not in the template parameters.
* include/std/optional (operator=(_Up&&)): Move SFINAE
from template parameters to the return type.
(operator=(const optional<_Up>&)): Likewise.
(operator=(optional<_Up>&&)): Likewise.

From-SVN: r241372

	* include/bits/allocator.h: Remove trailing whitespace, tab-indent.
	* include/ext/new_allocator.h: Likewise.

From-SVN: r241371

	* gcc-interface/Makefile (x86-64/Linux): Restore missing pairs.
	(x86/Darwin): Likewise.

From-SVN: r241369

class.c (gfc_build_class_symbol): Set the kind of _len to gfc_charlen_int_kind to catch changes of the charlen kind.

gcc/fortran/ChangeLog:

2016-10-20  Andre Vehreschild  <vehre@gcc.gnu.org>

	* class.c (gfc_build_class_symbol): Set the kind of _len to
	gfc_charlen_int_kind to catch changes of the charlen kind.

From-SVN: r241367

2016-10-20  Richard Biener  <rguenther@suse.de>

	* gcc.dg/graphite/pr35356-1.c: Update.

From-SVN: r241366

	PR libstdc++/78052
	* include/bits/allocator.h (allocator<void>::construct)
	(allocator<void>::destroy): Define.
	* testsuite/20_util/allocator/void.cc: New test.

From-SVN: r241365

	* testsuite/20_util/enable_shared_from_this/56383.cc: Add tests for
	additional ambiguous cases.

From-SVN: r241364

2016-10-20  Richard Biener  <rguenther@suse.de>

	* cgraphunit.c (analyze_functions): Set node->definition to
	false to signal symbol removal to debug_hooks->late_global_decl.
	* ipa.c (symbol_table::remove_unreachable_nodes): When not in
	WPA signal symbol removal to the debuginfo machinery.
	* dwarf2out.c (dwarf2out_late_global_decl): Instead of
	using early_finised to guard the we're called for symbol
	removal case look at the symtabs definition flag.
	(gen_variable_die): Remove redundant check.

From-SVN: r241363

gcc/ChangeLog:

2016-10-20  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("prefetch"): Add fallthrough comment.

From-SVN: r241362

2016-10-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/77446
	* g++.dg/cpp1y/pr77446.C: New.

From-SVN: r241361

2016-10-20  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	PR tree-optimization/53979
	* match.pd ((a ^ b) | a -> a | b): New pattern.

testsuite/
	* gcc.dg/pr53979-1.c: New test-case.
	* gcc.dg/pr53979-2.c: Likewise.

From-SVN: r241360

From-SVN: r241359

libgcc/
	* config/pa/pa64-hpux-lib.h: New file.  
	(EH_FRAME_SECTION_NAME): Rename to __LIBGCC_EH_FRAME_SECTION_NAME__.
	(DTORS_SECTION_ASM_OP): Rename to __LIBGCC_DTORS_SECTION_ASM_OP__.
	* config.host (tm_file): Add pa/pa64-hpux-lib.h to tm_file on
	hppa*64*-*-hpux11*.
gcc/
	* config/pa/pa64-hpux.h (PA_INIT_FRAME_DUMMY_ASM_OP): Move to
	config/pa/pa64-hpux-lib.h.
	(PA_CRTBEGIN_HACK): Likewise.
	(DTOR_LIST_BEGIN): Likewise.

From-SVN: r241356

c-common.c (c_common_truthvalue_conversion): Warn only for signed integer shift ops in boolean context.

2016-10-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-common.c (c_common_truthvalue_conversion): Warn only for signed
        integer shift ops in boolean context.

testsuite:
2016-10-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-c++-common/Wint-in-bool-context-2.c: New test.

From-SVN: r241354

	* include/backward/auto_ptr.h (__shared_ptr(auto_ptr&&)): Call
	_M_enable_shared_from_this_with instead of
	__enable_shared_from_this_helper.
	* include/bits/shared_ptr.h (__enable_shared_from_this_helper):
	Remove overload for std::enable_shared_from_this..
	(__enable_shared_from_this_base): Define friend function to select a
	std::enable_shared_from_this base class.
	* include/bits/shared_ptr_base.h (__enable_shared_from_this_helper):
	Remove all overloads.
	(__shared_ptr): Change all relevant constructors to call
	_M_enable_shared_from_this_with instead of
	__enable_shared_from_this_helper.
	(__shared_ptr::__efst_base_t, __shared_ptr::__has_efst_base): Helpers
	to detect accessible and unambiguous enable_shared_from_this bases.
	(__shared_ptr::_M_enable_shared_from_this_with): New function to
	replace __enable_shared_from_this_helper overloads.
	(__enable_shared_from_this_helper): Remove overload for
	std::__enable_shared_from_this.
	(__enable_shared_from_this_base): Define friend function to select a
	std::__enable_shared_from_this base class.
	* include/experimental/bits/shared_ptr.h (experimental::shared_ptr):
	Change relevant constructors to call _M_enable_shared_from_this_with.
	(experimental::shared_ptr::__efst_base_t)
	(experimental::shared_ptr::__has_efst_base): Helpers to detect
	accessible and unambiguous enable_shared_from_this bases.
	(experimental::shared_ptr::_M_enable_shared_from_this_with): Define.
	(experimental::__enable_shared_from_this_helper): Remove overload for
	std::experimental::enable_shared_from_this.
	(experimental::__expt_enable_shared_from_this_base): Define friend
	function to select a std::experimental::enable_shared_from_this base.
	* testsuite/experimental/memory/shared_ptr/cons/
	enable_shared_from_this.cc: New test.
	* testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc:
	Adjust expected behaviour for shared_ptr<A[]>.

From-SVN: r241353

2016-10-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* gfortran.dg/dtio_17.f90: Fix test.

From-SVN: r241352

	* gcc.dg/Walloca-1.c: Adjust test for !lp64 targets.
	* gcc.dg/Walloca-2.c: Same.

From-SVN: r241351

	* include/debug/vector (__gnu_debug::vector::emplace_back): Fix return
	type.

From-SVN: r241350

	* include/backward/auto_ptr.h (dauto_ptr): Correct comment about
	conversions from auto_ptr<Derived> rvalues to auto_ptr<Base>.
	* testsuite/20_util/auto_ptr/assign_neg.cc: Remove redundant dg-error
	directives that only match notes, not errors.

From-SVN: r241349

arm.c (arm_emit_coreregs_64bit_shift): Clear the result register only if "in" and "out" are different registers.

2016-10-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * config/arm/arm.c (arm_emit_coreregs_64bit_shift): Clear the result
        register only if "in" and "out" are different registers.

From-SVN: r241348

    
    The C definition is 1U << 31.  Reportedly on some systems GCC's
    -fgo-dump-spec can print this as -2147483648.
    
    Reviewed-on: https://go-review.googlesource.com/31448

From-SVN: r241347

	* gcc.dg/Wvla-1.c: Rename to...
	* gcc.dg/Wvla-larger-than-1.c: ...this.
	* gcc.dg/Wvla-2.c: Rename to...
	* gcc.dg/Wvla-larger-than-2.c: ...this.
	* gcc.dg/Wvla-3.c: Rename to...
	* gcc.dg/Walloca-11.c.: ...this.
	* gcc.dg/wvla-[1-7].c: Rename to:
	* gcc.dg/Wvla-[1-7].c: ...this.

From-SVN: r241344

	* omp-low.c (pass_oacc_device_lower::gate): New method.
	(execute): Always call execute_oacc_device_lower.

From-SVN: r241343

re PR tree-optimization/77916 (ICE in verify_gimple_in_cfg: invalid (pointer) operands to plus/minus)

2016-10-19  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/77916
	PR tree-optimization/77937
	* gimple-ssa-strength-reduction.c (analyze_increments): Remove
	stopgap fix.
	(insert_initializers): Requirement of initializer for -1 should be
	based on pointer-typedness of the candidate basis.

From-SVN: r241342

	* testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc:
	Add tests for valid and invalid conversions.
	* testsuite/experimental/memory/shared_ptr/cons/weak_ptr_ctor.cc:
	Likewise.

From-SVN: r241340

	PR tree-optimization/78005
	* tree-vect-loop-manip.c (vect_gen_prolog_loop_niters): Compute
	upper (included) bound for niters of prolog loop.
	(vect_gen_scalar_loop_niters): Change parameter VF to VFM1.
	Compute niters of scalar loop above which vectorized loop is
	preferred, as well as the upper (included) bound for the niters.
	(vect_do_peeling): Record niter bound for loops accordingly.

	gcc/testsuite
	PR tree-optimization/78005
	* gcc.dg/vect/pr78005.c: New.
	* gcc.target/i386/l_fma_float_1.c: Revise test.
	* gcc.target/i386/l_fma_float_2.c: Ditto.
	* gcc.target/i386/l_fma_float_3.c: Ditto.
	* gcc.target/i386/l_fma_float_4.c: Ditto.
	* gcc.target/i386/l_fma_float_5.c: Ditto.
	* gcc.target/i386/l_fma_float_6.c: Ditto.
	* gcc.target/i386/l_fma_double_1.c: Ditto.
	* gcc.target/i386/l_fma_double_2.c: Ditto.
	* gcc.target/i386/l_fma_double_3.c: Ditto.
	* gcc.target/i386/l_fma_double_4.c: Ditto.
	* gcc.target/i386/l_fma_double_5.c: Ditto.
	* gcc.target/i386/l_fma_double_6.c: Ditto.

From-SVN: r241339

	gcc/
	PR lto/77458
	* tree-core.h (enum tree_index): Put the complex types after their
	component types.
	* tree-streamer.c (verify_common_node_recorded): New function.
	(preload_common_nodes) <TREE_CODE (node) == COMPLEX_TYPE>: Use it.

From-SVN: r241338

	* cgraph.h (cgraph_edge::binds_to_current_def_p):
	Replace NULL with false as a return value.

From-SVN: r241336

[PR tree-optimization/78024] Clear basic block flags before using BB_VISITED for OpenACC loops processing

	gcc/
	* omp-low.c (oacc_loop_discovery): Call clear_bb_flags before, and
	don't clear BB_VISITED after processing.

	gcc/testsuite/
	* gcc.dg/goacc/loop-processing-1.c: New file.

From-SVN: r241334

	* testsuite/20_util/unique_ptr/cons/cv_qual.cc: Move negative tests
	to new file.
	* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: New file.  Fix
	test for incompatible deleters to not also use incompatible types.
	Add tests for incompatible array types.

From-SVN: r241332

	* include/experimental/bits/shared_ptr.h
	(__shared_ptr<__libfund_v1<_Tp, false>, _Lp>::_Compatible): Just use
	is_convertible for non-array specialization.
	(__shared_ptr<__libfund_v1<_Tp, false>, _Lp>::_UniqCompatible): New
	constraint for conversions from unique_ptr.
	(__shared_ptr<__libfund_v1<_Tp, false>, _Lp>::__shared_ptr): Constrain.
	(__shared_ptr<__libfund_v1<_Tp, false>, _Lp>::reset): Likewise.
	(__sp_compatible_v): New variable template for trait.
	(__sp_is_constructible): New trait to check shared_ptr constraints.
	(__sp_is_constructible_v): New variable template for trait.
	(__shared_ptr<__libfund_v1<_Tp, true>, _Lp>::_SafeConv): New
	constraint for construction/reset, using __sp_is_constructible_v.
	(__shared_ptr<__libfund_v1<_Tp, true>, _Lp>::_UniqCompatible): New
	constraint for conversions from unique_ptr.
	(__shared_ptr<__libfund_v1<_Tp, true>, _Lp>::__shared_ptr): Constrain.
	(__shared_ptr<__libfund_v1<_Tp, true>, _Lp>::reset): Likewise.
	(shared_ptr::_SafeConv): Constraint for checking constructors.
	(shared_ptr(Tp1*), shared_ptr(_Tp1, _Deleter))
	(shared_ptr(_Tp1, _Deleter, _Alloc)): Constrain with _SafeConv.
	(shared_ptr(const weak_ptr<_Tp1>&)): Constrain with _Compatible.
	(shared_ptr(auto_ptr<_Tp1>&&)): Fix, remove TODO.
	* testsuite/experimental/memory/shared_ptr/cons/pointer_ctor.cc:
	Remove tests using invalid conversions.
	* testsuite/experimental/memory/shared_ptr/cons/pointer_ctor_neg.cc:
	New test.
	* testsuite/experimental/memory/shared_ptr/cons/torture.cc: New test.
	* testsuite/experimental/memory/shared_ptr/modifiers/reset.cc: Remove
	tests using invalid conversions.
	* testsuite/experimental/memory/shared_ptr/modifiers/reset_neg.cc: New
	test.
	* testsuite/experimental/memory/shared_ptr/observers/use_count.cc:
	Remove tests using invalid conversions.

From-SVN: r241331

	PR libstdc++/77990
	* include/bits/unique_ptr.h (__uniq_ptr_impl): New type to
	encapsulate implementation details.
	(unique_ptr::unique_ptr(_Up)): Don't copy deleter object.
	(unique_ptr::get, unique_ptr::get_deleter, unique_ptr::release):
	Call member functions of implementation object.
	(unique_ptr<T[], D>): Likewise.
	* python/libstdcxx/v6/printers.py (UniquePointerPrinter): Adjust for
	new implementation.
	* python/libstdcxx/v6/xmethods.py (UniquePtrGetWorker): Likewise.
	* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Adjust dg-error
	lines.
	* testsuite/20_util/unique_ptr/assign/cv_qual.cc: Likewise.
	* testsuite/20_util/unique_ptr/cons/cv_qual.cc: Likewise.
	* testsuite/20_util/unique_ptr/cons/77990.cc: New test.

From-SVN: r241330

2016-10-19  Richard Biener  <rguenther@suse.de>

	* domwalk.c (dom_walker::walk): Use RPO order.

From-SVN: r241329

	* system-linux-armel.ads: Rename into...
	* system-linux-arm.ads: ...this
	* gcc-interface/Makefile.in (ARM/Android): Adjust to above renaming.
	(ARM/Linux): Likewise.
	(Aarch64/Linux): Likewise.

From-SVN: r241328

2016-10-19  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (evrp_dom_walker::evrp_dom_walker): Initialize
	stmts_to_remove.
	(evrp_dom_walker::~evrp_dom_walker): Free it.
	(evrp_dom_walker::stmts_to_remove): Add.
	(evrp_dom_walker::before_dom_children): Mark PHIs and stmts
	whose output we fully propagate for removal.  Propagate
	into BB destination PHI arguments.
	(execute_early_vrp): Remove queued stmts.  Dump value ranges
	before stmt removal.

	* gcc.dg/tree-ssa/pr61839_2.c: Fix testcase.

From-SVN: r241327

From-SVN: r241326

From-SVN: r241322

	* Makefile.in (OBJS): Add gimple-ssa-warn-alloca.o.
	* passes.def: Add two instances of pass_walloca.
	* tree-pass.h (make_pass_walloca): New.
	* gimple-ssa-warn-walloca.c: New file.
	* doc/invoke.texi: Document -Walloca, -Walloca-larger-than=, and
	-Wvla-larger-than= options.

From-SVN: r241318

	* gcc-interface/Makefile.in (EXTRA_GNATRTL_NONTASKING_OBJS): Define.
	(EXTRA_GNATRTL_TASKING_OBJS): Likewise.
	(ARM/Android): Add atomic support.
	(SPARC/Solaris): Simplify.
	(x86/Solaris): Likewise.
	(x86/Linux): Likewise.
	(x86-64/kFreeBDS): Adjust and use system-freebsd-x86.ads
	(x86/FreeBSD): Add s-mudido-affinity.adb.
	(x86-64/FreeBSD): Likewise and use system-freebsd-x86.ads.
	(s390/Linux): Simplify.
	(PowerPC/AIX): Likewise.
	(Cygwin/Mingw): Likewise.
	(MIPSel/Linux): Likewise.
	(ARM/Linux): Add atomic support.
	(Aarch64/Linux): Use system-linux-armel.ads.
	(SPARC/Linux): Simplify.
	(IA-64/Linux): Minor tweak.
	(IA-64/HP-UX): Likewise.
	(Alpha/Linux): Likewise.
	(x86-64/Linux): Use system-linux-x86.ads.
	(x86/Darwin): Simplify.
	(PowerPC/Darwin): Likewise.
	(ARM/Darwin): Use system-darwin-arm.ads.
	(ADA_EXCLUDE_SRCS): Minor reformatting.
	* system-aix.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	(Support_Atomic_Primitives): Set to True.
	* system-aix64.ads: Delete.
	* system-darwin-arm.ads: New.
	* system-darwin-ppc.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	(Support_Atomic_Primitives): Set to True.
	* system-darwin-ppc64.ads: New.
	* system-darwin-x86.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-darwin-x86_64.ads: Delete.
	* system-freebsd-x86.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-freebsd-x86_64.ads: Delete.
	* system-linux-alpha.ads (Support_Atomic_Primitives): Set to True.
	* system-linux-armeb.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	(Support_Atomic_Primitives): Set to True.
	* system-linux-armel.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	(Support_Atomic_Primitives): Set to True.
	* system-linux-mips.ads: (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-linux-mipsel.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-linux-s390.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	(Stack_Check_Probes): Set to True.
	* system-linux-s390x.ads: Delete.
	* system-linux-sparc.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-linux-sparcv9.ads: Delete.
	* system-linux-x86.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-linux-x86_64.ads: Delete.
	* system-mingw-x86_64.ads: Delete.
	* system-mingw.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-solaris-sparc.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	(Support_Atomic_Primitives): Set to True.
	* system-solaris-sparcv9.ads: Delete.
	* system-solaris-x86.ads (Word_Size): Change to Standard'Word_Size.
	(Memory_Size): Change to 2 ** Word_Size.
	* system-solaris-x86_64.ads: Delete.

From-SVN: r241316

	gcc/
	* cfg.c (clear_bb_flags): Use FOR_ALL_BB_FN.
	* config/nvptx/nvptx.c (nvptx_find_sese): Likewise.

From-SVN: r241315