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

2011-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config.gcc: Obsolete *-*-solaris2.8*.
        * doc/install.texi (Specific, *-*-solaris2*): Document it.

2011-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR bootstrap/48135
        * doc/install.texi (Prerequisites, Perl): Remove Glob.pm
        reference.  Solaris 8 perl works.

2011-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR bootstrap/48135
        * doc/install.texi (Prerequisites): Move jar etc. up.
        Explain support library version requirements.

2011-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR bootstrap/48135
        * doc/install.texi (Prerequisites): Move Perl to build
        requirements.  Always necessary on Solaris 2 with Sun ld.

2011-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/install.texi (Specific, alpha*-dec-osf5.1): Update for
        binutils 2.21.
        (Specific, i?86-*-solaris2.[89]): Likewise.
        (Specific, i?86-*-solaris2.10): Likewise.
        (Specific, mips-sgi-irix6): Likewise.
        (Specific, *-*-solaris2*): Remove Sun Studio download URL.
        Update for binutils 2.21.

2011-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_lto_plugin): Fix typo.
        Allow -fuse-linker-plugin for non-default plugin linker.
        * configure: Regenerate.

2011-03-21  Nicola Pero  <nicola.pero@meta-innovation.com>

        PR bootstrap/48167
        * gengtype.c (files_rules): Added rule for cp/parser.h.

2011-03-21  Jakub Jelinek  <jakub@redhat.com>

        PR target/48213
        * config/s390/s390.c (s390_delegitimize_address): Don't call
        lowpart_subreg if orig_x has BLKmode.

2011-03-21  Kai Tietz  <ktietz@redhat.com>

        PR target/12171
        * doc/plugins.texi: Adjust documentation
        for plugin register_callback.
        * tree.h (attribute_spec): Add new member
        affects_type_identity.
        - Zitierten Text anzeigen -
        * attribs.c (empty_attribute_table): Adjust
        attribute_spec initializers.
        * config/alpha/alpha.c: Likewise.
        * config/arc/arc.c: Likewise.
        * config/arm/arm.c: Likewise.
        * config/avr/avr.c: Likewise.
        * config/bfin/bfin.c: Likewise.
        * config/crx/crx.c: Likewise.
        * config/darwin.h: Likewise.
        * config/h8300/h8300.c: Likewise.
        * config/i386/cygming.h: Likewise.
        * config/i386/i386.c: Likewise.
        * config/ia64/ia64.c: Likewise.
        * config/m32c/m32c.c: Likewise.
        * config/m32r/m32r.c: Likewise.
        * config/m68hc11/m68hc11.c: Likewise.
        * config/m68k/m68k.c: Likewise.
        * config/mcore/mcore.c: Likewise.
        * config/mep/mep.c: Likewise.
        * config/microblaze/microblaze.c: Likewise.
        * config/mips/mips.c: Likewise.
        * config/rs6000/rs6000.c: Likewise.
        * config/rx/rx.c: Likewise.
        * config/sh/sh.c: Likewise.
        * config/sol2.h: Likewise.
        * config/sparc/sparc.c: Likewise.
        * config/spu/spu.c: Likewise.
        * config/stormy16/stormy16.c: Likewise.
        * config/v850/v850.c: Likewise.

2011-03-21  Chung-Lin Tang  <cltang@codesourcery.com>

        * simplify-rtx.c (simplify_binary_operation_1): Handle
        (xor (and A B) C) case when B and C are both constants.

2011-03-21  Mingjie Xing  <mingjie.xing@gmail.com>

        * tree-dfa.c (add_referenced_var): Fix typo in comment.

2011-03-20  Eric Botcazou  <ebotcazou@adacore.com>

        PR bootstrap/48168
        * config/sparc/sparc.c (sparc_delegitimize_address): Add new pattern.

2011-03-20  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/48156
        * df-core.c (df_get_bb_dirty): Use df_lr if df_live is NULL,
        assume df and df_lr are not NULL.

2011-03-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR debug/48023
        * config/arm/arm.c (create_fix_barrier): Do not emit a minipool
        between a call and its CALL_ARG_LOCATION note.

2011-03-19  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR debug/48178
        * config/sh/sh.c (find_barrier): Don't emit a constant pool
        between a call and its corresponding CALL_ARG_LOCATION note.

2011-03-19  Anatoly Sokolov  <aesok@post.ru>

        * cfgcleanup.c (mark_effect): Use bitmap_set_range/bitmap_clear_range
        instead of loop. Use HARD_REGISTER_NUM_P predicate.
        * haifa-sched.c (setup_ref_regs): Ditto.
        * caller-save.c (add_used_regs_1): Ditto.
        * dse.c (look_for_hardregs): Ditto.
        * df-problems.c (df_simulate_one_insn_forwards): Ditto.
        * sched-rgn.c (check_live_1): Ditto.

2011-03-18  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (diagnose_mismatched_decls): Give an error for
        redefining a typedef with variably modified type.

2011-03-18  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (grokfield): Don't allow typedefs for structures or
        unions with no tag by default.
        * doc/extend.texi (Unnamed Fields): Update.

2011-03-18  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (float<SSEMODEI24:mode><X87MODEF:mode>2):
        Rewrite using indirect functions.
        (lwp_slwpcb): Ditto.
        * config/i386/sse.md (avx_vextractf128<mode>): Ditto.
        (avx_vinsertf128<mode>): Ditto.

2011-03-18  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_delegitimize_address): Handle GOTOFF
        unspecs.

2011-03-18  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_chunkify_start): Prevent literal pool
        splitting between a call and its corresponding CALL_ARG_LOCATION
        note.

2011-03-18  Maxim Kuvyrkov  <maxim@codesourcery.com>

        PR rtl-optimization/48170
        * gcse.c (hoist_code): Remove bogus asserts.

2011-03-18  Georg-Johann Lay  <avr@gjlay.de>

        * ira-color.c (assign_hard_reg): Honor LOCAL_REGNO in cost
        computation for prologue/epilogue.

2011-03-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * Makefile.in (check-consistency): Remove.

2011-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR debug/48176
        * dwarf2out.c (dwarf2out_finish): Call output_aranges even when
        arange_table_in_use is 0, but either text_section_used or
        cold_text_section_used is true.  Don't call it if
        !info_section_emitted.

2011-03-18  Anatoly Sokolov  <aesok@post.ru>

        * config/avr/avr.h (RET_REGISTER, LIBCALL_VALUE,
        FUNCTION_VALUE_REGNO_P): Remove.
        * config/avr/avr-protos.h (avr_ret_register, avr_libcall_value):
        Remove.
        * config/avr/avr.c (avr_ret_register): Make static inline.
        (avr_function_value_regno_p): New function.
        (avr_libcall_value): Make static. Add 'func' argument.
        (avr_function_value): Make static. Rename 'func' argument to
        'fn_decl_or_type', forward it to avr_libcall_value. Call
        avr_ret_register function instead of RET_REGISTER macro.
        (TARGET_LIBCALL_VALUE, TARGET_FUNCTION_VALUE_REGNO_P): Define.

2011-03-18  Jason Merrill  <jason@redhat.com>

        PR c++/23372
        * gimplify.c (gimplify_arg): Strip redundant TARGET_EXPR.

2011-03-18  Richard Guenther  <rguenther@suse.de>

        * doc/install.texi (--enable-gold): Remove.
        (--with-plugin-ld): Document.
        * doc/invoke.texi (-fuse-linker-plugin): Clarify.

2011-03-18  Andrew Pinski  <pinskia@gmail.com>

        PR middle-end/47790
        * expr.c (optimize_bitfield_assignment_op): Revamp to work
        again after expansion changes.

2011-03-18  Chung-Lin Tang  <cltang@codesourcery.com>

        * combine.c (try_combine): Do simplification only call of
        subst() on i2 even when i1 is present. Update comments.

2011-03-18  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/sh.c (sh_delegitimize_address): Handle UNSPEC_SYMOFF
        and UNSPEC_PCREL_SYMOFF.

2011-03-18  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md: Use define_c_enum for the unspec constant
        definitions.

2011-03-18  Richard Henderson  <rth@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/48161
        * expr.c (expand_expr_addr_expr_1): Use simplify_gen_binary
        instead of gen_rtx_PLUS if EXPAND_SUM or EXPAND_INITIALIZER.

2011-03-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/47725
        * combine.c (cant_combine_insn_p): Don't check zero/sign
        extended hard registers.

2011-03-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/47725
        * combine.c (cant_combine_insn_p): Check zero/sign extended
        hard registers.

2011-03-17  Anatoly Sokolov  <aesok@post.ru>

        * config/v850/v850.h (OUTPUT_ADDR_CONST_EXTRA): Remove.
        * config/v850/v850-protos.h (v850_output_addr_const_extra): Remove.
        * config/v850/v850.c (v850_output_addr_const_extra): Make static.
        Change return type to bool.
        (TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA): Define.

2011-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR debug/48163
        * var-tracking.c (prepare_call_arguments): If CALL target
        is a non-SYMBOL_REF CONSTANT_P, just add that into the list as
        pc instead of looking it up using cselib_lookup and use
        Pmode for it if x has VOIDmode.
        * dwarf2out.c (gen_subprogram_die): If also both first and
        second CONCAT arguments are VOIDmode, use mode of CONCAT itself.

        PR debug/48163
        * function.c (assign_parms): For data.passed_pointer parms
        use MEM of data.entry_parm instead of data.entry_parm itself
        as DECL_INCOMING_RTL.
        * dwarf2out.c (rtl_for_decl_location): Use DECL_INCOMING_RTL
        also when passed and declared mode is the same, DECL_RTL
        is a MEM with pseudo as address and DECL_INCOMING_RTL is
        a MEM too.

2011-03-16  Jeff Law  <law@redhat.com>

        PR rtl-optimization/37273
        * ira-costs.c (scan_one_insn): Detect constants living in memory and
        handle them like argument loads from stack slots.  Do not double
        count memory for memory constants and argument loads from stack slots.

2011-03-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR debug/48160
        * var-tracking.c (prepare_call_arguments): Check SUBREG.

2011-03-17  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/48171
        * config/i386/i386.opt: Add Save to -mavx and -mfma.

2011-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/48153
        * dwarf2out.c (mem_loc_descriptor) <case ENTRY_VALUE>: Return NULL
        if dwarf_strict.
        (gen_subprogram_die): Don't add call_site DIEs if dwarf_strict.
        Clear call_arg_locations and call_arg_loc_last always.

        PR middle-end/48152
        * var-tracking.c (prepare_call_arguments): If argument needs to be
        passed by reference, adjust argtype and mode.

2011-03-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/48134
        * tree-ssa.c (insert_debug_temp_for_var_def): If we propagated
        a value make sure to fold the statement.

2011-03-17  Chung-Lin Tang  <cltang@codesourcery.com>

        PR target/43872
        * config/arm/arm.c (arm_get_frame_offsets): Adjust early
        return condition with !cfun->calls_alloca.

2011-03-17  Richard Guenther  <rguenther@suse.de>

        PR bootstrap/48148
        * lto-cgraph.c (input_overwrite_node): Clear the abstract
        origin for decls in other ltrans units.
        (input_varpool_node): Likewise.

2011-03-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/48165
        * tree-object-size.c (compute_object_offset): Properly return
        the offset operand of MEM_REFs as sizetype.

2011-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/48141
        * params.def (PARAM_MAX_DSE_ACTIVE_LOCAL_STORES): New.
        * dse.c: Include params.h.
        (active_local_stores_len): New variable.
        (add_wild_read, dse_step1): Clear it when setting active_local_stores
        to NULL.
        (record_store, check_mem_read_rtx): Decrease it when removing
        from the chain.
        (scan_insn): Likewise.  Increase it when adding to chain, if it
        reaches PARAM_MAX_DSE_ACTIVE_LOCAL_STORES limit, set to 1 and
        set active_local_stores to NULL before the addition.
        * Makefile.in (dse.o): Depend on $(PARAMS_H).

        PR rtl-optimization/48141
        * dse.c (record_store): If no positions are needed in an insn
        that cannot be deleted, at least unchain it from active_local_stores.

2011-03-16  Dodji Seketeli  <dodji@redhat.com>

        PR debug/47510
        * dwarf2out.c (strip_naming_typedef): Factorize out of ...
        (lookup_type_die_strip_naming_typedef): ... here.
        (get_context_die): Use it.
        (gen_typedef_die): Add a DW_AT_{,MIPS_}linkage_name attribute to
        the anonymous struct named by the naming typedef.

2011-03-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/48154
        * config/i386/i386.c (ix86_builtin_vectorized_function): Check
        TARGET_ROUND for BUILT_IN_{FLOOR,CEIL,TRUNC,RINT}{,F} builtins.

2011-03-16  Jeff Law  <law@redhat.com>

        * tree-vrp.c (identify_jump_threads): Slightly simplify type
        check for operands of conditional.  Allow type to be a pointer.

2011-03-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/48149
        * fold-const.c (fold_binary_loc): Fold
        COMPLEX_EXPR <REALPART_EXPR <x>, IMAGPART_EXPR <x>>.

2011-03-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/26134
        * tree-ssa.c (maybe_rewrite_mem_ref_base): Handle rewriting
        complex part accesses to REALPART_EXPR and IMAGPART_EXPR.
        (non_rewritable_mem_ref_base): Handle complex type component
        accesses, constrain offsets for vector and complex extracts
        more properly.

2011-03-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/48146
        * tree-ssa-sink.c (sink_code_in_bb): Manually update virtual
        operands avoiding the need for renaming.

2011-03-16  Richard Guenther  <rguenther@suse.de>

        * gimple-fold.c (maybe_fold_reference): Open-code relevant
        constant folding.  Move MEM_REF canonicalization first.
        Rely on fold_const_aggregate_ref for initializer folding.
        * tree-ssa-ccp.c (ccp_fold): Handle constant vector extracts.

2011-03-16  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/48136
        * fold-const.c (fold_binary_loc) <case EQ_EXPR, NE_EXPR>: Make sure
        arg0/arg1 or their arguments are always fold converted to matching
        types.

        * var-tracking.c (prepare_call_arguments): Add ATTRIBUTE_UNUSED
        to nargs.

2011-03-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR lto/46944
        * configure.ac (gcc_cv_gld_major_version, gcc_cv_gld_minor):
        Handle in-tree gold.
        (ld_vers): Extract binutils version for gold.
        (gcc_cv_ld_hidden): Handle gold here.
        (gcc_cv_lto_plugin): Determine level of linker plugin support.
        * configure: Regenerate.
        * config.in: Regenerate.
        * gcc.c: Only use LTO plugin if HAVE_LTO_PLUGIN > 0, reject
        -fuse-linker-plugin otherwise.
        (LINK_PLUGIN_SPEC): Define.  Extract from LINK_COMMAND_SPEC.
        (LINK_COMMAND_SPEC): Use it.
        (main): Only look for LTOPLUGINSONAME if HAVE_LTO_PLUGIN > 0.

2011-03-16  Jakub Jelinek  <jakub@redhat.com>

        * emit-rtl.c (try_split): Don't call copy_call_info debug hook.
        * calls.c: Remove debug.h include.
        (emit_call_1): Don't call virtual_call_token debug hook.
        * dwarf2out.c (debug_dcall_section, debug_vcall_section,
        dcall_entry, vcall_entry, dcall_table, vcall_table, vcall_insn,
        vcall_insn_table, DEBUG_DCALL_SECTION, DEBUG_VCALL_SECTION,
        size_of_dcall_table, output_dcall_table, size_of_vcall_table,
        output_vcall_table, dwarf2out_direct_call, vcall_insn_table_hash,
        vcall_insn_table_eq, store_vcall_insn, lookup_vcall_insn,
        dwarf2out_virtual_call_token, dwarf2out_copy_call_info,
        dwarf2out_virtual_call): Remove.
        (dwarf2_debug_hooks): Remove direct_call, virtual_call_token,
        copy_call_info and virtual_call hooks.
        (dwarf2out_init): Don't initialize vcall_insn_table,
        debug_dcall_section and debug_vcall_section.
        (prune_unused_types): Don't mark nodes from dcall_table.
        (dwarf2out_finish): Don't output dcall or vcall tables.
        * final.c (final_scan_insn): Don't call direct_call or
        virtual_call debug hooks.
        * debug.h (struct gcc_debug_hooks): Remove direct_call,
        virtual_call_token, copy_call_info and virtual_call hooks.
        (debug_nothing_uid): Remove prototype.
        * sdbout.c (sdb_debug_hooks): Remove direct_call, virtual_call_token,
        copy_call_info and virtual_call hooks.
        * vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
        * dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Likewise.
        * debug.c (do_nothing_debug_hooks): Likewise.
        (debug_nothing_uid): Remove.
        * doc/invoke.texi (-fenable-icf-debug): Remove.
        * common.opt (-fenable-icf-debug): Likewise.

        * calls.c (emit_call_1): Set MEM_EXPR on call's MEM.
        * var-tracking.c (prepare_call_arguments): Use MEM_EXPR on
        call's MEM.  Handle functions returning aggregate through a hidden
        first pointer.  For virtual calls add clobbered pc to call arguments
        chain.
        * dwarf2out.c (gen_subprogram_die): Emit
        DW_AT_GNU_call_site_target_clobbered if DW_AT_GNU_call_site_target
        can't be emitted.

        PR debug/45882
        * rtl.def (ENTRY_VALUE): Change format from "e" to "0".
        * rtl.h (ENTRY_VALUE_EXP): Define.
        * rtl.c (rtx_equal_p_cb, rtx_equal_p): Handle ENTRY_VALUE.
        * cselib.c (rtx_equal_for_cselib_p, cselib_hash_rtx): Likewise.
        * print-rtl.c (print_rtx): Likewise.
        * gengtype.c (adjust_field_rtx_def): Likewise.
        * var-tracking.c (vt_add_function_parameter): Adjust
        gen_rtx_ENTRY_VALUE uses, use ENTRY_VALUE_EXP macro.
        * dwarf2out.c (mem_loc_descriptor): Use ENTRY_VALUE_EXP macro.
        * cfgexpand.c (expand_debug_expr): If a SSA_NAME without
        partition is a default definition of a PARM_DECL, use ENTRY_VALUE
        of its DECL_INCOMING_RTL if possible, or its DECL_RTL if set.

        * final.c (final_scan_insn): Handle NOTE_INSN_CALL_ARG_LOCATION.
        Call var_location debug hook even on CALL_INSNs.
        (rest_of_clean_state): Don't print NOTE_INSN_CALL_ARG_LOCATION.
        * rtl.def (ENTRY_VALUE): New.
        * dwarf2out.c: Include cfglayout.h.
        (dwarf_stack_op_name, size_of_loc_descr, output_loc_operands,
        output_loc_operands_raw): Handle DW_OP_GNU_entry_value.
        (struct call_arg_loc_node): New type.
        (call_arg_locations, call_arg_loc_last, block_map, call_site_count,
        tail_call_site_count): New variables.
        (dwarf_tag_name): Handle DW_TAG_GNU_call_site and
        DW_TAG_GNU_call_site_parameter.
        (dwarf_attr_name): Handle DW_AT_GNU_call_site_value,
        DW_AT_GNU_call_site_data_value, DW_AT_GNU_call_site_target,
        DW_AT_GNU_call_site_target_clobbered, DW_AT_GNU_tail_call,
        DW_AT_GNU_all_tail_call_sites, DW_AT_GNU_all_call_sites
        and DW_AT_GNU_all_source_call_sites.
        (mem_loc_descriptor): Handle ENTRY_VALUE.
        (add_src_coords_attributes): Don't add enything if
        DECL_SOURCE_LOCATION is UNKNOWN_LOCATION.
        (dwarf2out_abstract_function): Save and clear call_arg_location,
        call_site_count and tail_call_site_count around dwarf2out_decl call.
        (gen_call_site_die): New function.
        (gen_subprogram_die): Emit DW_TAG_GNU_call_site DIEs for call sites.
        (gen_lexical_block_die, gen_inlined_subroutine_die): Update block_map.
        (dwarf2out_function_decl): Clear call_arg_locations,
        call_arg_loc_last, set call_site_count and tail_call_site_count
        to -1 and free block_map.
        (dwarf2out_var_location): Handle NOTE_INSN_CALL_ARG_LOCATION and
        CALL_INSNs.  Add NOTE_DURING_CALL_P var location notes even when not
        followed by any real instructions.
        (dwarf2out_begin_function): Set call_site_count and
        tail_call_site_count to 0.
        (resolve_addr): If DW_AT_abstract_origin of DW_TAG_GNU_call_site
        is dw_val_class_addr, attempt to look it up again, for DECL_EXTERNAL
        attempt to force a DIE for it and worst case remove the attribute.
        (resolve_one_addr): For TREE_CONSTANT_POOL_ADDRESS_P SYMBOL_REFs
        check TREE_ASM_WRITTEN of DECL_INITIAL of the decl instead of
        the decl itself.
        * var-tracking.c: Include tm_p.h.
        (vt_stack_adjustments): For calls call note_register_arguments.
        (argument_reg_set): New variable.
        (add_stores): For MO_VAL_SET of non-tracked regs from argument_reg_set
        ensure the VALUE is resolved.
        (call_arguments): New variable.
        (prepare_call_arguments): New function.
        (add_with_sets): For MO_CALL set u.loc from call_arguments and clear it.
        (struct expand_loc_callback_data): Add ignore_cur_loc field.
        (vt_expand_loc_callback): If ignore_cur_loc, don't look at cur_loc and
        always use the best expression.
        (vt_expand_loc): Add ignore_cur_loc argument.
        (vt_expand_loc_dummy): Clear ignore_cur_loc field.
        (emit_note_insn_var_location): Adjust vt_expand_loc callers.
        (emit_notes_in_bb) <case MO_CALL>: Add NOTE_INSN_CALL_ARG_LOCATION
        note for all calls.
        (vt_add_function_parameter): Use cselib_lookup_from_insn.
        If dv is a VALUE, enter into hash table also ENTRY_VALUE for the
        argument.  Don't call cselib_preserve_only_values and
        cselib_reset_table.
        (note_register_arguments): New function.
        (vt_initialize): Compute argument_reg_set.  Call
        vt_add_function_parameters before processing basic blocks instead of
        afterwards.  For calls call prepare_call_arguments before calling
        cselib_process_insn.
        * print-rtl.c (print_rtx): Handle NOTE_INSN_CALL_ARG_LOCATION.
        * Makefile.in (dwarf2out.o): Depend on $(CFGLAYOUT_H).
        (var-tracking.o): Depend on $(TM_P_H).
        * cfglayout.h (insn_scope): New prototype.
        * gengtype.c (adjust_field_rtx_def): Handle NOTE_INSN_CALL_ARG_LOCATION.
        * cfglayout.c (insn_scope): No longer static.
        * insn-notes.def (CALL_ARG_LOCATION): New.
        * calls.c (expand_call, emit_library_call_value_1): Put USEs for
        MEM arguments into CALL_INSN_FUNCTION_USAGE unconditionally.
        * integrate.c (set_block_origin_self, set_block_abstract_flags): Do
        nothing for DECL_EXTERNAL BLOCK_VARS.

2011-03-16  Alan Modra  <amodra@gmail.com>

        PR target/45844
        * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
        create invalid offset address for vsx splat insn.
        * config/rs6000/predicates.md (splat_input_operand): New.
        * config/rs6000/vsx.md (vsx_splat_*): Use it.

2011-03-15  Xinliang David Li  <davidxl@google.com>

        PR c/47837
        * tree-ssa-uninit.c (pred_chain_length_cmp): New function.
        (normalize_preds): New function.
        (is_use_properly_guarded): Normalize def predicates.

2011-03-15  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/46778
        * config/arm/arm.md (arm_movtas_ze): Use 'L' instead of 'c'
        in the output template.

2011-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47650
        * tree-pretty-print.c (dump_function_declaration): Properly
        dump unprototyped and varargs function types.

2011-03-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/13954
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Look through memcpy
        and friends.

2011-03-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/48037
        * tree-ssa.c (maybe_rewrite_mem_ref_base): Rewrite vector
        selects into BIT_FIELD_REFs.
        (non_rewritable_mem_ref_base): Check if a MEM_REF is a
        vector select.

2011-03-15  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/48129
        * builtins.c (fold_builtin_snprintf): Convert to type of
        built_in_decls[BUILT_IN_SNPRINTF] retval instead of
        implicit_built_in_decls[BUILT_IN_SNPRINTF] retval.

2011-03-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/41490
        * tree-ssa-dce.c (propagate_necessity): Handle returns without
        value but with VUSE.
        * tree-ssa-operands.c (parse_ssa_operands): Add a VUSE on all
        return statements.
        * tree-ssa-sink.c (statement_sink_location): Fix store sinking.
        * tree-ssa-phiopt.c (tree_ssa_phiopt_worker): Handle virtual PHIs.
        * tree-tailcall.c (find_tail_calls): Ignore returns.

2011-03-15  Richard Guenther  <rguenther@suse.de>

        PR middle-end/48031
        * fold-const.c (fold_indirect_ref_1): Do not create new variable-sized
        or variable-indexed array accesses when in gimple form.

2011-03-15  Richard Guenther  <rguenther@suse.de>

        * config/i386/i386.c (ix86_emit_swdivsf): Implement more efficiently.

2011-03-15  Alan Modra  <amodra@gmail.com>

        PR target/48032
        * config/rs6000/rs6000.c (offsettable_ok_by_alignment): Do not
        presume symbol_refs without a symbol_ref_decl are suitably
        aligned, nor other trees we may see here.  Handle anchor symbols.
        (legitimate_constant_pool_address_p): Comment.  Add mode param.
        Check cmodel=medium addresses.  Adjust all calls.
        (rs6000_emit_move): Don't call offsettable_ok_by_alignment on
        creating cmodel=medium optimized access to locals.
        * config/rs6000/constraints.md (R): Pass QImode to
        legitimate_constant_pool_address_p.
        * config/rs6000/predicates.md (input_operand): Pass mode to
        legitimate_constant_pool_address_p.
        * config/rs6000/rs6000-protos.h (legitimate_constant_pool_address_p):
        Update prototype.

2011-03-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/48053
        * config/rs6000/rs6000.md (movdi split for 32-bit): Don't split up
        64-bit constants being loaded into registers other than GPRs such
        as loading 0 into a VSX register.

2011-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/sol2.c (solaris_assemble_visibility): Remove obsolete URLs.

2011-03-14  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/47917
        * builtins.c (fold_builtin_snprintf): New function.
        (fold_builtin_3): Call it for BUILT_IN_SNPRINTF.
        (fold_builtin_4): Likewise.

        PR middle-end/38878
        * fold-const.c (fold_binary_loc) <case EQ_EXPR, NE_EXPR>: Add
        STRIP_NOPS on arg0 and arg1.  When optimizing X +- C == X
        and C - X == X also strip nops from +/-/p+ operand.
        When optimizing -X == C, fold C to arg0's type.

        PR debug/47946
        * dwarf2out.c (add_bit_offset_attribute): If bit_offset is negative,
        emit it as add_AT_int instead of add_AT_unsigned.

2011-03-14  Tom Tromey  <tromey@redhat.com>

        * unwind-dw2.c: Include sys/sdt.h if it exists.
        (_Unwind_DebugHook): Use STAP_PROBE2.
        * config.in, configure: Rebuild.
        * configure.ac: Check for sys/sdt.h.

2011-03-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (ROUND_FLOOR): New constant.
        (ROUND_CEIL): Ditto.
        (ROUND_TRUNC): Ditto.
        (ROUND_MXCSR): Ditto.
        (ROUND_NO_EXC): Ditto.
        (rint<mode>2): Use new defines instead of numerical constants.
        (floor<mode>2): Ditto.
        (ceil<mode>2): Ditto.
        (btrunc<mode>2): Ditto.
        * config/i386/i386-builtin-types.def: Define ROUND function type
        aliases.
        * config/i386/i386.c (enum ix86_builtins): Add
        IX86_BUILTIN_{FLOOR,CEIL,TRUNC,RINT}{PS,PD}{,256} defines.
        (struct builtin_description): Add
        __builtin_ia32_{floor,ceil,trunc,rint}{pd,ps}{,256} descriptions.
        (ix86_expand_sse_round): New static function.
        (ix86_expand_args_builtin): Call ix86_expand_sse_round for ROUND
        function types.
        (ix86_builtin_vectorized_function): Handle
        BUILT_IN_{FLOOR,CEIL,TRUNC,RINT}{,F} builtins.

2011-03-14  Tom Tromey  <tromey@redhat.com>

        * c-parser.c (c_parser_asm_string_literal): Clear
        warn_overlength_strings.

2011-03-14  Tom Tromey  <tromey@redhat.com>

        * c-parser.c (disable_extension_diagnostics): Save
        warn_overlength_strings.
        (restore_extension_diagnostics): Restore warn_overlength_strings.

2011-03-14  Jakub Jelinek  <jakub@redhat.com>

        * BASE-VER: Change to 4.7.0.

2011-03-14  Richard Guenther  <rguenther@suse.de>

        PR middle-end/48098
        * tree.c (build_vector_from_val): Adjust assert to requirements
        and reality.

2011-03-14  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/48102
        * graphite-cloog-compat.h (build_cloog_prog): Remove STATE parameter.

2011-03-14  Andreas Tobler  <andreast@fgznet.ch>

        * config/rs6000/freebsd.h: (RELOCATABLE_NEEDS_FIXUP): Define in
        terms of target_flags_explicit. Adjust copyright year.

        * config.gcc: Add FreeBSD PowerPC soft-float libgcc bits.
        * config/rs6000/t-freebsd: New file. Add override for
        LIB2FUNCS_EXTRA.

2011-03-13  Chris Demetriou  <cgd@google.com>

        * doc/invoke.texi (-fdiagnostics-show-option): Replace with...
        (-fno-diagnostics-show-option): this, to reflect current default.
        (-Werror=): Update text about -fno-diagnostics-show-option.

2011-03-12  Peter Bergner  <bergner@vnet.ibm.com>

        PR target/48053
        * config/rs6000/predicates.md (easy_vector_constant_add_self,
        easy_vector_constant_msb): Do not handle V2DImode and V2DFmode.
        * config/rs6000/rs6000.c (const_vector_elt_as_int): Add assert that
        mode is not V2DImode or V2DFmode.
        (vspltis_constant): Do not handle V2DImode and V2DFmode.
        (rs6000_expand_vector_init): Replace copy_to_reg with copy_to_mode_reg.
        * config/rs6000/rs6000.md (movdi_internal32): Allow setting VSX
        registers to 0.
        (movdi_internal64): Likewise.

2011-03-12  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/47127
        * graphite-clast-to-gimple.c (build_cloog_prog): Removed state
        parameter.
        (set_cloog_options): Same.
        (scop_to_clast): Same.
        (print_clast_stmt): Do not call cloog_state_malloc and
        cloog_state_free.
        (print_generated_program): Same.
        (gloog): Same.
        * graphite-clast-to-gimple.h (cloog_state): Declared.
        (scop_to_clast): Adjust declaration.
        * graphite.c (cloog_state): Defined here.
        (graphite_initialize): Call cloog_state_malloc.
        (graphite_finalize): Call cloog_state_free.

2011-03-11  Jason Merrill  <jason@redhat.com>

        * attribs.c (lookup_attribute_spec): Take const_tree.
        * tree.h: Adjust.

2011-03-11  Joseph Myers  <joseph@codesourcery.com>

        * config/sparc/sparc.c (sparc_option_override): Use
        PROCESSOR_NIAGARA2 not PROCESSOR_NIAGARA for "niagara2".

2011-03-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/48067
        * tree-ssa-math-opts.c (convert_mult_to_fma): Verify the
        multiplication result will be only used once on the target
        stmt.

2011-03-11  Richard Guenther  <rguenther@suse.de>

        * doc/invoke.texi (max-inline-insns-single): Adjust default value.

2011-03-11  Richard Guenther  <rguenther@suse.de>

        PR lto/48073
        * tree.c (find_decls_types_r): Do not walk types only reachable
        from IDENTIFIER_NODEs.

2011-03-11  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/48044
        * ipa.c (cgraph_remove_unreachable_nodes): Enqueue
        all vnode->force_output nodes as needed.

2011-03-11  Jason Merrill  <jason@redhat.com>

        PR c++/48069
        * tree.c (type_hash_eq): Use COMPLETE_TYPE_P, not
        COMPLETE_OR_UNBOUND_ARRAY_TYPE_P.

2011-03-11  Martin Jambor  <mjambor@suse.cz>

        * cgraphunit.c (verify_cgraph_node): Call cgraph_get_node instead of
        cgraph_node.

2011-03-11  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/48063
        * ipa-inline.c (cgraph_decide_inlining): Don't try to
        inline functions called once if !tree_can_inline_p (node->callers).

2011-03-11  Chen Liqin  <liqin.gcc@gmail.com>

        * config.gcc (score-*-elf): Add extra_parts .., update tmake_file and
        extra_objs.
        * config/score/score3.c: Delete.
        * config/score/score3.h: Delete.
        * config/score/mul-div.S: Delete.
        * config/score/sfp-machine.h: Add new file.
        * config/score/constraints.md: Add new file.
        * config/score/t-score-softfp: Add new file.
        * config/score/t-score-elf: Remove score3.o, do not generate multilib.
        * config/score/score7.c (score7_const_ok_for_letter_p): Delete.
        (score7_extra_constraint): Delete.
        (score7_option_override): Remove unused code.
        * config/score/score.c: Remove score3 and score5 define and code.
        * config/score/score.h: Remove score3 and score5 define and code.
        * config/score/score.md: Remove score3 template and unusual insn.
        * config/score/score.opt: Remove score3 and score5 options.

2011-03-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config/pa/pa-hpux10.h (TARGET_OS_CPP_BUILTINS): Define _REENTRANT
        when _HPUX_SOURCE is defined.
        (LIB_SPEC): Use -lc instead of -lc_r when -threads is specified.

2011-03-10  Jason Merrill  <jason@redhat.com>

        PR c++/48029
        * stor-layout.c (layout_type): Don't set structural equality
        on arrays of incomplete type.
        * tree.c (type_hash_eq): Handle comparing them properly.

2011-03-10  Jakub Jelinek  <jakub@redhat.com>

        PR debug/48043
        * config/s390/s390.c (s390_delegitimize_address): Make sure the
        result mode matches original rtl mode.

2011-03-10  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (bitset_in_memory, bitclr_in_memory: Fix timings.
        (andsi3, andsi3_flags): Fix timings for three operand alternative.

2011-03-09  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/47866
        * expr.c (store_field): If MEM_SCALAR_P (target), don't use
        MEM_SET_IN_STRUCT_P (to_rtx, 1), just set MEM_IN_STRUCT_P (to_rtx)
        if target wasn't scalar.
        * function.c (assign_stack_temp_for_type): Assert that neither
        MEM_SCALAR_P nor MEM_IN_STRUCT_P is set previously, set either
        MEM_IN_STRUCT_P or MEM_SCALAR_P instead of using MEM_SET_IN_STRUCT_P
        macro.
        * rtl.h (MEM_SET_IN_STRUCT_P): Removed.

2011-03-09  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390-protos.h (s390_label_align): New prototype.
        * config/s390/s390.c (s390_label_align): New function.
        * config/s390/s390.h (LABEL_ALIGN): New target macro definition.

2011-03-08  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/47755
        * config/rs6000/rs6000.c (easy_altivec_constant): Correctly handle
        V2DI/V2DF constants.  Only all 0's or all 1's are easy.
        (output_vec_const_move): Ditto.

2011-03-08  Anatoly Sokolov  <aesok@post.ru>

        * config/mips/mips.h (PREFERRED_RELOAD_CLASS): Remove macro.
        * config/mips/mips-protos.h (mips_preferred_reload_class): Remove.
        * config/mips/mips.c (mips_preferred_reload_class): Make static.
        Change 'rclass' argument and result type to reg_class_t.
        (TARGET_PREFERRED_RELOAD_CLASS): Define.

2011-03-08  Georg-Johann Lay  <avr@gjlay.de>

       * config/avr/avr.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove.
       * config/avr/avr.c (TARGET_REGISTER_MOVE_COST,
       TARGET_MEMORY_MOVE_COST): Define.
       (avr_register_move_cost, avr_memory_move_cost): New Functions.

2011-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR debug/47881
        * ira.c (ira): Call df_analyze again if delete_trivially_dead_insns
        removed anything.

        PR tree-optimization/48022
        * fold-const.c (fold_comparison): Don't call fold_overflow_warning
        for EQ/NE_EXPR.

2011-03-07  Jakub Jelinek  <jakub@redhat.com>

        PR debug/47991
        * var-tracking.c (find_use_val): Return NULL for
        cui->sets && cui->store_p BLKmode MEMs.

2011-03-07  Anatoly Sokolov  <aesok@post.ru>

        * config/stormy16/stormy16.h (PRINT_OPERAND, PRINT_OPERAND_ADDRESS):
        Remove.
        * config/stormy16/stormy16-protos.h (xstormy16_print_operand,
        xstormy16_print_operand_address): Remove.
        * config/stormy16/stormy16.c (xstormy16_print_operand,
        xstormy16_print_operand_address): Make static.
        (TARGET_PRINT_OPERAND, TARGET_PRINT_OPERAND_ADDRESS): Define.

2011-03-07  Pat Haugen  <pthaugen@us.ibm.com>

        PR target/47862
        * config/rs6000/rs6000.h (HARD_REGNO_CALLER_SAVE_MODE): Define.
        * config/rs6000/e500.h (HARD_REGNO_CALLER_SAVE_MODE): Undefine
        before definition.

2011-03-07  Zdenek Dvorak  <ook@ucw.cz>

        PR bootstrap/48000
        * cfgloopmanip.c (fix_bb_placements): Return immediately
        if FROM is BASE_LOOP's header.

2011-03-07  Paul Wögerer  <paul_woegerer@mentor.com>

        * gimplify.c (gimplify_function_tree): Fix building calls
        to __builtin_return_address.

2011-03-07  Alan Modra  <amodra@gmail.com>

        * config/rs6000/linux.h (TARGET_ASM_FILE_END): Don't define.
        * config/rs6000/linux64.h (TARGET_ASM_FILE_END): Don't define.
        * config/rs6000/sysv4.h (TARGET_ASM_FILE_END): Define.
        * config/rs6000/rs6000-protos.h (init_cumulative_args): Add fndecl and
        return_mode args.
        * config/rs6000/rs6000.h (CUMULATIVE_ARGS): Add "escapes".
        (INIT_CUMULATIVE_ARGS): Pass FNDECL, VOIDmode.
        (INIT_CUMULATIVE_INCOMING_ARGS): Pass current_function_decl, VOIDmode.
        (INIT_CUMULATIVE_LIBCALL_ARGS): Pass NULL_TREE, MODE.
        * config/rs6000/rs6000.c
        (rs6000_elf_end_indicate_exec_stack): Rename to..
        (rs6000_elf_file_end): ..this.  Only call file_end_indicate_exec_stack
        for POWERPC_LINUX.  Move code emitting .gnu_attribute to here, from..
        (rs6000_file_start): ..here.
        (rs6000_passes_float, rs6000_passes_vector, rs6000_returns_struct): New
        file scope variables.
        (call_ABI_of_interest): New function.
        (init_cumulative_args): Set above vars when function return value
        is a float, vector, or small struct.
        (rs6000_function_arg_advance_1): Likewise for function args.
        (rs6000_va_start): Set rs6000_passes_float if variable arg function
        references float args.

2011-03-07  Mingjie Xing  <mingjie.xing@gmail.com>

        * doc/cfg.texi: Remove "See" before @ref.
        * doc/invoke.texi: Likewise.

2011-03-05  Jason Merrill  <jason@redhat.com>

        * doc/invoke.texi (C++ Dialect Options): Document ABI v5.

2011-03-05  Anthony Green  <green@moxielogic.com>

        * config.gcc (moxie-*-elf): Add newlib-stdint.h to tmfile.

2011-03-05  Zdenek Dvorak  <ook@ucw.cz>

        PR rtl-optimization/47899
        * cfgloopmanip.c (fix_bb_placements): Fix first argument
        to flow_loop_nested_p when moving the loop upward.

2011-03-05  Richard Earnshaw  <rearnsha@arm.com>

        PR target/47719
        * arm.md (movhi_insn_arch4):  Accept any immediate constant.

2011-03-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/47967
        * ipa-cp.c (build_const_val): Return NULL instead of creating
        VIEW_CONVERT_EXPR for mismatching sizes.
        (ipcp_create_replace_map): Return NULL if build_const_val failed.
        (ipcp_insert_stage): If ipcp_create_replace_map returns NULL,
        give up on versioning.

2011-03-05  Alan Modra  <amodra@gmail.com>

        PR target/47986
        * config/rs6000/rs6000.c (rs6000_delegitimize_address): Handle
        full cmodel medium/large lo_sum + high addresses.

2011-03-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_decompose_address): Reject non-literal
        pool references in UNSPEC_LTREL_OFFSET.

2011-03-04  Jan Hubicka  <jh@suse.cz>

        PR lto/47497
        * lto-symtab.c (lto_cgraph_replace_node): Do not set thunk.alias.
        (lto_symtab_merge_cgraph_nodes_1): Update thunk.alias pointers here.
        * cgraph.h (cgraph_same_body_alias, cgraph_add_thunk):
        Add node pointers.
        * cgraph.c (cgraph_same_body_alias_1, cgraph_same_body_alias,
        cgraph_add_thunk): Add node pointers.
        * lto-cgraph.c (lto_output_node): Verify that thunks&aliases are
        associated to right node.
        (input_node): Update use of cgraph_same_body_alias
        and cgraph_add_thunk.

2011-03-04  Changpeng Fang  <changpeng.fang@amd.com>

        * config/i386/i386.opt (mprefer-avx128): New flag.
        * config/i386/i386.c (ix86_preferred_simd_mode): Prefer 128-bit AVX
        modes when the flag -mprefer-avx128 is on.

2011-03-04  Richard Sandiford  <richard.sandiford@linaro.org>

        * dwarf2out.c (compare_loc_operands): Fix address handling.

2011-03-04  Alan Modra  <amodra@gmail.com>

        * tree.h (TREE_ADDRESSABLE): Update FUNCTION_DECL comment.

2011-03-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47968
        * expmed.c (extract_bit_field_1): Prefer vector modes that
        vec_extract patterns can handle.

2011-03-04  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47975
        * optabs.c (optab_for_tree_code): Do not use VECTOR_MODE_P.

2011-03-04  Richard Henderson  <rth@redhat.com>

        * explow.c (emit_stack_save): Remove 'after' parameter.
        (emit_stack_restore): Likewise.
        * expr.h: Update to match.
        * builtins.c, calls.c, stmt.c: Likewise.
        * config/alpha/alpha.md, config/avr/avr.md: Likewise.
        * config/mips/mips.md, config/pa/pa.md, config/vax/vax.md: Likewise.
        * function.c (expand_function_end): Insert the emit_stack_save
        sequence before parm_birth_insn instead of after.

2011-03-03  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (*avx_pmaddubsw128): Fix mode of VEC_SELECT RTX.
        (ssse3_pmaddubsw128): Ditto.
        (ssse3_pmaddubsw): Ditto.

2011-03-03  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/t-hpux: Add $(srcdir)/unwind-c.c to LIB2ADDEH

2011-03-03  Jakub Jelinek  <jakub@redhat.com>

        PR c/47963
        * gimplify.c (omp_add_variable): Only call omp_notice_variable
        on TYPE_SIZE_UNIT if it is a DECL.

        PR debug/47283
        * cfgexpand.c (expand_debug_expr) <case MEM_REF>: If MEM_REF
        first operand is not is_gimple_mem_ref_addr, try to fold it.
        If the operand still isn't is_gimple_mem_ref_addr, clear
        MEM_EXPR on op0.

2011-03-03  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47283
        * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Make code
        match comment.
        (refs_may_alias_p_1): For release branches return true if
        we are confused by our input.

2011-03-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_function_value): Rename to ...
        (s390_function_and_libcall_value): ... this.
        (s390_function_value): New function.
        (s390_libcall_value): New function.
        (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE): Define target hooks.
        * config/s390/s390.h (FUNCTION_VALUE, LIBCALL_VALUE): Remove
        target macro definitions.
        * config/s390/s390-protos.h (s390_function_value): Remove prototype.

2011-03-02  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/freebsd64.h (CC1_SPEC): Define.
        * config/i386/linux64.h (CC1_SPEC): Define.
        * config/i386/x86-64.h (CC1_SPEC): Don't define.

2011-03-02  Anatoly Sokolov  <aesok@post.ru>

        * config/stormy16/stormy16.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST):
        Remove.
        * config/stormy16/stormy16.c: Include reload.h.
        (xstormy16_memory_move_cost): New function.
        (TARGET_MEMORY_MOVE_COST): Define.

2011-03-02  Richard Sandiford  <richard.sandiford@linaro.org>

        PR rtl-optimization/47925
        * cse.c (count_reg_usage): Don't ignore the SET_DEST of instructions
        with side effects.  Remove the more-specific check for volatile asms.

2011-03-02  Alan Modra  <amodra@gmail.com>

        PR target/47935
        * config/rs6000/predicates.md (lwa_operand): Check cmodel medium
        toc relative addresses for valid offsets.

2011-03-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47890
        * tree-vect-loop.c (get_initial_def_for_induction): Set
        related stmt properly.

2011-03-01  Richard Guenther  <rguenther@suse.de>

        PR lto/47924
        * lto-streamer.c (lto_record_common_node): Also register
        the canonical type.

2011-03-01  Richard Guenther  <rguenther@suse.de>

        PR lto/46911
        * lto-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
        Do not stream DECL_ABSTRACT_ORIGIN.
        (lto_input_ts_block_tree_pointers): Nor BLOCK_SOURCE_LOCATION,
        BLOCK_NONLOCALIZED_VARS or BLOCK_ABSTRACT_ORIGIN.
        * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
        Do not stream DECL_ABSTRACT_ORIGIN.
        (lto_output_ts_block_tree_pointers): Nor BLOCK_SOURCE_LOCATION,
        BLOCK_NONLOCALIZED_VARS or BLOCK_ABSTRACT_ORIGIN.

2011-02-28  Anatoly Sokolov  <aesok@post.ru>

        * config/stormy16/stormy16.h (FUNCTION_VALUE, LIBCALL_VALUE,
        FUNCTION_VALUE_REGNO_P): Remove.
        * config/stormy16/stormy16-protos.h (xstormy16_function_value): Remove.
        * config/stormy16/stormy16.c (xstormy16_function_value): Make static.
        Add 'outgoing' argument.
        (xstormy16_libcall_value, xstormy16_function_value_regno_p): New
        function.
        (TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE,
        TARGET_FUNCTION_VALUE_REGNO_P): Define.

2011-02-28  Kai Tietz  <kai.tietz@onevision.com>

        PR debug/28047
        * dwarf2out.c (file_table_eq): Use filename_cmp instead of strcmp.
        (lookup_filename): Likewise.
        * final.c (remap_debug_filename): Use filename_ncmp instead of strncmp.

2011-02-28  Bernd Schmidt  <bernds@codesourcery.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/47893
        * rtl.h (ASLK_REDUCE_ALIGN, ASLK_RECORD_PAD): Define.
        (assign_stack_local_1): Change last argument type to int.
        * function.c (assign_stack_local_1): Replace reduce_alignment_ok
        argument with kind.  If bit ASLK_RECORD_PAD is not set in it,
        don't record padding space into frame_space_list nor use those areas.
        (assign_stack_local): Adjust caller.
        (assign_stack_temp_for_type): Call assign_stack_local_1 instead
        of assign_stack_local, pass 0 as last argument.
        * caller-save.c (setup_save_areas): Adjust assign_stack_local_1
        callers.

2011-02-28  Jakub Jelinek  <jakub@redhat.com>

        PR debug/47283
        * cfgexpand.c (convert_debug_memory_address): Add AS parameter.
        Use target address_mode and pointer_mode hooks instead of hardcoded
        Pmode and ptr_mode.  Handle some simple cases of extending if
        POINTERS_EXTEND_UNSIGNED < 0.
        (expand_debug_expr) <case MEM_REF, INDIRECT_REF, TARGET_MEM_REF>:
        Call convert_debug_memory_address.
        (expand_debug_expr) <case ADDR_EXPR>: Pass as to
        convert_debug_memory_address.

        PR middle-end/46790
        * configure.ac (HAVE_LD_EH_GC_SECTIONS_BUG): New test.
        * configure: Regenerated.
        * config.in: Regenerated.
        * varasm.c (default_function_section): Return NULL
        if HAVE_LD_EH_GC_SECTIONS_BUG and decl has implicit section name.

2011-02-28  Martin Jambor  <mjambor@suse.cz>

        * ipa-inline.c (cgraph_decide_inlining_of_small_functions): Fix
        the description to match the printed values.

2011-02-28  Richard Guenther  <rguenther@suse.de>

        * tree-inline.c (tree_function_versioning): Set BLOCK_SUPERCONTEXT
        of the copied scope tree.

2011-02-28  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * doc/extend.texi (Function Attributes): Avoid deeply (and
        wrongly) nested tables.

2011-02-27  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/47903
        * real.c (real_arithmetic) <case PLUS_EXPR, MINUS_EXPR,
        MULT_EXPR, RDIV_EXPR>: Clear padding bits in *r first if
        r isn't op0 nor op1.

2011-02-23  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md: Remove magic comment for emacs.

2011-02-23  Georg-Johann Lay  <avr@gjlay.de>

        PR target/45261
        * config/avr/avr.c (avr_option_override): Use error on bad options.
        (avr_help): New function.
        (TARGET_HELP): Define.

2011-02-22  Georg-Johann Lay  <avr@gjlay.de>

        PR target/42240
        * config/avr/avr.c (avr_cannot_modify_jumps_p): New function.
        (TARGET_CANNOT_MODIFY_JUMPS_P): Define.

2011-02-26  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/invoke.texi (ARC Options): Use CPU instead of cpu.
        (ARM Options): Ditto.
        (i386 and x86-64 Options): Ditto.
        (RX Options): Ditto.
        (SPARC Options): Ditto.

2011-02-26  Tijl Coosemans  <tijl@coosemans.org>

        * config.gcc (i386-*-freebsd*): Make i486 the default arch on
        FreeBSD 6 and later.  Generally use cpu generic.

2011-02-25  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/cpp.texi: Update copyright years.

2011-02-25  Sebastien Bourdeauducq  <sebastien@milkymist.org>

        PR target/46898
        * config/lm32/lm32.md (ashrsi3): Added needed variable.

2011-02-25  Jon Beniston  <jon@beniston.com>

        PR target/46898
        * config/lm32/lm32.h (INCOMING_RETURN_ADDR_RTX): New.
        * config/lm32/lm32.md (ashlsi3): Remove unused variable.
        * config/lm32/lm32.c (TARGET_EXCEPT_UNWIND_INFO): New.
        (lm32_block_move_inline): Add type cast to remove warning.
        (lm32_expand_prologue): Generate fp in a way compatible with dwarf2out.
        (gen_int_relational): Move declarations to start of function.

2011-02-25  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/45470
        * tree-vect-data-refs.c (vect_analyze_data_refs): Fail if a statement
        can throw internally only.
        * tree-vect-stmts.c (vectorizable_call): Likewise.

2011-02-24  Anatoly Sokolov  <aesok@post.ru>

        * config/stormy16/stormy16.h (PREFERRED_RELOAD_CLASS,
        PREFERRED_OUTPUT_RELOAD_CLASS): Remove.
        * config/stormy16/stormy16-protos.h
        (xstormy16_preferred_reload_class): Remove.
        * config/stormy16/stormy16.c (xstormy16_preferred_reload_class): Make
        static. Change 'rclass' argument and return type to reg_class_t.
        (TARGET_PREFERRED_RELOAD_CLASS,
        TARGET_PREFERRED_OUTPUT_RELOAD_CLASS): Define.

2011-02-24  Richard Guenther  <rguenther@suse.de>

        * lto-streamer-in.c (input_bb): Do not find referenced vars
        in debug statements.

2011-02-23  Jason Merrill  <jason@redhat.com>

        * common.opt (fabi-version): Document v5 and v6.

2011-02-23  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47849
        * tree-if-conv.c (main_tree_if_conversion): Free postdom info.

2011-02-23  Jie Zhang  <jie@codesourcery.com>

        * opts-common.c (decode_cmdline_option): Print empty string
        argument as "" in decoded->orig_option_with_args_text.
        * gcc.c (execute): Print empty string argument as ""
        in the verbose output.
        (do_spec_1): Keep empty string argument.

2011-02-23  Nathan Froyd  <froydnj@codesourcery.com>

        * config.gcc: Declare score-* and crx-* obsolete.

2011-02-23  Jie Zhang  <jie@codesourcery.com>

        PR rtl-optimization/47763
        * web.c (web_main): Ignore naked clobber when replacing register.

2011-02-22  Anatoly Sokolov  <aesok@post.ru>

        * config/stormy16/stormy16.h (REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P):
        Remove.

2011-02-22  Sebastian Pop  <sebastian.pop@amd.com>

        PR doc/47848
        * doc/invoke.texi: Do not mention -ftree-loop-if-convert-memory-writes.

2011-02-22  Mike Stump  <mikestump@comcast.net>

        * acinclude.m4 (gcc_cv_gas_vers): Add -arch ppc for probing darwin
        assembler.
        * configure: Regenerate.

2011-02-21  Chung-Lin Tang  <cltang@codesourcery.com>

        PR rtl-optimization/46002
        * ira-color.c (update_copy_costs): Change class intersection
        test to reg_class_contents[] test of 'hard_regno'.

2011-02-21  Joseph Myers  <joseph@codesourcery.com>

        * config/alpha/osf5.opt (mno-mips-tfile): Mark as Target rather
        than Driver option.
        * config/hpux11.opt (mt): Likewise.
        * config/microblaze/microblaze.opt (mxl-mode-xilkernel): Likewise.
        * config/rs6000/xilinx.opt (mno-clearbss, mppcperflib): Likewise.
        * config/vax/elf.opt (mno-asm-pic): Likewise.
        * config/vms/vms.opt (map, mvms-return-codes): Likewise.

2011-02-21  Mike Stump  <mikestump@comcast.net>

        PR target/47822
        * config/darwin-protos.h (darwin_init_cfstring_builtins): Return a
        tree so we can get save the type.
        * config/i386/darwin.h (SUBTARGET_INIT_BUILTINS): Reserve builtin slot
        for CFString instead of trying to use past the end of the builtins.
        * config/i386/i386.c (IX86_BUILTIN_CFSTRING): Likewise.
        * config/rs6000/rs6000-builtin.def (RS6000_BUILTIN_CFSTRING): Likewise.
        * config/rs6000/darwin.h (SUBTARGET_INIT_BUILTINS): Likewise.
        * config/darwin.c (DARWIN_BUILTIN_CFSTRINGMAKECONSTANTSTRING):
        Rename to darwin_builtin_cfstring.
        (darwin_init_cfstring_builtins): Return the built type.

2011-02-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/47840
        * config/i386/avxintrin.h (_mm256_insert_epi32): Use _mm_insert_epi32.
        (_mm256_insert_epi64): Use _mm_insert_epi64.

2011-02-21  Anatoly Sokolov  <aesok@post.ru>

        * config/stormy16/stormy16.h (GO_IF_MODE_DEPENDENT_ADDRESS): Remove.
        * config/stormy16/stormy16-protos.h
        (xstormy16_mode_dependent_address_p): Remove.
        * config/stormy16/stormy16.c (xstormy16_mode_dependent_address_p):
        Make static. Change return type to bool. Change argument type to
        const_rtx. Remove dead code.
        (TARGET_MODE_DEPENDENT_ADDRESS_P): Define.

2011-02-21  Richard Guenther  <rguenther@suse.de>

        PR lto/47820
        * lto-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
        Do not stream DECL_INITIAL for TRANSLATION_UNIT_DECLs.
        (lto_input_ts_block_tree_pointers): Hook a BLOCK into the
        TUs context.
        * lto-streamer-out.c (lto_output_ts_decl_common_tree_pointers):
        Do not stream DECL_INITIAL for TRANSLATION_UNIT_DECLs.

2011-02-20  Richard Guenther  <rguenther@suse.de>

        PR lto/47822
        * tree.c (free_lang_data_in_decl): Clean builtins from
        the TU decl BLOCK_VARS.

2011-02-19  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47620
        PR debug/47630
        * haifa-sched.c (fix_tick_ready): Skip tick computation
        for debug insns.

2011-02-19  Richard Guenther  <rguenther@suse.de>

        PR lto/47647
        * lto-streamer-in.c (lto_input_ts_decl_minimal_tree_pointers):
        Remove lazy BLOCK_VARS streaming.
        (lto_input_ts_block_tree_pointers): Likewise.
        * lto-streamer-out.c (lto_output_ts_block_tree_pointers): Likewise.

2011-02-19  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (i[34567]86-pc-msdosdjgpp*): Use i386/djgpp-stdint.h.

2011-02-19  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/biarch32.h, config/i386/mach.h,
        config/rs6000/aix.opt, config/sh/superh64.h: Remove.

2011-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR target/47800
        * config/i386/i386.md (peephole2 for shift and plus): Use
        operands[1] original mode in the first insn.

2011-02-18  Mike Stump  <mikestump@comcast.net>

        * config/t-darwin (TM_H): Add dependency on darwin-sections.def.

2011-02-18  Jan Hubicka  <jh@suse.cz>

        PR middle-end/47788
        * ipa-inline.c (compute_inline_parameters): Set disregard_inline_limits
        to zero when the function is not inlinable at all.

2011-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config.gcc (hppa[12]*-*-hpux11*): Set extra_parts.
        * config/pa/stublib.c (pthread_default_stacksize_np, pthread_mutex_lock,
        pthread_mutex_unlock, pthread_once): Reinstate pthread stubs.
        * config/pa/t-pa-hpux11: Add rules to build pthread stubs.
        * config/pa/t-pa64: Likewise.
        * config/pa/pa-hpux11.h (LINK_GCC_C_SEQUENCE_SPEC): Define.

2011-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR driver/47787
        * gcc.c (default_compilers): Clear combinable field for "@cpp-output".

2011-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR target/47792
        * gthr-dce.h (__gthread_mutx_destroy): Fix typo in name.

2011-02-18  Anatoly Sokolov  <aesok@post.ru>

        * config/m32r/m32r.h (REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
        RTX_OK_FOR_BASE_P, RTX_OK_FOR_OFFSET_P, LEGITIMATE_OFFSET_ADDRESS_P,
        LEGITIMATE_LO_SUM_ADDRESS_P, LOAD_POSTINC_P, STORE_PREINC_PREDEC_P,
        GO_IF_LEGITIMATE_ADDRESS): Remove macros.
        * config/m32r/m32r.c (TARGET_LEGITIMATE_ADDRESS_P): Define.
        (m32r_rtx_ok_for_base_p, m32r_rtx_ok_for_offset_p,
        m32r_legitimate_offset_addres_p, m32r_legitimate_lo_sum_addres_p,
        m32r_load_postinc_p, m32r_store_preinc_predec_p,
        m32r_legitimate_address_p): New functions.
        * config/m32r/constraints.md (constraint "S"): Don't use
        STORE_PREINC_PREDEC_P.
        (constraint "U"): Don't use LOAD_POSTINC_P.

2011-02-18  Chung-Lin Tang  <cltang@codesourcery.com>

        PR rtl-optimization/46178
        * ira.c (setup_hard_regno_class): Use ira_class_translate[] to
        compute ira_hard_regno_cover_class[].

2011-02-18  Richard Guenther  <rguenther@suse.de>

        PR lto/47798
        * lto-streamer.h (lto_global_var_decls): Declare.
        * lto-streamer-in.c (lto_register_var_decl_in_symtab): Register
        statics for global var processing.

2011-02-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47737
        * tree-ssa-loop-im.c (extract_true_false_args_from_phi): Fix
        edge dominance check.

2011-02-18  Jakub Jelinek  <jakub@redhat.com>

        PR debug/47780
        * cfgexpand.c (expand_debug_expr) <case SSA_NAME>: Call copy_rtx to
        avoid invalid rtx sharing.

2011-02-18  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/cpp.texi (Obsolete Features): Add background on the
        origin of assertions.

2011-02-17  Iain Sandoe  <iains@gcc.gnu.org>

        * config/darwin-c.c (darwin_cpp_builtins): Define __OBJC2__ for
        objc_abi == 2.
        * config/darwin.c (output_objc_section_asm_op): Added support for
        ABI v1 and v2.
        (is_objc_metadata): New.
        (darwin_objc2_section): New.
        (darwin_objc1_section): New.
        (machopic_select_section): Added support for ABI v1 and v2.
        (darwin_emit_objc_zeroed): New.
        (darwin_output_aligned_bss): Detect objc metadata and treat it
        appropriately.
        (darwin_asm_output_aligned_decl_common): Same.
        (darwin_asm_output_aligned_decl_local): Same.
        * config/darwin-sections.def: Updated for ABI v1 and v2.
        * config/darwin.h (SUBTARGET_C_COMMON_OVERRIDE_OPTIONS): When
        compiling Objective-C code for the NeXT runtime, default to using
        ABI version 0 for 32-bit, and version 2 for 64-bit.

2011-02-17  Joseph Myers  <joseph@codesourcery.com>

        * common.opt (optimize_fast): New Variable.
        * opts.c (default_options_optimization): Use opts->x_optimize_fast
        instead of local variable ofast.

2011-02-17  Nicola Pero  <nicola.pero@meta-innovation.com>

        * doc/invoke.texi (fobjc-abi-version): Documented.
        (fobjc-nilcheck): Documented.
        (fno-nil-receiver): Updated documentation to refer to the NeXT ABI
        version.

2011-02-17  Joseph Myers  <joseph@codesourcery.com>

        PR driver/47390
        * common.opt (export-dynamic): New Driver option.
        * gcc.c (LINK_COMMAND_SPEC): Add comment about %{e*}.

2011-02-17  Joseph Myers  <joseph@codesourcery.com>

        * config/rx/rx.h (LIB_SPEC): Match -msim not -msim*.

2011-02-17  Alexandre Oliva  <aoliva@redhat.com>
            Jan Hubicka  <jh@suse.cz>

        PR debug/47106
        PR debug/47402
        * cfgexpand.c (account_used_vars_for_block): Remove.
        (estimated_stack_frame_size): Use referenced vars.
        * tree-inline.c (remap_decl): Only mark VAR_DECLs as referenced
        that were referenced in the original function.  Test src_fn
        rather than cfun.  Drop redundant get_var_ann.
        (setup_one_parameter): Drop redundant get_var_ann.
        (declare_return_variable): Likewise.
        (copy_decl_for_dup_finish): Mark VAR_DECLs referenced in src_fn.
        (copy_arguments_for_versioning): Drop redundant get_var_ann.
        * ipa-inline.c (compute_inline_parameters): Do not compute
        disregard_inline_limits here.
        (compute_inlinable_for_current, pass_inlinable): New.
        (pass_inline_parameters): Require PROP_referenced_vars.
        * cgraphunit.c (cgraph_process_new_functions): Don't run
        compute_inline_parameters explicitly unless function is in SSA form.
        (cgraph_analyze_function): Set .disregard_inline_limits.
        * tree-sra.c (convert_callers): Compute inliner parameters
        only for functions already in SSA form.

2011-02-17  Joseph Myers  <joseph@codesourcery.com>

        * config/sparc/sparc.h (CPP_ENDIAN_SPEC): Don't handle
        -mlittle-endian-data.

2011-02-17  Joseph Myers  <joseph@codesourcery.com>

        * config/sparc/linux64.h (OPTION_DEFAULT_SPECS): Match -mfpu and
        -mno-fpu, not -fpu and -no-fpu.
        * config/sparc/sol2-bi.h (OPTION_DEFAULT_SPECS): Likewise.
        * config/sparc/sparc.h (OPTION_DEFAULT_SPECS): Likewise.

2011-02-17  Uros Bizjak  <ubizjak@gmail.com>

        PR target/43653
        * config/i386/i386.c (ix86_secondary_reload): Handle SSE
        input reload with PLUS RTX.

2011-02-16  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.opt (mno-mdmx): Use Var(TARGET_MDMX, 0) instead
        of InverseVar(MDMX).

2011-02-16  Joseph Myers  <joseph@codesourcery.com>

        * config/sh/embed-elf.h (LIBGCC_SPEC): Match -m4-340 instead of
        --m4-340.

2011-02-16  Joseph Myers  <joseph@codesourcery.com>

        * config/mn10300/mn10300.opt (mno-crt0): New.

2011-02-16  Joseph Myers  <joseph@codesourcery.com>

        * config/m68k/uclinux.opt (static-libc): New Driver option.

2011-02-16  Joseph Myers  <joseph@codesourcery.com>

        * config/m32c/m32c.h (LIB_SPEC): Match -msim not -msim*.

2011-02-16  Joseph Myers  <joseph@codesourcery.com>

        * config/lm32/lm32.h (ASM_SPEC): Use %{muser-enabled} instead of
        %{muser-extend-enabled}.

2011-02-16  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47738
        * tree-ssa-loop.c (run_tree_predictive_commoning): Return
        the TODO from tree_predictive_commoning.

2011-02-15  Jeff Law  <law@redhat.com>

        Revert
        2011-01-25  Jeff Law  <law@redhat.com>

        PR rtl-optimization/37273
        * ira-costs.c (scan_one_insn): Detect constants living in memory and
        handle them like argument loads from stack slots.  Do not double
        count memory for memory constants and argument loads from stack slots.

2011-02-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/47725
        * combine.c (cant_combine_insn_p): Revert the last change.

2011-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/47755
        * config/rs6000/predicates.md (easy_vector_constant): Allow V2DI
        mode for vector constants.  Remove code that checks for TImode.

2011-02-15  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47106
        PR debug/47402
        * cgraph.h (compute_inline_parameters): Return void.
        * ipa-inline.c (compute_inline_parameters): Adjust.

2011-02-15  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47106
        PR debug/47402
        * tree-inline.h (estimated_stack_frame_size): Take cgraph node
        rather than decl.
        * cfgexpand.c (estimated_stack_frame_size): Likewise.
        * ipa-inline.c (compute_inline_parameters): Adjust.

2011-02-15  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47106
        PR debug/47402
        * tree-flow.h (FOR_EACH_REFERENCED_VAR): Add FN argument.
        Adjust all users.  Pass FN to...
        * tree-flow-inline.h (first_referenced_var): ... this.  Add
        fn argument.
        * ipa-struct-reorg.c: Adjust.
        * tree-dfa.c: Adjust.
        * tree-into-ssa.c: Adjust.
        * tree-sra.c: Adjust.
        * tree-ssa-alias.c: Adjust.
        * tree-ssa-live.c: Adjust.
        * tree-ssa.c: Adjust.
        * tree-ssanames.c: Adjust.
        * tree-tailcall.c: Adjust.

2011-02-15  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47106
        PR debug/47402
        * tree-flow.h (referenced_var_lookup): Add fn parameter.
        Adjust all callers.
        * tree-dfa.c (referenced_var_lookup): Use fn instead of cfun.
        * tree-flow-inline.h: Adjust.
        * gimple-pretty-print.c: Adjust.
        * tree-into-ssa.c: Adjust.
        * tree-ssa.c: Adjust.
        * cfgexpand.c: Adjust.

2011-02-15  Nathan Froyd  <froydnj@codesourcery.com>

        * config/iq2000/i2000.h (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.
        * config/iq2000/constraints.md: New file.
        * config/iq2000/iq2000.md: Include it.
        (define_insn ""): Delete.
        (movsi_internal2, movhi_internal2, movqi_internal2): Delete
        unsupported constraint letters from patterns.
        (call_value, call_value_internal1): Likewise.
        (call_value_multiple_internal1): Likewise.

2011-02-15  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.c: Include tm-constrs.h.
        (struct liw_data): New data structure describing an LIW candidate
        instruction.
        (extract_bundle): Use struct liw_data.  Allow small integer
        operands for some instructions.
        (check_liw_constraints): Use struct liw_data.  Remove swapped
        parameter.  Add comments describing the checks.  Fix bug when
        assigning the source of liw1 to the source of liw2.
        (liw_candidate): Delete.  Code moved into extract_bundle.
        (mn10300_bundle_liw): Use struct liw_data.  Check constraints
        before swapping.
        * config/mn10300/predicates.md (liw_operand): New predicate.
        Allows registers and small integer constants.
        * config/mn10300/constraints.md (O): New constraint.  Accetps
        integers in the range -8 to +7 inclusive.
        * config/mn10300/mn10300.md (movesi_internal): Add an alternative
        for moving a small integer into a register.  Give this alternative
        LIW attributes.
        (addsi3, subsi3, cmpsi, lshrsi3, ashrsi3): Likewise.
        (ashlsi3): Likewise, plus give LIW attributes to the alternatives
        using the J,K,L and M constraints,
        (liw): Remove SI mode on second operands to allow for HI and QI
        mode values.
        (cmp_liw, liw_cmp): Likewise.  Plus fix order of operands in the
        instruction.

2011-02-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR middle-end/47725
        * combine.c (cant_combine_insn_p): Check zero/sign extended
        hard registers.

2011-02-15  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47743
        * tree-ssa-pre.c (phi_translate_1): If we didn't get a value-number
        for a non-type-compatible VN lookup bail out.

2011-02-15  Nathan Froyd  <froydnj@codesourcery.com>

        * config/fr30/constraints.md: New file.
        * config/fr30/fr30.md: Include it.
        * config/fr30/fr30.h (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.

2011-02-15  Nathan Froyd  <froydnj@codesourcery.com>

        * config/frv/constraints.md: New file.
        * config/frv/predicates.md: Include it.
        * config/frv/frv.c (reg_class_from_letter): Delete.
        (frv_option_override): Don't initialize it.
        * config/frv/frv.h (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_I, CONST_OK_FOR_J, CONST_OK_FOR_K): Delete.
        (CONST_OK_FOR_L, CONST_OK_FOR_M, CONST_OK_FOR_N): Delete.
        (CONST_OK_FOR_O, CONST_OK_FOR_P, CONST_OK_FOR_LETTER_P): Delete.
        (CONST_DOUBLE_OK_FOR_G, CONST_DOUBLE_OK_FOR_H): Delete.
        (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT_FOR_Q, EXTRA_CONSTRAINT_FOR_R): Delete.
        (EXTRA_CONSTRAINT_FOR_S, EXTRA_CONSTRAINT_FOR_T): Delete.
        (EXTRA_CONSTRAINT_FOR_U, EXTRA_CONSTRAINT): Delete.
        (EXTRA_MEMORY_CONSTRAINT, CONSTRAINT_LEN): Delete.
        (REG_CLASS_FROM_CONSTRAINT): Delete.

2011-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/47581
        * config/i386/i386.c (ix86_compute_frame_size): Don't align offset
        if frame size is 0 in a leaf function.

2011-02-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR pch/14940
        * config/alpha/host-osf.c: New file.
        * config/alpha/x-osf: New file.
        * config.host (alpha*-dec-osf*): Use it.

2011-02-14  Anatoly Sokolov  <aesok@post.ru>

        * config/rx/rx.h (GO_IF_MODE_DEPENDENT_ADDRESS): Remove.
        * config/rx/rx-protos.h (rx_is_mode_dependent_addr): Remove.
        * config/xtensa/xtensa.c (rx_is_mode_dependent_addr): Rename to...
        (rx_mode_dependent_address_p): ...this. Make static. Change argument
        type to const_rtx.
        (TARGET_MODE_DEPENDENT_ADDRESS_P): Define.

2011-02-14  Nathan Froyd  <froydnj@codesourcery.com>

        * config/stormy16/constraints.md: New file.
        * config/stormy16/predicates.md (nonimmediate_nonstack_operand):
        Use satisfies_constraint_Q and satisfies_constraint_R.
        * config/stormy16/stomry16-protos.h (xstormy16_extra_constraint_p):
        Delete.
        (xstormy16_legitiamte_address_p): Declare.
        * config/stormy16/stormy16.h (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.
        * config/stormy16/stormy16.c (xstormy16_legitimate_address_p):
        Un-staticize.
        (xstormy16_extra_constraint_p): Delete.

2011-02-14  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/46494
        * loop-unroll.c (split_edge_and_insert): Adjust comment.
        * loop-init.c (loop_optimizer_finalize): Do not call verify_flow_info.
        (pass_rtl_loop_done): Add TODO_verify_flow.
        * fwprop.c (pass_rtl_fwprop): Likewise.
        * modulo-sched.c (pass_sms): Likewise.
        * tree-ssa-dom.c (pass_dominator): Likewise.
        * tree-ssa-loop-ch.c (pass_ch): Likewise.
        * tree-ssa-loop.c (pass_complete_unrolli): Likewise.
        (pass_tree_loop_done): Likewise.
        * tree-ssa-pre.c (execute_pre): Likewise.
        * tree-ssa-reassoc.c (pass_reassoc): Likewise.
        * tree-ssa-sink.c (pass_sink_code): Likewise.
        * tree-vrp.c (pass_vrp): Likewise.

2011-02-14  Nathan Froyd  <froydnj@codesourcery.com>

        * config/v850/constraints.md: New file.
        * config/v850/v850.md: Include it.
        * config/v850/predicates.md (reg_or_0_operand): Use
        satisfies_constraint_G.
        (special_symbolref_operand): Use satisfies_constraint_K.
        * config/v850/v850.h (CONSTANT_ADDRESS_P): Use constraint_satisfied_p.
        (GO_IF_LEGITIMATE_ADDRESS): Likewise.
        (REG_CLASS_FROM_LETTER, INT_7_BITS, INT_8_BITS): Delete.
        (CONST_OK_FOR_P, CONST_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.
        (CONST_OK_FOR_I, CONST_OK_FOR_J): Use insn_const_int_ok_for_constraint.
        (CONST_OK_FOR_K, CONST_OK_FOR_L, CONST_OK_FOR_M): Likewise.
        (CONST_OK_FOR_N, CONST_OK_FOR_O): Likewise.

2011-02-14  Anatoly Sokolov  <aesok@post.ru>

        PR target/47696
        * config/avr/avr-devices.c (avr_mcu_types): Fix ATmega2560 device
        description.

2011-02-14  Nathan Froyd  <froydnj@codesourcery.com>

        * config/mcore/constraints.md: New file.
        * config/mcore/mcore.md: Include it.
        * config/mcore/mcore.c (reg_class_from_letter): Delete.
        * config/mcore/mcore.h (reg_class_from_letter): Delete.
        (REG_CLASS_FROM_LETTER): Delete.
        (CONST_OK_FOR_I, CONST_OK_FOR_J, CONST_OK_FOR_L): Use
        insn_const_int_ok_for_constraint.
        (CONST_OK_FOR_K, CONST_OK_FOR_M, CONST_OK_FOR_N): Likewise.
        (CONST_OK_FOR_O, CONST_OK_FOR_P): Likewise.
        (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
        (EXTRA_CONSTRAINT): Delete.

2011-02-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR ada/41929
        * config/sparc/sol2-unwind.h: Include <sys/frame.h>, <sys/stack.h>
        (IS_SIGHANDLER): Define.
        (sparc64_is_sighandler): New function, split off from
        sparc64_fallback_frame_state.
        (sparc_is_sighandler): New function, split off from
        sparc_fallback_frame_state.
        (sparc64_fallback_frame_state): Merge with ...
        (sparc_fallback_frame_state): ... this into ...
        (MD_FALLBACK_FRAME_STATE_FOR): ... this.
        Change new_cfa to long.  Remove regs_off, fpu_save_off, fpu_save.
        Define nframes, mctx.  Use IS_SIGHANDLER, handler_args, mctx, walk
        stack instead of hardcoded offsets.

2011-02-14  Andriy Gapon  <avg@freebsd.org>

        PR target/45808
        * config/freebsd-spec.h (FBSD_LIB_SPEC): Handle the shared case.

2011-02-13  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

        * configure: Regenerate.

2011-02-12  Joseph Myers  <joseph@codesourcery.com>

        PR driver/45731
        * gcc.c (asm_options): Correct spec matching --target-help.

2011-02-12  Martin Jambor  <mjambor@suse.cz>

        * tree-cfg.c (verify_gimple_call): Return true upon invalid argument
        to gimple call error.

2011-02-12  Mike Stump  <mikestump@comcast.net>

        * config/frv/frv.h (TRANSFER_FROM_TRAMPOLINE): Canonicalize
        comments in backslash regions.

2011-02-12  Mike Stump  <mikestump@comcast.net>
            Jakub Jelinek  <jakub@redhat.com>
            Iain Sandoe  <iains@gcc.gnu.org>

        PR target/47324
        * dwarf2out.c (output_cfa_loc): When required, apply the
        DWARF2_FRAME_REG_OUT macro to adjust register numbers.
        (output_loc_sequence): Likewise.
        (output_loc_operands_raw): Likewise.
        (output_loc_sequence_raw): Likewise.
        (output_cfa_loc): Likewise.
        (output_loc_list): Suppress register number adjustment when
        calling output_loc_sequence()
        (output_die): Likewise.

2011-02-12  Anatoly Sokolov  <aesok@post.ru>

        * config/xtensa/xtensa.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST):
        Remove macros.
        * config/xtensa/xtensa.c (xtensa_register_move_cost,
        xtensa_memory_move_cost): New functions.
        (TARGET_REGISTER_MOVE_COST, TARGET_REGISTER_MOVE_COST): Define.

2011-02-12  Alexandre Oliva  <aoliva@redhat.com>

        PR lto/47225
        * configure.ac (gcc_cv_lto_plugin): Test for liblto_plugin.la
        in the current directory.
        * configure: Rebuilt.

2011-02-12  Iain Sandoe  <iains@gcc.gnu.org>

        * config/darwin.c (darwin_override_options): Add a hunk missed
        from the commit of r168571.  Trim comment line lengths and
        correct indents of the preceding block.

2011-02-12  Iain Sandoe  <iains@gcc.gnu.org>

        * gcc.c (driver_handle_option): Concatenate the argument to -F with
        the switch.

2011-02-11  Joseph Myers  <joseph@codesourcery.com>

        * common.opt (nostartfiles): New Driver option.

2011-02-11  Xinliang David Li  <davidxl@google.com>

        PR tree-optimization/47707
        * tree-chrec.c (convert_affine_scev): Keep type precision.

2011-02-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/47420
        * ipa-split.c (visit_bb): Punt on any kind of GIMPLE_RESX.

2011-02-11  Pat Haugen  <pthaugen@us.ibm.com>

        PR rtl-optimization/47614
        * rtl.h (check_for_inc_dec): Declare.
        * dse.c (check_for_inc_dec): Externalize...
        * postreload.c (reload_cse_simplify): ...use it before deleting stmt.
        (reload_cse_simplify_operands): Don't simplify opnds with side effects.

2011-02-11  Joseph Myers  <joseph@codesourcery.com>

        PR driver/47678
        * gcc.c (main): Do not compile inputs if there were errors in
        option handling.
        * opts-common.c (read_cmdline_option): Check for wrong language
        after other error checks.

2011-02-11  Nathan Froyd  <froydnj@codesourcery.com>

        * cgraph.c: Fix comment typos.
        * cgraph.h: Likewise.
        * cgraphunit.c: Likewise.
        * ipa-cp.c: Likewise.
        * ipa-inline.c: Likewise.
        * ipa-prop.c: Likewise.
        * ipa-pure-const.c: Likewise.
        * ipa-ref.c: Likewise.
        * ipa-reference.c: Likewise.

2011-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR debug/47684
        * tree-predcom.c (single_nonlooparound_use): Ignore debug uses.

2011-02-11  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR testsuite/47400
        * doc/sourcebuild.texi (Require Support): Document
        dg-require-ascii-locale.

2011-02-11  Mingjie Xing  <mingjie.xing@gmail.com>

        * doc/lto.texi (Write summary): Fix missing parentheses.

2011-02-10  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.c (m32c_option_override): Disable
        -fcombine-stack-adjustments until flag value tracking and compare
        optimization can be rewritten.

2011-02-10  Peter Bergner  <bergner@vnet.ibm.com>

        * config/rs6000/linux64.h (PROCESSOR_DEFAULT): Change to
        PROCESSOR_POWER7.
        (PROCESSOR_DEFAULT64): Likewise.

2011-02-10  Richard Henderson  <rth@redhat.com>

        * config/rx/predicates.md (rx_zs_comparison_operator): Revert
        change from 2011-02-03.
        * config/rx/rx.c (flags_from_code): Likewise.
        (rx_print_operand) ['B']: For LT/GE, use lt/ge if overflow flag
        is valid, n/pz otherwise.
        (rx_select_cc_mode): Return CCmode if Y is not zero.

2011-02-10  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (bitpos_of_field): Use BITS_PER_UNIT, not 8.

2011-02-10  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47677
        * tree-vrp.c (vrp_bitmap_equal_p): Fix comparison of empty bitmaps.

2011-02-10  Jakub Jelinek  <jakub@redhat.com>

        PR target/47665
        * combine.c (make_compound_operation): Only change shifts into
        multiplication for SCALAR_INT_MODE_P.

2011-02-10  Jie Zhang  <jie@codesourcery.com>

        PR testsuite/47622
        Revert
        2011-02-05  Jie Zhang  <jie@codesourcery.com>
        PR debug/42631
        * web.c (entry_register): Don't clobber the number of the
        first uninitialized reference in used[].

2011-02-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47664
        * ipa-inline.c (cgraph_decide_inlining_incrementally): Visit
        all edges again.

2011-02-09  David Edelsohn  <dje.gcc@gmail.com>

        PR target/46481
        PR target/47032
        * config/rs6000/aix61.h (PROCESSOR_DEFAULT): Change to
        PROCESSOR_POWER7.
        (PROCESSOR_DEFAULT64): Same.
        (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Delete.

2011-02-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/mips/iris6.h (TARGET_C99_FUNCTIONS): Define.

2011-02-09  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/45505
        * tree-sra.c (struct access): New flags grp_scalar_read and
        grp_scalar_write.  Changed description of assignment read and write
        flags.
        (dump_access): Dump new flags, reorder all of them.
        (sort_and_splice_var_accesses): Set the new flag accordingly, use them
        to detect multiple scalar reads.
        (analyze_access_subtree): Use the new scalar read write flags instead
        of the old flags.  Adjusted comments.

2011-02-08  DJ Delorie  <dj@redhat.com>

        PR target/47548
        * config/m32c/m32c.c (m32c_subreg): Don't try to validate interim
        patterns.

2011-02-08  Joseph Myers  <joseph@codesourcery.com>

        * config/m68k/uclinux.opt: New.
        * config.gcc (m68k-*-uclinux*): Use m68k/uclinux.opt.

2011-02-08  Joseph Myers  <joseph@codesourcery.com>

        * config/cris/elf.opt (sim): New Driver option.

2011-02-08  Joseph Myers  <joseph@codesourcery.com>

        * config/xtensa/elf.opt: New.
        * config.gcc (xtensa*-*-elf*): Use xtensa/elf.opt.

2011-02-08  Joseph Myers  <joseph@codesourcery.com>

        * config/vax/elf.opt: New.
        * config.gcc (vax-*-linux*, vax-*-netbsdelf*): Use vax/elf.opt.

2011-02-08  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/aix64.opt (posix, pthread): New Driver options.

2011-02-08  Joseph Myers  <joseph@codesourcery.com>

        * config/gnu-user.opt: New.
        * config.gcc (*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu |
        *-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu,
        *-*-uclinux*): Use gnu-user.opt.

2011-02-08  Thomas Schwinge  <thomas@schwinge.name>

        * config/gnu.h (CPP_SPEC, LIB_SPEC): Remove handling of -bsd option.
        * config/i386/gnu.h (CPP_SPEC): Likewise.

2011-02-08  Ian Lance Taylor  <iant@google.com>

        * common.opt (fcx-limited-range): Add SetByCombined flag.
        (ffinite-math-only, fmath-errno, frounding-math): Likewise.
        (fsignaling-nans, fsigned-zeros, ftrapping-math): Likewise.
        (fassociative-math, freciprocal-math): Likewise.
        (funsafe-math-optimizations): Likewise.
        * opth-gen.awk: Handle SetByCombined.
        * optc-gen.awk: Likewise.
        * opts.c (set_fast_math_flags): Don't override flag if set by frontend.
        (set_unsafe_math_optimizations_flags): Likewise.
        * doc/options.texi (Option properties): Document SetByCombined.

2011-02-08  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (arc-*, alpha*-*-gnu*, arm*-*-netbsd*, arm-*-pe*,
        i[34567]86-*-interix3*, i[34567]86-*-netbsd*, i[34567]86-*-pe,
        m68hc11-*-*, m6811-*-*, m68hc12-*-*, m6812-*-*,
        m68k-*-uclinuxoldabi*, mcore-*-pe*, powerpc*-*-gnu*,
        sh*-*-symbianelf*, vax-*-netbsd*): Mark obsolete.

2011-02-08  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/46834
        PR tree-optimization/46994
        PR tree-optimization/46995
        * graphite-sese-to-poly.c (used_outside_reduction): New.
        (detect_commutative_reduction): Call used_outside_reduction.
        (rewrite_commutative_reductions_out_of_ssa_close_phi): Call
        translate_scalar_reduction_to_array only when at least one
        loop-phi/close-phi tuple has been detected.

2011-02-08  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47639
        * tree-vect-generic.c (expand_vector_operations_1): Update
        stmts here ...
        (expand_vector_operations): ... not here.  Cleanup EH info
        and the CFG if required.

2011-02-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47641
        * tree-ssa.c (execute_update_addresses_taken): For asm outputs
        require type compatibility.

2011-02-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * gimple-low.c (lower_function_body): Don't remove the location of
        the return statement here.
        (lower_gimple_return): Do it here instead but only if the return
        statement is actually used twice.

2011-02-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47632
        * tree-ssa-forwprop.c (remove_prop_source_from_use): Remove
        unused up_to_stmt parameter, return whether cfg-cleanup is
        necessary, remove EH info properly.
        (forward_propagate_into_gimple_cond): Adjust caller.
        (forward_propagate_into_cond): Likewise.
        (forward_propagate_comparison): Likewise.
        (tree_ssa_forward_propagate_single_use_vars): Make
        forward_propagate_comparison case similar to the two others.

2011-02-08  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.opt (mliw): New command line option.
        * config/mn10300/mn10300.md (UNSPEC_LIW): New unspec.
        (liw_bundling): New automaton.
        (liw): New attribute.
        (liw_op): New attribute.
        (liw_op1, liw_op2, liw_both, liw_either): New reservations.
        (movsi_internal): Add LIW attributes.
        (andsi3): Likewise.
        (iorsi3): Likewise.
        (xorsi3): Likewise.
        (addsi3): Separate register and immediate alternatives.
        Add LIW attributes.
        (subsi3): Likewise.
        (cmpsi): Likewise.
        (aslsi3): Likewise.
        (lshrsi3): Likewise.
        (ashrsi3): Likewise.
        (liw): New pattern.
        * config/mn10300/mn10300.c (liw_op_names): New
        (mn10300_print_operand): Handle 'W' operand descriptor.
        (extract_bundle): New function.
        (check_liw_constraints): New function.
        (liw_candidate): New function.
        (mn10300_bundle_liw): New function.
        (mn10300_reorg): New function.
        (TARGET_MACHINE_DEPENDENT_REORG): Define.
        (TARGET_DEFAULT_TARGET_FLAGS): Add MASK_ALLOW_LIW.
        * config/mn10300/mn10300.h (TARGET_CPU_CPP_BUILTINS): Define
        __LIW__ or __NO_LIW__.
        * doc/invoke.texi: Describe the -mliw command line option.

2011-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * config.gcc (hppa[12]*-*-hpux11*): Don't set extra_parts.
        * config/pa/stublib.c (pthread_default_stacksize_np, pthread_mutex_lock,
        pthread_mutex_unlock): Remove.
        * config/pa/t-pa-hpux11: Remove rules to build pthread stubs.
        * config/pa/t-pa64: Likewise.
        * config/pa/pa64-hpux.h (LIB_SPEC): In static links, link against
        shared libc if not linking against libpthread.
        * config/pa/pa-hpux11.h (LIB_SPEC): Likewise.

2011-02-07  Iain Sandoe  <iains@gcc.gnu.org>

        PR target/47558
        * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Put -lSystem first
        on 10.6 and later to ensure that we always use the unwinder from
        the system.  Only add -no_compact_unwind when tarteting darwin
        10.6 or later.

2011-02-07  Steve Ellcey  <sje@cup.hp.com>

        PR target/46997
        * vect.md (vec_interleave_highv2sf): Change fmix for TARGET_BIG_ENDIAN.
        (vec_interleave_lowv2sf): Ditto.
        (vec_extract_evenv2sf): Add TARGET_BIG_ENDIAN check.
        (vec_extract_oddv2sf): Ditto.

2011-02-07  Mike Stump  <mikestump@comcast.net>

        PR target/42333
        Add __ieee_divdc3 entry point.
        * config/i386/darwin.h (DECLARE_LIBRARY_RENAMES): Retain ___divdc3
        entry point.
        (SUBTARGET_INIT_BUILTINS): Call darwin_rename_builtins.
        * config/i386/i386.c (TARGET_INIT_LIBFUNCS): Likewise.
        * config/darwin.c (darwin_rename_builtins): Add.
        * config/darwin-protos.h (darwin_rename_builtins): Add.

2011-02-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/47636
        * config/rs6000/rs6000.md (rsqrt<mode>2): Use the correct macro
        for the condition.

2011-02-07  Mike Stump  <mikestump@comcast.net>

        * config/darwin.opt (mmacosx-version-min): Update default OS version.

2011-02-07  Denis Chertykov  <chertykov@gmail.com>

        PR target/47534
        * config/avr/libgcc.S (exit): Move .endfunc

2011-02-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47615
        * tree-ssa-sccvn.h (run_scc_vn): Take a vn-walk mode argument.
        * tree-ssa-sccvn.c (default_vn_walk_kind): New global.
        (run_scc_vn): Initialize it.
        (visit_reference_op_load): Use it.
        * tree-ssa-pre.c (execute_pre): Use VN_WALK if in PRE.

2011-02-07  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.c (spu_init_libfuncs): Install SImode and
        DImode trapping arithmetic libfuncs.

2011-02-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47621
        * tree-ssa.c (non_rewritable_lvalue_p): New function, split out from
        two duplicates ...
        (execute_update_addresses_taken): ... here.  Make it more
        conservative in what we accept.

2011-02-06  Joseph Myers  <joseph@codesourcery.com>

        * config/sparc/freebsd.h (ASM_SPEC): Define.
        * config/sparc/vxworks.h (ASM_SPEC): Define.

2011-02-06  Joseph Myers  <joseph@codesourcery.com>

        * config/sparc/sol2-bi.h (CC1_SPEC): Remove %{sun4:} %{target:}.

2011-02-06  Steven Bosscher  <steven@gcc.gnu.org>

        * doc/invoke.texi: Remove reference to compiler internals from
        user documentation.

        * reg-notes.def: Remove REG_VALUE_PROFILE.
        * combine.c (distribute_notes): Do not handle REG_VALUE_PROFILE.

2011-02-05  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/47610
        * varasm.c (default_section_type_flags): If decl is NULL,
        and name is .data.rel.ro or .data.rel.ro.local, set SECTION_RELRO bit.

2011-02-05  Jie Zhang  <jie@codesourcery.com>

        PR debug/42631
        * web.c (entry_register): Don't clobber the number of the
        first uninitialized reference in used[].

2011-02-04  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/46194
        * tree-data-ref.c (analyze_miv_subscript): Remove comment.
        (build_classic_dist_vector_1): Do not represent classic distance
        vectors when the access functions are variating in different loops.

2011-02-04  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/iris6.opt: New.
        * config.gcc (mips-sgi-irix6.5*): Use mips/iris6.opt.

2011-02-04  Richard Henderson  <rth@redhat.com>
            Steve Ellcey  <sje@cup.hp.com>

        PR target/46997
        * config/ia64/predicates.md (mux1_brcst_element): New.
        * config/ia64/ia64-protos.h (ia64_unpack_assemble): New.
        * config/ia64/ia64.c (ia64_unpack_assemble): New.
        (ia64_unpack_sign): New.
        (ia64_expand_unpack): Rewrite using new routines.
        (ia64_expand_widen_sum): Ditto.
        (ia64_expand_dot_prod_v8qi): Ditto.
        * config/ia64/vect.md (mulv8qi3): Rewrite to use new
        routines, add endian check.
        (pmpy2_even): Rename from pmpy2_r, add endian check.
        (pmpy2_odd): Rename from pmpy2_l, add endian check.
        (vec_widen_smult_lo_v4hi): Rewrite using new routines.
        (vec_widen_smult_hi_v4hi): Ditto.
        (vec_widen_umult_lo_v4hi): Ditto.
        (vec_widen_umult_hi_v4hi): Ditto.
        (mulv2si3): Change endian checks.
        (sdot_prodv4hi): Rewrite with new calls.
        (udot_prodv4hi): New.
        (vec_pack_ssat_v4hi): Add endian check.
        (vec_pack_usat_v4hi): Ditto.
        (vec_pack_ssat_v2si): Ditto.
        (max1_even): Rename from max1_r, add endian check.
        (max1_odd): Rename from max1_l, add endian check.
        (*mux1_rev): Format change.
        (*mux1_mix): Ditto.
        (*mux1_shuf): Ditto.
        (*mux1_alt): Ditto.
        (*mux1_brcst_v8qi): Use new predicate.
        (vec_extract_evenv8qi): Remove endian check.
        (vec_extract_oddv8qi): Ditto.
        (vec_interleave_lowv4hi): Format change.
        (vec_interleave_highv4hi): Ditto.
        (mix2_even): Rename from mix2_r, add endian check.
        (mix2_odd): Rename from mux2_l, add endian check.
        (*mux2): Fix mask setting for TARGET_BIG_ENDIAN.
        (vec_extract_evenodd_helper): Format change.
        (vec_extract_evenv4hi): Remove endian check.
        (vec_extract_oddv4hi): Remove endian check.
        (vec_interleave_lowv2si): Format change.
        (vec_interleave_highv2si): Format change.
        (vec_initv2si): Remove endian check.
        (vecinit_v2si): Add endian check.
        (reduc_splus_v2sf): Add endian check.
        (reduc_smax_v2sf): Ditto.
        (reduc_smin_v2sf): Ditto.
        (vec_initv2sf): Remove endian check.
        (fpack): Add endian check.
        (fswap): Add endian check.
        (vec_interleave_highv2sf): Add endian check.
        (vec_interleave_lowv2sf): Add endian check.
        (fmix_lr): Add endian check.
        (vec_setv2sf): Format change.
        (*vec_extractv2sf_0_be): Use shift to extract operand.
        (*vec_extractv2sf_1_be): New.
        (vec_pack_trunc_v4hi): Add endian check.
        (vec_pack_trunc_v2si): Format change.

2011-02-04  Jakub Jelinek  <jakub@redhat.com>

        PR inline-asm/23200
        * tree-ssa-ter.c (is_replaceable_p): Add TER argument.  Don't
        do bb, locus and block comparison and disallow loads if it is not set.
        (stmt_is_replaceable_p): New function.
        (process_replaceable, find_replaceable_in_bb): Adjust is_replaceable_p
        callers.
        * expr.c (expand_expr_real_1) <case SSA_NAME>: If
        get_gimple_for_ssa_name try for EXPAND_INITIALIZER harder to use
        SSA_NAME_DEF_STMT.
        * tree-flow.h (stmt_is_replaceable_p): New prototype.

2011-02-04  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/xilinx.opt: New.
        * config.gcc (powerpc-xilinx-eabi*): Use rs6000/xilinx.opt.

2011-02-04  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/mips.opt (EB, EL, noasmopt): New Driver options.

2011-02-03  Anatoly Sokolov  <aesok@post.ru>

        * config/xtensa/xtensa.h (PREFERRED_RELOAD_CLASS,
        PREFERRED_OUTPUT_RELOAD_CLASS): Remove.
        * config/xtensa/xtensa-protos.h (xtensa_preferred_reload_class,
        secondary_reload_info, xtensa_secondary_reload): Remove.
        * config/xtensa/xtensa.c (TARGET_PREFERRED_RELOAD_CLASS,
        TARGET_PREFERRED_OUTPUT_RELOAD_CLASS): Define.
        (xtensa_preferred_reload_class): Make static. Change return and
        'rclass' argument type to reg_class_t. Remove 'isoutput' argument.
        Use CONST_DOUBLE_P predicate.
        (xtensa_preferred_output_reload_class): New function.
        (xtensa_secondary_reload): Make static.

2011-02-03  Joseph Myers  <joseph@codesourcery.com>

        * config/microblaze/microblaze.opt (Zxl-mode-bootstrap,
        Zxl-mode-executable, Zxl-mode-novectors, Zxl-mode-xilkernel,
        Zxl-mode-xmdstub, mxl-mode-xilkernel): New Driver options.

2011-02-03  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/31490
        * output.h (SECTION_RELRO): Define.
        (SECTION_MACH_DEP): Adjust.
        (get_variable_section): New prototype.
        * varpool.c (varpool_finalize_named_section_flags): New function.
        (varpool_assemble_pending_decls): Call it.
        * cgraph.h (varpool_finalize_named_section_flags): New prototype.
        * cgraphunit.c (cgraph_output_in_order): Call
        varpool_finalize_named_section_flags.
        * varasm.c (get_section): Allow section flags conflicts between
        relro and read-only sections if the section hasn't been declared yet.
        Set SECTION_OVERRIDE after diagnosing section type conflict.
        (get_variable_section): No longer static.
        (default_section_type_flags): Use SECTION_WRITE | SECTION_RELRO for
        readonly sections that need relocations.
        (decl_readonly_section_1): New function.
        (decl_readonly_section): Use it.

        Revert:
        2010-11-17  Dinar Temirbulatov  <dtemirbulatov@gmail.com>
                    Steve Ellcey  <sje@cup.hp.com>

        PR middle-end/31490
        * varasm.c (categorize_decl_for_section): Ignore reloc_rw_mask
        if section attribute used.

2011-02-03  Jakub Jelinek  <jakub@redhat.com>

        * config/darwin.h (SECTION_NO_ANCHOR): Remove.
        * config/darwin.c (SECTION_NO_ANCHOR): Define.
        (darwin_init_sections): Remove assertion.

2011-02-03  Nick Clifton  <nickc@redhat.com>

        * config/rx/predicates.md (rx_zs_comparison_operator): Remove
        lt and ge.
        * config/rx/rx.md (abssi2_flags): Use CC_ZSmode rather than CC_ZSOmode.
        * config/rx/rx.c (rx_print_operand): Use "lt" and "ge" suffixes
        instead of "n" and "pz".
        (flags_from_code): LT and GE tests need CC_FLAG_O as well as
        CC_FLAG_S.

2011-02-03  Jakub Jelinek  <jakub@redhat.com>

        PR target/47312
        * expr.c (expand_expr_real_2) <case FMA_EXPR>: If target doesn't expand
        fma, expand FMA_EXPR as fma{,f,l} call.

        PR lto/47274
        * lto-streamer-out.c (write_symbol): When writing kind and visibility,
        copy them into a unsigned char variable and pass address of it to
        lto_output_data_stream.

        PR target/47564
        * toplev.c (target_reinit): Save and restore *crtl and regno_reg_rtx
        around backend_init_target and lang_dependent_init_target calls.
        * cgraphunit.c (cgraph_debug_gimple_stmt): New function.
        (verify_cgraph_node): Don't call set_cfun here.  Use
        cgraph_debug_gimple_stmt instead of debug_gimple_stmt.
        Set error_found for incorrectly represented calls to thunks.

2011-02-03  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/43092
        PR rtl-optimization/43494
        * rtl.h (for_each_inc_dec_fn): New type.
        (for_each_inc_dec): Declare.
        * rtlanal.c (struct for_each_inc_dec_ops): New type.
        (for_each_inc_dec_find_inc_dec): New fn.
        (for_each_inc_dec_find_mem): New fn.
        (for_each_inc_dec): New fn.
        * dse.c (struct insn_size): Remove.
        (replace_inc_dec, replace_inc_dec_mem): Remove.
        (emit_inc_dec_insn_before): New fn.
        (check_for_inc_dec): Use it, along with for_each_inc_dec.
        (canon_address): Pass mem modes to cselib_lookup.
        * cselib.h (cselib_lookup): Add memmode argument.  Adjust callers.
        (cselib_lookup_from_insn): Likewise.
        (cselib_subst_to_values): Likewise.
        * cselib.c (find_slot_memmode): New var.
        (cselib_find_slot): New fn.  Use it instead of
        htab_find_slot_with_hash everywhere.
        (entry_and_rtx_equal_p): Use find_slot_memmode.
        (autoinc_split): New fn.
        (rtx_equal_for_cselib_p): Rename and implement in terms of...
        (rtx_equal_for_cselib_1): ... this.  Take memmode, pass it on.
        Deal with autoinc.  Special-case recursion into MEMs.
        (cselib_hash_rtx): Likewise.
        (cselib_lookup_mem): Infer pmode from address mode.  Distinguish
        address and MEM modes.
        (cselib_subst_to_values): Add memmode, pass it on.
        Deal with autoinc.
        (cselib_lookup): Add memmode argument, pass it on.
        (cselib_lookup_from_insn): Add memmode.
        (cselib_invalidate_rtx): Discard obsolete push_operand handling.
        (struct cselib_record_autoinc_data): New.
        (cselib_record_autoinc_cb): New fn.
        (cselib_record_sets): Use it, along with for_each_inc_dec.  Pass MEM
        mode to cselib_lookup.  Reset autoinced REGs here instead of...
        (cselib_process_insn): ... here.
        * var-tracking.c (replace_expr_with_values, use_type): Pass MEM mode
        to cselib_lookup.
        (add_uses): Likewise, also to cselib_subst_to_values.
        (add_stores): Likewise.
        * sched-deps.c  (add_insn_mem_dependence): Pass mode to
        cselib_subst_to_values.
        (sched_analyze_1, sched_analyze_2): Likewise.  Adjusted.
        * gcse.c (do_local_cprop): Adjusted.
        * postreload.c (reload_cse_simplify_set): Adjusted.
        (reload_cse_simplify_operands): Adjusted.
        * sel-sched-dump (debug_mem_addr_value): Pass mode.

2011-02-03  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/45122
        * tree-ssa-loop-niter.c (number_of_iterations_exit): Don't make
        unsafe assumptions when there's more than one loop exit.

2011-02-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/47272
        * doc/extend.texi (PowerPC AltiVec/VSX Built-in Functions):
        Document using vector double with the load/store builtins, and
        that the load/store builtins always use Altivec instructions.

        * config/rs6000/vector.md (vector_altivec_load_<mode>): New insns
        to use altivec memory instructions, even on VSX.
        (vector_altivec_store_<mode>): Ditto.

        * config/rs6000/rs6000-protos.h (rs6000_address_for_altivec): New
        function.

        * config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
        V2DF, V2DI support to load/store overloaded builtins.

        * config/rs6000/rs6000-builtin.def (ALTIVEC_BUILTIN_*): Add
        altivec load/store builtins for V2DF/V2DI types.

        * config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
        set avoid indexed addresses on power6 if -maltivec.
        (altivec_expand_ld_builtin): Add V2DF, V2DI support, use
        vector_altivec_load/vector_altivec_store builtins.
        (altivec_expand_st_builtin): Ditto.
        (altivec_expand_builtin): Add VSX memory builtins.
        (rs6000_init_builtins): Add V2DI types to internal types.
        (altivec_init_builtins): Add support for V2DF/V2DI altivec
        load/store builtins.
        (rs6000_address_for_altivec): Insure memory address is appropriate
        for Altivec.

        * config/rs6000/vsx.md (vsx_load_<mode>): New expanders for
        vec_vsx_ld and vec_vsx_st.
        (vsx_store_<mode>): Ditto.

        * config/rs6000/rs6000.h (RS6000_BTI_long_long): New type
        variables to hold long long types for VSX vector memory builtins.
        (RS6000_BTI_unsigned_long_long): Ditto.
        (long_long_integer_type_internal_node): Ditti.
        (long_long_unsigned_type_internal_node): Ditti.

        * config/rs6000/altivec.md (UNSPEC_LVX): New UNSPEC.
        (altivec_lvx_<mode>): Make altivec_lvx use a mode iterator.
        (altivec_stvx_<mode>): Make altivec_stvx use a mode iterator.

        * config/rs6000/altivec.h (vec_vsx_ld): Define VSX memory builtin
        short cuts.
        (vec_vsx_st): Ditto.

2011-02-02  Joseph Myers  <joseph@codesourcery.com>

        * config/pa/pa-hpux10.opt: New.
        * config/hpux11.opt (pthread): New Driver option.
        * config/pa/pa-hpux.opt (nolibdld, rdynamic): New Driver options.
        * config.gcc (hppa[12]*-*-hpux10*): Use pa/pa-hpux10.opt.

2011-02-02  Joseph Myers  <joseph@codesourcery.com>

        * config/ia64/vms.opt: New.
        * config.gcc (ia64-hp-*vms*): Use ia64/vms.opt.

2011-02-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/47580
        * config/rs6000/vsx.md (vsx_float<VSi><mode>2): Use
        gpc_reg_operand instead of vsx_register_operand to match rs6000.md
        generator functions.
        (vsx_floatuns<VSi><mode>2): Ditto.
        (vsx_fix_trunc<mode><VSi>2): Ditto.
        (vsx_fixuns_trunc<mode><VSi>2): Ditto.

2011-02-02  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/djgpp.opt (posix): New Driver option.

2011-02-02  Gerald Pfeifer  <gerald@pfeifer.com>

        * config.gcc (*-*-freebsd[12], *-*-freebsd[12].*, *-*-freebsd*aout*):
        Move to the unsupported targets list.

2011-02-02  Peter Bergner  <bergner@vnet.ibm.com>

        PR rtl-optimization/47525
        * df-scan.c: Update copyright years.
        (df_get_call_refs): Do not mark global registers as DF_REF_REG_USE
        and non-clobber DF_REF_REG_DEF for calls to const and pure functions.

2011-02-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/i386/sysv4.h (TARGET_VERSION): Remove.
        (SUBTARGET_RETURN_IN_MEMORY): Remove.
        (ASM_OUTPUT_ASCII): Remove.
        * config/i386/sol2.h (SUBTARGET_RETURN_IN_MEMORY): Remove #undef.

2011-02-02  Jeff Law  <law@redhat.com>

        PR middle-end/47543
        * reload.c (find_reloads_address): Handle reg+d address where both
        components are invalid by reloading the entire address.

2011-02-02  Sebastian Pop  <sebastian.pop@amd.com>
            Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40979
        PR bootstrap/47044
        * passes.c (init_optimization_passes): After LIM call copy_prop
        and DCE to clean up.
        * tree-ssa-loop.c (pass_graphite_transforms): Add TODO_dump_func.

2011-02-02  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/47576
        PR tree-optimization/47555
        * doc/invoke.texi (scev-max-expr-complexity): Documented.
        * params.def (PARAM_SCEV_MAX_EXPR_SIZE): Bump the value to 100.
        (PARAM_SCEV_MAX_EXPR_COMPLEXITY): Declared.
        * tree-scalar-evolution.c (follow_ssa_edge): Use
        PARAM_SCEV_MAX_EXPR_COMPLEXITY.

2011-02-02  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47566
        * builtins.c (builtin_save_expr): No SAVE_EXPR for SSA_NAMEs.

2011-02-02  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47106
        PR debug/47402
        * tree-inline.c (declare_return_variable): Remove unused caller
        variable.

        PR debug/47106
        PR debug/47402
        * tree-flow-inline.h (clear_is_used, is_used_p): New.
        * cfgexpand.c (account_used_vars_for_block): Use them.
        * tree-nrv.c (tree_nrv): Likewise.
        * tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
        (dump_scope_block): Likewise.
        (remove_unused_locals): Likewise.

        PR debug/47106
        PR debug/47402
        * tree-inline.c (declare_return_variable): Add result decl to
        local decls only once.
        * gimple-low.c (record_vars_into): Mark newly-created variables
        as referenced.

2011-02-02  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47498
        PR debug/47501
        PR debug/45136
        PR debug/45130
        * haifa-sched.c (get_ebb_head_tail): Move notes across boundary
        debug insns.
        (no_real_insns_p, schedule_block, set_priorities): Drop special
        treatment of boundary debug insns.
        * sched-deps.c (sd_init_insn, sd_finish_insn): Don't mark debug insns.
        * sched-ebb.c (schedule_ebbs): Adjust skipping of debug insns.
        * sched-int.h (DEBUG_INSN_SCHED_P): Remove.
        (BOUNDARY_DEBUG_INSN_P): Likewise.
        (SCHEDULE_DEBUG_INSN_P): Likewise.
        * sched-rgn.c (init_ready_list): Drop special treatment of
        boundary debug insns.
        * final.c (rest_of_clean_state): Clear notes' BB.

2011-02-01  Joseph Myers  <joseph@codesourcery.com>

        * config/openbsd.opt (assert=): New Driver option.

2011-02-01  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/nto.opt: New.
        * config.gcc (i[34567]86-*-nto-qnx*): Use i386/nto.opt.

2011-02-01  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/netware.opt: New.
        * config.gcc (i[3456x]86-*-netware*): Use i386/netware.opt.

2011-02-01  Joseph Myers  <joseph@codesourcery.com>

        * config/interix.opt (posix): New Driver option.

2011-02-01  DJ Delorie  <dj@redhat.com>

        * config/m32c/m32c.h (PTRDIFF_TYPE): Remove extra definition.

        * config/m32c/m32c.c (m32c_regno_reg_class): Return smallest reg
        class for A0/A1.

2011-02-01  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/47561
        * toplev.c (process_options): Print the Graphite flags.  Add
        flag_loop_flatten to the list of options requiring Graphite.

2011-02-01  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/cygming.opt (posix): New Driver option.

2011-02-01  Joseph Myers  <joseph@codesourcery.com>

        * config/arm/vxworks.opt: New.
        * config.gcc (arm-wrs-vxworks): Use arm/vxworks.opt.

2011-02-01  Joseph Myers  <joseph@codesourcery.com>

        * config/alpha/elf.opt: New.
        * config.gcc (alpha*-*-linux*, alpha*-*-gnu*, alpha*-*-freebsd*,
        alpha*-*-netbsd*, alpha*-*-openbsd*): Use alpha/elf.opt.

2011-02-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47559
        * tree-ssa-loop-im.c (can_sm_ref_p): Do not perform
        store-motion on references that can throw.

2011-02-01  Bernd Schmidt  <bernds@codesourcery.com>

        * tree-dump.c (dump_option_value_info): Add entry for TDF_CSELIB.
        * tree-pass.h (TDF_CSELIB): New macro.
        * cselib.c (new_cselib_val, expand_loc, cselib_expand_value_rtx_1,
        cselib_lookup): Check for it rather than for TDF_DETAILS.

2011-02-01  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/47547
        * lto-wrapper.c (run_gcc): Don't add -dumpdir if linker_output
        is HOST_BIT_BUCKET.

        * opts.c (finish_options): Don't add x_aux_base_name if it is
        HOST_BIT_BUCKET.

2011-02-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47555
        Revert
        2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>

        * params.def (PARAM_SCEV_MAX_EXPR_SIZE): Bump the value to 100.

2011-02-01  Sebastien Bourdeauducq  <sebastien@milkymist.org>

        PR gcc/46692
        * config/lm32/t-lm32: Add multilib for all CPU options.

2011-02-01  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47541
        * tree-ssa-structalias.c (push_fields_onto_fieldstack): Make
        sure to have a field at offset zero.

2011-01-31  Joseph Myers  <joseph@codesourcery.com>

        * config/arc/arc.opt (EB, EL): New Driver options.

2011-01-31  Joseph Myers  <joseph@codesourcery.com>

        * config/alpha/osf5.opt: New.
        * config.gcc (alpha*-dec-osf5.1*): Use alpha/osf5.opt.

2011-01-31  Joseph Myers  <joseph@codesourcery.com>

        * config/vms/vms.opt (map, mvms-return-codes): New Driver options.

2011-01-31  Sebastian Pop  <sebastian.pop@amd.com>

        * common.opt (ftree-loop-linear): Use Alias to make it an alias of
        -floop-interchange.
        * invoke.texi (-ftree-loop-linear): Make it clear that this flag
        is an alias of -floop-interchange and that it requires the
        Graphite infrastructure.
        * tree-ssa-loop.c (gate_graphite_transforms): Do not set
        flag_loop_interchange based on the value of flag_tree_loop_linear.

2011-01-31  Jakub Jelinek  <jakub@redhat.com>
            Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47538
        * tree-ssa-ccp.c (bit_value_binop_1): For uns computation use
        type instead of r1type, except for comparisons.  For right
        shifts and comparisons punt if there are mismatches in
        sizetype vs. non-sizetype types.

2011-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * doc/sourcebuild.texi (Effective-Target Keywords): Document
        avx_runtime.

2011-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_ld_eh_frame_hdr): Update minimal Sun ld
        version number.
        * configure: Regenerate.

2011-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_ld_static_option): Define.
        (gcc_cv_ld_dynamic_option): Define.
        (gcc_cv_ld_static_dynamic): Tru64 UNIX support -noso/-so_archive
        instead.
        (HAVE_LD_STATIC_DYNAMIC): Update message.
        (LD_STATIC_OPTION): Define.
        (LD_DYNAMIC_OPTION): Define.
        * configure: Regenerate.
        * config.in: Regenerate.
        * gcc.c (init_spec) [USE_LIBUNWIND_EXCEPTIONS &&
        HAVE_LD_STATIC_DYNAMIC]: Use them.

2011-01-31  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.c (rx_get_stack_layout): Only save call clobbered
        registers inside interrupt handlers if the handler is not a leaf
        function.

2011-01-31  Nick Clifton  <nickc@redhat.com>

        * config/mn10300/mn10300.c (mn10300_regno_in_class_p): Check for
        reg_renumber returning an INVALID_REGNUM.

2011-01-31  Alexandre Oliva  <aoliva@redhat.com>

        PR libgcj/44341
        * doc/install.texi: Document host options discarded when cross
        configuring target libraries.

2011-01-31  Alexandre Oliva  <aoliva@redhat.com>

        Reverted:
        2011-01-25  Alexandre Oliva  <aoliva@redhat.com>
        PR debug/45136
        PR debug/45130
        * haifa-sched.c (get_ebb_head_tail): Move notes across boundary
        debug insns.
        (no_real_insns_p, schedule_block, set_priorities): Drop special
        treatment of boundary debug insns.
        * sched-deps.c (sd_init_insn, sd_finish_insn): Don't mark debug insns.
        * sched-ebb.c (schedule_ebbs): Don't skip debug insns.
        * sched-int.h (DEBUG_INSN_SCHED_P): Remove.
        (BOUNDARY_DEBUG_INSN_P): Likewise.
        (SCHEDULE_DEBUG_INSN_P): Likewise.
        * sched-rgn.c (init_ready_list): Drop special treatment of
        boundary debug insns.
        * final.c (rest_of_clean-state): Clear notes' BB.

2011-01-31  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000.c (print_operand): Rearrange addends in
        toc relative expressions as we do in print_operand_address.

2011-01-30  Kazu Hirata  <kazu@codesourcery.com>

        * doc/extend.texi: Follow spelling conventions.
        * doc/invoke.texi: Fix a typo.

2011-01-30  Joseph Myers  <joseph@codesourcery.com>

        * config/hpux11.opt: New.
        * config.gcc (hppa*64*-*-hpux11*, hppa[12]*-*-hpux11*,
        ia64*-*-hpux*): Use hpux11.opt.

2011-01-30  Jonathan Yong  <jon_y@users.sourceforge.net>

        * config.gcc (i[34567]86-*-pe | i[34567]86-*-cygwin*): Add t-dfprules
        to tmake_file.

2011-01-30  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (hppa-hp-hpux10): Remove references to HP
        support sites.

2011-01-30  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/install.texi (Binaries): Remove outdated reference for
        Motorola 68HC11/68HC12 downloads.

2011-01-30  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/extend.texi (Thread-Local): Adjust reference to Ulrich
        Drepper's paper.

2011-01-29  Jonathan Wakely  <jwakely.gcc@gmail.com>

        PR bootstrap/47147
        * ginclude/stddef.h: Check for _X86_64_ANSI_H_ and _I386_ANSI_H_ as
        used by NetBSD.

2011-01-28  Ahmad Sharif  <asharif@google.com>

        * value-prof.c (check_counter): Corrected error message.

2011-01-29  Jie Zhang  <jie@codesourcery.com>

        * config/arm/arm.c (arm_legitimize_reload_address): New.
        * config/arm/arm.h (ARM_LEGITIMIZE_RELOAD_ADDRESS): Use
        arm_legitimize_reload_address.
        * config/arm/arm-protos.h (arm_legitimize_reload_address): Declare.

2011-01-28  Ian Lance Taylor  <iant@google.com>

        * godump.c (go_define): Ignore macros whose definitions include
        two adjacent operands.

2011-01-28  Jakub Jelinek  <jakub@redhat.com>

        PR target/42894
        * varasm.c (force_const_mem): Store copy of x in desc->constant
        instead of x itself.
        * expr.c (emit_move_insn): Add a copy of y_cst instead of y_cst
        itself into REG_EQUAL note.

2011-01-28  Joseph Myers  <joseph@codesourcery.com>

        * config/freebsd.opt (posix, rdynamic): New Driver options.

2011-01-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.ac (gcc_cv_ld_static_dynamic): IRIX 6 ld supports
        -Bstatic/-Bdynamic.
        * configure: Regenerate.

2011-01-27  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/sysv4.h (LIB_NETBSD_SPEC): Don't handle -profile.
        * config/rs6000/vxworks.h (CC1_SPEC): Don't handle -profile.

2011-01-27  Anatoly Sokolov  <aesok@post.ru>

        * config/s390/s390.h (PREFERRED_RELOAD_CLASS): Remove.
        * config/s390/s390-protos.h (s390_preferred_reload_class): Remove.
        * config/s390/s390.c (TARGET_PREFERRED_RELOAD_CLASS): Define.
        (s390_preferred_reload_class): Make static. Change return and
        'rclass' argument type to reg_class_t.

2011-01-27  Jan Hubicka  <jh@suse.cz>

        PR middle-end/46949
        * cgraphunit.c (process_common_attributes): Fix use of remove_attribute.
        (process_function_and_variable_attributes): Check defined weakrefs.

2011-01-27  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/47228
        * tree-sra.c (sra_modify_assign): Use build_ref_for_model instead of
        build_ref_for_offset.

2011-01-27  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu-elf.h (ASM_SPEC): Remove.

2011-01-26  Mikael Pettersson  <mikpe@it.uu.se>

        PR rtl-optimization/46856
        * postreload.c (reload_combine_recognize_const_pattern): Do not
        separate cc0 setter and user on cc0 targets.

2011-01-26  Nicola Pero  <nicola.pero@meta-innovation.com>

        PR c/43082
        * c-typeck.c (c_objc_common_truthvalue_conversion): If we are
        passed a VOID_TYPE expression, immediately emit an error and
        return error_mark_node.

2011-01-26  Jeff Law  <law@redhat.com>

        PR rtl-optimization/47464
        * df-problems.c (can_move_insn_across): Use may_trap_or_fault_p
        rather than may_trap_p as needed.

2011-01-26  DJ Delorie  <dj@redhat.com>

        PR rtl-optimization/46878
        * combine.c (insn_a_feeds_b): Check for the implicit cc0
        setter/user dependency as well.

2011-01-26  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/44469
        * cfgcleanup.c (try_optimize_cfg): Iterate in CFG layout mode too
        after removing trivially dead basic blocks.

2011-01-26  Joseph Myers  <joseph@codesourcery.com>

        * config/bfin/bfin.h (LINK_SPEC): Remove %{Qy:} %{!Qn:-Qy}.
        * config/frv/frv.h (LINK_SPEC): Likewise.
        * config/i386/netware.h (LINK_SPEC): Likewise.
        * config/m68k/linux.h (ASM_SPEC): Likewise.
        * config/rs6000/linux64.h (ASM_SPEC_COMMON): Likewise.
        * config/rs6000/sysv4.h (LINK_SPEC): Likewise.
        * config/rs6000/vxworks.h (ASM_SPEC): Likewise.
        * config/sparc/linux.h (ASM_SPEC): Likewise.
        * config/sparc/linux64.h (ASM_SPEC): Likewise.
        * config/sparc/sp-elf.h (ASM_SPEC): Likewise.

2011-01-26  Joseph Myers  <joseph@codesourcery.com>

        * config/bfin/bfin.h (ASM_SPEC): Remove %{Ym,*}.
        * config/frv/frv.h (ASM_SPEC): Likewise.
        * config/m68k/linux.h (ASM_SPEC): Likewise.
        * config/pa/pa-linux.h (ASM_SPEC): Likewise.
        * config/rs6000/linux64.h (ASM_SPEC): Likewise.
        * config/rs6000/vxworks.h (ASM_SPEC): Likewise.
        * config/sparc/linux.h (ASM_SPEC): Likewise.
        * config/sparc/linux64.h (ASM_SPEC): Likewise.
        * config/sparc/sp-elf.h (ASM_SPEC): Likewise.

2011-01-26  Joseph Myers  <joseph@codesourcery.com>

        * config/bfin/bfin.h (LINK_SPEC): Remove %{YP,*}.
        * config/frv/frv.h (LINK_SPEC): Likewise.
        * config/rs6000/sysv4.h (LINK_SPEC): Likewise.

2011-01-26  Joseph Myers  <joseph@codesourcery.com>

        * config/bfin/bfin.h (ASM_SPEC): Remove %{Yd,*}.
        * config/frv/frv.h (ASM_SPEC): Likewise.
        * config/i386/sol2-10.h (ASM_SPEC): Likewise.
        * config/m68k/linux.h (ASM_SPEC): Likewise.
        * config/pa/pa-linux.h (ASM_SPEC): Likewise.
        * config/rs6000/linux64.h (ASM_SPEC32): Likewise.
        * config/rs6000/vxworks.h (ASM_SPEC): Likewise.
        * config/sol2.h (ASM_SPEC): Remove comment about -Yd,.
        * config/sparc/linux.h (ASM_SPEC): Likewise.
        * config/sparc/linux64.h (ASM_SPEC): Likewise.
        * config/sparc/sp-elf.h (ASM_SPEC): Likewise.
        * config/sparc/sysv4.h (ASM_SPEC): Remove %{Yd,*}.

2011-01-26  Steve Ellcey  <sje@cup.hp.com>

        PR target/46997
        * config/ia64/vect.md (mulv2si3): Enable and fix for TARGET_BIG_ENDIAN.
        (*mux2): Ditto.
        (vec_extract_evenodd_help): Ditto.
        (vec_extract_evenv4hi): Ditto.
        (vec_extract_oddv4hi): Ditto.
        (vec_interleave_lowv2si): Ditto.
        (vec_interleave_highv2si): Ditto.
        (vec_extract_evenv2si): Ditto.
        (vec_extract_oddv2si: Ditto.
        (vec_pack_trunc_v2si): Ditto.

2011-01-22  Jan Hubicka  <jh@suse.cz>

        PR target/47237
        * cgraph.h (cgraph_local_info): New field can_change_signature.
        * ipa-cp.c (ipcp_update_callgraph): Only compute args_to_skip if callee
        signature can change.
        (ipcp_estimate_growth): Call sequence simplify only if calle signature
        can change.
        (ipcp_insert_stage): Only compute args_to_skip if signature can change.
        (cgraph_function_versioning): We can not change signature of functions
        that don't allow that.
        * lto-cgraph.c (lto_output_node): Stream local.can_change_signature.
        (lto_input_node): Likewise.
        * ipa-inline.c (compute_inline_parameters): Compute
        local.can_change_signature.
        * ipa-split.c (visit_bb): Never split away APPLY_ARGS.
        * tree-sra.c (ipa_sra_preliminary_function_checks): Give up on
        functions that can not change signature.
        * i386.c (ix86_function_regparm, ix86_function_sseregparm,
        init_cumulative_args): Do not use local calling conventions
        for functions that can not change signature.

2011-01-22  Jan Hubicka  <jh@suse.cz>

        * doc/invoke.texi (hot-bb-frequency-fraction): Commit forgotten hunk.

2011-01-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47190
        * cgraphunit.c (process_common_attributes): New function.
        (process_function_and_variable_attributes): Use it.

2011-01-26  Richard Guenther  <rguenther@suse.de>

        PR lto/47423
        * cgraphbuild.c (record_eh_tables): Record reference to personality
        function.

2011-01-26  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/45454
        * sel-sched.c (moveup_expr): Don't let debug insns prevent
        non-debug insns from moving up.

2011-01-26  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR target/40125
        * config.gcc (i[34567]86-*-pe | i[34567]86-*-cygwin*): Select suitable
        t-dlldir{,-x} fragment for build and add it to tmake_file.
        (i[34567]86-*-mingw* | x86_64-*-mingw*): Likewise.
        * Makefile.in (libgcc.mvars): Also export SHLIB_DLLDIR to libgcc.
        * config/i386/t-dlldir: New file.
        (SHLIB_DLLDIR): Define.
        * config/i386/t-dlldir-x: New file.
        (SHLIB_DLLDIR): Define.
        * config/i386/t-cygming: Error out if SHLIB_DLLDIR is not set.
        (SHLIB_INSTALL): Use it.

2011-01-26  Chung-Lin Tang  <cltang@codesourcery.com>

        PR target/47246
        * config/arm/arm.c (thumb2_legitimate_index_p): Change the
        lower bound of the allowed Thumb-2 coprocessor load/store
        index range to -256. Add explaining comment.

2011-01-25  Ian Lance Taylor  <iant@google.com>

        * godump.c (go_define): Improve lexing of macro expansion to only
        accept expressions which match Go spec.

2011-01-26  Dave Korn  <dave.korn.cygwin@gmail.com>

        PR c++/43601
        * tree.c (handle_dll_attribute): Handle it.
        * doc/extend.texi (@item dllexport): Mention it.
        * doc/invoke.texi (@item -fno-keep-inline-dllexport): Document it.

2011-01-25  Ian Lance Taylor  <iant@google.com>

        PR tree-optimization/26854
        * c-decl.c (struct c_scope): Add field has_jump_unsafe_decl.
        (decl_jump_unsafe): Move higher in file, with no other change.
        (bind): Set has_jump_unsafe_decl if appropriate.
        (update_label_decls): Test has_jump_unsafe_decl to avoid loop.
        (check_earlier_gotos): Likewise.
        (c_check_switch_jump_warnings): Likewise.

2011-01-25  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/invoke.texi (Warning Options): Add missing hyphen.
        (-fprofile-dir): Minor grammatical fixes.
        (-fbranch-probabilities): Likewise.

2011-01-25  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/45136
        PR debug/45130
        * haifa-sched.c (get_ebb_head_tail): Move notes across boundary
        debug insns.
        (no_real_insns_p, schedule_block, set_priorities): Drop special
        treatment of boundary debug insns.
        * sched-deps.c (sd_init_insn, sd_finish_insn): Don't mark debug insns.
        * sched-ebb.c (schedule_ebbs): Don't skip debug insns.
        * sched-int.h (DEBUG_INSN_SCHED_P): Remove.
        (BOUNDARY_DEBUG_INSN_P): Likewise.
        (SCHEDULE_DEBUG_INSN_P): Likewise.
        * sched-rgn.c (init_ready_list): Drop special treatment of
        boundary debug insns.
        * final.c (rest_of_clean-state): Clear notes' BB.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * Makefile.in (LAMBDA_H): Removed.
        (TREE_DATA_REF_H): Remove dependence on LAMBDA_H.
        (OBJS-common): Remove dependence on lambda-code.o, lambda-mat.o,
        lambda-trans.o, and tree-loop-linear.o.
        (lto-symtab.o): Remove dependence on LAMBDA_H.
        (tree-loop-linear.o): Remove rule.
        (lambda-mat.o): Same.
        (lambda-trans.o): Same.
        (lambda-code.o): Same.
        (tree-vect-loop.o): Add missing dependence on TREE_DATA_REF_H.
        (tree-vect-slp.o): Same.
        * hwint.h (gcd): Moved here.
        (least_common_multiple): Same.
        * lambda-code.c: Removed.
        * lambda-mat.c: Removed.
        * lambda-trans.c: Removed.
        * lambda.h: Removed.
        * tree-loop-linear.c: Removed.
        * lto-symtab.c: Do not include lambda.h.
        * omega.c (gcd): Removed.
        * passes.c (init_optimization_passes): Remove pass_linear_transform.
        * tree-data-ref.c (print_lambda_vector): Moved here.
        (lambda_vector_copy): Same.
        (lambda_matrix_copy): Same.
        (lambda_matrix_id): Same.
        (lambda_vector_first_nz): Same.
        (lambda_matrix_row_add): Same.
        (lambda_matrix_row_exchange): Same.
        (lambda_vector_mult_const): Same.
        (lambda_vector_negate): Same.
        (lambda_matrix_row_negate): Same.
        (lambda_vector_equal): Same.
        (lambda_matrix_right_hermite): Same.
        * tree-data-ref.h: Do not include lambda.h.
        (lambda_vector): Moved here.
        (lambda_matrix): Same.
        (dependence_level): Same.
        (lambda_transform_legal_p): Removed declaration.
        (lambda_collect_parameters): Same.
        (lambda_compute_access_matrices): Same.
        (lambda_vector_gcd): Same.
        (lambda_vector_new): Same.
        (lambda_vector_clear): Same.
        (lambda_vector_lexico_pos): Same.
        (lambda_vector_zerop): Same.
        (lambda_matrix_new): Same.
        * tree-flow.h (least_common_multiple): Removed declaration.
        * tree-parloops.c (lambda_trans_matrix): Moved here.
        (LTM_MATRIX): Same.
        (LTM_ROWSIZE): Same.
        (LTM_COLSIZE): Same.
        (LTM_DENOMINATOR): Same.
        (lambda_trans_matrix_new): Same.
        (lambda_matrix_vector_mult): Same.
        (lambda_transform_legal_p): Same.
        * tree-pass.h (pass_linear_transform): Removed declaration.
        * tree-ssa-loop.c (tree_linear_transform): Removed.
        (gate_tree_linear_transform): Removed.
        (pass_linear_transform): Removed.
        (gate_graphite_transforms): Make flag_tree_loop_linear an alias of
        flag_loop_interchange.

2011-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/47265
        PR tree-optimization/47443
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Return false
        if name still has some uses.

2011-01-25  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/47382
        * gimple-fold.c (gimple_fold_obj_type_ref_call): Removed.
        (gimple_fold_call): Do not call gimple_fold_obj_type_ref_call.

2011-01-25  Joel Sherrill  <joel.sherrill@oarcorp.com>

        * config/m32r/m32r.c: Define TARGET_EXCEPT_UNWIND_INFO to
        sjlj_except_unwind_info.

2011-01-25  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47426
        * tree-ssa-structalias.c (ipa_pta_execute): Make externally
        visible functions results escape.

2011-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR target/45701
        * config/arm/arm.c (any_sibcall_uses_r3): New function.
        (arm_get_frame_offsets): Use it.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/47271
        * tree-if-conv.c (bb_postdominates_preds): New.
        (if_convertible_bb_p): Call bb_postdominates_preds.
        (if_convertible_loop_p_1): Compute CDI_POST_DOMINATORS.
        (predicate_scalar_phi): Call bb_postdominates_preds.

2011-01-25  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.h (LIBCALL_VALUE): Do not promote complex types.
        * config/rx/rx.c (rx_function_value): Likewise.
        (rx_promote_function_mode): Likewise.
        (gen_safe_add): Place an outsized immediate value inside an UNSPEC
        in order to make it legitimate.
        * config/rx/rx.md (adddi3_internal): If the second operand is a MEM
        make sure that the first operand is the same as the result register.
        (addsi3_unspec): Delete.
        (subdi3): Do not accept immediate operands.
        (subdi3_internal): Likewise.

2011-01-25  Jeff Law  <law@redhat.com>

        PR rtl-optimization/37273
        * ira-costs.c (scan_one_insn): Detect constants living in memory and
        handle them like argument loads from stack slots.  Do not double
        count memory for memory constants and argument loads from stack slots.

2011-01-25  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/47427
        PR tree-optimization/47428
        * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Don't
        coalesce if the new root var would be TREE_READONLY.

2011-01-25  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47414
        * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Use the
        correct type for TBAA.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (dr_indices_valid_in_loop): New.
        (close_phi_written_to_memory): Call for_each_index with
        dr_indices_valid_in_loop.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (new_pbb_from_pbb): Only copy PBB_DOMAIN
        when it is initialized.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (stmt_has_simple_data_refs_p): Update
        call to graphite_find_data_references_in_stmt.
        * graphite-sese-to-poly.c (outermost_loop_in_sese_1): New.
        (try_generate_gimple_bb): Call outermost_loop_in_sese_1.  Update
        call to graphite_find_data_references_in_stmt.
        (analyze_drs_in_stmts): Same.
        * tree-data-ref.c (dr_analyze_indices): Pass in parameter the loop
        in which the scalar analysis of indices is performed.
        (create_data_ref): Same.  Update call to dr_analyze_indices.
        (find_data_references_in_stmt): Update call to create_data_ref.
        (graphite_find_data_references_in_stmt): Same.
        * tree-data-ref.h (graphite_find_data_references_in_stmt): Update
        declaration.
        (create_data_ref): Same.
        * tree-ssa-loop-prefetch.c (determine_loop_nest_reuse): Update
        call to create_data_ref.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_poly_scop): Move
        rewrite_commutative_reductions_out_of_ssa before find_scop_parameters.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (close_phi_written_to_memory): Also allow
        VAR_DECL, PARM_DECL, and RESULT_DECL.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (reduction_dr_1): Allow several reductions
        in a reduction PBB.
        * graphite-sese-to-poly.c (split_reduction_stmt): Do not split PBBs
        that have already been marked as PBB_IS_REDUCTION.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (same_close_phi_node): New.
        (remove_duplicate_close_phi): New.
        (make_close_phi_nodes_unique): New.
        (canonicalize_loop_closed_ssa): Call make_close_phi_nodes_unique.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (new_poly_ddr): Call same_pdr_p.
        * graphite-poly.h (same_pdr_p): Do not expect that the PDR_TYPE
        of both data references to be the same.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (build_lexicographical_constraint): Remove
        the gdim parameter.
        (build_lexicographical_constraint): Adjust call to
        ppl_powerset_is_empty.
        (dependence_polyhedron): Same.
        (graphite_legal_transform_dr): Same.
        (graphite_carried_dependence_level_k): Same.
        * graphite-ppl.c (ppl_powerset_is_empty): Remove the nb_params
        parameter.
        * graphite-ppl.h (ppl_powerset_is_empty): Adjust declaration.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c
        (translate_scalar_reduction_to_array_for_stmt): Call unshare_expr.
        (close_phi_written_to_memory): New.
        (translate_scalar_reduction_to_array): Call close_phi_written_to_memory
        and unshare_expr.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/install.texi: Update the expected version number of PPL to 0.11.
        * graphite-ppl.c (ppl_powerset_is_empty): Remove now dead code under
        #if PPL_VERSION_MINOR < 11.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c: Include graphite-cloog-util.h.
        (new_poly_ddr): Inlined into dependence_polyhedron.
        (free_poly_ddr): Moved close by new_poly_ddr.
        (dependence_polyhedron_1): Renamed dependence_polyhedron.
        Early return NULL when ppl_powerset_is_empty returns true.
        (dependence_polyhedron): Renamed new_poly_ddr.  Call only once
        poly_drs_may_alias_p.  Avoid one call to ppl_powerset_is_empty.
        (graphite_legal_transform_dr): Call new_poly_ddr.
        (graphite_carried_dependence_level_k): Same.
        (dot_original_deps_stmt_1): Renamed dot_deps_stmt_2.  Use new_poly_ddr.
        (dot_transformed_deps_stmt_1): Removed.
        (dot_deps_stmt_1): Call dot_deps_stmt_2.
        (dot_original_deps): Renamed dot_deps_2.  Call new_poly_ddr.
        (dot_deps_1): Call dot_deps_2.
        * Makefile.in (graphite-dependences.o): Add missing dependence on
        graphite-cloog-util.h.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (new_poly_dr): Call ppl_powerset_is_empty.
        (build_lexicographical_constraint): Same.
        (dependence_polyhedron_1): Same.
        (graphite_legal_transform_dr): Same.
        (graphite_carried_dependence_level_k): Same.
        * graphite-ppl.c (ppl_powerset_is_empty): New.
        * graphite-ppl.h (ppl_powerset_is_empty): Declared.
        * tree-data-ref.c (dump_data_reference): Print the basic block index.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (build_pairwise_scheduling): Correctly compute
        the "a followed by b" relation and document it.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (build_lexicographical_constraint): Stop the
        iteration when the bag of constraints is empty.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (pbb_remove_duplicate_pdrs): Make it work.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (lst_interchange_profitable_p): Takes a loop
        nest and two loop depths as parameters.
        (lst_try_interchange_loops): Call lst_interchange_profitable_p after
        lst_perfect_nestify.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (print_pddr): Call
        ppl_io_fprint_Pointset_Powerset_C_Polyhedron.

2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (debug_gmp_value): New.
        * graphite-ppl.h (debug_gmp_value): Declared.

2011-01-25  Tobias Grosser  <grosser@fim.uni-passau.de>

        * doc/install.texi: Document availability of cloog-0.16.

2011-01-25  Vladimir Kargov  <kargov@gmail.com>

        * graphite-scop-detection.c (canonicalize_loop_closed_ssa): Free
        invalid postdominance info.

2011-01-24  Jan Hubicka  <jh@suse.cz>

        PR c/21659
        * doc/extend.texi (weak pragma): Drop claim that it must
        appear before definition.
        * varasm.c (merge_weak, declare_weak): Only sanity check
        that DECL is not output at a time it is declared weak.

2011-01-24  Kenneth Zadeck  <zadeck@naturalbridge.com>

        * machmode.def: Fixed comments.

2011-01-24  Kai Tietz  <kai.tietz@onevision.com>

        * emit-rtl.c (reg_attrs_htab_hash): Replace long by intptr_t.

2011-01-24  Paul Koning  <ni1d@arrl.net>

        * builtins.c (c_readstr): Fix byte order if BYTES_BIG_ENDIAN !=
        WORDS_BIG_ENDIAN.

2011-01-24  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/46519
        * config/i386/i386.c: Include sbitmap.h and fibheap.h.
        (block_info): Add scanned and prev.
        (move_or_delete_vzeroupper_2): Return if the basic block
        has been scanned and the upper 128bit state is unchanged
        from the last scan.
        (move_or_delete_vzeroupper_1): Return true if the exit
        state is changed.
        (move_or_delete_vzeroupper): Visit basic blocks using the
        work-list based algorithm based on vt_find_locations in
        var-tracking.c.

        * config/i386/t-i386: Also depend on sbitmap.h and $(FIBHEAP_H).

2011-01-24  Nick Clifton  <nickc@redhat.com>

        * config/v850/v850.opt (mv850es): New option - alias for -mv850e1.
        * config/v850/v850.h (ASM_SPEC): If -mv850es is specified pass
        -mv850e1 to the assembler.  If -mv850e1 or -mv850es is specified
        then define __v850e1__.
        * doc/invoke.texi: Document -mv850es.

2011-01-24  Richard Henderson  <rth@redhat.com>

        * config/rx/predicates.md (rx_fp_comparison_operator): Don't accept
        compound unordered comparisons.
        * config/rx/rx.c (rx_split_fp_compare): Remove.
        * config/rx/rx-protos.h: Update.
        * config/rx/rx.md (gcc_conds, rx_conds): Remove.
        (cbranchsf4): Don't call rx_split_fp_compare.
        (*cbranchsf4): Use rx_split_cbranch.
        (*cmpsf): Don't accept "i" constraint.
        (*conditional_branch): Only valid after reload.
        (cstoresf4): Merge expander with insn.  Don't call rx_split_fp_compare.

2011-01-24  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/47385
        * config/rs6000/altivec.md (vector constant splitters): Add
        support for creating vector single precision constants if -mvsx is
        used and we would create the constant using Altivec primitives.

2011-01-23  Bernd Schmidt  <bernds@codesourcery.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        PR rtl-optimization/47166
        * reload1.c (emit_reload_insns): Disable the spill_reg_store
        mechanism for PRE_MODIFY and POST_MODIFY.
        (inc_for_reload): For PRE_MODIFY, return the insn that sets the
        reloadreg.

2011-01-23  Andreas Schwab  <schwab@linux-m68k.org>

        * compare-elim.c (maybe_select_cc_mode): Add ATTRIBUTE_UNUSED markers.

2011-01-22  Jan Hubicka  <jh@suse.cz>

        PR lto/47333
        * lto-cgraph.c (reachable_from_this_partition_p): Fix pasto.

2011-01-22  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/43884
        PR lto/44334
        * predict.c (maybe_hot_frequency_p): Use entry block frequency as base.
        * doc/invoke.texi (hot-bb-frequency-fraction): Update docs.

2011-01-22  Anatoly Sokolov  <aesok@post.ru>

        * config/s390/s390.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove.
        * config/s390/s390.c (s390_register_move_cost,
        s390_memory_move_cost): New.
        (TARGET_REGISTER_MOVE_COST, TARGET_MEMORY_MOVE_COST): Define.

2011-01-22  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        PR middle-end/47401
        * except.c (sjlj_assign_call_site_values): Move setting the
        crtl->uses_eh_lsda flag to ...
        (sjlj_mark_call_sites): ... here.
        (sjlj_emit_function_enter): Support NULL dispatch label.
        (sjlj_build_landing_pads): In a function with no landing pads
        that still has must-not-throw regions, generate code to register
        a personality function with empty LSDA.

2011-01-21  Richard Henderson  <rth@redhat.com>

        * config/rx/rx.c (TARGET_FLAGS_REGNUM): New.

        * config/mn10300/mn10300.c (TARGET_FLAGS_REGNUM): New.

        * compare-elim.c: New file.
        * Makefile.in (OBJS-common): Add it.
        (compare-elim.o): New.
        * common.opt (fcompare-elim): New.
        * opts.c (default_options_table): Add OPT_fcompare_elim.
        * tree-pass.h (pass_compare_elim_after_reload): New.
        * passes.c (init_optimization_passes): Add it.
        * recog.h: Protect against re-inclusion.
        * target.def (TARGET_FLAGS_REGNUM): New POD hook.
        * doc/invoke.texi (-fcompare-elim): Document it.
        * doc/tm.texi.in (TARGET_FLAGS_REGNUM): Document it.
        * doc/tm.texi: Rebuild.

2011-01-22  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (cstoresf4): Pass comparison operator to
        rx_split_fp_compare.

2011-01-22  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (UNSPEC_CONST): New.
        (deallocate_and_return): Wrap the amount popped off the stack in
        an UNSPEC_CONST in order to stop it being rejected by
        -mmax-constant-size.
        (pop_and_return): Add a "(return)" rtx.
        (call): Drop the immediate operand.
        (call_internal): Likewise.
        (call_value): Likewise.
        (call_value_internal): Likewise.
        (sibcall_internal): Likewise.
        (sibcall_value_internal): Likewise.
        (sibcall): Likewise.  Generate an explicit call using
        sibcall_internal.
        (sibcall_value): Likewise.
        (mov<>): FAIL if a constant operand is not legitimate.
        (addsi3_unpsec): New pattern.

        * config/rx/rx.c (rx_print_operand_address): Handle UNSPEC CONSTs.
        (ok_for_max_constant): New function.
        (gen_safe_add): New function.
        (rx_expand_prologue): Use gen_safe_add.
        (rx_expand_epilogue): Likewise.
        (rx_is_legitimate_constant): Use ok_for_max_constant.  Handle
        UNSPEC CONSTs.

2011-01-21  Jeff Law  <law@redhat.com>

        PR tree-optimization/47053
        * tree-ssa-dse.c (need_eh_cleanup): New bitmap.
        (dse_optimize_stmt): Set the appropriate bit in NEED_EH_CLEANUP when
        statements are deleted.
        (tree_ssa_dse): Allocate & free NEED_EH_CLEANUP.  If NEED_EH_CLEANUP
        is nonempty, then purge dead edges and cleanup the CFG.

2011-01-21  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47402
        Temporarily revert:
        2011-01-21  Alexandre Oliva  <aoliva@redhat.com>
        PR debug/47106
        * tree-dfa.c (create_var_ann): Mark variable as used.

2011-01-21  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/45566
        * except.c (convert_to_eh_region_ranges): Emit queued no-region
        notes from other section in hot/cold partitioning even if
        last_action is -3.  Increment call_site_base.

        PR rtl-optimization/47366
        * fwprop.c (forward_propagate_into): Return bool.  If
        any changes are made, -fnon-call-exceptions is used and
        REG_EH_REGION note is present, call purge_dead_edges
        and return true if it purged anything.
        (fwprop_addr): Adjust callers, call cleanup_cfg (0) if
        any EH edges were purged.

2011-01-21  Jeff Law  <law@redhat.com>

        PR rtl-optimization/41619
        * caller-save.c (setup_save_areas): Break out code to determine
        which hard regs are live across calls by examining the reload chains
        so that it is always used.
        Eliminate code which checked REG_N_CALLS_CROSSED.

2011-01-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/47355
        * tree-eh.c (cleanup_empty_eh_merge_phis): Give up if
        NOP has non-debug uses beyond PHIs in new_bb.

2011-01-21  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47106
        * cfgexpand.c (account_used_vars_for_block): Only account vars
        that are annotated as used.
        (estimated_stack_frame_size): Don't set TREE_USED.
        * tree-dfa.c (create_var_ann): Mark variable as used.

2011-01-21  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47395
        * tree.def (WIDEN_MULT_MINUS_EXPR): Fix printed name.

2011-01-21  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47365
        * tree-ssa-sccvn.h (vn_lookup_kind): Declare.
        (vn_reference_lookup_pieces): Adjust.
        (vn_reference_lookup): Likewise.
        * tree-ssa-sccvn.c (vn_walk_kind): New static global.
        (vn_reference_lookup_3): Only look through kills if in
        VN_WALKREWRITE mode.
        (vn_reference_lookup_pieces): Adjust.
        (vn_reference_lookup): Likewise.
        (visit_reference_op_load): Likewise.
        (visit_reference_op_store): Likewise.
        * tree-ssa-pre.c (phi_translate_1): Use VN_WALK mode.
        (compute_avail): Likewise.
        (eliminate): Likewise.

2011-01-21  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa-live.c (remove_unused_scope_block_p): Don't remove
        DECL_IGNORED_P non-reg vars if they are used.

        PR tree-optimization/47391
        * varpool.c (const_value_known_p): Return false if
        decl is volatile.

2011-01-21  Kai Tietz  <kai.tietz@onevision.com>

        PR bootstrap/47215
        * config/i386/i386.c (ix86_local_alignment): Handle
        case for va_list_type_node is nil.
        (ix86_canonical_va_list_type): Likewise.

2011-01-21  Alan Modra  <amodra@gmail.com>

        * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Add
        builtin_define __CMODEL_MEDIUM__ and __CMODEL_LARGE__.

2011-01-20  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/arm/arm.md (define_attr type): Rename f_load
        and f_store to f_fpa_load and f_fpa_store. Update.
        (write_conflict): Deal with rename fallout.
        (*push_fp_multi): Likewise.
        * config/arm/fpa.md (f_load): Use f_fpa_load.
        (f_store): Use f_fpa_store.
        (*movsf_fpa): Likewise.
        (*movdf_fpa): Likewise.
        (*movxf_fpa): Likewise.
        (*thumb2_movsf_fpa): Likewise.
        (*thumb2_movdf_fpa): Likewise.
        (*thumb2_movxf_fpa): Likewise.
        * config/arm/vfp.md (*thumb2_movdf_vfp): Fix attribute to
        f_loadd and f_stored.
        (*thumb2_movdi_vfp): Likewise.
        (*thumb2_movsf_vfp): Fix attribute to f_loads.
        (*thumb2_movsi_vfp): Likewise.
        * config/arm/cortex-m4-fpu.md (cortex_m4_f_load):
        Use f_loads instead of f_load.
        * config/arm/cortex-a5.md (cortex_a5_f_loads): Remove f_load.

2011-01-20  Anatoly Sokolov  <aesok@post.ru>

        * config/xtensa/xtensa.h (GO_IF_MODE_DEPENDENT_ADDRESS): Remove.
        * config/xtensa/xtensa-protos.h (constantpool_address_p): Remove.
        * config/xtensa/xtensa.c (TARGET_MODE_DEPENDENT_ADDRESS_P): Define.
        (xtensa_mode_dependent_address_p): New function.
        (constantpool_address_p): Make static. Change return type to bool.
        Change argument type to const_rtx. Use CONST_INT_P predicate.

2011-01-20  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/46583
        * tree-ssa-live.c (remove_unused_scope_block_p): Keep type decls.

2011-01-20  Jakub Jelinek  <jakub@redhat.com>

        PR debug/47283
        * cfgexpand.c (expand_debug_expr): Instead of generating
        (mem (debug_implicit_ptr)) for MEM_REFs use COMPONENT_REF
        etc. handling.

2011-01-20  Richard Guenther  <rguenther@suse.de>

        PR middle-end/47370
        * tree-inline.c (remap_gimple_op_r): Recurse manually for
        the pointer operand of MEM_REFs.

2011-01-20  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/46130
        * ipa-split.c (consider_split): If return_bb contains non-virtual
        PHIs other than for retval or if split_function would not adjust it,
        refuse to split.

2011-01-20  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/47167
        * tree-ssa-copyrename.c (copy_rename_partition_coalesce):
        Revert previous change, only avoid enumeral type changes.

2011-01-19  Mike Stump  <mikestump@comcast.net>

        * doc/tm.texi.in (BRANCH_COST): Englishify.
        * doc/tm.texi (BRANCH_COST): Likewise.

2011-01-19  Dodji Seketeli  <dodji@redhat.com>

        PR c++/47291
        * dwarf2out.c (generic_type_p, schedule_generic_params_dies_gen)
        (gen_scheduled_generic_parms_dies): New functions.
        (gen_struct_or_union_type_die): Schedule template parameters DIEs
        generation for the end of CU compilation.
        (dwarf2out_finish): Generate template parameters DIEs here.

2011-01-19  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/46240
        * tree-into-ssa.c (maybe_register_def): Do not attempt to add
        debug bind stmt on merge edges.

2011-01-19  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/47079
        PR debug/46724
        * function.c (instantiate_expr): Instantiate incoming rtl of
        implicit arguments, and recurse on VALUE_EXPRs.
        (instantiate_decls): Instantiate rtl and VALUE_EXPR of result.
        * var-tracking.c (adjust_mems): Reject virtual_incoming_args_rtx.

2011-01-19  Alexandre Oliva  <aoliva@redhat.com>

        * c-parser.c (c_parser_for_statement): Initialize
        collection_expression.

2011-01-19  Joseph Myers  <joseph@codesourcery.com>

        * config/spu/spu-elf.h (ASM_SPEC): Remove %{w:-W}.

2011-01-19  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/sysv4.h (LINK_PATH_SPEC): Remove.
        (LINK_SHLIB_SPEC): Don't use %(link_path).
        (SUBTARGET_EXTRA_SPECS): Remove link_path.

2011-01-19  Joseph Myers  <joseph@codesourcery.com>

        * config/rs6000/sysv4.h (SHARED_LIB_SUPPORT): Remove conditional.
        (NO_SHARED_LIB_SUPPORT): Remove.
        (LINK_SHLIB_SPEC): Remove one conditional definition.

2011-01-19  Joseph Myers  <joseph@codesourcery.com>

        * config/mips/linux64.h (LINK_SPEC): Remove %{non_shared}
        %{call_shared}.
        * config/mips/mips.h (LINK_SPEC): Remove %{non_shared}.
        * config/mips/netbsd.h (LINK_SPEC): Remove %{call_shared}.
        * config/mips/openbsd.h (LINK_SPEC): Remove %{non_shared}
        %{call_shared} and conditionals on these options not being passed.
        * config/mips/sde.h (LINK_SPEC): Remove %{non_shared}
        %{call_shared}.

2011-01-19  Jakub Jelinek  <jakub@redhat.com>

        * ipa-split.c (find_return_bb): Use single_pred_p/single_pred_edge,
        simplify.

        * ipa-split.c: Spelling fixes.

2011-01-19  Richard Henderson  <rth@redhat.com>

        * config/mn10300/mn10300.md (mulsi3): Use reg_or_am33_const_operand.
        (*mulsi3): Likewise.

        * longlong.h [__mn10300__] (count_leading_zeros): New.
        [__mn10300__] (umul_ppmm, smul_ppmm): New.
        [__mn10300__] (add_ssaaaa, subddmmss): New.
        [__mn10300__] (udiv_qrnnd, sdiv_qrnnd): New.
        [__mn10300__] (UMUL_TIME, UDIV_TIME): New.

2011-01-19  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.h (MOVE_RATIO): Return 4 in the !speed case.

2011-01-19  Richard Henderson  <rth@redhat.com>

        * config/mn10300/mn10300.md (addsi3_flags): New.
        (addc_internal, adddi3, adddi3_internal, *adddi3_degenerate): New.
        (subsi3_flags, subc_internal, subdi3): New.
        (subdi3_internal, *subdi3_degenerate): New.
        * config/mn10300/predicates.md (reg_or_am33_const_operand): New.

        * config/mn10300/mn10300.c (mn10300_can_use_retf_insn): New.
        (mn10300_can_use_rets_insn): Rename from mn10300_can_use_return_insn.
        (mn10300_expand_epilogue): Use it.  Compute REG_SAVE_BYTES once.
        * config/mn10300/mn10300-protos.h: Update.
        * config/mn10300/mn10300.md (return): Use mn10300_can_use_retf_insn.
        (return_ret): Likewise.  Rename from return_internal_regs.
        (return_internal): Remove.

        * config/mn10300/mn10300.c (mn10300_unspec_int_label_counter): Remove.
        (mn10300_asm_output_addr_const_extra): Don't handle UNSPEC_INT_LABEL.
        (mn10300_legitimate_constant_p): Likewise.
        (mn10300_can_use_return_insn): Use mn10300_initial_offset.
        (mn10300_frame_size): New.
        (mn10300_expand_prologue): Use it.
        (mn10300_expand_epilogue): Likewise.
        (mn10300_initial_offset): Likewise.
        * config/mn10300/mn10300-protos.h: Update.
        * config/mn10300/mn10300.h (mn10300_unspec_int_label_counter): Remove.
        * config/mn10300/mn10300.md (UNSPEC_INT_LABEL): Remove.
        (prologue, epilogue, return_internal): Tidy output code.
        (mn10300_store_multiple_operation, return): Likewise.
        (int_label, pop_pic_reg, GOTaddr2picreg): Remove.
        (am33_loadPC, mn10300_loadPC, call_next_insn): Remove.
        (add_GOT_to_pic_reg, add_GOT_to_any_reg): Remove.
        (load_pic, am33_load_pic): New.
        (mn10300_load_pic0, mn10300_load_pic1): New.

        * config/mn10300/mn10300-modes.def (CCZN, CCZNC): New modes.
        * config/mn10300/mn10300.c (CC_FLAG_Z): New.
        (CC_FLAG_N, CC_FLAG_C, CC_FLAG_V): New.
        (cc_flags_for_mode, cc_flags_for_code): New.
        (mn10300_print_operand) ['B']: Use nc/ns for GE/LT when the
        overflow flag is not valid.  Validate that the flags we need
        for the comparison are valid.
        (mn10300_output_cmp): Remove.
        (mn10300_output_add): New.
        (mn10300_select_cc_mode): Use cc_flags_for_code.
        (mn10300_split_cbranch): New.
        (mn10300_match_ccmode): New.
        (mn10300_split_and_operand_count): New.
        * config/mn10300/mn10300.h (SELECT_CC_MODE): Pass all of the arguments
        to the function.
        * config/mn10300/mn10300.md (*am33_addsi3, *mn10300_addsi3): Merge...
        (addsi3): ... here.  Use mn10300_output_add.
        (*addsi3_flags): New.
        (*am33_subsi3, *mn10300_subsi3): Merge...
        (subsi3): ... here.  Use attribute isa.
        (*subsi3_flags): New.
        (negsi2): Rewrite from expander to insn_and_split.  Use NOT+INC
        when possible.
        (*am33_andsi3, *mn10300_andsi3): Merge...
        (andsi3): ... here.
        (*andsi3_flags): New.
        (andsi3 splitters): New.
        (*am33_iorsi3, *mn10300_iorsi3): Merge...
        (iorsi3): ... here.
        (*iorsi3_flags): New.
        (*am33_xorsi3, *mn10300_xorsi3): Merge...
        (xorsi3): ... here.
        (*xorsi3_flags): New.
        (*am33_cmpsi2, *mn10300_cmplsi2): Merge...
        (one_cmplsi2): ... here.
        (*one_cmplsi2_flags): New.
        (*cbranchsi4_cmp): Rename from cbranchsi4_post_reload.  Use "r"
        instead of "dax" in constraints.  Use mn10300_split_cbranch.
        (*cmpsi): Rename from cmpsi.  Do not use mn10300_output_cmp.  Do not
        use matching constraints to eliminate a self-comparison.
        (*integer_conditional_branch): Rename from integer_conditional_branch.
        Use int_mode_flags to match CC_REG.
        (*cbranchsi4_btst, *btstsi): New.
        (*cbranchsf4_cmp): Rename from *cbranchsf4_post_reload.  Use
        mn10300_split_cbranch.
        (*am33_cmpsf): Rename from am33_cmpsf.
        (*float_conditional_branch): Rename from float_conditional_branch.
        (*zero_extendqisi2_am33, *zero_extendqisi2_mn10300): Merge...
        (zero_extendqisi2): ... here.
        (*zero_extendhisi2_am33, *zero_extendhisi2_mn10300): Merge...
        (zero_extendhisi2): ... here.
        (*extendqisi2_am33, *extendqisi2_mn10300): Merge...
        (extendqisi2): ... here.
        (*extendhisi2_am33, *extendhisi2_mn10300): Merge...
        (extendhisi2): ... here.
        (*am33_ashlsi3, *mn10300_ashlsi3): Merge...
        (ashlsi3): ... here.
        (*am33_lshrsi3, *mn10300_lshrsi3): Merge...
        (lshrsi3): ... here.
        (*am33_ashrisi3, *mn10300_ashrsi3): Merge...
        (ashrsi3): ... here.
        (consecutive add peephole): Remove.
        * config/mn10300/predicates.md (label_ref_operand): New.
        (int_mode_flags): New.
        (CCZN_comparison_operator): New.

        * config/mn10300/mn10300.md (UNSPEC_EXT): New.
        (throughput_42_latency_43): New reservation.
        (mulsidi3, umulsidi3): New expanders.
        (mulsidi3_internal): Rewrite from old mulsidi3 pattern.  Expose
        the MDR register to allocation; separately allocate the low and
        high parts of the DImode result.
        (umulsidi3_internal): Similarly.
        (*am33_mulsi3, *mn10300_mulsi3): Merge into ...
        (*mulsi3): ... here.  Clobber MDR as a scratch as necessary.
        (udivsi3, umodsi3): Remove.
        (udivmodsi4, divmodsi4): New expanders.
        (*udivmodsi4): Rename from udivmodsi4.  Expose MDR properly.
        (*divmodsi4): Simiarly.
        (ext_internal): New.

        * config/mn10300/constraints.md ("z"): New constraint.
        * config/mn10300/mn10300.h (MDR_REGNUM): Remove.
        (FIXED_REGISTERS): Don't fix MDR.
        (CALL_USED_REGSITERS): Reformat nicely.
        (REG_ALLOC_ORDER): Add MDR.
        (enum regclass): Add MDR_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update to match.
        (IRA_COVER_CLASSES): Add MDR_REGS.
        (REGNO_REG_CLASS): Handle MDR_REG.
        * config/mn10300/mn10300.c (mn10300_secondary_reload): Handle MDR_REGS.
        (mn10300_register_move_cost): Likewise.
        * config/mn10300/mn10300.md (MDR_REG): New.
        (*movsi_internal): Handle moves to/from MDR_REGS.

        * config/mn10300/mn10300.c (mn10300_print_operand_address): Handle
        POST_MODIFY.
        (mn10300_secondary_reload): Tidy combination reload classes.
        (mn10300_legitimate_address_p): Allow post-modify and reg+reg
        addresses for AM33.  Allow symbolic offsets for reg+imm.
        (mn10300_regno_in_class_p): New.
        (mn10300_legitimize_reload_address): New.
        * config/mn10300/mn10300.h (enum reg_class): Remove
        DATA_OR_ADDRESS_REGS, DATA_OR_EXTENDED_REGS, ADDRESS_OR_EXTENDED_REGS,
        SP_OR_EXTENDED_REGS, SP_OR_ADDRESS_OR_EXTENDED_REGS.  Add
        SP_OR_GENERAL_REGS.
        (REG_CLASS_NAMES): Update to match.
        (REG_CLASS_CONTENTS): Likewise.
        (INDEX_REG_CLASS): Use GENERAL_REGS for AM33.
        (BASE_REG_CLASS): Use SP_OR_GENERAL_REGS for AM33.
        (REGNO_IN_RANGE_P): Remove.
        (REGNO_DATA_P): Use mn10300_regno_in_class_p.
        (REGNO_ADDRESS_P, REGNO_EXTENDED_P): Likewise.
        (REGNO_STRICT_OK_FOR_BASE_P): Likewise.
        (REGNO_STRICT_OK_FOR_BIT_BASE_P): Likewise.
        (REGNO_STRICT_OK_FOR_INDEX_P): Likewise.
        (REGNO_SP_P, REGNO_AM33_P, REGNO_FP_P): Remove.
        (REGNO_GENERAL_P): New.
        (HAVE_POST_MODIFY_DISP): New.
        (USE_LOAD_POST_INCREMENT, USE_STORE_POST_INCREMENT): New.
        (LEGITIMIZE_RELOAD_ADDRESS): New.
        * config/mn10300/mn10300-protos.h: Update.

        * config/mn10300/mn10300.c (mn10300_preferred_reload_class): Allow
        DATA_REGS for AM33 stack-pointer destination.
        (mn10300_preferred_output_reload_class): Likewise.
        (mn10300_secondary_reload): Rearrange mn10300_secondary_reload_class
        into a form appropriate for ...
        (TARGET_SECONDARY_RELOAD): New.
        * config/mn10300/mn10300.h (SECONDARY_RELOAD_CLASS): Remove.
        * config/mn10300/mn10300-protos.h: Update.
        * config/mn10300/mn10300.md (reload_plus_sp_const): Rename from
        reload_insi; use the "A" constraint for the scratch; handle AM33
        moves of sp to non-address registers.

        * config/mn10300/mn10300.md (*am33_movqi, *mn10300_movqi): Merge into
        (*movqi_internal): ... here.
        (*am33_movhi, *mn10300_movhi): Merge into...
        (*movhi_internal): ... here.
        (*movsi_internal): Use "r" instead of "dax" in constraints.  Use "A"
        as the source/destination of moves from/to SP.
        (movsf): Only allow for AM33-2.
        (*movsf_internal): Use "r" instead of "dax"; use "F" instead of
        any integer constant constraint.  Only allow for AM33-2.  Tidy
        all of the alternative outputs.
        (movdi, movdf, *am33_2_movdf, *mn10300_movdf): Remove.
        (udivmodsi4): Delete expander and promote *udivmodsi4.  Disallow
        for MN103.
        (udivsi3, umodsi3): New patterns for MN103 only.

2011-01-19  Joern Rennecke  <amylaar@spamcop.net>

        * doc/tm.texi.in: Spell out that a lack of register class unions
        can lead to ICEs.
        * doc/tm.texi: Regenerate.

2011-01-19  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/47337
        * dce.c (check_argument_store): New function.
        (find_call_stack_args): Ignore debug insns.  Use check_argument_store.

        PR tree-optimization/47290
        * tree-eh.c (infinite_empty_loop_p): New function.
        (cleanup_empty_eh): Use it.

2011-01-18  Steve Ellcey  <sje@cup.hp.com>

        PR target/46997
        * ia64.c (ia64_expand_unpack): Fix code for TARGET_BIG_ENDIAN.
        (a64_expand_widen_sum): Ditto.
&