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

2011-12-28  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/51623
        * config/rs6000/rs6000.c (rs6000_assemble_integer): Don't call
        unlikely_text_section_p.  Instead check for being in a code
        section.

2011-12-28  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/51684
        * tree-vect-slp.c (vect_schedule_slp_instance): Get gsi of original
        statement in case of a pattern.
        (vect_schedule_slp): Likewise.

2011-12-27  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/51667
        * ree.c (insn_merge_code): Delete.
        (is_insn_merge_attempted): Likewise.
        (get_insn_status): Likewise.
        (set_insn_status): Likewise.
        (struct ext_cand): Add CODE and MODE fields.
        (combine_set_extend): Rename to...
        (combine_set_extension): ...this.  Use above fields and tidy up.
        (transform_ifelse): Likewise.
        (get_defs): Return the chain of definitions.
        (is_this_a_cmove): Merge into...
        (is_cond_copy_insn): ...this.  Return bool.
        (make_defs_and_copies_lists): Adjust calls to get_defs and simplify.
        (merge_def_and_ext): Adjust call to combine_set_extend.
        (combine_reaching_defs): Remove calls to {g|s}et_insn_status.
        (struct extend_info): Rename to...
        (struct re_info): ...this.  Add DEF_MAP field.
        (add_ext_candidate): Merge into...
        (add_removable_extension): ...this.  Adjust calls to get_defs.  Ensure
        reaching definitions are associated with only one kind of extension.
        (find_removable_extensions): Create and destroy the definition map.
        (find_and_remove_re): Return void.  Change 'long' variables to 'int'.
        Do not deal with is_insn_merge_attempted.

2011-12-25  Jan Hubicka  <jh@suse.cz>

        PR middle-end/48641 
        * tree-ssa-threadupdate.c (redirect_edges): Watch for overflow.

2011-12-26  Oleg Endo  <oleg.endo@t-online.de>

        * config/sh/sync.md: Add soft atomics ABI description.
        (fetchop_name): Use 'or' instead of 'ior'.
        (fetchop_insn): Remove.
        (atomic_compare_and_swap<mode>_soft):
        Don't insert aligning nop after the write-back instruction.  Fix
        multi-line asm output formatting style.
        (atomic_fetch_<fetchop_name><mode>_soft): Likewise.
        (atomic_fetch_nand<mode>_soft): Likewise.
        (atomic_<fetchop_name>_fetch<mode>_soft): Likewise.
        (atomic_nand_fetch<mode>_soft): Likewise.

2011-12-23  Richard Henderson  <rth@redhat.com>

        * tree.def (VEC_EXTRACT_EVEN_EXPR, VEC_EXTRACT_ODD_EXPR): Remove.
        * cfgexpand.c (expand_debug_expr): Don't handle them.
        * expr.c (expand_expr_real_2): Likewise.
        * fold-const.c (fold_binary_loc): Likewise.
        * gimple-pretty-print.c (dump_binary_rhs): Likewise.
        * tree-cfg.c (verify_gimple_assign_binary): Likewise.
        * tree-inline.c (estimate_operator_cost): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-vect-generic.c (expand_vector_operations_1): Likewise.
        * optabs.c (optab_for_tree_code): Likewise.
        (can_vec_perm_for_code_p): Remove.
        (expand_binop): Don't try it.
        (init_optabs): Don't init vec_extract_even/odd_optab.
        * genopinit.c (optabs): Likewise.
        * optabs.h (OTI_vec_extract_even, OTI_vec_extract_odd): Remove.
        (vec_extract_even_optab, vec_extract_odd_optab): Remove.
        * tree-vect-data-refs.c (vect_strided_store_supported): Tidy code.
        (vect_permute_store_chain): Use TYPE_VECTOR_SUBPARTS instead of
        GET_MODE_NUNITS; check vect_gen_perm_mask return value instead of
        asserting vect_strided_store_supported.
        (vect_strided_load_supported): Use can_vec_perm_p.
        (vect_permute_load_chain): Use VEC_PERM_EXPR.

        * doc/generic.texi (VEC_EXTRACT_EVEN_EXPR): Remove.
        (VEC_EXTRACT_ODD_EXPR): Remove.
        * doc/md.texi (vec_extract_even, vec_extract_odd): Remove.

2011-12-23  Anatoly Sokolov  <aesok@post.ru>

        * config/score/score.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove.
        * config/score/score-protos.h (score_register_move_cost): Remove.
        * config/score/score.c (TARGET_REGISTER_MOVE_COST): Define.
        (score_register_move_cost): Make static. Change arguments type from
        enum reg_class to reg_class_t.

2011-12-23  Jakub Jelinek  <jakub@redhat.com>
            Richard Henderson  <rth@redhat.com>

        * tree.def (VEC_INTERLEAVE_HIGH_EXPR, VEC_INTERLEAVE_LOW_EXPR): Remove.
        * gimple-pretty-print.c (dump_binary_rhs): Don't handle
        VEC_INTERLEAVE_HIGH_EXPR and VEC_INTERLEAVE_LOW_EXPR.
        * expr.c (expand_expr_real_2): Likewise.
        * tree-cfg.c (verify_gimple_assign_binary): Likewise.
        * cfgexpand.c (expand_debug_expr): Likewise.
        * tree-inline.c (estimate_operator_cost): Likewise.
        * tree-pretty-print.c (dump_generic_node): Likewise.
        * tree-vect-generic.c (expand_vector_operations_1): Likewise.
        * fold-const.c (fold_binary_loc): Likewise.
        * doc/generic.texi (VEC_INTERLEAVE_HIGH_EXPR,
        VEC_INTERLEAVE_LOW_EXPR): Remove documentation.
        * optabs.c (optab_for_tree_code): Don't handle
        VEC_INTERLEAVE_HIGH_EXPR and VEC_INTERLEAVE_LOW_EXPR.
        (expand_binop, init_optabs): Remove vec_interleave_high_optab
        and vec_interleave_low_optab.
        * genopinit.c (optabs): Likewise.
        * optabs.h (OTI_vec_interleave_high, OTI_vec_interleave_low): Remove.
        (vec_interleave_high_optab, vec_interleave_low_optab): Remove.
        * doc/md.texi (vec_interleave_high, vec_interleave_low): Remove
        documentation.
        * tree-vect-stmts.c (gen_perm_mask): Renamed to...
        (vect_gen_perm_mask): ... this.  No longer static.
        (perm_mask_for_reverse, vectorizable_load): Adjust callers.
        * tree-vectorizer.h (vect_gen_perm_mask): New prototype.
        * tree-vect-data-refs.c (vect_strided_store_supported): Don't try
        VEC_INTERLEAVE_*_EXPR, use can_vec_perm_p instead of
        can_vec_perm_for_code_p.
        (vect_permute_store_chain): Generate VEC_PERM_EXPR with interleaving
        masks instead of VEC_INTERLEAVE_HIGH_EXPR and VEC_INTERLEAVE_LOW_EXPR.
        * config/i386/i386.c (expand_vec_perm_interleave2): If
        expand_vec_perm_interleave3 would handle it, return false.
        (expand_vec_perm_broadcast_1): Don't use vec_interleave_*_optab.

2011-12-23  Richard Henderson  <rth@redhat.com>

        * config/mips/loongson.md (UNSPEC_LOONGSON_PINSR_0,
        UNSPEC_LOONGSON_PINSR_1, UNSPEC_LOONGSON_PINSR_2,
        UNSPEC_LOONGSON_PINSR_3): Replace with...
        (UNSPEC_LOONGSON_PINSRH): ... this.
        (UNSPEC_LOONGSON_VINIT): New.
        (UNSPEC_LOONGSON_DSLL, UNSPEC_LOONGSON_DSRL): New.
        (VWB): New mode iterator.
        (V_inner): New mode attribute.
        (loongson_vec_init1_<VHB>): New.
        (*vec_concatv2si): New.
        (and<VWHB>3, ior<VWHB>3, xor<VWHB>3, one_cmpl<VWHB>2): New.
        (*loongson_nor): New.
        (loongson_pextrh): Un-macro-ify.
        (loongson_pmaddhw): Likewise.
        (smaxv4hi3, umaxv8qi3, sminv4hi3, uminv8qi3): Likewise.
        (loongson_pinsrh_0): Represent with vec_select+vec_concat.
        (loongson_pinsrh_1, loongson_pinsrh_2, loongson_pinsrh_3): Likewise.
        (*vec_setv4hi, vec_setv4hi): New.
        (sdot_prodv4hi): New.
        (smax<VWB>3, smin<VWB>3): New.
        (reduc_uplus_v8qi): New.
        (loongson_pshufh): Remove destination matching input.
        (ashl<VWH>3, ashr<VWH>3, lshr<VWH>3): Fix type attribute.
        (vec_interleave_high<VWHB>, vec_interleave_low<VWHB>): Remove.
        (loongson_punpckhbh, loongson_punpckhhw, loongson_punpckhhw_qi,
        loongson_punpckhwd, loongson_punpckhwd_qi, loongson_punpckhwd_hi,
        loongson_punpcklbh, loongson_punpcklhw, loongson_punpcklhw_qi,
        loongson_punpcklwd, loongson_punpcklwd_qi, loongson_punpcklwd_hi,
        vec_perm_const<VWHB>, vec_unpacks_lo_<VHB>, vec_unpacks_hi_<VHB>,
        vec_unpacku_lo_<VHB>, vec_unpacku_hi_<VHB>, vec_shl_<VWHBDI>,
        vec_shr_<VWHBDI>, reduc_uplus_<VWH>, reduc_splus_<VWHB>,
        reduc_smax_<VWHB>, reduc_smin_<VWHB>, reduc_umax_<VWHB>,
        reduc_umin_<VB>): New.
        * config/mips/mips-ps-3d.md (vec_perm_const_ps): New.
        (mips_pul_ps, mips_puu_ps, mips_pll_ps, mips_plu_ps): Expand in
        terms of vec_perm_const_ps.
        (vec_perm_constv2sf): New.
        (vec_initv2sf): Use mips_expand_vector_init.
        (vec_concatv2sf): Rename from vec_initv2sf_internal.
        (vec_setv2sf): Use vec_perm_const_ps.
        (reduc_splus_v2sf, reduc_smin_v2sf, reduc_smax_v2sf): New.
        * config/mips/loongson.h (pshufh_u, pshufh_s): Don't pass dest to
        the builtin.
        * config/mips/mips-modes.def (V16QI, V8HI, V4SI, V4SF): New modes.
        * config/mips/mips-protos.h: Update.
        * config/mips/mips.c (mips_get_arg_info): Match V2SFmode, not all
        MODE_VECTOR_FLOAT.
        (mips_return_mode_in_fpr_p): Likewise.
        (mips_cannot_change_mode_class): Allow 8-byte integral mode changes.
        (CODE_FOR_loongson_punpckhbh, CODE_FOR_loongson_punpckhhw,
        CODE_FOR_loongson_punpckhwd, CODE_FOR_loongson_punpcklbh,
        CODE_FOR_loongson_punpcklhw, CODE_FOR_loongson_punpcklwd): Remove.
        (mips_builtins): Remove first operand for loongson pshufh builtins.
        (MAX_VECT_LEN, struct expand_vec_perm_d): New.
        (mips_expand_vselect, mips_expand_vselect_vconcat,
        mips_expand_vpc_loongson_even_odd, mips_expand_vpc_loongson_pshufh,
        mips_expand_vpc_loongson_bcast, mips_expand_vec_perm_const_1,
        mips_expand_vec_perm_const, mips_vectorize_vec_perm_const_ok,
        mips_expand_vec_unpack, mips_constant_elt_p, mips_expand_vi_broadcast,
        mips_expand_vi_constant, mips_expand_vi_loongson_one_pinsrh,
        mips_expand_vi_general, mips_expand_vec_reduc, mips_expand_vec_minmax,
        TARGET_VECTORIZE_VEC_PERM_CONST_OK): New.
        (mips_expand_vector_init): Rewrite.
        * config/mips/predicates.md (const_2_or_3_operand): New.
        (const_0_to_3_operand): New.

2011-12-23  Dmitry Plotnikov  <dplotnikov@ispras.ru>

        * config/arm/neon.md (float<mode><V_cvtto>2): New.
        (floatuns<mode><V_cvtto>2): New.
        (fix_trunc<mode><V_cvtto>2): New.
        (fix_truncuns<mode><V_cvtto>2): New.
        * config/arm/iterators.md (V_cvtto): New iterator.

2011-12-23  Richard Guenther  <rguenther@suse.de>

        PR rtl-optimization/50396
        * simplify-rtx.c (simplify_binary_operation_1): Properly
        guard code that only works for integers.

2011-12-23  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-crtlmap.map (log10): Fix typo.

2011-12-23  Tristan Gingold  <gingold@adacore.com>

        * config/ia64/vms.h (SUPPORTS_ONE_ONLY): Define.

2011-12-22  Bin Cheng  <bin.cheng@arm.com>
        Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43491
        * tree-ssa-pre.c (eliminate): Don't replace global register
        variable when it is the RHS of a single assign.

2011-12-22  Joey Ye  <joey.ye@arm.com>

        * toplev.c (process_options): Fix typo.

2011-12-22  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/51252
        * config/pa/pa.c (pa_som_tm_clone_table_section): New function.
        (som_tm_clone_table_section): Declare.
        (pa_file_start_space): Create $TM_CLONE_TABLE$ subspace.
        (pa_som_asm_init_sections): Init som_tm_clone_table_section.
        * config/pa/som.h (TARGET_ASM_TM_CLONE_TABLE_SECTION): Define.

2011-12-22  Richard Sandiford  <rdsandiford@googlemail.com>

        * doc/tm.texi.in (TARGET_PREPARE_PCH_SAVE): New hook.
        * doc/tm.texi: Regenerate.
        * target.def (prepare_pch_save): New hook.
        * c-family/c-pch.c (c_common_write_pch): Call it.
        * config/mips/mips.c (was_mips16_pch_p): Delete.
        (mips_set_mips16_mode): Don't refer to was_mips16_pch_p.
        (mips_prepare_pch_save): New function.
        (TARGET_PREPARE_PCH_SAVE): Define.

2011-12-22  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51212
        * opts.c (finish_options): Call sorry on -fgnu-tm and
        -fnon-call-exceptions combination.

2011-12-22  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/invoke.texi (C++ Dialect Options): Add missing options and
        move -Wzero-as-null-pointer-constant to ...
        (Warning Options): ... here.

2011-12-22  Jonathan Wakely  <jwakely.gcc@gmail.com>

        PR target/47643
        * doc/invoke.texi (i386 and x86-64 Options): Fix description of
        -mtune without -march.

2011-12-21  Richard Earnshaw  <rearnsha@arm.com>

        PR target/51643
        * arm.c (arm_function_ok_for_sibcall): Use DECL_WEAK in previous
        change.

2011-12-22  Tristan Gingold  <gingold@adacore.com>

        * config/ia64/ia64.c (ia64_promote_function_mode): Remove.
        (TARGET_PROMOTE_FUNCTION_MODE): Remove.
        (ia64_function_value): Call promote_function_mode instead of
        ia64_promote_function_mode.
        * config/ia64/vms.h (PROMOTE_MODE): Define.
        (TARGET_PROMOTE_FUNCTION_MODE): Define.

2011-12-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/27468
        * common/config/alpha/alpha-common.c (alpha_option_optimization_table):
        Enable flag_ree at -O2 or higher.

2011-12-22  Richard Guenther  <rguenther@suse.de>

        PR lto/51650
        * lto.c (uniquify_nodes): Register TYPE_DECLs with the
        debuginfo machinery.

2011-12-22  Bernd Schmidt  <bernds@codesourcery.com>

        * tree-pass.h (pass_reload): Declare.
        * ira.c (overall_cost_before, saved_flag_ira_share_spill_slots):
        New global variables, moved out of ira.
        (do_reload): New static function, split off from the second half
        of ...
        (ira): ... here.
        (gate_ira): Remove.
        (pass_ira): Use TV_IRA, set gate to NULL, and set flags to
        TODO_dump_func.
        (rest_of_handle_reload): New static function.
        (pass_reload): New.

2011-12-22  Uros Bizjak  <ubizjak@gmail.com>

        * common/config/i386/i386-common.c (ix86_option_optimization_table):
        Move OPT_free processing from ...
        * config/i386/i386.c (ix86_option_override_internal):  ... here.

2011-12-21  Richard Earnshaw  <rearnsha@arm.com>

        PR target/51643
        * arm.c (arm_function_ok_for_sibcall): Don't try to tailcall a
        weak function on bare-metal EABI targets.

2011-12-21  Jonathan Wakely  <jwakely.gcc@gmail.com>
            Jim Avera  <james_avera@yahoo.com>

        * doc/extend.texi (__builtin_expect): Improve example.

2011-12-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_option_override_internal): Enable flag_ree
        also for 32bit targets.

2011-12-21  Richard Henderson  <rth@redhat.com>

        PR target/51552
        * dwarf2cfi.c (dwarf2out_frame_debug): Move any_cfis_emitted code...
        (scan_trace): ... here.

2011-12-21  Jason Merrill  <jason@redhat.com>

        * doc/standards.texi (C++ language): Update for C++11.

2011-12-21  Jakub Jelinek  <jakub@redhat.com>

        * tree-vect-patterns.c (vect_operation_fits_smaller_type): Initialize
        *op0 and *op1 to NULL_TREE first to avoid warnings.
        * calls.c (initialize_argument_information): Initialize base to avoid
        warnings.

        PR middle-end/51644
        PR middle-end/51647
        * tree-eh.c (decide_copy_try_finally): At -O0, return true
        even when ndests is not 1, if there are only gimple_clobber_p
        (or debug) stmts in the finally sequence.
        * tree-inline.c (estimate_num_insns): Return 0 for gimple_clobber_p
        stmts.

2011-12-21  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51472
        * trans-mem.c (tm_log_add): Use create_tmp_var_reg.

2011-12-21  Martin Jambor  <mjambor@suse.cz>

        * tree-into-ssa.c (rewrite_update_stmt): Do not dump extra newlines.
        (rewrite_update_enter_block): Likewise.
        (dump_update_ssa): Likewise.
        (update_ssa): Likewise but also dump a newline at the beginning.

2011-12-21  Enkovich Ilya  <ilya.enkovich@intel.com>

        PR target/50038
        * implicit-zee.c: Delete.
        * ree.c: New file.
        * Makefile.in: Replace implicit-zee.c with ree.c.
        * config/i386/i386.c (ix86_option_override_internal): Rename
        flag_zee to flag_ree.
        * common.opt (fzee): Ignored.
        (free): New.
        * passes.c (init_optimization_passes): Replace pass_implicit_zee
        with pass_ree.
        * tree-pass.h (pass_implicit_zee): Delete.
        (pass_ree): New.
        * timevar.def (TV_ZEE): Delete.
        (TV_REE): New.
        * doc/invoke.texi: Add -free description.

2011-12-21  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms-protos.h (vms_function_section): New prototype.
        * config/vms/vms.c (vms_function_section): New function.
        * config/vms/vms.h (TARGET_ASM_FUNCTION_SECTION): Define.

2011-12-21  Richard Guenther  <rguenther@suse.de>

        PR lto/41159
        * tree-outof-ssa.c (insert_value_copy_on_edge): Use the
        mode of the pseudo as destination mode.  Only assert that
        is equal to the promoted mode of the decl if it is a REG.

2011-12-21  Tristan Gingold  <gingold@adacore.com>

        * config/vms/xm-vms.h (STANDARD_EXEC_PREFIX): Remove define.

2011-12-20  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (MAX_VECT_LEN): New.
        (struct expand_vec_perm_d): New.
        (TARGET_VECTORIZE_VEC_PERM_CONST_OK): New.
        (ia64_unpack_assemble): Use ia64_expand_vec_perm_const_1.
        (expand_vselect, expand_vselect_vconcat): New.
        (expand_vec_perm_identity, expand_vec_perm_shrp): New.
        (expand_vec_perm_1, expand_vec_perm_broadcast): New.
        (expand_vec_perm_interleave_2, expand_vec_perm_v4hi_5): New.
        (ia64_expand_vec_perm_const_1, ia64_expand_vec_perm_const): New.
        (ia64_vectorize_vec_perm_const_ok): New.
        (ia64_expand_vec_setv2sf, ia64_expand_vec_perm_even_odd): New.
        * config/ia64/ia64-protos.h: Update.
        * config/ia64/vect.md (VEC): New mode iterator.
        (vecint): New mode attribute.
        (vec_interleave_lowv8qi, vec_interleave_highv8qi): Privatize with '*'.
        (vec_interleave_lowv4hi, vec_interleave_highv4hi): Likewise.
        (vec_interleave_lowv2si, vec_interleave_highv2si): Likewise.
        (vec_interleave_lowv2sf, vec_interleave_highv2sf): Likewise.
        (mix1_even, mix1_odd, mux1_alt): Likewise.
        (mux1_brcst_qi): Remove '*' from name.
        (vec_extract_evenv8qi, vec_extract_oddv8qi): Remove.
        (vec_extract_evenv4hi, vec_extract_oddv4hi): Remove.
        (vec_extract_evenv2si, vec_extract_oddv2si): Remove.
        (vec_extract_evenv2sf, vec_extract_oddv2sf): Remove.
        (vec_extract_evenodd_helper): Remove.
        (vec_setv2sf): Use ia64_expand_vec_setv2sf.
        (vec_pack_trunc_v4hi): Use ia64_expand_vec_perm_even_odd.
        (vec_pack_trunc_v2si): Likewise.
        (vec_perm_const<VEC>): New.

2011-12-20  Richard Henderson  <rth@redhat.com>

        * tree-vect-generic.c (expand_vector_operations_1): Correct tests
        for vector types -- use the type not the mode.  Fix optab selection
        for vector shifts by a scalar.  Handle over-large integer modes
        like BLKmode.

2011-12-20  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.md (*arm_xorsi3): Match iorsi3 and perform
        post-reload splitting.

        * config/arm/arm.md (*arm_cmpdi_unsigned): Enable for thumb2.
        * config/arm/arm.c (arm_select_cc_mode): Use it.

2011-12-20  Richard Sandiford  <rdsandiford@googlemail.com>

        * tree-ssa-math-opts.c (convert_plusminus_to_widen): Restrict
        handling of signedness differences to integer types.  Only build
        a new optype if type1 isn't correct.

2011-12-20  Vladimir Makarov  <vmakarov@redhat.com>

        PR target/49865
        * ira-costs.c (find_costs_and_classes): Prefer registers even
        if the memory cost is the same.

2011-12-20  Joseph Myers  <joseph@codesourcery.com>

        * c-decl.c (diagnose_mismatched_decls, grokdeclarator, grokfield)
        (finish_struct): Refer to C11 in comments.  Use flag_isoc11.
        * c-parser.c (c_parser_static_assert_declaration)
        (c_parser_static_assert_declaration_no_semi, c_parser_declspecs)
        (c_parser_alignas_specifier, c_parser_alignof_expression): Refer
        to C11 in comments.  Use flag_isoc11.
        * c-typeck.c (comptypes_check_different_types): Refer to C11 in
        comment.
        * doc/cpp.texi (Overview): Refer to -std=c11 instead of -std=c1x.
        * doc/cppopts.texi (-std=c11, -std=gnu11): Document in preference
        to -std=c1x and -std=gnu1x.
        * doc/extend.texi (Inline, Alternate Keywords, Other Builtins)
        (__builtin_complex, Unnamed Fields): Refer to -std=c11 and C11
        instead of -std=c1x and C1X.
        * doc/invoke.texi (-std=c11, -std=iso9899:2011): Document in
        preference to -std=c1x.
        (-std=gnu11): Document in preference to -std=gnu1x.
        * doc/standards.texi: Document C11 instead of C1X.  Document C11
        as actual standard.  Document headers required from freestanding
        C11 implementations.
        * ginclude/float.h, ginclude/stddef.h: Test __STDC_VERSION__ >=
        201112L for C11.  Update comments to refer to C11.

2011-12-20  Andreas Schwab  <schwab@linux-m68k.org>

        * configure: Regenerate.

2011-12-20  Bernd Schmidt  <bernds@codesourcery.com>

        PR middle-end/51200
        * expr.c (store_field): Avoid a direct store if the mode is larger
        than the size of the bit field.
        * stor-layout.c (layout_decl): If flag_strict_volatile_bitfields,
        treat non-volatile bit fields like volatile ones.
        * toplev.c (process_options): Disallow combination of
        -fstrict-volatile-bitfields and ABI versions less than 2.
        * config/arm/arm.c (arm_option_override): Don't enable
        flag_strict_volatile_bitfields if the ABI version is less than 2.
        * config/h8300/h8300.c (h8300_option_override): Likewise.
        * config/rx/rx.c (rx_option_override): Likewise.
        * config/m32c/m32c.c (m32c_option_override): Likewise.
        * config/sh/sh.c (sh_option_override): Likewise.

2011-12-20  Richard Guenther  <rguenther@suse.de>

        PR lto/46796
        * dwarf2out.c (modified_type_die): When the type variant
        chain is corrupt use the types name, if available, instead
        of __unknown__.

2011-12-20  Tristan Gingold  <gingold@adacore.com>

        * config/alpha/alpha.c (alpha_start_function): Adjust condition to
        create VMS trampoline entry point.

2011-12-19  Richard Sandiford  <rdsandiford@googlemail.com>

        PR rtl-optimization/42839
        * fwprop.c (forward_propagate_subreg): Skip the SIGN/ZERO_EXTEND
        optimization if the source register is already extended.

2011-12-19  Richard Sandiford  <rdsandiford@googlemail.com>

        * lower-subreg.c (can_decompose_p): Check every word of a hard
        register.

2011-12-19  Sandra Loosemore  <sandra@codesourcery.com>
            Tom de Vries <tom@codesourcery.com>

        PR rtl-opt/50380
        * cse.c (find_comparison_args): Detect fixed point and
        bail early.

2011-12-19  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51411
        * trans-mem.c (ipa_tm_create_version): Unset DECL_WEAK.

2011-12-19  Quentin Neill  <quentin.neill@amd.com>

        PR target/48743
        * config/i386/driver-i386.c (host_detect_local_cpu): Also check
        family to distinguish PROCESSOR_ATHLON.

2011-12-19  Richard Guenther  <rguenther@suse.de>

        PR lto/51573
        * streamer-hooks.h (struct streamer_hooks): Add second
        ref_p parameter to write_tree.
        (stream_write_tree): Adjust.
        (stream_write_tree_shallow_non_ref): New define.
        * lto-streamer.h (lto_output_tree): Adjust.
        * lto-streamer-out.c (lto_output_tree): Likewise.
        * tree-streamer-out.c (streamer_write_chain): Only
        force the immediate tree to be streamed as non-reference.

2011-12-19  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/51583
        * tree-sra.c (load_assign_lhs_subreplacements): Call
        force_gimple_operand_gsi when necessary also in case of no
        corresponding replacement on the RHS.

2011-12-19  Jakub Jelinek  <jakub@redhat.com>

        * gimple.h (gimplify_seq_add_stmt): Rename to...
        (gimple_seq_add_stmt_without_update): ... this.
        * gimplify.c (gimplify_seq_add_stmt): Rename to...
        (gimple_seq_add_stmt_without_update): ... this.
        (gimplify_seq_add_stmt): New inline wrapper for it.
        * tree-vect-patterns.c (append_pattern_def_seq): Use
        gimple_seq_add_stmt_without_update instead of gimplify_seq_add_stmt.

        PR tree-optimization/51596
        * tree-cfg.c (replace_uses_by): Call gimple_purge_dead_eh_edges
        when needed.

        PR middle-end/51590
        PR tree-optimization/51606
        * tree-vect-patterns.c (append_pattern_def_seq, new_pattern_def_seq):
        New inline functions.
        (vect_recog_over_widening_pattern,
        vect_recog_vector_vector_shift_pattern,
        vect_recog_sdivmod_pow2_pattern, vect_recog_mixed_size_cond_pattern,
        adjust_bool_pattern_cast, vect_recog_bool_pattern): Use them.

2011-12-19  Richard Guenther  <rguenther@suse.de>

        PR lto/51572
        * tree.c (free_lang_data_in_type): Do not unlink TYPE_DECL
        from TYPE_FIELDS.
        (find_decls_types_r): Walk TYPE_DECLs in TYPE_FIELDS.
        * tree-streamer-out.c (write_ts_field_decl_tree_pointers): Do
        not stream TREE_CHAIN.
        (write_ts_type_non_common_tree_pointers): Stream TYPE_FIELDS
        using streamer_write_chain.
        * tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
        Do not stream TREE_CHAIN.
        (lto_input_ts_type_non_common_tree_pointers): Stream TYPE_FIELDS
        using streamer_read_chain.
        * gimple-streamer-in.c (input_gimple_stmt): Skip non-FIELD_DECLs.
        * gimple.c (gimple_canonical_types_compatible_p): Properly
        handle trailing non-FIELD_DECLs in TYPE_FIELDS.

2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>

        * configure: Regenerate.

2011-12-19  Bernd Schmidt  <bernds@codesourcery.com>

        * emit-rtl.c (init_emit_once): Initialize const_tiny_rtx[3] for
        partial integer modes.

2011-12-19  Andreas Schwab  <schwab@linux-m68k.org>

        PR target/51532
        * config/m68k/m68k.h (FL_CAS, TARGET_CAS): Define.
        * config/m68k/m68k.c (FL_FOR_isa_20): Add FL_CAS.
        * config/m68k/sync.md: Use TARGET_CAS instead of (TARGET_68020 ||
        TARGET_68040).

2011-12-18  Anatoly Sokolov  <aesok@post.ru>

        * config/ia64/ia64.h (REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
        LEGITIMATE_ADDRESS_REG, LEGITIMATE_ADDRESS_DISP,
        GO_IF_LEGITIMATE_ADDRESS): Remove macros.
        * config/ia64/ia64.c (TARGET_LEGITIMATE_ADDRESS_P): Define.
        (ia64_reg_ok_for_base_p, ia64_legitimate_address_reg,
        ia64_legitimate_address_disp, ia64_legitimate_address_p): New
        functions.

2011-12-17  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/51491
        * tree-ssa-ccp.c (insert_clobber_before_stack_restore)
        (gsi_prev_dom_bb_nondebug, insert_clobbers_for_var): New function.
        (ccp_fold_stmt): Use insert_clobbers_for_var after a successful
        fold_builtin_alloca_with_align.
        (ccp_visit_stmt): Calculate and free dominator info.

2011-12-16  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (UNSPEC_FRAME_BLOCKAGE): New constant.
        (frame_blockage): New expander.
        (frame_blockage<P:mode>): New instruction.
        * config/sparc/sparc.c (sparc_expand_prologue): When the sequence of
        instructions establishing the frame isn't atomic, emit frame blockage.

2011-12-16  Tristan Gingold  <gingold@adacore.com>

        * config/alpha/vms.h (USE_TM_CLONE_REGISTRY): Define.

2011-12-16  Tristan Gingold  <gingold@adacore.com>

        * config/alpha/alpha.c (alpha_use_linkage): Follow transparent alias.
        (alpha_write_one_linkage): Use assemble_name to emit linkage name.

2011-12-16  Tristan Gingold  <gingold@adacore.com>

        * config/vms/t-vms (vms.o, vms-c.o): Force output filename.

2011-12-16  Tristan Gingold  <gingold@adacore.com>

        * config/vms/vms.c (VMS_CRTL_GLOBAL): Define.
        (vms_patch_builtins): Handle.
        * config/vms/vms-crtlmap.map: Add an entry for environ.

2011-12-16  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51557
        * sel-sched-ir.c (create_copy_of_insn_rtx): Copy all notes
        other than REG_EQUAL, REG_EQUIV and REG_LABEL_OPERAND.

        PR tree-optimization/51576
        * tree-cfg.c (replace_uses_by): Call maybe_clean_or_replace_eh_stmt
        even if fold_stmt didn't change anything.

2011-12-16  Richard Guenther  <rguenther@suse.de>

        PR lto/51572
        * dwarf2out.c (gen_type_die_with_usage): Use the context of
        the TYPE_DECL as well if it is file-scope.

2011-12-15  DJ Delorie  <dj@redhat.com>

        * config/rl78/rl78.md (return): Rename to rl78_return.
        * config/rl78/rl78.c (rl78_expand_epilogue): Use new name.
        (rl78_expand_eh_epilogue): Use new name.
        (rl78_calculate_death_notes): Likewise.

2011-12-15  Jakub Jelinek  <jakub@redhat.com>

        * tree-vectorizer.h (struct _stmt_vec_info): Remove pattern_def_stmt
        field, add pattern_def_seq.
        (STMT_VINFO_PATTERN_DEF_STMT): Remove.
        (STMT_VINFO_PATTERN_DEF_SEQ): Define.
        (NUM_PATTERNS): Bump to 10.
        * tree-vect-loop.c (vect_determine_vectorization_factor,
        vect_transform_loop): Adjust for pattern def changing from a single
        gimple stmt to gimple_seq.
        * tree-vect-stmts.c (vect_analyze_stmt, new_stmt_vec_info,
        free_stmt_vec_info): Likewise.
        * tree-vect-patterns.c (vect_recog_over_widening_pattern,
        vect_recog_vector_vector_shift_pattern,
        vect_recog_mixed_size_cond_pattern, adjust_bool_pattern_cast,
        adjust_bool_pattern, vect_mark_pattern_stmts): Likewise.
        (vect_recog_sdivmod_pow2_pattern): New function.
        (vect_vect_recog_func_ptrs): Add it.

        * config/i386/sse.md (vcond<V_256:mode><VI_256:mode>,
        vcond<V_128:mode><VI124_128:mode>, vcond<VI8F_128:mode>v2di):
        Use general_operand instead of nonimmediate_operand for
        operand 5 and no predicate for operands 1 and 2.
        * config/i386/i386.c (ix86_expand_int_vcond): Optimize
        x < 0 ? -1 : 0 and x < 0 ? 1 : 0 into vector arithmetic
        resp. logical shift.

2011-12-15  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (print_operand): Remove.
        (print_operand_address): Remove.
        * config/avr/avr.h (PRINT_OPERAND): Remove.
        (PRINT_OPERAND_ADDRESS): Remove.
        (PRINT_OPERAND_PUNCT_VALID_P): Remove.
        * config/avr/avr.c (TARGET_PRINT_OPERAND): New hook define.
        (TARGET_PRINT_OPERAND_ADDRESS): New hook define.
        (TARGET_PRINT_OPERAND_PUNCT_VALID_P): New hook define.
        (print_operand_address): Rename to...
        (avr_print_operand_address): ...this and make static.
        (print_operand): Rename to...
        (avr_print_operand): ...this and make static.
        (avr_print_operand_punct_valid_p): New static function.

2011-12-15  Andreas Tobler  <andreast@fgznet.ch>

        * config/i386/freebsd.h (TARGET_ASM_FILE_END): Define.

2011-12-15  Jakub Jelinek  <jakub@redhat.com>

        PR c/51360
        * c-parser.c (c_parser_omp_clause_num_threads,
        c_parser_omp_clause_schedule): Call mark_exp_read.

2011-12-15  Romain Geissler  <romain.geissler@gmail.com>

        * builtins.def (BUILT_IN_STPNCPY_CHK): New definition.
        * builtins.c (expand_builtin, fold_builtin_4, maybe_emit_chk_warning):
        Add BUILT_IN_STPNCPY_CHK case.
        * gimple-fold.c (gimple_fold_builtin): Likewise.
        * tree-object-size.c (pass_through_call): Likewise.
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1,
        call_may_clobber_ref_p_1): Likewise.
        * tree-ssa-structalias.c (find_func_aliases_for_builtin_call,
        find_func_clobbers): Likewise.
        * tree.h (fold_builtin_strncpy_chk): Rename to fold_builtin_stxncpy_chk
        * builtins.c (fold_builtin_strncpy_chk): Likewise.
        Rewrite stpncpy_chk calls to strncpy_chk calls if returned value is
        ignored.

2011-12-15  Richard Guenther  <rguenther@suse.de>

        PR lto/51567
        * gimple.c (compare_type_names_p): Also compare the TREE_CODE.
        (iterative_hash_name): Also hash the TREE_CODE.
        (gimple_types_compatible_p_1): For types with a TYPE_DECL
        name and a type DECL_CONTEXT recurse to that type.
        (iterative_hash_gimple_type): Likewise.

2011-12-15  Iain Sandoe  <iains@gcc.gnu.org>

        * config/rs6000/rs6000.c  (rs6000_emit_prologue): Move update of
        VRSave mask to save_world() when that is in use.

2011-12-15  Richard Guenther  <rguenther@suse.de>

        * lto-wrapper.c (run_gcc): In non-parallel mode remove
        ltrans inputs immediately after processing them.  In parallel
        mode truncate the ltrans inputs in the make rule that processes
        them if temporary files are not to be preserved.

2011-12-15  Anatoly Sokolov  <aesok@post.ru>

        * config/arm/arm.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove.
        * config/arm/arm.c (arm_memory_move_cost, arm_register_move_cost):
        New functions.
        (TARGET_REGISTER_MOVE_COST, TARGET_MEMORY_MOVE_COST): Define.

2011-12-15  Richard Guenther  <rguenther@suse.de>

        PR lto/51564
        * tree.h (REGISTER_DEFS_IN_THIS_STMT, NECESSARY,
        STMT_IN_SSA_EDGE_WORKLIST): Remove no longer existing flag
        uses documentation.
        (TREE_ASM_WRITTEN): Update documentation to mention its use
        on TYPE_DECLs from debug info generation.
        * tree-streamer-out.c (pack_ts_base_value_fields): Stream
        TREE_ASM_WRITTEN as always zero for TYPE_DECLs, similar to
        all other types.

2011-12-15  Georg-Johann Lay  <avr@gjlay.de>

        PR target/51050
        * config/avr/avr.c (expand_epilogue): Don't build SUBREG of fp.
        (avr_prologue_setup_frame): Ditto.

2011-12-15  Jakub Jelinek  <jakub@redhat.com>

        PR debug/51517
        * tree-ssa-coalesce.c (coalesce_ssa_name): For !optimize, test
        !DECL_IGNORED_P instead of !DECL_ARTIFICIAL.

2012-12-15  Richard Guenther  <rguenther@suse.de>

        Revert
        PR lto/48437
        * lto-streamer-out.c (tree_is_indexable): Exclude block-local
        extern declarations.

        PR lto/48508
        PR lto/48437
        * tree-streamer-out.c (streamer_write_chain): Stream DECL_EXTERNAL
        VAR_DECLs and FUNCTION_DECLs locally.

2011-12-14  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.md (*addsi3_compare0_scratch): Set predicable.
        (*compare_negsi_si, *compare_addsi2_op0): Likewise.
        (*compare_addsi2_op1, *zeroextractsi_compare0_scratch): Likewise.
        (*compareqi_eq0, *arm_cmpsi_insn, *arm_cmpsi_negshiftsi_si): Likewise.

2011-12-14  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (replace_uses_by): Fixup TREE_CONSTANT for
        propagating all kinds of constants.

2011-12-14  Richard Guenther  <rguenther@suse.de>

        PR lto/51497
        * lto-streamer-in.c (lto_read_body): Fixup local types
        TYPE_CANONICAL and variant chain.

2011-12-14  Richard Guenther  <rguenther@suse.de>

        * tree.c (free_lang_data_in_type): Do not clear fields
        dependent on debuginfo level setting.
        (find_decls_types_r): Use TYPE_STUB_DECL rathern than TREE_CHAIN.
        * tree.h (TYPE_STUB_DECL): Properly check that we access a type.

2011-12-14  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50931
        * config/avr/avr.md (mulpsi3): New expander.
        (*umulqihipsi3, *umulhiqipsi3): New insns.
        (*mulsqipsi3.libgcc, *mulpsi3.libgcc): New insns.
        (mulsqipsi3, *mulpsi3): New insn-and-splits.
        (ashlpsi3): Turn to expander.  Move insn code to...
        (*ashlpsi3): ...this new insn.

2011-12-14  Richard Guenther  <rguenther@suse.de>

        * tree-cfg.c (replace_uses_by): Only mark blocks altered
        that will make a difference.  Only recompute ADDR_EXPR
        invariantness if it could possibly have changed.  Do so
        before folding the statement.

2011-12-13  Eric Botcazou  <ebotcazou@adacore.com>

        * lto-streamer-out.c (write_symbol): Use proper 64-bit host type.
        * lto-cgraph.c (input_cgraph_opt_section): Use 'int' for offsets.
        * lto-streamer-in.c (lto_read_body): Likewise.
        (lto_input_toplevel_asms): Likewise.
        * lto-section-in.c (lto_create_simple_input_block): Likewise.
        * ipa-inline-analysis.c (inline_read_section): Likewise.
        * ipa-prop.c (ipa_prop_read_section): Likewise.

        * df.h (DF_NOTE): Fix typo in comment.

2011-12-13  Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c (ipa_tm_create_version_alias): Set DECL_CONTEXT and
        DECL_LANG_SPECIFIC.

2011-12-13  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * regmove.c (fixup_match_2): Only access call_used_regs with hard regs.

2011-12-13  Andrew Pinski  <apinski@cavium.com>
            Adam Nemet  <anemet@caviumnetworks.com>

        * config/mips/mips-cpus.def: Add Octeon2.
        * config/mips/mips-tables.opt: Regenerate.
        * config/mips/mips.md (define_attr "cpu"): Add Octeon2.
        * config/mips/driver-native.c (host_detect_local_cpu): Support Octeon2.
        * config/mips/octeon.md (octeon_arith): Add Octeon2.
        (octeon_condmove): Likewise.
        (octeon_load): Rename to ..
        (octeon_load_o1): this.
        (octeon_load_o2): New reserve.
        (octeon_cop_o2): New reserve.
        (octeon_store):  Match Octeon2 also.
        (octeon_brj): Rename to ..
        (octeon_brj_o1): this.
        (octeon_brj_o2): New reserve.
        (octeon_imul3): Rename to ...
        (octeon_imul3_o1): this.
        (octeon_imul3_o2): New reserve.
        (octeon_imul): Rename to ...
        (octeon_imul_o1): this.
        (octeon_imul_o2): New reserve.
        (octeon_mfhilo): Rename to ...
        (octeon_mfhilo_o1): This.
        (octeon_mfhilo_o2): New reserve.
        (octeon_imadd): Rename to ...
        (octeon_imadd_o1): this.
        (octeon_imadd_o2): New reserve.
        (octeon_idiv): Rename to ..
        (octeon_idiv_o1): This.
        (octeon_idiv_o2_si): New reserve.
        (octeon_idiv_o2_di): Likewise.
        (octeon_unknown): Match Octeon2 also.
        * config/mips/mips.c (mips_rtx_cost_data): Add Octeon2 cost data.
        (mips_issue_rate): Octeon2 can issue 2 at a time.
        * config/mips/mips.h (TARGET_OCTEON): Match Octeon2 also.
        (TARGET_OCTEON2): New define.
        (TUNE_OCTEON): Match Octeon2 also.

2011-12-13  Richard Henderson  <rth@redhat.com>

        * config/sparc/tso.h: New file.
        * config.gcc (sparc-*-linux*, sparc*-*-solaris2*): Use it.
        * config/sparc/sparc.c (sparc_option_override): Honor
        SUBTARGET_DEFAULT_MEMORY_MODEL.
        * config/sparc/sparc.h (SUBTARGET_DEFAULT_MEMORY_MODEL): New.

2011-12-13  Aldy Hernandez  <aldyh@redhat.com>

        PR middle-end/51443
        * trans-mem.c (struct diagnose_tm): Remove saw_unsafe.
        (diagnose_tm_1): Same.
        (ipa_tm_execute): Do not test tm_may_enter_irr before we set it.
        (ipa_tm_scan_irr_function): Return gracefully when no
        DECL_STRUCT_FUNCTION.
        (ipa_tm_scan_irr_block): Believe the user on TM attributes.

2011-12-13  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/50628
        * tree-sra.c (propagate_subaccesses_across_link): Do not propagate
        sub-accesses of scalar accesses.

2011-12-13  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/51362
        * ipa-cp.c (estimate_local_effects): When estimated size of a
        specialized clone is zero, bump it to one.

2011-12-13  Richard Guenther  <rguenther@suse.de>

        PR lto/48354
        * tree.c (find_decls_types_r): Also walk DECL_ORIGINAL_TYPE.
        * tree-streamer-in.c (lto_input_ts_decl_non_common_tree_pointers):
        Stream DECL_ORIGINAL_TYPE.
        * tree-streamer-out.c (write_ts_decl_non_common_tree_pointers):
        Likewise.

2011-12-13  Jakub Jelinek  <jakub@redhat.com>

        Revert
        2011-12-12  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51481
        * gimple-fold.c (gimple_fold_call): Call
        maybe_clean_or_replace_eh_stmt.  Avoid optimization if stmt has EH
        edges, but gimple_fold_builtin result can't throw.

2011-12-13  Jakub Jelinek  <jakub@redhat.com>
            Michael Matz  <matz@suse.de>

        PR tree-optimization/51117
        * tree-eh.c (sink_clobbers): New function.
        (execute_lower_eh_dispatch): Call it for BBs ending with
        internally throwing RESX.
        * cfgexpand.c (add_scope_conflicts_1): Add all conflicts only
        at the first real instruction.

2011-12-13  Tristan Gingold  <gingold@adacore.com>

        * final.c (final_scan_insn): Guard the call to begin_epilogue
        debug hook.

2011-12-13  Tristan Gingold  <gingold@adacore.com>

        * vmsdbgout.c (vmsdbgout_write_source_line): New function.
        (vmsdbgout_end_prologue): Call vmsdbgout_write_source_line.
        (vmsdbgout_begin_epilogue): Likewise.
        (vmsdbgout_end_epilogue): Likewise.
        (vmsdbgout_source_line): Move code to vmsdbgout_write_source_line.

2011-12-13  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51481
        * tree-cfg.c (replace_uses_by): Pass proper arguments to
        maybe_clean_or_replace_eh_stmt.

2011-12-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51519
        * ipa-inline.c (edge_badness): Use edge growth in non-guessed
        branch probability case as well.

2011-12-13  Revital Eres  <revital.eres@linaro.org>

        * modulo-sched.c (mark_loop_unsched): Free bbs.

2011-12-12  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51495
        * function.c (thread_prologue_and_epilogue_insns): Don't add
        to bb_tail basic blocks that have EDGE_COMPLEX predecessor edges
        from basic blocks not needing prologue.

        PR tree-optimization/51481
        * gimple-fold.c (gimple_fold_call): Call
        maybe_clean_or_replace_eh_stmt.  Avoid optimization if stmt has EH
        edges, but gimple_fold_builtin result can't throw.

2011-12-12  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/21617
        * ira-color.c (bucket_allocno_compare_func): Don't compare
        allocno classes.  Compare number of hard registers needed.

2011-12-12  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/50569
        * tree-sra.c (build_ref_for_model): Replicate a chain of COMPONENT_REFs
        in the expression of MODEL instead of just the last one.

2011-12-12  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/51510
        * calls.c (internal_arg_pointer_based_exp_scan): Don't use
        VEC_safe_grow_cleared if idx is smaller than VEC_length.

2011-12-12  Richard Sandiford  <richard.sandiford@linaro.org>

        PR middle-end/50873
        * optabs.c (maybe_legitimize_operand_same_code): Use copy_to_mode_reg
        instead of force_reg.  Do nothing if the address is already a
        non-virtual pseudo register.

2011-12-12  Torvald Riegel  <triegel@redhat.com>

        * gimplify.c (voidify_wrapper_expr): Add default handling for
        outermost wrapper.

2011-12-12  Torvald Riegel  <triegel@redhat.com>

        * tree-ssa-tail-merge.c (gimple_equal_p): Don't treat transaction
        commits as equal.

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

        * config/darwin-sections.def (zobj_const_data_section): Fix over-
        length section name.

2011-12-11  Richard Henderson  <rth@redhat.com>

        * config/rs6000/rs6000.c (rs6000_expand_interleave): Use
        BYTES_BIG_ENDIAN, not TARGET_BIG_ENDIAN.

2011-12-11  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51485
        * tree-vect-data-refs.c (vect_analyze_data_refs): Give up on
        DRs in call stmts.

2011-12-11  Patrick Marlier  <patrick.marlier@gmail.com>

        * trans-mem.c (ipa_tm_transform_calls_redirect): Do not remove edge.

2011-12-10  Richard Henderson  <rth@redhat.com>

        * config/rs6000/altivec.md (altivec_vmrghb): Rewrite pattern as
        vec_select + vec_concat.
        (altivec_vmrghh, altivec_vmrghw, altivec_vmrghsf, altivec_vmrglb,
        altivec_vmrglh, altivec_vmrglw, altivec_vmrglsf): Likewise.
        (vec_perm_constv16qi): New.
        (vec_extract_evenv4si, vec_extract_evenv4sf, vpkuhum_nomode,
        vpkuwum_nomode, vec_extract_oddv8hi, vec_extract_oddv16qi,
        vec_interleave_high<VI>, vec_interleave_low<VI>): Remove.
        * config/rs6000/paired.md (paired_merge00): Rewrite pattern as
        vec_select + vec_concat.
        (paired_merge10, paired_merge01, paired_merge11): Likewise.
        (vec_perm_constv2sf): New.
        (vec_interleave_highv2sf, vec_interleave_lowv2sf,
        vec_extract_evenv2sf, vec_extract_oddv2sf): Remove.
        * config/rs6000/spe.md (spe_evmergehi): Rewrite pattern as
        vec_select + vec_concat.
        (spe_evmergehilo, spe_evmergelo, spe_evmergelohi): New.
        (vec_perm_constv2si): New.
        * config/rs6000/vector.md (vec_interleave_highv4sf,
        vec_interleave_lowv4sf, vec_interleave_high<VEC_64>,
        vec_interleave_low<VEC_64>): Remove.
        * config/rs6000/vsx.md (VS_double): New mode attribute.
        (UNSPEC_VSX_XXPERMDI): Remove.
        (vsx_xxpermdi_<VSX_L>_1): Rewrite pattern as vec_select + vec_concat.
        (vsx_xxmrghw_<VSX_W>, vsx_xxmrglw_<VSX_W>): Likewise.
        (vsx_xxpermdi_<VSX_L>): Change to expander.
        (vec_perm_const<VSX_D>): New.
        (vsx_mergel_<VSX_D>, vsx_mergeh_<VSX_D>): New.
        * config/rs6000/predicates.md (const_0_to_1_operand): New.
        (const_2_to_3_operand): New.
        * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): New.
        (altivec_expand_vec_perm_const): New.
        (rs6000_expand_vec_perm_const_1, rs6000_expand_vec_perm_const): New.
        (rs6000_vectorize_vec_perm_const_ok): New.
        (rs6000_do_expand_vec_perm): New.
        (rs6000_expand_extract_even, rs6000_expand_interleave): New.
        * config/rs6000/rs6000-builtin.def (VEC_MERGE*): Update rtx codes.
        * config/rs6000/rs6000-modes.def: Add double-wide vector modes.
        * config/rs6000/rs6000-protos.h: Update.

2011-12-10  Richard Henderson  <rth@redhat.com>

        * expr.c (expand_expr_real_2) [VEC_PERM_EXPR]: Avoid passing a
        CONST_INT to expand_vec_perm as the selector.
        * optabs.c (expand_vec_perm): Assert the selector is of a proper mode.

2011-12-10  Richard Henderson  <rth@redhat.com>

        * genmodes.c (struct mode_data): Remove wider_2x member.
        (blank_mode): Adjust initializer.
        (calc_wider_mode): Use XALLOCAVEC.
        (emit_move_wider): Select double-width same-element vectors for
        2xwider vectors.
        * machmode.h (GET_MODE_2XWIDER_MODE): Update documentation.
        * config/i386/i386.c (doublesize_vector_mode): Remove.
        (expand_vselect_vconcat): Use GET_MODE_2XWIDER_MODE instead.

2011-12-10  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.h (USE_LOAD_POST_INCREMENT): Define.
        (USE_LOAD_POST_DECREMENT, USE_STORE_POST_INCREMENT): Likewise.
        (USE_STORE_POST_DECREMENT): Likewise.

        * config/epiphany/epiphany.h (EPIPHANY_RETURN_REGNO): New macro,
        broken out of ..
        (INCOMING_RETURN_ADDR_RTX) .. this.  Use EPIPHANY_RETURN_REGNO.
        (DWARF_FRAME_RETURN_COLUMN): New macro.

        * config/epiphany/epiphany-protos.h (epiphany_start_function): Declare.
        * config/epiphany/epiphany.c (epiphany_handle_interrupt_attribute):
        Split "timer" value into "timer0" and "timer1".
        Handle page_miss, message and wand.  Don't handle static_flag.
        Adjust warning text.
        (epiphany_start_function): New function.
        (epiphany_compute_function_type): Split "timer" value into "timer0"
        and "timer1".  Handle page_miss, message and wand.
        Don't handle static_flag.
        (epiphany_expand_epilogue): Don't use frame_insn for status / iret
        restore.
        * config/epiphany/epiphany.h: ASM_DECLARE_FUNCTION_NAME: Define.
        (enum epiphany_function_type):
        Split EPIPHANY_FUNCTION_TIMER value into EPIPHANY_FUNCTION_TIMER0
        and EPIPHANY_FUNCTION_TIMER1.
        Remove EPIPHANY_FUNCTION_ILINK1 and EPIPHANY_FUNCTION_ILINK2 values.
        Add EPIPHANY_FUNCTION_PAGE_MISS and EPIPHANY_FUNCTION_MESSAGE values.
        Rename EPIPHANY_FUNCTION_STATIC_FLAG to EPIPHANY_FUNCTION_WAND.

2011-12-10  Nathan Sidwell  <nathan@acm.org>

        PR gcov-profile/51449
        * coverage.c (coverage_end_function): Always process the coverage
        variables.

2011-12-09  Aldy Hernandez  <aldyh@redhat.com>

        PR/51291
        * tree.c (build_common_builtin_nodes): Do not use TM_PURE
        attribute unless language has support for TM.
        * config/i386/i386.c (ix86_init_tm_builtins): Exit gracefully in
        the absence of TM builtins.

2011-12-09  Eric Botcazou  <ebotcazou@adacore.com>

        * gimple-fold.c (gimple_fold_stmt_to_constant_1) <GIMPLE_UNARY_RHS>:
        Also check the TYPE_MODE to recognize useless pointer conversions.

2011-12-09  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51117
        * tree-eh.c (optimize_clobbers): Don't remove just one
        clobber, but all consecutive clobbers before RESX.
        Use gimple_clobber_p predicate.

2011-12-09  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (altivec_expand_builtin): Call
        expand_call to return a valid funciton instead of return
        cosnt0_rtx/NULL_RTX if there was an error with the builtin.
        (altivec_expand_ld_builtin): Ditto.
        (rs6000_inner_target_options): If VSX is selected as a target
        attribute or pragma, enable ALTIVEC also.
        (rs6000_pragma_target_parse): Call rs6000_option_override_internal
        to do all of the standard processing when switching options,
        including redefining appropriate macros.

        PR rtl-optimization/51469
        * varasm.c (default_binds_local_p_1): If the symbol is a gnu
        indirect function, mark the symbol as non-local.

2011-12-09  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/51479
        * Makefile.in (errors.o): Restored.

2011-12-09  Richard Guenther  <rguenther@suse.de>

        PR lto/48042
        * tree.c (free_lang_data_in_decl): Remove freeing conditional
        on debuginfo level.

2011-12-09  Joern Rennecke  <joern.rennecke@embecosm.com>

        PR middle-end/40154
        * emit-rtl.c (set_dst_reg_note): New function.
        * rtl.h (set_dst_reg_note): Declare.
        * optabs.c (expand_binop, expand_absneg_bit): Use set_dst_reg_note.
        (emit_libcall_block, expand_fix): Likewise.
        * function.c (assign_parm_setup_reg, expand_function_start): Likewise.
        * expmed.c (expand_mult_const, expand_divmod): Likewise.
        * reload1.c (gen_reload): Likewise.

        * dse.c (get_stored_val, get_call_args): Use gen_int_mode.
        * expmed.c (expand_divmod): Likewise.
        * combine.c (simplify_if_then_else): Likewise.

2011-12-09  Kai Tietz  <ktietz@redhat.com>

        * ira-color.c (print_hard_regs_subforest): Use
        HOST_WIDEST_INT_PRINT_DEC instead of %lld.
        (allocno_hard_regs): Change type of cost member to HOST_WIDEST_INT.
        (add_allocno_hard_regs): Change type of argument cost
        to HOST_WIDEST_INT.
        * ira-conflict.c (build_conflict_bit_table): Replace use
        of long-long by HOST_WIDEST_INT.

2011-12-09  Georg-Johann Lay  <avr@gjlay.de>

        PR target/51425
        * config/avr/avr.md (config/avr/avr.md, *sbix_branch_tmp): Use
        zero_extract:QIHI instead of zero_extract:HI.

2011-12-09  Jakub Jelinek  <jakub@redhat.com>
            Andrew Pinski  <apinski@cavium.com>

        PR tree-optimization/51117
        * tree-eh.c (optimize_clobbers): New function.
        (execute_lower_eh_dispatch): Call it.

2011-12-09  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51482
        * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size):
        Make sure to only create REAL_TYPE and INTEGER_TYPE component vectors.

2011-12-09  Kai Tietz  <ktietz@redhat.com>

        * implicit-zee.c (num_realized): Change type to long.
        (num_ze_opportunities): Likewise.

2011-12-08  Andrew Pinski  <apinski@cavium.com>

        * config/mips/mips-cpus.def (octeon+): New CPU.
        * config/mips/mips-tables.opt: Regenerate.
        * config/mips/mips.h (MIPS_CPP_SET_PROCESSOR): Emit '+' as 'P'.

2011-12-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        PR middle-end/39976
        * tree-ssa-dom.c (enum expr_kind): Add EXPR_PHI.
        (struct hashable_expr): Add struct phi field.
        (initialize_hash_element): Handle phis; change to use XCNEWVEC.
        (hashable_expr_equal_p): Handle phis.
        (iterative_hash_hashable_expr): Likewise.
        (print_expr_hash_elt): Likewise.
        (free_expr_hash_elt): Likewise.
        (dom_opt_enter_block): Create equivalences from redundant phis.
        (eliminate_redundant_computations): Handle redundant phis.
        (lookup_avail_expr): Handle phis.

2011-12-08  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51466
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Also copy
        TREE_SIDE_EFFECTS.

2011-12-08  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-operands.c (add_stmt_operand): Do not mark stmts
        volatile when processing operands of an ADDR_EXPR.
        (get_indirect_ref_operands): Likewise.
        (get_tmr_operands): Likewise.
        (get_expr_operands): Likewise.

2011-12-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR target/50395
        * config/s390/s390.c (s390_mainpool_finish): Emit the jump over
        the literal pool as jump insn.

2011-12-08  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/49772
        * tree-inline.c (optimize_inline_calls): Remove bail out on errors.

2011-12-08  Richard Guenther  <rguenther@suse.de>

        PR lto/50747
        * lto-streamer-out.c (produce_symtab): Remove asserts.

2011-12-08  Richard Guenther  <rguenther@suse.de>

        PR lto/49945
        * lto-streamer-out.c (tree_is_indexable): Localize variably
        modified types and their FIELD_DECLs.

2011-12-08  Eric Botcazou  <ebotcazou@adacore.com>

        PR tree-optimization/51315
        * tree.h (get_object_or_type_alignment): Declare.
        * expr.c (get_object_or_type_alignment): Move to...
        * builtins.c (get_object_or_type_alignment): ...here.  Add assertion.
        * tree-sra.c (tree_non_mode_aligned_mem_p): Rename to...
        (tree_non_aligned_mem_p): ...this.  Add ALIGN parameter.  Look into
        MEM_REFs and use get_object_or_type_alignment for them.
        (build_accesses_from_assign): Adjust for above change.
        (access_precludes_ipa_sra_p): Likewise.

2011-12-08  Richard Guenther  <rguenther@suse.de>

        PR lto/48437
        * lto-streamer-out.c (tree_is_indexable): Exclude block-local
        extern declarations.

2011-12-07  Andrew Pinski  <apinski@cavium.com>

        PR middle-end/45416
        * expr.c (do_store_flag): Rewrite code that looks for BIT_AND_EXPR for
        SSA-expand.

2011-12-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50823
        * ipa-inline.c (edge_badness): Do not account for the number of
        remaining calls.

2011-12-07  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/50744
        * ipa-cp.c (good_cloning_opportunity_p): Assert size_cost is positive,
        compute evaluation in HOST_WIDEST_INT.
        (safe_add): New function
        (propagate_effects): Use safe_add to accumulate effects.

2011-12-06  Joel Sherrill <joel.sherrill@oarcorp.com>

        * config/rs6000/rtems.h: Switch to using global_options_set
        in SUBSUBTARGET_OVERRIDE_OPTIONS.

2011-12-06  David S. Miller  <davem@davemloft.net>

        * config/sparc/visintrin.h: Add appropriate __VIS__ cpp protection.

2011-12-06  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_file_start): Fix missing ,

2011-12-06  Jakub Jelinek  <jakub@redhat.com>

        PR target/51354
        * config/i386/i386.c (ix86_emit_leave): Call ix86_add_cfa_restore_note
        unconditionally.

2011-12-06  Georg-Johann Lay  <avr@gjlay.de>

        Forward-port from gcc-4_6-branch r181936 2011-12-02.
        * config/avr/avr-mcus.def (avr_mcu_types): ATtiny4313 and
        AT86RF401 have a 16-bit SP (their manual is bogus).

2011-12-06  Georg-Johann Lay  <avr@gjlay.de>

        Forward-port from gcc-4_6-branch r181936 2011-12-02.

        PR target/51002
        * config/avr/avr.md (movhi_sp_r): Set insn condition to
        !AVR_HAVE_8BIT_SP.
        * config/avr/avr.c (output_movhi): Use "clr%B0" instead of "in
        %B0,__SP_H__" if AVR_HAVE_8BIT_SP.
        (avr_file_start): Only print "__SP_H__ = 0x3e" if !AVR_HAVE_8BIT_SP.

2011-12-06  Georg-Johann Lay  <avr@gjlay.de>

        PR target/51409
        PR target/49868
        * config/avr/avr.h (ADDR_SPACE_PGM, ADDR_SPACE_PGM1,
        ADDR_SPACE_PGM2, ADDR_SPACE_PGM3, ADDR_SPACE_PGM4,
        ADDR_SPACE_PGM5, ADDR_SPACE_PGMX): Write as enum.
        (avr_addrspace_t): New typedef.
        (avr_addrspace): New declaration.
        * config/avr/avr-c.c (avr_toupper): New static function.
        (avr_register_target_pragmas, avr_cpu_cpp_builtins): Use
        avr_addrspace to get address space information.
        * config/avr/avr.c (avr_addrspace): New variable.
        (avr_out_lpm, avr_pgm_check_var_decl, avr_insert_attributes,
        avr_asm_named_section, avr_section_type_flags,
        avr_asm_select_section, avr_addr_space_address_mode,
        avr_addr_space_convert, avr_emit_movmemhi): Use it.
        (avr_addr_space_pointer_mode): Forward to avr_addr_space_address_mode.
        (avr_pgm_segment): Remove.

2011-12-06  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50601
        * varasm.c (assemble_alias): Move DECL_EXTERNAL implementation
        quirk adjustjment ...
        * passes.c (rest_of_decl_compilation): ... here.

2011-12-06  Richard Guenther  <rguenther@suse.de>

        PR middle-end/51436
        * gimple-fold.c (gimplify_and_update_call_from_tree): Guard vdef check
        for the fact we do not have virtual operands when not optimizing.

2011-12-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51245
        * tree-ssa-sccvn.c (vn_reference_lookup_or_insert_constant_for_pieces):
        New function.
        (vn_reference_lookup_3): Use it.  Properly valueize all refs we create.

2011-12-06  Iain Sandoe  <iains@gcc.gnu.org>

        * config/rs6000/rs6000.c (darwin_rs6000_override_options): Initialize
        rs6000_current_abi.

2011-12-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/51363
        * gimple.c (gimple_rhs_has_side_effects): Remove.
        * gimple.h (gimple_rhs_has_side_effects): Likewise.
        * tree-ssa-dom.c (optimize_stmt): Simplify conditional.

2011-12-06  Alan Modra  <amodra@gmail.com>

        PR target/50906
        * config/rs6000/rs6000.c (rs6000_emit_prologue <TARGET_SPE_ABI>):
        Do not mark r11 setup as frame-related.  Pass correct offset to
        rs6000_emit_savres_rtx.  Correct out-of-line rs6000_frame_related
        arguments.  Correct sp_offset.  Remove "offset" fudge from
        in-line rs6000_frame_related call.  Rename misleading variable.
        Fix comments and whitespace.  Tidy some expressions.
        (rs6000_emit_epilogue <TARGET_SPE_ABI>): Always set frame_reg_rtx
        to r11 in out-of-line case.  Correct sp_offset.  Pass correct
        offset to rs6000_emit_savres_rtx.  Rename misleading variable.
        Fix comments and whitespace.  Tidy some expressions.
        (rs6000_emit_epilogue <non-TARGET_SPE_ABI>): Add sp_offset
        adjustment when !saving_GPRs_inline.  Correct register mode
        used in address calcs.
        (rs6000_emit_epilogue <non-TARGET_SPE_ABI>): Similarly when
        !restoring_GPRs_inline.

2011-12-06  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * config/arm/vfp.md (*combine_vcvt_f64_<FCVTI32typename>): Fix
        formatting character for vmov.f64 case.

2011-12-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51396
        * tree-ssa-math-opts.c (convert_mult_to_fma): Don't optimize
        if MUL_RESULT has zero uses.

        PR debug/51410
        * c-decl.c (pop_scope): Don't add DECL_EXTERNAL decls
        for debug info if scope is file_scope.

        PR c/51339
        * c-decl.c (c_finish_incomplete_decl, finish_decl): Call
        relayout_decl instead of layout_decl.

2011-12-05  Richard Sandiford  <rdsandiford@googlemail.com>

        * resource.c (init_resource_info): Only consider EXIT_IGNORE_STACK
        if there is in epilogue.

2011-12-05  Richard Sandiford  <rdsandiford@googlemail.com>

        * optabs.c (maybe_emit_sync_lock_test_and_set): Pass a null target
        to emit_library_call_value.
        (expand_atomic_compare_and_swap): Likewise.

2011-12-05  Vladimir Makarov  <vmakarov@redhat.com>

        PR other/50775
        * ira-int.h (struct ira_object): Remove add_data.
        (OBJECT_ADD_DATA): Remove.

        * ira-build.c (ira_create_object): Remove OBJECT_ADD_DATA
        initialization.

        * ira-color.c (object_hard_regs_t, object_hard_regs): Rename to
        allocno_hard_regs_t, allocno_hard_regs.
        (object_hard_regs_node_t, object_hard_regs_node): Rename to
        allocno_hard_regs_node_t and allocno_hard_regs_node.
        (struct allocno_color_data): Add new member last_process.  Move
        profitable_hard_regs, hard_regs_node, and hard_regs_subnodes_start
        from object_color_data.
        (object_color_data_t, object_color_data, OBJECT_COLOR_DATA): Remove.
        (curr_allocno_process): New static variable.
        (object_hard_regs_eq, object_hard_regs_htab): Rename to
        allocno_hard_regs_eq and allocno_hard_regs_htab.
        (init_object_hard_regs, finish_object_hard_regs): Rename to
        init_allocno_hard_regs and finish_allocno_hard_regs.
        (object_hard_regs_compare, object_hard_regs_node_t): Rename to
        allocno_hard_regs_compare and allocno_hard_regs_node_t.
        (create_new_object_hard_regs_node): Rename to
        create_new_allocno_hard_regs_node.
        (add_new_object_hard_regs_node_to_forest): Rename to
        add_new_allocno_hard_regs_node_to_forest.
        (add_object_hard_regs_to_forest, collect_object_hard_regs_cover):
        Rename to add_allocno_hard_regs_to_forest and
        collect_allocno_hard_regs_cover.
        (setup_object_hard_regs_nodes_parent): Rename to
        setup_allocno_hard_regs_nodes_parent.
        (remove_unused_object_hard_regs_nodes): Rename to
        remove_unused_allocno_hard_regs_nodes.
        (enumerate_object_hard_regs_nodes, object_hard_regs_nodes_num):
        Rename to enumerate_allocno_hard_regs_nodes and
        allocno_hard_regs_nodes_num.
        (object_hard_regs_nodes, object_hard_regs_subnode_t): Rename to
        allocno_hard_regs_nodes and allocno_hard_regs_subnode_t.
        (object_hard_regs_subnode, object_hard_regs_subnodes): Rename to
        allocno_hard_regs_subnode and allocno_hard_regs_subnodes.
        (object_hard_regs_subnode_index): Rename to
        allocno_hard_regs_subnode_index.
        (setup_object_hard_regs_subnode_index): Rename to
        setup_allocno_hard_regs_subnode_index.
        (get_object_hard_regs_subnodes_num): Rename to
        get_allocno_hard_regs_subnodes_num.
        (form_object_hard_regs_nodes_forest): Rename to
        form_allocno_hard_regs_nodes_forest.
        (finish_object_hard_regs_nodes_tree): Rename to
        form_allocno_hard_regs_nodes_forest
        (finish_object_hard_regs_nodes_forest): Rename to
        finish_allocno_hard_regs_nodes_forest.
        (setup_left_conflict_sizes_p): Use allocno data instead of object ones.
        Process conflict allocnos once.
        (update_left_conflict_sizes_p): Use allocno data instead of object
        ones.  Change prototype signature.
        (empty_profitable_hard_regs): Use allocno data instead of object ones.
        (setup_profitable_hard_regs): Ditto.
        (get_conflict_profitable_regs): Rename to
        get_conflict_and_start_profitable_regs.  Use allocno data for
        profitable regs calculation.
        (check_hard_reg_p): Change prototype signature.  Check profitable
        regs for allocno not the objects.
        (assign_hard_reg): Process conflict allocnos only once for
        updating conflict costs.
        (setup_allocno_available_regs_num): Use allocno data instead of
        object ones.  Modify debug output.
        (color_pass): Remove initialization and finalization of object
        color data.

2011-12-05  Kazu Hirata  <kazu@codesourcery.com>

        PR target/51408
        * config/arm/arm.md (*minmax_arithsi): Always require the else
        clause in the MINUS case.

2011-12-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50904
        * tree-ssa-loop-im.c (struct mem_ref): Remove vops member.
        (MEM_ANALYZABLE): New.
        (memory_references): Remove clobbered_vops and vop_ref_map
        members, add all_refs_stored_in_loop member.
        (memref_free): Adjust.
        (mem_ref_alloc): Likewise.
        (gather_mem_refs_stmt): Do not record clobbers, instead
        record refs for unanalyzable stmts.
        (gather_mem_refs_in_loops): Do not propagate clobbers.
        (struct vop_to_refs_elt, vtoe_hash, vtoe_eq, vtoe_free,
        record_vop_access, get_vop_accesses, get_vop_stores,
        add_vop_ref_mapping): Remove.
        (create_vop_ref_mapping_loop): Adjust to simply record all stores.
        (analyze_memory_references): Adjust.
        (refs_independent_p): Check for not analyzable refs.
        (can_sm_ref_p): Likewise.
        (ref_indep_loop_p_1): Simplify.
        (tree_ssa_lim_finalize): Adjust.

        * tree-ssa-loop-im.c (stmt_cost): Simplify, use LIM_EXPENSIVE
        rather than magic constants.  Assign zero cost to PAREN_EXPR
        and SSA_NAME copies.  Assign cost proportional to the vector
        size for vector constructors.

2011-12-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.h (struct ao_ref_s): Add volatile_p field.
        * tree-ssa-alias.c (ao_ref_init): Initialize it.
        (ao_ref_init_from_ptr_and_size): Likewise.
        (refs_may_alias_p_1): Two volatile accesses conflict.
        (ref_maybe_used_by_call_p_1): Likewise.
        (call_may_clobber_ref_p_1): Likewise.
        * tree-ssa-sccvn.c (ao_ref_init_from_vn_reference): Initialize
        volatile_p field.

2011-12-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa.c (verify_ssa): Verify SSA names in the loop over all SSA
        names.  Remove SSA operand checking, call verify_ssa_operands.
        * tree-ssa-operands.h (verify_ssa_operands): Declare.
        * tree-ssa-operands.c (verify_ssa_operands): New function.

2011-12-05  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        * config/arm/arm.c (vfp3_const_double_for_fract_bits): Define.
        * config/arm/arm-protos.h (vfp3_const_double_for_fract_bits): Declare.
        * config/arm/constraints.md ("Dt"): New constraint.
        * config/arm/predicates.md
        (const_double_vcvt_power_of_two_reciprocal): New.
        * config/arm/vfp.md (FCVTI32typename): New.
        (FCVT): New iterator.
        (*combine_vcvt_f32_<FCVTI32typename>): New.
        (*combine_vcvt_f64_<FCVTI32typename>): New.

2011-12-05  Richard Guenther  <rguenther@suse.de>

        * cgraph.c (cgraph_create_edge_1): Initialize
        call_stmt_cannot_inline_p from the stmt if possible.
        (cgraph_make_edge_direct): Likewise.
        * gimple-streamer-in.c (input_gimple_stmt): Do not
        call gimple_call_set_cannot_inline.
        * gimple.h (enum gf_mask): Remove GF_CALL_CANNOT_INLINE, shift values.
        (gimple_call_set_cannot_inline): Remove.
        (gimple_call_cannot_inline_p): Likewise.
        * ipa-inline-analysis.c (initialize_inline_failed): Look
        at the edge call_stmt_cannot_inline_p flag.
        * ipa-inline.c (can_inline_edge_p): Likewise.
        (early_inliner): Only update the edge flag.
        * ipa-prop.c (update_indirect_edges_after_inlining): Likewise.
        (ipa_modify_call_arguments): Do not call gimple_call_set_cannot_inline.
        * cgraphunit.c (assemble_thunk): Likewise.
        * gimple-fold.c (gimple_fold_call): Likewise.

        * tree.h (CALL_CANNOT_INLINE_P): Remove.
        * tree-mudflap.c (mf_xform_statements): Do not modify alloca calls.
        * builtins.c (expand_builtin_alloca): With -fmudflap do not expand
        alloca calls inline.
        * cfgexpand.c (expand_call_stmt): Do not set CALL_CANNOT_INLINE_P.
        * gimple.c (gimple_build_call_from_tree): Do not read
        CALL_CANNOT_INLINE_P.
        * gimplify.c (gimplify_call_expr): Do not copy CALL_CANNOT_INLINE_P.

2011-12-05  Jakub Jelinek  <jakub@redhat.com>
            Eric Botcazou  <ebotcazou@adacore.com>

        PR middle-end/51323
        PR middle-end/50074
        * calls.c (internal_arg_pointer_exp_state): New variable.
        (internal_arg_pointer_based_exp_1,
        internal_arg_pointer_exp_scan): New functions.
        (internal_arg_pointer_based_exp): New function.
        (mem_overlaps_already_clobbered_arg_p): Use it.
        (expand_call): Free internal_arg_pointer_exp_state.cache vector
        and clear internal_arg_pointer_exp_state.scan_start.

2011-12-04  Kaz Kojima  <kkojima@gcc.gnu.org>

        * config/sh/linux.h (TARGET_DEFAULT): Add MASK_SOFT_ATOMIC.
        * config/sh/sync.md: New file.
        * config/sh/sh.md: Include sync.md.
        * config/sh/sh.opt (msoft-atomic): New option.
        * doc/invoke.texi (SH Options): Document it.

2011-12-04  Nathan Sidwell  <nathan@acm.org>

        * gcov-io.h (struct gcov_info): Replace trailing array with
        pointer to array.
        * profile.c (branch_prob): Only call renamed
        coverage_begin_function once.
        * coverage.h (coverage_begin_output): Rename to ...
        (coverage_begin_function): ... here.
        * coverage.c (struct function_list): Rename to ...
        (struct coverage_data): ... this.  Update all uses.
        (gcov_info_var, gcov_fn_info_type, gcov_fn_info_ptr_type): New globals.
        (bbg_file_opened, bbg_function_announced): Remove.
        (get_coverage_counts): Adjust message.
        (coverage_begin_ouput): Rename to ...
        (coverage_begin_function): ... here.  Move file opening to
        coverage_init.  Adjust for being called only once.
        (coverage_end_function): Remove bbg file and inhibit further
        output here on error.
        (build_info_type): Adjust for change to pointer to array.
        (build_info): Receive array of function pointers and adjust.
        (create_coverage): Break into ...
        (coverage_obj_init, coverage_obj_fn, coverage_obj_finish):
        ... these, and adjust.
        (coverage_init): Open the notes file here.  Tidy.
        (coverage_finish): Call coverage_obj_init etc.

2011-12-04  Ira Rosen  <ira.rosen@linaro.org>

        PR middle-end/51285
        * tree-vect-loop.c (vect_create_epilog_for_reduction): Create exit
        phi nodes for outer loop in case of double reduction.

2011-12-04  Jérémie Detrey  <Jeremie.Detrey@loria.fr>

        PR target/51393
        * config/i386/avxintrin.h (_mm256_insert_epi64): Declare second
        parameter as long long.

2011-12-04  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/51351
        * optabs.c (init_sync_libfuncs): Use "or" rather than "ior"
        in the external names.

2011-12-03  Jack Howarth <howarth@bromo.med.uc.edu>

        * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Pass -no_pie for
        non-PIC code when targeting 10.7 or later.

2011-12-03  Iain Sandoe  <iains@gcc.gnu.org>

        * config/darwin.h (STARTFILE_SPEC): Do not use -lbundle1.o when
        Darwin >= 10.
        (DARWIN_DYLIB1_SPEC): Do not use -ldylib1.10.5.o when Darwin >= 10.
        (DARWIN_CRT1_SPEC): Use -lcrt1.10.6.o when Darwin >= 10.

2011-12-03  Jakub Jelinek  <jakub@redhat.com>

        * fold-const.c (fold_unary_loc): Fold VEC_UNPACK_LO_EXPR,
        VEC_UNPACK_HI_EXPR, VEC_UNPACK_FLOAT_LO_EXPR and
        VEC_UNPACK_FLOAT_HI_EXPR with VECTOR_CST argument.
        (fold_binary_loc): Fold VEC_PACK_TRUNC_EXPR,
        VEC_PACK_FIX_TRUNC_EXPR, VEC_WIDEN_MULT_LO_EXPR
        and VEC_WIDEN_MULT_HI_EXPR with VECTOR_CST arguments.

        PR debug/50317
        * tree-ssa.c (target_for_debug_bind): Also allow is_gimple_reg_type
        vars that aren't referenced.
        (tree-ssa-live.c (remove_unused_locals): Don't clear TREE_ADDRESSABLE
        of unreferenced local vars.
        * cfgexpand.c (expand_debug_expr): For DEBUG_IMPLICIT_PTR allow also
        TREE_ADDRESSABLE vars that satisfy target_for_debug_bind.

2011-12-03  Anatoly Sokolov  <aesok@post.ru>

        * config/arm/arm.h (LIBCALL_VALUE, FUNCTION_VALUE_REGNO_P): Remove.
        * config/arm/arm-protos.h (aapcs_libcall_value): Remove.
        * config/arm/arm.c (TARGET_FUNCTION_VALUE_REGNO_P): Define.
        (arm_libcall_value_1, arm_function_value_regno_p): New function.
        (arm_function_value, arm_libcall_value): Use arm_libcall_value_1.
        (aapcs_libcall_value): Make static.
        (arm_libcall_value): Add static qualifier.

2011-12-02  Jakub Jelinek  <jakub@redhat.com>

        PR target/51387
        * config/i386/sse.md (mul<mode>3 with VI1_AVX2 iterator): For
        V32QImode use { 0,2,..,14,32,34,..,46,16,18,..,30,48,50,..,62 }
        permutation instead of extract even permutation.

2011-12-02  Nathan Sidwell  <nathan@acm.org>

        * gcov.c (struct arc_info): Add is_throw field.
        (struct (block_info): Add exceptional field, reduce flags size to
        account for it.
        (struct function_info): Add has_catch field.
        (struct line_info): Add unexceptional field.
        (process_file): Call find_exception_blocks if necessary.
        (read_graph_file): Adjust.  Note if an exceptional edge is seen.
        (find_exception_blocks): New.
        (add_line_counts): Set line's unexceptional flag if not exceptional.
        (output_branch_count): Note exceptional arcs, lines and blocks.
        * gcov-dump.c (tag_arcs): Decode arc flags.
        * doc/gcov.texi: Document '=====' lines.

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

        * config/ia64/ia64.h (PRINT_OPERAND, PRINT_OPERAND_ADDRESS,
        PRINT_OPERAND_PUNCT_VALID_P): Remove macros.
        * config/ia64/ia64-protos.h (ia64_print_operand,
        ia64_print_operand_address): Remove.
        * config/ia64/ia64.c (TARGET_PRINT_OPERAND,
        TARGET_PRINT_OPERAND_ADDRESS, TARGET_PRINT_OPERAND_PUNCT_VALID_P):
        Define.
        (ia64_print_operand_punct_valid_p): New function.
        (ia64_print_operand, ia64_print_operand_address): Make static.

2011-12-02  Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/51390
        * config/rs6000/rs6000.c (def_builtin): Use the correct field to
        figure out the function's attributes.
        (struct builtin_description): Mark mask field as const since we no
        longer need to modify it for SPE and PAIRED builtins.

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

        Revert:

        2008-09-18  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR rtl-opt/37451
        * loop-doloop.c (doloop_modify): New argument zero_extend_p and
        zero extend count after the correction to it is done.
        (doloop_optimize): Update call to doloop_modify, don't zero extend
        count before call.

        2008-11-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR rtl-opt/37782
        * loop-doloop.c (doloop_modify): Add from_mode argument that says what
        mode count is in.
        (doloop_optimize): Update call to doloop_modify.

2011-12-02  Richard Guenther  <rguenther@suse.de>

        PR lto/47259
        * ipa.c (varpool_externally_visible_p): Register variables
        are always externally visible.

2011-12-02  Sameera Deshpande  <sameera.deshpande@arm.com>

        * gimple-pretty-print.c (dump_gimple_call): Dereference fn only if
          non-NULL.

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

        PR tree-optimization/50622
        * tree-sra.c (load_assign_lhs_subreplacements): Force gimple operand
        if both lacc and racc are grp_partial_lhs.

2011-12-01  Kaz Kojima  <kkojima@gcc.gnu.org>

        PR target/50814.
        * config/sh/sh.c (expand_ashiftrt): Handle TARGET_SH2A same as
        TARGET_SH3.
        (shl_sext_kind): Likewise.
        * config/sh/sh.h (SH_DYNAMIC_SHIFT_COST): Likewise.
        * config/sh/sh.md (ashlsi3_sh2a, ashrsi3_sh2a, lshrsi3_sh2a): Remove.
        (ashlsi3_std): Handle TARGET_SH2A same as TARGET_SH3.
        (ashlsi3): Likewise.
        (ashrsi3_d): Likewise.
        (lshrsi3_d): Likewise.
        (lshrsi3): Likewise.

2011-12-01  Diego Novillo  <dnovillo@google.com>

        PR bootstrap/51346
        * ipa-inline.c (can_inline_edge_p): If the edge E has a statement,
        use the statement's inline indicator instead of E's.
        Remove consistency check.

2011-12-01  Diego Novillo  <dnovillo@google.com>

        PR bootstrap/51346
        Revert

        2011-11-29  Diego Novillo  <dnovillo@google.com>

        * gimple.c (gimple_call_set_cannot_inline): Move from gimple.h.
        Update field call_stmt_cannot_inline_p from call
        graph edge, if needed.
        * gimple.h (gimple_call_set_cannot_inline): Move to gimple.c.

2011-12-01  Nathan Sidwell  <nathan@acm.org>

        PR gcov-profile/51113
        * coverage.c (build_var): Keep coverage variables static.

2011-12-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51356
        * tree-vect-patterns.c (vect_recog_bool_pattern): Give up if
        vectype doesn't have VECTOR_MODE_P.

        PR debug/50317
        * tree-ssa-dce.c (remove_dead_stmt): Add a debug stmt when removing
        as unnecessary a store to a variable with gimple reg type.
        * tree-ssa-live.c (remove_unused_locals): Clear TREE_ADDRESSABLE bit
        on local unreferenced variables.
        * cfgexpand.c (expand_gimple_basic_block): Don't emit DEBUG_INSNs
        for !target_for_debug_bind variables.

2011-12-01  Patrick Marlier  <patrick.marlier@gmail.com>

        PR middle-end/51273
        * cgraph.h (cgraph_call_node_duplication_hooks): Declare.
        * cgraph.c (cgraph_call_node_duplication_hooks): Make global.
        * cgraphunit.c (cgraph_copy_node_for_versioning): Call it.

2011-12-01  Andrew Pinski  <apinski@cavium.com>

        PR lto/51198
        * tree.c (free_lang_data_in_decl): Clear FIELD_DECL's
        DECL_INITIAL also.

2011-12-01  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51246
        * tree-predcom.c (replace_ref_with): Handle also clobber on the rhs.

        PR rtl-optimization/51014
        * loop-unroll.c (apply_opt_in_copies): Ignore label DEBUG_INSNs
        both from bb and orig_bb.

2011-12-01  Joern Rennecke  <joern.rennecke@embecosm.com>

        PR tree-optimization/50802
        * tree-vrp.c (simplify_conversion_using_ranges): Rewrite test
        considering what happens to ranges during sign changes and/or
        intermediate narrowing conversions.

2011-11-30  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        PR middle-end/50283
        * config/pa/pa.md (in_branch_delay): Disallow frame related insns.
        (in_nullified_branch_delay): Likewise.
        (in_call_delay): Likewise.

2011-11-30  Richard Henderson  <rth@redhat.com>

        * predict.c (expr_expected_value_1): Assume compare-and-swap builtin
        boolean return is true.

2011-11-30  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/51044
        * dse.c (emit_inc_dec_insn_before): Ensure new_insn is an instruction
        rather than just insn body.

        PR target/50725
        * function.c (thread_prologue_and_epilogue_insns): If
        stack_realign_drap, add drap_reg to SET_UP_BY_PROLOGUE
        regset.

        PR middle-end/51089
        * tree-eh.c (cleanup_empty_eh_merge_phis): Add check to
        avoid creating duplicate edges here.
        (cleanup_empty_eh_unsplit): And remove it in the caller.

2011-11-30  Andrew Pinski  <apinski@cavium.com>

        PR c/51321
        * c-parser.c (c_parser_postfix_expression): Check groktypename results
        before looking at the main variant.

2011-11-30  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/48721
        * sched-deps.c (sched_analyze_insn): For SIBLING_CALL_P set
        reg_pending_barrier to TRUE_BARRIER.

        PR rtl-optimization/48721
        * sched-ebb.c (begin_move_insn): Insert empty unreachable
        block after BARRIER if insn is followed by it.

2011-11-30  Richard Henderson  <rth@redhat.com>

        * config/sparc/sparc-opts.h (enum sparc_memory_model_type): New.
        * config/sparc/sparc.opt (mmemory-model=): New option.
        * doc/invoke.texi (Sparc Options): Document it.
        * config/sparc/sparc.c (sparc_option_override): Provide default
        for sparc_memory_model.
        (sparc_emit_membar_for_model): Omit barrier combinations that are
        implied by the memory model.

2011-11-30  Richard Henderson  <rth@redhat.com>

        * config/sparc/sync.md (I124MODE): New mode iterator.
        (memory_barrier): Remove.
        (atomic_exchangesi): New.
        (swapsi): Rename from *swapsi.
        (atomic_test_and_set<I124MODE>): New.
        (ldstubqi): Rename from *ldstubqi, merge with expander.
        (ldstub<I24MODE>): Rename from *ldstub<I24MODE>, merge with expander.
        (sync_lock_test_and_setsi): Remove.
        (sync_lock_test_and_set<I12MODE>): Remove.

2011-11-30  Richard Henderson  <rth@redhat.com>

        * config/sparc/constraints.md ("w"): New.
        * config/sparc/predicates.md (mem_noofs_operand): New.
        * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Make static.
        Generate the boolean result of the atomic_compare_exchange.
        (sparc_expand_compare_and_swap): New.
        * config/sparc/sync.md (atomic_compare_and_swap<I>): New.
        (atomic_compare_and_swap<I48MODE>_1): Rename from
        *sync_compare_and_swap<I48MODE>, use mem_noofs_operand.
        (*atomic_compare_and_swapdi_v8plus): Rename from
        *sync_compare_and_swapdi_v8plus, use mem_noofs_operand.
        (sync_compare_and_swap<I12MODE>): Remove.
        (sync_compare_and_swap<I48MODE>): Remove.

2011-11-30  Richard Henderson  <rth@redhat.com>

        * config/sparc/predicates.md (register_or_v9_zero_operand): New.
        * config/sparc/sparc.md (UNSPEC_ATOMIC): New.
        * config/sparc/sync.md (atomic_load<I>): New.
        (atomic_loaddi_1, atomic_store<I>, atomic_storedi_1): New.

2011-11-30  Richard Henderson  <rth@redhat.com>

        * config/sparc/predicates.md (zero_or_v7_operand): New.
        * config/sparc/sparc.c (sparc_emit_membar_for_model): New.
        * config/sparc/sparc-protos.h: Update.
        * config/sparc/sync.md (mem_thread_fence): New.
        (memory_barrier): Use sparc_emit_membar_for_model.
        (membar, *membar_empty, *membar_storestore, *membar_storeload): New.
        (*membar_v8): Accept and ignore the membar mask.
        (*membar): Accept and print the membar mask.

2011-11-30  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/arm.c (arm_issue_rate): Cortex-A15 can triple issue.
        * config/arm/arm.md (mul64): New attribute.
        (generic_sched): Cortex-A15 is not scheduled generically.
        (cortex-a15.md): Include.
        * config/arm/cortex-a15.md: New machine description.
        * config/arm/t-arm (MD_INCLUDES): Add cortex-a15.md.

2011-11-30  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

        * config/arm/t-arm (MD_INCLUDES): Ensure all md files are listed.

2011-11-30  Iain Sandoe  <iains@gcc.gnu.org>

        * doc/tm.texi.in (NEXT_OBJC_RUNTIME): Update macro description.
        * doc/tm.texi: Regenerate.
        * flags.h (flag_next_runtime): Remove references.
        * toplev.c: Likewise.
        * defaults.h (NEXT_OBJC_RUNTIME): Provide default.
        * gccspec.c (lang_specific_driver): Adjust use of NEXT_OBJC_RUNTIME.
        * config/darwin.c (darwin_override_options): Provide default
        Objective-C abi settings and target conflict checks.
        * config/darwin.h (SUBTARGET_C_COMMON_OVERRIDE_OPTIONS): Remove unused
        code. Adjust indenting.

2011-11-29  Joseph Myers  <joseph@codesourcery.com>

        * config/sh/sh.h (enum reg_class, REG_CLASS_NAMES)
        (REG_CLASS_CONTENTS): Add NON_SP_REGS.
        (REGCLASS_HAS_GENERAL_REG): Handle NON_SP_REGS.
        * config/sh/constraints.md (u): New constraint.

2011-11-29  Oleg Endo  <oleg.endo@t-online.de>

        PR target/51337
        * config/sh/sh.c (sh_secondary_reload): Add case when FPUL
        register is being loaded from a pseudo in memory.

2011-11-29  DJ Delorie  <dj@redhat.com>

        * config.gcc (rl78-*-elf): New case.
        * doc/extend.texi: Add RL78 documentation.
        * doc/invoke.texi: Likewise.
        * doc/md.texi: Likewise.
        * doc/contrib.texi: Add RL78.
        * doc/install.texi: Add rl78-*-elf.
        * config/rl78: New directory for the Renesas RL78.

2011-11-29  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51247
        * tree-vrp.c (extract_range_from_assert): For signed 1-bit precision
        types instead of adding 1 subtract -1 and instead of subtracting 1
        add -1 to avoid overflows.

2011-11-29  Andrew MacLeod  <amacleod@redhat.com>

        PR target/50123
        * optabs.c (maybe_optimize_fetch_op): New.  Look for more optimal
        instructions for a FECTH_OP or OP_FECTH sequence.
        (expand_atomic_fetch_op): Call maybe_optimize_fetch_op.

2011-11-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sync.md (UNSPEC_LDA, UNSPEC_STA): New unspecs.
        (movdi_via_fpu): Remove.
        (loaddi_via_fpu): New insn pattern.
        (storedi_via_fpu): Ditto.
        (atomic_loaddi_fpu): Use loaddi_via_fpu and storedi_via_fpu.
        (atomic_storedi_fpu): Ditto.
        * reg-stack.c (get_true_reg): Handle UNSPEC_LDA.
        (subst_stack_regs_pat): Handle UNSPEC_STA.

2011-11-29  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (*floathi<mode>2_i387_with_temp): Do not
        allocate scratch memory for alternative 0.

2011-11-29  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000-builtins.def: Completely rewrite builtin
        handling to centralize more of the builtins in this file.  Change
        some builtin enumerations to be more consistant.  Use a new mask
        to hold the current builtins, including SPE and PAIRED builtins
        which no longer are set via target_flags masks.  Add
        -mdebug=builtin debug support.  For power machines, define all
        Altivec and VSX buitins when the compiler starts, but don't allow
        the use of a builtin unless the appropriate switch is used, or
        #pragma GCC target is used to change the options.  If the user
        uses #pragma GCC target, update the appropriate hardware macros.
        * common/config/rs6000/rs6000-common.c (rs6000_handle_option): Ditto.
        * config/rs6000/rs6000.opt (rs6000_builtin_mask): Ditto.
        * config/rs6000/rs6000-c.c (rs6000_macro_to_expand): Ditto.
        (rs6000_define_or_undefine_macro): Ditto.
        (rs6000_target_modify_macros): Ditto.
        (rs6000_cpu_cpp_builtins): Ditto.
        (altivec_overloaded_builtins): Ditto.
        (altivec_build_resolved_builtin): Ditto.
        * config/rs6000/rs6000.c (rs6000_target_modify_macros_ptr): Ditto.
        (rs6000_builtin_info): Ditto.
        (def_builtin): Ditto.
        (enable_mask_for_builtins): Ditto.
        (DEBUG_FMT_X): Ditto.
        (rs6000_debug_reg_global): Ditto.
        (rs6000_builtin_mask_calculate): Ditto.
        (rs6000_option_override_internal): Ditto.
        (rs6000_builtin_conversion): Ditto.
        (rs6000_builtin_vectorized_function): Ditto.
        (bdesc_3arg): Ditto.
        (bdesc_dst): Ditto.
        (bdesc_2arg): Ditto.
        (builtin_description_predicates): Ditto.
        (bdesc_altivec_preds): Ditto.
        (bdesc_spe_predicates): Ditto.
        (bdesc_spe_evsel): Ditto.
        (bdesc_paired_preds): Ditto.
        (bdesc_abs): Ditto.
        (bdesc_1arg): Ditto.
        (rs6000_overloaded_builtin_p): Ditto.
        (rs6000_expand_unop_builtin): Ditto.
        (bdesc_2arg_spe): Ditto.
        (spe_expand_builtin): Ditto.
        (rs6000_invalid_builtin): Ditto.
        (rs6000_expand_builtin): Ditto.
        (rs6000_init_builtins): Ditto.
        (spe_init_builtins): Ditto.
        (paired_init_builtins): Ditto.
        (altivec_init_builtins): Ditto.
        (builtin_function_type): Ditto.
        (rs6000_common_init_builtins): Ditto.
        (rs6000_builtin_reciprocal): Ditto.
        (rs6000_builtin_mask_names): Ditto.
        (rs6000_pragma_target_parse): Ditto.
        (rs6000_function_specific_print): Ditto.
        * config/rs6000/rs6000.h (MASK_DEBUG_BUILTIN): Ditto.
        (MASK_DEBUG_ALL): Ditto.
        (TARGET_DEBUG_BUILTIN): Ditto.
        (TARGET_EXTRA_BUILTINS): Ditto.
        (REGISTER_TARGET_PRAGMAS): Ditto.
        (enum rs6000_btc): Ditto.
        (RS6000_BTC_*): Ditto.
        (RS6000_BTM_*): Ditto.
        (enum rs6000_builtins): Ditto.
        * config/rs6000/rs6000-protos.h (rs6000_overloaded_builtin_p): Ditto.
        (rs6000_target_modify_macros): Ditto.
        (rs6000_target_modify_macros_ptr): Ditto.

        * config/rs6000/vector.md (unsfloat<VEC_int><mode>2): Use the
        standard name for converting vector unsigned values to floating
        point.  Delete the TARGET_VECTORIZE_BUILTIN_CONVERSION hook, which
        is handled by machine independent code.
        * config/rs6000/rs6000.c (TARGET_VECTORIZE_BUILTIN_CONVERSION): Ditto.
        (rs6000_builtin_conversion): Ditto.

2011-11-29  Dodji Seketeli  <dodji@redhat.com>

        * tree-diagnostic (struct loc_t): Rename into struct loc_map_pair.
        (maybe_unwind_expanded_macro_loc): Adjust.

2011-11-29  David Edelsohn  <dje.gcc@gmail.com>
            Aldy Hernandez  <aldyh@redhat.com>

        * trans-mem.c (ipa_tm_create_version_alias): Mangle new_decl
        if DECL_ONE_ONLY.
        (ipa_tm_create_version): Same.

2011-11-29  Bernd Schmidt  <bernds@codesourcery.com>

        * haifa-sched.c (recompute_todo_spec): Simplify and correct the
        code checking for a clobber of a condition register when deciding
        whether to predicate.

2011-11-29  Diego Novillo  <dnovillo@google.com>

        * gimple.c (gimple_call_set_cannot_inline): Move from gimple.h.
        Update field call_stmt_cannot_inline_p from call graph edge, if needed.
        * gimple.h (gimple_call_set_cannot_inline): Move to gimple.c.

2011-11-29  Sameera Deshpande  <sameera.deshpande@arm.com>

        * config/arm/arm.md (arm_movdi): Update NEG_POOL_RANGE.
        (movdf_soft_insn): Likewise.
        * config/arm/fpa.md (thumb2_movdf_fpa): Likewise.
        * config/arm/neon.md (neon_mov<mode>): Likewise.
        * config/arm/vfp.md (movdi_vfp): Likewise.
        (movdi_vfp_cortexa8): Likewise.
        (movdf_vfp): Likewise.

2011-11-29  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/50074
        * expr.c (expand_expr_addr_expr_1): Don't call force_operand for
        EXPAND_SUM modifier.

2011-11-29  Ira Rosen  <ira.rosen@linaro.org>

        PR tree-optimization/51301
        * tree-vect-patterns.c (vect_recog_over_widening_pattern): Check that
        the last statement doesn't convert to a bigger type than the original
        type of the computation.

2011-11-28  Richard Henderson  <rth@redhat.com>

        * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
        Handle overlap between retval and oldval.  Always compute boolval
        from CR0 EQ value.

2011-11-28  Jakub Jelinek  <jakub@redhat.com>

        PR debug/50317
        * tree-ssa.c (execute_update_addresses_taken): Remove
        var ={v} {CLOBBER} stmts instead of rewriting them into
        var_N ={v} {CLOBBER}.

        PR middle-end/50907
        * function.c (convert_jumps_to_returns): When redirecting an edge
        succ to EXIT_BLOCK_PTR, clear EDGE_CROSSING flag.

        PR tree-optimization/50078
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Copy over
        TREE_THIS_VOLATILE also from the old to new lhs resp. rhs.

        PR tree-optimization/50682
        * tree-eh.c (maybe_remove_unreachable_handlers): New function.
        * tree-flow.h (maybe_remove_unreachable_handlers): New prototype.
        * tree-optimize.c (execute_cleanup_cfg_post_optimizing): Call it.

2011-11-28  Georg-Johann Lay  <avr@gjlay.de>

        * doc/extend.texi (AVR Built-in Functions): Add documentation for
        __builtin_avr_map8 and __builtin_avr_map16.

        * config/avr/avr.md: Document new %t and %T asm output codes.
        (define_c_enum "unspec"): Add UNSPEC_MAP_BITS.
        (adjust_len): Add map_bits.
        (map_bitsqi, map_bitshi): New insns.
        * config/avr/avr-protos.h (avr_out_map_bits): New.
        * config/avr/avr-protos.c (print_operand): Implement %t and %T.
        (adjust_insn_length): Handle ADJUST_LEN_MAP_BITS.
        (avr_double_int_push_digit): New function.
        (avr_map, avr_revert_map, avr_swap_map, avr_id_map): New functions.
        (avr_sig_map, avr_map_hamming_byte): New functions.
        (avr_out_swap_bits, avr_out_revert_bits, avr_move_bits,
        avr_out_map_bits): New functions.
        (enum avr_builtin_id): Add AVR_BUILTIN_MAP8, AVR_BUILTIN_MAP16.
        (avr_init_builtins): Populate __builtin_avr_map8, __builtin_avr_map16.
        (bdesc_2arg): Add __builtin_avr_map8, __builtin_avr_map16 ...
        (avr_expand_builtin): ...and expand them.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in defines:
        __BUILTIN_AVR_MAP8, __BUILTIN_AVR_MAP16.

2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>

        PR target/51278
        * config/mips/mips.c (mips_rtx_costs): Handle baddu.

2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips16_unextended_reference_p): Test for BLKmode.

2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips-protos.h (mips_emit_binary): Declare.
        * config/mips/mips.c (mips_emit_binary): Make global.
        (mips_set_mips16_mode): Turn off -mfix-r4000 in MIPS16 mode.
        (mips_conditional_register_usage): Don't treat LO and HI as
        register operands in MIPS16 mode.
        (mips_mulsidi3_gen_fn): Use {u,}mulsidi3_{32,64}bit_mips16
        for MIPS16 code.
        * config/mips/predicates.md (muldiv_target_operand): New predicate.
        (move_operand): Allow hilo_operand.
        * config/mips/mips.md (mul<mode>3): Explicitly specify LO as the
        target of MIPS16 multiplies, then move it into the target register.
        (mul<mode>3_internal, *macc2, *msac2): Use muldiv_target_operand.
        (<u>mulsidi3_32bit_mips16): New expander.
        (<u>mulsidi3_32bit): Use muldiv_target_operand.
        (<u>mulsidi3_32bit_r4000): Disable for ISA_HAS_DSP.
        (<u>mulsidi3_64bit): Require !TARGET_MIPS16.  Split into
        <u>mulsidi3_64bit_split.
        (<u>mulsidi3_64bit_mips16): New expander.
        (<u>mulsidi3_64bit_split): Likewise, using expansions from
        two previous define_splits.
        (<u>mulsidi3_64bit_hilo, *muls<u>_di, <u>msubsidi4): Use
        muldiv_target_operand.
        (<su>mulsi3_highpart): Use <su>mulsi3_highpart_split for MIPS16 code.
        (<su>mulsi3_highpart_internal): Require !TARGET_MIPS16.
        Split into <su>mulsi3_highpart_split.
        (<su>mulsi3_highpart_split): New expander.
        (<su>muldi3_highpart): Turn into a define_expand.
        Use <su>muldi3_highpart_split for MIPS16 code.
        (<su>muldi3_highpart_internal): Renamed from <su>muldi3_highpart.
        Require !TARGET_MIPS16.  Split into <su>muldi3_highpart_split.
        (<su>muldi3_highpart_split): New expander.
        (<u>mulditi3): Explicitly specify LO as the target of MIPS16
        multiplies, then move it into the target register.
        (<u>mulditi3_internal, <u>maddsidi4): Use muldiv_target_operand.
        (divmod<mode>4, udivmod<mode>4): Turn into define_expands.
        Use <u>divmod<mode>4_split for MIPS16 code, then explicitly
        move LO into operand 0.
        (divmod<mode>4_internal, udivmod<mode>4_internal): Renamed
        from <u>divmod<mode>4.  Use muldiv_target_operand.
        Require !TARGET_MIPS16.  Split into <u>divmod<mode>4_split.
        (<u>divmod<mode>4_split): New expander.
        (<u>divmod<GPR:mode>4_hilo_<HILO:mode>): Use muldiv_target_operand.
        (mfhi<GPR:mode>_<HILO:mode>): Use hilo_operand.

2011-11-27  Richard Sandiford  <rdsandiford@googlemail.com>

        * hard-reg-set.h (target_hard_regs): Add x_accessible_reg_set
        and x_operand_reg_set.
        (accessible_reg_set, operand_reg_set): New macros.
        * reginfo.c (init_reg_sets): Initialize accessible_reg_set and
        operand_reg_set.
        (saved_accessible_reg_set, saved_operand_reg_set): New variables.
        (save_register_info): Save them.
        (restore_register_info): Restore them.
        (init_reg_sets_1): Limit operand_reg_set to accessible_reg_set.
        Remove NO_REGS registers from operand_reg_set.  Treat members
        of operand_reg_set as fixed.
        * recog.c (general_operand): Check operand_reg_set rather than NO_REGS.
        (register_operand, nonmemory_operand): Likewise.
        * varasm.c (make_decl_rtl): Always use DECL_MODE as the mode of
        register variables.  Check accessible_reg_set and operand_reg_set.
        * config/mips/mips.c (mips_conditional_register_usage): Remove
        inaccessible register from accessible_reg_set, rather than just
        making them fixed.

2011-11-27  Gerald Pfeifer  <gerald@pfeifer.com>

        * config/pa/pa-linux.h (TARGET_GAS): Remove comment.

2011-11-26  Richard Henderson  <rth@redhat.com>

        * config/arm/arm.c (arm_init_libfuncs): Call init_sync_libfuncs
        for Linux.

2011-11-26  Richard Henderson  <rth@redhat.com>

        * optabs.c (expand_atomic_fetch_op): Always return result.

        * optabs.c (init_sync_libfuncs_1): Include max in iteration.

        * omp-low.c (expand_omp_atomic): Assume anything aligned to
        BIGGEST_ALIGNMENT is aligned.

2011-11-26  Richard Henderson  <rth@redhat.com>

        * config/m68k/m68k.md (UNSPECV_CAS_1, UNSPECV_CAS_2): New.
        (UNSPECV_TAS_1, UNSPECV_TAS_2): New.
        (I): New mode iterator.
        (xz): New mode attribute.
        * config/m68k/sync.md: New file.

        * config/m68k/linux.h (TARGET_INIT_LIBFUNCS): New.
        * config/m68k/m68k.c (m68k_init_sync_libfuncs): New.

2011-11-26  Nathan Sidwell  <nathan@acm.org>

        PR gcov-profile/51297
        * gcov.c (main): Allocate initial names and sources arrays.
        (find_source): Don't check for null name or source arrays here.

2011-11-26  Jakub Jelinek  <jakub@redhat.com>

        PR rtl-optimization/49912
        * cfgrtl.c (rtl_verify_flow_info_1): Ignore also EDGE_PRESERVE bit
        when counting n_branch.

2011-11-26  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sync.md (movdi_via_fpu): Add %Z insn suffixes.

2011-11-26  Joern Rennecke  <joern.rennecke@embecosm.com>

        PR middle-end/50074
        * calls.c (mem_overlaps_already_clobbered_arg_p):
        Return false if no outgoing arguments have been stored so far.

2011-11-25  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (print_operand): Support code = 'i' for CONST_INT.

2011-11-24  Andrew MacLeod  <amacleod@redhat.com>

        PR other/51011
        * tree.h (is_builtin_name): No longer external.
        * builtins.c (is_builtin_name): Make static.
        * varasm.c (incorporeal_function_p): __sync and __atomic external calls
        are not incorporeal and may need asm label processing.

2011-11-25  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50566
        * config/avr/avr-protos.h (avr_log_t): Add field .builtin.
        * config/avr/avr-log.c (avr_log_set_avr_log): Initialize it.
        Don't bypass TARGET_ALL_DEBUG.  Print self-info with ?.
        (avr_log_vadump): Support %D and %X to print double_int.
        (avr_double_int_pop_digit): New static function.
        (avr_dump_double_int_hex): New static function.

2011-11-24  Enkovich Ilya  <ilya.enkovich@intel.com>

        PR target/51287
        * config/i386/i386.c (distance_non_agu_define_in_bb): Fix insn
        attr check.

2011-11-24  Andrew MacLeod  <amacleod@redhat.com>

        * optab.c (maybe_emit_atomic_exchange): New.  Try to emit an
        atomic_exchange pattern.
        (maybe_emit_sync_lock_test_and_set): New.  Try to emit an exchange
        using __sync_lock_test_and_set.
        (maybe_emit_compare_and_swap_exchange_loop): New. Try to emit an
        exchange using a compare_and_swap loop.
        (expand_sync_lock_test_and_set): New.  Expand sync_lock_test_and_set.
        (expand_atomic_test_and_set): New.  Expand test_and_set operation.
        (expand_atomic_exchange): Use new maybe_emit_* functions.
        (expand_atomic_store): Use new maybe_emit_* functions.
        * builtins.c (expand_builtin_sync_lock_test_and_set): Call
        expand_sync_lock_test_and_set routine.
        (expand_builtin_atomic_exchange): Remove parameter from call.
        (expand_builtin_atomic_clear): Use atomic_clear pattern if present.
        (expand_builtin_atomic_test_and_set): Add target and simply call
        expand_atomic_test_and_set.
        (expand_builtin): Add target to expand_builtin_atomic_test_and_set.
        * expr.h (expand_atomic_exchange): Add parameter.
        (expand_sync_lock_test_and_set): New prototype.
        (expand_atomic_test_and_set, expand_atomic_clear): New prototypes.

2011-11-24  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/51134
        * config/i386/i386.h (processor_costs): Revert revision 181357.
        * config/i386/i386.c (cost models): Likewise.
        (core_cost): Likewise.
        (promote_duplicated_reg): Likewise.
        (promote_duplicated_reg_to_size): Likewise.
        (processor_target): Likewise.
        (expand_set_or_movmem_via_loop_with_iter): Likewise.
        (expand_set_or_movmem_via_loop): Likewise.
        (emit_strset): Likewise.
        (expand_movmem_epilogue): Likewise.
        (expand_setmem_epilogue): Likewise.
        (expand_movmem_prologue): Likewise.
        (expand_setmem_prologue): Likewise.
        (expand_constant_movmem_prologue): Likewise.
        (expand_constant_setmem_prologue): Likewise.
        (decide_alg): Likewise.
        (decide_alignment): Likewise.
        (ix86_expand_movmem): Likewise.
        (ix86_expand_setmem): Likewise.
        (ix86_slow_unaligned_access): Likewise.
        * config/i386/i386.md (strset): Likewise.
        * config/i386/sse.md (vec_dupv4si): Likewise.
        (vec_dupv2di): Likewise.

2011-11-24  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (*rotlhi2.15): Set length to 4.

2011-11-24  Razya Ladelsky  <razya@il.ibm.com>

        * tree-data-ref.c (initialize_data_dependence_relation): Update
        comment for the self dependence case.
        (compute_self_dependence): Remove.
        * tree-vect-data-refs.c (vect_analyze_data_refs): Remove call to
        compute_self_dependenc.

2011-11-24  Alan Modra  <amodra@gmail.com>

        * c-decl.c (warn_if_shadowing): Don't warn if shadowed
        identifier is from system header.

2011-11-23  Jakub Jelinek  <jakub@redhat.com>

        PR target/51261
        * config/i386/i386.c (decide_alg): Initialize *dynamic_check
        even if !optimize.

2011-11-23  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/48455
        * doc/invoke.texi (-fira-region): Document default values.

        * flags-types.h (enum ira_region): Add new value
        IRA_REGION_AUTODETECT.

        * common.opt (fira-region): Set up initial value to
        IRA_REGION_AUTODETECT.

        * toplev.c (process_options): Set up flag_ira_region depending on
        -O options.

        * ira.c (ira.c): Remove optimize guard for ira_build.

2011-11-23  Chung-Lin Tang  <cltang@codesourcery.com>

        PR rtl-optimization/50496
        * jump.c (redirect_jump): Assert fail on nlabel == NULL_RTX
        only after epilogue is created. Add comments.

2011-11-22  Richard Henderson  <rth@redhat.com>

        * config/ia64/ia64.c (ia64_expand_atomic_op): Add model parameter.
        Generate the barrier required for the memory model.
        (rtx_needs_barrier): Handle UNSPEC_FETCHADD_REL, UNSPEC_CMPXCHG_REL.
        * config/ia64/ia64-protos.h: Update.
        * config/ia64/ia64.md (UNSPEC_FETCHADD_REL): New.
        (UNSPEC_CMPXCHG_REL): New.
        * config/ia64/sync.md (mem_thread_fence): New.
        (atomic_load<IMODE>, atomic_store<IMODE>): New.
        (atomic_compare_and_swap<IMODE>): New.
        (cmpxchg_acq_<I124MODE>, cmpxchg_acq_di): New.
        (atomic_exchange<IMODE>): New.
        (xchg_acq_<IMODE>): Rename from sync_lock_test_and_set<IMODE>.
        (atomic_<FETCHOP><IMODE>, atomic_nand<IMODE>): New.
        (atomic_fetch_<FETCHOP><IMODE>, atomic_fetch_nand<IMODE>): New.
        (atomic_<FETCHOP>_fetch<IMODE>, atomic_nand_fetch<IMODE>): New.
        (fetchadd_rel_<I48MODE>): New.
        (sync_<FETCHOP><IMODE>, sync_nand<IMODE>): Remove.
        (sync_old_<FETCHOP><IMODE>, sync_old_nand<IMODE>): Remove.
        (sync_new_<FETCHOP><IMODE>, sync_new_nand<IMODE>): Remove.
        (sync_compare_and_swap<IMODE>): Remove.
        (sync_lock_release<IMODE>): Remove.

        * config/ia64/ia64.md: Use define_c_enum for UNSPEC_*
        and UNSPECV_* constants.

2011-11-22  Tom de Vries  <tom@codesourcery.com>

        PR rtl-optimization/50764
        * sched-deps.c (sched_analyze_insn): Make sure frame-related insns are
        not moved past preceding jump.

2011-11-22  Jeff Law  <law@redhat.com>

        * doc/contrib.texi: Add entry for David Binderman.

2011-11-22  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * postreload.c (reload_combine): Mark reg_state as invalid at
        volatile insns if there has been a use already.

2011-11-21  Aldy Hernandez  <aldyh@redhat.com>

        * opts.c (finish_options): Do not fail for -fgnu-tm.
        * gimple-streamer-out.c (output_gimple_stmt): Handle
        GIMPLE_TRANSACTION.
        * gimple-streamer-in.c (input_gimple_stmt): Same.
        * lto-cgraph.c (input_overwrite_node): Read tm_clone bit.
        (lto_output_node): Write tm_clone bit.

2011-11-22  Ian Lance Taylor  <iant@google.com>

        * doc/install.texi (Configuration): Correct doc of
        --enable-build-poststage1-with-cxx: it is not experimental.

2011-11-22  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/51074
        * fold-const.c (fold_binary_loc): Fix up VEC_INTERLEAVE_*_EXPR
        handling for BYTES_BIG_ENDIAN.
        * optabs.c (can_vec_perm_for_code_p): Likewise.

2011-11-22  Michael Matz  <matz@suse.de>

        PR other/51125
        * trans-mem.c (expand_block_tm): Ignore clobbers.

2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>

        *  config/darwin.h (ENDFILE_SPEC): New.
        (DARWIN_CRT1_SPEC): Add crttms.o.
        (STARTFILE_SPEC): Likewise for dynamic libs and bundles.
        * config/i386.h (ENDFILE_SPEC): Amend to include crttme.o.

2011-11-22  Michael Matz  <matz@suse.de>

        PR c++/51264
        * tree.c (iterative_hash_expr): Remove break after return.

2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>

        * target.def (tm_clone_table_section): New hook.
        * doc/tm.texi.in (TARGET_ASM_TM_CLONE_TABLE_SECTION): Define.
        * doc/tm.texi: Regenerate.
        * varasm.c (dump_tm_clone_pairs): Use target tm_clone_table_section.
        * output.h (default_clone_table_section): New prototype.
        * config/darwin.h (TARGET_ASM_TM_CLONE_TABLE_SECTION): New.
        * config/darwin-protos.h (darwin_tm_clone_table_section): New prototype.
        * config/darwin.c (darwin_tm_clone_table_section): New.

2011-11-21  Torvald Riegel  <triegel@redhat.com>

        * trans-mem.c (diagnose_tm_1): Print an expression instead of a
        declaration in error messages for indirect calls.

2011-11-21  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.c (sparc_regmode_natural_size): New function
        implementing REGMODE_NATURAL_SIZE taking into consideration vector
        modes.
        (sparc_modes_tieable_p): Similarly for MODES_TIEABLE_P.
        * config/sparc/sparc-protos.h (sparc_regmode_natural_size,
        sparc_modes_tieable_p): Declare.
        * gcc/config/sparc/sparc.h (REGMODE_NATURAL_SIZE,
        MODES_TIEABLE_P): Use new helper functions.

        Revert
        2011-11-16  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR middle-end/50325
        * expmed.c (store_bit_field_1): Use extract_bit_field on big
        endian targets if the source cannot be exactly covered by word
        mode chunks.

2011-11-21  Jakub Jelinek  <jakub@redhat.com>

        PR debug/50827
        * var-tracking.c (loc_cmp): For ENTRY_VALUEs use ENTRY_VALUE_EXP
        macro instead of XEXP.

2011-11-21  Andreas Tobler  <andreast@fgznet.ch>

        * configure: Regenerate.

2011-11-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (output_reload_in_const): Loading a byte with 0
        must not affect cc0.
        * config/avr/avr.md (*movhi, *movpsi, *movsi, *movsf): Zero to any
        register does not change cc0. Same for any constant to ld-register.

2011-11-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (unspec) <UNSPEC_MOVNTQ, UNSPEC_PFRCP,
        UNSPEC_PFRCPIT1, UNSPEC_PFRCPIT2, UNSPEC_PFRSQRT, UNSPEC_PFRSQIT1>:
        Move from config/i386/i386.md
        (unspecv) <UNSPECV_EMMS, UNSPECV_FEMMS>: Ditto.
        * config/i386/sse.md (unspec) <UNSPEC_MOVNT,UNSPEC_MOVU, UNSPEC_LDDQU,
        UNSPEC_PSHUFB, UNSPEC_PSIGN, UNSPEC_PALIGNR, UNSPEC_EXTRQI,
        UNSPEC_EXTRQ, UNSPEC_INSERTQI, UNSPEC_INSERTQ, UNSPEC_BLENDV,
        UNSPEC_INSERTPS, UNSPEC_DP, UNSPEC_MOVNTDQA, UNSPEC_MPSADBW,
        UNSPEC_PHMINPOSUW, UNSPEC_PTEST, UNSPEC_PCMPESTR, UNSPEC_PCMPISTR,
        UNSPEC_FMADDSUB, UNSPEC_XOP_UNSIGNED_CMP, UNSPEC_XOP_TRUEFALSE,
        UNSPEC_XOP_PERMUTE, UNSPEC_FRCZ, UNSPEC_AESENC, UNSPEC_AESENCLAST,
        UNSPEC_AESDEC, UNSPEC_AESDECLAST, UNSPEC_AESIMC,
        UNSPEC_AESKEYGENASSIST, UNSPEC_PCLMUL, UNSPEC_PCMP, UNSPEC_VPERMIL,
        UNSPEC_VPERMIL2, UNSPEC_VPERMIL2F128, UNSPEC_CAST, UNSPEC_VTESTP,
        UNSPEC_VCVTPH2PS, UNSPEC_VCVTPS2PH, UNSPEC_VPERMSI, UNSPEC_VPERMDF,
        UNSPEC_VPERMSF, UNSPEC_VPERMTI, UNSPEC_GATHER, UNSPEC_VSIBADDR>: Ditto.
        (unspecv) <UNSPECV_LDMXCSR, UNSPECV_STMXCSR, UNSPECV_CLFLUSH,
        UNSPECV_MONITOR, UNSPECV_MWAIT, UNSPECV_VZEROALL, UNSPECV_VZEROUPPER>:
        Ditto.
        * config/i386/sync.md (unspec) <UNSPEC_LFENCE, UNSPEC_SFENCE,
        UNSPEC_MFENCE, UNSPEC_MOVA>: Ditto.
        (unspecv) <UNSPECV_CMPXCHG_1, UNSPECV_CMPXCHG_2, UNSPECV_CMPXCHG_3,
        UNSPECV_CMPXCHG_4, UNSPECV_XCHG, UNSPECV_LOCK>: Ditto.
        (sse2_lfence): Move from config/i386/sse.md.
        (*sse2_lfence): Ditto.
        (sse_sfence): Ditto.
        (*sse_sfence): Ditto.
        (sse2_mfence): Ditto.
        (mfence_sse2): Ditto.  Rename from *sse2_mfence.  Enable also
        for TARGET_64BIT.
        (mem_thread_fence): Use mfence_sse2.

2011-11-21  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.h (struct base_arch_s): Add field sfr_offset.
        * config/avr/avr-devices.c: Ditto. And initialize it.
        * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in define
        __AVR_SFR_OFFSET__.
        * config/avr/avr-protos.h (out_movqi_r_mr, out_movqi_mr_r): Remove.
        (out_movhi_r_mr, out_movhi_mr_r): Remove.
        (out_movsi_r_mr, out_movsi_mr_r): Remove.
        * config/avr/avr.md (*cbi, *sbi): Use %i instead of %m-0x20.
        (*insv.io, *insv.not.io): Ditto.
        * config/avr/avr.c (out_movsi_r_mr, out_movsi_mr_r): Make static.
        (print_operand): Implement "%i" to print address as I/O address.
        (output_movqi): Clean up call of out_movqi_mr_r.
        (output_movhi): Clean up call of out_movhi_mr_r.
        (avr_file_start): Use avr_current_arch->sfr_offset instead of
        magic -0x20. Use TMP_REGNO, ZERO_REGNO instead of 0, 1.
        (avr_out_sbxx_branch): Use %i instead of %m-0x20.
        (out_movqi_r_mr, out_movqi_mr_r): Ditto. And make static.
        (out_movhi_r_mr, out_movhi_mr_r): Ditto. And use avr_asm_len.
        (out_shift_with_cnt): Clean up code: Use avr_asm_len.
        (output_movsisf): Use output_reload_insisf for all CONSTANT_P sources.
        (avr_out_movpsi): USE avr_out_reload_inpsi for all CONSTANT_P sources.
        Clean up call of avr_out_store_psi.
        (output_reload_in_const): Don't cut symbols longer than 2 bytes.
        (output_reload_insisf): Filter CONST_INT_P or CONST_DOUBLE_P to
        try if setting pre-cleared register is advantageous.
        (avr_out_plus_1): Use gen_int_mode instead of GEN_INT.

2011-11-20  Joey Ye  <joey.ye@arm.com>

        * expr.c (expand_expr_real_1): Correctly handle strict volatile
        bitfield loads smaller than mode size.

2011-11-20  Richard Henderson  <rth@redhat.com>

        * config/mips/mips.c (mips_init_libfuncs): Call init_sync_libfuncs.

2011-11-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/51235
        * config/i386/i386.c (ix86_expand_vcond): Generate TARGET_XOP
        patterns for supported mode only.

        PR target/51236
        * config/i386/i386.c (ix86_expand_builtin)
        <IX86_BUILTIN_GATHERALTSIV4DI>: Use CODE_FOR_avx2_gathersiv4di.

2011-11-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (UNSPEC_MOVNTI): Remove.
        (UNSPEC_MOVNTQ): New unspec.
        * config/i386/mmx.md (sse_movntq): Rename from sse_movntdi.
        Use UNSPEC_MOVNTQ instead of UNSPEC_MOVNT.
        * config/i386/sse.md (sse2_movnti<mode>): Use UNSPEC_MOVNT instead of
        UNSPEC_MOVNTI.
        (STORENT_MODE): Add DI and V4DI modes.

2011-11-20  Nathan Sidwell  <nathan@acm.org>

        PR gcov-profile/51113
        * coverage.c (build_var): Propagate visibility for public
        decls.  Use make_decl_one_only for PIC correctness.

        testsuite/
        * gcc.misc-tests/gcov-13.c: Check gcovpart-13b coverage
        * gcc.misc-tests/gcov-16.c: New.
        * gcc.misc-tests/gcov-17.c: New.
        * g++.dg/gcov/gcov-8.C: New.
        * g++.dg/gcov/gcov-9.C: New.
        * g++.dg/gcov/gcov-10.C: New.

2011-11-19  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/51187
        * reorg.c (relax_delay_slots): Do not consider a jump useless if there
        is a barrier between the jump and its target label.

2011-11-19  Patrick Marlier  <patrick.marlier@gmail.com>

        PR middle-end/51211
        * tracer.c (ignore_bb_p): Don't copy GIMPLE_TRANSACTION.

2011-11-19  Eric Botcazou  <ebotcazou@adacore.com>

        * expmed.c (store_bit_field_1): Revert bogus formatting change.

2011-11-19  Richard Earnshaw  <rearnsha@arm.com>

        PR target/50493
        * config/arm/arm.c (neon_disambiguate_copy): Correctly handle partial
        overlap of src and dest operands.

2011-11-19  Iain Sandoe  <iains@gcc.gnu.org>

        * config/darwin.h (ASM_DEBUG_SPEC): New.
        * config/darwin9.h (ASM_DEBUG_SPEC): New.

2011-11-18  Jan Hubicka  <jh@suse.cz>

        * config/i386/i386.c (atom_cost): Disable SSE loop until alignment
        issues are fixed.

2011-11-18  Anatoly Sokolov  <aesok@post.ru>

        * config/cris/cris.c (cris_function_value_regno_p): Make static.
        (TARGET_FUNCTION_VALUE_REGNO_P): Define.
        * config/cris/cris.h (FUNCTION_VALUE_REGNO_P): Remove.
        * config/cris/cris-protos.h (cris_function_value_regno_p): Remove.

2011-11-18  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/33944
        * doc/extend.texi: Document __builtin_ia32_movnti64.

        * config/i386/emmintrin.h (_mm_stream_si64): New.

        * config/i386/i386-builtin-types.def: Add VOID_FTYPE_PLONGLONG_LONGLONG.

        * config/i386/i386.c (ix86_builtins): Add IX86_BUILTIN_MOVNTI64.
        (bdesc_special_args): Update __builtin_ia32_movnti.  Add
        __builtin_ia32_movnti64.
        (ix86_expand_special_args_builtin): Handle
        VOID_FTYPE_PLONGLONG_LONGLONG.

        * config/i386/i386.md (UNSPEC_MOVNTI): New.

        * config/i386/sse.md (sse2_movntsi): Renamed to ...
        (sse2_movnti<mode>): This.

2011-11-18  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        * config/avr/avr.h (base_arch_s): Add field n_segments.
        (ADDR_SPACE_PGM1, ADDR_SPACE_PGM2, ADDR_SPACE_PGM3,
        ADDR_SPACE_PGM4, ADDR_SPACE_PGM5, ADDR_SPACE_PGMX): New address spaces.
        (AVR_HAVE_ELPM, AVR_HAVE_ELPMX): New defines.
        (INIT_EXPANDERS): New define.
        * config/avr/avr-protos.h (avr_mem_pgmx_p): New.
        (avr_init_expanders): New.
        (avr_emit_movmemhi, avr_out_movmem): New.
        (avr_xload_libgcc_p): New.
        * config/avr/avr-c.c (avr_register_target_pragmas): Register
        address spaces __pgm1, __pgm2,  __pgm3,  __pgm4  __pgm5,  __pgmx.
        (avr_cpu_cpp_builtins): Add built-in defines __PGM1,
        __PGM2, __PGM3, __PGM4, __PGM5, __PGMX.
        * config/avr/avr-devices.c (avr_arch_types): Set field n_segments.

        * config/avr/avr.c (AVR_SECTION_PROGMEM): Change define to cover
        3 bits instead of just 1.
        (xstring_empty, xstring_e, rampz_rtx): New static GTYed variables.
        (progmem_section): Change from section to array of sections.
        (progmem_section_prefix): New static variable.
        (avr_file_start): Print set for __RAMPZ__
        (avr_option_override): Move initialization of RTXes from here...
        (avr_init_expanders): ...to this new function.
        (avr_pgm_segment): New static function.
        (avr_decl_pgm_p): Handle error_mark_node.
        (avr_mem_pgmx_p, avr_decl_pgmx_p): New static functions.
        (avr_out_xload, avr_find_unused_d_reg): New static functions.
        (expand_prologue, expand_epilogue): Use rampz_rtx.
        (print_operand): Hande CONST_STRING.
        (avr_xload_libgcc_p): New static function.
        (avr_out_lpm_no_lpmx, avr_out_lpm): Handle ELPM.
        (avr_progmem_p): Return 2 for 24-bit flash address space.
        (avr_out_sbxx_branch): Clean-up code from ASn macros.
        (out_movqi_r_mr, out_movqi_mr_r): Ditto. And recognize RAMPZ's
        address and print symbolically.
        (avr_asm_named_section, avr_section_type_flags,
        avr_encode_section_info, avr_asm_select_section,
        avr_addr_space_address_mode, avr_addr_space_pointer_mode,
        avr_addr_space_legitimate_address_p, avr_addr_space_convert,
        avr_addr_space_legitimize_address): Handle new address spaces.
        (avr_output_progmem_section_asm_op): New static function.
        (avr_asm_init_sections): Initialize progmem_section[].
        (adjust_insn_length): Handle ADJUST_LEN_XLOAD, ADJUST_LEN_MOVMEM.
        (avr_const_address_lo16): New static function.
        (avr_assemble_integer): Use it to handle 3-byte integers.
        (avr_emit_movmemhi, avr_out_movmem): New functions.

        * config/avr/predicates.md (nox_general_operand): Handle new
        address spaces.
        * config/avr/avr.md (unspec): Add UNSPEC_MOVMEM.
        (adjust_len): Add xload, movmem.
        (SP_ADDR): New define_constants.
        (isa): Add "lpm", "lpmx", "elpm", "elpmx".
        (enabled): Handle them.
        (load<mode>_libgcc): New expander.
        (*load.<mode>.libgcc): Rename to load_<mode>_libgcc.
        (xload8_A, xload<mode>_A): New insn-and-splits.
        (xload_8, xload_<mode>_libgcc, xload_<mode>, loadmem_elpm): New insns.
        (mov<mode>): Handle new address spaces.
        (movmemhi): Rewrite using avr_emit_movmemhi.
        (MOVMEM_r_d): New mode attribute.
        (movmem_<mode>, movmem_qi_elpm): New insns.
        (setmemhi, *clrmemqi, *clrmemhi, strlenhi, *strlenhi): Unquote
        C-code.  Use label instead of hard-coded instrunction lengths.

2011-11-18  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/50605
        * gimple.c (is_gimple_ip_invariant_address): Also handle MEM_REFs
        of IPA invariant decls.

2011-11-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * tree-outof-ssa.c (insert_back_edge_copies):  Add call to
        mark_dfs_back_edges.

2011-11-18  Iain Sandoe  <iains@gcc.gnu.org>

        PR target/49992
        * configure.ac: Remove ranlib special-casing for Darwin.
        * configure: Regenerate.

2011-11-18  Uros Bizjak  <ubizjak@gmail.com>

        PR tree-optimization/51118
        * fold-const.c (fold_checksum_tree): Check for TS_TYPED structure
        before using TREE_TYPE accessor on expr.

2011-11-17  Jan Hubicka  <jh@suse.cz>

        PR bootstrap/51134
        * i386.c (atom_cost): Fix 32bit memset description.
        (expand_set_or_movmem_via_loop_with_iter): Output proper bounds check
        for epilogue loops.
        (expand_movmem_epilogue): Handle epilogues up to size 15 w/o producing
        byte loop.
        (decide_alg): sse_loop is not useable wthen SSE2 is disabled;
        when not optimizing always use rep movsb or lincall; do not produce
        word sized loops when optimizing memset for size (to avoid need
        for large constants).
        (ix86_expand_movmem): Get into sync with ix86_expand_setmem;
        choose unroll factors better; always do 128bit moves when producing
        SSE loops; do not produce loopy epilogue when size is too small.
        (promote_duplicated_reg_to_size): Do not look into desired alignments
        when doing vector expansion.
        (ix86_expand_setmem): Track better when promoted value is available;
        choose unroll factors more sanely. Output loopy epilogue only
        when needed.

2011-11-17  Steve Ellcey  <sje@cup.hp.com>

        PR middle-end/51144
        * output.h (fprint_w): Remove.
        * final.c (fprint_w): Remove.
        (output_addr_const): Change fprint_w back to fprintf.

2011-11-17  Andrew Pinski  <apinski@cavium.com>

        * config/host-linux.c (TRY_EMPTY_VM_SPACE): Define for MIPS.

2011-11-17  Andrew MacLeod  <amacleod@redhat.com>

        * builtins.c (expand_builtin): Remove 4th parameter representing
        weak/strong mode when __atomic_compare_exchange becomes a library call.

2011-11-17  Richard Henderson  <rth@redhat.com>

        * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap): Get
        new pseudo for target after convert_modes.
        (rs6000_expand_atomic_exchange, rs6000_expand_atomic_op): Likewise.

2011-11-17  Richard Henderson  <rth@redhat.com>

        * config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap): Get
        new pseudo for target after convert_modes.
        (rs6000_expand_atomic_exchange, rs6000_expand_atomic_op): Likewise.

2011-11-17  Richard Henderson  <rth@redhat.com>

        * builtins.c (expand_builtin_mem_thread_fence): Remove.
        (expand_builtin_mem_signal_fence): Remove.
        (expand_builtin_atomic_thread_fence): Use expand_mem_thread_fence.
        (expand_builtin_sync_synchronize): Likewise.
        (expand_builtin_atomic_signal_fence): Use expand_mem_signal_fence.
        * optabs.c (expand_asm_memory_barrier): Split out from
        expand_builtin_mem_signal_fence.
        (expand_mem_thread_fence): New, a combination of code from
        expand_builtin_mem_thread_fence and expand_builtin_sync_synchronize.
        (expand_mem_signal_fence): Moved and renamed from
        expand_builtin_mem_signal_fence.
        (expand_atomic_exchange): Use expand_mem_thread_fence.
        (expand_atomic_load, expand_atomic_store): Likewise.
        * expr.h, optabs.h: Update decls.

2011-11-17  Bin Cheng  <bin.cheng@arm.com>

        PR rtl-optimization/50663
        * cprop.c (implicit_set_indexes): New global variable.
        (insert_set_in_table): Add additional parameter and record implicit
        set information.
        (hash_scan_set): Add additional parameter and pass it to above.
        (hash_scan_insn): Pass false to hash_scan_set.
        (compute_hash_table_work): Pass true to hash_scan_set.
        (compute_cprop_data): Add implicit set to AVIN of block which the
        implicit set is recorded for.
        (one_cprop_pass): Handle implicit_set_indexes array.

2011-11-17  Michael Matz  <matz@suse.de>

        PR middle-end/50644
        PR middle-end/50741
        * tree-ssa-live.c (mark_all_vars_used_1): Recurse only for decls of
        current function.
        (remove_unused_locals): Ditto.

2011-11-16  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_split_compare_and_swap_12): Copy
        ALIAS_SET_MEMORY_BARRIER when creating a new memory.
        (alpha_split_atomic_exchange_12): Likewise.
        * config/rs6000/rs6000.c (rs6000_adjust_atomic_subword): Likewise.

2011-11-16  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/i386elf.h (PREFERRED_DEBUGGING_TYPE): Remove.

2011-11-16  David Edelsohn  <dje.gcc@gmail.com>

        * config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags):
        Default to minimum alignment if decl is NULL.

2011-11-16  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (round<mode>2_vec_pack_sfix): Optimize V2DFmode
        sequence for AVX.
        (<sse4_1>_round<ssemodesuffix>_vec_pack_sfix<avxsizesuffix>): Ditto.

2011-11-16  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>

        * doc/invoke.texi: Document AMD bdver1 and btver1.

2011-11-16  Richard Earnshaw  <rearnsha@arm.com>
            Bernd Schmidt <bernds@coudesourcery.com>
            Sebastian Huber <sebastian.huber@embedded-brains.de>

        PR target/49641
        * config/arm/arm.c (store_multiple_sequence): Avoid cases where
        the base reg is stored iff compiling for Thumb1.

2011-11-16  Razya Ladelsky  <razya@il.ibm.com>

        PR tree-optimization/49960
        * tree-data-ref.c (initialize_data_dependence_relation): Add
        initializations.
        Remove call to compute_self_dependence.
        (compute_affine_dependence): Remove the !DDR_SELF_REFERENCE condition.
        (compute_self_dependence): Remove old code. Add call to
        compute_affine_dependence.
        (compute_all_dependences): Remove call to compute_self_dependence.
        Add call to compute_affine_dependence.

2011-11-16  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        PR middle-end/50325
        * expmed.c (store_bit_field_1): Use extract_bit_field on big
        endian targets if the source cannot be exactly covered by word
        mode chunks.

2011-11-15  Joseph Myers  <joseph@codesourcery.com>

        * config/i386/i386elf.h (ASM_OUTPUT_ASCII): Change STRING_LIMIT to
        ELF_STRING_LIMIT.

2011-11-15  Richard Henderson  <rth@redhat.com>

        * config/alpha/alpha.c (alpha_pre_atomic_barrier): New.
        (alpha_post_atomic_barrier): New.
        (alpha_split_atomic_op): New memmodel argument; honor it.
        (alpha_split_compare_and_swap): Take array of operands.  Honor
        memmodel; always set bool output
        (alpha_expand_compare_and_swap_12): Similarly.
        (alpha_split_compare_and_swap_12): Similarly.
        (alpha_split_atomic_exchange): Similarly.  Rename from
        alpha_split_lock_test_and_set.
        (alpha_expand_atomic_exchange_12): Similarly.  Rename from
        alpha_expand_lock_test_and_set_12.
        (alpha_split_atomic_exchange_12): Similarly.  Rename from
        alpha_split_lock_test_and_set_12.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.md (UNSPECV_CMPXCHG): New.
        * config/alpha/constraints.md ("w"): New.
        * config/alpha/predicates.md (mem_noofs_operand): New.
        * config/alpha/sync.md (atomic_compare_and_swap<mode>): Rename from
        sync_compare_and_swap<mode>; add the new parameters.
        (atomic_exchange<mode>): Update from sync_test_and_set<mode>.
        (atomic_fetch_<op><mode>): Update from sync_old_<op><mode>.
        (atomic_<op>_fetch<mode>): Update from sync_new_<op><mode>.
        (atomic_<op><mode>): Update from sync_<op><mode>.

2011-11-16  Tom de Vries  <tom@codesourcery.com>

        * tree-ssa-tail-merge.c (replace_block_by): Add frequency of bb2 to bb1.

2011-11-16  Alan Modra  <amodra@gmail.com>

        PR rtl-optimization/51051
        PR bootstrap/51086
        * function.c (thread_prologue_and_epilogue_insns): Guard
        emitting return with single_succ_p test.

2011-11-15  Joern Rennecke  <joern.rennecke@embecosm.com>

        * config/epiphany/epiphany.md (mov<mode>cc): Fix code to
        get mode from CMP_OP1 if CMP_OP0 is VOIDmode.

2011-11-15  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (vec_pack_trunc_v2df): Optimize sequence for AVX.
        (vec_pack_sfix_trunc_v2df): Ditto.
        (vec_pack_sfix_v2df): Ditto.
        (vec_pack_sfix_trunc_v4df): Generate fix_truncv4dfv4si2 and
        avx_vec_concatv8si patterns.
        (vec_pack_sfix_v4df): Generate avx_cvtpd2dq256 and
        avx_vec_concatv8si patterns.

2011-11-15  Torvald Riegel  <triegel@redhat.com>

        * c-parser.c (c_parser_transaction_expression): Require parentheses
        when parsing transaction expressions.

2011-11-15  Tristan Gingold  <gingold@adacore.com>

        * incpath.c (get_added_cpp_dirs): New function.
        * incpath.h (get_added_cpp_dirs): Declare.
        * config/vms/vms-c.c (vms_c_register_includes): New function.
        (vms_std_modules): New variable.
        * config/vms/vms.h (TARGET_EXTRA_INCLUDES): Define.
        (vms_c_register_includes): Declare.

2011-11-15  Tristan Gingold  <gingold@adacore.com>

        * c-family/c-pragma.h (pragma_extern_prefix): Declare.
        * c-family/c-pragma.c (pragma_extern_prefix): Make it public.
        * config/vms/vms-c.c (saved_extern_prefix): New variable.
        (vms_pragma_extern_prefix): New function.
        (vms_c_register_pragma): Register vms_pragma_extern_prefix.

2011-11-15  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49868
        * config/avr/avr.h (ADDR_SPACE_PGM): New address spaces.
        (REGISTER_TARGET_PRAGMAS): New define.
        * config/avr/avr-protos.h (avr_mem_pgm_p): New.
        (avr_load_libgcc_p): New.
        (avr_register_target_pragmas): New.
        (asm_output_external_libcall): Remove.
        (avr_log_t): Add field "progmem".  Order alphabetically.
        * config/avr/avr-log.c (avr_log_set_avr_log): Set avr_log.progmem.
        * config/avr/avr-c.c (langhooks.h): New include.
        (avr_register_target_pragmas): New function. Register address
        space __pgm.
        (avr_cpu_cpp_builtins): Add built-in define __PGM.

        * config/avr/avr.c: Include "c-family/c-common.h".
        (TARGET_LEGITIMATE_ADDRESS_P): Remove define.
        (TARGET_LEGITIMIZE_ADDRESS): Remove define.
        (TARGET_ADDR_SPACE_SUBSET_P): Define to...
        (avr_addr_space_subset_p): ...this new static function.
        (TARGET_ADDR_SPACE_CONVERT): Define to...
        (avr_addr_space_convert): ...this new static function.
        (TARGET_ADDR_SPACE_ADDRESS_MODE): Define to...
        (avr_addr_space_address_mode): ...this new static function.
        (TARGET_ADDR_SPACE_POINTER_MODE): Define to...
        (avr_addr_space_pointer_mode): ...this new static function.
        (TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Define to...
        (avr_addr_space_legitimate_address_p): ...this new static function.
        (TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS): Define to...
        (avr_addr_space_legitimize_address): ...this new static function.
        (avr_mode_code_base_reg_class): Handle address spaces.
        (avr_regno_mode_code_ok_for_base_p): Ditto.
        (lpm_addr_reg_rtx, lpm_reg_rtx, all_regs_rtx): New static variables.
        (avr_option_override): Initialize them.
        (output_reload_in_const): Use all_regs_rtx. Fix signedness of loop
        variables.
        (avr_pgm_segment): New static function.
        (avr_decl_pgm_p, avr_mem_pgm_p): New static functions.
        (avr_out_lpm, avr_out_lpm_no_lpmx): New static functions.
        (output_movqi, output_movhi, output_movsisf, avr_out_movpsi): Call
        avr_out_lpm to handle loads from progmem.
        (avr_load_libgcc_p): New static function.
        (avr_progmem_p): Test if decl is in flash.
        (avr_pgm_pointer_const_p): New static function.
        (avr_nonconst_pointer_addrspace): New static function.
        (avr_pgm_check_var_decl): New static function.
        (avr_insert_attributes): Use it.  Change error message to report
        cause (progmem or address space) when code wants to write to flash.
        (avr_section_type_flags): Unset section flag SECTION_BSS for
        data in progmem.

        * config/avr/predicates.md (nop_general_operand): New predicate.
        (nox_general_operand): New predicate.
        * config/avr/avr.md (LPM_REGNO): New define_constant.
        (load<mode>_libgcc): New expander.
        (*load.<mode>.libgcc): New insn.
        (mov<mode>): Handle loads from non-generic AS.
        (movmemhi): Ditto.  Propagate address space information to newly
        created MEM.
        (movqi_insn, *movhi, *movpsi, *movsi, *movsf): Change predicate #1
        to nox_general_operand.
        (ashrqi3, ashrhi3, ashrsi3): Change predicate #1 to
        nop_general_operand.
        (ashlqi3, *ashlqi3, ashlhi3, ashlsi3): Ditto.
        (lshrqi3, *lshrqi3, lshrhi3, lshrsi3): Ditto.
        (split-lpmx): New split.
        (*ashlhi3_const, *ashlsi3_const, *ashrhi3_const, *ashrsi3_const,
        *lshrhi3_const, *lshrsi3_const): Indent, unquote C.

2011-11-15  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * ipa-cp.c (ipa_value_from_jfunc): Make global.
        (ipa_cst_from_jfunc): Remove, use ipa_value_from_jfunc instead.
        (get_indirect_edge_target): Rename, make global.
        (devirtualization_time_bonus, estimate_local_effects,)
        (ipcp_discover_new_direct_edges): Update.
        * ipa-inline-analysis.c (evaluate_conditions_for_edge):
        Generalize to also handle types.  Rename to ...
        (evaluate_properties_for_edge): Use instead of
        evaluate_conditions_for_edge.
        (estimate_edge_devirt_benefit): New function.
        (estimate_calls_size_and_time): Use it.
        (estimate_node_size_and_time, estimate_ipcp_clone_size_and_time,)
        (inline_merge_summary): Update.
        (do_estimate_edge_time, do_estimate_edge_growth): Update.  Calculate
        parameter information at the call site and pass it on to subroutines.
        * tree-inline.c (estimate_num_insns): Distinguish between direct and
        indirect calls.
        (init_inline_once): Set size and time costs or indirect calls.
        * tree-inline.h (eni_weights): Add indirect_call_cost.

2011-11-15  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/51005
        * tree-ssa-tail-merge.c (delete_basic_block_same_succ): Rename to
        mark_basic_block_deleted.
        (update_worklist): Inline purge_bbs.
        (purge_bbs, unlink_virtual_phi, update_vuses, vop_at_entry)
        (delete_block_update_dominator_info): Remove.
        (replace_block_by): Remove update_vops parameter.  Partially evaluate
        for update_vops == false.
        (apply_clusters): Remove update_vops parameter.  Remove update_vops
        argument in replace_block_by call.
        (update_debug_stmts): Remove MAY_HAVE_DEBUG_STMTS test.
        (tail_merge_optimize): Remove update_vops argument to apply_clusters.
        Remove call to purge_bbs.  Add calls to calculate_dominance_info and
        free_dominance_info.  Add MAY_HAVE_DEBUG_STMTS  before calling
        update_debug_stmts.  Mark vop var for renaming, if necessary.

2011-11-15  Bernd Schmidt  <bernds@codesourcery.com>

        PR rtl-optimization/51051
        * cfgrtl.c (cfg_layout_can_merge_blocks_p): Return FALSE if the
        move would cause fallthrough into the exit block.

2011-11-14  Richard Henderson  <rth@redhat.com>

        * config/rs6000/rs6000.c (emit_load_locked): Assert the mode is
        handled.
        (emit_store_conditional): Likewise.
        (rs6000_pre_atomic_barrier, rs6000_post_atomic_barrier): New.
        (rs6000_adjust_atomic_subword): New.
        (rs6000_mask_atomic_subword, rs6000_finish_atomic_subword): New.
        (rs6000_expand_atomic_op): Rename from rs6000_emit_sync; rewrite
        for pre-reload expansion.
        (rs6000_split_compare_and_swap, rs6000_split_compare_and_swapqhi,
        rs6000_expand_compare_and_swapqhi): Merge into ...
        (rs6000_expand_atomic_compare_and_swap): ... here.  New function.
        rs6000_split_lock_test_and_set; expand immediately.  Handle
        QImode and HImode.
        * config/rs6000/rs6000.md (UNSPEC_LWSYNC): Move and rename
        from UNSPECV_LWSYNC.
        * config/rs6000/sync.md (fetchopsi_constr, fetchopdi_constr): Remove.
        (mem_thread_fence): New.
        (hwsync): Rename from memory_barrier.
        (*hwsync): Rename from *sync_internal.
        (lwsync, *lwsync): Mirror hwsync implementation.
        (isync): Don't reference memory.
        (loadsync): New.
        (atomic_load<INT>, atomic_store<INT>): New.
        (ATOMIC): New mode iterator.
        (load_locked<ATOMIC>): Rename from load_locked_<GPR>.
        (store_conditional<ATOMIC>): Rename from store_conditional_<GPR>.
        (sync_compare_and_swap<GPR>): Remove.
        (sync_compare_and_swaphi, sync_compare_and_swapqi): Remove.
        (sync_compare_and_swapqhi_internal): Remove.
        (sync_lock_test_and_set<GPR>): Remove.
        (sync_<FETCHOP><INT1>): Remove.
        (*sync_<FETCHOP>si_internal, *sync_<FETCHOP>di_internal): Remove.
        (sync_nand<INT1>, *sync_nand<GPR>_internal): Remove.
        (sync_old_<FETCHOP><GPR>): Remove.
        (*sync_old_<FETCHOP>si_internal): Remove.
        (*sync_old_<FETCHOP>di_internal): Remove.
        (sync_old_nand<INT1>): Remove.
        (*sync_old_nand<GPR>_internal): Remove.
        (sync_new_<FETCHOP><GPR>): Remove.
        (*sync_new_<FETCHOP>si_internal): Remove.
        (*sync_new_<FETCHOP>di_internal): Remove.
        (sync_new_nand<INT1>): Remove.
        (*sync_new_nand<GPR>_internal): Remove.
        (*atomic_andsi, *atomic_anddi): Remove.
        (*sync_addshort_internal, *sync_subshort_internal): Remove.
        (*sync_andsi_internal, *sync_boolsi_internal): Remove.
        (*sync_boolcshort_internal): Remove.
        (sync_lock_release<INT1>): Remove.
        (atomic_compare_and_swap<INT1>): New.
        (atomic_exchange<INT1>): New.
        (atomic_<FETCHOP><INT1>, atomic_nand<INT1>): New.
        (atomic_fetch_<FETCHOP><INT1>, atomic_fetch_nand<INT1>): New.
        (atomic_<FETCHOP>_fetch<INT1>, atomic_nand_fetch<INT1>): New.

2011-11-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (round<mode>2): Use register_operand for
        operand 1 predicate.
        (round<mode>2_sfix): Ditto.
        (round<mode>2_vec_pack_sfix): Ditto for operand 1 and operand 2.

2011-11-14  Nathan Sidwell  <nathan@acm.org>

        * gcov.c (canonicalize_name): Protect use of S_ISLNK.

2011-11-14  Jan Hubicka  <jh@suse.cz>

        PR target/51126
        * config/i386/i386.c (core cost model): Correct pasto.

2011-11-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/sse.md (round<mode>2_sfix): New expander.
        (round<mode>2_vec_pack_sfix): Ditto.
        (<sse4_1>_round<ssemodesuffix>_sfix<avxsizesuffix>): Ditto.
        (<sse4_1>_round<ssemodesuffix>_vec_pack_sfix<avxsizesuffix>): Ditto.
        * config/i386/builtin-types.def (V4SI_FTYPE_V4SF_ROUND,
        V8SI_FTYPE_V8SF_ROUND, V4SI_FTYPE_V2DF_V2DF_ROUND,
        V8SI_FTYPE_V4DF_V4DF_ROUND): New builtin types.
        * config/i386/i386.c (ix86_builtins): Add
        IX86_BUILTIN_{FLOORPD,CEILPD,ROUNDPD_AZ}_VEC_PACK_SFIX{,256} and
        IX86_BUILTIN_{FLOORPS,CEILPS,ROUNDPS_AZ}_SFIX{,256} defines.
        (bdesc_args): Add __builtin_ia32_{floorpd,ceilpd}_vec_pack_sfix{,256},
        __builtin_ia32_roundpd_az_vec_pack_sfix{,256},
        __builtin_ia32_{floorps,ceilps}_sfix{,256}and
        __builtin_ia32_roundps_az_sfix{,256} descriptions.
        (ix86_expand_sse_round_vec_pack_sfix): New.
        (ix86_expand_args_builtin): Handle V4SI_FTYPE_V4SF_ROUND,
        V8SI_FTYPE_V8SF_ROUND, V4SI_FTYPE_V2DF_V2DF_ROUND and
        V8SI_FTYPE_V4DF_V4DF_ROUND types.  Check last argument of
        CODE_FOR_sse4_1_roundpd_vec_pack_sfix, CODE_FOR_sse4_1_roundps_sfix,
        CODE_FOR_avx_roundpd_vec_pack_sfix256 and CODE_FOR_avx_roundps_sfix256.
        (ix86_builtin_vectorized_function): Handle
        BUILT_IN_{I,L,LL}FLOOR{,F}, BUILT_IN_{I,L,LL}CEIL{,F} and
        BUILT_IN_{I,L,LL}ROUND{,F}

2011-11-14  Jan Hubicka  <jh@suse.cz>

        PR middle-end/50598
        * cgraph.h (varpool_externally_visible_p): Declare.
        (varpool_add_new_variable): Declare.
        * tree-emultls.c (get_emutls_init_templ_addr,
        new_emutls_decl): Use varpool_add_new_variable.
        * ipa.c (varpool_externally_visible_p): Export.
        * varpool.c (varpool_add_new_variable): New function.

2011-11-14  Michael Zolotukhin  <michael.v.zolotukhin@gmail.com>
            Jan Hubicka  <jh@suse.cz>

        * config/i386/i386.h (processor_costs): Add second dimension to
        stringop_algs array.
        * config/i386/i386.c (cost models): Initialize second dimension of
        stringop_algs arrays.
        (core_cost): New costs based on generic64 costs with updated stringop
        values.
        (promote_duplicated_reg): Add support for vector modes, add
        declaration.
        (promote_duplicated_reg_to_size): Likewise.
        (processor_target): Set core costs for core variants.
        (expand_set_or_movmem_via_loop_with_iter): New function.
        (expand_set_or_movmem_via_loop): Enable reuse of the same iters in
        different loops, produced by this function.
        (emit_strset): New function.
        (expand_movmem_epilogue): Add epilogue generation for bigger sizes,
        use SSE-moves where possible.
        (expand_setmem_epilogue): Likewise.
        (expand_movmem_prologue): Likewise for prologue.
        (expand_setmem_prologue): Likewise.
        (expand_constant_movmem_prologue): Likewise.
        (expand_constant_setmem_prologue): Likewise.
        (decide_alg): Add new argument align_unknown.  Fix algorithm of
        strategy selection if TARGET_INLINE_ALL_STRINGOPS is set; Skip sse_loop
        (decide_alignment): Update desired alignment according to chosen move
        mode.
        (ix86_expand_movmem): Change unrolled_loop strategy to use SSE-moves.
        (ix86_expand_setmem): Likewise.
        (ix86_slow_unaligned_access): Implementation of new hook
        slow_unaligned_access.
        * config/i386/i386.md (strset): Enable half-SSE moves.
        * config/i386/sse.md (vec_dupv4si): Add expand for vec_dupv4si.
        (vec_dupv2di): Add expand for vec_dupv2di.

2011-11-14  Dimitrios Apostolou  <jimis@gmx.net>

        PR bootstrap/51094
        PR middle-end/51116
        * config/elfos.h (TARGET_ASM_INTERNAL_LABEL): Remove.
        * varasm.c (default_elf_internal_label): Remove.

2011-11-14  Kai Tietz  <ktietz@redhat.com>

        * gcov.c (generate_results): Add missing semicolon and correct indent.

2011-11-14  Ira Rosen  <ira.rosen@linaro.org>

        PR bootstrap/51112
        * tree-vect-stmts.c (vectorizable_condition): Initialize comp_vectype.

2011-11-14  Mingjie Xing  <mingjie.xing@gmail.com>

        * doc/invoke.texi (Wunused-result): Change @pxref{Variable Attributes}
        to @pxref{Function Attributes}.

2011-11-13  Oleg Endo  <oleg.endo@t-online.de>

        PR target/50694
        * config/sh/sh.h (IS_LITTLE_ENDIAN_OPTION, UNSUPPORTED_SH2A):
        New macros.
        (DRIVER_SELF_SPECS): Use new macros to filter out unsupported options
        taking the default configuration into account.

2011-11-13  Jonathan Wakely  <jwakely.gcc@gmail.com>

        * doc/install.texi (Specific): Fix anchor for
        x86_64-*-solaris2.1[0-9]*.

2011-11-13  Nathan Sidwell  <nathan@acm.org>

        * gcov.c (source_prefix, source_length): New globals.
        (flag_relative_only): Likewise.
        (print_usage, options, process_args): Update.
        (generate_results): Use coverage.name, check
        flag_relative_only. Adjust messages.
        (find_source): Check source_prefix.
        (output_lines): Use coverage.name, adjust messages.
        * doc/gcov.texi (Invoking Gcov): Document new options.