

        * config/i386/msformat-c.c (ms_printf_length_specs): Set the
        scalar_identity_flag for the size_t/ptrdiff_t %Id and %Iu specs.

2010-02-05  Richard Guenther  <rguenther@suse.de>

        PR lto/42762
        * lto-streamer-in.c (get_resolution): Deal with references
        to undefined functions.

2010-02-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (get_symbol_constant_value): Strip all conversions.
        (fold_const_aggregate_ref): Likewise.
        (ccp_fold_stmt): Substitute loads.
        (maybe_fold_reference): Verify types before substituting.
        Unshare properly.
        (fold_gimple_assign): Unshare properly.
        (fold_stmt_1): Insert conversion if necessary before replacing the RHS.

2010-02-05  Nathan Froyd  <froydnj@codesourcery.com>

        * config/rs6000/rs6000.c (rs6000_override_options): Invert check
        for rs6000_gen_cell_microcode.

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

        PR rtl-optimization/42952
        * dse.c (const_or_frame_p): Remove MEM handling.

2010-02-04  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.c (TARGET_ASM_OUTPUT_MI_THUNK): Define.
        (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Define.
        (function_arg): Use NULL_RTX and FIRST_ARGUMENT_REGNUM.
        (mn10300_asm_output_mi_thunk): New function.
        (mn10300_can_output_mu_thunk): New function.
        * config/mn10300/mn10300.h (FIRST_ARGUMENT_REGNUM): Define.
        (FUNCTION_ARG_REGNO_P): Fix comment.  Accept d0 and d1.
        (FUNCTION_ARG): Delete incorrect comment.

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

        PR c++/40138
        * fold-const.c (operand_equal_p): Handle erroneous types.

2010-02-03  Kaushik Phatak  <kaushik.phatak@kpitcummins.com>

        * config/h8300/h8300.md (can_delay): Fix attibute condition.

2010-02-03  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/42941
        * sched-deps.c (setup_insn_reg_pressure_info): Use xcalloc instead
        of xmalloc.

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

        PR c++/35652
        * builtins.c (c_strlen): Use EXPR_LOCATION in diagnostics.

2010-02-03  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42896
        * cselib.h (struct cselib_val_struct): Add uid.  Rename value to hash.
        (cselib_reset_table): Renamed from...
        (cselib_reset_table_with_next_value): ... this.
        (cselib_get_next_uid): Renamed from...
        (cselib_get_next_unknown_value): ... this.
        * cselib.c (next_uid): Renamed from...
        (next_unknown_value): ... this.
        (cselib_clear_table): Adjust.
        (cselib_reset_table): Adjust.  Renamed from...
        (cselib_reset_table_with_next_value): ... this.
        (cselib_get_next_uid): Adjust.  Renamed from...
        (cselib_get_next_unknown_value): ... this.
        (get_value_hash): Use hash.
        (cselib_hash_rtx): Likewise.
        (new_cselib_val): Adjust.  Set and dump uid.
        (cselib_lookup_mem): Pass next_uid as hash.
        (cselib_subst_to_values): Likewise.
        (cselib_log_lookup): Dump uid.
        (cselib_lookup): Pass next_uid as hash.  Adjust.
        (cselib_process_insn): Adjust.
        (cselib_init): Initialize next_uid.
        (cselib_finish): Adjust.
        (dump_cselib_table): Likewise.
        * dse.c (canon_address): Dump value uid.
        * print-rtl.c (print_rtx): Print value uid.
        * var-tracking.c (VARIABLE_HASH_VAL): Dropped.
        (dvuid): New type.
        (dv_uid): New function, sort of renamed from...
        (dv_htab_hash): ... this, reimplemented in terms of it and...
        (dv_uid2hash): ... this.  New.
        (variable_htab_eq): Drop excess assertions.
        (tie_break_pointers): Removed.
        (canon_value_cmp): Compare uids.
        (variable_post_merge_New_vals): Print uids.
        (vt_add_function_parameters): Adjust.
        (vt_initialize): Reset table.  Adjust.

2010-02-03  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42944
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Handle calloc.
        (call_may_clobber_ref_p_1): Likewise.  Properly handle
        malloc and calloc clobbering errno.

2010-02-03  Steven Bosscher  <steven@gcc.gnu.org>

        * doc/invoke.texi: Fix name of sched1 dump.

        * opts.c (decode_options): Set flag_tree_switch_conversion
        only conditionally on optimize >= 2.

        * gcse.c: Assorted comment fixes in pass description.

2010-02-03  Anthony Green  <green@moxielogic.com>

        * config/moxie/moxie.c (moxie_asm_trampoline_template): Introduce
        nop padding in order to maintain alignment of storage location of
        target function address.
        (moxie_trampoline_init): Store target function address at newly
        aligned location.
        * config/moxie/moxie.h (TRAMPOLINE_ALIGNMENT): Increase alignment
        to 32.
        (TRAMPOLINE_SIZE): Increase size by 2 bytes for alignment padding.

2010-02-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42927
        * tree-cfg.c (verify_gimple_assign_binary): Fix shift verification.

2010-02-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc: Reenable check for obsolete targets.
        Obsolete alpha*-dec-osf4*, alpha*-dec-osf5.0*, mips-sgi-irix5*,
        mips-sgi-irix6.[0-4]*.

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

        * config/rx/rx.c (rx_is_legitimate_constant): Treat a maximum
        constant size of 4 as being the same as 0.
        * doc/invoke.texi (RX Options): Document that -mmax-constant-size
        can take values in the range 0..4.

2010-02-02  Jack Howarth  <howarth@bromo.med.uc.edu>

        PR java/41991
        * unwind-dw2-fde-darwin.c: Re-export _Unwind_FindEnclosingFunction()
        as _darwin10_Unwind_FindEnclosingFunction().
        * libgcc-libsystem.ver: New.

2010-02-01  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/41399
        * sched-deps.c (sched_analyze_insn): Ignore fixed registers for
        implicitly set registers.

2010-02-01  Richard Earnshaw  <rearnsha@arm.com>

        * arm.c (FL_FOR_ARCH_7A): is also a superset of ARMv6K.
        (arm_override_options): Allow automatic selection of the thread
        pointer register if thumb2.
        (legitimize_pic_address): Improve code sequences for Thumb2.
        (arm_call_tls_get_addr): Likewise.
        (legitimize_tls_address): Likewise.
        * arm.md (pic_load_addr_arm): Delete.  Replace with ...
        (pic_load_addr_32bit): ... this.  New named pattern.
        * thumb2.md (pic_load_addr_thumb2): Delete.
        (pic_load_dot_plus_four): Delete.
        (tls_load_dot_plus_four): New named pattern.

2010-02-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR libgomp/29986
        * doc/install.texi (Specific): Add sparc-sun-solaris2.10 entry.
        Document fix for TLS bug.

2010-01-31  Richard Guenther  <rguenther@suse.de>

        * tree-sra.c (ptr_parm_has_direct_uses): Rewrite to be
        conservatively correct.

2010-01-31  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/42850
        Revert:
        2010-01-02  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config/pa/t-slibgcc-dwarf-ver (SHLIB_SOVERSION): Bump by two.

2010-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

        * doc/install.texi: Update recommended GMP/MPFR/MPC versions.

2010-01-31  Kai Tietz  <kai.tietz@onevision.com>

        * config.gcc: Adjust order of makefile fragments for mingw targets.

2010-01-31  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42898
        * gimplify.c (gimplify_init_constructor): For volatile LHS
        initialize a temporary.

2010-01-31  Matthias Klose  <doko@ubuntu.com>

        * configure.ac: Fix __stack_chk_fail check for cross builds configured
        --with-headers
        * configure: Regenerate.

2010-01-29  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-alias.c (same_type_for_tbaa): Return -1 if the types have
        the same alias set and their sizes different constantness.
        (aliasing_component_refs_p): Revert 2009-10-24 change.

2010-01-29  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sparc/sparc.c (sparc_elf_asm_named_section): Declare decl
        unused.

2010-01-29  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (ccp_fold_stmt): Unshare values we substitute.
        Assert we successfully updated the call.

2010-01-29  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/42889
        * df.h (df_set_bb_dirty_nonlr): New prototype.
        * df-core.c (df_set_bb_dirty_nonlr): New function.
        * df-scan.c (df_insn_rescan): Call it instead of
        df_set_bb_dirty for DEBUG_INSNs.

2010-01-29  Richard Guenther  <rguenther@suse.de>

        PR middle-end/37448
        * ipa-inline.c (cgraph_decide_inlining_incrementally): Avoid
        quadratic behavior in most cases.

2010-01-28  Uros Bizjak  <ubizjak@gmail.com>

        PR target/42891
        * config/i386/i386.c (ix86_expand_int_movcc): Convert tmp to SImode
        in the call to gen_x86_movsicc_0_m1.

2010-01-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42871
        * tree-ssa-pre.c (phi_translate_set): Make sure to retain leaders.

2010-01-28  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-ccp.c (ccp_fold_stmt): Fold calls and propagate
        into call arguments.

2010-01-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42883
        * tree-cfgcleanup.c (remove_forwarder_block): Do not remove
        the forwarder if the destination is an EH landing pad.

2010-01-28  Razya Ladelsky  <razya@il.ibm.com>

        * tree-parloops.c (transform_to_exit_first_loop): Update the basic
        block list passed to gimple_duplicate_sese_tail.
        (parallelize_loops): Avoid parallelization when the function
        has_nonlocal_label.
        Avoid parallelization when the preheader is IRREDUCIBLE.
        Try to optimize when estimated_loop_iterations_int is unresolved.
        Add the loop's location to the dump file.
        * tree-cfg.c (add_phi_args_after_redirect): Remove.
        (gimple_duplicate_sese_tail): Remove the check for the latch.
        Redirect nexits to the exit block.
        Remove handling of the incoming edges to the latch.
        Redirect the backedge from the copied latch to the exit bb.

2010-01-28  Michael Matz  <matz@suse.de>

        PR target/42881
        * config/i386/i386.c (ix86_expand_vector_init_duplicate):
        Wrap force_reg into a sequence, emit it before user.

2010-01-28  Stephen Thomas  <stephen.thomas@arm.com>

        * config/arm/arm.md (bswapsi2): Add support for bswapsi2.
        (arm_rev): New.
        (arm_legacy_rev): Likewise.
        (thumb_legacy_rev): Likewise.

2010-01-27  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (mem_loc_descriptor): Remove special casing of
        CONSTANT_POOL_ADDRESS_P SYMBOL_REFs.  If for MEM recursive call
        on MEM's address failed, try avoid_constant_pool_reference and
        recurse if it returned something different.
        (loc_descriptor): If for MEM mem_loc_descriptor failed on the
        address, try avoid_constant_pool_reference and recurse if it
        returned something different.
        (dw_loc_list_1): If for MEM mem_loc_descriptor failed on the
        address and avoid_constant_pool_reference returned something
        different, don't set have_address.

2010-01-27  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42861
        * var-tracking.c (val_store): Add modified argument, obey it.
        Adjust callers.
        (count_uses): Move down logging of main.
        (compute_bb_dataflow): Use val_store for MO_VAL_USEs that
        don't need resolution.
        (emit_notes_in_bb): Likewise.

2010-01-27  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42878
        * tree-inline.c (remap_decl): Delay remapping of SSA name
        default definitions until we need them.

2010-01-27  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/rs6000.c (TARGET_DELEGITIMIZE_ADDRESS): Redefine.
        (rs6000_delegitimize_address): New function.

        * config/s390/s390.c (s390_delegitimize_address): Call
        delegitimize_mem_from_attrs.

        PR middle-end/42874
        * tree-inline.c (cannot_copy_type_1): Removed.
        (copy_forbidden): Don't forbid copying of functions containing
        records/unions with variable length fields.

2010-01-27  Christian Bruel  <christian.bruel@st.com>

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

2010-01-27  Matthias Klose  <doko@ubuntu.com>

        * configure.ac (gnu-unique-object): Fix ldd version check.
        * configure: Regenerate.

2010-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sparc/sparc.c (sparc_elf_asm_named_section): Test for
        HAVE_GNU_AS value.
        * config/sparc/sysv4.h [HAVE_GNU_AS] (TARGET_ASM_NAMED_SECTION):
        Test for HAVE_GNU_AS value.

2010-01-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc (mips-sgi-irix[56]*): Set use_gcc_stdint.
        * config/mips/iris.h (INT8_TYPE, INT16_TYPE, INT32_TYPE,
        INT64_TYPE): Define.
        (UINT8_TYPE, UINT16_TYPE, UINT32_TYPE, UINT64_TYPE): Define.
        (INT_LEAST8_TYPE, INT_LEAST16_TYPE, INT_LEAST32_TYPE,
        INT_LEAST64_TYPE): Define.
        (UINT_LEAST8_TYPE, UINT_LEAST16_TYPE, UINT_LEAST32_TYPE,
        UINT_LEAST64_TYPE): Define.
        (INT_FAST8_TYPE, INT_FAST16_TYPE, INT_FAST32_TYPE)
        INT_FAST64_TYPE): Define.
        (UINT_FAST8_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE,
        UINT_FAST64_TYPE): Define.
        (INTMAX_TYPE, UINTMAX_TYPE): Define.
        (INTPTR_TYPE, UINTPTR_TYPE): Define.
        (SIG_ATOMIC_TYPE): Define.

2010-01-26  Richard Guenther  <rguenther@suse.de>

        * df-scan.c (df_scan_set_bb_info): Remove assert.
        (df_insn_rescan_debug_internal): Merge asserts.
        (df_install_ref): Likewise.
        (df_mark_reg): Use bitmap_set_range.
        (df_hard_reg_used_p): Remove assert.
        (df_hard_reg_used_count): Likewise.

2010-01-26  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/42685
        * web.c (web_main): Ignore DEBUG_INSNs.

2010-01-26  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi (TARGET_HANDLE_C_OPTION): Explain arguments.

        (TARGET_RESOLVE_OVERLOADED_BUILTIN): Add loc parameter.
        Fix types of fndecl and arglist parameters.

2010-01-26  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42806
        * tree-eh.c (unsplit_eh): Skip debug insns.

2010-01-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42250
        * ipa-type-escape.c (type_escape_execute): Do not analyze clones.

2010-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/42866
        * omp-low.c (expand_omp_sections): Only use single_pred if
        l2_bb is single_pred_p.

2010-01-25  Christian Bruel  <christian.bruel@st.com>

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

2010-01-24  David S. Miller  <davem@davemloft.net>

        * config/sparc/sysv4.h (TARGET_ASM_NAMED_SECTION): Only
        define if not using GAS.
        * config/sparc/sparc.c (sparc_elf_asm_named_section):
        Likewise.  Delete SECTION_MERGE code, which is only applicable
        when using GAS.

2010-01-24  Mark Mitchell  <mark@codesourcery.com>

        PR c++/42748
        * config/arm/arm.c (arm_mangle_type): Do not warn about changes to
        mangling of va_list in system headers.

2010-01-23  Toon Moene  <toon@moene.org>

        * tree-predcom.c (combine_chains): Return NULL, not false.

2010-01-23  Joern Rennecke  <amylaar@spamcop.net>

        * tree-loop-distribution.c (distribute_loop): Fix declaration and
        initialization of variable res to agree with return type.

2010-01-22  Steve Ellcey  <sje@cup.hp.com>

        * Makefile.in (tree-sra.o): Add $(EXPR_H) dependency.
        * tree-sra.c: Add include of expr.h.

2010-01-22  Jakub Jelinek  <jakub@redhat.com>

        * tree-into-ssa.c (maybe_register_def): If stmt ends the bb,
        insert the debug stmt on the single non-EH edge from the stmt.

2010-01-22  Richard Henderson  <rth@redhat.com>

        PR tree-opt/42833
        * tree-sra.c (sra_modify_assign): Delay re-gimplification of
        the RHS until after generate_subtree_copies has insertted its
        code before the current statement.

2010-01-22  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): Fix return type.

        * gcc-plugin.h (plugin_init): Use "C" likage for c++.

2010-01-21  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42585
        * tree-sra.c (struct access): New field grp_total_scalarization.
        (dump_access): Dump the new field.
        (should_scalarize_away_bitmap): New variable.
        (cannot_scalarize_away_bitmap): Likewise.
        (sra_initialize): Allocate new bitmaps.
        (sra_deinitialize): Free new bitmaps.
        (create_access_1): New function.
        (create_access): Parts moved to create_access_1.
        (type_consists_of_records_p): New function.
        (completely_scalarize_record): Likewise.
        (build_access_from_expr): Set bit in cannot_scalarize_away_bitmap.
        (build_accesses_from_assign): Set bits in should_scalarize_away_bitmap.
        (sort_and_splice_var_accesses): Hint groups with a total_scalarization
        access.
        (analyze_all_variable_accesses): Completely scalarize small eligible
        records.

2010-01-21  Martin Jambor  <mjambor@suse.cz>

        * tree-sra.c (build_ref_for_offset_1): Allow for zero size fields.

2010-01-21  Andrew Haley  <aph@redhat.com>

        * gcc.c (process_command): Move lang_specific_driver before
        setting cc_libexec_prefix.

2010-01-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/19988
        * fold-const.c (negate_expr_p): Pretend only negative
        real constants are easily negatable.

2010-01-20  Janis Johnson  <janis187@us.ibm.com>
            Jason Merrill  <jason@redhat.com>

        * tree.h (TYPE_TRANSPARENT_UNION): Replace with ...
        (TYPE_TRANSPARENT_AGGR): this, for union and record.
        * calls.c (initialize argument_information): Handle it.
        * c-common.c (handle_transparent_union_attribute): Use new name.
        * c-decl.c (finish_struct): Ditto.
        * c-typeck.c (type_lists_compatible_p): Ditto.
        (convert_for_assignment): Use new name and also handle record.
        * function.c (aggregate_value_p): Handle it.
        (pass_by_reference): Ditto.
        (assign_parm_data_types): Ditto.
        * print-tree.c (print_node): Ditto.
        * lto-streamer-in.c (unpack_ts_type_value_fields): Ditto.
        * lto-streamer-out.c (pack_ts_type_value_fields): Ditto.
        * tree.c (first_field): New fn.

2010-01-21  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/42818
        * config/i386/cygwin.h (CXX_WRAP_SPEC_LIST): Always apply wrappers,
        even when linking statically, for now.

2010-01-20  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42715
        * var-tracking.c (use_type): Choose MO_VAL_SET for REGs set
        without a cselib val.
        (count_uses): Accept MO_VAL_SET with no val on stores.
        (add_stores): Likewise.

2010-01-20  Jakub Jelinek  <jakub@redhat.com>

        * var-tracking.c (check_value_val): Add a compile time assertion.
        (dv_is_decl_p): Simplify.
        (dv_as_decl, dv_as_value, dv_from_decl, dv_from_value): Only use
        gcc_assert if ENABLE_CHECKING.

2010-01-20  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42782
        * var-tracking.c: Include tree-flow.h.
        (mem_dies_at_call): New.
        (dataflow_set_preserve_mem_locs): Use it.
        (dataflow_set_remove_mem_locs): Likewise.
        (dump_var): Renamed from dump_variable.  Adjust all callers.
        (dump_var_slot): Renamed from dump_variable_slot.  Likewise.
        * Makefile.in (var-tracking.o): Adjust deps.

2010-01-20  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi (TARGET_SCHED_SET_SCHED_FLAGS): Fix argument list.

2010-01-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42717
        * tree-ssa-dce.c (get_live_post_dom): Remove.
        (forward_edge_to_pdom): Take an arbitrary edge to copy
        degenerate PHI args from.
        (remove_dead_stmt): Use the first post-dominator even if it
        does not contain live statements as redirection destination.

2010-01-20  Richard Guenther  <rguenther@suse.de>

        * tree-inline.c (estimate_num_insns): Handle EH builtins.

2010-01-20  Jakub Jelinek  <jakub@redhat.com>

        * sel-sched.c (create_speculation_check): Remove set but not used
        variable twin.
        (try_transformation_cache): Remove set but not used variable ds.
        (calculate_privileged_insns): Remove set but not used variables
        cur_insn and min_spec_insn.
        (find_best_expr): Remove set but not used variable avail_n.
        * tree-predcom.c (base_names_in_chain_on): Remove set but not used
        variable e.
        * cgraphunit.c (assemble_thunk): Remove set but not used variable
        false_label.
        * haifa-sched.c (remove_notes): Remove set but not used variable prev.
        * graphite-clast-to-gimple.c (gloog): Remove set but not used variable
        new_scop_exit_edge.

2010-01-20  Felyza Wishbringer  <fwishbringer@gmail.com>

        PR bootstrap/42786
        * config.gcc (i[34567]86-*-*): Fix handling of athlon64 and athlon-fx
        cpu types.  Add support for *-sse3 cpu types.
        (x86_64-*-*): Ditto.

2010-01-20  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/42803
        * varasm.c (narrowing_initializer_constant_valid_p): Add CACHE
        argument, call initializer_constant_valid_p_1 instead of
        initializer_constant_valid_p, pass CACHE to it, return NULL
        immediately if first call returns NULL.
        (initializer_constant_valid_p_1): New function.
        (initializer_constant_valid_p): Use it.

2010-01-20  Thomas Quinot  <quinot@adacore.com>

        * tree.def (PLACEHOLDER_EXPR): Fix comment.

2010-01-20  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (mem_loc_descriptor): Use DW_OP_mod for UMOD instead
        of MOD, handle MOD using DW_OP_{over,over,div,mul,minus}.
        (loc_list_from_tree): Don't handle unsigned division.  Handle
        signed modulo using DW_OP_{over,over,div,mul,minus}.
        * unwind-dw2.c (execute_stack_op): Handle DW_OP_mod using unsigned
        modulo instead of signed.

2010-01-20  DJ Delorie  <dj@redhat.com>

        * config/h8300/h8300.c (F): Add "in_epilogue" flag.
        (Fpa): Pass it
        (h8300_emit_stack_adjustment): Propogate it.
        (push): Pass it.
        (h8300_expand_prologue): Likewise.
        (h8300_expand_epilogue): Likewise.

2010-01-19  Michael Matz  <matz@suse.de>

        PR tree-optimization/41783
        * tree-data-ref.c (toplevel): Include flags.h.
        (dump_data_dependence_relation):  Also dump the inputs if the
        result will be unknown.
        (split_constant_offset_1): Look through some conversions.
        * tree-predcom.c (determine_roots_comp): Restart a new chain if
        the offset from last element is too large.
        (ref_at_iteration): Deal also with MISALIGNED_INDIRECT_REF.
        (reassociate_to_the_same_stmt): Handle vector registers.
        * tree-vect-data-refs.c (vect_equal_offsets): Handle unary operations
        (e.g. conversions).
        * tree-vect-loop-manip.c (vect_gen_niters_for_prolog_loop): Add
        wide_prolog_niters argument, emit widening instructions.
        (vect_do_peeling_for_alignment): Adjust caller, use widened
        variant of the iteration cound.
        * Makefile.in (tree-data-ref.o): Add $(FLAGS_H).

2010-01-19  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/38697
        * config/arm/neon-testgen.m (emit_automatics): New parameter
        features. Adjust for Fixed_return_reg feature.
        (test_intrinsic): Call emit_automatics with new feature.
        * config/arm/neon.ml: Update copyright years.
        (features): New Fixed_return_reg feature.
        (ops): Update feature for Vget_low.

2010-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/42719
        * tree-outof-ssa.c (trivially_conflicts_p): Don't consider debug
        stmt uses.

        PR debug/42728
        * fwprop.c (all_uses_available_at): Return false if def_set dest
        is a REG that is used in def_insn.

2010-01-19  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi (TARGET_FIXED_CONDITION_CODE_REGS): Add argument names.

        (TARGET_CC_MODES_COMPATIBLE): Put return value in braces.
        Add argument names.

        (TARGET_SCHED_INIT_SCHED_CONTEXT): Clarify language.

        * target.h (struct gcc_target) <secondary_reload>: Change type
        of last argument to secondary_reload_info *.

2010-01-18  Uros Bizjak  <ubizjak@gmail.com>

        PR target/42774
        * config/alpha/predicates.md (aligned_memory_operand): Return 0 for
        memory references with unaligned offsets.  Remove CQImode handling.
        (unaligned_memory_operand): Return 1 for memory references with
        unaligned offsets.  Remove CQImode handling.

2010-01-18  Richard Guenther  <rguenther@suse.de>

        PR middle-end/39954
        * cfgexpand.c (expand_call_stmt): TER pointer arguments in
        builtin calls.

2010-01-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42781
        * tree-ssa-structalias.c (find_what_var_points_to): Skip
        restrict processing only if the original variable was artificial.

2010-01-18  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi (TARGET_ASM_FUNCTION_EPILOGUE): Update text on where to
        find number of popped argument bytes.

        (TARGET_INVALID_WITHIN_DOLOOP): Put return value in braces.
        Fix the text that describes the return value for invalid insns.

        (TARGET_SCHED_NEEDS_BLOCK_P): Fix return type.  Fix argument list.

        (TARGET_SCHED_IS_COSTLY_DEPENDENCE): Fix argument types.
        Clarify what 'cost of the -dependence' is.  Fix quoting.

        * toplev.c (default_get_pch_validity): Rename argument to "sz".
        * doc/tm.texi (TARGET_GET_PCH_VALIDITY): Likewise.

2010-01-17  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (mem_loc_descriptor): Don't ICE on
        {S,U}S_{PLUS,MINUS,NEG,ABS,ASHIFT}.

2010-01-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42248
        * function.c (split_complex_args): Take a VEC to modify.
        (assign_parms_augmented_arg_list): Build a VEC instead of
        a chain of PARM_DECLs.
        (assign_parms_unsplit_complex): Take a VEC of arguments.
        Do not fixup unmodified parms.
        (assign_parms): Deal with the VEC.
        (gimplify_parameters): Likewise.

2010-01-17  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-uncprop.c (uncprop_into_successor_phis): Fix PHI
        node existence check.
        * tree-vect-loop.c (vect_analyze_loop_form): Likewise.
        * tree-cfgcleanup.c (merge_phi_nodes): Likewise.
        * tree-ssa-dce.c (forward_edge_to_pdom): Likewise.
        * tree-cfg.c (gimple_execute_on_growing_pred): Likewise.
        (gimple_execute_on_growing_pred): Likewise.

2010-01-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42773
        * tree-ssa-pre.c (phi_translate_set): Fix check for PHI node existence.
        (compute_antic_aux): Likewise.
        (compute_partial_antic_aux): Likewise.

2010-01-17  Jie Zhang  <jie.zhang@analog.com>

        PR debug/42767
        * dwarf2out.c (mem_loc_descriptor): Handle SS_TRUNCATE
        and US_TRUNCATE.

2010-01-17  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi (TARGET_INIT_LIBFUNCS): Put @findex entries in order of
        appearance.

        (TARGET_LEGITIMATE_ADDRESS_P): Add return type.
        Fix markup for strict argument.

        (TARGET_SCHED_REORDER2): Fix argument types.

        (TARGET_SCHED_DFA_PRE_CYCLE_INSN): Fix return type.
        (TARGET_SCHED_DFA_POST_CYCLE_INSN): Likewise.

        (TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE): Fix name.
        (TARGET_SCHED_DFA_POST_ADVANCE_CYCLE): Likewise.

        (TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD):
        Add argument name.

        (TARGET_SCHED_ALLOC_SCHED_CONTEXT): Remove duplicate documentation.
        (TARGET_SCHED_INIT_SCHED_CONTEXT): Likewise.
        (TARGET_SCHED_SET_SCHED_CONTEXT): Likewise.
        (TARGET_SCHED_CLEAR_SCHED_CONTEXT): Likewise.
        (TARGET_SCHED_FREE_SCHED_CONTEXT): Likewise.

        (TARGET_SCHED_SET_SCHED_CONTEXT): Fix typo.

        (TARGET_SCHED_GEN_SPEC_CHECK): Fix name.

        (TARGET_ASM_RELOC_RW_MASK): Add return type.
        (TARGET_MANGLE_DECL_ASSEMBLER_NAME): Fix return type.

        (TARGET_STRIP_NAME_ENCODING): Fix markup of return type and parameter.

        (TARGET_ASM_FILE_START): Put @findex before paragraph start.
        Use prototype.

        (TARGET_ASM_NAMED_SECTION): Fix argument list.

        (TARGET_HAVE_NAMED_SECTIONS): Use @deftypevr.
        (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Likewise.

        (TARGET_ASM_RECORD_GCC_SWITCHES_SECTION): Use @deftypevr.

        (TARGET_ASM_ASSEMBLE_VISIBILITY): Fix argument types.

        (TARGET_ASM_MARK_DECL_PRESERVED): Fix argument and markup
        referring to it.  Fix language.

        (TARGET_HAVE_CTORS_DTORS): Use @deftypevr.

        (TARGET_ASM_FINAL_POSTSCAN_INSN): Adjust name of first argument.

        (TARGET_ASM_EMIT_UNWIND_LABEL): Add argument types.

        (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Add type to argument.

        (TARGET_UNWIND_EMIT): Remove space between 'FILE *' and
        '@var{stream}.  Remove stray 'and'.

        (TARGET_ARM_EABI_UNWINDER): Use @deftypevr.

        (TARGET_ASM_OUTPUT_DWARF_DTPREL): Adjust name of first argument.

        (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Add missing article.

        (TARGET_OPTION_VALID_ATTRIBUTE_P): Fix name, it was
        misspelled as TARGET_VALID_OPTION_ATTRIBUTE_P.

        (TARGET_GET_PCH_VALIDITY): Put 'void *' in braces.
        Fix description of return value.
        Rename argument "sz" to "len."

        (TARGET_CXX_GUARD_MASK_BIT): Add missing article.
        Clarify meaning of 'true' return value.

        (TARGET_SHIFT_TRUNCATION_MASK): Fix return type.

        (TARGET_MODE_REP_EXTENDED): Fix two inconsisent uses of
        rep_mode versus mode_rep.

        (TARGET_HANDLE_PRAGMA_EXTERN_PREFIX): Document.

        (TARGET_BUILTIN_DECL): Fix name.

        (TARGET_COMMUTATIVE_P): Fix type of first argument.

        (TARGET_SET_CURRENT_FUNCTION): Mention possibility of cfun being NULL.

        (TARGET_BRANCH_TARGET_REGISTER_CLASS): Fix return type.

        (TARGET_USE_LOCAL_THUNK_ALIAS_P): Document as macro instead of hook.

        (TARGET_RELAXED_ORDERING): Use @deftypevr.

        (TARGET_GET_DRAP_RTX): Note that this is a hook.
        Clarify language.

        (TARGET_BUILTIN_RECIPROCAL): Fix argument types.
        Rename argument tm_fn to md_fn.

        (TARGET_OPTION_PRINT): Fix argument list.

2010-01-16  Harsha Jagasia  <harsha.jagasia@amd.com>

        PR target/42664
        * config/i386/i386.c (ix86_fixup_binary_operands):
        Revert FMA4 fixup of operands.

2010-01-16  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR gcc/42525
        * Makefile.in (write_entries_to_file, install-plugin):
        Use \012 instead of \n with tr.

2010-01-16  Richard Sandiford  <r.sandiford@uk.ibm.com>

        * configure.ac (HAVE_AS_REF): New C macro.
        * configure: Regenerate.
        * config.in: Likewise.
        * collect2.c (main): Only postpone SCAN_DWEH to the second pass
        if HAVE_AS_REF.
        * config/rs6000/aix.h (ASM_OUTPUT_DWARF_TABLE_REF): Only define
        if HAVE_AS_REF.

2010-01-16  Joern Rennecke  <amylaar@spamcop.net>

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

        (TARGET_SUPPORT_VECTOR_MISALIGNMENT): Fix argument types.

        (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Fix argument types.

        (TARGET_SCHED_ALLOC_SCHED_CONTEXT): Put 'void *' in braces.

        (TARGET_IN_SMALL_DATA_P): Fix argument type.

        (TARGET_BINDS_LOCAL_P): Fix argument type.

        (TARGET_ASM_FILE_END): Use prototype.

        (TARGET_ASM_RECORD_GCC_SWITCHES): Don't put 'int' in braces.

        (TARGET_DWARF_CALLING_CONVENTION): Fix argument type.

        (TARGET_COMP_TYPE_ATTRIBUTES): Fix argument types.

        (TARGET_VALID_DLLIMPORT_ATTRIBUTE_P): Fix argument type.

        (TARGET_EMUTLS_VAR_ALIGN_FIXED): Don't put 'bool' in braces.
        (TARGET_EMUTLS_DEBUG_FORM_TLS_ADDRESS): Likewise.

        (TARGET_PCH_VALID_P): Put 'const char *' in braces.
        (TARGET_CHECK_PCH_TARGET_FLAGS): Likewise.

        (TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Don't put 'bool' in braces.
        (TARGET_ADDR_SPACE_SUBSET_P): Likewise.
        (TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS): Don't put 'rtx' in braces.
        (TARGET_ADDR_SPACE_CONVERT): Likewise.

        (TARGET_CASE_VALUES_THRESHOLD): Put 'unsigned int' in braces.

        (TARGET_MACHINE_DEPENDENT_REORG: Use prototype.

        (TARGET_INIT_BUILTINS): Use prototype.

        (TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN):
        Put 'const char *' in braces.  Fix parameter types.
        (TARGET_INVALID_CONVERSION): Fix parameter types.
        (TARGET_INVALID_UNARY_OP, TARGET_INVALID_BINARY_OP): Likewise.
        (TARGET_INVALID_PARAMETER_TYPE, TARGET_INVALID_RETURN_TYPE): Likewise.

        (TARGET_PROMOTED_TYPE): Remove braces around 'tree'.
        Fix argument type.

        (TARGET_CONVERT_TO_TYPE): Remove braces around 'tree'.

        (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): Remove braces around 'bool'.

2010-01-15  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi (TARGET_HELP): Fix return type.

        (TARGET_PROMOTE_FUNCTION_MODE): Put 'enum machine_mode'
        in braces.  Fix argument types.

        (TARGET_LIBGCC_CMP_RETURN_MODE): Use prototype.

        (TARGET_LIBGCC_SHIFT_COUNT_MODE): Use prototype.

        (TARGET_MS_BITFIELD_LAYOUT_P): Fix argument type.

        (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Don't put 'bool' in braces.
        (TARGET_FIXED_POINT_SUPPORTED_P): Likewise.

        (TARGET_MANGLE_TYPE): Fix argument types.

        (TARGET_IRA_COVER_CLASSES): Use prototype.

        (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Fix return type.  Use prototype.

        (TARGET_CAN_ELIMINATE): Use identifiers for argument names.

        (TARGET_PROMOTE_PROTOTYPES): Fix argument type.

        (TARGET_MUST_PASS_IN_STACK): Fix argument type.

        (TARGET_CALLEE_COPIES): Fix argument types.

        (TARGET_SPLIT_COMPLEX_ARG): Fix argument type.

        (TARGET_GIMPLIFY_VA_ARG_EXPR): Fix argument types.

        (TARGET_FUNCTION_VALUE): Fix argument types.

        (TARGET_RETURN_IN_MSB): Fix argument type.

        (TARGET_RETURN_IN_MEMORY): Fix argument types.

        (TARGET_ASM_CAN_OUTPUT_MI_THUNK): Fix argument types.

        (TARGET_EXTRA_LIVE_ON_ENTRY): Fix argument type.

        (TARGET_STRICT_ARGUMENT_NAMING): Make literal in text
        agree with return type.

        (TARGET_PRETEND_OUTGOING_VARARGS_NAMED): Add Prototype.

2010-01-15  Jing Yu  <jingyu@google.com>

        PR rtl-optimization/42691
        * combine.c (try_combine): Set changed_i3_dest to 1 when I2 and I3 set
        a pseudo to a constant and are merged, and adjust comments.

2010-01-15  Eric Botcazou  <ebotcazou@adacore.com>

        * config/i386/sse.md (avx_vperm2f128<mode>3): Fix typo.

2010-01-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42739
        * tree-cfgcleanup.c (remove_forwarder_block): Move destination
        labels of computed or non-local gotos to the destination.
        * tree-cfg.c (gimple_verify_flow_info): Verify that a EH
        landing pad label is the first label.

2010-01-15  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-loop-im.c (gen_lsm_tmp_name): Fix bogus fallthru.

2010-01-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/42747
        * config/rs6000/rs6000.md (sqrtdf2): Split into expander and insn
        to allow generation of the xssqrtdp instruction on power7.
        (sqrtdf2_fpr): Ditto.

2010-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/42674
        * c-decl.c (finish_function): Don't emit -Wreturn-type warnings in
        functions with noreturn attribute.

        PR c++/42608
        * varasm.c (declare_weak): Add weak attribute to decl if it
        doesn't have one already.
        (assemble_external): Only add decls to weak_decls if they also
        have weak attribute.

2010-01-14  Alexandre Oliva  <aoliva@redhat.com>

        * var-tracking.c (var_reg_delete): Don't delete the association
        between REGs and values or one-part variables if the register
        isn't clobbered.

2010-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR debug/42657
        * tree-inline.c (copy_debug_stmt): Don't reset debug stmt just
        because its first operand is a non-localized variable.

2010-01-14  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42706
        * tree-sra.c (encountered_recursive_call): New variable.
        (encountered_unchangable_recursive_call): Likewise.
        (sra_initialize): Initialize both new variables.
        (callsite_has_enough_arguments_p): New function.
        (scan_function): Call decl and flags check only for IPA-SRA, check
        whether there is a recursive call and whether it has enough arguments.
        (all_callers_have_enough_arguments_p): New function.
        (convert_callers): Look for recursive calls only when
        encountered_recursive_call is set.
        (ipa_early_sra): Bail out either if
        !all_callers_have_enough_arguments_p or
        encountered_unchangable_recursive_call.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        * sel-sched.c: Add 2010 to copyright years.
        * sel-sched-ir.c: Likewise.
        * sel-sched-ir.h: Likewise.

2010-01-14  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42714
        * tree-sra.c (sra_ipa_modify_assign): Handle incompatible-type
        constructors specially.

2010-01-14  Andi Kleen  <ak@linux.intel.com>

        * config/i386/drivers-i386.c (detect_caches_intel):
        Add l2sizekb parameter and fill in.
        (host_detect_local_cpu): Add l2sizekb, fill in.
        Add Atom small cache heuristic.

2010-01-14  Andi Kleen  <ak@linux.intel.com>

        * config/i386/drivers-i386.c (detect_caches_cpuid4):
        Add level3 parameter and fill in.
        (detect_caches_intel): Handle level3 cache.

2010-01-14  Andi Kleen  <ak@linux.intel.com>

        * config/i386/drivers-i386.c (host_detect_local_cpu):
        Fix core duo detection.

2010-01-14  Andi Kleen  <ak@linux.intel.com>

        * config/i386/drivers-i386.c (host_detect_local_cpu):
        Fix Atom detection.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        * config/rs6000/rs6000.c (rs6000_variable_issue): Rename to...
        (rs6000_variable_issue_1): this.  Use...
        (rs6000_variable_issue): here.  Reimplement.  Print debug info.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        * sel-sched-ir.c (sel_restore_other_notes): Rename to
        sel_restore_notes.  Update all callers.  Call reemit_notes
        for all insns.

2010-01-14  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/42246
        * sel-sched-ir.h (get_all_loop_exits): Include exits from inner
        loops.

2010-01-14  Andrey Belevantsev  <abel@ispras.ru>

        * sel-sched.c (compute_av_set_at_bb_end): Do not test that number of
        all successors is the same as number of successors in current region.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        * sel-sched.c (maybe_emit_renaming_copy): Exit early when expression
        to rename is not separable.  Otherwise check that its LHS is not NULL.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        * sel-sched.c (choose_best_reg_1):  Loop over all regs for mode.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        * sel-sched.c (mark_unavailable_hard_regs): Do not try to search
        available registers when failed to discover LHS register class.
        Fix indentation.  Update comment.

2010-01-14  Andrey Belevantsev  <abel@ispras.ru>
            Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/42389
        * sel-sched.c (advance_one_cycle): Set FENCE_ISSUE_MORE
        to can_issue_more.
        (advance_state_on_fence): Likewise.
        (sel_target_adjust_priority): Print debug output only when
        sched_verbose >= 4, not 2.
        (get_expr_cost): Do not issue all unique insns on the next cycle.
        (fill_insns): Initialize can_issue_more from the value saved
        with the fence.
        * sel-sched-ir.c (flist_add): New parameter issue_more.
        Init FENCE_ISSUE_MORE with it.
        (merge_fences): Likewise.
        (init_fences): Update call to flist_add.
        (add_to_fences, add_clean_fence_to_fences)
        (add_dirty_fence_to_fences): Likewise.
        (move_fence_to_fences): Update call to merge_fences.
        (invoke_reorder_hooks): Do not reset can_issue_more on insns from
        sched groups.
        * sel-sched-ir.h (struct _fence): New field issue_more.
        (FENCE_ISSUE_MORE): New accessor macro.

2010-01-14  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/42388
        * sel-sched-ir.c (maybe_tidy_empty_bb): Do not delete empty blocks
        that have no predecessors nor successors.  Do not call move_bb_info
        for empty blocks outside of current region.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/42294
        * sel-sched-ir.h (struct _sel_insn_data): Update comment.
        * sel-sched.c (move_exprs_to_boundary): Transitively add all
        originators' originators.

2010-01-14  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/39453
        PR rtl-optimization/42246
        * sel-sched-ir.c (considered_for_pipelining_p): Do not test
        for pipelining_p.
        (sel_add_loop_preheaders): Add preheader to last_added_blocks.

2010-01-14  Andrey Belevantsev  <abel@ispras.ru>
            Alexander Monakov  <amonakov@ispras.ru>

        PR middle-end/42245
        * sel-sched-ir.c (sel_recompute_toporder): New.  Use it...
        (maybe_tidy_empty_bb): ... here.  Make static.  Add new
        argument.  Update all callers.
        (tidy_control_flow): ... and here.  Recompute topological order
        of basic blocks in region if necessary.
        (sel_redirect_edge_and_branch): Change return type.  Return true
        if topological order might have been invalidated.
        (purge_empty_blocks): Export and move from...
        * sel-sched.c (purge_empty_blocks): ... here.
        * sel-sched-ir.h (sel_redirect_edge_and_branch): Update prototype.
        (maybe_tidy_empty_bb): Delete prototype.
        (purge_empty_blocks): Declare.

2010-01-14  Andrey Belevantsev <abel@ispras.ru>

        PR rtl-optimization/42249
        * sel-sched.c (try_replace_dest_reg): When chosen register
        and original register is the same, do not bail out early, but
        still check all original insns for validity of replacing destination
        register.  Set EXPR_TARGET_AVAILABLE to 1 before leaving function
        in this case.

2010-01-14  Jakub Jelinek  <jakub@redhat.com>

        PR c/42721
        Port from no-undefined-overflow branch:
        2009-03-09  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (add_double_with_sign): Fix unsigned overflow detection.

2010-01-14  Richard Guenther  <rguenther@suse.de>

        PR lto/42665
        * gimple.c (iterative_hash_gimple_type): Avoid hashing error_mark_node.

2010-01-14  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/42709
        * tree-vect-slp.c (vect_get_constant_vectors): Use constant's type
        as scalar type in creation of constant vector operand.

2010-01-14  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        PR testsuite/42414
        * Makefile.in ($(TESTSUITEDIR)/site.exp, check-%)
        (check-parallel-%): Match `testsuite' directory component only
        at the end.

2010-01-14  Shujing Zhao  <pearly.zhao@oracle.com>

        PR translation/39521
        * gcc.c (do_spec_1): Wrapped the error and notice messages of specs
        strings with _().

2010-01-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42730
        * tree-ssa-ccp.c (maybe_fold_stmt_indirect): Add shortcut for
        offset zero.

2010-01-13  Steve Ellcey  <sje@cup.hp.com>

        PR target/pr42542
        * config/ia64/ia64.c (ia64_expand_vecint_compare): Convert GTU to GT
        for V2SI by subtracting (-(INT MAX) - 1) from both operands to make
        them signed.

2010-01-13  Bernd Schmidt  <bernd.schmidt@analog.com>

        * config/bfin/libgcc-bfin.ver: Regenerate based on current
        libgcc-std.ver.  Add entries for ___smulsi3_highpart and
        ___umulsi3_highpart.

        * config/bfin/bfin.c (bfin_reorg): Call run_selective_scheduling
        rather than schedule_insns if the pass is enabled.

2010-01-13  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42704
        * tree-sra.c (sra_modify_assign): Do not delete assignments to
        SSA_NAMEs.

2010-01-13  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42703
        * tree-sra.c (analyze_access_subtree): Check that we can build a
        reference to the original data within the aggregate.

2010-01-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42705
        * tree-ssa-reassoc.c (build_and_add_sum): Insert stmts after labels.

2010-01-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42716
        * fold-const.c (fold_unary_loc): Fold INDIRECT_REFs.

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.

2010-01-13  Wolfgang Gellerich  <gellerich@de.ibm.com>

        * config/s390/s390.c (override_options): Set
        default of max-pending-list-length to 256

2010-01-13  Richard Guenther  <rguenther@suse.de>

        PR lto/42678
        * tree-pass.h (PROP_gimple_lcx): New.
        * cfgexpand.c (pass_expand): Require PROP_gimple_lcx.
        * passes.c (init_optimization_passes): Move pass_lower_complex_O0
        before the final cleanup_eh.
        (dump_properties): Dump PROP_gimple_lcx.
        * tree-complex.c (pass_lower_complex): Provide PROP_gimple_lcx.
        (tree_lower_complex_O0): Remove.
        (gate_no_optimization): Run if PROP_gimple_lcx is not set.
        (pass_lower_complex_O0): Provide PROP_gimple_lcx.  Run
        tree_lower_complex, schedule TODO_update_ssa.
        * lto-streamer-out.c (output_function): Stream the functions
        properties.
        * lto-streamer-in.c (input_function): Likewise.
        (lto_read_body): Do not override them here.

2010-01-12  Joseph Myers  <joseph@codesourcery.com>

        PR c/42708
        * c-typeck.c (build_c_cast): Fold value cast to union type before
        wrapping it in a CONSTRUCTOR.

2010-01-12  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/42699
        * cse.c (cse_insn): Optimize lhs ZERO_EXTRACT if only CONST_INTs are
        involved.

2010-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/mips/iris6.h (SUBTARGET_DONT_WARN_UNUSED_SPEC,
        SUBTARGET_WARN_UNUSED_SPEC): Move ...
        config/mips/iris.h (SUBTARGET_DONT_WARN_UNUSED_SPEC,
        SUBTARGET_WARN_UNUSED_SPEC): ... here
        * config/mips/iris5.h (LIBGCC_SPEC): Define.

2010-01-12  Julian Brown  <julian@codesourcery.com>

        * config/arm/neon-schedgen.ml (Utils): Don't try to
        open missing module.
        (find_with_result): New.

2010-01-12  Jakub Jelinek  <jakub@redhat.com>

        PR debug/42662
        * simplify-rtx.c (simplify_relational_operation_1): Avoid invalid rtx
        sharing when canonicalizing ({lt,ge}u (plus a b) b).

        PR tree-optimization/42645
        * tree-inline.c (processing_debug_stmt): Move earlier.  Make static.
        (remap_ssa_name): If processing_debug_stmt and name wasn't found in
        decl_map, set processing_debug_stmt to -1 and return name without
        any remapping.

2010-01-11  Dave Korn  <dave.korn.cygwin@gmail.com>

        * doc/install.texi (Specific#x-x-cygwin): Document minimum required
        binutils version, and reword target configuration description.

2010-01-11  Andy Hutchinson  <hutchinsonandy@gcc.gnu.org>

        * config/avr/avr.h (LINKER_NAME): Remove.

2010-01-11  Janis Johnson  <janis187@us.ibm.com>

        PR target/42416
        * config/rs6000/rs6000.c (rs6000_override_options): On targets
        that support VSX, warn for -mno-altivec if vsx is not disabled,
        and disable vsx.

2010-01-11  Joseph Myers  <joseph@codesourcery.com>
            Shujing Zhao  <pearly.zhao@oracle.com>

        PR translation/42469
        * common.opt (Wframe-larger-than=, fcompare-debug=, fdbg-cnt=,
        fira-verbose=, flto-compression-level=, fplugin-arg-): Use tab
        character between option name and help text.
        * c.opt (imultilib): Likewise.

2010-01-10  Rafael Avila de Espindola  <espindola@google.com>

        * lto-streamer-out.c (output_unreferenced_globals): Output static
        variables.

2010-01-10  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/42621
        * bb-reorder.c (gate_duplicated_computed_gotos): Only run if not
        optimizing for size.
        (duplicate_computed_gotos): Remove now-redundant check.

2010-01-10  Steve Ellcey  <sje@cup.hp.com>

        PR target/37454
        * configure.ac: Save and restore LDFLAGS and LIBS
        * configure: Regenerate.

2010-01-10  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42667
        * builtins.c (fold_builtin_strlen): Add type argument and
        convert the resulting length to it.
        (fold_builtin_1): Adjust.

2010-01-09  Jakub Jelinek  <jakub@redhat.com>

        * config/rs6000/rs6000.c (rs6000_emit_set_long_const): Shorten
        sequence for DImode constants >= 0x80000000UL <= 0xFFFFFFFFUL by
        1 insn.
        (num_insns_constant_wide): Adjust for that change.

2010-01-09  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42631
        * web.c (union_defs): Add used argument, to combine uses of
        uninitialized regs.
        (entry_register): Adjust type and tests of used argument.
        (web_main): Widen used for new use.  Pass it to union_defs.
        * df.h (union_defs): Adjust prototype.

2010-01-09  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42630
        * loop-unroll.c (referenced_in_one_insn_in_loop_p): Count debug
        uses in new incoming argument.  Free body.
        (reset_debug_uses_in_loop): New.
        (analyze_insn_to_expand_var): Call the latter if the former found
        anything.  Fix whitespace.  Reject invalid dest overlaps before
        going through all insns in the loop.

2010-01-09  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42629
        * haifa-sched.c (dying_use_p): Debug insns don't count.

2010-01-09  Alexandre Oliva  <aoliva@redhat.com>

        PR middle-end/42363
        * gimplify.c (gimplify_modify_expr): Drop lhs on noreturn calls.
        * tree-cfg.c (is_ctrl_altering_stmt): Don't compute flags twice.
        (verify_gimple_call): Reject LHS in noreturn calls.

2010-01-09  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/42604
        PR debug/42395
        * tree-vect-loop-manip.c (adjust_info): New type.
        (adjust_vec): New pointer to vector.
        (adjust_debug_stmts_now, adjust_vec_debug_stmts): New.
        (adjust_debug_stmts, adjust_phi_and_debug_stmts): New.
        (slpeel_update_phis_for_duplicate_loop): Use them.
        (slpeel_update_phi_nodes_for_guard1): Likewise.
        (slpeel_update_phi_nodes_for_guard2): Likewise.
        (slpeel_tree_peel_loop_to_edge): Likewise.
        (vect_update_ivs_after_vectorizer): Likewise.

2010-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * vec.h (DEF_VEC_ALLOC_FUNC_O_STACK): Drop excess paren.
        (DEF_VEC_ALLOC_FUNC_I_STACK): Likewise.

2010-01-09  Alexandre Oliva  <aoliva@redhat.com>

        * config/i386/i386.c (ix86_vectorize_builtin_vec_perm): Silence
        bogus uninitialized warning.

2010-01-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42512
        * tree-scalar-evolution.c (interpret_loop_phi): Make sure
        the evolution is compatible with the initial condition.

2010-01-09  Jakub Jelinek  <jakub@redhat.com>

        * gcc.c (process_command): Update copyright notice dates.
        * gcov.c (print_version): Likewise.
        * gcov-dump.c (print_version): Likewise.
        * mips-tfile.c (main): Likewise.
        * mips-tdump.c (main): Likewise.

2010-01-08  Andy Hutchinson  <hutchinsonandy@gcc.gnu.org>

        PR target/41885
        * config/avr/avr.md (rotlqi3): Add CONST_INT_P check.
        (rotlhi3): Delete.
        (rotlhi3_8): Delete.
        (rotlsi3): Delete.
        (rotlsi3_8): Delete.
        (rotlsi3_16): Delete.
        (rotlsi3_24): Delete.
        (rotl<mode>3): New.
        (*rotw<mode>3): New.
        (*rotb<mode>3): New.
        * config/avr/avr.c (avr_rotate_bytes): New function.
        * config/avr/avr-proto.h (avr_rotate_bytes): New function.

2010-01-08  Steve Ellcey  <sje@cup.hp.com>

        PR target/37454
        * configure.ac: Modify -rdynamic check.
        * configure: Regenerate.

2010-01-08  DJ Delorie  <dj@redhat.com>

        * config/sh/sh.c (sh_expand_epilogue): Fix interrupt handler
        register popping order.

2010-01-08  Richard Guenther  <rguenther@suse.de>

        PR lto/42528
        * c.opt (fsigned-char): Also let LTO handle this option.
        (funsigned-char): Likewise.

2010-01-07  Richard Guenther  <rguenther@suse.de>

        * gimple.h (gss_for_code): Wrap gcc_assert in ENABLE_CHECKING.
        (gimple_op): Likewise.
        (gimple_op_ptr): Likewise.
        (gimple_assign_set_lhs): Remove gcc_assert.
        (gimple_assign_set_rhs1): Likewise.
        (gimple_assign_set_rhs2): Likewise.
        (gimple_call_set_lhs): Likewise.
        (gimple_call_set_fn): Likewise.
        (gimple_call_set_fndecl): Likewise.
        (gimple_call_fndecl): Likewise.
        (gimple_call_return_type): Likewise.
        (gimple_call_set_chain): Likewise.
        (gimple_call_num_args): Likewise.
        (gimple_call_set_arg): Likewise.
        (gimple_cond_set_code): Likewise.
        (gimple_cond_set_lhs): Likewise.
        (gimple_cond_set_rhs): Likewise.
        (gimple_cond_set_true_label): Likewise.
        (gimple_cond_set_false_label): Likewise.
        (gimple_label_set_label): Likewise.
        (gimple_goto_set_dest): Likewise.
        (gimple_debug_bind_get_var): Wrap gcc_assert in ENABLE_CHECKING.
        (gimple_debug_bind_get_value): Likewise.
        (gimple_debug_bind_get_value_ptr): Likewise.
        (gimple_debug_bind_set_var): Likewise.
        (gimple_debug_bind_set_value): Likewise.
        (gimple_debug_bind_reset_value): Likewise.
        (gimple_debug_bind_has_value_p): Likewise.
        (gimple_return_retval_ptr): Remove gcc_assert.
        (gimple_return_retval): Likewise.
        (gimple_return_set_retval): Likewise.
        * tree-flow.h (struct gimple_df): Remove nonlocal_all member.
        (safe_referenced_var_iterator): Remove.
        (FOR_EACH_REFERENCED_VAR_SAFE): Likewise.
        * tree-flow-inline.h (gimple_nonlocal_all): Remove.
        (fill_referenced_var_vec): Remove.
        (first_readonly_imm_use): Remove redundant gcc_assert.
        (phi_arg_index_from_use): Combine gcc_asserts.
        (move_use_after_head): Wrap gcc_assert in ENABLE_CHECKING.
        (first_imm_use_stmt): Remove redundant gcc_assert.
        * tree-cfg.c (verify_gimple_call): Verify function and chain
        operands.  Verify arguments.
        (verify_types_in_gimple_stmt): Verify condition code and labels.

2010-01-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42641
        * sese.c (rename_map_elt_info): Use the SSA name version, do
        not hash pointers.

2010-01-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/42625
        * cgraph.c (cgraph_make_node_local): Clear DECL_COMDAT*,
        TREE_PUBLIC, DECL_WEAK and DECL_EXTERNAL also for same_body aliases.

2010-01-07  Duncan Sands  <baldrick@free.fr>

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

2010-01-07  Uros Bizjak  <ubizjak@gmail.com>

        PR target/42511
        * ifcvt.c (dead_or_predicable): Also remove REG_EQUAL note when
        note itself is not function_invariant_p.

2009-01-07  Steven Bosscher  <steven@gcc.gnu.org>

        * gcse.c (execute_rtl_cprop, execute_rtl_pre, execute_rtl_hoist):
        Do not add the DF_NOTE problem.
        * store-motion.c (execute_rtl_store_motion): Likewise.

2010-01-07  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42157
        * tree-sra.c (compare_access_positions): Stabilize sort if both
        accesses have integer types, return zero immediately if they are the
        same.

2010-01-06  Richard Henderson  <rth@redhat.com>

        PR middle-end/41883
        * haifa-sched.c (add_to_note_list): Merge into ...
        (concat_note_lists): ... here, and ...
        (unlink_other_notes, rm_other_notes): Merge into...
        (remove_notes): ... here.  Create REG_SAVE_NOTEs for
        NOTE_INSN_EPILOGUE_BEG.

2010-01-06  Richard Guenther  <rguenther@suse.de>

        * ipa-inline.c (cgraph_decide_inlining_incrementally): Do
        not inline regular functions into always-inline functions.

2010-01-06  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.h (enum rx_cpu_type): Add RX200.
        (CC1_SPEC): Issue an error message if -mcpu=rx200 and -fpu are
        used together.
        (OVERRIDE_OPTIONS): Delete.
        (OPTIMIZATION_OPTIONS): Define.
        (ALLOW_RX_FPU_INSNS): Define only in terms of -fpu option.
        * config/rx/rx.c (rx_handle_option): Issue an error message if
        -mcpu=rx200 and -fpu are used together.
        (rx_set_optimization_options): New function.  Issue an error
        message if an optimization attribute attempts to reset the FPU/
        math optimization pairing.
        * config/rx/rx-protos.h (rx_set_optimization_options): Prototype.
        * config/rx/rx.opt: Set the default to 32-bit doubles.
        * config/rx/t-rx: Add multilibs for -nofpu option.
        * doc/invoke.texi: Update documentation of RX options.

2010-01-06  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (name_to_id): New global.
        (alloc_expression_id): Simplify SSA name handling.
        (lookup_expression_id): Likewise.
        (init_pre): Zero name_to_id.
        (fini_pre): Free it.

2010-01-06  Uros Bizjak  <ubizjak@gmail.com>

        * ifcvt.c (if_convert): Output slim multiple dumps with TDF_SLIM.

2010-01-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/42542
        * config/i386/sse.md (smaxv2di3): New.
        (umaxv2di3): Likewise.
        (sminv2di3): Likewise.
        (uminv2di3): Likewise.

2010-01-05  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/42564
        * config/sparc/sparc.h (SPARC_SYMBOL_REF_TLS_P): Delete.
        * config/sparc/sparc-protos.h (legitimize_pic_address): Likewise.
        (legitimize_tls_address): Likewise.
        (sparc_tls_referenced_p): Likewise.
        * config/sparc/sparc.c (sparc_expand_move): Use legitimize_tls_address
        and adjust calls to legitimize_pic_address.
        (legitimate_constant_p) Use sparc_tls_referenced_p.
        (legitimate_pic_operand_p): Likewise.
        (sparc_legitimate_address_p): Do not use SPARC_SYMBOL_REF_TLS_P.
        (sparc_tls_symbol_ref_1): Delete.
        (sparc_tls_referenced_p): Make static, recognize specific patterns.
        (legitimize_tls_address): Make static, handle CONST patterns.
        (legitimize_pic_address): Make static, remove unused parameter and
        adjust recursive calls.
        (sparc_legitimize_address): Make static, use sparc_tls_referenced_p
        and adjust call to legitimize_pic_address.
        (sparc_output_mi_thunk): Likewise.

2010-01-05  Paolo Bonzini  <bonzini@gnu.rg>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/42542
        * config/i386/i386.c (ix86_expand_int_vcond): Convert GTU to GT
        for V4SI and V2DI by subtracting (-(INT MAX) - 1) from both
        operands to make them signed.

        Revert:
        2010-01-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/42542
        * config/i386/i386.c (ix86_expand_int_vcond): Don't convert
        GTU to GT for V4SI and V2DI.

        * config/i386/sse.md (umaxv4si3): Enabled for SSE4.1 and XOP.
        (umin<mode>3): Removed.
        (uminv8hi3): New.
        (uminv4si3): Likewise.

2010-01-05  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42462
        * ipa-inline.c (compute_inline_parameters): Pass node->decl instead of
        current_function_decl to helper functions and macros.

2010-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR bootstrap/41771
        * flags.h: Don't include real.h.
        (HONOR_NANS, HONOR_SNANS, HONOR_INFINITIES, HONOR_SIGNED_ZEROS,
        HONOR_SIGN_DEPENDENT_ROUNDING): Move ...
        * real.h (HONOR_NANS, HONOR_SNANS, HONOR_INFINITIES,
        HONOR_SIGNED_ZEROS, HONOR_SIGN_DEPENDENT_ROUNDING): ... here.
        * dominance.c: Update copyright.
        * gimple.c (walk_gimple_op): Remove inline.
        * tree-ssa-reassoc.c: Include real.h.
        * Makefile.in (FLAGS_H): Remove $(REAL_H).
        (tree-ssa-reassoc.o): Depend on $(REAL_H).

2010-01-05  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.c (rx_get_stack_layout): Fix allocation of second
        register to push into the stack frame when the accumulator has to
        be saved during interrupts.

2010-01-05  Eric Fisher  <joefoxreal@gmail.com>

        * doc/invoke.texi: Remove the documentation about option
        -Wunreachable-code.
        * common.opt (Wunreachable-code):  Preserved for backward
        compatibility.
        * tree-cfg.c: Remove the implementation of -Wunreachable-code.
        * opts.c (common_handle_option): Add OPT_Wunreachable_code to
        the backward compatibility flag section.

2010-01-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (bitmap_value_insert_into_set): Optimize.

2010-01-05  Jakub Jelinek  <jakub@redhat.com>

        PR other/42611
        * cfgexpand.c (expand_one_var): Diagnose too large variables.

        PR tree-optimization/42508
        * tree-sra.c (convert_callers): Check for recursive call
        by comparing cgraph nodes instead of decls.
        (modify_function): Call ipa_modify_formal_parameters also
        on all same_body aliases.

        * cgraphunit.c (cgraph_materialize_all_clones): Compare
        cgraph nodes when checking for same_body aliases.

2010-01-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-pre.c (get_or_alloc_expr_for_name): Avoid redundant
        allocation and lookup.
        (get_or_alloc_expr_for_constant): Likewise.
        (phi_translate): Sink allocation.

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

        * tree-ssa-sccvn.c (get_or_alloc_constant_value_id): Allocate
        a new entry only if needed.
        * tree-ssa-dom.c (lookup_avail_expr): Likewise.
        * tree-ssa-coalesce.c (find_coalesce_pair): Avoid one
        hashtable lookup.
        * tree-ssa-pre.c (sorted_array_from_bitmap_set): Pre-allocate
        the result array.
        (phi_translate): Handle CONSTANTs early.

2010-01-04  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42398
        * tree-sra.c (struct access): Removed flag grp_different_types.
        (dump_access): Do not dump the removed flag.
        (sort_and_splice_var_accesses): Do not set the removed flag.
        (sra_modify_expr): Check for type compatibility directly.

2010-01-04  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42366
        * ipa-cp.c (ipcp_init_stage): Always call ipa_compute_jump_functions on
        edges with variable number of parameters.
        * ipa-prop.c (ipa_write_node_info): Stream out uses_analysis_done
        flag instead of asserting it.
        (ipa_read_node_info): Read uses_analysis_done flag.

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

        * tree-ssa-sccvn.c (vn_reference_op_compute_hash): Use
        iterative_hash_* as intended.
        (vn_reference_compute_hash): Likewise.  Simplify hashing
        SSA names.
        (vn_reference_lookup_2): Likewise.
        (vn_nary_op_compute_hash): Likewise.
        (vn_phi_compute_hash): Likewise.
        (expressions_equal_p): Remove strange code.
        * tree-ssa-pre.c (pre_expr_eq): Use gcc_unreachable ().
        (pre_expr_hash): Likewise.  Simplify hashing SSA names.
        (bitmap_insert_into_set_1): Take value-id as parameter.
        (add_to_value): Pass it.
        (bitmap_insert_into_set): Likewise.
        (bitmap_value_insert_into_set): Likewise.  Remove redundant check.

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

        PR driver/42442
        * gcc.c (SWITCH_IGNORE_PERMANENTLY): Define.
        (do_self_spec): For switches with SWITCH_IGNORE set set also
        SWITCH_IGNORE_PERMANENTLY.
        (check_live_switch): Check SWITCH_IGNORE_PERMANENTLY instead
        of SWITCH_IGNORE.

2010-01-04  Rafael Avila de Espindola  <espindola@google.com>

        * lto-streamer-out.c (output_unreferenced_globals): Output the full
        tree of an unreferenced global var.

2010-01-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/42542
        * config/i386/i386.c (ix86_expand_int_vcond): Don't convert
        GTU to GT for V4SI and V2DI.

        * config/i386/sse.md (umaxv4si3): Enabled for SSE4.1 and XOP.
        (umin<mode>3): Removed.
        (uminv8hi3): New.
        (uminv4si3): Likewise.

2010-01-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR lto/42581
        * collect2.c (main): Turn on trace in collect2 if -v is passed
        to gcc with LTO.

2010-01-03  Jerry Quinn  <jlquinn@optonline.net>

        * doc/c-tree.texi (RETURN_STMT): Change to RETURN_EXPR.  Update
        description of expression operand.

2010-01-03  Andrew Jenner  <andrew@codesourcery.com>

        * configure.ac: Add install-html to target_list for Make-hooks.
        * configure: Regenerate.
        * fortran/Make-lang.in (F95_HTMLFILES): New.
        (fortran.html): Use it.
        (fortran.install-html): New.
        * Makefile.in (install-html): Add lang.install-html.
        * java/Make-lang.in (JAVA_HTMLFILES): New.
        (java.html): Use it.
        (java.install-html): New.
        * objc/Make-lang.in (objc.install-html): New.
        * objcp/Make-lang.in (obj-c++.install-html): New.
        * cp/Make-lang.in (c++.install-html): New.
        * ada/gcc-interface/Make-lang.in (ada.install-html): New.
        * lto/Make-lang.in (lto.install-html): New.

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

        PR lto/42520
        * gcc.c (LINK_COMMAND_SPEC): Pass -m* and -v to -plugin-opt.

2009-01-03  Steven Bosscher  <steven@gcc.gnu.org>

        PR rtl-optimization/41862
        * store-motion.c (store_killed_in_insn, compute_store_table,
        remove_reachable_equiv_notes, replace_store_insn,
        build_store_vectors): Ignore all DEBUG_INSNs.

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

        PR lto/41564
        * common.opt: Add dumpdir.

        * gcc.c (cc1_options): Add "-dumpbase %B" only if -dumpbase
        isn't specified.
        (option_map): Add --dumpdir.

        * gcc.h (DEFAULT_WORD_SWITCH_TAKES_ARG): Add dumpdir.

        * lto-wrapper.c (run_gcc): Add -dumpbase and -dumpdir for -o.

        * opts.c (decode_options): Try dump_dir_name first if
        dump_base_name isn't an absolute path.
        (common_handle_option): Handle OPT_dumpdir.

        * toplev.c (dump_dir_name): New.
        (print_switch_values): Also ignore -dumpdir.

        * toplev.h (dump_dir_name): New.

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

        PR tree-optimization/42589
        * tree-ssa-math-opts.c (execute_optimize_bswap): Allow
        double-word expansion of bswap32.

2010-01-03  Steven Bosscher  <steven@gcc.gnu.org>

        * postreload-gcse.c (insert_expr_in_table): Replace BLOCK_NUM
        with BLOCK_FOR_INSN.
        * auto-inc-dec.c (attempt_change, get_next_ref, find_inc): Likewise.
        * ifcvt.c (noce_get_alt_condition, noce_try_abs,
        noce_process_if_block): Likewise.
        * gcse.c (compute_local_properties, insert_expr_in_table,
        insert_set_in_table, canon_list_insert, find_avail_set,
        pre_insert_copy_insn): Likewise.

        * basic-block.h (BLOCK_NUM): Move from here...
        * sched-int.h (BLOCK_NUM): ... to here to localize it in the scheduler.

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

        PR tree-optimization/42438
        * tree-ssa-pre.c (struct bb_bitmap_sets): Add
        contains_may_not_return_call flag.
        (BB_MAY_NOTRETURN): New.
        (valid_in_sets): Trapping nary operations are not valid
        in blocks that may not return.
        (insert_into_preds_of_block): Remove check for trapping expressions.
        (compute_avail): Compute also BB_MAY_NOTRETURN.

2010-01-03  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/invoke.texi: Add 2010 to copyright years.

2010-01-03  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c: Fix formatting nits.

2010-01-02  Gerald Pfeifer  <gerald@pfeifer.com>
            Alexander Monakov  <amonakov@ispras.ru>

        * doc/invoke.texi (Optimize Options): Reword introduction a bit.

2010-01-02  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42577
        * tree-vrp.c (check_all_array_refs): Skip non-excutable blocks.
        (simplify_switch_using_ranges): Mark to be removed edges
        as non-executable.

2010-01-02  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config/pa/t-slibgcc-dwarf-ver (SHLIB_SOVERSION): Bump by two.

        * collect2.c (scan_libraries): Add missing argument in call to
        scan_prog_file.

2010-01-02  Uros Bizjak  <ubizjak@gmail.com>

        PR target/42448
        * config/alpha/predicates.md (aligned_memory_operand): Return false
        for CQImode.
        (unaligned_memory_operand): Return true for CQImode.
        * config/alpha/alpha.c (get_aligned_mem): Assert that location
        doesn not cross aligned SImode word boundary.

2010-01-02  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.h (REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P, XEXP_):
        Remove.
        * config/avr/avr-protos.h (avr_init_once, avr_optimization_options,
        avr_change_section, avr_reg_class_from_letter) : Remove declaration.

2010-01-02  Richard Guenther  <rguenther@suse.de>

        PR lto/41597
        * toplev.c (compile_file): Emit LTO marker properly.  Change
        it to __gnu_lto_v1.
        * collect2.c (scan_prog_file): Adjust for changed LTO marker.

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

        PR debug/42455
        * tree-sra.c (analyze_all_variable_accesses): Work in DECL_UID order.

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

        PR c/42570
        * c-decl.c (grokdeclarator): For zero-size arrays force
        structural equality checks as layout_type does.

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

        * builtins.c: Update copyright to 2010.

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

        PR lto/42531
        * lto-streamer-out.c (produce_asm): Revert the last change.
        (copy_function): Likewise.

        * lto-streamer.c (lto_get_section_name): Skip any leading
        asterisk in name.

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

        PR middle-end/42559
        * builtins.c (get_object_alignment): Do not use DECL_ALIGN
        for LABEL_DECLs.

\f
Copyright (C) 2010 Free Software Foundation, Inc.

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