PR target/50740

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

2011-10-21  H.J. Lu  <hongjiu.lu@intel.com>
            Kirill Yukhin  <kirill.yukhin@intel.com>

        * config/i386/driver-i386.c (host_detect_local_cpu): Do cpuid 7 only
        if max_level allows that.

2011-10-21  Bernd Schmidt  <bernds@codesourcery.com>

        * reg-notes.def (DEP_CONTROL): New.
        * sched-ebb.c (add_deps_for_risky_insns): Add a REG_DEP_CONTROL when
        not doing speculation.
        * rtlanal.c (record_hard_reg_sets, find_all_hard_reg_sets,
        record_hard_reg_uses_1, record_hard_reg_uses): New functions.
        * function.c (record_hard_reg_sets, record_hard_reg_uses,
        record_hard_reg_uses_1): Remove; move to rtlanal.c.
        * lists.c (copy_INSN_LIST, concat_INSN_LIST): New functions.
        * haifa-sched.c: Swap includes of "rtl.h" and "hard-reg-set.h".
        (MUST_RECOMPUTE_SPEC_P): New macro.
        (real_insn_for_shadow): New function.
        (cond_clobbered_p, recompute_todo_spec, check_clobbered_conditions,
        toggle_cancelled_flags): New static functions.
        (schedule_insn): Relax an assert to only check for empty hard back
        dependencies.  Skip cancelled dependencies.  Call
        check_clobbered_conditions.
        (copy_insn_list): Remove function, renamed moved to lists.c.
        (save_backtrack_point): Use new spelling copy_INSN_LIST.
        (unschedule_insns_until): Ensure TODO_SPEC is reset properly.
        (restore_last_backtrack_point): Likewise.  Call toggle_cancelled_flags.
        (estimate_insn_tick): Ignore cancelled dependencies.
        (haifa_speculate_insn): Move declaration.
        (try_ready): Move code into recompute_todo_spec and call it.  Tweak
        some asserts.  Ensure predicated patterns are restored if necessary.
        Dump DEP_CONTROL flag.
        (haifa_change_pattern): Merge with sched_change_pattern.
        (sched_change_pattern): Remove function.
        * sched-deps.c (NON_FLUSH_JUMP_KIND, NON_FLUSH_JUMP): Remove.  All
        uses changed to simply not test NON_FLUSH_JUMP_P.
        (ds_to_dk, dk_to_ds, dump_dep, ds_to_dt, dump_ds, check_dep): Handle
        REG_DEP_CONTROL.
        (dep_spec_p): If DO_PREDICATION, REG_DEP_CONTROL is speculative.
        (reg_pending_control_uses, control_dependency_cache): New static
        variables.
        (sched_get_reverse_condition_uncached): New function.
        (sd_find_dep_between): Remove pointless assert.  Look in
        control_dependency_cache.
        (ask_dependency_caches, set_dependency_caches, sd_delete_dep,
        extend_dependency_caches, sched_deps_finish): Handle REG_DEP_CONTROL
        and control_dependency_cache.
        (sd_unresolve_dep): Use dep_spec_p.
        (add_dependence): Now a wrapper around add_dependence_1, handling
        REG_DEP_CONTROL specially.
        (flush_pending_lists): Clear pending_jump_insns.
        (sched_analyze_1): Handle pending_jump_insns like a memory flush.
        (sched_analyze_2): Unconditionally add to pending memory flushes,
        keep previous behaviour but apply it to pending_jump_insns instead.
        (sched_analyze_insn): Defer adding jump reg dependencies using
        reg_pending_control_uses; add them to the control_uses list.  Handle
        pending_jump_insns and control_uses when adding dependence lists.
        (deps_analyze_insn): Update INSN_COND_DEPS.
        (deps_analyze_insn): Add jumps to pending_jump_insns rather than
        last_pending_memory_flush.
        (init_deps): Initialize pending_jump_insns.
        (free_deps): Free control_uses.
        (remove_from_deps): Remove from pending_jump_insns.
        (init_deps_global): Allocate reg_pending_control_uses).
        (finish_deps_global): Free it.
        (add_dependence_1): Renamed from add_dependence.  Handle
        REG_DEP_CONTROL.
        * rtl.h (record_hard_reg_uses, find_all_hard_reg_sets): Declare.
        (copy_INSN_LIST, concat_INSN_LIST): Declare.
        * sched-int.h (struct deps_reg): Add control_uses.
        (struct deps_desc): Add pending_jump_insns.
        (struct _haifa_deps_insn_data): Add cond_deps.
        (struct _haifa_insn_data): Add must_recompute_spec and predicated_pat.
        (INSN_COND_DEPS, PREDICATED_PAT): New macros.
        (BITS_PER_DEP_WEAK): Adjust for two extra bits in the word.
        (DEP_CONTROL): New macro.
        (DEP_TYPES): Include it.
        (HARD_DEP): Adjust definition.
        (DEP_CANCELLED): New macro.
        (enum SCHED_FLAGS): Add DO_PREDICATION.
        (sched_get_reverse_condition_uncached, real_insn_for_shadow): Declare.
        * sched-rgn.c (concat_INSN_LIST): Remove function.
        (deps_join): Handle pending_jump_insns.
        (free_pending_lists): Likewise.
        * config/c6x/c6x.c (c6x_set_sched_flags): Set DO_PREDICATION for final
        schedule.

2011-10-21  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50820
        * config/avr/libgcc.S (__EIND__): New define to 0x3C.
        (__tablejump__): Consistently use EIND for indirect jump/call.
        (__tablejump_elpm__): Ditto.

2011-10-21  Bernd Schmidt  <bernds@codesourcery.com>

        * config/c6x/c6x.md (attr "op_pattern"): New.
        (load_sdata_pic, mov<mode>_insn for QIHIM and SISFVM): Set it.
        * config/c6x/c6x-mult.md.in (mulhi3_VARIANT_, mulhisi3_insn_VARIANT_):
        Likewise.
        * config/c6x/c6x-mult.md: Regenerate.
        * config/c6x/c6x.c: Include "regrename.h".
        (unit_req_table): New typedef.
        (unit_reqs): Use it for the declaration.
        (unit_req_factor, get_unit_reqs, merge_unit_reqs, unit_req_imbalance,
        get_unit_operand_masks, try_rename_operands, reshuffle_units): New
        static functions.
        (count_unit_reqs): New arg reqs.  All callers changed.  Use
        get_unit_reqs, and don't merge here.
        (res_mii): New arg reqs.  All callers changed.  Rewrite to use a loop
        using unit_req_factor.
        (hwloop_optimize): Call reshuffle_units.  Call merge_unit_reqs after
        count_unit_reqs.
        (c6x_reorg): Add reg notes problem, and call df_analyze.
        * Makefile.in ($(out_object_file)): Depend on regrename.h.

2011-10-21  Kai Tietz  <ktietz@redhat.com>

        * fold-const.c (simple_operand_p_2): Handle integral
        casts from boolean-operands.

2011-10-21  Jan Hubicka  <jh@suse.cz>

        * cgraph.c (dump_cgraph_node): Dump alias flag.
        * cgraphunit.c (handle_alias_pairs): Handle weakrefs with
        no destination.
        (get_alias_symbol): New function.
        (output_weakrefs): Output also weakrefs with no destinatoin.
        (lto_output_node): Output weakref alias flag when at function boundary.

2011-10-21  Andrew Stubbs  <ams@codesourcery.com>

        PR target/50809
        * config/arm/driver-arm.c (vendors): Make static.

2011-10-21  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_emit_swdivsf): Force b into register.
        (ix86_emit_swsqrtsf): Force a into register.

2011-10-20  Mike Stump  <mikestump@comcast.net>

        * regcprop.c (copyprop_hardreg_forward_1): Update recog_data
        after validate_change wipes it out.

2011-10-20  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.md ("vec_permv16qi"): Reduce selector modulo 32
        before using the shufb instruction.

2011-10-20  Kirill Yukhin  <kirill.yukhin@intel.com>

        PR target/50766
        * config/i386/i386.md (bmi_bextr_<mode>): Update register/
        memory operand order.
        (bmi2_bzhi_<mode>3): Ditto.
        (bmi2_pdep_<mode>3): Ditto.
        (bmi2_pext_<mode>3): Ditto.

2011-10-20  Richard Henderson  <rth@redhat.com>

        * target.def (vec_perm_const_ok): Rename from builtin_vec_perm_ok.
        * optabs.c (can_vec_perm_expr_p): Update to match.
        (expand_vec_perm_expr): Likewise.
        * config/i386/i386.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Rename
        from TARGET_VECTORIZE_BUILTIN_VEC_PERM_OK.
        * doc/tm.texi.in: Likewise.

2011-10-20  Sergey Ostanevich  <sergos.gnu@gmail.com>

        PR target/50572
        * config/i386/i386.c (processor_target_table): Change Atom
        align_loops_max_skip to 15.

2011-10-20  Richard Henderson  <rth@redhat.com>

        * target.def (builtin_vec_perm): Remove.
        * doc/tm.texi.in (TARGET_VECTORIZE_BUILTIN_VEC_PERM): Remove.

        * config/i386/i386.c (ix86_expand_vec_perm_builtin): Remove.
        (IX86_BUILTIN_VEC_PERM_*): Remove.
        (bdesc_args): Remove vec_perm builtins
        (ix86_expand_builtin): Likewise.
        (ix86_expand_vec_perm_const_1): Rename from
        ix86_expand_vec_perm_builtin_1.
        (extract_vec_perm_cst): Merge into...
        (ix86_vectorize_vec_perm_const_ok): ... here.  Rename from
        ix86_vectorize_builtin_vec_perm_ok.
        (TARGET_VECTORIZE_BUILTIN_VEC_PERM): Remove.

        * config/rs6000/rs6000.c (rs6000_builtin_vec_perm): Remove.
        (TARGET_VECTORIZE_BUILTIN_VEC_PERM): Remove.

        * config/spu/spu.c (spu_builtin_vec_perm): Remove.
        (TARGET_VECTORIZE_BUILTIN_VEC_PERM): Remove.

2011-10-20  Uros Bizjak  <ubizjak@gmail.com>

        PR target/47989
        * config/i386/i386.h (RECIP_MASK_DEFAULT): New define.
        * config/i386/i386.op (recip_mask): Initialize with RECIP_MASK_DEFAULT.
        * doc/invoke.texi (ix86 Options, -mrecip): Document that GCC
        implements vectorized single float division and vectorized sqrtf(x)
        with reciprocal sequence with additional Newton-Raphson step with
        -ffast-math.

2011-10-20  Dodji Seketeli  <dodji@redhat.com>

        * ggc-zone.c (ggc_internal_alloc_zone_stat): Rename
        ggc_alloced_size_order_for_request into ggc_round_alloc_size like
        it was done in ggc-page.c.

        PR other/50659
        * doc/cppopts.texi: Use @smallexample/@end smallexample in
        documentation for -fdebug-cpp instead of @quotation/@end quotation
        that is not supported by contrib/texi2pod.pl.

2011-10-19  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (inline_small_functions): Always update all calles after
        inlining.

2011-10-19  Jan Hubicka  <jh@suse.cz>

        PR bootstrap/50709
        * ipa-inline.c (inline_small_functions): Fix checking code to not make
        effect on fibheap stability.

2011-10-20  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * config/m68k/t-linux (M68K_MLIB_CPU): Add ColdFire CPUs.

2011-10-20  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/50106
        * config/arm/arm.c (thumb_unexpanded_epilogue): Handle return
        reg size from 1-3.

2011-10-20  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-loop-im.c (stmt_cost): Add WIDEN_*, FMA_EXPR
        and rotates to the set of expensive operations.

2011-10-19  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.c (sparc_expand_move): Use can_create_pseudo_p.
        (sparc_emit_set_const32): Likewise.
        (sparc_emit_set_const64_longway): Likewise.
        (sparc_emit_set_const64): Likewise.
        (sparc_legitimize_pic_address): Likewise.
        (memory_ok_for_ldd): Likewise.

2011-10-20  Dehao Chen  <dehao@google.com>

        * profile.c (compute_branch_probabilities): Compute and dump the
        overlap between the static estimation and the instrumentation profile.
        (OVERLAP_BASE): New macro.
        (compute_frequency_overlap): New function

2011-10-19  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (expand_vec_perm_vpshufb2_vpermq_even_odd): Use
        d->op1 instead of d->op0 for the second vpshufb.
        (expand_vec_perm_even_odd_1): For V8SImode fix vpshufd immediates.
        (ix86_expand_vec_perm_const): If mask indicates two operands are
        needed, but both are the same and expanding them as d.op0 == d.op1
        failed, retry with d.op0 != d.op1.
        (ix86_expand_vec_perm_builtin): Likewise.  Handle sorry printing
        also for d.nelt == 32.

        PR middle-end/50754
        * cfgexpand.c (expand_debug_expr): Handle WIDEN_LSHIFT_EXPR, ignore
        VEC_PERM_EXPR.

2011-10-19  Bernd Schmidt  <bernds@codesourcery.com>

        * regrename.h: New file.
        * regrename.c: Include it.  Also include "emit-rtl.h".
        (struct du_head, struct du_chain, du_head_p DEF_VEC and
        DEF_VEC_ALLOC_P): Move to regrename.h.
        (do_replace): Remove declaration.
        (insn_rr): New variable.
        (cur_operand): New static variable.
        (regrename_chain_from_id): Renamed from chain_from_id and no longer
        static.  All callers changed.
        (record_operand_use): New static function.
        (scan_rtx_reg): Use it.
        (find_best_rename_reg): New function, broken out of rename_chains.
        (rename_chains): Use it.  Don't update chain regno and nregs here, ...
        (regrename_do_replace): ... do it here instead.  Renamed from
        do_replace, and no longer static.  All callers changed.
        (regrename_analyze): No longer static.  New arg bb_mask.
        All callers changed.  If bb_mask is nonzero, use it to limit the
        number of basic blocks we analyze.  If we failed to analyze a block,
        clear insn operand data.
        (record_out_operands): New arg insn_info.  Update cur_operand if it is
        nonnull.
        (build_def_use): If insn_rr is nonnull, pass an insn_info to
        record_out_operands, and update cur_operand here as well.
        (regrename_init, regrename_finish): New functions.
        (regrename_optimize): Use them.
        * Makefile.in (regrename.o): Adjust dependencies.

2011-10-19  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/50769
        * tree-ssa-tail-merge.c (replace_block_by): Calculate phi_vuse2
        unconditionally.  Handle case that phi_vuse2 is not an SSA_NAME.  Add
        dummy argument .MEM to phi when increasing number of arguments of phi by
        redirecting edges to the block with phi.

2011-10-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR bootstrap/50777
        * configure.ac: Save and restore CXXFLAGS around
        gcc_AC_CHECK_DECLS uses.
        Check for madvise() declaration with g++ if --enable-build-with-cxx.
        * configure: Regenerate.
        * config.in: Regenerate.
        * ggc-page.c (USING_MADVISE): Also check HAVE_DECL_MADVISE.

2011-10-19  Alexandre Oliva  <aoliva@redhat.com>

        PR debug/49310
        * var-tracking.c (loc_exp_dep, onepart_aux): New structs.
        (variable_part): Replace offset with union.
        (enum onepart_enum, onepart_enum_t): New.
        (variable_def): Drop cur_loc_changed, add onepart.
        (value_chain_def, const_value_chain): Remove.
        (VAR_PART_OFFSET, VAR_LOC_1PAUX): New macros, with checking.
        (VAR_LOC_DEP_LST, VAR_LOC_DEP_LSTP): New macros.
        (VAR_LOC_FROM, VAR_LOC_DEPTH, VAR_LOC_DEP_VEC): Likewise.
        (value_chain_pool, value_chains): Remove.
        (dropped_values): New.
        (struct parm_reg): Only if HAVE_window_save.
        (vt_stack_adjustments): Don't record register arguments.
        (dv_as_rtx): New.
        (dv_onepart_p): Return a onepart_enum_t.
        (onepart_pool): New.
        (dv_pool): Remove.
        (dv_from_rtx): New.
        (variable_htab_free): Release onepart aux data.  Reset flags.
        (value_chain_htab_hash, value_chain_htab_eq): Remove.
        (unshare_variable): Use onepart field.  Propagate onepart aux
        data or offset.  Drop cur_loc_changed.
        (val_store): Cope with NULL insn.  Rephrase dump output.  Check
        for unsuitable locs.  Add FIXME on using cselib locs.
        (val_reset): Remove FIXME of unfounded concerns.
        (val_resolve): Check for unsuitable locs.  Add FIXME on using
        cselib locs.
        (variable_union): Use onepart field, adjust access to offset.
        (NO_LOC_P): New.
        (VALUE_CHANGED, DECL_CHANGED): Update doc.
        (set_dv_changed): Clear NO_LOC_P when changed.
        (find_loc_in_1pdv): Use onepart field.
        (intersect_loc_chains): Likewise.
        (unsuitable_loc): New.
        (loc_cmp): Keep ENTRY_VALUEs at the end of the loc list.
        (add_value_chain, add_value_chains): Remove.
        (add_cselib_value_chains, remove_value_chain): Likewise.
        (remove_value_chains, remove_cselib_value_chains): Likewise.
        (canonicalize_loc_order_check): Use onepart.  Drop cur_loc_changed.
        (canonicalize_values_star, canonicalize_vars_star): Use onepart.
        (variable_merge_over_cur): Likewise.  Adjust access to offset.
        Drop cur_loc_changed.
        (variable_merge_over_src): Use onepart field.
        (remove_duplicate_values): Likewise.
        (variable_post_merge_new_vals): Likewise.
        (find_mem_expr_in_1pdv): Likewise.
        (dataflow_set_preserve_mem_locs): Likewise.  Drop cur_loc_changed
        and value chains.
        (dataflow_set_remove_mem_locs): Likewise.  Use VAR_LOC_FROM.
        (variable_different_p): Use onepart field.  Move onepart test out
        of the loop.
        (argument_reg_set): Drop.
        (add_uses, add_stores): Preserve but do not record in dynamic
        tables equivalences for ENTRY_VALUEs and CFA_based addresses.
        Avoid unsuitable address expressions.
        (EXPR_DEPTH): Unlimit.
        (EXPR_USE_DEPTH): Repurpose PARAM_MAX_VARTRACK_EXPR_DEPTH.
        (prepare_call_arguments): Use DECL_RTL_IF_SET.
        (dump_var): Adjust access to offset.
        (variable_from_dropped, recover_dropped_1paux): New.
        (variable_was_changed): Drop cur_loc_changed.  Use onepart.
        Preserve onepart aux in empty_var.  Recover empty_var and onepart
        aux from dropped_values.
        (find_variable_location_part): Special-case onepart.  Adjust
        access to offset.
        (set_slot_part): Use onepart.  Drop cur_loc_changed.  Adjust
        access to offset.  Initialize onepaux.  Drop value chains.
        (delete_slot_part): Drop value chains.  Use VAR_LOC_FROM.
        (VEC (variable, heap), VEC (rtx, stack)): Define.
        (expand_loc_callback_data): Drop dummy, cur_loc_changed,
        ignore_cur_loc.  Add expanding, pending, depth.
        (loc_exp_dep_alloc, loc_exp_dep_clear): New.
        (loc_exp_dep_insert, loc_exp_dep_set): New.
        (notify_dependents_of_resolved_value): New.
        (update_depth, vt_expand_var_loc_chain): New.
        (vt_expand_loc_callback): Revamped.
        (resolve_expansions_pending_recursion): New.
        (INIT_ELCD, FINI_ELCD): New.
        (vt_expand_loc): Use the new macros above.  Drop ignore_cur_loc
        parameter, adjust all callers.
        (vt_expand_loc_dummy): Drop.
        (vt_expand_1pvar): New.
        (emit_note_insn_var_location): Operate on non-debug decls only.
        Revamp multi-part cur_loc recomputation and one-part expansion.
        Drop cur_loc_changed.  Adjust access to offset.
        (VEC (variable, heap)): Drop.
        (changed_variables_stack, changed_values_stack): Drop.
        (check_changed_vars_0, check_changed_vars_1): Remove.
        (check_changed_vars_2, check_changed_vars_3): Remove.
        (values_to_stack, remove_value_from_changed_variables): New.
        (notify_dependents_of_changed_value, process_changed_values): New.
        (emit_notes_for_changes): Revamp onepart updates.
        (emit_notes_for_differences_1): Use onepart.  Drop cur_loc_changed
        and value chains.  Propagate onepaux.  Recover empty_var and onepaux
        from dropped_values.
        (emit_notes_for_differences_2): Drop value chains.
        (emit_notes_in_bb): Adjust.
        (vt_emit_notes): Drop value chains, changed_variables_stack.
        Initialize and release dropped_values.
        (create_entry_value): Revamp.
        (vt_add_function_parameter): Use new interface.
        (note_register_arguments): Remove.
        (vt_initialize): Drop value chains and register arguments.
        (vt_finalize): Drop value chains.  Release windowed_parm_regs only
        if HAVE_window_save.
        * rtl.h: Document various pass-local uses of RTL flags.
        * tree.h (DECL_RTL_KNOWN_SET): New.
        * doc/invoke.texi (param max-vartrack-expr-depth): Update
        description and default.

2011-10-19  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50447
        * config/avr/avr.md (cc): New alternative out_plus_noclobber.
        (adjust_len): Ditto.
        (addhi3): Don't pipe through short; use gen_int_mode instead.
        Prior to reload, expand to gen_addhi3_clobber.
        (*addhi3): Use avr_out_plus_noclobber if applicable, use
        out_plus_noclobber in cc and adjust_len attribute.
        (addhi3_clobber): 2 new RTL peepholes.
        (addhi3_clobber): New insn.
        * config/avr/avr-protos.h: (avr_out_plus_noclobber): New prototype.
        * config/avr/avr.c (avr_out_plus_noclobber): New function.
        (notice_update_cc): Handle CC_OUT_PLUS_NOCLOBBER.
        (avr_out_plus_1): Tweak if only MSB is +/-1 and other bytes are 0.
        Set cc0 to set_zn for adiw on 16-bit values.
        (adjust_insn_length): Handle ADJUST_LEN_OUT_PLUS_NOCLOBBER.
        (expand_epilogue): No need to add 0 to frame_pointer_rtx.

2011-10-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50780
        * tree-ssa-forwprop.c (forward_propagate_into_cond): Verify
        the condition is properly gimple before using it.
        * tree-eh (stmt_could_throw_1_p): Properly extract the
        operation type from comparisons.

2011-10-19  Roland Stigge  <stigge@antcom.de>

        PR translation/48638
        * plugin.c (add_new_plugin): Fix typo in fatal_error message.

2011-10-19  Roland Stigge  <stigge@antcom.de>

        PR translation/49517
        * config/rx/rx.c (rx_print_operand): Fix typo in warning message.

2011-10-19  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50768
        * gimple-fold.c (gimplify_and_update_call_from_tree): Rewrite.

2011-10-19  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/50340
        * sel-sched-ir.c (update_target_availability): LHS register
        availability is not known if the unavailable LHS of the other
        expression is a different register.

2011-10-19  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        PR target/50310
        * config/spu/spu.c (spu_emit_vector_compare): Support unordered
        floating-point comparisons.

2011-10-19  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (handle_alias_pairs): Also handle wekref with
        destination declared.
        (output_weakrefs): New function.
        * varpool.c (varpool_create_variable_alias): Handle external aliases.

2011-10-19  Jakub Jelinek  <jakub@redhat.com>

        * dwarf2out.c (loc_descriptor): For SUBREG pass SUBREG_REG's mode as
        second argument instead of mode.

2011-10-18  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_expand_vec_perm): In merge_two use
        mode SUBREG of operands[0] as target.
        (valid_perm_using_mode_p): Don't ignore higher bits of d->perm.
        (expand_vec_pshufb): For V8SImode vmode emit avx2_permvarv8si.
        (expand_vec_perm_1): Handle identity and some broadcast
        permutations.
        (expand_vec_perm_interleave2): Handle also 32-byte modes, using
        vperm2[fi]128 or vpunpck[lh]* followed by single insn permutation.
        For d->testing_p return true earlier to avoid creating more GC
        garbage.
        (expand_vec_perm_vpermq_perm_1): New function.
        (expand_vec_perm_vpshufb2_vpermq): For d->testing_p return true
        earlier to avoid creating more GC garbage.  Fix handling of
        V16HImode.  Avoid some SUBREGs in SET_DEST.
        (expand_vec_perm_broadcast_1): Return false for 32-byte integer
        vector modes.
        (expand_vec_perm_vpshufb4_vpermq2): New function.
        (ix86_expand_vec_perm_builtin_1): Call expand_vec_perm_vpermq_perm_1
        and expand_vec_perm_vpshufb4_vpermq2.

2011-10-18  Andrew Stubbs  <ams@codesourcery.com>

        * config/arm/driver-arm.c (host_detect_local_cpu): Close the file
        before exiting.

2011-10-18  Andrew Stubbs  <ams@codesourcery.com>

        PR tree-optimization/50717
        * tree-ssa-math-opts.c (is_widening_mult_p): Remove the 'type'
        parameter.  Calculate 'type' from stmt.
        (convert_mult_to_widen): Update call the is_widening_mult_p.
        (convert_plusminus_to_widen): Likewise.

2011-10-18  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/spu/spu.c (struct machine_function): New data structure.
        (spu_init_machine_status): New function.
        (spu_option_override): Install it.
        (get_pic_reg): Set and use cfun->machine->pic_reg.
        (spu_split_immediate): Do not set crtl->uses_pic_offset_table.
        (need_to_save_reg): Use cfun->machine->pic_reg instead of
        checking crtl->uses_pic_offset_table.
        (spu_expand_prologue): Likewise.

2011-10-18  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/50735
        * function.c (gimplify_parameters): Use create_tmp_var instead of
        create_tmp_reg.  If parm is not TREE_ADDRESSABLE and type is complex
        or vector type, set DECL_GIMPLE_REG_P.

2011-10-18  Andrew Stubbs  <ams@codesourcery.com>

        * config.host (arm*-*-linux*): Add driver-arm.o and x-arm.
        * config/arm/arm.opt: Add 'native' processor_type and
        arm_arch enum values.
        * config/arm/arm.h (host_detect_local_cpu): New prototype.
        (EXTRA_SPEC_FUNCTIONS): New define.
        (MCPU_MTUNE_NATIVE_SPECS): New define.
        (DRIVER_SELF_SPECS): New define.
        * config/arm/driver-arm.c: New file.
        * config/arm/x-arm: New file.
        * doc/invoke.texi (ARM Options): Document -mcpu=native,
        -mtune=native and -march=native.

2011-10-18  Alexander Monakov  <amonakov@ispras.ru>

        PR rtl-optimization/50205
        * sel-sched.c (count_occurrences_1): Simplify on the assumption that
        p->x is a register.  Forbid substitution when the same register is
        found in a different mode.
        (count_occurrences_equiv): Assert that 'what' is a register.

2011-10-18  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50767
        * tree-ssa-pre.c (create_expression_by_pieces): Update the
        folded statement.

2011-10-18  Julian Brown  <julian@codesourcery.com>

        * config/arm/arm.c (arm_block_move_unaligned_straight)
        (arm_adjust_block_mem, arm_block_move_unaligned_loop)
        (arm_movmemqi_unaligned): New.
        (arm_gen_movmemqi): Support unaligned block copies.

2011-10-18  Ira Rosen  <ira.rosen@linaro.org>

        * doc/md.texi (vec_widen_ushiftl_hi, vec_widen_ushiftl_lo,
        vec_widen_sshiftl_hi, vec_widen_sshiftl_lo): Document.
        * tree-pretty-print.c (dump_generic_node): Handle WIDEN_LSHIFT_EXPR,
        VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
        (op_code_prio): Likewise.
        (op_symbol_code): Handle WIDEN_LSHIFT_EXPR.
        * optabs.c (optab_for_tree_code): Handle
        VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
        (init-optabs): Initialize optab codes for vec_widen_u/sshiftl_hi/lo.
        * optabs.h (enum optab_index): Add OTI_vec_widen_u/sshiftl_hi/lo.
        * genopinit.c (optabs): Initialize the new optabs.
        * expr.c (expand_expr_real_2): Handle
        VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
        * gimple-pretty-print.c (dump_binary_rhs): Likewise.
        * tree-vectorizer.h (NUM_PATTERNS): Increase to 8.
        * tree.def (WIDEN_LSHIFT_EXPR, VEC_WIDEN_LSHIFT_HI_EXPR,
        VEC_WIDEN_LSHIFT_LO_EXPR): New.
        * cfgexpand.c (expand_debug_expr): Handle new tree codes.
        * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Add
        vect_recog_widen_shift_pattern.
        (vect_handle_widen_mult_by_const): Rename...
        (vect_handle_widen_op_by_const): ...to this.  Handle shifts.
        Add a new argument, update documentation.
        (vect_recog_widen_mult_pattern): Assume that only second
        operand can be constant.  Update call to
        vect_handle_widen_op_by_const.
        (vect_recog_over_widening_pattern): Fix typo.
        (vect_recog_widen_shift_pattern): New.
        * tree-vect-stmts.c (vectorizable_type_promotion): Handle
        widening shifts.
        (supportable_widening_operation): Likewise.
        * tree-inline.c (estimate_operator_cost): Handle new tree codes.
        * tree-vect-generic.c (expand_vector_operations_1): Likewise.
        * tree-cfg.c (verify_gimple_assign_binary): Likewise.
        * config/arm/neon.md (neon_vec_<US>shiftl_<mode>): New.
        (vec_widen_<US>shiftl_lo_<mode>, neon_vec_<US>shiftl_hi_<mode>,
        vec_widen_<US>shiftl_hi_<mode>, neon_vec_<US>shift_left_<mode>):
        Likewise.
        * config/arm/predicates.md (const_neon_scalar_shift_amount_operand):
        New.
        * config/arm/iterators.md (V_innermode): New.
        * tree-vect-slp.c (vect_build_slp_tree): Require same shift operand
        for widening shift.

2011-10-18  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.h (struct pt_solution): Remove
        vars_contains_restrict member.
        (pt_solutions_same_restrict_base): Remove.
        (pt_solution_set): Adjust.
        * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Remove
        vars_contains_restrict handling.
        (dump_points_to_solution): Likewise.
        (ptr_derefs_may_alias_p): Do not call pt_solutions_same_restrict_base.
        * tree-ssa-structalias.c (struct variable_info): Remove is_restrict_var
        field.
        (new_var_info): Do not initialize it.
        (ipa_escaped_pt): Adjust.
        (make_constraint_from_restrict): Make the tag global.
        (make_constraint_from_global_restrict): New function.
        (make_constraint_from_heapvar): Remove.
        (create_variable_info_for): Do not make restrict vars point
        to NONLOCAL.
        (intra_create_variable_infos): Likewise.
        (find_what_var_points_to): Remove vars_contains_restrict handling.
        (pt_solution_set): Adjust.
        (pt_solution_ior_into): Likewise.
        (pt_solutions_same_restrict_base): Remove.
        (compute_points_to_sets): Do not test is_restrict_var.
        * cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
        * gimple-pretty-print.c (pp_points_to_solution): Likewise.

2011-10-18  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/50672
        * tree-ssa-dce.c (mark_virtual_operand_for_renaming): New function,
        factored out of ...
        (mark_virtual_phi_result_for_renaming): Use
        mark_virtual_operand_for_renaming.
        * tree-flow.h (mark_virtual_operand_for_renaming): Declare.
        * tree-ssa-tail-merge.c (release_last_vdef): New function.
        (purge_bbs): Add update_vops parameter.  Call release_last_vdef for each
        deleted basic block.
        (tail_merge_optimize): Add argument to call to purge_bbs.

2011-10-18  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50716
        * expr.c (get_object_or_type_alignment): New function.
        (expand_assignment): Use it.
        (expand_expr_real_1): Likewise.

2011-10-18  Dodji Seketeli  <dodji@redhat.com>

        PR bootstrap/50760
        * input.c (dump_line_table_statistics): Use long, not size_t.

2011-10-17  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.md (in_call_delay): Fix formatting issues.

2011-10-17  Simon Baldwin  <simonb@google.com>
            Ian Lance Taylor  <iant@google.com>

        * configure.ac: Add --with-native-system-header-dir.  Set and
        substitute NATIVE_SYSTEM_HEADER_DIR.  Use native_system_header
        when setting target_header_dir.
        * config.gcc: Always set native_system_header_dir.
        (*-*-gnu*): Set native_system_header_dir.  Don't use t-gnu.
        (i[34567]86-pc-msdosdjgpp*): Set native_system_header_dir.  Don't
        use i386/t-djgpp.
        (i[34567]86-*-mingw* | x86_64-*-mingw*): Set
        native_system_header_dir.
        (spu-*-elf*): Set native_system_header_dir.
        * Makefile.in (NATIVE_SYSTEM_HEADER_DIR): Set to
        @NATIVE_SYSTEM_HEADER_DIR@.
        (PREPROCESSOR_DEFINES): Define NATIVE_SYSTEM_HEADER_DIR.
        * cppdefault.c (STANDARD_INCLUDE_DIR): Don't define.
        (NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
        STANDARD_INCLUDE_COMPONENT.
        (cpp_include_defaults): Don't use SYSTEM_INCLUDE_DIR.  Rename
        STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
        * system.h: Poison SYSTEM_INCLUDE_DIR, STANDARD_INCLUDE_DIR, and
        STANDARD_INCLUDE_COMPONENT.
        * config/i386/t-mingw32 (NATIVE_SYSTEM_HEADER_DIR): Remove.
        * config/i386/t-mingw-w32: Likewise.
        * config/i386/t-mingw-w64: Likewise.
        * config/spu/t-spu-elf: Likewise.
        * config/i386/t-djgpp: Remove.
        * config/t-gnu: Remove.
        * config/i386/mingw32.h (STANDARD_INCLUDE_DIR): Don't define.
        (NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
        STANDARD_INCLUDE_COMPONENT.
        * config/i386/djgpp.h (STANDARD_INCLUDE_DIR): Don't define.
        * config/spu/spu-elf.h: Likewise.
        * config/vms/xm-vms.h: Likewise.
        * config/gnu.h: Likewise.
        * config/openbsd.h (INCLUDE_DEFAULTS): Change STANDARD_INCLUDE_DIR
        and STANDARD_INCLUDE_COMPONENT to NATIVE_SYSTEM_HEADER_DIR and
        NATIVE_SYSTME_HEADER_COMPONENT.
        * doc/install.texi (Configuration): Document
        --with-native-system-header-dir.  Mention it in the documentation
        for --with-sysroot and --with-build-sysroot.
        * doc/tm.texi.in (Driver): Don't document SYSTEM_INCLUDE_DIR or
        STANDARD_INCLUDE_DIR.  Rename STANDARD_INCLUDE_COMPONENT to
        NATIVE_SYSTEM_HEADER_COMPONENT.  Rename uses of
        STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
        * doc/fragments.texi (Target Fragment): Don't document
        NATIVE_SYSTEM_HEADER_DIR.
        * configure, doc/tm.texi: Rebuild.

2011-10-17  Richard Henderson  <rth@redhat.com>

        * config/sparc/sparc.md: Use register_or_zero_operand where rJ
        is the constraint.

        * config/sparc/sparc.md (vec_perm_constv8qi, vec_perm<mode>): New
        patterns.
        * config/sparc/sparc.c (sparc_expand_vec_perm_bmask): New function.
        * config/sparc/sparc-protos.h (sparc_expand_vec_perm_bmask): Declare.

2011-10-17  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc-modes.def: Add single entry vector modes for
        DImode and SImode.
        * config/sparc/sparc.md (V32, V32I, V64, V64I, V64N8): Delete
        mode iterators.
        (mov<V32:mode>): Revert back to plain SFmode pattern.
        (*movsf_insn): Likewise.
        (mov<V64:mode>): Revert back to plain DFmode pattern.
        (*movdf_insn_sp32): Likewise.
        (*movdf_insn_sp32_v9): Likewise.
        (*movdf_insn_sp64): Likewise.
        (V64 mode splitters) Likewise.
        (addsi3): Remove VIS alternatives.
        (subsi3): Likewise.
        (and<V64I:mode>3): Revert to DImode only pattern.
        (and<V64I:mode>3_sp32): Likewise.
        (*and<V64I:mode>3_sp64): Likewise.
        (and<V32I:mode>3): Likewise.
        (*and_not_<V64I:mode>_sp32): Likewise.
        (*and_not_<V64I:mode>_sp64): Likewise.
        (*and_not_<V32I:mode>): Likewise.
        (ior<V64I:mode>3): Likewise.
        (*ior<V64I:mode>3_sp32): Likewise.
        (*ior<V64I:mode>3_sp64): Likewise.
        (ior<V32I:mode>3): Likewise.
        (*or_not_<V64I:mode>_sp32): Likewise.
        (*or_not_<V64I:mode>_sp64): Likewise.
        (*or_not_<V32I:mode>): Likewise.
        (xor<V64I:mode>3): Likewise.
        (*xor<V64I:mode>3_sp32): Likewise.
        (*xor<V64I:mode>3_sp64): Likewise.
        (xor<V32I:mode>3): Likewise.
        (V64I mode splitters): Likewise.
        (*xor_not_<V64I:mode>_sp32): Likewise.
        (*xor_not_<V64I:mode>_sp64): Likewise.
        (*xor_not_<V32I:mode>): Likewise.
        (one_cmpl<V64I:mode>2): Likewise.
        (*one_cmpl<V64I:mode>2_sp32): Likewise.
        (*one_cmpl<V64I:mode>2_sp64): Likewise.
        (one_cmpl<V32I:mode>2): Likewise.
        (VM32, VM64, VMALL): New mode iterators.
        (vbits, vconstr, vfptype): New mode attributes.
        (mov<VMALL:mode>): New expander.
        (*mov<VM32:mode>_insn): New insn.
        (*mov<VM64:mode>_insn_sp64): New insn.
        (*mov<VM64:mode>_insn_sp32): New insn, and associated splitter
        specifically for the register to memory case.
        (vec_init<mode>): New expander.
        (VADDSUB): New mode iterator.
        (<plusminus_insn>v2si3, <plusminus_insn>v2hi3): Remove and replace
        with...
        (<plusminus_insn><mode>3): New consolidated pattern.
        (VL): New mode iterator for logical operations.
        (vlsuf): New more attribute.
        (vlop): New code iterator.
        (vlinsn, vlninsn): New code attributes.
        (<code><mode>3): New insn to non-negated vector logical ops.
        (*not_<code><mode>3): Likewise for negated variants.
        (*nand<mode>_vis): New insn.
        (vlnotop): New code iterator.
        (*<code>_not1<mode>_vis, *<code>_not2<mode>_vis): New insns.
        (one_cmpl<mode>2): New insn.
        (faligndata<V64I:mode>_vis): Rewrite to use VM64 iterator.
        (bshuffle<VM64:mode>_vis): Likewise.
        (v<vis3_shift_patname><mode>3): Use GCM mode iterator.
        (fp<plusminus_insn>64_vis): Use V1DI mode.
        (VASS mode iterator): Use V1SI not SI mode.
        * config/sparc/sparc.c (sparc_vis_init_builtins): Account for
        single-entry vector mode changes.
        (sparc_expand_builtin): Likewise.
        (sparc_expand_vector_init): New function.
        * config/sparc/sparc-protos.h (sparc_expand_vector_init): Declare.

2011-10-17  Kai Tietz  <ktietz@redhat.com>

        * fold-const.c (simple_operand_p_2): New function.
        (fold_truthop): Rename to
        (fold_truth_andor_1): function name.
        Additionally remove branching creation for logical and/or.
        (fold_truth_andor): Handle branching creation for logical and/or here.

2011-10-17  Andi Kleen  <ak@linux.intel.com>

        * ggc-page.c (USING_MADVISE): Adjust ifdef to check for USING_MMAP.

2011-10-17  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.h (ASSEMBLER_DIALECT): Remove.
        * config/avr/avr.md (mcu_have_movw, mcu_mega): Remove attributes.
        (adjust_len): Add alternative "call".
        (isa, enabled): New insn attributes.
        (length): Use match_test with AVR_HAVE_JMP_CALL instead of
        mcu_mega attribute.
        (*sbrx_branch<mode>): Ditto.
        (*sbrx_and_branch<mode>): Ditto.
        (*sbix_branch): Ditto.
        (*sbix_branch_bit7): Ditto.
        (*sbix_branch_tmp): Ditto.
        (*sbix_branch_tmp_bit7): Ditto.
        (jump): Ditto.
        (negsi2): Use attribute "isa" instead of assembler dialect.
        (extendhisi2): Ditto.
        (call_insn, call_value_insn): Set adjust_len attribute.
        (indirect_jump): Indent to coding rules.
        (call_prologue_saves): Use isa attribute instead of mcu_mega.
        (epilogue_restores): Ditto.  Fix setting of SP as described in the
        RTX pattern.
        (*indirect_jump): Fusion of *jcindirect_jump, *njcindirect_jump
        and *indirect_jump_avr6.
        (*tablejump): Fusion of *tablejump_rjmp and *tablejump_lib.
        (*jcindirect_jump, *njcindirect_jump, *indirect_jump_avr6): Remove.
        (*tablejump_rjmp, *tablejump_lib): Remove.
        * config/avr/avr.c (adjust_insn_length): Handle ADJUST_LEN_CALL.

2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/50757
        * doc/invoke.texi ([Wnonnull]): Update.

2011-10-17  Richard Henderson  <rth@redhat.com>

        PR 50746
        * optabs.c (expand_vec_perm_expr): Fix indexing error.

2011-10-17  Sergio Durigan Junior  <sergiodj@redhat.com>

        * configure.ac: Display `yes' if the SystemTap header has been found.
        * configure: Regenerate.

2011-10-08  Andi Kleen  <ak@linux.intel.com>

        PR other/50636
        * config.in, configure: Regenerate.
        * configure.ac (madvise): Add to AC_CHECK_FUNCS.
        * ggc-page.c (USING_MADVISE): Add.
        (page_entry): Add discarded field.
        (alloc_page): Check for discarded pages.
        (release_pages): Add USING_MADVISE branch.

2011-10-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50729
        * tree-vrp.c (extract_range_from_unary_expr_1): Remove redundant test.
        (simplify_conversion_using_ranges): Properly test the
        intermediate result.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * ggc.h (ggc_round_alloc_size): Declare new public entry point.
        * ggc-none.c (ggc_round_alloc_size): New public stub function.
        * ggc-page.c (ggc_alloced_size_order_for_request): New static
        function.  Factorized from ggc_internal_alloc_stat.
        (ggc_round_alloc_size): New public function.  Uses
        ggc_alloced_size_order_for_request.
        (ggc_internal_alloc_stat): Use ggc_alloced_size_order_for_request.
        * ggc-zone.c (ggc_round_alloc_size): New public function extracted
        from ggc_internal_alloc_zone_stat.
        (ggc_internal_alloc_zone_stat): Use ggc_round_alloc_size.
        * toplev.c (general_init): Initialize
        line_table->alloced_size_for_request.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * input.c (ONE_K, ONE_M, SCALE, STAT_LABEL, FORMAT_AMOUNT): New macros.
        (num_expanded_macros_counter, num_macro_tokens_counter): Declare
        new counters.
        (dump_line_table_statistics): Define new function.
        * input.h (dump_line_table_statistics): Declare new function.
        * toplev.c (dump_memory_report): Call dump_line_table_statistics.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * doc/cppopts.texi: Document -fdebug-cpp.
        * doc/invoke.texi: Add -fdebug-cpp to the list of preprocessor options.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * gcc/diagnostic.h (diagnostic_report_current_module): Add a
        location parameter.
        * diagnostic.c (diagnostic_report_current_module): Add a location
        parameter to the function definition.  Use it instead of
        input_location.  Resolve the virtual location rather than just
        looking up its map and risking to touch a resulting macro map.
        (default_diagnostic_starter): Pass the relevant diagnostic
        location to diagnostic_report_current_module.
        * tree-diagnostic.c (maybe_unwind_expanded_macro_loc): New.
        (virt_loc_aware_diagnostic_finalizer): Likewise.
        (diagnostic_report_current_function): Pass the
        relevant location to diagnostic_report_current_module.
        * tree-diagnostic.h (virt_loc_aware_diagnostic_finalizer): Declare
        new function.
        * toplev.c (general_init): By default, use the new
        virt_loc_aware_diagnostic_finalizer as diagnostic finalizer.
        * Makefile.in: Add vec.h dependency to tree-diagnostic.c.

2011-10-15  Tom Tromey  <tromey@redhat.com>
            Dodji Seketeli  <dodji@redhat.com>

        * doc/cppopts.texi (-ftrack-macro-expansion): Document new option.
        * doc/invoke.texi (-ftrack-macro-expansion): Add this to the list of
        preprocessor related options.

2011-10-15  Tom Tromey  <tromey@redhat>
            Dodji Seketeli  <dodji@redhat.com>

        * input.h (struct expanded_location): Move to libcpp/line-map.h.
        (LOCATION_COLUMN): New accessor
        (in_system_header_at): Use linemap_location_in_system_header_p.
        * diagnostic.c (diagnostic_report_current_module): Adjust to avoid
        touching the internals of struct line_map.  Use the public API instead.
        (diagnostic_report_diagnostic): Don't use relational operator '<'
        on virtual locations.  Use linemap_location_before_p instead.
        * input.c (expand_location): Adjust to expand to the tokens'
        spelling location when macro location tracking is on.


2011-10-08  Andi Kleen  <ak@linux.intel.com>

        * ggc-page.c (GGC_QUIRE_SIZE): Increase to 512

2011-10-13  Andi Kleen  <ak@linux.intel.com>

        * toplev.c (compile_file): Rename __gnu_slim_lto to __gnu_lto_slim.

2011-10-16  Ira Rosen  <ira.rosen@linaro.org>

        PR tree-optimization/50727
        * tree-vect-patterns.c (vect_operation_fits_smaller_type): Add
        DEF_STMT to the list of statements to be replaced by the
        pattern statements.

2011-10-16  Eric Botcazou  <ebotcazou@adacore.com>

        PR rtl-optimization/50615
        * combine.c (distribute_notes) <REG_ARGS_SIZE>: Skip if I3 is a no-op.

2011-10-16  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/50596
        * tree-vectorizer.h (NUM_PATTERNS): Increase to 7.
        * tree-vect-patterns.c (vect_vect_recog_func_ptrs): Add
        vect_recog_bool_pattern.
        (check_bool_pattern, adjust_bool_pattern_cast,
        adjust_bool_pattern, vect_recog_bool_pattern): New functions.

2011-10-16  Ira Rosen  <ira.rosen@linaro.org>

        * tree-vect-stmts.c (vectorizable_load): For SLP without permutation
        treat the first load of the node as the first element in its
        interleaving chain.
        * tree-vect-slp.c (vect_get_and_check_slp_defs): Swap the operands if
        necessary and possible.
        (vect_build_slp_tree): Add new argument.  Allow load groups of any size
        in basic blocks.  Keep all the loads for further permutation check.
        Use the new argument to determine if there is a permutation.  Update
        the recursive calls.
        (vect_supported_load_permutation_p): Allow subchains of interleaving
        chains in basic block vectorization.
        (vect_analyze_slp_instance): Update the call to vect_build_slp_tree.
        Check load permutation based on the new parameter.
        (vect_schedule_slp_instance): Don't start from the first element in
        interleaving chain unless the loads are permuted.

2011-10-15  Jan Hubicka  <jh@suse.cz>

        PR target/48668
        PR target/50689
        * cgraphunit.c (cgraph_expand_function): Expand thunks and alises
        after function body.

2011-10-15  Richard Henderson  <rth@redhat.com>

        * tree-vect-slp.c: Include langhooks.h.
        (vect_create_mask_and_perm): Emit VEC_PERM_EXPR, not a builtin.
        (vect_transform_slp_perm_load): Use can_vec_perm_expr_p.  Simplify
        mask creation for VEC_PERM_EXPR.
        * tree-vect-stmts.c (perm_mask_for_reverse): Return the mask,
        not the builtin.
        (reverse_vec_elements): Emit VEC_PERM_EXPR not a builtin.
        * Makefile.in (tree-vect-slp.o): Update dependency.
        * optabs.c (can_vec_perm_expr_p): Allow NULL as unknown constant.

2011-10-15  Alan Modra  <amodra@gmail.com>

        PR bootstrap/50738
        * ifcvt.c (dead_or_predicable): Revert accidental commit with
        HAVE_simple_return test.

2011-10-15  Alan Modra  <amodra@gmail.com>

        * ifcvt.c (dead_or_predicable): Disable if-conversion when
        doing so is likely to kill a shrink-wrapping opportunity.

        PR rtl-optimization/49941
        * jump.c (mark_jump_label_1): Set JUMP_LABEL for simple_return jumps.

        * rtl.h (set_return_jump_label): Declare.
        * function.c (set_return_jump_label): New function, extracted..
        (thread_prologue_and_epilogue_insns): ..from here.  Use it in
        another instance to set return jump_label.
        * cfgrtl.c (force_nonfallthru_and_redirect): Use set_return_jump_label.
        * reorg.c (find_end_label): Likewise.

2011-10-14  David S. Miller  <davem@davemloft.net>

        * config/sparc/sol2.h: Protect -m{cpu,tune}=native handling
        with a more complete cpp test.
        * config/sparc/linux64.h: Likewise.
        * config/sparc/linux.h: Likewise.
        * config/sparc/sparc.opt (sparc_debug): New target variable.
        (mdebug): New target option.
        * config/sparc/sparc.h (MASK_DEBUG_OPTIONS, MASK_DEBUG_ALL,
        TARGET_DEBUG_OPTIONS): New defines.
        * config/sparc/sparc.c (debug_target_flag_bits,
        debug_target_flags): New functions.
        (sparc_option_override): Add name strings back to cpu_table[].
        Parse -mdebug string.  When TARGET_DEBUG_OPTIONS is true, print
        out the target flags before and after override processing as well
        as the selected cpu.  If MASK_V8PLUS, make sure that the selected
        cpu is at least v9.

2011-10-15  Oleg Endo  <oleg.endo@t-online.de>

        PR target/49263
        * config/sh/sh.h (ZERO_EXTRACT_ANDMASK): New macro.
        * config/sh/sh.c (sh_rtx_costs): Add test instruction case.
        * config/sh/sh.md (tstsi_t): Name existing insn.  Make inner
        and instruction commutative.
        (tsthi_t, tstqi_t, tstqi_t_zero, tstsi_t_and_not,
        tstsi_t_zero_extract_eq, tstsi_t_zero_extract_xor,
        tstsi_t_zero_extract_subreg_xor_little,
        tstsi_t_zero_extract_subreg_xor_big): New insns.
        (*movsicc_t_false, *movsicc_t_true): Replace space with tab in
        asm output.
        (*andsi_compact): Reorder alternatives so that K08 is considered first.

2011-10-14  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/50354
        * config/sparc/linux64.h (TARGET_DEFAULT): Only override if the default
        processor is at least V9 and TARGET_64BIT_DEFAULT is defined.

2011-10-14  Gerald Pfeifer  <gerald@pfeifer.com>

        * invoke.texi (AVR Options): Avoid \leq{}.

2011-10-14  Kai Tietz  <ktietz@redhat.com>

        * gimplify.c (gimplify_expr): Take care that for bitwise-binary
        transformation the operands have compatible types.

2011-10-14  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_widen_smult_hi_v8hi,
        vec_widen_smult_lo_v8hi, vec_widen_umult_hi_v8hi,
        vec_widen_umult_lo_v8hi): Macroize using VI2_AVX2
        mode iterator and any_extend code iterator.
        (vec_widen_<s>mult_hi_v8si, vec_widen_<s>mult_lo_v8si): New expanders.
        (vec_widen_smult_hi_v4si, vec_widen_smult_lo_v4si): Enable
        also for TARGET_SSE4_1 using pmuldq insn.
        (sdot_prodv8hi): Macroize using VI2_AVX2 iterator.
        (sse2_sse4_1): New code attr.
        (udot_prodv4si): Macroize using any_extend code iterator.
        (<s>dot_prodv8si): New expander.

2011-10-14  Yakovlev Vladimir  <vladimir.b.yakovlev@intel.com>

        * config/i386/i386.c (atom_cost): Changed cost for loading
        QImode using movzbl.

2011-10-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_init_builtins): Fix typo in my
        change on October 11th, 2011.

2011-10-14  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_interleave_high<mode>,
        vec_interleave_low<mode>): Add AVX2 expanders for VI_256 modes.
        * config/i386/i386.c (expand_vec_perm_interleave3): New function.
        (ix86_expand_vec_perm_builtin_1): Call it.

2011-10-14  Georg-Johann Lay  <avr@gjlay.de>

        Fix thinko from r179765
        * config/avr/avr.c (avr_option_override): Don't override
        flag_omit_frame_pointer if not actually needed.

2011-10-14  Georg-Johann Lay  <avr@gjlay.de>

        PR target/46278
        * doc/invoke.texi (AVR Options): Document -mstrict-X.

        * config/avr/avr.opt (-mstrict-X): New option.
        (avr_strict_X): New variable reflecting -mstrict-X.
        * config/avr/avr.c (avr_reg_ok_for_addr_p): Add parameter
        outer_code and pass it down to avr_regno_mode_code_ok_for_base_p.
        (avr_legitimate_address_p): Pass outer_code to
        avr_reg_ok_for_addr_p and use that function in case PLUS.
        (avr_mode_code_base_reg_class): Depend on avr_strict_X.
        (avr_regno_mode_code_ok_for_base_p): Ditto, and depend on outer_code.
        (avr_option_override): Disable -fcaller-saves if -mstrict-X is on.

2011-10-14  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (neg<mode>2): Use VI_AVX2 iterator instead
        of VI_128.

        * config/i386/sse.md (mulv2di3): Macroize using VI8_AVX2 iterator.
        (ashl<mode>3): Use VI248_AVX2 iterator instead of VI248_128.
        Use <sseinsnmode> instead of TI in mode attr.

2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

        * config/arm/linux-atomic-64bit.c: New (based on linux-atomic.c).
        * config/arm/linux-atomic.c: Change comment to point to 64bit version.
        (SYNC_LOCK_RELEASE): Instantiate 64bit version.
        * config/arm/t-linux-eabi: Pull in linux-atomic-64bit.c.

2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

        * config/arm/arm.c (arm_output_ldrex): Support ldrexd.
        (arm_output_strex): Support strexd.
        (arm_output_it): New helper to output it in Thumb2 mode only.
        (arm_output_sync_loop): Support DI mode.  Change comment to
        not support const_int.
        (arm_expand_sync): Support DI mode.
        * config/arm/arm.h (TARGET_HAVE_LDREXBHD): Split into LDREXBH
        and LDREXD.
        * config/arm/iterators.md (NARROW): move from sync.md.
        (QHSD): New iterator for all current ARM integer modes.
        (SIDI): New iterator for SI and DI modes only.
        * config/arm/sync.md (sync_predtab): New mode_attr.
        (sync_compare_and_swapsi): Fold into sync_compare_and_swap<mode>.
        (sync_lock_test_and_setsi): Fold into sync_lock_test_and_setsi<mode>.
        (sync_<sync_optab>si): Fold into sync_<sync_optab><mode>.
        (sync_nandsi): Fold into sync_nand<mode>.
        (sync_new_<sync_optab>si): Fold into sync_new_<sync_optab><mode>.
        (sync_new_nandsi): Fold into sync_new_nand<mode>.
        (sync_old_<sync_optab>si): Fold into sync_old_<sync_optab><mode>.
        (sync_old_nandsi): Fold into sync_old_nand<mode>.
        (sync_compare_and_swap<mode>): Support SI & DI.
        (sync_lock_test_and_set<mode>): Likewise.
        (sync_<sync_optab><mode>): Likewise.
        (sync_nand<mode>): Likewise.
        (sync_new_<sync_optab><mode>): Likewise.
        (sync_new_nand<mode>): Likewise.
        (sync_old_<sync_optab><mode>): Likewise.
        (sync_old_nand<mode>): Likewise.
        (arm_sync_compare_and_swapsi): Turn into iterator on SI & DI.
        (arm_sync_lock_test_and_setsi): Likewise.
        (arm_sync_new_<sync_optab>si): Likewise.
        (arm_sync_new_nandsi): Likewise.
        (arm_sync_old_<sync_optab>si): Likewise.
        (arm_sync_old_nandsi): Likewise.
        (arm_sync_compare_and_swap<mode> NARROW): use sync_predtab, fix indent.
        (arm_sync_lock_test_and_setsi<mode> NARROW): Likewise.
        (arm_sync_new_<sync_optab><mode> NARROW): Likewise.
        (arm_sync_new_nand<mode> NARROW): Likewise.
        (arm_sync_old_<sync_optab><mode> NARROW): Likewise.
        (arm_sync_old_nand<mode> NARROW): Likewise.

2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

        PR target/48126
        * config/arm/arm.c (arm_output_sync_loop): Move label before barrier.

2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

        * config/arm/arm.h (TARGET_HAVE_DMB_MCR): MCR Not available in Thumb1.

2011-10-14  Paolo Carlini  <paolo.carlini@oracle.com>

        * doc/invoke.texi ([Wformat-zero-length]): Tidy.

2011-10-14  Jakub Jelinek  <jakub@redhat.com>

        * gimple.c (walk_stmt_load_store_addr_ops): Call visit_addr also
        on COND_EXPR/VEC_COND_EXPR comparison operands if they are ADDR_EXPRs.

2011-10-14  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50723
        * ipa-split.c (split_function): Use GSI_CONTINUE_LINKING.

2011-10-14  Nicola Pero  <nicola.pero@meta-innovation.com>

        * gengtype.c (files_rules): Added rules for objc/objc-map.h and
        objc/objc-map.c.

2011-10-14  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/17212
        * doc/invoke.texi ([Wformat-zero-length]): Update.

2011-10-14  Iain Sandoe  <iains@gcc.gnu.org>

        PR bootstrap/50699
        * config/darwin.c (darwin_patch_builtin): Adjust argument type. Only
        build for powerpc targets.  (darwin_patch_builtins): Only build for
        powerpc targets.

2011-10-14  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (*avx_cvtdq2pd256_2): Rename to...
        (avx_cvtdq2pd256_2): ... this.
        (sseunpackfltmode): New mode attr.
        (vec_unpacks_float_hi_v8hi, vec_unpacks_float_lo_v8hi,
        vec_unpacku_float_hi_v8hi, vec_unpacku_float_lo_v8hi): Macroize
        using VI2_AVX2 iterator.
        (vec_unpacku_float_hi_v8si, vec_unpacku_float_lo_v8si): New expanders.

2011-10-13  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (plusminus): New code iterator.
        (plusminus_insn): New code attr.
        (addv2si3, subv2si3, addv4hi3, subv4hi3, addv2hi3, subv2hi3): Merge
        using plusminus and plusminus_insn.
        (fpadd64_vis, fpsub64_vis): Likewise.

2011-10-13  Richard Henderson  <rth@redhat.com>

        * doc/md.texi (vec_perm): Document fallback to byte permutation.
        * genopinit.c (optabs): Add vec_perm_const.
        * optabs.c (can_vec_perm_expr_p): Rename from expand_vec_perm_expr_p.
        Reject non-vector modes.  Allow fallback to byte permutation.
        (expand_vec_perm_expr_1): Split out from ...
        (expand_vec_perm_expr): ... here.  Allow fallback to byte permutation.
        * optabs.h (DOI_vec_perm_const, vec_perm_const_optab): New.
        * tree-vect-generic.c (lower_vec_perm): Update for name change.

2011-10-13  Richard Henderson  <rth@redhat.com>

        * config/rs6000/altivec.md (vec_permv16qi): New pattern.

        * config/rs6000/spu.md (vec_permv16qi): New pattern.

        * config/i386/i386.c (ix86_expand_vec_perm_const): New.
        * config/i386/i386-protos.h: Update.
        * config/i386/sse.md (VEC_PERM_CONST): New mode iterator.
        (vec_perm_const<VEC_PERM_CONST>): New expander.

        * optabs.c (expand_vector_broadcast): New.
        (expand_binop): Expand scalar shifts of vectors to vector shifts
        of vectors, if the former isn't supported.
        * tree-vect-generic.c (expand_vector_operations_1): Don't do that
        here; always simplify to scalar shift of vector if possible.

        * config/rs6000/rs6000.c (rs6000_expand_vector_init): Fix mode
        test for vector splat.

2011-10-13  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_set<mode>): Change V_128 iterator mode to V.

2011-10-13  Jakub Jelinek  <jakub@redhat.com>
            Richard Guenther  <rguenther@suse.de>

        * tree-ssa.c (maybe_optimize_var): Drop TREE_ADDRESSABLE from vector
        or complex vars even if their DECL_UID is in not_reg_needs bitmap.

2011-10-13  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (reduc_umin_v8hi): New pattern.
        * config/i386/i386.c (ix86_build_const_vector): Handle
        also V32QI, V16QI, V16HI and V8HI modes.
        (emit_reduc_half): New function.
        (ix86_expand_reduc): Use phminposuw insn for V8HImode UMIN.
        Use emit_reduc_half helper function.

2011-10-13  Lawrence Crowl  <crowl@google.com>
            Diego Novillo  <dnovillo@google.com>

        * lto-streamer-in.c (input_struct_function_base): Factor out of ...
        (input_function): ... here.
        * lto-streamer-out.c (output_struct_function_base): Factor out of ...
        (output_function): ... here.

2011-10-13  Gabriel Charette  <gchare@google.com>
            Diego Novillo  <dnovillo@google.com>

        * streamer-hooks.h (struct streamer_hooks): Add hooks
        input_location and output_location.
        * lto-streamer-in.c (lto_input_location): Use
        streamer_hooks.input_location, if set.
        * lto-streamer-out.c (lto_output_location): Use
        streamer_hooks.output_location, if set.

2011-10-13  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/invoke.texi (SPARC options): Document -mfix-at697f.
        * config/sparc/sparc.opt (mfix-at697f): New option.
        * config/sparc/sparc.c (TARGET_MACHINE_DEPENDENT_REORG): Define.
        (sparc_reorg): New function.

2011-10-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50712
        * ipa-split.c (split_function): Always re-gimplify parameters
        when they are not gimple vals before passing them.  Properly
        check for type compatibility.

2011-10-13  Tom de Vries  <tom@codesourcery.com>

        * function.c (gimplify_parameters): Set number of arguments of call to
        BUILT_IN_ALLOCA_WITH_ALIGN to 2.

2011-10-13  Tom de Vries  <tom@codesourcery.com>

        * emit-rtl.c (set_mem_attributes_minus_bitpos): Set MEM_READONLY_P
        for static const strings.
        * varasm.c (build_constant_desc): Generate the memory location of the
        constant using gen_const_mem.

2011-10-13  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50698
        * tree-data-ref.c (split_constant_offset_1): Also process
        offsets of &MEM.

2011-10-12  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (UNSPEC_FPMERGE): Delete.
        (UNSPEC_MUL16AU, UNSPEC_MUL8, UNSPEC_MUL8SU, UNSPEC_MULDSU): New
        unspecs.
        (fpmerge_vis): Remove inaccurate comment, represent using vec_select
        of a vec_concat.
        (vec_interleave_lowv8qi, vec_interleave_highv8qi): New insns.
        (fmul8x16_vis, fmul8x16au_vis, fmul8sux16_vis, fmuld8sux16_vis):
        Reimplement as unspecs and remove inaccurate comments.
        (vis3_shift_patname): New code attr.
        (<vis3_shift_insn><vbits>_vis): Rename to
        "v<vis3_shift_patname><mode>3".
        (vis3_addsub_ss_patname): New code attr.
        (<vis3_addsub_ss_insn><vbits>_vis): Rename to
        "<vis3_addsub_ss_patname><mode>3".
        * config/sparc/sparc.c (sparc_vis_init_builtins): Update to
        accommodate pattern name changes.

        * config/sparc/sparc.h: Do not force TARGET_VIS3 and TARGET_FMAF
        to zero when assembler lacks support for such instructions.
        * config/sparc/sparc.c (sparc_option_override): Clear MASK_VIS3
        and MASK_FMAF in defaults when assembler lacks necessary support.

2011-10-12  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (vec_unpacks_lo_<mode>,
        vec_unpacks_hi_<mode>, vec_unpacku_lo_<mode>,
        vec_unpacku_hi_<mode>): Change VI124_128 mode to VI124_AVX2.
        * config/i386/i386.c (ix86_expand_sse_unpack): Handle
        V32QImode, V16HImode and V8SImode for TARGET_AVX2.

        * config/i386/sse.md (vec_avx2): New mode_attr.
        (mulv16qi3): Macroize to cover also mulv32qi3 for TARGET_AVX2 into ...
        (mul<mode>3): ... this.

        * config/i386/i386.md (UNSPEC_VPERMDI): Remove.
        * config/i386/i386.c (ix86_expand_vec_perm): Handle
        V16QImode and V32QImode for TARGET_AVX2.
        (MAX_VECT_LEN): Increase to 32.
        (expand_vec_perm_blend): Add support for 32-byte integer
        vectors with TARGET_AVX2.
        (valid_perm_using_mode_p): New function.
        (expand_vec_perm_pshufb): Add support for 32-byte integer
        vectors with TARGET_AVX2.
        (expand_vec_perm_vpshufb2_vpermq): New function.
        (expand_vec_perm_vpshufb2_vpermq_even_odd): New function.
        (expand_vec_perm_even_odd_1): Handle 32-byte integer vectors
        with TARGET_AVX2.
        (ix86_expand_vec_perm_builtin_1): Try expand_vec_perm_vpshufb2_vpermq
        and expand_vec_perm_vpshufb2_vpermq_even_odd.
        * config/i386/sse.md (VEC_EXTRACT_EVENODD_MODE): Add for TARGET_AVX2
        32-byte integer vector modes.
        (vec_pack_trunc_<mode>): Use VI248_AVX2 instead of VI248_128.
        (avx2_interleave_highv32qi, avx2_interleave_lowv32qi): Remove pasto.
        (avx2_pshufdv3, avx2_pshuflwv3, avx2_pshufhwv3): Generate
        4 new operands.
        (avx2_pshufd_1, avx2_pshuflw_1, avx2_pshufhw_1): Don't use
        match_dup, instead add 4 new operands and require they have
        right cross-lane values.
        (avx2_permv4di): Change into define_expand.
        (avx2_permv4di_1): New instruction.
        (avx2_permv2ti): Use nonimmediate_operand instead of register_operand
        for "xm" constrained operand.
        (VEC_PERM_AVX2): Add V32QI and V16QI for TARGET_AVX2.

        * config/i386/sse.md (avx2_gathersi<mode>,
        avx2_gatherdi<mode>, avx2_gatherdi<mode>256): Add clobber of
        match_scratch, change memory_operand to register_operand,
        add (mem:BLK (scratch)) use.
        (*avx2_gathersi<mode>, *avx2_gatherdi<mode>,
        *avx2_gatherdi<mode>256): Add clobber of match_scratch,
        add earlyclobber to the output operand and match_scratch,
        add (mem:BLK (scratch)) use, change the other mem to match_operand.
        Use %p6 instead of %c6 in the pattern.
        * config/i386/i386.c (ix86_expand_builtin): Adjust for
        operand 2 being a Pmode register_operand instead of memory_operand.

2011-10-12  Kai Tietz  <ktietz@redhat.com>

        * config/i386/i386.md (simple_return): Disable if TARGET_SEH is active.

2011-10-12  Steve Ellcey  <sje@cup.hp.com>

        * config/ia64/ia64.c (ia64_init_builtins): Fix unbalanced parentheses.

2011-10-12  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-alias.c (maybe_skip_until): Cache also at the point
        of the first store we visit in a basic-block.
        (get_continuation_for_phi): Search for a candidate VUSE that
        might dominates all others.  Do pairwise disambiguation against
        that candidate.

2011-10-12  Paul Koning  <pkoning@gcc.gnu.org>

        PR tree-optimization/50189
        * tree-vrp.c (extract_range_from_assert): Use the type of
        the variable, not the limit.

2011-10-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50700
        * tree-object-size.c (addr_object_size): Simplify and treat
        MEM_REF bases consistently.

2011-10-12  Bernd Schmidt  <bernds@codesourcery.com>

        * function.c (prepare_shrink_wrap, bb_active_p): New function.
        (thread_prologue_and_epilogue_insns): Use bb_active_p.  Call
        prepare_shrink_wrap, then recompute bb_active_p for the last block.

2011-10-12  Joseph Myers  <joseph@codesourcery.com>

        PR c/50565
        * convert.c (convert_to_integer): Do not narrow operands of
        pointer subtraction.

2011-10-12  Nick Clifton  <nickc@redhat.com>

        * config/arm/arm.h (EMIT_EABI_ATTRIBUTE): New macro.  Used to
        emit a .eabi_attribute assembler directive, possibly with a
        comment attached.
        * config/arm/arm.c (arm_file_start): Use the new macro.
        * config/arm/arm-c.c (arm_output_c_attributes): Likewise.

2011-10-12  Georg-Johann Lay  <avr@gjlay.de>

        PR target/49939
        * config/avr/avr.md (*movqi): Rename to movqi_insn.
        (*call_insn): Rename to call_insn.
        (*call_value_insn): Rename to call_value_insn.
        * config/avr/avr.c (avr_2word_insn_p): New static function.
        (jump_over_one_insn_p): Use it.

2011-10-12  Richard Sandiford  <richard.sandiford@linaro.org>

        * expr.h (copy_blkmode_to_reg): Declare.
        * expr.c (copy_blkmode_to_reg): New function.
        (expand_assignment): Don't expand register RESULT_DECLs before
        the lhs.  Use copy_blkmode_to_reg to copy BLKmode values into a
        RESULT_DECL register.
        (expand_expr_real_1): Handle BLKmode decls when looking for promotion.
        * stmt.c (expand_return): Move BLKmode-to-register code into
        copy_blkmode_to_reg.

2011-10-11  Eric Botcazou  <ebotcazou@adacore.com>

        PR target/49965
        * config/sparc/sparc.md (mov<I:mode>cc): Do not save comparison code.
        (mov<F:mode>cc): Likewise.

2011-10-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * tree-ssa-address.c (copy_ref_info): Remove copy of TREE_THIS_NOTRAP.

2011-10-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

        * tree.h (built_in_decls): Delete old interface with two parallel
        arrays to hold standard builtin declarations, and replace it with
        a function based interface that can support creating builtins on
        the fly in the future.  Change all uses, and poison the old
        names.  Make sure 0 is not a legitimate builtin index.
        (implicit_built_in_decls): Ditto.
        (built_in_info): Ditto.
        (BUILTIN_VALID_P): Ditto.
        (builtin_decl_explicit): Ditto.
        (builtin_decl_implicit): Ditto.
        (set_builtin_decl): Ditto.
        (set_builtin_decl_implicit_p): Ditto.
        (builtin_decl_explicit_p): Ditto.
        (builtin_decl_implicit_p): Ditto.
        * tree-complex.c (expand_complex_libcall): Ditto.
        * tree-loop-distribution.c (generate_memset_zero): Ditto.
        * tree-ssa-strlen.c (get_string_length): Ditto.
        (handle_builtin_strcpy): Ditto.
        (handle_builtin_strcat): Ditto.
        * tree.c (iterative_hash_expr): Ditto.
        (local_define_builtin): Ditto.
        (build_common_builtin_nodes): Ditto.
        * builtins.c (built_in_decls): Ditto.
        (implicit_built_in_decls): Ditto.
        (built_in_info): Ditto
        (expand_builtin_classify_type): Ditto.
        (mathfn_built_in_1): Ditto.
        (expand_builtin_cexpi): Ditto.
        (expand_builtin_mempcpy_args): Ditto.
        (expand_builtin_stpcpy): Ditto.
        (gimplify_va_arg_expr): Ditto.
        (expand_builtin_sync_operation): Ditto.
        (build_builtin_expect_predicate): Ditto.
        (fold_builtin_memory_op): Ditto.
        (fold_builtin_strcpy): Ditto.
        (fold_builtin_stpcpy): Ditto.
        (fold_builtin_strncpy): Ditto.
        (fold_builtin_interclass_mathfn): Ditto.
        (fold_builtin_classify): Ditto.
        (fold_builtin_2): Ditto.
        (fold_builtin_strstr): Ditto.
        (fold_builtin_strrchr): Ditto.
        (fold_builtin_strpbrk): Ditto.
        (fold_builtin_strcat): Ditto.
        (fold_builtin_strncat): Ditto.
        (fold_builtin_strcspn): Ditto.
        (fold_builtin_fputs): Ditto.
        (fold_builtin_sprintf): Ditto.
        (fold_builtin_snprintf): Ditto.
        (expand_builtin_memory_chk): Ditto.
        (fold_builtin_memory_chk): Ditto.
        (fold_builtin_stxcpy_chk): Ditto.
        (fold_builtin_strncpy_chk): Ditto.
        (fold_builtin_strcat_chk): Ditto.
        (fold_builtin_strncat_chk): Ditto.
        (fold_builtin_sprintf_chk_1): Ditto.
        (fold_builtin_snprintf_chk_1): Ditto.
        (fold_builtin_printf): Ditto.
        (fold_builtin_fprintf): Ditto.
        (fold_call_stmt): Ditto.
        (set_builtin_user_assembler_name): Ditto.
        * tree-emutls.c (emutls_common_1): Ditto.
        * omp-low.c (scan_omp): Ditto.
        (lower_rec_input_clauses): Ditto.
        (lower_reduction_clauses): Ditto.
        (expand_parallel_call): Ditto.
        (expand_task_call): Ditto.
        (maybe_catch_exception): Ditto.
        (optimize_omp_library_calls): Ditto.
        (expand_omp_for_generic): Ditto.
        (expand_omp_for_static_nochunk): Ditto.
        (expand_omp_for_static_chunk): Ditto.
        (expand_omp_sections): Ditto.
        (expand_omp_atomic_fetch_op): Ditto.
        (expand_omp_atomic_pipeline): Ditto.
        (expand_omp_atomic_mutex): Ditto.
        (lower_omp_single_simple): Ditto.
        (lower_omp_single_copy): Ditto.
        (lower_omp_master): Ditto.
        (lower_omp_ordered): Ditto.
        (lower_omp_critical): Ditto.
        * tree-ssa-ccp.c (optimize_stdarg_builtin): Ditto.
        * builtins.c (DEF_BUILTIN_STUB): Ditto.
        (BUILT_IN_NONE): Ditto.
        * tree-ssa-math-opts.c (execute_optimize_bswap): Ditto.
        * gimple-low.c (lower_function_body): Ditto.
        (lower_builtin_setjmp): Ditto.
        * c-decl.c (merge_decls): Ditto.
        * tree-eh.c (lower_resx): Ditto.
        (lower_resx): Ditto.
        (lower_eh_dispatch): Ditto.
        * function (gimplify_parameters): Ditto.
        * c-typeck.c (build_function_call_vec): Ditto.
        * gimplify.c (build_stack_save_restore): Ditto.
        (gimplify_vla_decl): Ditto.
        (gimplify_modify_expr_to_memcpy): Ditto.
        (gimplify_modify_expr_to_memset): Ditto.
        (gimplify_variable_sized_compare): Ditto.
        (gimplify_function_tree): Ditto.
        * calls.c (emit_call_1): Ditto.
        * tree-ssa-forprop.c (simplify_builtin_call): Ditto.
        * tree-nested.c (convert_nl_goto_reference): Ditto.
        (convert_tramp_reference_op): Ditto.
        (finalize_nesting_tree_1): Ditto.
        * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Ditto.
        (tree_ssa_prefetch_arrays): Ditto.
        * tree-streamer-in.c (streamer_get_builtin_tree): Ditto.
        * system.h (built_in_decls): Ditto.
        (implicit_built_in_decls): Ditto.
        * tree-vect-generic.c (expand_vector_operations_1): Ditto.
        * config/sparc/sparc.c (sparc_gimplify_va_arg): Ditto.
        * config/i386/i386.c (ix86_gimplify_va_arg): Ditto.
        (ix86_veclibabi_svml): Ditto.
        (ix86_veclibabi_acml): Ditto.
        * config/vms/vms.c (vms_patch_builtins): Ditto.
        * config/ia64/ia64.c (ia64_init_builtins): Ditto.
        * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Ditto.
        (rs6000_builtin_vectorized_libmass): Ditto.
        (rs6000_init_builtins): Ditto.
        * config/darwin.c (darwin_override_options): Ditto.
        (darwin_patch_builtin): Ditto.
        (darwin_rename_builtins): Ditto.
        * config/pa/pa.c (pa_init_builtins): Ditto.

2011-10-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * tree.h (copy_ref_info): Expose existing function.
        * tree-ssa-loop-ivopts.c (copy_ref_info): Move function to...
        * tree-ssa-address.c (copy_ref_info): ...here, and remove static token.

2011-10-11  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (avr_mode_code_base_reg_class): New
        prototype.
        (avr_regno_mode_code_ok_for_base_p): New prototype.
        * config/avr/avr.h (BASE_REG_CLASS): Remove.
        (REGNO_OK_FOR_BASE_P): Remove.
        (REG_OK_FOR_BASE_NOSTRICT_P): Remove.
        (REG_OK_FOR_BASE_STRICT_P): Remove.
        (MODE_CODE_BASE_REG_CLASS): New define.
        (REGNO_MODE_CODE_OK_FOR_BASE_P): New define.
        * config/avr/avr.c (avr_mode_code_base_reg_class): New function.
        (avr_regno_mode_code_ok_for_base_p): New function.
        (avr_reg_ok_for_addr_p): New static function.
        (avr_legitimate_address_p): Use it.  Beautify.

2011-10-11  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50447
        * config/avr/avr.md (cc): Add out_plus attribute alternative.
        (addsi3): Use it.  Adapt avr_out_plus to new prototype.  Use
        avr_out_plus for all CONST_INT addends.
        * config/avr/avr-protos.h (avr_out_plus): Change prototype.
        * config/avr/avr.c (notice_update_cc): Call avr_out_plus on
        CC_OUT_PLUS.
        (avr_out_plus_1): Change prototype and report effect on cc0.
        (avr_out_plus): Ditto.
        (adjust_insn_length): Adapt call to avr_out_plus to new prototype.

2011-10-11  H.J. Lu  <hongjiu.lu@intel.com>

        * config/i386/i386.c (ix86_expand_special_args_builtin): Remove
        the extra break.

2011-10-11  Artjoms Sinkarovs  <artyom.shinkaroff@gmail.com>

        * doc/invoke.texi: Document new warning.
        * common.opt (Wvector-operation-performance): Define new warning.
        * tree-vect-generic.c (expand_vector_piecewise): Warn about expanded
        vector operation.
        (exapnd_vector_parallel): Warn about expanded vector operation.
        (lower_vec_shuffle): Warn about expanded vector operation.
        * c-typeck.c (c_build_vec_perm_expr): Store correct location
        when creating VEC_PERM_EXPR.

2011-10-11  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50204
        * tree-ssa-alias.c (get_continuation_for_phi_1): Split out
        two argument handling from ...
        (get_continuation_for_phi): ... here.  Handle arbitrary number
        of PHI args.

2011-10-11  Richard Sandiford  <richard.sandiford@linaro.org>

        * modulo-sched.c: Fix comment typo.  Mention the possibility
        of using scheduling windows of II+1 cycles.

2011-10-11  Tristan Gingold  <gingold@adacore.com>

        * doc/invoke.texi (C Dialect Options): Document
        -fallow-parameterless-variadic-functions.
        * c-parser.c (c_parser_parms_list_declarator): Handle it.

2011-10-10  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.c (avr_option_override): Set flag_omit_frame_pointer
        to 0 if frame pointer is needed for unwinding.

2011-10-10  Uros Bizjak  <ubizjak@gmail.com>

        PR bootstrap/50665
        * optabs.h (DOI_vec_perm): Rename from OTI_vec_perm.  Move from enum
        optab_index to enum direct_optab_index.
        (vec_perm_optab): Update.

2011-10-10  Anatoly Sokolov  <aesok@post.ru>

        * config/cris/cris.c (cris_preferred_reload_class): New function.
        (TARGET_PREFERRED_RELOAD_CLASS): Define.
        * config/cris/cris.h (PREFERRED_RELOAD_CLASS): Remove.

2011-10-10  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (*tablejump_rjmp): Change insn condition to
        !AVR_HAVE_JMP_CALL.
        (*tablejump_lib): Change insn condition to AVR_HAVE_JMP_CALL.
        (*tablejump_enh, *tablejump): Remove insns.
        * config/avr/libgcc.S (__tablejump__): Use RET instead of EIND +
        EIJMP for indirect jump.  Use LPM Z+ where available.

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

        * doc/md.texi (vec_perm_const): Fix typo in cindex.

2011-10-10  Kirill Yukhin  <kirill.yukhin@intel.com>
            Yakovlev Vladimir  <vladimir.b.yakovlev@intel.com>

        * config/i386/sse.md (fma_fnmsub_<mode>): Fix a typo.

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

        PR middle-end/50389
        * gimple-fold.c (gimplify_and_update_call_from_tree): Do not
        mark symbols for renaming.  Append the VUSE to all statements
        that possibly can have one.

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

        * ipa-split.c (pass_split_functions): Add verification TODOs.
        (pass_feedback_split_functions): Likewise.

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

        PR middle-end/50195
        * fold-const.c (fold_binary_loc): Canonicalize x*x to pow (x, 2)
        only when optimizing.

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

        PR middle-end/49801
        * compare-elim.c (find_comparisons_in_bb): Use df_get_live_in and
        df_get_live_out instead of accessing the bitmaps directly.
        (execute_compare_elim_after_reload): Remove calls to df_set_flags,
        df_live_add_problem and df_analyze.

2011-10-10  Michael Matz  <matz@suse.de>

        PR middle-end/50638
        * tree-emutls.c (gen_emutls_addr): Call add_referenced_var.

2011-10-10  Richard Sandiford  <richard.sandiford@linaro.org>

        * modulo-sched.c (ps_reg_move_info): Add num_consecutive_stages.
        (SCHED_FIRST_REG_MOVE, SCHED_NREG_MOVES): Delete.
        (node_sched_params): Remove first_reg_move and nreg_moves.
        (ps_num_consecutive_stages, extend_node_sched_params): New functions.
        (update_node_sched_params): Move up file.
        (print_node_sched_params): Print the stage.  Don't dump info related
        to first_reg_move and nreg_moves.
        (set_columns_for_row): New function.
        (set_columns_for_ps): Move up file and use set_columns_for_row.
        (schedule_reg_move): New function.
        (schedule_reg_moves): Call extend_node_sched_params and
        schedule_reg_move.  Extend size of uses bitmap.  Initialize
        num_consecutive_stages.  Return false if a move could not be
        scheduled.
        (apply_reg_moves): Don't emit moves here.
        (permute_partial_schedule): Handle register moves.
        (duplicate_insns_of_cycles): Remove for_prolog.  Emit moves according
        to the same stage-count test as ddg nodes.
        (generate_prolog_epilog): Update calls accordingly.
        (sms_schedule): Allow move-scheduling to add a new first stage.

2011-10-10  Richard Sandiford  <richard.sandiford@linaro.org>

        * modulo-sched.c (ps_insn): Adjust comment.
        (ps_reg_move_info): New structure.
        (partial_schedule): Add reg_moves field.
        (SCHED_PARAMS): Use node_sched_param_vec instead of node_sched_params.
        (node_sched_params): Turn first_reg_move into an identifier.
        (ps_reg_move): New function.
        (ps_rtl_insn): Cope with register moves.
        (ps_first_note): Adjust comment and assert that the instruction
        isn't a register move.
        (node_sched_params): Replace with...
        (node_sched_param_vec): ...this vector.
        (set_node_sched_params): Adjust accordingly.
        (print_node_sched_params): Take a partial schedule instead of a ddg.
        Use ps_rtl_insn and ps_reg_move.
        (generate_reg_moves): Rename to...
        (schedule_reg_moves): ...this.  Remove rescan parameter.  Record each
        move in the partial schedule, but don't emit it here.  Don't perform
        register substitutions here either.
        (apply_reg_moves): New function.
        (duplicate_insns_of_cycles): Use register indices directly,
        rather than finding instructions using PREV_INSN.  Use ps_reg_move.
        (sms_schedule): Call schedule_reg_moves before committing to
        a partial schedule.   Try the next ii if the schedule fails.
        Use apply_reg_moves instead of generate_reg_moves.  Adjust
        call to print_node_sched_params.  Free node_sched_param_vec
        instead of node_sched_params.
        (create_partial_schedule): Initialize reg_moves.
        (free_partial_schedule): Free reg_moves.

2011-10-10  Richard Sandiford  <richard.sandiford@linaro.org>

        * modulo-sched.c (ps_insn): Replace node field with an identifier.
        (SCHED_ASAP): Replace with..
        (NODE_ASAP): ...this macro.
        (SCHED_PARAMS): New macro.
        (SCHED_TIME, SCHED_FIRST_REG_MOVE, SCHED_NREG_MOVES, SCHED_ROW)
        (SCHED_STAGE, SCHED_COLUMN): Redefine using SCHED_PARAMS.
        (node_sched_params): Remove asap.
        (ps_rtl_insn, ps_first_note): New functions.
        (set_node_sched_params): Use XCNEWVEC.  Don't copy across the
        asap values.
        (print_node_sched_params): Use SCHED_PARAMS and NODE_ASAP.
        (generate_reg_moves): Pass ids to the SCHED_* macros.
        (update_node_sched_params): Take a ps insn identifier rather than
        a node as parameter.  Use ps_rtl_insn.
        (set_columns_for_ps): Update for above field and SCHED_* macro changes.
        (permute_partial_schedule): Use ps_rtl_insn and ps_first_note.
        (optimize_sc): Update for above field and SCHED_* macro changes.
        Update calls to try_scheduling_node_in_cycle and
        update_node_sched_params.
        (duplicate_insns_of_cycles): Adjust for above field and SCHED_*
        macro changes.  Use ps_rtl_insn and ps_first_note.
        (sms_schedule): Pass ids to the SCHED_* macros.
        (get_sched_window): Adjust for above field and SCHED_* macro changes.
        Use NODE_ASAP instead of SCHED_ASAP.
        (try_scheduling_node_in_cycle): Remove node parameter.  Update
        call to ps_add_node_check_conflicts.  Pass ids to the SCHED_* macros.
        (sms_schedule_by_order): Update call to try_scheduling_node_in_cycle.
        (ps_insert_empty_row): Adjust for above field changes.
        (compute_split_row): Use ids rather than nodes.
        (verify_partial_schedule): Adjust for above field changes.
        (print_partial_schedule): Use ps_rtl_insn.
        (create_ps_insn): Take an id rather than a node.
        (ps_insn_find_column): Adjust for above field changes.
        Use ps_rtl_insn.
        (ps_insn_advance_column): Adjust for above field changes.
        (add_node_to_ps): Remove node parameter.  Update call to
        create_ps_insn.
        (ps_has_conflicts): Use ps_rtl_insn.
        (ps_add_node_check_conflicts): Replace node parameter than an id.

2011-10-10  Richard Sandiford  <richard.sandiford@linaro.org>

        * modulo-sched.c (undo_replace_buff_elem): Delete.
        (generate_reg_moves): Don't build and return an undo list.
        (free_undo_replace_buff): Delete.
        (sms_schedule): Adjust call to generate_reg_moves.
        Don't call free_undo_replace_buff.

2011-10-10  Matthias Klose <doko@ubuntu.com>

        * common/config/m32c: Remove empty directory.

2011-10-10  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (*mulhi3_enh): Treat squaring smarter.

2011-10-10  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50652
        * config/avr/avr-mcus.def (AVR_MCU): Set .data_section_start of
        atmega164a to 0x100.

2011-10-09  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-ssa-forwprop.c (forward_propagate_into_comparison): Do not make
        the replacement if the conversion to the LHS type is not useless.

2011-10-09  Ira Rosen  <ira.rosen@linaro.org>

        PR tree-optimization/50635
        * tree-vect-patterns.c (vect_handle_widen_mult_by_const): Add
        DEF_STMT to the list of statements to be replaced by the
        pattern statements.
        (vect_handle_widen_mult_by_const): Don't check TYPE_OUT.

2011-10-09  Anatoly Sokolov  <aesok@post.ru>

        * system.h: Commit forgotten hunk in previous patch.
        (OUTPUT_ADDR_CONST_EXTRA): Poison.

2011-10-08  Nicola Pero  <nicola.pero@meta-innovation.com>

        PR libobjc/50428
        * doc/objc.texi (Garbage Collection): Updated example to protect
        +initialize against execution in subclasses.

2011-10-07  Richard Henderson  <rth@redhat.com>

        * doc/extend.texi (__builtin_shuffle): Improve the description to
        include the modulus of the selector.  Mention OpenCL.
        * doc/md.texi (vec_perm, vec_perm_const): Document named patterns.

        * tree.def (VEC_PERM_EXPR): Rename from VEC_SHUFFLE_EXPR.
        * genopinit.c (optabs): Rename vshuffle to vec_perm.
        * c-typeck.c (c_build_vec_perm_expr): Rename from
        c_build_vec_shuffle_expr.  Update for name changes.
        * optabs.c (expand_vec_perm_expr_p): Rename from
        expand_vec_shuffle_expr_p.
        (expand_vec_perm_expr): Rename from expand_vec_shuffle_expr.
        * optabs.h (OTI_vec_perm): Rename from DOI_vshuffle.
        (vec_perm_optab): Rename from vshuffle_optab.
        * expr.c, gimple-pretty-print.c, gimple.c, gimplify.c,
        c-tree.h, c-parser.c, tree-cfg.c, tree-inline.c, tree-pretty-print.c,
        tree-ssa-operands.c, tree-vect-generic.c: Update for name changes.

        * config/i386/i386.c (ix86_expand_vec_perm): Rename from
        ix86_expand_vshuffle.
        * config/i386/i386-protos.h: Update.
        * config/i386/sse.md (VEC_PERM_AVX2): Rename from VSHUFFLE_AVX2.
        (vec_perm<VEC_PERM_AVX2>): Rename from vshuffle<VSHUFFLE_AVX2>.

2011-10-07  Richard Henderson  <rth@redhat.com>

        * config/i386/predicates.md (avx2_pblendw_operand): New.
        * config/i386/sse.md (sse4_1_pblendw): Un-macroize.
        (avx2_pblendw, *avx2_pblendw): New expander and insn.

2011-10-07  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (bdesc_args): Update code for
        __builtin_ia32_palignr256.  Change type of __builtin_ia32_pslldqi256,
        and __builtin_ia32_psrldqi256 to V4DI_FTYPE_V4DI_INT_CONVERT.
        (ix86_expand_args_builtin): Handle V4DI_FTYPE_V4DI_INT_CONVERT.
        * config/i386/sse.md (mode iterator V16): Add V2TI.
        (mode iterator SSESCALARMODE): Use V2TI not V4DI.
        (mode attr ssse3_avx2): Add V2TI.
        (avx2_lshrqv4di3, avx2_lshlqv4di3): Remove.

2011-10-07  David S. Miller  <davem@davemloft.net>

        PR 50655
        * configure.ac: Add .register directives to VIS3 test.
        * configure: Regenerate.

2011-10-07  Richard Henderson  <rth@redhat.com>

        * config.gcc (x86_64-*): Add core-avx-i, core-avx2 for with_cpu.

2011-10-07  Richard Henderson  <rth@redhat.com>

        PR 49752
        * fold-const.c (fold_checksum_tree): Remove out-of-date assert.

2011-10-07  Andrew Stubbs  <ams@codesourcery.com>

        * config/arm/predicates.md (shift_amount_operand): Remove constant
        range check.
        (shift_operator): Check range of constants for all shift operators.

2011-10-07  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.c (s390_emit_tls_call_insn): Remove assertion.
        Load GOT pointer for non-pic builds.
        (s390_load_got): Replace pic_offset_table_rtx with hardcoded r12.
        (s390_emit_call): Likewise.

2011-10-07  Tom de Vries  <tom@codesourcery.com>

        PR middle-end/50527
        * tree.c (build_common_builtin_nodes): Add local_define_builtin for
        BUILT_IN_ALLOCA_WITH_ALIGN.  Mark that BUILT_IN_ALLOCA_WITH_ALIGN can
        throw.
        * builtins.c (expand_builtin_alloca): Handle BUILT_IN_ALLOCA_WITH_ALIGN
        arglist.  Set align for BUILT_IN_ALLOCA_WITH_ALIGN.
        (expand_builtin): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
        (is_inexpensive_builtin): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
        * tree-ssa-ccp.c (evaluate_stmt): Set align for
        BUILT_IN_ALLOCA_WITH_ALIGN.
        (fold_builtin_alloca_for_var): Rename to ...
        (fold_builtin_alloca_with_align): Set DECL_ALIGN from 2nd
        BUILT_IN_ALLOCA_WITH_ALIGN argument.
        (ccp_fold_stmt): Try folding BUILT_IN_ALLOCA_WITH_ALIGN using
        fold_builtin_alloca_with_align.
        (optimize_stack_restore): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
        * builtins.def (BUILT_IN_ALLOCA_WITH_ALIGN): Declare using
        DEF_BUILTIN_STUB.
        * ipa-pure-const.c (special_builtin_state): Handle
        BUILT_IN_ALLOCA_WITH_ALIGN.
        * tree-ssa-alias.c (ref_maybe_used_by_call_p_1)
        (call_may_clobber_ref_p_1): Same.
        * function.c (gimplify_parameters): Lower vla to
        BUILT_IN_ALLOCA_WITH_ALIGN.
        * gimplify.c (gimplify_vla_decl): Same.
        * cfgexpand.c (expand_call_stmt): Handle BUILT_IN_ALLOCA_WITH_ALIGN.
        * tree-mudflap.c (mf_xform_statements): Same.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary)
        (mark_all_reaching_defs_necessary_1, propagate_necessity): Same.
        * varasm.c (incorporeal_function_p): Same.
        * tree-object-size.c (alloc_object_size): Same.
        * gimple.c (gimple_build_call_from_tree): Same.

2011-10-07  Bernd Schmidt  <bernds@codesourcery.com>

        * function.c (frame_required_for_rtx): Remove function.
        (requires_stack_frame_p): New arg set_up_by_prologue.  All callers
        changed.  Compute a set of mentioned registers and compare against
        the new arg rather than calling frame_required_for_rtx.
        (thread_prologue_and_epilogue_insns): Compute the set_up_by_prologue
        reg set.  Convert the unconverted_simple_returns mechanism to store
        jump insns rather than their basic blocks.  Also check the
        orig_entry_edge destination for new blocks.

2011-10-07  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/50650
        * tree-vect-patterns.c (vect_recog_mixed_size_cond_pattern): Don't
        call vect_is_simple_cond here, instead fail if cond_expr isn't
        COMPARISON_CLASS_P or if get_vectype_for_scalar_type returns NULL
        for cond_expr's first operand.
        * tree-vect-stmts.c (vect_is_simple_cond): Static again.
        * tree-vectorizer.h (vect_is_simple_cond): Remove prototype.

2011-10-07  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/s390.md (DWH, dwh): New mode macros.
        ("umulsidi3"): Extend to support "umulditi3" as well.

2011-10-07  Uros Bizjak  <ubizjak@gmail.com>
            H.J. Lu  <hongjiu.lu@intel.com>

        PR target/50603
        * config/i386/i386.c (ix86_fixup_binary_operands): Force src2 of
        integer PLUS RTX to a register to improve address combine.

2011-10-06  Richard Henderson  <rth@redhat.com>

        * combine-stack-adjust.c (maybe_move_args_size_note): Add after
        parameter; use it to decide whether to merge two notes.
        (combine_stack_adjustments_for_block): Use maybe_move_args_size_note
        for the deallocation case as well.

2011-10-06  Anatoly Sokolov  <aesok@post.ru>

        * system.h (OUTPUT_ADDR_CONST_EXTRA): Poison.
        * doc/tm.texi.in (OUTPUT_ADDR_CONST_EXTRA): Remove documentation.
        * doc/tm.texi: Regenerate.
        * target.def (output_addr_const_extra): Use
        hook_bool_FILEptr_rtx_false.
        * targhooks.c (default_asm_output_addr_const_extra): Remove.
        * targhooks.h (default_asm_output_addr_const_extra): Remove.
        * hooks.c (hook_bool_FILEptr_rtx_false): New functions.
        * hooks.h (hook_bool_FILEptr_rtx_false): Declare.

2011-10-06  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (popcount<mode>2, clz<mode>2): Split up into...
        (popcountdi2, popcountsi2, clzdi2, clzsi2): Explicit expanders, in the
        SI mode 64-bit code gen case explicitly zero-extend and truncate.
        (*popcount<mode>_sp64): Split up into...
        (*popcountdi_sp64, *popcountsi_64): Explicit instantiations, and in the
        SImode case use truncate.
        (*clzsi_sp64): Rewrite to use truncate, and let the expander emit the
        subtract so the compiler can optimize it.
        (SIDI): Remove unused mode iterator.

2011-10-06  Bernd Schmidt  <bernds@codesourcery.com>

        * function.c (thread_prologue_and_epilogue_insns): Emit split prologue
        on the orig_entry_edge. Don't account for it in prologue_clobbered.

2011-10-06  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/50596
        * tree-vectorizer.h (vect_is_simple_cond): New prototype.
        (NUM_PATTERNS): Change to 6.
        * tree-vect-patterns.c (vect_recog_mixed_size_cond_pattern): New
        function.
        (vect_vect_recog_func_ptrs): Add vect_recog_mixed_size_cond_pattern.
        (vect_mark_pattern_stmts): Don't create stmt_vinfo for def_stmt
        if it already has one, and don't set STMT_VINFO_VECTYPE in it
        if it is already set.
        * tree-vect-stmts.c (vect_mark_stmts_to_be_vectorized): Handle
        COND_EXPR in pattern stmts.
        (vect_is_simple_cond): No longer static.

2001-10-06  Richard Henderson  <rth@redhat.com>

        * config/i386/i386.c (ix86_expand_vshuffle): Add AVX2 support.
        * config/i386/sse.md (sseshuffint): Remove.
        (sseintvecmode): Support V16HI, V8HI, V32QI, V16QI.
        (VSHUFFLE_AVX2): New mode iterator.
        (vshuffle<mode>): Use it.
        (avx_vec_concat<V_256>): Rename from *vec_concat<V_256>_avx.

        * config/i386/i386.c (ix86_expand_sse_movcc): Use correct mode
        for vector_all_ones_operand.
        (ix86_expand_int_vcond): Distinguish between comparison mode
        and data mode.  Allow them to differ.
        (ix86_expand_vshuffle): Don't force data mode to match maskmode.

2001-10-06  Richard Henderson  <rth@redhat.com>

        * optabs.c (expand_vec_shuffle_expr): Use the proper mode for the
        mask operand.  Tidy the code.

2011-10-06  Jakub Jelinek  <jakub@redhat.com>

        * tree-vect-patterns.c (vect_pattern_recog_1): Use
        vect_recog_func_ptr typedef for the first argument.
        (vect_pattern_recog): Rename vect_recog_func_ptr variable
        to vect_recog_func, use vect_recog_func_ptr typedef for it.

        PR tree-optimization/49279
        * tree-ssa-structalias.c (find_func_aliases): Don't handle
        CAST_RESTRICT.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Allow
        restrict propagation.
        * tree-ssa.c (useless_type_conversion_p): Don't return false
        if TYPE_RESTRICT differs.

2011-10-06  Bernd Schmidt  <bernds@codesourcery.com>

        * function.c (thread_prologue_and_epilogue_insns): Build a vector
        of unconverted simple return blocks rather than trying to
        recompute them later based on bb_flags bitmap tests.

2011-10-06  Michael Matz  <matz@suse.de>

        * tree-flow.h (get_var_ann): Don't declare.
        * tree-flow-inline.h (get_var_ann): Remove.
        (set_is_used): Use var_ann, not get_var_ann.
        * tree-dfa.c (add_referenced_var): Inline body of get_var_ann.
        * tree-profile.c (gimple_gen_edge_profiler): Call
        find_referenced_var_in.
        (gimple_gen_interval_profiler): Ditto.
        (gimple_gen_pow2_profiler): Ditto.
        (gimple_gen_one_value_profiler): Ditto.
        (gimple_gen_average_profiler): Ditto.
        (gimple_gen_ior_profiler): Ditto.
        (gimple_gen_ic_profiler): Ditto plus call add_referenced_var.
        (gimple_gen_ic_func_profiler): Call add_referenced_var.
        * tree-mudflap.c (execute_mudflap_function_ops): Call
        add_referenced_var.

2011-10-06  Jakub Jelinek  <jakub@redhat.com>

        * tree-vect-patterns.c (vect_handle_widen_mult_by_const): For lhs
        don't set SSA_NAME_DEF_STMT that has been already set by
        gimple_build_assign_with_ops.
        (vect_recog_pow_pattern, vect_recog_widen_sum_pattern,
        vect_operation_fits_smaller_type, vect_recog_over_widening_pattern):
        Likewise.

        * tree.h (avoid_folding_inline_builtin): New prototype.
        * builtins.c (avoid_folding_inline_builtin): No longer static.
        * gimple-fold.c (gimple_fold_builtin): Give up if
        avoid_folding_inline_builtin returns true.

2011-10-06  Richard Guenther  <rguenther@suse.de>

        * tree-vect-generic.c (vector_element): Look at previous
        generated results.

2011-10-06  David Edelsohn  <dje.gcc@gmail.com>

        PR target/39950
        * config/rs6000/aix.h (TARGET_OS_AIX_CPP_BUILTINS): Define
        __powerpc__, __PPC__, __unix__.

2011-10-06  Michael Matz  <matz@suse.de>

        * i386/i386.opt (recip_mask, recip_mask_explicit,
        x_recip_mask_explicit): New variables and cl_target member.
        (mrecip=): New option.
        * i386/i386.h (RECIP_MASK_DIV, RECIP_MASK_SQRT, RECIP_MASK_VEC_DIV,
        RECIP_MASK_VEC_SQRT, RECIP_MASK_ALL, RECIP_MASK_NONE): New bitmasks.
        (TARGET_RECIP_DIV, TARGET_RECIP_SQRT, TARGET_RECIP_VEC_DIV,
        TARGET_RECIP_VEC_SQRT): New tests.
        * i386/i386.md (divsf3): Check TARGET_RECIP_DIV.
        (sqrt<mode>2): Check TARGET_RECIP_SQRT.
        * i386/sse.md (div<mode>3): Check TARGET_RECIP_VEC_DIV.
        (sqrt<mode>2): Check TARGET_RECIP_VEC_SQRT.
        * i386/i386.c (ix86_option_override_internal): Set recip_mask
        for -mrecip and -mrecip=options.
        (ix86_function_specific_save): Save recip_mask_explicit.
        (ix86_function_specific_restore): Restore recip_mask_explicit.

        * doc/invoke.texi (ix86 Options): Document the new option.

2011-10-06  Bernd Schmidt  <bernds@codesourcery.com>

        PR target/49049
        * config/arm/arm.md (arm_subsi3_insn): Lose the last alternative.

2011-10-06  Ulrich Weigand  <ulrich.weigand@linaro.org>

        PR target/50305
        * config/arm/arm.c (arm_legitimize_reload_address): Recognize
        output of a previous pass through legitimize_reload_address.
        Do not attempt to optimize addresses if the base register is
        equivalent to a constant.

2011-10-06  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * function.c (thread_prologue_and_epilogue_insns): Mark
        last_bb_active as possibly unused.  It is unused for targets which
        do neither have "return" nor "simple_return" expanders.

2011-10-06  Richard Guenther  <rguenther@suse.de>

        * fold-const.c (fold_ternary_loc): Also fold non-constant
        vector CONSTRUCTORs.  Make more efficient.
        * tree-ssa-dom.c (cprop_operand): Don't handle virtual operands.
        (cprop_into_stmt): Don't propagate into virtual operands.
        (optimize_stmt): Really dump original statement.

2011-10-06  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (smin3): Revert previous delta.

2011-10-06  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38884
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Handle partial
        reads from aggregate SSA names.

2011-10-05  Jakub Jelinek  <jakub@redhat.com>

        * tree-vect-patterns.c (vect_pattern_recog_1): Add stmts_to_replace
        argument, truncate it at the beginning instead of allocating there
        and freeing at the end.
        (vect_pattern_recog): Allocate stmts_to_replace here and free at end,
        pass its address to vect_pattern_recog_1.

2011-10-05  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.opt (POPC): New option.
        * doc/invoke.texi: Document it.
        * config/sparc/sparc.c (sparc_option_override): Enable MASK_POPC by
        default on Niagara-2 and later.
        * config/sparc/sparc.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
        * config/sparc/sparc.md (SIDI): New mode iterator.
        (ffsdi2): Delete commented out pattern and comments.
        (popcount<mode>2, clz<mode>2): New expanders.
        (*popcount<mode>_sp64, popcountsi_v8plus, popcountdi_v8plus,
        *clzdi_sp64, clzdi_v8plus, *clzsi_sp64, clzsi_v8plus): New insns.

2011-10-06  Artjoms Sinkarovs  <artyom.shinkaroff@gmail.com>

        PR middle-end/50607
        * c-tree.h (c_expr_t): New typedef for struct c_expr.
        (C_EXPR_APPEND): New macro.
        * c-parser.c (c_parser_get_builtin_args): Preserve
        original_tree_code of c_expr structure.
        (c_parser_postfix_expression): Adjust to the new function.

2011-10-05  Bernd Schmidt  <bernds@codesourcery.com>

        * function.c (thread_prologue_and_epilogue_insns): Don't shrink-wrap
        if profiling after the prologue.

2011-10-05  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/50613
        * tree-ssa-strlen.c (find_equal_ptrs): If CASE_CONVERT
        operand is ADDR_EXPR, fallthru into ADDR_EXPR handling,
        and if it is neither that not SSA_NAME, give up.

2011-10-05  Richard Henderson  <rth@redhat.com>

        * tree-vect-generic.c (vector_element): Never fail.  Use
        build_zero_cst.  Tidy up type references.
        (lower_vec_shuffle): Never fail.  Mask shuffle indicies.  Reduce
        code duplication.  Do update_stmt here ...
        (expand_vector_operations_1): ... not here.

        * config/i386/i386.c (ix86_expand_vshuffle): Never fail.  Handle
        TARGET_XOP.  Fix pshufb constant vector creation.  Reduce code
        duplication.  Handle V2DI without SSE4.1.
        * config/i386/i386-protos.h (ix86_expand_vshuffle): Update decl.
        * config/i386/i386.md (vshuffle<V_128>): Remove assert for ok.

2011-10-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (distance_non_agu_define): Simplify calculation
        of "found".  Simplify return value calculation.
        (distance_agu_use): Ditto.

2011-10-05  Bernd Schmidt  <bernds@codesourcery.com>

        PR bootstrap/50621
        * config/i386/i386.c (ix86_add_cfa_restore_note): Omit notes only
        if the function was not shrink-wrapped.
        (ix86_expand_epilogue): Ensure queued cfa_adjust notes are attached
        to an insn.
        * function.c (thread_prologue_and_epilogue_insns): Make sure the
        shrink_wrapped flag is set even if there is no dump file.

2011-10-05  DJ Delorie  <dj@redhat.com>
            Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.opt (mpid): Define.
        * config/rx/t-rx (MULTILIB_OPTIONS): Add -mpid
        (MULTILIB_DIRNAMES): Add pid.
        * config/rx/rx.c (rx_gp_base_regnum_val, rx_pid_base_regnum_val)
        (rx_num_interrupt_regs): New variable.
        (rx_gp_base_regnum): New function.  Returns the number of the
        small data area register.
        (rx_pid_base_regnum): New function.  Returns the number of the pid
        base register.
        (rx_decl_for_addr): New function.  Returns the symbolic part of a MEM.
        (rx_pid_data_operand): New function.  Returns whether an object is
        in the position independent data area.
        (rx_legitimize_address): New function.  Puts undecided PID
        objects in the PID data area.
        (rx_is_legitimate_address): Add support for PID operands.
        (rx_print_operand_address): Likewise.
        (rx_print_operand): Likewise.
        (rx_maybe_pidify_operand): New function.  Determine if an operand
        is suitable for PID addressing.
        (rx_gen_move_template): Add PID support.
        (rx_conditional_register_usage): Likewise.
        (rx_option_override): Initialise rx_num_interrupt_regs.
        (rx_is_legitimate_constant): Add support for PID constants.
        (TARGET_LEGITIMIZE_ADDRESS): Define.
        * config/rx/constraints.md (Rpid): Define.
        (Rpda): Define.
        * config/rx/rx.md (UNSPEC_PID_ADDR): Define.
        (tablejump): Add PID support.
        (mov<>): Likewise.
        (mov<>_internal): Likewise.
        (addsi3): Convert to an expander.  Add PID support.
        (pid_addr): New pattern.
        * config/rx/rx.h (CPP_SPEC): Define.
        (ASM_SPEC): Pass -mpid and -mint-register on to assembler.
        (CASE_VECTOR_PC_RELATIVE): Define.
        (JUMP_TABLES_IN_TEXT_SECTION): Enable for PID mode.
        * config/rx/rx-protos.h (rx_maybe_pidify_operand): Prototype.
        * doc/invoke.texi (RX Options): Document -mpid command line option.

2011-10-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/38885
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Handle partial reads
        from constants.

2011-10-05  Bernd Schmidt  <bernds@codesourcery.com>

        * doc/invoke.texi (-fshrink-wrap): Document.
        * opts.c (default_options_table): Add it.
        * common.opt (fshrink-wrap): Add.
        * function.c (emit_return_into_block): Remove useless declaration.
        (record_hard_reg_uses_1, record_hard_reg_uses, frame_required_for_rtx,
        requires_stack_frame_p, gen_return_pattern): New static functions.
        (emit_return_into_block): New arg simple_p.  All callers changed.
        Use gen_return_pattern.
        (thread_prologue_and_epilogue_insns): Implement shrink-wrapping.
        * config/i386/i386.md (return): Expand into a simple_return.
        (simple_return): New expander):
        (simple_return_internal, simple_return_internal_long,
        simple_return_pop_internal_long, simple_return_indirect_internal):
        Renamed from return_internal, return_internal_long,
        return_pop_internal_long and return_indirect_internal; changed to use
        simple_return.
        * config/i386/i386.c (ix86_expand_epilogue): Adjust to expand
        simple returns.
        (ix86_pad_returns): Likewise.
        * function.h (struct rtl_data): Add member shrink_wrapped.
        * cfgcleanup.c (outgoing_edges_match): If shrink-wrapped, edges that
        are not jumps or sibcalls can't be compared.

2011-10-05  Richard Guenther  <rguenther@suse.de>

        * tree-ssa-sccvn.c (vn_get_expr_for): Handle CONSTRUCTOR of
        vector type.
        (simplify_unary_expression): Handle BIT_FIELD_REFs.
        (try_to_simplify): Handle BIT_FIELD_REFs.

2011-10-05  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr-protos.h (avr_out_addto_sp): New prototype.
        * config/avr/avr.c (avr_out_addto_sp): New function.
        (adjust_insn_length): Handle ADJUST_LEN_ADDTO_SP.
        * config/avr/avr.md (adjust_len): Add "addto_sp".
        (*movhi_sp): Remove insn.
        (*addhi3_sp_R_pc2, *addhi3_sp_R_pc3): Merge to *addhi3_sp_R.

2011-10-05  Richard Guenther  <rguenther@suse.de>

        * gimple-fold.c (gimple_fold_stmt_to_constant_1): For ternary ops
        with an embedded expression valueize and fold that as well.
        * tree-ssa-sccvn.c (try_to_simplify): Also allow SSA name
        results from gimple_fold_stmt_to_constant_1.

2011-10-05  Nick Clifton  <nickc@redhat.com>

        * config/rx/rx.md (tablejump): Add missing label.
        (adddi3_internal): Mark operand 0 as early-clobbered.
        (smaxsi3): Revert previous delta.
        (adc_internal): Fix whitespace in generated asm.
        (adc_flags): Likewise.

2011-10-05  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * expmed.c (expand_mult_highpart_optab): Replace optab_handler
        with the new widening_optab_handler.

2011-10-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50609
        * gimple-fold.c (fold_array_ctor_reference): Also handle
        vector typed constructors.
        (fold_ctor_reference): Dispatch to fold_array_ctor_reference
        for vector typed constructors.

2011-10-05  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.c (ix86_emit_binop): New static function.
        (ix86_split_lea_for_addr): Use ix86_emit_binop to emit add and shl
        instructions.
        (x86_output_mi_thunk): Use ix86_emit_binop to emit add instructions.

2011-10-04  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (UNSPEC_FHADD, UNSPEC_FHSUB,
        UNSPEC_XMUL): New unspecs.
        (muldi3_v8plus): Use output_v8plus_mult.
        (*naddsf3, *nadddf3, *nmulsf3, *nmuldf3, *nmuldf3_extend):
        New VIS 3.0 combiner patterns.
        (fhaddsf_vis, fhadddf_vis, fhsubsf_vis, fhsubdf_vis,
        fnhaddsf_vis, fnhaddf_vis, umulxhi_vis, *umulxhi_sp64,
        umulxhi_v8plus, xmulx_vis, *xmulx_sp64, xmulx_v8plus,
        xmulxhi_vis, *xmulxhi_sp64, xmulxhi_v8plus): New VIS 3.0
        builtins patterns.
        * config/sparc/sparc.c (sparc_vis_init_builtins): Emit new builtins.
        (output_v8plus_mult): New function.
        * config/sparc/sparc-protos.h: Declare it.
        * config/sparc/visintrin.h (__vis_fhadds, __vis_fhaddd,
        __vis_fhsubs, __vis_fhsubd, __vis_fnhadds, __vis_fnhaddd,
        __vis_umulxhi, __vis_xmulx, __vis_xmulxhi): New intrinsics.
        * doc/extend.texi: Document new builtins.

2011-10-04  Richard Henderson  <rth@redhat.com>

        * c-typeck.c (c_build_vec_shuffle_expr): Fix uninitialized variable.
        Avoid save_expr unless two_arguments.

2011-10-04  Ozkan Sezer  <sezeroz@gmail.com>

        * config/i386/mingw-w64.h (CPP_SPEC): Rename _REENTRANCE to _REENTRANT.
        * config/i386/mingw32.h (CPP_SPEC): Likewise.

2011-10-04  David S. Miller  <davem@davemloft.net>

        * config/sparc/driver-sparc.c (cpu_names): Fix string for supersparc
        under Linux.

2011-10-04  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/50604
        * builtins.c (fold_builtin_strcpy, fold_builtin_stpcpy,
        fold_builtin_strncpy, fold_builtin_stxcpy_chk): Ensure
        last argument to memcpy has size_type_node type instead of ssizetype.
        * tree-ssa-strlen.c (handle_builtin_memcpy): Use size_type_node
        instead of TREE_TYPE (len) as type for newlen.

        PR tree-optimization/50522
        * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Don't test
        TYPE_RESTRICT.
        (ptr_derefs_may_alias_p): Call pt_solutions_same_restrict_base
        unconditionally.

        * fold-const.c (fold_unary_loc): Don't optimize
        POINTER_PLUS_EXPR casted to TYPE_RESTRICT pointer by
        casting the inner pointer if it isn't TYPE_RESTRICT.
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Don't through
        casts from non-TYPE_RESTRICT pointer to TYPE_RESTRICT pointer.

2011-10-04  Joseph Myers  <joseph@codesourcery.com>

        * config.gcc (i[34567]86-*-elf*, x86_64-*-elf*): Use i386/t-crtstuff.

2011-10-04  Jan Hubicka  <jh@suse.cz>

        * lto-streamer.h (lto_input_toplevel_asms): Add order_base parameter.
        * lto-streamer-in.c (lto_input_toplevel_asms): Stream in order.
        * lto-streamer-out.c (lto_output_toplevel_asms): Stream out order.
        * lto-cgraph.c (order_base): New static var.
        (lto_output_node): Stream in order.
        (lto_output_varpool_node): Stream out order.
        (input_node): Stream in order.
        (input_varpool_node): Stream out order.
        (input_cgraph_1): Initialize order base; update call of
        lto_input_toplevel_asms.

2011-10-04  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50566
        * config/avr/avr-protos.h (avr_legitimize_reload_address): New
        prototype.
        * config/avr/avr.h (LEGITIMIZE_RELOAD_ADDRESS): Copy worker code
        from here...
        * config/avr/avr.c (avr_legitimize_reload_address) ...to this new
        function.  Log if avr_log.legitimize_reload_address.

2011-10-04  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/sparc.c (sparc_fold_builtin): Use a sequence of tests.

2011-10-04  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * longlong.h (smul_ppmm, sdiv_qrnnd): Add underscores to the local
        variables.  Fix second operand of DR.  Swap inputs for sdiv_qrnnd.

2011-10-03  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (fpack16_vis, fpackfix_vis, fpack32_vis): Make
        GSR_REG an input operand to UNSPEC instead of a parallel USE.
        (faligndata<V64I:mode>_vis): Likewise and use DI mode.
        (alignaddrsi_vis, alignaddrdi_vis, alignaddrlsi_vis, alignaddrldi_vis):
        Reference GSR_REG in DI mode, simplify convoluted expressions by using
        zero_extract.
        (bshuffle<V64I:mode>_vis): Reference GSR_REG in DI mode.

2011-10-03  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * tree-eh.c (remove_unreachable_handlers): Obvious cleanup.

2011-10-03  Jakub Jelinek  <jakub@redhat.com>
            Ian Lance Taylor  <iant@google.com>

        * godump.c (go_output_typedef): Support printing enum values that
        don't fit in a signed HOST_WIDE_INT.

2011-10-03  Anatoly Sokolov  <aesok@post.ru>

        * config/cris/cris.c (cris_output_addr_const_extra): Make static.
        (TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA): Define.
        * config/cris/cris.h (OUTPUT_ADDR_CONST_EXTRA): Remove.
        * config/cris/cris-protos.h (cris_output_addr_const_extra): Remove.

2011-10-03  Anatoly Sokolov  <aesok@post.ru>

        * config/m68k/m68k.c (m68k_output_addr_const_extra): Make static.
        (TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA): Define.
        * config/m68k/m68k.h (OUTPUT_ADDR_CONST_EXTRA): Remove.
        * config/m68k/m68k-protos.h (m68k_output_addr_const_extra): Remove.

2011-10-03  Steve Ellcey  <sje@cup.hp.com>

        PR target/49967
        * configure.ac (gcc_cv_ld_static_dynamic): Define for *-*-hpux*.
        (gcc_cv_ld_static_option): Ditto.
        (gcc_cv_ld_dynamic_option): Ditto.
        * configure: Regenerate.

2011-10-03  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (bmask<P:mode>_vis): Split into explicit 'di'
        and 'si' patterns which describe the GSR changes explicitly in the
        RTL using zero_extract.
        (bshuffle<V64I:mode>_vis): Put the GSR use inside of the unspec.

        * config/sparc/sparc.md (bshuffle<V64I:mode>_vis): Don't wrap
        GSR_REG in a USE, since it's now a true arg to the UNSPEC.

2011-10-03  Artjoms Sinkarovs  <artyom.shinkaroff@gmail.com>

        * optabs.c (expand_vec_shuffle_expr_p): New function. Checks
        if given expression can be expanded by the target.
        (expand_vec_shuffle_expr): New function. Expand VEC_SHUFFLE_EXPR
        using target vector instructions.
        * optabs.h: New optab vshuffle.
        (expand_vec_shuffle_expr_p): New prototype.
        (expand_vec_shuffle_expr): New prototype.
        (vshuffle_optab): New optab.
        * genopinit.c: Adjust to support vecshuffle.
        * c-tree.h (c_build_vec_shuffle_expr): New prototype.
        * expr.c (expand_expr_real_2): Adjust.
        * c-typeck.c: (c_build_vec_shuffle_expr): Build a VEC_SHUFFLE_EXPR
        recognizing the cases of two and three arguments.
        (convert_arguments) (build_binary_op)
        (scalar_to_vector) (build_array_ref): Spurious whitespace.
        * gimplify.c (gimplify_exp): Adjusted to support VEC_SHUFFLE_EXPR.
        * tree.def: New tree code VEC_SHUFFLE_EXPR.
        * tree-inline.c (estimate_operator_cost): Recognize VEC_SHUFFLE_EXPR.
        * tree-vect-generic.c (vector_element): New function. Returns an
        element of the vector at the given position.
        (lower_vec_shuffle): Checks if VEC_SHUFLLE_EXPR is supported
        by the backend or expand an expression piecewise.
        (expand_vector_operations_1): Adjusted.
        (gate_expand_vector_operations_noop): New gate function.
        * Makefile.in (tree-vect-generic.o): New include.
        * gimple.c (get_gimple_rhs_num_ops): Adjust.
        * tree-cfg.c (verify_gimple_assign_trenary): Verify VEC_SHUFFLE_EXPR.
        * passes.c: Move veclower down.
        * tree-pretty-print.c (dump_generic_node): Recognize
        VEC_SHUFFLE_EXPR as valid expression.
        * c-parser.c (c_parser_get_builtin_args): Helper function for the
        builtins with variable number of arguments.
        (c_parser_postfix_expression): Use a new helper function for
        RID_CHOOSE_EXPR, RID_BUILTIN_COMPLEX and RID_BUILTIN_SHUFFLE.
        * tree-ssa-operands: Adjust.
        * c-family/c-common.c: New __builtin_shuffle keyword.
        * c-family/c-common.h: New __builtin_shuffle keyword.
        * gcc/doc/extend.texi: Adjust.

        * gcc/config/i386/sse.md: (sseshuffint) New mode_attr.  Correspondence
        between the vector and the type of the mask when shuffling.
        (vecshuffle<mode>): New expansion.
        * gcc/config/i386/i386-protos.h (ix86_expand_vshuffle): New prototype.
        * gcc/config/i386/i386.c (ix86_expand_vshuffle): New function.
        (ix86_vectorize_builtin_vec_perm_ok): Adjust.

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

        PR tree-optimization/50587
        * tree-ssa-reassoc.c (init_range_entry): Stop iterating when
        arg0 is not a SSA_NAME.

2011-10-03  Richard Sandiford  <rdsandiford@googlemail.com>

        * ipa-inline-analysis.c (MAX_TIME): Update comment.

2011-10-02  Richard Henderson  <rth@redhat.com>
            David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (ashlsi3, *ashldi3_sp64): Remove
        conditional insn type setting, we always emit a shift.
        (*ashlsi3_extend, *lshrsi3_extend0): New patterns.
        (*lshrsi3_extend): Rename to *lshrsi3_extend1.
        * config/sparc/predicates.md (const_one_operand): Delete.

2011-10-02  Gerald Pfeifer  <gerald@pfeifer.com>

        * invoke.texi (SPARC Options): Refer to GNU/Linux.

2011-10-02  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_frame_barrier): New function.
        (mips_expand_prologue): Call it after allocating stack space.
        (mips_deallocate_stack): New function.
        (mips_expand_epilogue): Call mips_frame_barrier and
        mips_deallocate_stack.

2011-10-02  Richard Sandiford  <rdsandiford@googlemail.com>

        PR target/49696
        * config/mips/sync.md (sync_<optab>_12): Allow zero operands.
        (sync_old_<optab>_12, sync_new_<optab>_12, sync_nand_12): Likewise.
        (sync_old_nand_12, sync_new_nand_12, test_and_set_12): Likewise.

2011-10-02  Jan Hubicka  <jh@suse.cz>

        * cgraphunit.c (verify_edge_count_and_frequency): Bounds check.

        * cgraphunit.c (ipa_passes): Remove unrechable nodes.
        * lto-streamer-out.c (produce_symtab): Skip unused extern declarations.
        * ipa.c (cgraph_remove_unreachable_nodes): Do not assume that external
        functions are reachable when address is taken.
        * tree-sra.c (modify_function): Free dominance info.

2011-10-02  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-analysis.c (inline_summary_alloc): Bounds check.

        * ipa-inline-analysis.c (reset_inline_edge_summary): New function.
        (reset_inline_summary): New function.
        (compute_inline_parameters, inline_node_removal_hook,
        inline_edge_removal_hook): Use it.
        (inline_free_summary): Reset holders correctly.
        (inline_generate_summary): Free summary before computing it.

2011-10-02  Paolo Carlini  <paolo.carlini@oracle.com>

        PR preprocessor/36819
        * incpath.c (merge_include_chains): Call free_path on
        heads[QUOTE] and tails[QUOTE].

2011-10-02  Jan Hubicka  <jh@suse.cz>

        PR lto/47247
        * lto-symtab.c (lto_symtab_resolve_symbols): Do not resolve
        when resolution is already availbale from plugin.
        (lto_symtab_merge_decls_1): Handle LDPR_PREVAILING_DEF_IRONLY_EXP.
        * cgraph.c (ld_plugin_symbol_resolution): Add
        prevailing_def_ironly_exp.
        * lto-cgraph.c (LDPR_NUM_KNOWN): Update.
        * ipa.c (varpool_externally_visible_p): IRONLY variables are never
        externally visible.
        * varasm.c (resolution_to_local_definition_p): Add
        LDPR_PREVAILING_DEF_IRONLY_EXP.
        (resolution_local_p): Likewise.

2011-10-01  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.opt (VIS3): New option.
        * doc/invoke.texi: Document it.
        * config/sparc/sparc.h: Force TARGET_VIS3 to zero if assembler is
        not capable of such instructions.
        * config/sparc/sparc-c.c (sparc_target_macros): Define __VIS__
        to 0x300 when TARGET_VIS3.
        * config/sparc/sparc-modes.def: Create 16-byte vector modes.
        * config/sparc/sparc.md (UNSPEC_CMASK8, UNSPEC_CMASK16, UNSPEC_CMASK32,
        UNSPEC_FCHKSM16, UNSPEC_PDISTN, UNSPC_FUCMP): New unspecs.
        (V64N8, VASS): New mode iterators.
        (vis3_shift, vis3_addsub_ss): New code iterators.
        (vbits, vconstr): New mode attributes.
        (vis3_shift_insn, vis3_addsub_ss_insn): New code attributes.
        (cmask8<P:mode>_vis, cmask16<P:mode>_vis, cmask32<P:mode>_vis,
        fchksm16_vis, <vis3_shift_insn><vbits>_vis, pdistn<mode>_vis,
        fmean16_vis, fpadd64_vis, fpsub64_vis,
        <vis3_addsub_ss_insn><vbits>_vis, fucmp<code>8<P:mode>_vis): New
        VIS 3.0 instruction patterns.
        * config/sparc/sparc.c (sparc_option_override): Set MASK_VIS3 by
        default when targetting capable cpus.  TARGET_VIS3 implies
        TARGET_VIS2 and TARGET_VIS, and clear them when TARGET_FPU is disabled.
        (sparc_vis_init_builtins): Emit new VIS 3.0 builtins.
        (sparc_fold_builtin): Do not eliminate cmask{8,16,32} when result
        is ignored.
        * config/sparc/visintrin.h (__vis_cmask8, __vis_cmask16,
        __vis_cmask32, __vis_fchksm16, __vis_fsll16, __vis_fslas16,
        __vis_fsrl16, __vis_fsra16, __vis_fsll32, __vis_fslas32,
        __vis_fsrl32, __vis_fsra32, __vis_pdistn, __vis_fmean16,
        __vis_fpadd64, __vis_fpsub64, __vis_fpadds16, __vis_fpadds16s,
        __vis_fpsubs16, __vis_fpsubs16s, __vis_fpadds32, __vis_fpadds32s,
        __vis_fpsubs32, __vis_fpsubs32s, __vis_fucmple8, __vis_fucmpne8,
        __vis_fucmpgt8, __vis_fucmpeq8): New VIS 3.0 interfaces.
        * doc/extend.texi: Document new VIS 3.0 builtins.

2011-10-01  Eric Botcazou  <ebotcazou@adacore.com>

        * ira-color.c (assign_hard_reg): Fix typo.

2011-09-30  H.J. Lu  <hongjiu.lu@intel.com>

        * doc/extend.texi: Add missing ','.

2011-09-30  Bernd Schmidt  <bernds@codesourcery.com>

        * common/config/c6x/c6x-common.c (c6x_option_optimization_table):
        Enable -fmodulo-sched at -O2 and above.
        * config/c6x/c6x.md (doloop_end): New expander.
        (mvilc, sploop, spkernel, loop_end): New patterns.
        (loop_end with memory destination splitter): New.
        * config/c6x/c6x.c: Include "hw-doloop.h".
        (enum unitreqs): New.
        (unit_req_table): New typedef.
        (unit_reqs): New static variable.
        (unit_req_factor, get_unit_reqs, count_unit_reqs, merge_unit_reqs,
        res_mii, split_delayed_nonbranch, undo_split_delayed_nonbranch,
        hwloop_pattern_reg, bb_earliest_end_cycle, filter_insns_above,
        hwloop_optimize, hwloop_fail, c6x_hwloops): New static functions.
        (struct c6x_sched_context): New member last_scheduled_iter0.
        (init_sched_state): Initialize it.
        (c6x_variable_issue): Update it.
        (sploop_max_uid_iter0): New static variable.
        (c6x_sched_reorder_1): Be careful about issuing sploop.
        (c6x_reorg): Call c6x_hwlooops before the final schedule.

2011-09-30  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50566
        * config/avr/avr-protos.h (avr_log_t): New field address_cost.
        * config/avr/avr.c (avr_address_cost): Use it.
        * config/avr/avr-log.c (avr_log_set_avr_log): Initialize it.
        (avr_log_vadump): Unknown %-codes finish printing.

2011-09-30  Jakub Jelinek  <jakub@redhat.com>

        PR inline-asm/50571
        * gimple-fold.c (fold_stmt_1) <case GIMPLE_ASM>: If
        input constraints allow mem and not reg, pass true instead of
        false as second argument to maybe_fold_reference.

        PR tree-optimization/46309
        * fold-const.c (make_range, merge_ranges): Remove prototypes.
        (make_range_step): New function.
        (make_range): Use it.
        * tree.h (make_range_step): New prototypes.
        * Makefile.in (tree-ssa-reassoc.o): Depend on $(DIAGNOSTIC_CORE_H).
        * tree-ssa-reassoc.c: Include diagnostic-core.h.
        (struct range_entry): New type.
        (init_range_entry, range_entry_cmp, update_range_test,
        optimize_range_tests): New functions.
        (reassociate_bb): Call optimize_range_tests.

2011-09-30  Jakub Jelinek  <jakub@redhat.com>
            Richard Guenther  <rguenther@suse.de>

        * tree-ssa-structalias.c (find_func_aliases_for_builtin_call): Handle
        BUILT_IN_STRDUP and BUILT_IN_STRNDUP.
        * tree-ssa-alias.c (call_may_clobber_ref_p_1): Likewise.  Fix
        handling of BUILT_IN_STRNCAT and BUILT_IN_STRNCAT_CHK.
        (ref_maybe_used_by_call_p_1): Fix handling of BUILT_IN_STRCAT,
        BUILT_IN_STRNCAT, BUILT_IN_STRCAT_CHK and BUILT_IN_STRNCAT_CHK.

2011-09-30  Jan Beulich  <jbeulich@suse.com>

        * lto-cgraph.c (output_cgraph): Remove processing of
        'cgraph_asm_nodes', call lto_output_toplevel_asms() instead.
        (input_cgraph_1): Remove loop calling cgraph_add_asm_node(), call
        lto_input_toplevel_asms() instead.
        * lto-section-in.c (lto_section_name): Add "asm" entry.
        * lto-streamer-in.c (lto_input_toplevel_asms): New.
        * lto-streamer-out.c (lto_output_toplevel_asms): New.
        * lto-streamer.h (LTO_minor_version): Bump.
        (enum lto_section_type): Add LTO_section_asm.
        (struct lto_asm_header): New.
        (lto_input_toplevel_asms, lto_output_toplevel_asms): Declare.
        * tree-streamer.h (streamer_write_string_cst): Declare.
        * tree-streamer-out.c (write_string_cst): Rename to
        streamer_write_string_cst and make global. Handle incoming string
        being NULL.
        (streamer_write_tree_header): Adjust call to renamed function.

2011-09-30  Bernd Schmidt  <bernds@codesourcery.com>

        * haifa-sched.c (modulo_ii, modulo_max_states, modulo_n_insns,
        modulo_insns_scheduled, modulo_iter0_max_uid, modulo_backtracks_left,
        modulo_last_stage): New static variables.
        (set_modulo_params, discard_delay_pairs_above): New functions.
        (struct delay_pair): New member stages.
        (htab_i2_traverse, htab_i1_traverse): New static functions.
        (record_delay_slot_pair): New arg stages.  All callers changed.
        Record it.
        (pair_delay): Take stages into account.
        (add_delay_dependencies): Don't do so for stage pairs.
        (struct sched_block_state): New member modulo_epilogue.
        (save_backtrack_point): Don't set SHADOW_P for stage pairs.
        (unschedule_insns_until): Decrease modulo_insns_scheduled.
        Set HARD_DEP without using or.
        (resolve_dependencies): New static function.
        (prune_ready_list): New arg modulo_epilogue_p.  All callers changed.
        If it is true, allow only insns with INSN_EXACT_TICK set.
        (schedule_block): Return bool, always true for normal scheduling,
        true or false depending on modulo scheduling success otherwise.
        Add bookkeeping for modulo scheduling, and call resolve_dependencies
        on everything left over after a modulo schedule.
        (haifa_sched_init): Remove check_cfg call.  Clear modulo_ii.
        * sched-int.h (schedule_block, record_delay_slot_pair): Adjust
        declarations.
        (set_modulo_params, discard_delay_pairs_above): Declare.
        * params.def (PARAM_MAX_MODULO_BACKTRACK_ATTEMPS): New.
        * doc/invoke.texi (--param): Document it.

        * sched-ebb.c (schedule_ebb): No longer static.  Remove declaration.
        New arg modulo_scheduling.  All callers changed.  Move note handling
        code here from schedule_ebbs.
        (schedule_ebbs_finish, schedule_ebbs_init): New functions, broken
        out of schedule_ebbs.
        (schedule_ebbs): Call them.  Remove note handling code moved to
        schedule_ebb.
        * sched-int.h (schedule_ebb, schedule_ebbs_init,
        schedule_ebbs_finish): Declare.

2011-09-30  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50574
        * tree-cfg.c (verify_gimple_comparison): Compare component
        mode sizes for vector comparisons.

2011-09-30  Revital Eres  <revital.eres@linaro.org>

        * ddg.c (autoinc_var_is_used_p): New function.
        (create_ddg_dep_from_intra_loop_link,
        add_cross_iteration_register_deps): Call it.
        * ddg.h (autoinc_var_is_used_p): Declare.
        * modulo-sched.c (generate_reg_moves): Call autoinc_var_is_used_p.
        (sms_schedule): Handle instructions with REG_INC.

2011-09-30  Revital Eres  <revital.eres@linaro.org>

        * modulo-sched.c (generate_reg_moves): Skip instructions that
        do not set a register and verify no regmoves are created for
        !single_set instructions.

2011-09-30  Bernd Schmidt  <bernds@codesourcery.com>

        * hw-doloop.c (scan_loop): Compute register usage only for non-debug
        insns.

2011-09-30  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/50099
        * config/arm/iterators.md (qhs_zextenddi_cstr): New.
        (qhs_zextenddi_op): New.
        * config/arm/arm.md ("zero_extend<mode>di2"): Use them.
        * config/arm/predicates.md ("arm_extendqisi_mem_op"):
        Distinguish between ARM and Thumb2 states.

2011-09-30  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.opt (VIS2): New option.
        * doc/invoke.texi: Document it.
        * config/sparc/sparc.md (UNSPEC_EDGE8N, UNSPEC_EDGE8LN,
        UNSPEC_EDGE16N, UNSPEC_EDGE16LN, UNSPEC_EDGE32N,
        UNSPEC_EDGE32LN, UNSPEC_BSHUFFLE): New unspecs.
        (define_attr type): New insn type 'edgen'.
        (bmask<P:mode>_vis, bshuffle<V64I:mode>_vis, edge8n<P:mode>_vis,
        edge8ln<P:mode>_vis, edge16n<P:mode>_vis, edge16ln<P:mode>_vis,
        edge32n<P:mode>_vis, edge32ln<P:mode>_vis): New insn VIS 2.0
        patterns.
        * niagara.md: Handle edgen.
        * niagara2.md: Likewise.
        * ultra1_2.md: Likewise.
        * ultra3.md: Likewise.
        * config/sparc/sparc-c.c (sparc_target_macros): Define __VIS__
        to 0x200 when TARGET_VIS2.
        * config/sparc/sparc.c (sparc_option_override): Set MASK_VIS2 by
        default when targetting capable cpus.  TARGET_VIS2 implies
        TARGET_VIS, clear and it when TARGET_FPU is disabled.
        (sparc_vis_init_builtins): Emit new VIS 2.0 builtins.
        (sparc_expand_builtin): Fix predicate indexing when builtin returns
        void.
        (sparc_fold_builtin): Do not eliminate bmask when result is ignored.
        * config/sparc/visintrin.h (__vis_bmask, __vis_bshuffledi,
        __vis_bshufflev2si, __vis_bshufflev4hi, __vis_bshufflev8qi,
        __vis_edge8n, __vis_edge8ln, __vis_edge16n, __vis_edge16ln,
        __vis_edge32n, __vis_edge32ln): New VIS 2.0 interfaces.
        * doc/extend.texi: Document new VIS 2.0 builtins.

2011-09-29  Nick Clifton  <nickc@redhat.com>
            Bernd Schmidt  <bernds@codesourcery.com>

        * config/frv/frvbegin.c: Fix location of unwind-dw2-fde.h header file.
        * config/frv/frvend.c: Likewise.
        * config/frv/frv.c (frv_function_prologue): Move misplaced
        CALL_ARG_LOCATION notes back to their proper locations.

2011-09-29  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50566
        * config/avr/avr-log.c (avr_log_vadump): Use %b to print bool.
        * config/avr/avr.c (avr_rtx_costs_1): New static function, renamed
        from avr_rtx_costs.
        (avr_legitimate_address_p): Use avr_edump to print log information
        filtered by avr_log.
        (extra_constraint_Q): Ditto.
        (avr_legitimize_address): Ditto.
        (avr_rtx_costs): Ditto.  Rewrite as wrapper for avr_rtx_costs_1.
        (final_prescan_insn): Use avr_log.rtx_costs as filter.

2011-09-29  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/arm/arm-protos.h (arm_modes_tieable_p): Declare.
        * config/arm/arm.h (MODES_TIEABLE_P): Use it.
        * config/arm/arm.c (arm_modes_tieable_p): New function.  Allow
        NEON vector and structure modes to be tied.

2011-09-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

        * graphite-scop-detection.c (make_close_phi_nodes_unique):  New
        forward declaration.
        (remove_duplicate_close_phi): Detect and repair creation of
        duplicate close-phis for a containing loop.

2011-09-27   Andi Kleen <ak@linux.intel.com>

        * gcc.c (get_local_tick). Rename to get_random_number.  Read from
        /dev/urandom.  Add getpid call.
        (compare_debug_dump_opt_spec_function): Drop getpid call.

2011-09-26   Andi Kleen <ak@linux.intel.com>

        * toplev.c (init_local_tick): Try reading random seed
        from /dev/urandom.

2011-09-26   Andi Kleen <ak@linux.intel.com>

        * hwint.h (HOST_WIDE_INT_PRINT_HEX_PURE): Add.
        * lto-streamer.c (lto_get_section_name): Remove crc32_string.
        Handle numerical random seed.
        * lto-streamer.h (lto_file_decl_data): Change id to
        unsigned HOST_WIDE_INT.
        * toplev.c (random_seed): Add.
        (init_random_seed): Change for numerical random seed.
        (get_random_seed): Return as HOST_WIDE_INT.
        (set_random_seed): Crc32 existing string.
        * toplev.h (get_random_seed): Change to numercal return.
        * tree.c (get_file_function_name): Remove CRC. Handle
        numerical random seed.

2011-09-29  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50566
        * config.gcc (extra_objs): Add avr-log.o for $target in:
        avr-*-rtems*, avr-*-*.
        * config/avr/t-avr (avr-log.o): New rule to compile...
        * config/avr/avr-log.c: ...this new file.
        * config/avr/avr.opt (mlog=): New option.
        * config/avr/avr-protos.h (avr_edump, avr_fdump): New macros.
        (avr_log_set_caller_e, avr_log_set_caller_f): New prototypes.
        (avr_log_set_avr_log): New prototype.
        (avr_log_t): New typedef.
        (avr_log): New declaration.
        * config/avr/avr.c (avr_option_override): Call avr_log_set_avr_log.

2011-09-29  Artjoms Sinkarovs <artyom.shinkaroff@gmail.com>

        * expr.c (do_store_flag): Expand vector comparison by
        building an appropriate VEC_COND_EXPR.
        * c-typeck.c (build_binary_op): Typecheck vector comparisons.
        (c_objc_common_truthvalue_conversion): Adjust.
        * tree-vect-generic.c (do_compare): Helper function.
        (expand_vector_comparison): Check if hardware supports
        vector comparison of the given type or expand vector piecewise.
        (expand_vector_operation): Treat comparison as binary
        operation of vector type.
        (expand_vector_operations_1): Adjust.

2011-09-29  Richard Guenther  <rguenther@suse.de>

        * tree.c (build_opaque_vector_type): Make opaque vectors
        variant types of the corresponding non-opaque type.  Make
        sure to share opaque vector types properly.

2011-09-29  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (UNSPEC_ARRAY8, UNSPEC_ARRAY16,
        UNSPEC_ARRAY32): New unspec.
        (define_attr type): New type 'array'.
        (array{8,16,32}<P:mode>_vis): New patterns.
        * config/sparc/ultra1_2.md: Add reservations for 'array'.
        * config/sparc/ultra3.md: Likewise.
        * config/sparc/niagara.md: Likewise.
        * config/sparc/niagara2.md: Likewise.
        * config/sparc/sparc.c (sparc_vis_init_builtins): Build new
        array builtins.
        * config/sparc/visintrin.h (__vis_array8, __vis_array16,
        __vis_array32): New.
        * doc/extend.texi: Document new VIS builtins.

        * config/sparc/sparc.md (gcond_name): Delete unnecessary code attr.
        (VIS pixel-compare insn): Just use <gcond:name>.

        * config/sparc/sparc.md (VIS pixel-compare insn): There is only one
        code iterator used, so just use <code>.  There are two mode iterators
        so explicitly use <GCM:gcm_name>.

2011-09-29  Iain Sandoe  <iains@gcc.gnu.org>

        * config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Enable for
        Darwin >= 9.

2011-09-28  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (UNSPEC_FCMPLE, UNSPEC_FCMPNE,
        UNSPEC_FCMPGT, UNSPEC_FCMPEQ): Delete and reduce to...
        (UNSPEC_FCMP): New unspec.
        (gcond): New code iterator.
        (gcond_name): New code attr.
        (GCM): New mode iterator.
        (gcm_name): New mode attr.
        (fcmp{le,ne,gt,eq}{16,32}_vis): Reimplement using iterators.

2011-09-28  Oleg Endo  <oleg.endo@t-online.de>

        PR target/49486
        * config/sh/sh.md (negdi2): Move expansion into split to
        allow more combination options.  Add T_REG clobber.
        (abssi2): New expander.
        (*negdi2, *abssi2, *negabssi2): New insns.
        (cneg): Change from insn to insn_and_split.  Rename to
        negsi_cond.  Add alternative for non-SH4.

2011-09-28  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/arm/neon.md (neon_move_lo_quad_<mode>): Delete.
        (neon_move_hi_quad_<mode>): Likewise.
        (move_hi_quad_<mode>, move_lo_quad_<mode>): Use subreg moves.

2011-09-28  Nick Clifton  <nickc@redhat.com>

        * config/rx/predicates.md (rx_minmax_operand): New predicate.
        Accepts immediates and a restricted subset of MEMs.
        * config/rx/rx.md (int_modes): New iterator.
        (smaxsi3, sminsi3): Delete and replace with...
        (smax<int_mode>3, smin<int_mode>3): New patterns.
        (umax<>3_u, umax<>3_ur, umax<>3, umin<>3): New patterns.

2011-09-28  Richard Guenther  <rguenther@suse.de>

        PR middle-end/50460
        * fold-const.c (try_move_mult_to_index): Handle &a.array the
        same as &a.array[0].

2011-09-28  Kai Tietz  <ktietz@redhat.com>

        * configure.ac: Add test for new section attribute
        specifier "e" via define HAVE_GAS_SECTION_EXCLUDE.
        * config.in: Regenerated.
        * configure: Regenerated.
        * config/i386/winnt.c (i386_pe_asm_named_section): Emit
        new section flag "e" for excluded sections, if supported.
        Otherwise we mark section withc SECTION_EXCLUDE flag as never-load.

2011-09-28  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/m32r/m32r.md: Use match_test rather than eq/ne symbol_ref
        throughout file.

2011-09-28  Richard Sandiford  <rdsandiford@googlemail.com>

        * config/iq2000/iq2000.md: Use match_test rather than eq/ne symbol_ref
        throughout file.

2011-09-27  Sriraman Tallam  <tmsriram@google.com>

        * output.h (SECTION_EXCLUDE): New macro.
        * varasm.c (default_elf_asm_named_section): Check for SECTION_EXCLUDE.

2011-09-27  Richard Sandiford  <rdsandiford@googlemail.com>

        * fwprop.c (forward_propagate_and_simplify): After checking
        reg/subreg combinations, check whether the modes are the same.

2011-09-27  Bernd Schmidt  <bernds@codesourcery.com>
            Richard Sandiford  <rdsandiford@googlemail.com>

        * config/mips/mips.c (mips_add_cfa_restore): New function.
        (mips16e_save_restore_reg): Use it.
        (mips_restore_reg): Likewise.  Split double FPRs for
        REG_CFA_RESTORE notes.

2011-09-27  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/50386
        PR middle-end/50326
        * tree-sra.c (build_ref_for_model): Use the type of the field as
        the type of the COMPONENT_REF.

2011-09-27  Jeff Law  <law@redhat.com>

        * ifcvt.c (cheap_bb_rtx_cost_p): Add SCALE argument.  Scale
        non-jumping insns by REG_BR_PROB_BASE and the maximum cost by SCALE.
        (find_if_case_1): Use the probability of the THEN clause when
        determining if speculation is profitable.
        (find_if_case_2): Similarly for the ELSE clause.

2011-09-27  Jakub Jelinek  <jakub@redhat.com>

        * common.opt: Add -foptimize-strlen option.
        * Makefile.in (OBJS): Add tree-ssa-strlen.o.
        (tree-sssa-strlen.o): Add dependencies.
        * opts.c (default_options_table): Enable -foptimize-strlen
        by default at -O2 if not -Os.
        * passes.c (init_optimization_passes): Add pass_strlen
        after pass_object_sizes.
        * timevar.def (TV_TREE_STRLEN): New timevar.
        * params.def (PARAM_MAX_TRACKED_STRLENS): New parameter.
        * tree-pass.h (pass_strlen): Declare.
        * tree-ssa-strlen.c: New file.
        * c-decl.c (merge_decls): If compatible stpcpy prototype
        is seen, set implicit_built_in_decls[BUILT_IN_STPCPY].

2011-09-27  Tom de Vries  <tom@codesourcery.com>

        PR middle-end/43864
        * tree-ssa-tail-merge.c: New file.
        (struct same_succ_def): Define.
        (same_succ, const_same_succ): New typedef.
        (struct bb_cluster_def): Define.
        (bb_cluster, const_bb_cluster): New typedef.
        (struct aux_bb_info): Define.
        (BB_SIZE, BB_SAME_SUCC, BB_CLUSTER, BB_VOP_AT_EXIT): Define.
        (gvn_uses_equal): New function.
        (same_succ_print, same_succ_print_traverse, update_dep_bb)
        (stmt_update_dep_bb, local_def, same_succ_hash)
        (inverse_flags, same_succ_equal, same_succ_alloc, same_succ_delete)
        (same_succ_reset): New function.
        (same_succ_htab, same_succ_edge_flags)
        (deleted_bbs, deleted_bb_preds): New var.
        (debug_same_succ): New function.
        (worklist): New var.
        (print_worklist, add_to_worklist, find_same_succ_bb, find_same_succ)
        (init_worklist, delete_worklist, delete_basic_block_same_succ)
        (same_succ_flush_bbs, purge_bbs, update_worklist): New function.
        (print_cluster, debug_cluster, update_rep_bb)
        (add_bb_to_cluster, new_cluster, delete_cluster): New function.
        (all_clusters): New var.
        (alloc_cluster_vectors, reset_cluster_vectors, delete_cluster_vectors)
        (merge_clusters, set_cluster): New function.
        (gimple_equal_p, gsi_advance_bw_nondebug_nonlocal, find_duplicate)
        (same_phi_alternatives_1, same_phi_alternatives, bb_has_non_vop_phi)
        (deps_ok_for_redirect_from_bb_to_bb, deps_ok_for_redirect)
        (find_clusters_1, find_clusters): New function.
        (update_vuses, vop_phi, vop_at_entry, replace_block_by): New function.
        (update_bbs): New var.
        (apply_clusters): New function.
        (update_debug_stmt, update_debug_stmts): New function.
        (tail_merge_optimize): New function.
        tree-pass.h (tail_merge_optimize): Declare.
        * tree-ssa-pre.c (execute_pre): Use tail_merge_optimize.
        * Makefile.in (OBJS-common): Add tree-ssa-tail-merge.o.
        (tree-ssa-tail-merge.o): New rule.
        * opts.c (default_options_table): Set OPT_ftree_tail_merge by
        default at OPT_LEVELS_2_PLUS.
        * tree-ssa-sccvn.c (vn_valueize): Move to ...
        * tree-ssa-sccvn.h (vn_valueize): Here.
        * timevar.def (TV_TREE_TAIL_MERGE): New timevar.
        * common.opt (ftree-tail-merge): New switch.
        * params.def (PARAM_MAX_TAIL_MERGE_COMPARISONS)
        (PARAM_MAX_TAIL_MERGE_ITERATIONS): New parameter.
        * doc/invoke.texi (Optimization Options, -O2): Add -ftree-tail-merge.
        (-ftree-tail-merge, max-tail-merge-comparisons)
        (max-tail-merge-iterations): New item.

2011-09-27  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-analysis.c (MAX_TIME): Reduce to avoid overflows.

2011-09-27  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-analysis.c (eliminated_by_inlining_prob): Handle
        parameters passed by reference; handle loads from non-SSA scalars
        and update comments.

2011-09-27  Bernd Schmidt  <bernds@codesourcery.com>

        PR rtl-optimization/50249
        * reload1.c (reload_reg_reaches_end_p): Accept a reloadnum argument
        instead of opnum and type.  All callers changed.  Remove useless
        declaration.
        Search forward for other reloads of the same type for the same operand
        using the same register; if any are found, return false.
        (reload_regs_reach_end_p): Same argument changes; all callers changed.

2011-09-27  Andi Kleen  <ak@linux.intel.com>
            Jan Hubicka  <jh@suse.cz>

        * doc/invoke.texi (ffat-lto-objects): Document.
        * toplev.c (compile_file): Do not output assembly when doing slim lto;
        Output __gnu_slim_lto when doing slim lto.
        * cgraphunit.c (ipa_passes): Do only analysis when producing slim lto.
        (cgraph_optimize): Return early when doing slim lto.
        * opts.c (finish_options): Complain about lack of linker plugin
        when doing slim lto.
        * common.opt (ffat-lto-objects): New.

2011-09-27  Richard Sandiford  <richard.sandiford@linaro.org>

        * ipa-inline-analysis.c (predicate_probability): Avoid comparison
        between signed and unsigned.

2011-09-27  Ira Rosen  <ira.rosen@linaro.org>

        * tree-vect-stmts.c (vectorizable_type_demotion): Handle basic block
        vectorization.
        (vectorizable_type_promotion): Likewise.
        (vect_analyze_stmt): Call vectorizable_type_demotion and
        vectorizable_type_promotion for basic blocks.
        (supportable_widening_operation): Don't assume loop vectorization.
        * tree-vect-slp.c (vect_build_slp_tree): Allow multiple types for
        basic blocks.  Update vectorization factor for basic block
        vectorization.
        (vect_analyze_slp_instance): Allow multiple types for basic block
        vectorization.  Recheck unrolling factor after construction of SLP
        instance.

2011-09-27  Richard Guenther  <rguenther@suse.de>

        * tree-object-size.c (compute_object_sizes): Fix dumping of
        folded statement.

2011-09-27  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50363
        * tree-ssa-pre.c (create_expression_by_pieces): Handle
        pointer conversions in POINTER_PLUS_EXPRs properly.

2011-09-27  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/arm/neon.md (neon_vget_highv16qi, neon_vget_highv8hi)
        (neon_vget_highv4si, neon_vget_highv4sf, neon_vget_highv2di)
        (neon_vget_lowv16qi, neon_vget_lowv8hi, neon_vget_lowv4si)
        (neon_vget_lowv4sf, neon_vget_lowv2di): Turn into define_expands
        that produce subreg moves.  Define using VQX iterators.

2011-09-27  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (ashrqi3): Split alternative "n"
        into its remaining parts C03, C04, C05, C06, C07 and describe
        impact in CC by attribute "cc" appropriately.
        * config/avr/avr.c (notice_update_cc): Clean-up: Don't patch CC0
        by digging RTX.

2011-09-27  Jakub Jelinek  <jakub@redhat.com>

        * rtl.h (const_tiny_rtx): Change into array of 4 x MAX_MACHINE_MODE
        from 3 x MAX_MACHINE_MODE.
        (CONSTM1_RTX): Define.
        * emit-rtl.c (const_tiny_rtx): Change into array of
        4 x MAX_MACHINE_MODE from 3 x MAX_MACHINE_MODE.
        (gen_rtx_CONST_VECTOR): Use CONSTM1_RTX if all inner constants are
        CONSTM1_RTX.
        (init_emit_once): Initialize CONSTM1_RTX for MODE_INT and
        MODE_VECTOR_INT modes.
        * simplify-rtx.c (simplify_binary_operation_1) <case IOR, XOR, AND>:
        Optimize if one operand is CONSTM1_RTX.
        * config/i386/i386.c (ix86_expand_sse_movcc): Optimize mask ? -1 : x
        into mask | x.

2011-09-26  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (edge{8,16,32}{,l}): Return Pmode.
        (fcmp{le,ne,gt,eq}{16,32}): Likewise.
        * config/sparc/visintrin.h: Update edge and pixel-compare
        intrinsics to return 'long' instead of 'int'.
        * doc/extend.texi: Update documentation to match.
        * config/sparc/sparc.c (eligible_for_return_delay): When leaf or
        flat, allow any instruction.  Otherwise, when V9 allow parallels
        which consist only of sets to registers outside of %o0 to %o5.
        (sparc_vis_init_builtins): Update VIS builtin types for edge
        and pixel-compare.

        * config/sparc/sparc.c (sparc_conditional_register_usage): When VIS
        is enabled, mark %gsr as global.
        * config/sparc/sparc.md (UNSPEC_WRGSR): Delete.
        (wrgsr_vis, *wrgsr_sp64, wrgsr_v8plus): Don't wrap in an unspec.

        * config/sparc/sparc-c.c: New file implementing sparc_target_macros,
        which will now define __VIS and __VIS__ when -mvis is enabled.
        * config/sparc/t-sparc: Likewise.
        * config.gcc: Add sparc-c.o to c_target_objs and cxx_target_objs,
        and add t-sparc to tmake_file for all sparc targets.
        * config/sparc/sparc-protos.h (sparc_target_macros): Declare.
        * config/sparc/sparc.h (TARGE_CPU_CPP_BUILTINS): Call it.

        * config/sparc/sparc.c (sparc_vis_init_builtins): Add explicit
        builtins for VIS vector addition and subtraction.
        * config/sparc/visintrin.h (__vis_fpadd16, __vis_fpadd16s,
        __vis_fpadd32, __vis_fpadd32s, __vis_fpsub16, __vis_fpsub16s,
        __vis_fpsub32, __vis_fpsub32s): New.
        * doc/extend.texi: Document new VIS intrinsics.

2011-09-26  Georg-Johann Lay  <avr@gjlay.de>

        * config/avr/avr.md (peephole casesi+2): Use -1 instead of 65536.
        * config/avr/avr.c (avr_out_compare): Print shorter sequence for
        EQ/NE comparisons against +/-1 in the case of unused-after,
        non-ld-regs target.

2011-09-26  Jakub Jelinek  <jakub@redhat.com>

        * gimple-fold.c (gimplify_and_update_call_from_tree): Set