Fixes Go issue 3921 for gccgo.

From Shenghou Ma.

From-SVN: r190282

	* config/s390/s390.c (s390_expand_insv): Use VOIDmode in gen_rtx_SET.

From-SVN: r190281

	* config/s390/s390.c (s390_expand_cs_hqi): Copy val to a temp before
	performing the compare for the restart loop.

From-SVN: r190280

* config/rl78/rl78.c (rl78_alloc_physical_registers): Check for
SET before extracting SET_SRC.
(rl78_remove_unused_sets): Check for REG before extractnig REGNO.

From-SVN: r190278

From-SVN: r190277

	PR target/54089
	* config/sh/sh-protos (shift_insns_rtx): Delete.
	(sh_ashlsi_clobbers_t_reg_p): Add.
	* config/sh/sh.c (shift_insns, shift_amounts, ext_shift_insns,
	ext_shift_amounts): Merge arrays of ints to array of structs.
	Adapt usage of arrays throughout the file.
	(shift_insns_rtx): Delete unused function.
	(sh_ashlsi_clobbers_t_reg_p): New function.
	* config/sh/sh.md (ashlsi3): Emit ashlsi3_n_clobbers_t insn if the
	final shift sequence will clobber T_REG.
	(ashlsi3_n): Split only if the final shift sequence will not
	clobber T_REG.
	(ashlsi3_n_clobbers_t): New insn_and_split.

From-SVN: r190273

	* acinclude.m4: Update references to final C++11 standard.
	* include/bits/shared_ptr.h: Likewise.
	* include/bits/shared_ptr_base.h: Likewise.
	* include/bits/unique_ptr.h: Likewise.
	* include/std/chrono: Likewise.
	* include/std/thread: Likewise.

From-SVN: r190271

calls.c (mem_overlaps_already_clobbered_arg_p): Use SBITMAP_SIZE instead of looking at sbitmap n_bits member directly.

	* calls.c (mem_overlaps_already_clobbered_arg_p): Use SBITMAP_SIZE
	instead of looking at sbitmap n_bits member directly.
	* gcse.c (hoist_code): Likewise.
	* sched-rgn.c (split_edges): Likewise.
	* tree-into-ssa.c (is_old_name, is_new_name, add_new_name_mapping,
	update_ssa): Likewise.

From-SVN: r190268

i386.h (LIMIT_RELOAD_CLASS): Return preferred single unit register class for classes that contain registers...

	* config/i386/i386.h (LIMIT_RELOAD_CLASS): Return preferred
	single unit register class for classes that contain registers form
	multiple units.
	(REG_CLASS_CONTENTS): Add missing "frame" register to FLOAT_INT_REGS,
	INT_SSE_REGS and FLOAT_INT_SSE_REGS register classes.

testsuite/ChangeLog:

	* gcc.c-torture/compile/20120727-1.c (dg-options): Add -mfpmath=387
	for x86 targets.
	* gcc.c-torture/compile/20120727-2.c: New test.

From-SVN: r190261

2012-08-09  Martin Jambor  <mjambor@suse.cz>

	* cgraph.h (cgraph_indirect_call_info): Field anc_offse renamd to
	offset, updated all users.  New field agg_contents.
	* ipa-prop.h (jump_func_type): Removed IPA_JF_CONST_MEMBER_PTR.
	(ipa_pass_through_data): New field agg_preserved.
	(ipa_ancestor_jf_data): Likewise.
	(ipa_member_ptr_cst): Removed.
	(ipa_agg_jf_item): New type.
	(ipa_agg_jump_function): Likewise.
	(ipa_jump_func): New field agg.  Removed field member_cst.
	(ipa_get_jf_pass_through_agg_preserved): New function.
	(ipa_get_jf_ancestor_agg_preserved): Likewise.
	(ipa_get_jf_member_ptr_pfn): Removed.
	(ipa_find_agg_cst_for_param): Declare.
	(ipa_load_from_parm_agg): Likewise.
	* ipa-prop.c (param_analysis_info): Fields modified and
	visited_statements rename to parm_modified and parm_visited_statements
	respectively, added fields ref_modified, ref_visited_statements,
	pt_modified and pt_visited_statements.
	(ipa_print_node_jump_functions_for_edge): Do not dump const member
	functions.  Dump agg_preserved flags and aggregate jump functions.
	(ipa_set_jf_simple_pass_through): Set also agg_preserved.
	(ipa_set_ancestor_jf): Likewise.
	(ipa_set_jf_arith_pass_through): Clear agg_preserved.
	(ipa_set_jf_member_ptr_cst): Removed.
	(is_parm_modified_before_stmt): Logic reversed, renamed to
	parm_preserved_before_stmt_p.  Cache visited bitmap only for
	naked DECL parameters.  All callers updated.
	(load_from_unmodified_param): Allow NULL parms_ainfo.
	(parm_ref_data_preserved_p): New function.
	(parm_ref_data_pass_through_p): Likewise.
	(ipa_load_from_parm_agg_1): Likewise.
	(ipa_load_from_parm_agg): Likewise.
	(compute_complex_assign_jump_func): Check if aggregate contents are
	preserved.
	(compute_complex_ancestor_jump_func): Likewise.
	(compute_scalar_jump_functions): Removed.
	(type_like_member_ptr_p): Also check field position are known and
	sane.
	(compute_pass_through_member_ptrs): Removed.
	(determine_cst_member_ptr): Likewise.
	(ipa_known_agg_contents_list): New type.
	(determine_known_aggregate_parts): New function.
	(compute_cst_member_ptr_arguments): Removed.
	(ipa_compute_jump_functions_for_edge): Compute all kinds of jump
	functions (scalar, aggregate and member pointer).
	(ipa_get_member_ptr_load_param): Incorporate into
	ipa_get_stmt_member_ptr_load_param, also pass back an offset.
	(ipa_note_param_call): Clear agg_contents.
	(ipa_analyze_indirect_call_uses): Also look for simple pointers loaded
	from aggregates.  In such cases, store offset of the called field.
	(ipa_analyze_node): Initialize new fields of param_analysis_info.
	(update_jump_functions_after_inlining): Handle aggregate contents.
	(ipa_find_agg_cst_for_param): New function.
	(try_make_edge_direct_simple_call): Handle called aggregate values.
	(update_indirect_edges_after_inlining): Make sure aggregate preserving
	jump functions comply with type compatibility requirements.
	(ipa_edge_duplication_hook): Copy also aggregate jump functions.
	(ipa_write_jump_function): Stream agg_preserved flags and aggregate
	jump functions.  Do not stream member pointer constant jump functions.
	(ipa_read_jump_function): Likewise.
	(ipa_write_indirect_edge_info): Stream new cgraph_indirect_call_info
	fields.
	(ipa_read_indirect_edge_info): Likewise.

	* testsuite/gcc.dg/ipa/iinline-4.c: New test.
	* testsuite/gcc.dg/ipa/iinline-5.c: Likewise.
	* testsuite/gcc.dg/ipa/iinline-6.c: Likewise.
	* testsuite/gcc.dg/ipa/iinline-7.c: Likewise.
	* testsuite/gcc.dg/lto/20120723_0.c: Likewise.
	* testsuite/gcc.dg/lto/20120723_1.c: Likewise.

From-SVN: r190260

	PR target/39423
	* config/sh/predicates.md (mem_index_disp_operand): New predicate.
	* config/sh/sh.md (*movsi_index_disp): Rewrite insns to use the new
	mem_index_disp_operand predicate.

	PR target/39423
	* gcc.target/sh/pr39423-1.c: New.

From-SVN: r190259

	PR target/51244
	* config/sh/sh.md: Add negc extu sequence peephole.
	(movrt, movnegt, movrt_negc, nott): Use t_reg_operand predicate.
	(*movrt_negc): New insn.
	* config/sh/sync.md (atomic_test_and_set): Pass gen_t_reg_rtx to
	gen_movnegt.
	* config/sh/sh.c (expand_cbranchsi4, sh_emit_scc_to_t,
	sh_emit_compare_and_branch, sh_emit_compare_and_set): Use get_t_reg_rtx.
	(sh_expand_t_scc): Pass gen_t_reg_rtx to gen_movnegt.

	PR target/51244
	* gcc.target/sh/pr51244-5: New.
	* gcc.target/sh/pr51244-6: New.

From-SVN: r190258

	PR target/50751
	* config/sh/sh.md (*extendqisi2_compact_reg, *extendhisi2_compact_reg):
	Use arith_reg_operand predicate instead of register_operand.
	* config/sh/predicates.md (movsrc_no_disp_mem_operand): Accept
	only mem, simplify.

From-SVN: r190257

        * config/alpha/alpha.c (alpha_pad_noreturn): Rename to ...
        (alpha_pad_function_end): ... this.  Also insert NOP between
        sibling call and GP load.
        (alpha_reorg): Update call to alpha_pad_function_end.  Expand comment.

From-SVN: r190255

Changelog
        * config/i386/adxintrin.h: Remove guarding __ADX__ check.
        * config/i386/x86intrin.h: Likewise.
        * config/i386/i386.c (ix86_init_mmx_sse_builtins): Remove
        OPTION_MASK_ISA_ADX from needed options for
        __builtin_ia32_addcarryx_u32 and __builtin_ia32_addcarryx_u64.
        (ix86_expand_builtin): Use add<mode>3_carry in expanding of
        IX86_BUILTIN_ADDCARRYX32 and IX86_BUILTIN_ADDCARRYX64.

testsuite/Changelog
        * gcc.target/i386/adx-addxcarry32-3.c: New.
        * gcc.target/i386/adx-addxcarry64-3.c: New.

From-SVN: r190254

    PR rtl-optimization/53701
    * sel-sched.c (vinsn_vec_has_expr_p): Clarify function comment.
    Process not only expr's vinsns but all old vinsns from expr's
    history of changes.
    (update_and_record_unavailable_insns): Clarify comment.

    * gcc.dg/pr53701.c: New test.

From-SVN: r190253

	* reload.c (find_valid_class_1): New static function.
	(push_reload): Use it when reloading a SYMBOL_REG as the inner
	of a subreg.  Keep better track of needed classes for the
	secondary memory case.
	* config/i386/i386.h (LIMIT_RELOAD_CLASS): Limit INT_SSE_REGS to
	GENERAL_REGS.
	* reload1.c (replaced_subreg): New static function.
	(gen_reload): Use it when deciding whether to use secondary
	memory.

	* gcc.c-torture/compile/20120727-1.c: New test.

From-SVN: r190252

re PR fortran/54199 (Superfluous diagnostic "is also the name of an intrinsic" for internal procedures)

2012-08-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/54199
        * intrinsic.c (gfc_warn_intrinsic_shadow): Better warning
        for internal procedures.

2012-08-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/54199
        * gfortran.dg/intrinsic_shadow_4.f90: New.

From-SVN: r190251

2012-08-09  Richard Guenther  <rguenther@suse.de>

	* tree.h (SSA_VAR_P): Simplify.
	* tree-ssanames.c (make_ssa_name_fn): Strengthen assert.
	* fold-const.c (fold_comparison): Check for default def first
	before checking for PARM_DECL.
	* tree-complex.c (get_component_ssa_name): Likewise.
	* tree-inline.c (remap_ssa_name): Likewise.
	* tree-ssa-loop-ivopts.c (parm_decl_cost): Likewise.
	* tree-ssa-structalias.c (get_fi_for_callee): Likewise.
	(find_what_p_points_to): Likewise.
	* tree-ssa-operands.c (add_stmt_operand): Simplify.

From-SVN: r190250

This is a fix to prepare the xmlj_io.c file of gnu classpath to a coming
API change in libxml2.

Basically, we were previously accessing fields inside the
xmlOutputBuffer struct of libxml2.  In a coming version of libxml2,
that won't be possible anymore.  Client code will have to use accessor
functions instead.  For the gory details, there is an interestin note
of Daniel Veillard (author of libxml2) at
https://mail.gnome.org/archives/desktop-devel-list/2012-August/msg00007.html.

This patch defines too accessor macros that, depending on the version
of libxml2 we are using will either access the fields of
xmlOutputBuffer directly, or use the new accessor function.

Tested on x86_64-unknown-linux-gnu against trunk.

libjava/classpath/

	* native/jni/xmlj/xmlj_io.c (GET_XML_OUTPUT_BUFFER_CONTENT)
	(GET_XML_OUTPUT_BUFFER_SIZE): New macros.
	(xmljOutputWriteCallback): Use them.

From-SVN: r190249

From-SVN: r190246

	* gcc.dg/tree-ssa/slsr-30.c: Require non-ilp32.  Remove
	dg-skip-if.

From-SVN: r190242

simplify-rtx.c (simplify_binary_operation_1): Do not simplify IOR to a constant if one operand has side effects.

	* simplify-rtx.c (simplify_binary_operation_1): Do not simplify
	IOR to a constant if one operand has side effects.

testsuite:
	* gcc.c-torture/execute/20120808-1.c: New test.

From-SVN: r190237

builtins.c (expand_builtin_atomic_compare_exchange): Pass old value operand as MEM to expand_atomic_compare_and_swap.

	* builtins.c (expand_builtin_atomic_compare_exchange): Pass old
	value operand as MEM to expand_atomic_compare_and_swap.

	* config/s390/s390.md ("atomic_compare_and_swap<mode>"): Accept
	nonimmediate_operand for old value; generate load and store if
	needed.
	* config/s390/s390.c (s390_expand_cs_hqi): Accept any operand
	as vtarget.

From-SVN: r190236

	PR middle-end/54146
	* gimpify.c (gimplify_body): Only verify_gimple_in_seq with
	checking enabled.
	* tree-ssa-loop-manip.c (add_exit_phis_var): Assert that var is
	a gimple_reg if checking is enabled.
	(find_uses_to_rename_stmt): Only look at non-virtual USE operands.
	* tree-into-ssa (compute_global_livein): Change the worklist
	type from an array to a VEC.

From-SVN: r190235

2012-08-08  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-operands.h (virtual_operand_p): Declare.
	* tree-ssa-operands.c (virtual_operand_p): New predicate.
	* gimple.c (is_gimple_reg): Use virtual_operand_p.
	* tree-into-ssa.c (prepare_block_for_update): Likewise.
	* tree-vect-loop-manip.c (adjust_debug_stmts): Likewise.

From-SVN: r190231

	* src/s390/ffi.c (ffi_prep_closure_loc): Don't ASSERT ABI test,
	just return FFI_BAD_ABI when things are wrong.

From-SVN: r190230

2012-08-08  Richard Guenther  <rguenther@suse.de>

	* tree-call-cdce.c (check_pow): Simplify.
	(gen_conditions_for_pow_int_base): Likewise.
	* tree-ssa-dom.c (propagate_rhs_into_lhs): Do not handle
	virtual operands here.
	* tree-ssa-operands.c (get_name_decl): Remove unused function.
	* gimplify.c (gimple_regimplify_operands): Remove dead code.
	* tree-vrp.c (get_value_range): Move SSA_NAME_VAR access.
	* tree-parloops.c (create_phi_for_local_result): Use copy_ssa_name.
	* value-prof.c (gimple_ic): Use duplicate_ssa_name.
	(gimple_stringop_fixed_value): Likewise.
	* tree.c (needs_to_live_in_memory): Remove SSA name handling.
	* tree-stdarg.c (find_va_list_reference): Store SSA_NAME_VERSIONs
	in the bitmap alongside shifted DECL_UIDs.
	(va_list_counter_struct_op): Likewise.
	(va_list_ptr_read): Likewise.
	(va_list_ptr_write): Likewise.
	(check_va_list_escapes): Likewise.
	(check_all_va_list_escapes): Likewise.
	(execute_optimize_stdarg): Likewise.
	* tree-outof-ssa.c (insert_backedge_copies): Use copy_ssa_name.

From-SVN: r190229

gcc/

	PR rtl-optimization/54157
	* combine.c (gen_lowpart_for_combine): Don't return identity
	for CONST or symbolic reference.

gcc/testsuite/

	PR rtl-optimization/54157
	* gcc.target/i386/pr54157.c: New file.

From-SVN: r190228

ChangeLog:
2012-08-08 Michael Zolotukhin <michael.v.zolotukhin@intel.com>

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_ADX_SET): New.
        (OPTION_MASK_ISA_ADX_UNSET): Likewise.
        (ix86_handle_option): Handle madx option.
        * config.gcc (i[34567]86-*-*): Add adxintrin.h.
        (x86_64-*-*): Likewise.
        * config/i386/adxintrin.h: New header.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect ADCX/ADOX
        support.
        * config/i386/i386-builtin-types.def
        (UCHAR_FTYPE_UCHAR_UINT_UINT_PUNSIGNED): New function type.
        (UCHAR_FTYPE_UCHAR_ULONGLONG_ULONGLONG_PULONGLONG): Likewise.
        * config/i386/i386-c.c: Define __ADX__ if needed.
        * config/i386/i386.c (ix86_target_string): Define -madx option.
        (PTA_ADX): New.
        (ix86_option_override_internal): Handle new option.
        (ix86_valid_target_attribute_inner_p): Add OPT_madx.
        (ix86_builtins): Add IX86_BUILTIN_ADDCARRYX32,
        IX86_BUILTIN_ADDCARRYX64.
        (ix86_init_mmx_sse_builtins): Define corresponding built-ins.
        (ix86_expand_builtin): Handle these built-ins.
        (ix86_expand_args_builtin): Handle new function types.
        * config/i386/i386.h (TARGET_ADX): New.
        * config/i386/i386.md (adcx<mode>3): New define_insn.
        * config/i386/i386.opt (madx): New.
        * config/i386/x86intrin.h: Include adxintrin.h.

testsuite/ChangeLog:
        * gcc.target/i386/adx-addcarryx32-1.c: New.
        * gcc.target/i386/adx-addcarryx32-2.c: New.
        * gcc.target/i386/adx-addcarryx64-1.c: New.
        * gcc.target/i386/adx-addcarryx64-2.c: New.
        * gcc.target/i386/adx-check.h: New.
        * gcc.target/i386/i386.exp (check_effective_target_adx): New.
        * gcc.target/i386/sse-12.c: Add -madx.
        * gcc.target/i386/sse-13.c: Ditto.
        * gcc.target/i386/sse-14.c: Ditto.
        * gcc.target/i386/sse-22.c: Ditto.
        * gcc.target/i386/sse-23.c: Ditto.
        * g++.dg/other/i386-2.C: Ditto.
        * g++.dg/other/i386-3.C: Ditto.

From-SVN: r190227

From-SVN: r190225

From-SVN: r190224

	PR middle-end/54146
	* ira.c (init_live_subregs): Take live_subregs_used as a bitmap.
	(build_insn_chain): Make live_subregs_used a bitmap.
	Use SBITMAP_SIZE to ignore the paradoxical bytes of subregs.
	Use sbitmap_free to free the live_subreg sbitmaps.

From-SVN: r190223

	PR middle-end/54146
	* ifcvt.c: Include pointer-set.h.
	(cond_move_process_if_block): Change type of then_regs and
	else_regs from alloca'd array to pointer_sets.
	(check_cond_move_block): Update for this change.
	(cond_move_convert_if_block): Likewise.
	* Makefile.in: Fix dependencies for ifcvt.o.

From-SVN: r190222

gcc:

2012-08-07  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gimple-ssa-strength-reduction.c (struct incr_info_d): New struct.
	(incr_vec): New static var.
	(incr_vec_len): Likewise.
	(address_arithmetic_p): Likewise.
	(stmt_cost): Remove dead assignment.
	(dump_incr_vec): New function.
	(cand_abs_increment): Likewise.
	(lazy_create_slsr_reg): Likewise.
	(incr_vec_index): Likewise.
	(count_candidates): Likewise.
	(record_increment): Likewise.
	(record_increments): Likewise.
	(unreplaced_cand_in_tree): Likewise.
	(optimize_cands_for_speed_p): Likewise.
	(lowest_cost_path): Likewise.
	(total_savings): Likewise.
	(analyze_increments): Likewise.
	(ncd_for_two_cands): Likewise.
	(nearest_common_dominator_for_cands): Likewise.
	(profitable_increment_p): Likewise.
	(insert_initializers): Likewise.
	(introduce_cast_before_cand): Likewise.
	(replace_rhs_if_not_dup): Likewise.
	(replace_one_candidate): Likewise.
	(replace_profitable_candidates): Likewise.
	(analyze_candidates_and_replace): Handle candidates with SSA-name
	strides.

gcc/testsuite:

2012-08-07  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.dg/tree-ssa/slsr-5.c: New.
	* gcc.dg/tree-ssa/slsr-6.c: New.
	* gcc.dg/tree-ssa/slsr-7.c: New.
	* gcc.dg/tree-ssa/slsr-8.c: New.
	* gcc.dg/tree-ssa/slsr-9.c: New.
	* gcc.dg/tree-ssa/slsr-10.c: New.
	* gcc.dg/tree-ssa/slsr-11.c: New.
	* gcc.dg/tree-ssa/slsr-12.c: New.
	* gcc.dg/tree-ssa/slsr-13.c: New.
	* gcc.dg/tree-ssa/slsr-14.c: New.
	* gcc.dg/tree-ssa/slsr-15.c: New.
	* gcc.dg/tree-ssa/slsr-16.c: New.
	* gcc.dg/tree-ssa/slsr-17.c: New.
	* gcc.dg/tree-ssa/slsr-18.c: New.
	* gcc.dg/tree-ssa/slsr-19.c: New.
	* gcc.dg/tree-ssa/slsr-20.c: New.
	* gcc.dg/tree-ssa/slsr-21.c: New.
	* gcc.dg/tree-ssa/slsr-22.c: New.
	* gcc.dg/tree-ssa/slsr-23.c: New.
	* gcc.dg/tree-ssa/slsr-24.c: New.
	* gcc.dg/tree-ssa/slsr-25.c: New.
	* gcc.dg/tree-ssa/slsr-26.c: New.
	* gcc.dg/tree-ssa/slsr-30.c: New.
	* gcc.dg/tree-ssa/slsr-31.c: New.

From-SVN: r190220

From-SVN: r190219

re PR libstdc++/54005 (Use __atomic_always_lock_free in libstdc++ is_lock_free instead of __atomic_is_lock_free)

2012-08-07  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/54005
	* include/std/atomic: Use __atomic_always_lock_free.
	* include/bits/atomic_base.h: Same.

From-SVN: r190216

gcc/
	* cfg.c (debug_bb): Do not set TDF_BLOCKS.
	* cfghooks.c (dump_bb): Honor ~TDF_BLOCKS.
	* pretty-print.c (pp_base_flush): Do not add a newline, and do not
	clear pp_needs_newline.
	* pretty-print.h (pp_newline_and_flush): New macro with the behavior
	of pp_base_flush before the above change.
	* langhooks.c (lhd_print_error_function): Use pp_newline_and_flush
	instead of pp_flush.
	* diagnostic.c (diagnostic_finish): Likewise.
	(diagnostic_report_diagnostic): Likewise.
	(verbatim): Likewise.
	(error_recursion): Likewise.
	* tree-pretty-print.c (print_generic_stmt): Likewise.
	(print_generic_stmt_indented): LIkewise.
	* gimple-pretty-print.c (print_gimple_stmt): Likewise.
	(print_gimple_seq): Likewise.
	(gimple_dump_bb_buff): Likewise.

c-family/
	* c-pretty-print.c (pp_c_function_definition): Use pp_newline_and_flush
	instead of separate pp_newline and pp_flush.
	(print_c_tree): Likewise.

cp/
	* error.c (print_instantiation_context): Pretty-print a newline before
	diagnostic_flush_buffer.
	* cxx-pretty-print.c (pp_cxx_function_definition): Use
	pp_newline_and_flush instead of separate pp_newline and pp_flush.

testsuite/
	* gcc.dg/tree-prof/update-loopch.c: Ask for dump with blocks info.
	* gcc.dg/tree-ssa/attr-hotcold-2.c: Likewise.
	* gcc.dg/tree-ssa/pr18133-1.c: Likewise.

From-SVN: r190215

From-SVN: r190213

	* var-tracking.c (var_lowpart): Exit early for matched modes.

From-SVN: r190212