It's never used.


	* config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete
	VECTOR_OTHER.
	* config/rs6000/rs6000.c (rs6000_debug_vector_unit): Delete
	case VECTOR_OTHER.

From-SVN: r264444

2018-09-20  Christophe Lyon  <christophe.lyon@linaro.org>

	* testsuite/26_numerics/headers/cmath/hypot-long-double.cc: Skip
	on arm*.

From-SVN: r264443

My patch of 2016-08-26 to avoid calling a trivial default constructor
introduced TARGET_EXPRs initialized with void_node to express trivial
initialization.  But when this shows up in a VEC_INIT_EXPR, we weren't
prepared to handle it.  Fixed by handling it explicitly in
cxx_eval_vec_init_1.

	* constexpr.c (cxx_eval_vec_init_1): Handle trivial initialization.

From-SVN: r264442

From-SVN: r264441

PEELING_FOR_GAPS now means "peel one iteration for the epilogue",
in much the same way that PEELING_FOR_ALIGNMENT > 0 means
"peel that number of iterations for the prologue".  We weren't
taking this into account when deciding whether we needed to peel
further scalar iterations beyond the iterations for "gaps" and
"alignment".

Only the first test failed before the patch.  The other two
are just for completeness.

2018-09-20  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	PR tree-optimization/87288
	* tree-vect-loop.c (vect_analyze_loop_2): Take PEELING_FOR_GAPS
	into account when determining PEELING_FOR_NITERS.

gcc/testsuite/
	PR tree-optimization/87288
	* gcc.dg/vect/pr87288-1.c: New test.
	* gcc.dg/vect/pr87288-2.c: Likewise,
	* gcc.dg/vect/pr87288-3.c: Likewise.

From-SVN: r264440

Epilogue loop vectorisation skips vect_enhance_data_refs_alignment
since it doesn't make sense to version or peel the epilogue loop
(that will already have happened for the main loop).  But this means
that it also fails to check whether the accesses are suitably aligned
for the new vector subarch.

We don't seem to carry alignment information from the (potentially
peeled or versioned) main loop to the epilogue loop, which would be
good to fix at some point.  I think we want this patch regardless,
since there's no guarantee that the alignment requirements are the
same for every subarch.

2018-09-20  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	PR tree-optimization/86877
	* tree-vect-loop.c (vect_analyze_loop_2): Call
	vect_verify_datarefs_alignment.

gcc/testsuite/
	PR tree-optimization/86877
	* gfortran.dg/vect/vect-8-epilogue.F90: New test.

From-SVN: r264439

	* c.opt (Wclass-conversion): New.

	* decl.c (grok_op_properties): Change a warning from -Wconversion to
	-Wclass-conversion.  Make it print the types.

	* doc/invoke.texi: Document -Wclass-conversion.

	* g++.dg/conversion/op4.C: Add dg-warning.
	* g++.dg/warn/Wclass-conversion1.C: New test.
	* g++.dg/warn/Wclass-conversion2.C: New test.
	* g++.dg/warn/Wconversion5.C: Remove file.
	* g++.dg/warn/conversion-function-1.C: Use -Wno-class-converison.
	* g++.old-deja/g++.bugs/900215_01.C: Adjust dg-warning.
	* g++.old-deja/g++.jason/conversion5.C: Likewise.

From-SVN: r264438

	* config/pa/pa.c (pa_adjust_priority): Delete.
	(TARGET_SCHED_ADJUST_PRIORITY): Delete define.

From-SVN: r264437

	* config/pa/pa.md (atomic_storeqi): Restore deleted expander.
	(atomic_storehi): Likewise.
	(atomic_storesi): Likewise.
	(atomic_loaddi): Restore compare and swap exchange loop code.

From-SVN: r264433

From-SVN: r264432

/cp
2018-09-19  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/87324
	* parser.c (cp_parser_initializer_list): Assign error_mark_node
	to the index upon error.

/testsuite
2018-09-19  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/87324
	* g++.dg/cpp0x/desig5.C: New.

From-SVN: r264428

2018-09-19  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84109
	* trans-expr.c (gfc_trans_assignment_1): The rse.pre for the
	assignment of deferred character intrinsic elemental function
	results to a realocatable lhs must not be added to the exterior
	block if they are array valued but must go to the loop body.

2018-09-19  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/84109
	* gfortran.dg/elemental_function_3.f90 : New test.

From-SVN: r264427

This code in try_combine uses the wrong mode.  This fails (with RTL
checking) in trunk, but not in any released branches.


	PR rtl-optimization/86902
	* combine.c (try_combine): When changing the CC mode used, don't change
	an unrelated mode in other_insn to that new CC mode.

From-SVN: r264426

	PR c++/87357 - missing -Wconversion warning
	* decl.c (grok_op_properties): Remove diagnostic parts mentioning
	a conversion to a reference to void.  Use
	same_type_ignoring_top_level_qualifiers_p rather than comparing types
	directly.

	* g++.dg/warn/Wconversion5.C: New test.

From-SVN: r264425

As promised at Cauldron, this patch uses %T and %G with dump_printf and
dump_printf_loc calls to eliminate calls to

  dump_generic_expr (MSG_*, arg, TDF_SLIM)  (via %T)

and

  dump_gimple_stmt (MSG_*, TDF_SLIM, stmt, 0)  (via %G)

throughout the middle-end, simplifying numerous dump callsites.

A few calls to these functions didn't match the above pattern; I didn't
touch these.  I wasn't able to use %E anywhere.

gcc/ChangeLog:
	* tree-data-ref.c (runtime_alias_check_p): Use formatted printing
	with %T in place of calls to dump_generic_expr.
	(prune_runtime_alias_test_list): Likewise.
	(create_runtime_alias_checks): Likewise.
	* tree-vect-data-refs.c (vect_check_nonzero_value): Likewise.
	(vect_analyze_data_ref_dependence): Likewise.
	(vect_slp_analyze_data_ref_dependence): Likewise.
	(vect_record_base_alignment): Likewise.  Use %G in place of call
	to dump_gimple_stmt.
	(vect_compute_data_ref_alignment): Likewise.
	(verify_data_ref_alignment): Likewise.
	(vect_find_same_alignment_drs): Likewise.
	(vect_analyze_group_access_1): Likewise.
	(vect_analyze_data_ref_accesses): Likewise.
	(dependence_distance_ge_vf): Likewise.
	(dump_lower_bound): Likewise.
	(vect_prune_runtime_alias_test_list): Likewise.
	(vect_find_stmt_data_reference): Likewise.
	(vect_analyze_data_refs): Likewise.
	(vect_create_addr_base_for_vector_ref): Likewise.
	(vect_create_data_ref_ptr): Likewise.
	* tree-vect-loop-manip.c (vect_set_loop_condition): Likewise.
	(vect_can_advance_ivs_p): Likewise.
	(vect_update_ivs_after_vectorizer): Likewise.
	(vect_gen_prolog_loop_niters): Likewise.
	(vect_prepare_for_masked_peels): Likewise.
	* tree-vect-loop.c (vect_determine_vf_for_stmt): Likewise.
	(vect_determine_vectorization_factor): Likewise.
	(vect_is_simple_iv_evolution): Likewise.
	(vect_analyze_scalar_cycles_1): Likewise.
	(vect_analyze_loop_operations): Likewise.
	(report_vect_op): Likewise.
	(vect_is_slp_reduction): Likewise.
	(check_reduction_path): Likewise.
	(vect_is_simple_reduction): Likewise.
	(vect_create_epilog_for_reduction): Likewise.
	(vect_finalize_reduction:): Likewise.
	(vectorizable_induction): Likewise.
	(vect_transform_loop_stmt): Likewise.
	(vect_transform_loop): Likewise.
	(optimize_mask_stores): Likewise.
	* tree-vect-patterns.c (vect_pattern_detected): Likewise.
	(vect_split_statement): Likewise.
	(vect_recog_over_widening_pattern): Likewise.
	(vect_recog_average_pattern): Likewise.
	(vect_determine_min_output_precision_1): Likewise.
	(vect_determine_precisions_from_range): Likewise.
	(vect_determine_precisions_from_users): Likewise.
	(vect_mark_pattern_stmts): Likewise.
	(vect_pattern_recog_1): Likewise.
	* tree-vect-slp.c (vect_get_and_check_slp_defs): Likewise.
	(vect_record_max_nunits): Likewise.
	(vect_build_slp_tree_1): Likewise.
	(vect_build_slp_tree_2): Likewise.
	(vect_print_slp_tree): Likewise.
	(vect_analyze_slp_instance): Likewise.
	(vect_detect_hybrid_slp_stmts): Likewise.
	(vect_detect_hybrid_slp_1): Likewise.
	(vect_slp_analyze_operations): Likewise.
	(vect_slp_analyze_bb_1): Likewise.
	(vect_transform_slp_perm_load): Likewise.
	(vect_schedule_slp_instance): Likewise.
	* tree-vect-stmts.c (vect_mark_relevant): Likewise.
	(vect_mark_stmts_to_be_vectorized): Likewise.
	(vect_init_vector_1): Likewise.
	(vect_get_vec_def_for_operand): Likewise.
	(vect_finish_stmt_generation_1): Likewise.
	(vect_check_load_store_mask): Likewise.
	(vectorizable_call): Likewise.
	(vectorizable_conversion): Likewise.
	(vectorizable_operation): Likewise.
	(vectorizable_load): Likewise.
	(vect_analyze_stmt): Likewise.
	(vect_is_simple_use): Likewise.
	(vect_get_vector_types_for_stmt): Likewise.
	(vect_get_mask_type_for_stmt): Likewise.
	* tree-vectorizer.c (increase_alignment): Likewise.

From-SVN: r264424

The vec_select operator is documented to require a const_int for the lane
selector operand, but GCN has an instruction that can select the lane at
runtime, so it seems reasonable to remove this restriction.

This patch simply replaces assertions that the operand is constant with early
exits from the optimizers.  I think it's reasonable that vec_select with a
non-constant operand cannot be optimized, yet.

Also included is the necessary documentation tweak.

2018-09-19  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* doc/rtl.texi: Adjust vec_select description.
	* simplify-rtx.c (simplify_binary_operation_1): Allow VEC_SELECT to use
	non-constant selectors.

From-SVN: r264423

Assertions should be used to check preconditions that users must meet,
not to check whether the implementation is correct.

	* include/bits/regex_automaton.tcc (_StateSeq<_TraitsT>::_M_clone()):
	Remove __glibcxx_assert statements and use map::find instead of
	map::operator[].

From-SVN: r264422

Use the STLUR instruction introduced in Armv8.4-a.
This instruction has the store-release semantic like STLR but can take a
9-bit unscaled signed immediate offset.

Example test case:
```
void
foo ()
{
    int32_t *atomic_vals = calloc (4, sizeof (int32_t));
    atomic_store_explicit (atomic_vals + 1, 2, memory_order_release);
}
```

Before patch generates
```
foo:
	stp	x29, x30, [sp, -16]!
	mov	x1, 4
	mov	x0, x1
	mov	x29, sp
	bl	calloc
	mov	w1, 2
	add	x0, x0, 4
	stlr	w1, [x0]
	ldp	x29, x30, [sp], 16
	ret
```

After patch generates
```
foo:
	stp	x29, x30, [sp, -16]!
	mov	x1, 4
	mov	x0, x1
	mov	x29, sp
	bl	calloc
	mov	w1, 2
	stlur	w1, [x0, 4]
	ldp	x29, x30, [sp], 16
	ret
```

We introduce a new feature flag to indicate the presence of this instruction.
The feature flag is called AARCH64_ISA_RCPC8_4 and is included when targeting
armv8.4 architecture.

We also introduce an "arch" attribute to be checked called "rcpc8_4" after this
feature flag.

gcc/

2018-09-19  Matthew Malcomson  <matthew.malcomson@arm.com>

	* config/aarch64/aarch64-protos.h
	(aarch64_offset_9bit_signed_unscaled_p): New declaration.
	* config/aarch64/aarch64.md (arches): New "rcpc8_4" attribute value.
	(arch_enabled): Add check for "rcpc8_4" attribute value of "arch".
	* config/aarch64/aarch64.h (AARCH64_FL_RCPC8_4): New bitfield.
	(AARCH64_FL_FOR_ARCH8_4): Include AARCH64_FL_RCPC8_4.
	(AARCH64_FL_PROFILE): Move index so flags are ordered.
	(AARCH64_ISA_RCPC8_4): New flag.
	* config/aarch64/aarch64.c (offset_9bit_signed_unscaled_p): Renamed
	to aarch64_offset_9bit_signed_unscaled_p.
	* config/aarch64/atomics.md (atomic_store<mode>): Allow offset
	and use stlur.
	* config/aarch64/constraints.md (Ust): New constraint.
	* config/aarch64/predicates.md.
	(aarch64_9bit_offset_memory_operand): New predicate.
	(aarch64_rcpc_memory_operand): New predicate.

gcc/testsuite/

2018-09-19  Matthew Malcomson  <matthew.malcomson@arm.com>

	* gcc.target/aarch64/atomic-store.c: New.

From-SVN: r264421

	PR rtl-optimization/87361
	* rtlanal.c (nonzero_bits1): Revert accidental change.

From-SVN: r264420

re PR tree-optimization/87349 (ICE: Segmentation fault (in useless_type_conversion_p or is_gimple_reg_type))

2018-09-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87349
	PR tree-optimization/87342
	* tree-ssa-sccvn.c (do_rpo_vn): Iterate max_rpo computation.

	* gcc.dg/torture/pr87349-1.c: New testcase.
	* gcc.dg/torture/pr87349-2.c: Likewise.
	* gcc.dg/torture/pr87342.c: Likewise.

From-SVN: r264419

	* libgnuintl.h (_INTL_MAY_RETURN_STRING_ARG, gettext, dgettext,
	dcgettext, ngettext, dngettext, dcngettext): Backport changes
	from upstream gettext.

From-SVN: r264418

From-SVN: r264417

2018-09-18  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/87135
	* src/c++11/hashtable_c++0x.cc:
	(_Prime_rehash_policy::_M_next_bkt): Return a prime no smaller than
	requested size, but not necessarily greater.
	(_Prime_rehash_policy::_M_need_rehash): Rehash only if target size is
	strictly greater than next resize threshold.
	* testsuite/23_containers/unordered_map/modifiers/reserve.cc: Adapt test
	to validate that there is no rehash as long as number of insertion is
	lower or equal to the reserved number of elements.

From-SVN: r264413

2018-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/29550
	* gfortran.h (gfc_expr): Add external_blas flag.
	* frontend-passes.c (matrix_case): Add case A2TB2T.
	(optimize_namespace): Handle flag_external_blas by
	calling call_external_blas.
	(get_array_inq_function): Add argument okind. If
	it is nonzero, use it as the kind of argument
	to be used.
	(inline_limit_check): Remove m_case argument, add
	limit argument instead.  Remove assert about m_case.
	Set the limit for inlining from the limit argument.
	(matmul_lhs_realloc): Handle case A2TB2T.
	(inline_matmul_assign): Handle inline limit for other cases with
	two rank-two matrices.  Remove no-op calls to inline_limit_check.
	(call_external_blas): New function.
	* trans-intrinsic.c (gfc_conv_intrinsic_funcall): Do not add
	argument to external BLAS if external_blas is already set.

2018-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/29550
	* gfortran.dg/inline_matmul_13.f90: Adjust count for
	_gfortran_matmul.
	* gfortran.dg/inline_matmul_16.f90: Likewise.
	* gfortran.dg/promotion_2.f90: Add -fblas-matmul-limit=1.  Scan
	for dgemm instead of dgemm_.  Add call to random_number to make
	standard conforming.
	* gfortran.dg/matmul_blas_1.f90: New test.
	* gfortran.dg/matmul_bounds_14.f: New test.
	* gfortran.dg/matmul_bounds_15.f: New test.
	* gfortran.dg/matmul_bounds_16.f: New test.
	* gfortran.dg/blas_gemm_routines.f: New test / additional file for
	preceding tests.

From-SVN: r264412

2018-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/29550
	* gfortran.h (gfc_expr): Add external_blas flag.
	* frontend-passes.c (matrix_case): Add case A2TB2T.
	(optimize_namespace): Handle flag_external_blas by
	calling call_external_blas.
	(get_array_inq_function): Add argument okind. If
	it is nonzero, use it as the kind of argument
	to be used.
	(inline_limit_check): Remove m_case argument, add
	limit argument instead.  Remove assert about m_case.
	Set the limit for inlining from the limit argument.
	(matmul_lhs_realloc): Handle case A2TB2T.
	(inline_matmul_assign): Handle inline limit for other cases with
	two rank-two matrices.  Remove no-op calls to inline_limit_check.
	(call_external_blas): New function.
	* trans-intrinsic.c (gfc_conv_intrinsic_funcall): Do not add
	argument to external BLAS if external_blas is already set.

2018-09-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/29550
	* gfortran.dg/inline_matmul_13.f90: Adjust count for
	_gfortran_matmul.
	* gfortran.dg/inline_matmul_16.f90: Likewise.
	* gfortran.dg/promotion_2.f90: Add -fblas-matmul-limit=1.  Scan
	for dgemm instead of dgemm_.  Add call to random_number to make
	standard conforming.
	* gfortran.dg/matmul_blas_1.f90: New test.
	* gfortran.dg/matmul_bounds_14.f: New test.
	* gfortran.dg/matmul_bounds_15.f: New test.
	* gfortran.dg/matmul_bounds_16.f: New test.
	* gfortran.dg/blas_gemm_routines.f: New test / additional file for
	preceding tests.

From-SVN: r264411

2018-09-18  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87239
	* trans-expr.c (gfc_trans_assignment_1): The rse.pre for the
	assignment of deferred character elemental function results to
	a realocatable lhs must not be added to the exterior block but
	must go to the loop body.

2018-09-18  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87239
	* gfortran.dg/elemental_function_2.f90 : New test.

From-SVN: r264409

	P1064R0 - Allowing Virtual Function Calls in Constant Expressions
	* call.c (build_over_call): No longer check if we're outside a template
	function.
	* class.c (build_vtbl_initializer): Build vtable's constructor with
	indexes.
	* constexpr.c (cxx_eval_constant_expression): Don't ignore _vptr's
	initializer.  Handle OBJ_TYPE_REF.
	(potential_constant_expression_1): Handle OBJ_TYPE_REF.
	* decl.c (maybe_commonize_var): Bail out for any DECL_ARTIFICIAL.
	(initialize_artificial_var): Mark the variable as constexpr.
	(grokdeclarator): Change error to pedwarn.  Only warn when
	pedantic and not C++2a.

	* gimple-fold.c (gimple_get_virt_method_for_vtable): Adjust assert.

	* g++.dg/cpp0x/constexpr-virtual5.C: Adjust dg-error.
	* g++.dg/cpp2a/constexpr-virtual1.C: New test.
	* g++.dg/cpp2a/constexpr-virtual2.C: New test.
	* g++.dg/cpp2a/constexpr-virtual3.C: New test.
	* g++.dg/cpp2a/constexpr-virtual4.C: New test.
	* g++.dg/cpp2a/constexpr-virtual5.C: New test.
	* g++.dg/cpp2a/constexpr-virtual6.C: New test.
	* g++.dg/cpp2a/constexpr-virtual7.C: New test.
	* g++.dg/cpp2a/constexpr-virtual8.C: New test.
	* g++.dg/cpp2a/constexpr-virtual9.C: New test.
	* g++.dg/diagnostic/virtual-constexpr.C: Skip for C++2a.  Use
	-pedantic-errors.  Adjust dg-error.

From-SVN: r264408

2018-09-18  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87336
	* trans-array.c (gfc_get_array_span): Try to get the element
	length of incomplete types. Return NULL_TREE otherwise.
	(gfc_conv_expr_descriptor): Only set the 'span' field if the
	above does not return NULL_TREE. Set 'span' field if possible
	for all new descriptors.

2018-09-18  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87336
	* gfortran.dg/pointer_array_10.f90 : New test.
	* gfortran.dg/assign_10.f90 : Increase 'parm' count to 20.
	* gfortran.dg/transpose_optimization_2.f90 : Increase 'parm'
	count to 72.

From-SVN: r264405

This comment is quite cryptic and very out-of-date by now.  Committing.


	* config/rs6000/rs6000.md: Remove old "Cygnus sibcall" comment.

From-SVN: r264403

/cp
2018-09-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85065
	* cp-tree.h (NON_ERROR): New.
	* pt.c (auto_hash::hash): Use it.
	(do_auto_deduction): Likewise.

/testsuite
2018-09-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85065
	* g++.dg/concepts/pr85065.C: New.

From-SVN: r264402

Combine will put CLOBBER (with a non-void mode) anywhere in a pattern
to poison it.  reg_overlap_mentioned_p did not handle this.  This patch
fixes that.


	PR rtl-optimization/86882
	* rtlanal.c (reg_overlap_mentioned_p): Handle CLOBBER.

From-SVN: r264400

The deleter only needs to be invocable when the unique_ptr destructor
and reset member function are instantiated. In other contexts it might
not be possible to pass unique_ptr<T, D>::pointer to the deleter, if
that requires a derived-to-base conversion from T* and T is incomplete.

	* include/bits/unique_ptr.h (__uniq_ptr_impl): Remove static assertion
	checking invocable condition.
	(unique_ptr::~unique_ptr, unique_ptr::reset): Restore static assertion
	here, where types must be complete. Pass pointer to deleter as an
	rvalue.
	* testsuite/20_util/unique_ptr/requirements/incomplete.cc: New test.

From-SVN: r264399

i386.md (*<code>extend<mode>xf2): Macroize insn from *<code>extendsfxf2 and *<code>extenddfxf2 using MODEF mode...

	* config/i386/i386.md (*<code>extend<mode>xf2): Macroize insn from
	*<code>extendsfxf2 and *<code>extenddfxf2 using MODEF mode iterator.

From-SVN: r264398

	libgomp/
	* plugin/plugin-nvptx.c (struct cuda_map): New.
	(struct ptx_stream): Replace d, h, h_begin, h_end, h_next, h_prev,
	h_tail with (cuda_map *) map.
	(cuda_map_create): New function.
	(cuda_map_destroy): New function.
	(map_init): Update to use a linked list of cuda_map objects.
	(map_fini): Likewise.
	(map_pop): Likewise.
	(map_push): Likewise.  Return CUdeviceptr instead of void.
	(init_streams_for_device): Remove stales references to ptx_stream
	members.
	(select_stream_for_async): Likewise.
	(nvptx_exec): Update call to map_init.

From-SVN: r264397

The changes to invoke.texi in r242433 left some unwanted spaces that
texi2pod.pl interprets as verbatim formatting. There are also some
grammatical errors due to the removal of references to GCJ, where the
G++ driver is referred to in the plural.

	PR other/87353
	* doc/invoke.texi (Link Options): Fix formatting and grammar.

From-SVN: r264395

From-SVN: r264394

From-SVN: r264393

This new test has some difficulties on the fabsl function.
On arm this is because we don't support the _Float128 type which the test uses.
This is handled in the patch by requiring a float128 target selector.

On aarch64-none-elf, a Newlib target, it fails because fabsl is not available.
long double support is known to be incomplete in newlib, and the fabsl function is not available
for targets where long double is larger than a double.
Therefore this patch skips the test on such targets.


	* gcc.dg/warn-abs-1.c: Require float128 target.
	Skip if large_long_double newlib target.

From-SVN: r264392

https://gcc.gnu.org/ml/gcc-patches/2018-09/msg00984.html
	PR c++/86881
	cp/
	* name-lookup.c (check_local_shadow): Ignore auto types.

	testsuite/
	* g++.dg/warn/pr86881.C: New.

From-SVN: r264391

These two tests started failing after commit r264335 that adjusted the cutoff point at which the diagnostic suggestions machinery decides a suggestion is meaningful.
For these tests it means we no longer suggest anything as an alternative to "armv8-a-typo" as an "arch=" pargma value. We do still list the valid options, we just don't prefer one particular value over the others.

When I first wrote this test it wasn't with a particular architecture suggestion in mind, but rather to test that the suggestion machinery is being sanely invoked.
So this patch changes the dg-message check to treat the "did you mean...?" hunk as optional (in case the heuristics in the suggestions machinery change again).

With this patch the two tests PASS again on aarch64. 

    * gcc.target/aarch64/spellcheck_1.c:
    Make architecture suggestion optional.
    * gcc.target/aarch64/spellcheck_4.c:
    Likewise.

From-SVN: r264390