tree-vect-data-refs.c (vect_find_stmt_data_reference): Modify DR for SIMD lane accesses here and mark DR with (void *)-1 aux.

2018-06-25  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_find_stmt_data_reference): Modify
	DR for SIMD lane accesses here and mark DR with (void *)-1 aux.
	(vect_analyze_data_refs): Remove similar code from here and
	simplify accordingly.

From-SVN: r262008

tree-vect-data-refs.c (vect_check_gather_scatter): Fail for reverse storage order accesses rather than asserting they cannot...

2018-06-25  Richard Biener  <rguenther@suse.de>
        Eric Botcazou  <ebotcazou@libertysurf.fr>

	* tree-vect-data-refs.c (vect_check_gather_scatter): Fail
	for reverse storage order accesses rather than asserting
	they cannot happen here.

	* gnat.dg/sso9.adb: New testcase.
	* gnat.dg/sso9_pkg.ads: Likewise.

From-SVN: r262007

2018-06-25  Tom de Vries  <tdevries@suse.de>

	PR debug/86257
	* config/i386/i386.md (define_insn "*tls_global_dynamic_64_<mode>"):
	Use data16 instead of .byte for insn prefix.

	* gcc.target/i386/pr86257.c: New test.

From-SVN: r262006

When turning a user-defined numerical literal into an operator
invocation the literal needs to be translated to the execution
character set.

gcc/cp/ChangeLog:

2018-06-25  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR C++/86082
	* parser.c (make_char_string_pack): Pass this literal chars
	through cpp_interpret_string.
	(cp_parser_userdef_numeric_literal): Check the result of
	make_char_string_pack.

gcc/testsuite/ChangeLog:

2018-06-25  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR C++/86082
	* g++.dg/pr86082.C: New test.

From-SVN: r262003

From-SVN: r262002

	* ginclude/stddef.h: Simplify conditions around avoiding
	re-definition of __size_t.

From-SVN: r261998

	* libgomp.texi (Top): Move www.openmp.org to https.
	(Enabling OpenMP): Ditto.
	(omp_get_active_level): Ditto.
	(omp_get_ancestor_thread_num): Ditto.
	(omp_get_cancellation): Ditto.
	(omp_get_default_device): Ditto.
	(omp_get_dynamic): Ditto.
	(omp_get_level): Ditto.
	(omp_get_max_active_levels): Ditto.
	(omp_get_max_task_priority): Ditto.
	(omp_get_max_threads): Ditto.
	(omp_get_nested): Ditto.
	(omp_get_num_devices): Ditto.
	(omp_get_num_procs): Ditto.
	(omp_get_num_teams): Ditto.
	(omp_get_num_threads): Ditto.
	(omp_get_proc_bind): Ditto.
	(omp_get_schedule): Ditto.
	(omp_get_team_num): Ditto.
	(omp_get_team_size): Ditto.
	(omp_get_thread_limit): Ditto.
	(omp_get_thread_num): Ditto.
	(omp_in_parallel): Ditto.
	(omp_in_final): Ditto.
	(omp_is_initial_device): Ditto.
	(omp_set_default_device): Ditto.
	(omp_set_dynamic): Ditto.
	(omp_set_max_active_levels): Ditto.
	(omp_set_nested): Ditto.
	(omp_set_num_threads): Ditto.
	(omp_set_schedule): Ditto.
	(omp_init_lock): Ditto.
	(omp_set_lock): Ditto.
	(omp_test_lock): Ditto.
	(omp_unset_lock): Ditto.
	(omp_destroy_lock): Ditto.
	(omp_init_nest_lock): Ditto.
	(omp_set_nest_lock): Ditto.
	(omp_test_nest_lock): Ditto.
	(omp_unset_nest_lock): Ditto.
	(omp_destroy_nest_lock): Ditto.
	(omp_get_wtick): Ditto.
	(omp_get_wtime): Ditto.
	(OMP_CANCELLATION): Ditto.
	(OMP_DISPLAY_ENV): Ditto.
	(OMP_DEFAULT_DEVICE): Ditto.
	(OMP_DYNAMIC): Ditto.
	(OMP_MAX_ACTIVE_LEVELS): Ditto.
	(OMP_MAX_TASK_PRIORITY): Ditto.
	(OMP_NESTED): Ditto.
	(OMP_NUM_THREADS): Ditto.
	(OMP_PROC_BIND): Ditto.
	(OMP_PLACES): Ditto.
	(OMP_STACKSIZE): Ditto.
	(OMP_SCHEDULE): Ditto.
	(OMP_THREAD_LIMIT): Ditto.
	(OMP_WAIT_POLICY): Ditto.

From-SVN: r261997

lto-streamer-out.c (tree_is_indexable): Make LABEL_DECL nonindexable unless it is forced or nonlocal...


	* lto-streamer-out.c (tree_is_indexable): Make LABEL_DECL nonindexable
	unless it is forced or nonlocal; assert that we stream no IMPORTED_DECL.

From-SVN: r261995

2018-06-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/85983
	* interface.c (check_dtio_interface1): Delete assert.

From-SVN: r261994

From-SVN: r261992

2018-06-24  Tom de Vries  <tdevries@suse.de>

	* g++.dg/guality/guality.exp: Don't use which on gdb arg to report_gdb.
	* gcc.dg/guality/guality.exp: Same.
	* gfortran.dg/guality/guality.exp: Same.
	* lib/gcc-gdb-test.exp: Do early out if which gdb fails.

From-SVN: r261988

decl.c (bad_specifiers): Add const location_t* parameter and use locations in error messages about...

/cp
2018-06-23  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (bad_specifiers): Add const location_t* parameter and
	use locations in error messages about 'inline' and 'virtual'.
	(mark_inline_variable): Add location_t parameter and use it in
	error_at and pedwarn messages.
	(grokdeclarator): Use declspecs->locations[ds_constexpr],
	declspecs->locations[ds_concept], declspecs->locations[ds_virtual],
	declspecs->locations[ds_inline] in many error messages; adjust
	bad_specifiers and mark_inline_variable calls.
	(grokvardecl): Use declspecs->locations[ds_concept] in error message.

/testsuite
2018-06-23  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/concepts/locations1.C: New.
	* g++.dg/cpp0x/locations1.C: Likewise.
	* g++.dg/cpp1z/inline-var2.C: Test locations too.
	* g++.dg/cpp1z/inline-var3.C: Likewise.

From-SVN: r261982

        * doc/invoke.texi (mno-fancy-math-387): Update for changes
        made to OpenBSD and NetBSD through the years.

From-SVN: r261981

    
    USING_SPLIT_STACK is configured as defined/undefined, not 0/1.
    Most of the places test USING_SPLIT_STACK with #ifdef, with a
    few exceptions. This CL fixes the exceptions.
    
    Reviewed-on: https://go-review.googlesource.com/120596

From-SVN: r261980

From-SVN: r261979

2018-06-22  Paul Thomas  <pault@gcc.gnu.org>
	    Rainer Orth  <ro@gcc.gnu.org>

	PR fortran/86281
	* resolve.c (resolve_contained_fntype): Check for the charlen
	before testing the length.

2018-06-22  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/86281
	* gfortran.dg/assumed_charlen_function_7.f90: Add -std=legacy.


Co-Authored-By: Rainer Orth <ro@gcc.gnu.org>

From-SVN: r261975

gcc/ChangeLog:

2018-06-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Change
	behavior of vec_pack (vector double, vector double) to match
	behavior of vec_float2 (vector double, vector double).

gcc/testsuite/ChangeLog:

2018-06-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* gcc.target/powerpc/builtins-3-p8.c (test_pack_float): Remove
	this test.
	* gcc.target/powerpc/builtins-9.c: New test.
	* gcc.target/powerpc/fold-vec-pack-double.c: Modify dg directives
	to expect different code generation on big-endian vs.
	little-endian targets.

From-SVN: r261974

	* constexpr.c (fold_non_dependent_expr): Add complain parm.
	* call.c, expr.c, init.c, pt.c, semantics.c, typeck.c, typeck2.c:
	Pass it.
	* call.c (build_cxx_call): Don't mess with builtins in a template.
	* typeck2.c (store_init_value): If fold_non_dependent_expr didn't
	produce a constant value, go back to the uninstantiated form.

From-SVN: r261972

	* constexpr.c (same_type_ignoring_tlq_and_bounds_p): New.
	(cxx_fold_indirect_ref): Use it.
	(cxx_eval_constant_expression) [VIEW_CONVERT_EXPR]: Use it.
	* cp-tree.h (REF_PARENTHESIZED_P): Allow VIEW_CONVERT_EXPR.
	* semantics.c (force_paren_expr): Use VIEW_CONVERT_EXPR instead of
	static_cast to reference type.
	(maybe_undo_parenthesized_ref): Handle VIEW_CONVERT_EXPR.

From-SVN: r261971

2018-06-22  Tom de Vries  <tdevries@suse.de>

	* g++.dg/guality/guality.exp (guality_gdb_name): Default to
	$rootme/../gdb/gdb, if available.
	* gcc.dg/guality/guality.exp (guality_gdb_name): Same.
	* gfortran.dg/guality/guality.exp (guality_gdb_name): Same.

From-SVN: r261935

2018-06-22  Tom de Vries  <tdevries@suse.de>

	* lib/gcc-gdb-test.exp (report_gdb): New proc.
	* g++.dg/guality/guality.exp: Use report_gdb.
	* gcc.dg/guality/guality.exp: Same.
	* gfortran.dg/guality/guality.exp: Same.

From-SVN: r261911

re PR c++/85662 ("error: non-constant condition for static assertion" from __builtin_offsetof in C++)

	PR c++/85662
	* g++.dg/ext/offsetof3.C: New test.

From-SVN: r261909

2018-06-22  Olivier Hainque  <hainque@adacore.com>

	* gimplify.c (gimplify_function_tree): Prevent creation
	of a trampoline for the address of the current function
	passed to entry/exit instrumentation hooks.

From-SVN: r261908

From-SVN: r261906

2018-06-22  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000-string.c (expand_strn_compare): Handle -m32
	correctly.

From-SVN: r261905

gcc/testsuite/ChangeLog:

2018-06-22  Carl Love  <cel@us.ibm.com>

 	* gcc.target/powerpc/altivec-7.c: Add qualifiers for counts on AIX
	versus Linux.  Change checks for xxlnor, xxland and xxlxor to also look
	for the vnor, vand and vxor instructions.
	* gcc.target/powerpc/builtins-1.c: Move vec_or tests to a new file.
	Remove counts for xxlor. Fix match on bl __divdi3 and bl __udivdi3.
	* gcc.target/powerpc/builtins-4.c: Fix matching for vsl instructions.
	* gcc.target/powerpc/builtins-5.c: New test file for vec_or test cases.
 	* gcc.target/powerpc/vsx-vector-6.p7.c: Fix xxlnor BE expected count.
	Add -dp to dg-options, update expected counts.

From-SVN: r261904

	* gcc.c-torture/execute/builtins/lib/chk.c: Use smaller alignment
	if pdp11.
	* gcc.c-torture/compile/20010518-2.c: Skip if pdp11 -mint32.
	* gcc.c-torture/compile/20040101-1.c: Ditto.
	* gcc.c-torture/compile/20050622-1.c: Ditto.
	* gcc.c-torture/compile/20080625-1.c: Ditto.
	* gcc.c-torture/compile/20090107-1.c: Ditto.
	* gcc.c-torture/compile/920501-12.c: Ditto.
	* gcc.c-torture/compile/920501-4.c: Ditto.
	* gcc.c-torture/compile/961203-1.c: Ditto.
	* gcc.c-torture/compile/limits-externdecl.c: Ditto.
	* gcc.c-torture/compile/pr25310.c: Ditto.

From-SVN: r261897

    
    glibc 2.28 removes ustat.h and the ustat function entirely, which
    breaks syscall.Ustat.
    
    Updates golang/go#25990
    
    Reviewed-on: https://go-review.googlesource.com/120535

From-SVN: r261896

	* config/abi/pre/gnu.ver: Fix __cxx11::basic_string patterns for
	different size_t mangling on 32-bit targets.

From-SVN: r261892

	PR libstdc++/86280
	* include/experimental/memory_resource
	(__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
	enough for result of left shift.

From-SVN: r261888

2018-06-22  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/86263
	* tree-switch-conversion.c (jump_table_cluster::find_jump_tables):
        Bail out if is_enabled is false.
	* tree-switch-conversion.h (jump_table_cluster::is_enabled):
        New declaration.
	(jump_table_cluster::is_enabled): New function.

From-SVN: r261886

lto-streamer-out.c (DFS::DFS_write_tree_body): Do not stream BINFO_BASE_ACCESSES and BINFO_VPTR_FIELD.


	* lto-streamer-out.c (DFS::DFS_write_tree_body): Do not stream
	BINFO_BASE_ACCESSES and BINFO_VPTR_FIELD.
	* tree-streamer-in.c (streamer_read_tree_bitfields): Likewise.
	(lto_input_ts_binfo_tree_pointers): Likewise.
	* tree-streamer-out.c (streamer_write_tree_bitfields,
	write_ts_binfo_tree_pointers): Likewise.
	* tree.c (free_lang_data_in_binfo): Clear BINFO_VPTR_FIELD.

From-SVN: r261885

	gcc/testsuite/
	* c-c++-common/goacc/deviceptr-4.c: New file.
	* c-c++-common/goacc/kernels-counter-var-redundant-load.c:
	Likewise.
	* c-c++-common/goacc/kernels-loop-data-2.c: Likewise.
	* c-c++-common/goacc/kernels-loop-data-enter-exit-2.c: Likewise.
	* c-c++-common/goacc/kernels-loop-data-enter-exit.c: Likewise.
	* c-c++-common/goacc/kernels-loop-data-update.c: Likewise.
	* c-c++-common/goacc/kernels-loop-data.c: Likewise.
	* c-c++-common/goacc/kernels-parallel-loop-data-enter-exit.c:
	Likewise.
	* c-c++-common/goacc/parallel-reduction.c: Likewise.
	* c-c++-common/goacc/private-reduction-1.c: Likewise.
	* gfortran.dg/goacc/kernels-parallel-loop-data-enter-exit.f95:
	Likewise.
	* gfortran.dg/goacc/modules.f95: Likewise.
	* gfortran.dg/goacc/routine-8.f90: Likewise.
	* gfortran.dg/goacc/routine-level-of-parallelism-1.f90: Likewise.
	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/loop-red-wv-1.c: Don't force "-O2".
	* testsuite/libgomp.oacc-c-c++-common/data-2.c: Update.
	* testsuite/libgomp.oacc-c-c++-common/host_data-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/mode-transitions.c: Likewise.
	* testsuite/libgomp.oacc-fortran/data-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/data-2.f90: Likewise.
	* testsuite/libgomp.oacc-c++/non-scalar-data.C: New file.
	* testsuite/libgomp.oacc-c-c++-common/declare-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/enter-data.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-enter-exit-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-enter-exit.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-update.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-parallel-loop-data-enter-exit.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-3.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-4.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-5.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-3.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-4.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-5.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-6.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-vector-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-vector-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-3.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-4.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-5.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-6.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-7.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/kernels-reduction-1.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-loop-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-loop-1.h: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/parallel-loop-2.h: Likewise.
	* testsuite/libgomp.oacc-fortran/cublas-fixed.h: Likewise.
	* testsuite/libgomp.oacc-fortran/dummy-array.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/host_data-2.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/host_data-3.f: Likewise.
	* testsuite/libgomp.oacc-fortran/host_data-4.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-acc-loop-reduction-2.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-acc-loop-reduction.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-collapse-3.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-collapse-4.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-independent.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-loop-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-map-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-parallel-loop-data-enter-exit.f95:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-1.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-2.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-3.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-6.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-vector-1.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-vector-2.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-1.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-2.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-3.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-4.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-5.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-6.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-7.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/kernels-reduction-1.f90:
	Likewise.
	* testsuite/libgomp.oacc-fortran/lib-12.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/lib-13.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/lib-14.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/lib-15.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/parallel-loop-1.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/reference-reductions.f90: Likewise.
	* testsuite/libgomp.oacc-fortran/vector-routine.f90: Likewise.

Co-Authored-By: James Norris <jnorris@codesourcery.com>
Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>

From-SVN: r261884

From-SVN: r261883

2018-06-22  Martin Liska  <mliska@suse.cz>

	* symbol-summary.h (get): Make it pure and inline move
        functionality from ::get function.
        (get): Remove and inline into ::get and ::get_create.
        (get_create): Move code from ::get function.

From-SVN: r261882

	PR target/85994
	* config/i386/sol2.h (CPP_SPEC): Don't pass -P for
	-x assembler-with-cpp.

From-SVN: r261880

	* config/sol2.h (TARGET_OS_CPP_BUILTINS): Define
	_FILE_OFFSET_BITS=64 for C++.

From-SVN: r261879

Fix this ChangeLog entry.

From-SVN: r261878

From-SVN: r261877

The explicit instantiation declarations for std::basic_string are
disabled for C++17 (and later) so that basic_string symbols get
implicitly instantiated in every translation unit that needs them.  On
targets that don't support STB_GNU_UNIQUE this leads to multiple copies
of the empty rep symbol for COW strings. In order to detect whether a
COW string needs to deallocate its storage it compares the address with
the empty rep.  When there are multiple copies of the empty rep object
the address is not unique, and so string destructors try to delete the
empty rep, which crashes.

In order to guarantee uniqueness of the _S_empty_rep_storage symbol this
patch adds an explicit instantiation declaration for just that symbol.
This means the other symbols are still implicitly instantiated in C++17
code, but for the empty rep the definition in the library gets used.

Separately, there is no need for C++17 code to implicitly instantiate
the I/O functions for strings, so this also restores the explicit
instantiation declarations for those functions.

	PR libstdc++/86138
	* include/bits/basic_string.tcc:
	[__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
	(basic_string<char>::_Rep::_S_empty_rep_storage)
	(basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
	instantiation declarations.
	[__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
	explicit instantiation declarations.
	* testsuite/21_strings/basic_string/cons/char/86138.cc: New.
	* testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.

From-SVN: r261873