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

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
        gctx.into_ssa after push_gimplify_context.

        * gimple.c (gimple_build_call_valist): New function.
        * gimple.h (gimple_build_call_valist): New prototype.
        * tree-ssa-propagate.c (finish_update_gimple_call): New function.
        (update_gimple_call): Likewise.
        (update_call_from_tree): Use finish_update_gimple_call.
        * tree-ssa-propagate.h (update_gimple_call): New prototype.

2011-09-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/50472
        * gimple-fold.c (fold_const_aggregate_ref_1): Do not fold
        volatile references.

2011-09-26  Bingfeng Mei <bmei@broadcom.com>

        * doc/tm.texi: Correct documentation for TARGET_ADDR_SPACE_SUBSET_P.
        * target.def: (addr_space_subset_p): Likewise.

2011-09-26  Tom de Vries  <tom@codesourcery.com>

        * tree-ssa-alias.h (pt_solution_singleton_p): Declare.
        * tree-ssa-structalias.c (pt_solution_singleton_p): New function.
        * tree-ssa-ccp.c (fold_builtin_alloca_for_var): Set points-to solution
        of new var.

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

        PR target/50465
        * config/avr/avr-protos.h (output_reload_insisf): Don't pass insn.
        * config/avr/avr.md (*reload_insi, *reload_insf): Change call to
        output_reload_insisf.
        (adjust_len): Set default to "no".
        Remove alternative "yes".  Add alternatives: "mov8", "mov16",
        "mov32", "ashlqi", "ashrqi", "lshrqi", "ashlhi", "ashrhi",
        "lshrhi", "ashlsi, "ashrsi", "lshrsi".
        (*movqi, *movhi, *movsi, *ashlqi3, ashlhi3, ashlsi3,
        *ashlhi3_const, *ashlsi3_const, ashrqi3, ashrhi3, ashrsi3,
        *ashrhi3_const, *ashrsi3_const, *lshrqi3, lshrhi3, *lshrhi3_const,
        *lshrsi3_const): Set attribute "adjust_len".
        * config/avr/avr.c (output_reload_insisf): Remove parameter "insn".
        (output_movsisf): Don't pass insn to output_reload_insisf.
        (adjust_insn_length): Handle new alternatives to adjust_len.
        Remove handling of ADJUST_LEN_YES.  Clean-up code.

2011-09-26  Eric Botcazou  <ebotcazou@adacore.com>

        * ifcvt.c (noce_try_cmove_arith): Use may_trap_or_fault_p in lieu of
        may_trap_p to detect loads that may trap of fault.

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

        * config/avr/avr-protos.h (output_reload_inhi): Change prototype.
        * config/avr/avr.md (adjust_len): Add "reload_in16" alternative.
        (*reload_inhi): Use it.  Adapt call to output_reload_inhi to new
        prototype.
        (*movhi): Split constraint alternative "r,rL" into "r,r" and "r,L".
        * config/avr/avr.c: Rename output_reload_insisf_1 to
        output_reload_in_const.
        (avr_popcount_each_byte): Handle SFmode, too.
        (output_reload_in_const): Change so it can handle HI loads, too.
        Use avr_popcount_each_byte to work out if scratch register must be
        created on the fly.
        (output_reload_inhi): Rewrite using output_reload_in_const and...
        (output_movhi): ...use it to print constants' loads.
        (adjust_insn_length): New case ADJUST_LEN_RELOAD_IN16. Cleanup code.

2011-09-25  David S. Miller  <davem@davemloft.net>

        * config/sparc/constraints.md (C, P, Z): New constraints for
        const_doube, const_int, and const_vector "all ones" values.
        Make unused constraint letters comment match reality.
        * config/sparc/predicates.md (const_all_ones_operand,
        register_or_zero_or_all_ones_operand): New predicates.
        * config/sparc/sparc.c (sparc_expand_move): Allow all ones
        as well as zero constants when VIS.
        (sparc_legitimate_constant_p): Likewise.
        * config/sparc/sparc.md (movsi_insn): Add fones alternative.
        (movsf_insn): Likewise
        (movdi_insn_sp64): Add fone alternative.
        (movdf_insn_sp32_v9): Likewise.
        (movdf_insn_sp64): Likewise.

        * configure.ac: Add feature check to make sure the assembler
        supports the FMAF, HPC, and VIS 3.0 instructions found on
        Niagara-3 and later cpus.
        * configure: Rebuild.
        * config.in: Likewise.
        * config/sparc/sparc.opt: New option '-mfmaf'.
        * config/sparc/sparc.md: Add float fused multiply-add patterns.
        * config/sparc/sparc.h (AS_NIAGARA3_FLAG): New macro.
        (ASM_CPU64_DEFAULT_SPEC, ASM_CPU_SPEC): Use it, as needed.
        * config/sparc/sol2.h (ASM_CPU32_DEFAULT_SPEC,
        ASM_CPU64_DEFAULT_SPEC, ASM_CPU_SPEC): Likewise.
        * config/sparc/sparc.c (sparc_option_override): Turn MASK_FMAF on
        by default for Niagara-3 and later.  Turn it off if TARGET_FPU is
        disabled.
        (sparc_rtx_costs): Handle 'FMA'.
        * doc/invoke.texi: Document -mfmaf.

2011-09-25  Jakub Jelinek  <jakub@redhat.com>

        * tree-ssa-structalias.c (intra_create_variable_infos): Treat
        TYPE_RESTRICT REFERENCE_TYPE parameters like restricted
        DECL_BY_REFERENCE parameters.

2011-09-25  Eric Botcazou  <ebotcazou@adacore.com>

        * tree-eh.c (cleanup_empty_eh): Allow a call to __builtin_stack_restore
        if there is no outgoing edge.

        * tree-scalar-evolution.c (simple_iv): Accept all kinds of pointer and
        integral types.

2011-09-25  Ira Rosen  <ira.rosen@linaro.org>

        * tree-vect-slp.c (vect_slp_analyze_bb_1): Split out core part
        of vect_analyze_bb here.
        (vect_analyze_bb): Loop over vector sizes calling vect_analyze_bb_1.

2011-09-25  Ira Rosen  <ira.rosen@linaro.org>

        * tree-data-ref.c (dr_analyze_innermost): Add new argument.
        Allow not simple iv if analyzing basic block.
        (create_data_ref): Update call to dr_analyze_innermost.
        (stmt_with_adjacent_zero_store_dr_p, ref_base_address): Likewise.
        * tree-loop-distribution.c (generate_memset_zero): Likewise.
        * tree-predcom.c (find_looparound_phi): Likewise.
        * tree-data-ref.h (dr_analyze_innermost): Add new argument.

2011-09-24  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.h (FIRST_PSEUDO_REGISTER): Bump to 103.
        (SPARC_GSR_REG): Define.
        (FIXED_REGISTERS): Mark GSR as fixed.
        (CALL_USED_REGISTERS): Mark GSR as call used.
        (HARD_REGNO_NREGS): GSR is always 1 register.
        (REG_CLASS_CONTENTS): Add GSR to ALL_REGS.
        (REG_ALLOC_ORDER, REG_LEAF_ALLOC_ORDER): Add GSR to the end.
        (REGISTER_NAMES): Add "%gsr".
        * config/sparc/sparc.md (UNSPEC_ALIGNADDR, UNSPEC_ALIGNADDRL): Delete.
        (UNSPEC_WRGSR): New unspec.
        (GSR_REG): New constant.
        (type): Add new insn type 'gsr'.
        (fpack16_vis, fpackfix_vis, fpack32_vis,
        faligndata<V64I:MODE>_vis)): Add use of GSR_REG.
        (wrgsr_vis, *wrgsr_sp64, wrgsr_v8plus, rdgsr_vis, *rdgsr_sp64,
        rdgsr_v8plus): New expanders and insns.
        (alignaddr<P:mode>_vis, alignaddrl<P:mode>_vis): Reimplement
        using patterns which show that this is a plus in addition to a
        modification of GSR_REG, instead of an unspec.
        * config/sparc/ultra1_2.md: Handle 'gsr'.
        * config/sparc/ultra3.md: Likewise.
        * config/sparc/niagara.md: Likewise.
        * config/sparc/niagara2.md: Likewise.
        * config/sparc/sparc.c (leaf_reg_remap, sparc_leaf_regs): Fill out
        end of table.
        (sparc_option_override): Make -mvis imply -mv8plus.
        (hard_32bit_mode_classes, hard_64bit_mode_classes): Add entries
        for %gsr.
        (sparc_vis_init_builtins): Build __builtin_vis_write_gsr and
        __builtin_vis_read_gsr.
        (sparc_expand_buildin): Handle builtins that take one argument and
        return void.
        (sparc_fold_builtin): Never fold writes to %gsr.
        * config/sparc/visintrin.h (__vis_write_gsr, __vis_read_gsr): New.
        * doc/extend.texi: Document new VIS intrinsics.

2011-09-23  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-transform.c (inline_call): Add comment.
        * ipa-inline.h (inline_param_summary): New structure and vector.
        (struct inline_edge_summary): Add param field.
        * ipa-inline-analysis.c (CHANGED): New constant.
        (add_clause): Handle CHANGED and NOT_CONSTANT.
        (predicate_probability): New function.
        (dump_condition): Dump CHANGED predicate.
        (evaluate_conditions_for_known_args): Handle ERROR_MARK as marker
        of unknown function wide invariant.
        (evaluate_conditions_for_edge): Handle change probabilities.
        (inline_edge_duplication_hook): Copy param summaries.
        (inline_edge_removal_hook): Free param summaries.
        (dump_inline_edge_summary): Fix dumping of indirect edges and callee
        sizes; dump param summaries.
        (will_be_nonconstant_predicate): Use CHANGED predicate.
        (record_modified_bb_info): New structure.
        (record_modified): New function.
        (param_change_prob): New function.
        (estimate_function_body_sizes): Compute param summaries.
        (estimate_edge_size_and_time): Add probability argument.
        (estimate_node_size_and_time): Add inline_param_summary argument;
        handle predicate probabilities.
        (remap_predicate): Fix formating.
        (remap_edge_change_prob): New function.
        (remap_edge_summaries): Rename from ...; use remap_edge_change_prob.
        (remap_edge_predicates): ... this one.
        (inline_merge_summary): Remap edge summaries; handle predicate
        probabilities; remove param summaries after we are done.
        (do_estimate_edge_time): Update.
        (do_estimate_edge_growth): Update.
        (read_inline_edge_summary): Read param info.
        (inline_read_summary): Fix formating.
        (write_inline_edge_summary): Write param summaries.

2011-09-23  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_print_operand): Handle %~.
        (ix86_print_operand_punct_valid_p): Return true also for '~'.
        * config/i386/sse.md (i128): New mode_attr.
        (vec_extract_hi_<mode>, vec_extract_hi_<mode>,
        avx_vbroadcastf128_<mode>, *avx_vperm2f128<mode>_full,
        *avx_vperm2f128<mode>_nozero, vec_set_lo_<mode>,
        vec_set_hi_<mode>, *vec_concat<mode>_avx): Use <i128> in the
        patterns, use "<sseinsnmode>" for "mode" attribute.
        (vec_extract_hi_v16hi, vec_extract_hi_v32qi, vec_set_lo_v16hi,
        vec_set_hi_v16hi, vec_set_lo_v32qi, vec_set_hi_v32qi): Use
        %~128 in the patterns, use "OI" for "mode" attribute.

2011-09-23  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50447
        * config/avr/avr.md (adjust_len): Add alternatives "tsthi",
        "tstsi", "compare".
        (*cmpqi_sign_extend): Use s8_operand.
        (*cmphi, *cmpsi): Rewrite using avr_out_compare.
        * config/avr/avr-protos.h (compare_diff_p, compare_eq_p): Remove
        prototypes.
        (out_tsthi, out_tstsi): Remove prototypes.
        (avr_out_tsthi, avr_out_tstsi): New prototypes.
        * config/avr/avr.c (out_tsthi, out_tstsi): Remove functions.
        (avr_asm_len): Negative length now sets *plen to -length.
        (compare_sign_p): Return bool instead of int.
        (compare_diff_p, compare_eq_p): Ditto and make static.
        (avr_out_tsthi): New function.
        (avr_out_tstsi): New function.
        (avr_out_compare): New function.
        (adjust_insn_length): Handle ADJUST_LEN_TSTHI, ADJUST_LEN_TSTSI,
        ADJUST_LEN_COMPARE.

2011-09-23  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50447
        * config/avr/avr.md: (adjust_len): Add alternative "out_plus".
        (addsi3): Rewrite using QI scratch register.  Adjust text
        peepholes using plus:SI.
        (*addsi3_zero_extend.hi): New insn.
        (*subsi3_zero_extend.hi): New insn.
        (*subhi3_zero_extend1): Set attribute "cc" to "set_czn".
        (*subsi3_zero_extend): Ditto.
        (subsi3): Change predicate #2 to register_operand.
        * config/avr/avr-protos.h (avr_out_plus): New prototype.
        (avr_out_plus_1): New static function.
        (avr_out_plus): New function.
        (adjust_insn_length): Handle ADJUST_LEN_OUT_PLUS.

2011-09-23  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_prepare_sse_fp_compare_args): For
        GE/GT/UNLE/UNLT swap arguments and condition even for TARGET_AVX.

2011-09-23  Ian Lance Taylor  <iant@google.com>

        * godump.c (go_define): Treat a single character in single quotes,
        or a string, as an operand.

2011-09-23  Martin Jambor  <mjambor@suse.cz>

        * ipa-prop.h (jump_func_type): Updated comments.
        (ipa_known_type_data): New type.
        (ipa_jump_func): Use it to describe known type jump functions.
        * ipa-prop.c (ipa_print_node_jump_functions_for_edge): Updated to
        reflect the new known type jump function contents.
        (compute_known_type_jump_func): Likewise.
        (combine_known_type_and_ancestor_jfs): Likewise.
        (try_make_edge_direct_virtual_call): Likewise.
        (ipa_write_jump_function): Likewise.
        (ipa_read_jump_function): Likewise.
        * ipa-cp.c (ipa_value_from_known_type_jfunc): New function.
        (ipa_value_from_jfunc): Use ipa_value_from_known_type_jfunc.
        (propagate_accross_jump_function): Likewise.

2011-09-23  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50446
        * config/avr/avr.md (rotlqi3): Support all offsets 0..7.
        (rotlqi3_4): Turn insn into expander.
        (*rotlqi3): New insn.
        (rotlhi3, rotlsi3): Support rotate left/right by 1.
        (*rotlhi2.1, *rotlhi2.15): New insns.
        (*rotlsi2.1, *rotlsi2.31): New insns.
        * config/avr/constraints.md (C03, C05, C06, C07): New constraints.

2011-09-23  Bin Cheng  <bin.cheng@arm.com>

        * config/arm/bpabi.h (BE8_LINK_SPEC): Add cortex-m arch and processors.

2011-09-22  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * ipa-prop.c (ipa_print_node_jump_functions): Fix typos.

2011-09-22  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * reload.c (find_reloads): Set operand_mode to Pmode for address
        operands consisting of just a CONST_INT.

2011-09-22  Uros Bizjak  <ubizjak@gmail.com>

        PR target/50482
        * config/i386/i386.c (ix86_expand_sse_movcc): When generating
        blendv, force op_true to register if it doesn't satisfy
        nonimmediate_operand predicate.

2011-09-22  Richard Sandiford  <rdsandiford@googlemail.com>

        PR middle-end/50113
        PR middle-end/50061
        * calls.c (emit_library_call_value_1): Use BLOCK_REG_PADDING to
        get the locate.where_pad value for register-only arguments.
        * config/arm/arm.c (arm_pad_arg_upward): Remove HFmode handling.
        (arm_pad_reg_upward): Handle null types.

2011-09-22  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-analysis.c: Fix overly long lines.

2011-09-22  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-transform.c (inline_call): Always update jump functions
        after inlining.
        * ipa-inline.c (ipa_inline): Likewise; do not call
        ipa_create_all_structures_for_iinln.
        (ipa_inline): Always free jump functions.
        * ipa-inline-analysis.c (evaluate_conditions_for_edge): Remove hack.
        (remap_edge_predicates): Fix pasto.
        (inline_merge_summary): Remove nlined edge predicate; remove hack.
        (inline_analyze_function): Always initialize jump functions.
        (inline_generate_summary): Likewise.
        (inline_write_summary): Always write jump functions when ipa-cp
        is not doing that.
        (inline_read_summary): Always read jump functions when ipa-cp
        is not doing that.
        * ipa-prop.c (iinlining_processed_edges): Remove.
        (update_indirect_edges_after_inlining): Do not use
        iinlining_processed_edges; instead set param_index to -1.
        (propagate_info_to_inlined_callees): Only try to indirect inlining
        when asked to do so; update jump functions of indirect calls, too;
        remove jump functions of the inlined edge.
        (ipa_edge_duplication_hook): Do not copy iinlining_processed_edges.
        (ipa_create_all_structures_for_iinln): Remove.
        (ipa_free_all_structures_after_iinln): Do not free
        iinlining_processed_edges.
        * ipa-prop.h (ipa_create_all_structures_for_iinln): Remove.

2011-09-22  Richard Sandiford  <richard.sandiford@linaro.org>

        * config/arm/predicates.md (expandable_comparison_operator): New
        predicate, extracted from...
        (arm_comparison_operator): ...here.
        * config/arm/arm.md (cbranchsi4, cbranchsf4, cbranchdf4, cbranchdi4)
        (cstoresi4, cstoresf4, cstoredf4, cstoredi4, movsicc, movsfcc)
        (movdfcc): Use expandable_comparison_operator.

2011-09-22  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50447
        PR target/50465
        * config/avr/avr-protos.h (avr_out_bitop): New prototype.
        (avr_popcount_each_byte): New prototype.
        * config/avr/avr.c (avr_popcount): New static function.
        (avr_popcount_each_byte): New function.
        (avr_out_bitop): New function.
        (adjust_insn_length): ADJUST_LEN_OUT_BITOP dispatches to
        avr_out_bitop.  Cleanup code.
        * config/avr/constraints.md (Ca2, Co2, Cx2): New constraints.
        (Ca4, Co4, Cx4): New constraints.
        * config/avr/avr.md (adjust_len): Add "out_bitop" insn attribute
        alternative.
        (andhi3, iorhi3, xorhi3): Rewrite insns using avr_out_bitop.
        (andsi3, iorsi3, xorsi3): Ditto.
        (*iorhi3_clobber, *iorsi3_clobber): Remove insns.

2011-09-22  Ira Rosen  <ira.rosen@linaro.org>

        PR tree-optimization/50451
        * tree-vect-slp.c (vect_get_constant_vectors): Don't fail for
        constant operands in reduction.
        (vect_get_slp_defs): Don't create vector operand for NULL scalar
        operand.

2011-09-22  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.c (sparc_vis_init_builtins): Do not mark
        fpack16, fpack32, fpackfix as const.

        * config/sparc/sparc.md (G[0-7]_REG, O[0-7]_REG, L[0-7]_REG,
        I[0-7]_REG, F[0-62]_REG, FCC[0-3]_REG, CC_REG, SFP_REG): New
        constants.  Use them everywhere.

2011-09-22  Oleg Endo  <oleg.endo@t-online.de>

        * config/sh/sh.c (andcosts): Renamed to and_xor_ior_costs.
        Added AND special case.  Adapted comments.
        (sh_rtx_costs): Added XOR and IOR case.

2011-09-21  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-analsis.c (compute_inline_parameters): Set
        cfun and current_function_decl.

2011-09-21  Jan Hubicka  <jh@suse.cz>

        * ipa-inline-analysis.c (set_cond_stmt_execution_predicate): Allow
        handled components in parameter of builtin_constant_p.
        (will_be_nonconstant_predicate): Allow loads of non-SSA parameters.

2011-09-21  Jan Hubicka  <jh@suse.cz>

        * ipa-inline.c (relative_time_benefit): Fix wrong bracketting.
        * ipa-inline.h (estimate_edge_time): Fix pasto.
        * ipa-inline-analysis.c (do_estiamte_edge_time): Remove capping.

2011-09-21  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/i386.c (ix86_expand_sse_movcc): Use
        blendvps, blendvpd and pblendvb if possible.

2011-09-21  Uros Bizjak  <ubizjak@gmail.com>

        PR target/50464
        * config/i386/sse.md (xop_pcmov_<mode><avxsizesuffix>): Change
        operand 1 predicate to register_operand and operand 2 predicate
        to nonimmediate_operand.
        * config/i386/i386.c (ix86_expand_sse_movcc): When generating
        xop_pcmov, force op_true to register.  Also, force op_false to
        register if it doesn't satisfy nonimmediate_operand predicate.

2011-09-21  Kirill Yukhin  <kirill.yukhin@intel.com>

        * config/i386/bmi2intrin.h (_mulx_u64): New.
        (_mulx_u32): Ditto.

2011-09-21  Jan Hubicka  <jh@suse.cz>

        PR tree-optimization/50433
        * ipa-inline-analysis.c (eliminated_by_inlining_prob):
        Use get_base_address.

2011-09-21  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (<code><mode>3 smaxmin:VI124_128 expander): Use
        nonimmediate_operand instead of register_operand predicate for operands
        1 and 2, force them into registers if expanding them as comparison.
        (<code><mode>3 umaxmin:VI124_128 expander): Similarly.  For UMAX
        V8HImode force into register just operand 1.

2011-09-21  Georg-Johann Lay  <avr@gjlay.de>

        PR target/45099
        * config/avr/avr.c (avr_function_arg_advance): Change error to
        warning if a fixed register is needed as function argument.

2011-09-21  Georg-Johann Lay  <avr@gjlay.de>

        PR target/50449
        PR target/50465
        * config/avr/avr.md (adjust_len): New insn attribute.
        (*reload_insi, *reload_insf): Use it.
        (*movsi, *movsf): Use new interface of output_movsisf.
        * config/avr/avr-protos.h (output_movsisf): Change prototype.
        * config/avr/avr.c (output_movsisf): Ditto.
        (adjust_insn_length): Use insn attribute "adjust_len" to adjust
        lengths of insns *reload_insi, *reload_insf.
        (output_reload_insisf_1): New static function.
        (output_reload_insisf): Use it.

2011-09-21  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.c (def_builtin): Change from macro into function.
        (def_builtin_const): New.
        (sparc_vis_init_builtins): Use def_builtin_const for all VIS builtins
        other than alignaddr and falignaddr.

        * config/sparc/sparc.md (UNSPEC_FCMPLE, UNSPEC_FCMPNE, UNSPEC_FCMPGT,
        UNSPEC_FCMPEQ): New unspec codes.
        (fcmple16_vis, fcmple32_vis, fcmpne16_vis, fcmpne32_vis, fcmpgt16_vis,
        fcmpgt32_vis, fcmpeq16_vis, fcmpeq32_vis): New patterns.
        * config/sparc/sparc.c (sparc_vis_init_builtins): Create builtins for
        new pixel compare VIS patterns.
        * config/sparc/visintrin.h (__vis_fcmple16, __vis_fcmple32,
        __vis_fcmpne16, __vis_fcmpne32, __vis_fcmpgt16, __vis_fcmpgt32,
        __vis_fcmpeq16, __vis_fcmpeq32): New.
        * doc/extend.texi: Document new pixel compare VIS intrinsics.

2011-09-21  Tom de Vries  <tom@codesourcery.com>

        * final.c (final): Handle if JUMP_LABEL is not LABEL_P.

2011-09-20  David S. Miller  <davem@davemloft.net>

        * config/sparc/sparc.md (UNSPEC_ALIGNADDRL): New unspec.
        (aligneddrl<P:mode>_vis): New pattern.
        (edge8_vis, edge8l_vis, edge16_vis, edge16l_vis, edge32_vis,
        edge32l_vis): Adjust to take Pmode arguments, and return SImode.
        * config/sparc/sparc.c (sparc_vis_init_builtins): Handle new
        alignaddrl insn, and adjust edge operations for updated types.
        * config/sparc/visintrin.h: Likewise.
        * doc/extend.texi: Make typing in VIS documentation match reality.

2011-09-20  Terry Guo  <terry.guo@arm.com>

        * config/arm/arm-arches.def: Add armv6s-m.
        * config/arm/arm-tables.opt: Regenerate.

2011-09-20  Wei Guozhi  <carrot@google.com>

        PR rtl-optimization/49452
        * postreload.c (reload_combine): Invalidate use information when across
        volatile insn.

2011-09-19  Maxim Kuvyrkov  <maxim@codesourcery.com>

        * haifa-sched.c (has_edge_p, prev_non_location_insn, check_cfg):
        Remove maintenance overhead.
        (haifa_sched_init, sched_finish): Update.

2011-09-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/mmx.md (*mov<mode>_internal_rex64): Use if_then_else RTX
        to calculate unit, prefix_rep and prefix_data16 attributes.
        (*mov<mode>_internal): Ditto for unit attribute.
        (*movv2sf_internal_rex64): Ditto for unit and prefix_rep attributes.
        (*movv2sf_internal): Ditto.
        * config/i386/sse.md (VI1248_256): Remove mode iterator.
        (avx2_eq<mode>3): Use VI_256 instead of VI1248_256.
        (*avx2_eq<mode>3): Ditto.
        (avx2_gt<mode>3): Ditto.

2011-09-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/i386/i386.md (maxmin): New code iterator.
        * config/i386/sse.md (<maxmin:code><mode>3): Macroize expander
        from <umaxmin:code><mode>3 and <smaxmin:code><mode>3 using maxmin
        code iterator.
        (*avx2_<maxmin:code><mode>3): Macroize isn from
        *avx2_<umaxmin:code><mode>3 and *avx2_<smaxmin:code><mode>3 using
        maxmin code iterator.
        (<smaxmin:code><VI124_128:mode>3): Merge with <smaxmin:code>v8hi3.
        (<umaxmin:code><VI124_128:mode>3): Merge with umaxv4si3 and
        <umaxmin:code>v16qi3.

2011-09-19  Alan Modra  <amodra@gmail.com>
            Michael Meissner  <meissner@linux.vnet.ibm.com>

        PR target/50341
        * config/rs6000/rs6000.md (call_indirect_aix<ptrsize>): Do not
        split the load of the indirect function's TOC from the call to
        prevent the compiler from moving the load of the new TOC above
        code that references the current function's TOC.
        (call_indirect_aix<ptrsize>_internal): Ditto.
        (call_indirect_aix<ptrsize>_nor11): Ditto.
        (call_indirect_aix<ptrsize>_internal2): Ditto.
        (call_value_indirect_aix<ptrsize>): Ditto.
        (call_value_indirect_aix<ptrsize>_internal): Ditto.
        (call_value_indirect_aix<ptrsize>_nor11): Ditto.
        (call_value_indirect_aix<ptrsize>_internal2): Ditto.

2011-09-19  Jakub Jelinek  <jakub@redhat.com>

        * config/i386/sse.md (*sse4_1_extractps): Change into
        define_insn_and_split, add =x 0 n and =x x n alternatives
        and split them after reload.