gcc/testsuite/ChangeLog:

2018-06-27  Carl Love  <cel@us.ibm.com>

Add test case that was supposed to be added in commit 255556 on 2017-12-11.

	* gcc.target/vsx-vector-abss.c: New file to test vec_abss.

From-SVN: r262196

	* Makefile.in (install_leaf): Use enable_gcov instead of
	enable_libgcov.

From-SVN: r262195

2018-06-27  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_vector.h
	(struct _Vector_base<>::_Vector_impl_data): New.
	(struct _Vector_base<>::_Vector_impl): Inherit from latter.
	(_Vector_base<>::_Vector_impl::_M_swap_data): Move...
	(_Vector_base<>::_Vector_impl_data::_M_swap_data): ...here.
	(_Vector_base<>::_Vector_impl()): Add noexcept qualification.
	(_Vector_base<>::_Vector_impl(_Vector_impl&&)): New.
	(_Vector_base<>::_Vector_impl(_Tp_alloc_type&&, _Vector_impl&&)): New.
	(_Vector_base(const allocator_type&, _Vector_base&&)): New, use latter.
	(_Vector_base()): Default.
	(_Vector_base(_Vector_base&&)): Default.
	(_Vector_base(size_t)) [_GLIBCXX_INLINE_VERSION]: Delete.
	(_Vector_base(_Tp_alloc_type&&)) [_GLIBCXX_INLINE_VERSION]: Delete.
	(_Vector_base::_M_create_storage(size_t)): Make protected.
	(vector()): Default.
	(vector(vector&&)): Default.
	(vector(vector&&, const allocator_type&, true_type)): New.
	(vector(vector&&, const allocator_type&, false_type)): New.
	(vector(vector&&, const allocator_type&)): Use latters.
	(vector(_InputIte, _InputIte, const allocator_type&)): Call
	_M_range_initialize directly.
	* include/debug/vector
	(vector(vector&&, const allocator_type&)): Add noexcept qualification.
	* testsuite/23_containers/vector/allocator/default_init.cc: New.
	* testsuite/23_containers/vector/cons/noexcept_move_construct.cc: Add
	static assertions.

From-SVN: r262194

	* config/v850/v850.md (addsi3_set_flags): New pattern.
	(subsi3_set_flags, negsi2_set_flags, andsi3_set_flags): Likewise.
	(iorsi3_set_flags, xorsi3_set_flags, one_cmplsi2_set_flags): Likewise.
	(zero_extendhisi2_v850_set_flags): Likewise.
	(zero_extendqisi2_v850_set_flags): Likewise.
	(ashlsi3_set_flags, ashlsi3_v850e2_set_flags): Likewise.
	(lshrsi3_set_flags, lshrsi3_v850e2_set_flags): Likewise.
	(ashrsi3_set_flags, ashrsi3_v850e2_set_flags): Likewise.

Co-Authored-By: Austin Law <austinklaw@gmail.com>

From-SVN: r262192

	* config/v850/v850-protos.h (notice_update_cc): Remove.
	* config/v850/v850.c (v850_compare_op0, v850_compare_op1): Remove.
	(v850_print_operand): Handle 'D' and "d".
	(v850_select_cc_mode): Remove ATTRIBUTE_UNUSED for last argument.
	Add handling of arithmetic/logical operations compared against zero.
	(v850_gen_float_compare): Remove ATTRIBUTE_UNUSED for last argument.
	Do not look at v850_compare_op, instead get mode from last argument.
	(v850_gen_compare): Remove
	(increment_stack): Use addsi3_clobber_flags to avoid splitting failure
	after reload for prologue insns.
	(expand_prologue): Account for CLOBBER of CC_REGNUM in various
	patterns.
	(construct_save_jarl): Likewise.
	(TARGET_FLAGS_REGNUM): Define.
	* config/v850/v850.h (v850_compare_op0, v850_compare_op1): Remove.
	(NOTICE_UPDATE_CC): Remove.
	* config/v850/v850.md (v850_tst1): Use (reg:CCZ CC_REGNUM) rather
	than cc0.  Conditionalize on reload_completed.
	(cmpsi_insn, setfcc_insn): Likewise.
	(tst1 splitter): Turn into define_and_split which sets the flags
	after reload.
	(cstoresi4, cbranchsf4, cbranchdf4, cbranchsi4_insn): Likewise.
	(cbranchsi4, branch_normal, branch_invert): Do not expose cc0 here.
	(cstoresf4, cstoredf4): Clobber the flags.
	(cmpsi, cmpsf, cmpdf): Remove expanders.
	(setf_insn): Remove pattern.
	(addsi3): Turn into define_and_split which clobbers the flags after
	reload and a suitable pattern (addsi3_clobber_flags) for use after
	reload.
	(subsi3, negsi2, andsi3, iorsi3, xorsi3, one_cmplsi2) Likewise.
	(ashlsi3, ashlsi3_v850e2, lshrsi3, lsh4si3_v850e2): Likewise.
	(ashrsi3, ashrsi3_v850e2): Likewise.
	(bins): Clobber the flags.
	(movsicc_normal_cc, movsicc_normal, movsicc_tst1): Likewise.
	(movsicc_tst1_revesed, sasf, swap and rotate patterns): Likewise.
	(fix_loop_counter, call_internal_short, call_internal_long): Likewise.
	(call_value_internal_short, call_value_internal_long): Likewise.
	(callt_save_interrupt, callt_return_interrupt): Likewise.
	(save_interrupt, return_interrupt): Likewise.
	(callt_save_all_interrupt, save_all_interrupt): Likewise.
	(_save_all_interrupt, callt_restore_all_interrupt): Likewise.
	(restore_all_interrupt, _restore_all_interrupt): Likewise.
	(All FP comparisons): Only allow after reload has completed.
	(trfsr): Likewise.
	(divh, divhu): Tweak output template.
	(branch_z_normal, branch_z_invert): Remove
	(branch_nz_normal, branch_nz_invert): Likewise.
	(extendhisi_insn, extendqisi_insn): Do not clobber flags.

Co-Authored-By: Austin Law <austinklaw@gmail.com>

From-SVN: r262190

	* config/v850/v850-modes.def (CCZ, CCNZ): Add new modes.
	* config/v850/v850.c (notice_update_cc): Remove.
	* config/v850/v850.h  (CC_OVERFLOW_UNUSABLE): Remove
	(CC_NO_CARRY): Likewise.
	(NOTICE_UPDATE_CC): Define to nothing.
	* config/v850/v850.md: Remove block comment on cc0 handling
	Remove "cc" attribute from all patterns.  Remove cc_status handling
	from all patterns.  Minor formatting fixes.

Co-Authored-By: Austin Law <austinklaw@gmail.com>

From-SVN: r262189

	* name-lookup.c (do_pushtag): If we skip a class level, also skip
	its template level.

From-SVN: r262188

The Cortex-A76 is an Armv8.2-A processor with dotproduct and FP16 support.
It can be paired with the Cortex-A55 and hence the option
-mcpu/-mtune=cortex-a76.cortex-a55 is also introduced.

Bootstrapped and tested on aarch64-none-linux-gnu. 

	* config/aarch64/aarch64-cores.def (cortex-a76): New entry.
	(cortex-a76.cortex-a55): Likewise.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* doc/invoke.texi (AArch64 Options): Document cortex-a76 and
	cortex-a76.cortex-a55.

From-SVN: r262186

	* config/v850/t-v850 (MULTILIB_OPTIONS): Remove 8byte-align.
	(MULTILIB_DIRNAMES): Similarly.

From-SVN: r262185

	* include/bits/cpp_type_traits.h [__cplusplus >= 201703]
	(__is_byte<byte>): Define specialization for std::byte.

From-SVN: r262182

	* gimple.h (gimple_return_retbnd): Delete.
	(gimple_return_set_retbnd): Likewise.
	* cgraphunit.c (cgraph_node::expand_thunk): Remove call to
	gimple_return_set_retbnd.
	* gimple-pretty-print.c (dump_gimple_return): Remove call to
	gimple_return_retbnd and adjust.
	* tree-inline.h (struct copy_body_data): Remove retbnd field.
	* tree-inline.c (remap_gimple_stmt): Remove handling of retbnd.
	Explicitly return NULL in a couple more cases.  Move assertion
	on debug statements and remove unreachable code.
	(reset_debug_binding): Do not test id->retbnd.
	(expand_call_inline): Do not set it.

From-SVN: r262181

For some targets (in my case VxWorks 5.5), libgcov does not compile due
to missing functions and macros such as getpid() and F_OK.

Incidentally, gcc/Makefile.in already contains comments such as

# Install gcov if it was compiled.

but there is no logic in place to actually allow gcov to not be
compiled.

So add an option for disabling build and install of libgcov and the
related host tools.

From-SVN: r262180

The Cortex-A76 is an Armv8.2-A processor with dotproduct and FP16 support.
It can be paired with the Cortex-A55 and hence the option
-mcpu/-mtune=cortex-a76.cortex-a55 is also introduced.

Bootstrapped and tested on arm-none-linux-gnueabihf.

	* config/arm/arm-cpus.in (cortex-a76): New entry.
	(cortex-a76.cortex-a55): Likewise.
	* config/arm/arm-tables.opt: Regenerate.
	* config/arm/arm-tune.md: Likewise.
	* config/arm/driver-arm.c (arm_cpu_table): Add Cortex-A76 entry.
	* doc/invoke.texi (ARM Options): Document cortex-a76 and
	cortex-a76.cortex-a55.

From-SVN: r262179

This fixes a regression where we don't have an instruction for pre Armv8.2-a
to do a move of an fp16 value from a GP reg to a SIMD reg.

This patch adds that pattern to movhf_aarch64 using a dup and only selectes it
using a very low priority.

This fixes an ICE at -O0.

gcc/
2018-06-20  Tamar Christina  <tamar.christina@arm.com>

	PR target/85769
	* config/aarch64/aarch64.md (*movhf_aarch64): Add dup v0.4h pattern.

gcc/testsuite/
2018-06-20  Tamar Christina  <tamar.christina@arm.com>

	PR target/85769
	* gcc.target/aarch64/f16_mov_immediate_3.c: New.

From-SVN: r262178

When adding the vxworks_iolib_include_unistd hack I failed to add the
appropriate hunk to the tests/base/ioLib.h file, causing "make
check-fixincludes" to fail.

From-SVN: r262177

r217431 changed X30 as caller-saved in CALL_USE_REGISTERS because of
which this comment about X30 not being marked as call-clobbered is no
longer accurate.  Fixed to describe the current state more accurately.

	* config/aarch64/aarch64.h (CALL_USE_REGISTERS): Fix obsolete
	comment.
	(EPILOGUE_USES): Likewise.

From-SVN: r262176

	* typeck2.c (process_init_constructor_array): Only compute a
	constant initializer once.

In this PR, we have a large std::array of pairs.  Since the C array is
wrapped in a class we don't go to build_vec_init, so we end up with
digest_init wanting to build up the element initializer for each element of
the array.

In the more general case, like 80272, we have a data structure problem: we
don't currently have a good way of expressing the same dynamic
initialization of many elements within a CONSTRUCTOR.  RANGE_EXPR probably
ought to work, but will need more work at genericize or gimplify time.

But in this case, the initialization for each element reduces to constant
0, so we don't even need to add anything to the CONSTRUCTOR.  We just need
to realize that if the initializer for one element is 0, the others will be
as well, and we don't need to iterate over the whole array.

For the trunk, I also use a RANGE_EXPR to handle constant initialization by
a value other than 0.

void foo ()
{
  std::array<std::pair<int, int>, 1024 * 1024> arr {};
}

From-SVN: r262173

	* pt.c (fn_type_unification): Add convs parameter.
	(check_non_deducible_conversion): Remember conversion.
	(check_non_deducible_conversions): New.  Do checks here.
	(type_unification_real): Not here.  Remove flags parm.
	* call.c (add_function_candidate): Make convs a parameter.
	Don't recalculate the conversion if it's already set.
	(add_template_candidate_real): Allocate convs here.
	(good_conversion, conv_flags): New.

When the std::pair constructors got more complex to handle, it aggravated a
preexisting algorithmic problem in template overload resolution:

As part of template argument deduction in a call, once we've deduced all
the template arguments we can but before we substitute them to form an
actual declaration, for any function parameters that don't involve template
parameters we need to check that it's possible to convert the argument to
the parameter type (wg21.link/cwg1391).

As a result, we end up calculating the conversion twice: once here, and
then again in add_function_candidate as part of normal overload resolution.
Normally this isn't a big deal, but when the argument is a multiply-nested
initializer list, doubling the conversion processing at each level leads to
combinatorial explosion.

The patch for trunk avoids the duplication by remembering the conversion we
calculate at deduction time and then reusing it in overload resolution
rather than calculating it again.

From-SVN: r262172

From-SVN: r262171

The empty reps and the I/O functions do not need to be implicitly
instantiated to enable assertions, so declare the explicit
instantiations when _GLIBCXX_EXTERN_TEMPLATE == -1 (i.e. when
_GLIBCXX_ASSERTIONS is defined).

	PR libstdc++/86138
	* include/bits/basic_string.tcc: [_GLIBCXX_EXTERN_TEMPLATE < 0]
	Declare explicit instantiations of COW empty reps and I/O functions.

From-SVN: r262167

	* common/config/v850/v850-common.c (TARGET_DEFAULT_TARGET_FLAGS): Turn
	on -mbig-switch by default.

From-SVN: r262166

	* tree-inline.c (remap_location): New function extracted from...
	(copy_edges_for_bb): Add ID parameter.  Remap goto_locus.
	(copy_phis_for_bb): ...here.  Call remap_location.
	(copy_cfg_body): Adjust call to copy_edges_for_bb.

From-SVN: r262165

        * testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
        directives.
        * testsuite/experimental/algorithm/shuffle.cc: Likewise.

From-SVN: r262163

gcc/testsuite/ChangeLog:

2018-06-26  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* gcc.target/powerpc/builtins-1.c: Correct a comment.

From-SVN: r262162

2018-06-26  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000-string.c (expand_block_clear): Don't use
	unaligned vsx for 16B memset.

From-SVN: r262158

	PR target/86285
	* config/rs6000/rs6000.c (rs6000_init_builtins): Do not set
	ieee128_float_type_node to long_double_type_node unless
	TARGET_LONG_DOUBLE_128 is set.

From-SVN: r262156

[testsuite]

2018-06-12  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* gcc.target/powerpc/fold-vec-neg-int.p8.c: Specify powerpc_p8vector_ok
	requirement for this test.
	* gcc.target/powerpc/fold-vec-neg-int.c: Specify powerpc_p8vector_ok
	requirement, and -mpower8-vector compile option.

From-SVN: r262153

We shouldn't init __ieee128 to be the same as long double if the
latter is not even a 128-bit type.

This also reorders the nearby __ibm128 code so both types use similar
logic.


	PR target/82625
	* config/rs6000/rs6000.c (rs6000_init_builtins): Do not set
	ieee128_float_type_node to long_double_type_node unless
	TARGET_LONG_DOUBLE_128 is set.

From-SVN: r262152

gcc/ChangeLog:
	* cfgloop.c (get_loop_location): Convert return type from
	location_t to dump_user_location_t, replacing INSN_LOCATION lookups
	by implicit construction from rtx_insn *, and using
	dump_user_location_t::from_function_decl for the fallback case.
	* cfgloop.h (get_loop_location): Convert return type from
	location_t to dump_user_location_t.
	* cgraphunit.c (walk_polymorphic_call_targets): Update call to
	dump_printf_loc to pass in a dump_location_t rather than a
	location_t, via the gimple stmt.
	* coverage.c (get_coverage_counts): Update calls to
	dump_printf_loc to pass in dump_location_t rather than a
	location_t.
	* doc/optinfo.texi (Dump types): Convert example of
	dump_printf_loc from taking "locus" to taking "insn".  Update
	description of the "_loc" calls to cover dump_location_t.
	* dumpfile.c: Include "backend.h", "gimple.h", "rtl.h", and
	"selftest.h".
	(dump_user_location_t::dump_user_location_t): New constructors,
	from gimple *stmt and rtx_insn *.
	(dump_user_location_t::from_function_decl): New function.
	(dump_loc): Make static.
	(dump_gimple_stmt_loc): Convert param "loc" from location_t to
	const dump_location_t &.
	(dump_generic_expr_loc): Delete.
	(dump_printf_loc): Convert param "loc" from location_t to
	const dump_location_t &.
	(selftest::test_impl_location): New function.
	(selftest::dumpfile_c_tests): New function.
	* dumpfile.h: Include "profile-count.h".
	(class dump_user_location_t): New class.
	(struct dump_impl_location_t): New struct.
	(class dump_location_t): New class.
	(dump_printf_loc): Convert 2nd param from source_location to
	const dump_location_t &.
	(dump_generic_expr_loc): Delete.
	(dump_gimple_stmt_loc): Convert 2nd param from source_location to
	const dump_location_t &.
	* gimple-fold.c (fold_gimple_assign): Update call to
	dump_printf_loc to pass in a dump_location_t rather than a
	location_t, via the gimple stmt.
	(gimple_fold_call): Likewise.
	* gimple-loop-interchange.cc
	(loop_cand::analyze_iloop_reduction_var): Update for change to
	check_reduction_path.
	(tree_loop_interchange::interchange): Update for change to
	find_loop_location.
	* graphite-isl-ast-to-gimple.c (scop_to_isl_ast): Update for
	change in return-type of find_loop_location.
	(graphite_regenerate_ast_isl): Likewise.
	* graphite-optimize-isl.c (optimize_isl): Likewise.
	* graphite.c (graphite_transform_loops): Likewise.
	* ipa-devirt.c (ipa_devirt): Update call to dump_printf_loc to
	pass in a dump_location_t rather than a location_t, via the
	gimple stmt.
	* ipa-prop.c (ipa_make_edge_direct_to_target): Likewise.
	* ipa.c (walk_polymorphic_call_targets): Likewise.
	* loop-unroll.c (report_unroll): Convert "locus" param from
	location_t to dump_location_t.
	(decide_unrolling): Update for change to get_loop_location's
	return type.
	* omp-grid.c (struct grid_prop): Convert field "target_loc" from
	location_t to dump_user_location_t.
	(grid_find_single_omp_among_assignments_1): Updates calls to
	dump_printf_loc to pass in a dump_location_t rather than a
	location_t, via the gimple stmt.
	(grid_parallel_clauses_gridifiable): Convert "tloc" from
	location_t to dump_location_t.  Updates calls to dump_printf_loc
	to pass in a dump_location_t rather than a location_t, via the
	gimple stmt.
	(grid_inner_loop_gridifiable_p): Likewise.
	(grid_dist_follows_simple_pattern): Likewise.
	(grid_gfor_follows_tiling_pattern): Likewise.
	(grid_target_follows_gridifiable_pattern): Likewise.
	(grid_attempt_target_gridification): Convert initialization
	of local "grid" from memset to zero-initialization; FIXME: does
	this require C++11?  Update call to dump_printf_loc to pass in a
	optinfo_location rather than a location_t, via the gimple stmt.
	* profile.c (read_profile_edge_counts): Updates call to
	dump_printf_loc to pass in a dump_location_t rather than a
	location_t
	(compute_branch_probabilities): Likewise.
	* selftest-run-tests.c (selftest::run_tests): Call
	dumpfile_c_tests.
	* selftest.h (dumpfile_c_tests): New decl.
	* tree-loop-distribution.c (pass_loop_distribution::execute):
	Update for change in return type of find_loop_location.
	* tree-parloops.c (parallelize_loops): Likewise.
	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Convert
	"locus" from location_t to dump_user_location_t.
	(canonicalize_loop_induction_variables): Likewise.
	* tree-ssa-loop-ivopts.c (tree_ssa_iv_optimize_loop): Update
	for change in return type of find_loop_location.
	* tree-ssa-loop-niter.c (number_of_iterations_exit): Update call
	to dump_printf_loc to pass in a dump_location_t rather than a
	location_t, via the stmt.
	* tree-ssa-sccvn.c (eliminate_dom_walker::before_dom_children):
	Likewise.
	* tree-vect-loop-manip.c (find_loop_location): Convert return
	type from source_location to dump_user_location_t.
	(vect_do_peeling): Update for above change.
	(vect_loop_versioning): Update for change in type of
	vect_location.
	* tree-vect-loop.c (check_reduction_path): Convert "loc" param
	from location_t to dump_user_location_t.
	(vect_estimate_min_profitable_iters): Update for change in type
	of vect_location.
	* tree-vect-slp.c (vect_print_slp_tree): Convert param "loc" from
	location_t to dump_location_t.
	(vect_slp_bb): Update for change in type of vect_location.
	* tree-vectorizer.c (vect_location): Convert from source_location
	to dump_user_location_t.
	(try_vectorize_loop_1): Update for change in vect_location's type.
	(vectorize_loops): Likewise.
	(increase_alignment): Likewise.
	* tree-vectorizer.h (vect_location): Convert from source_location
	to dump_user_location_t.
	(find_loop_location): Convert return type from source_location to
	dump_user_location_t.
	(check_reduction_path): Convert 1st param from location_t to
	dump_user_location_t.
	* value-prof.c (check_counter): Update call to dump_printf_loc to
	pass in a dump_user_location_t rather than a location_t; update
	call to error_at for change in type of "locus".
	(check_ic_target): Update call to dump_printf_loc to
	pass in a dump_user_location_t rather than a location_t, via the
	call_stmt.

From-SVN: r262149

	* include/bits/regex.tcc (regex_iterator::operator==): Add missing
	noexcept.

From-SVN: r262146

When building with --with-tune=zEC12 and calling the resulting gcc
with --march=z13 (no extra -mtune), the binary would unexpectedly be compiled
with -march=z13 -mtune=zEC12.  This patch avoids using the default tune
parameter if -march is specified as argument but the user can still
explicitly state -march=z13 -mtune=zEC12.

gcc/ChangeLog:

2018-06-26  Robin Dapp  <rdapp@linux.vnet.ibm.com>

	* config/s390/s390.h (enum processor_flags): Do not use
	default tune parameter when -march was specified.

From-SVN: r262143

	PR target/86314
	* config/i386/i386.md (setcc + movzbl to xor + setcc peephole2s):
	Check reg_overlap_mentioned_p in addition to reg_set_p with the same
	operands.

	* gcc.dg/pr86314.c: New test.

From-SVN: r262141

	PR c++/86291
	* parser.c (cp_parser_omp_for_loop_init): Change for_block argument
	type from vec<tree, va_gc> * to vec<tree, va_gc> *&.

	* testsuite/libgomp.c++/pr86291.C: New test.

From-SVN: r262137

re PR debug/86257 (Program compiled with fPIC crashes while stepping over thread-local variable GDB)

	PR debug/86257
	* gcc.target/i386/pr86257.c: Add -mtls-dialect=gnu to dg-options.

From-SVN: r262136

	* gcc.target/i386/pr86257.c: Require 64-bit.

From-SVN: r262135

	* g++.dg/pr86082.C: Require IBM1047 support.

From-SVN: r262134

From-SVN: r262133

2018-06-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86287
	PR bootstrap/86316
	* tree-vect-loop.c (vect_transform_loop_stmt): Fix read-after-free.
	(vect_analyze_loop): Initialize n_stmts.

From-SVN: r262132

2018-06-26  Richard Biener  <rguenther@suse.de>

	PR middle-end/86271
	* fold-const.c (fold_convertible_p): Pointer extension
	isn't valid.

	* gcc.dg/pr86271.c: New testcase.

From-SVN: r262131

We didn't split cross-partition ranges in loclists to output a
whole-function location expression, but with nonzero locviews, we
force loclists, and then we have to split to avoid cross-partition
list entries.

for  gcc/ChangeLog

	PR debug/86064
	* dwarf2out.c (loc_list_has_views): Adjust comments.
	(dw_loc_list): Split single cross-partition range with
	nonzero locview.

for  gcc/testsuite/ChangeLog

	PR debug/86064
	* gcc.dg/pr86064.c: New.

From-SVN: r262130