for  gcc/ChangeLog

	PR rtl-optimization/64164
	PR bootstrap/66978
	PR middle-end/66983
	PR rtl-optimization/67000
	PR middle-end/67034
	PR middle-end/67035
	* Makefile.in (OBJS): Drop tree-ssa-copyrename.o.
	* tree-ssa-copyrename.c: Removed.
	* opts.c (default_options_table): Drop -ftree-copyrename.  Add
	-ftree-coalesce-vars.
	* passes.def: Drop all occurrences of pass_rename_ssa_copies.
	* common.opt (ftree-copyrename): Ignore.
	(ftree-coalesce-inlined-vars): Likewise.
	* doc/invoke.texi: Remove the ignored options above.
	* gimple-expr.h (gimple_can_coalesce_p): Move declaration
	* tree-ssa-coalesce.h: ... here.
	* tree-ssa-uncprop.c: Include tree-ssa-coalesce.h and other
	headers required by it.
	* gimple-expr.c (gimple_can_coalesce_p): Allow coalescing
	across variables when flag_tree_coalesce_vars.  Check register
	use and promoted modes to allow coalescing.  Do not coalesce
	maybe-byref parms with SSA_NAMEs of other variables, or
	anonymous SSA_NAMEs.  Moved to tree-ssa-coalesce.c.
	* tree-ssa-live.c (struct tree_int_map_hasher): Move along
	with its member functions to tree-ssa-coalesce.c.
	(var_map_base_init): Likewise.  Renamed to
	compute_samebase_partition_bases.
	(partition_view_normal): Drop want_bases parameter.
	(partition_view_bitmap): Likewise.
	* tree-ssa-live.h: Adjust declarations.
	* tree-ssa-coalesce.c: Include explow.h and cfgexpand.h.
	(build_ssa_conflict_graph): Process PARM_ and RESULT_DECLs's
	default defs at the entry point.
	(dump_part_var_map): New.
	(compute_optimized_partition_bases): New, called by...
	(coalesce_ssa_name): ... when flag_tree_coalesce_vars, instead
	of compute_samebase_partition_bases.  Adjust.
	* alias.c (nonoverlapping_memrefs_p): Disregard gimple-regs.
	* cfgexpand.c (leader_merge, parm_maybe_byref_p): New.
	(ssa_default_def_partition): New.
	(get_rtl_for_parm_ssa_default_def): New.
	(align_local_variable, add_stack_var): Support anonymous SSA
	names.
	(defer_stack_allocation): Likewise.  Declare earlier.
	(set_rtl): Merge exprs and attrs, even for MEMs and non-SSA
	vars.  Update DECL_RTL for PARM_DECLs and RESULT_DECLs too.
	Do no record deferred-allocation marker in
	SA.partition_to_pseudo.
	(expand_stack_vars): Adjust check for the marker in it.
	(expand_one_stack_var_at): Handle anonymous SSA_NAMEs.  Drop
	redundant MEM attr setting.
	(expand_one_stack_var_1): Handle anonymous SSA_NAMEs.  Renamed
	from...
	(expand_one_stack_var): ... this.  New wrapper to check and
	skip already expanded SSA partitions.
	(record_alignment_for_reg_var): New, factored out of...
	(expand_one_var): ... this.
	(expand_one_ssa_partition): New.
	(adjust_one_expanded_partition_var): New.
	(expand_one_register_var): Check and skip already expanded SSA
	partitions.
	(expand_used_vars): Don't create DECLs for anonymous SSA
	names.  Expand all SSA partitions, then adjust all SSA names.
	(pass::execute): Replace the loops that set
	SA.partition_to_pseudo from partition leaders and cleared
	DECL_RTL for multi-location variables, and that which used to
	rename vars and set attrs, with one that clears DECL_RTL and
	checks that PARMs and RESULTs default_defs match DECL_RTL.
	* cfgexpand.h (get_rtl_for_parm_ssa_default_def): Declare.
	* emit-rtl.c: Include stor-layout.h.
	(set_reg_attrs_for_parm): Handle NULL decl.
	(set_reg_attrs_for_decl_rtl): Take mode from expression if
	it's not a DECL.
	* stmt.c (emit_case_decision_tree): Pass it the SSA_NAME
	rather than its possibly-NULL DECL.
	* explow.c (promote_ssa_mode): New.
	* explow.h (promote_ssa_mode): Declare.
	* expr.c (expand_expr_real_1): Handle anonymous SSA_NAMEs.
	(read_complex_part): Export.
	* expr.h (read_complex_part): Declare.
	* cfgexpand.h (parm_maybe_byref_p): Declare.
	* function.c: Include cfgexpand.h.
	(use_register_for_decl): Handle SSA_NAMEs, anonymous or not.
	(use_register_for_parm_decl): Wrapper for the above to
	special-case the result_ptr.
	(rtl_for_parm): Ditto for get_rtl_for_parm_ssa_default_def.
	(split_complex_args): Take assign_parm_data_all argument.
	Pass it to rtl_for_parm.  Set up rtl and context for split
	args.  Reset complex parm before fetching its default decl
	rtl.
	(assign_parms_unsplit_complex): Use the default-def complex
	parm rtl if it matches the components.
	(assign_parms_augmented_arg_list): Adjust.
	(maybe_reset_rtl_for_parm): Reset DECL_RTL of parms with
	multiple locations.  Recognize split complex args.
	(assign_parm_adjust_stack_rtl): Add all and parm arguments,
	for rtl_for_parm.  For SSA-assigned parms, zero stack_parm.
	(assign_parm_setup_block): Prefer SSA-assigned location, and
	fill in its address if the memory location of a maybe-byref
	parm was not assigned by cfgexpand.
	(assign_parm_setup_reg): Likewise.  Adjust its mode as
	needed.  Use entry_parm for equiv if stack_parm is NULL.  Make
	sure passed_pointer parms don't need conversion.  Copy address
	or value as needed.
	(assign_parm_setup_stack): Prefer SSA-assigned location.
	(assign_parms): Maybe reset DECL_RTL of params.  Adjust stack
	rtl before testing for pointer bounds.  Special-case result_ptr.
	(expand_function_start): Maybe reset DECL_RTL of result.
	Prefer SSA-assigned location for result and static chain.
	Factor out DECL_RESULT and SET_DECL_RTL.  Convert static chain
	to Pmode if needed, from H.J. Lu  <hongjiu.lu@intel.com>.
	* tree-outof-ssa.c (insert_value_copy_on_edge): Handle
	anonymous SSA names.  Use promote_ssa_mode.
	(get_temp_reg): Likewise.
	(remove_ssa_form): Adjust.
	* stor-layout.c (layout_decl): Don't set mem attributes of
	non-MEMs.
	* var-tracking.c (dataflow_set_clear_at_call): Take call_insn
	and get its reg_usage for reg invalidation.
	(compute_bb_dataflow): Pass it insn.
	(emit_notes_in_bb): Likewise.

for  gcc/testsuite/ChangeLog

	* gcc.dg/guality/pr54200.c: Add -fno-tree-coalesce-vars.
	* gcc.dg/ssp-1.c: Make counter a register.
	* gcc.dg/ssp-2.c: Likewise.
	* gcc.dg/torture/parm-coalesce.c: New.

From-SVN: r226901

From-SVN: r226900

    
    gccgo used to crash when presented with an invalid receiver type in a
    method.  Instead, unnamed receiver types should report an error.
    
    Fixes golang/go#11557.
    
    Reviewed-on: https://go-review.googlesource.com/13245

From-SVN: r226899

	PR middle-end/67133
	* gimple.c (infer_nonnull_range_by_attribute): Check that the
	nonnull argument position is not outside function arguments.

	* gcc.dg/torture/pr67133.c: New test.

From-SVN: r226896

gcc/
2015-08-14  Matthew Wahab  <matthew.wahab@arm.com>

	PR target/67143
	* config/aarch64/atomics.md (atomic_<optab><mode>): Replace
	'lconst_atomic' with 'const_atomic'.
	(atomic_fetch_<optab><mode>): Likewise.
	(atomic_<optab>_fetch<mode>): Likewise.
	* config/aarch64/iterators.md (lconst-atomic): Move below
	'const_atomic'.
	(const_atomic): New.

gcc/testsuite/
2015-08-14  Matthew Wahab  <matthew.wahab@arm.com>
	    Matthias Klose  <doko@debian.org>

	PR target/67143
	* gcc.c-torture/compile/pr67143.c: New
	* gcc.target/aarch64/atomic-op-imm.c
	(atomic_fetch_add_negative_RELAXED): New.
	(atomic_fetch_sub_negative_ACQUIRE): New.


Co-Authored-By: Matthias Klose <doko@debian.org>

From-SVN: r226895

	* include/experimental/any (any::operator=(const any&)): Move check
	for self-assignment.
	(any::operator=(any&&)): Add check for self-assignment.
	(any::operator=(_ValueType&&)): Constrain template argument.
	(any::swap(any&)): Add check for self-swap.
	* testsuite/experimental/any/assign/self.cc: Test move and swap.
	* testsuite/experimental/any/misc/any_cast_neg.cc: Update dg-error.

From-SVN: r226894

	* include/experimental/array: Add feature-test macro.
	* testsuite/experimental/array/neg.cc: Update dg-error.

From-SVN: r226893

        * inclhack.def (aix_stdio_inline): New fix.
        (aix_strtof_const): Limit to *-*-aix*.
        (aix_sysmachine): Same.
        (aix_syswait_2): Same.
        (aix_volatile):	Same.
        * fixincl.x: Regenerated.
        * test/base/stdio.h [AIX_STDIO_INLINE]: New test.

From-SVN: r226891

	gcc/
	* config/nvptx/nvptx.c (nvptx_option_override): Don't override
	debug options.
	* config/nvptx/nvptx.h (DWARF2_LINENO_DEBUGGING_INFO): Define.
	(DWARF2_DEBUGGING_INFO): Don't define.
	* debug.h (dwarf2_lineno_debug_hooks): Declare.
	* toplev.c (process_options): Add a case for it.
	* dwarf2out.c (dwarf2_lineno_debug_hooks): New variable.
	(dwarf2out_init): Skip most initializations if
	DWARF2_LINENO_DEBUGGING_INFO, but set cur_line_info_table in that
	case.
	* defaults.h (PREFERRED_DEBUGGING_TYPE): Also use DWARF2_DEBUG if
	DWARF2_LINENO_DEBUGGING_INFO.
	* opts.c (set_debug_level): Likewise.

Co-Authored-By: Bernd Schmidt <bernds@codesourcery.com>

From-SVN: r226890

	* gcc.target/aarch64/target_attr_5.c: Add static modifier to bar.
	* gcc.target/aarch64/target_attr_8.c: Likewise.
	* gcc.target/aarch64/target_attr_14.c: Likewise.

From-SVN: r226889

include/ChangeLog:

	* dwarf2.def (DW_AT_GNU_bias): New attribute.

From-SVN: r226888

include/ChangeLog:

	* dwarf2.def (DW_AT_GNU_numerator, DW_AT_GNU_denominator): New
	attributes.

From-SVN: r226887

	* gcc.target/aarch64/target_attr_1.c: Make test compile-only.

From-SVN: r226886

gcc/

	* config/arm/types.md (is_neon_type): Add missing types.

From-SVN: r226885

gcc/

	* config/i386/driver-i386.c (host_detect_local_cpu): Add support
	for skylake.
	* config/i386/i386.c (PTA_SKYLAKE): New macros.
	(processor_alias_table): Add skylake description.
	(enum processor_model): Add skylake processor.
	(arch_names_table): Add skylake record.
	* doc/invoke.texi: Add skylake item.

gcc/testsuite/

	* gcc.target/i386/builtin_target.c: Add skylake check.

libgcc/

	* config/i386/cpuinfo.c (enum processor_subtypes): Add skylake.
	(get_intel_cpu): Likewise.

From-SVN: r226884

gcc/jit/ChangeLog:
	* jit-playback.c (invoke_driver): On OS X, add
	"-Wl,-undefined,dynamic_lookup" to the driver arguments.

From-SVN: r226882

From-SVN: r226881

	* dwarf.c (read_function_entry): Add vec_inlined parameter.
	Change all callers.

From-SVN: r226878

	* gcc.dg/pr66314.c: Moved from here to ..
	* gcc.dg/asan/pr66314.c: Here.  Use -fno-sanitize=all
	to clear all sanitizers before -fsanitize=kernel-address.

From-SVN: r226877

	* ira-int.h: Include recog.h.
	* ira-build.c: Don't include recog.h.
	* ira-color.c: Likewise.
	* ira-conflicts.c: Likewise.
	* ira-costs.c: Likewise.
	* ira-emit.c: Likewise.
	* ira-lives.c: Likewise.
	* ira.c: Likewise.
	* sched-deps.c: Likewise.
	* sel-sched.c: Likewise.
	* target-globals.c: Likewise.

From-SVN: r226876

re PR middle-end/55035 (reload1.c:3766:41: error: ‘orig_dup[0]’ may be used uninitialized in this function (for fr30, microblaze, moxie, rl78))

gcc/
	PR bootstrap/55035
	* reload1.c (elimination_costs_in_insn): Make it obvious to the
	compiler that the n_dups and n_operands loop bounds are invariant.

From-SVN: r226874

	* ifcvt.c (noce_try_store_flag_constants): Handle PLUS-immediate
	expressions in A and B.

	* gcc.target/aarch64/cinc_common_1.c: New test.

From-SVN: r226869

re PR c++/53421 (__attribute__((__may_alias__)) prevents taking address of conversion operator member function)

2015-08-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/53421
	* g++.dg/ext/attribute-may-alias-1.C: New.
	* g++.dg/ext/attribute-may-alias-2.C: Likewise.

From-SVN: r226868

2015-08-13  Ville Voutilainen  <ville.voutilainen@gmail.com>

        * testsuite/experimental/array/neg.s: Remove.
        * testsuite/experimental/array/neg.ii.gz: Remove.

From-SVN: r226866

Implement std::experimental::fundamentals_v2::make_array and std::experimental::fundamentals_v2::to_array.

2015-08-13  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Implement std::experimental::fundamentals_v2::make_array and
	std::experimental::fundamentals_v2::to_array.
	* include/Makefile.am: Add array.
	* include/Makefile.in: Add array.
	* include/experimental/array: New.
	* testsuite/experimental/array/make_array.cc: Likewise.
	* testsuite/experimental/array/neg.cc: Likewise.
	* doc/html/manual/status.html: Mark make_array as Y.
	* doc/xml/manual/status_cxx2017.xml: Likewise.

From-SVN: r226865

	* include/bits/alloc_traits.h: Add feature-test macro.
	* include/bits/allocator.h: Likewise.
	* include/bits/range_access.h: Likewise.
	* include/bits/stl_map.h: Likewise.
	* include/bits/unordered_map.h: Likewise.

From-SVN: r226864

	* testsuite/30_threads/mutex/unlock/2.cc: New.
	* testsuite/30_threads/recursive_mutex/unlock/2.cc: New.
	* testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: New.
	* testsuite/30_threads/shared_mutex/unlock/1.cc: New.
	* testsuite/30_threads/shared_timed_mutex/unlock/1.cc: New.
	* testsuite/30_threads/timed_mutex/unlock/2.cc: New.

From-SVN: r226863

2015-08-13  Eelis van der Weegen  <eelis@eelis.net>

	* include/std/shared_mutex (shared_mutex::unlock()): Fix typo.

From-SVN: r226862

2015-08-13  Richard Biener  <rguenther@suse.de>

	* tree.c (nonnull_arg_p): Move from ...
	* tree-vrp.c (nonnull_arg_p): ... here.
	* tree.h (nonnull_arg_p): Declare.
	* tree-ssa-sccvn.c (init_scc_vn): Perform all lattice init
	here, register ptr != 0 for nonnull_arg_p pointer arguments.
	Properly initialize static chain and by-reference result pointer.
	(run_scc_vn): Adjust.

From-SVN: r226861

gcc/
	* config/mips/mips.h (ENABLE_LD_ST_PAIRS): Enable load/store pairs for
	I6400.

From-SVN: r226860

	* gcc.target/aarch64/atomic-inst-cas.c: New.
	* gcc.target/aarch64/atomic-inst-ops.inc: New.

From-SVN: r226859

	(aarch64_gen_atomic_cas): Declare.
	* config/aarch64/aarch64.c (aarch64_expand_compare_and_swap):
	Choose appropriate instruction pattern for the target.
	(aarch64_gen_atomic_cas): New.
	* config/aarch64/atomics.md (UNSPECV_ATOMIC_CAS): New.
	(atomic_compare_and_swap<mode>_1): Rename to
	aarch64_compare_and_swap<mode>.  Fix some indentation.
	(aarch64_compare_and_swap<mode>_lse): New.
	(aarch64_atomic_cas<mode>): New.

From-SVN: r226858

	* config/aarch64/aarch64.h (AARCH64_ISA_LSE): New.
	(TARGET_LSE): New.

From-SVN: r226857

From-SVN: r226856

2015-08-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/62164
	* g++.dg/torture/pr62164.C: New.

From-SVN: r226855

2015-08-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/67191
	* tree-ssa-sccvn.c (sccvn_dom_walker::before_dom_children): Remove
	assert we value-numbered last stmts operand because it can validly
	trigger for unreachable code.

	* gcc.dg/torture/pr67191.c: New testcase.
	* g++.dg/torture/pr67191.C: Likewise.

From-SVN: r226854

	PR rtl-optimization/67103
	* ifcvt.c (noce_try_store_flag_constants): Move
	x = (-(test != 0) & (b - a)) + a transformation to...
	(noce_try_cmove): ... Here.  Try it if normal conditional
	move fails.

From-SVN: r226853

tree-ssa-sccvn.c (vn_nary_op_compute_hash): Also canonicalize comparison operand order and commutative ternary op operand order.

2015-08-12  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (vn_nary_op_compute_hash): Also canonicalize
	comparison operand order and commutative ternary op operand order.
	(sccvn_dom_walker::cond_stack): New state to track temporary
	expressions.
	(sccvn_dom_walker::after_dom_children): Remove tempoary expressions
	no longer valid.
	(sccvn_dom_walker::record_cond): Add a single temporary conditional
	expression.
	(sccvn_dom_walker::record_conds): Add a temporary conditional
	expressions and all related expressions also true/false.
	(sccvn_dom_walker::before_dom_children): Record temporary
	expressions based on the controlling condition of a single
	predecessor.  When trying to simplify a conditional statement
	lookup expressions we might have inserted earlier.

	* testsuite/gcc.dg/tree-ssa/ssa-fre-47.c: New testcase.
	* testsuite/gcc.dg/tree-ssa/ssa-fre-48.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/ssa-fre-49.c: Likewise.
	* testsuite/g++.dg/tree-ssa/pr61034.C: Adjust.
	* testsuite/gcc.dg/fold-compare-2.c: Likewise.
	* testsuite/gcc.dg/pr50763.c: Likewise.
	* testsuite/gcc.dg/predict-3.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/20030709-2.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/pr19831-3.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/pr20657.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/pr21001.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/pr37508.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/vrp04.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/vrp07.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/vrp09.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/vrp16.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/vrp20.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/vrp25.c: Likewise.
	* testsuite/gcc.dg/tree-ssa/vrp87.c: Likewise.

From-SVN: r226852

gcc/
	* config/mips/mips.c (mips_rtx_cost_data): Remove costs for W32 and W64
	pseudo-processors.
	* config/mips/mips.md (processor): Remove w32 and w64.

From-SVN: r226851

2015-08-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/66502
	PR tree-optimization/67167
	* tree-ssa-sccvn.c (vn_phi_compute_hash): Do not include
	backedge arguments.
	(vn_phi_lookup): Adjust.
	(vn_phi_insert): Likewise.
	(visit_phi): Prefer to value-number to another PHI node
	over value-numbering to a PHI argument.
	(init_scc_vn): Mark DFS back edges.

	* gcc.dg/tree-ssa/ssa-fre-46.c: New testcase.

From-SVN: r226850