gcc/testsuite/ChangeLog:
	* gcc.dg/Wbuiltin-declaration-mismatch-12.c: New test.

From-SVN: r269120

With -mavx, for

$ cat foo.i
extern float f;
extern double d;
extern int i;

void
foo (void)
{
  d = f;
  f = i;
}

we need to generate

	vxorp[ds]	%xmmN, %xmmN, %xmmN
	...
	vcvtss2sd	f(%rip), %xmmN, %xmmX
	...
	vcvtsi2ss	i(%rip), %xmmN, %xmmY

to avoid partial XMM register stall.  This patch adds a pass to generate
a single

	vxorps		%xmmN, %xmmN, %xmmN

at entry of the nearest dominator for basic blocks with SF/DF conversions,
which is in the fake loop that contains the whole function, instead of
generating one

	vxorp[ds]	%xmmN, %xmmN, %xmmN

for each SF/DF conversion.

NB: The LCM algorithm isn't appropriate here since it may place a vxorps
inside the loop.  Simple testcase show this:

$ cat badcase.c

extern float f;
extern double d;

void
foo (int n, int k)
{
  for (int j = 0; j != n; j++)
    if (j < k)
      d = f;
}

It generates

    ...
    loop:
      if(j < k)
        vxorps    %xmm0, %xmm0, %xmm0
        vcvtss2sd f(%rip), %xmm0, %xmm0
      ...
    loopend
    ...

This is because LCM only works when there is a certain benifit.  But for
conditional branch, LCM wouldn't move

   vxorps  %xmm0, %xmm0, %xmm0

out of loop.  SPEC CPU 2017 on Intel Xeon with AVX512 shows:

1. The nearest dominator

|RATE			|Improvement|
|500.perlbench_r	| 0.55%	|
|538.imagick_r		| 8.43%	|
|544.nab_r		| 0.71%	|

2. LCM

|RATE			|Improvement|
|500.perlbench_r	| -0.76% |
|538.imagick_r		| 7.96%  |
|544.nab_r		| -0.13% |

Performance impacts of SPEC CPU 2017 rate on Intel Xeon with AVX512
using

-Ofast -flto -march=skylake-avx512 -funroll-loops

before

commit e739972ad6ad05e32a1dd5c29c0b950a4c4bd576
Author: uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Thu Jan 31 20:06:42 2019 +0000

            PR target/89071
            * config/i386/i386.md (*extendsfdf2): Split out reg->reg
            alternative to avoid partial SSE register stall for TARGET_AVX.
            (truncdfsf2): Ditto.
            (sse4_1_round<mode>2): Ditto.

    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268427 138bc75d-0d04-0410-961f-82ee72b054a4

are:

|INT RATE		|Improvement|
|500.perlbench_r	| 0.55%	|
|502.gcc_r		| 0.14%	|
|505.mcf_r		| 0.08%	|
|523.xalancbmk_r	| 0.18%	|
|525.x264_r		|-0.49%	|
|531.deepsjeng_r	|-0.04%	|
|541.leela_r		|-0.26%	|
|548.exchange2_r	|-0.3%	|
|557.xz_r		|BuildSame|

|FP RATE		|Improvement|
|503.bwaves_r	        |-0.29% |
|507.cactuBSSN_r	| 0.04%	|
|508.namd_r		|-0.74%	|
|510.parest_r		|-0.01%	|
|511.povray_r		| 2.23%	|
|519.lbm_r		| 0.1%	|
|521.wrf_r		| 0.49%	|
|526.blender_r		| 0.13%	|
|527.cam4_r		| 0.65%	|
|538.imagick_r		| 8.43%	|
|544.nab_r		| 0.71%	|
|549.fotonik3d_r	| 0.15%	|
|554.roms_r		| 0.08%	|

After commit e739972ad6ad05e32a1dd5c29c0b950a4c4bd576, on Skylake client,
impacts on 538.imagick_r with

-fno-unsafe-math-optimizations -march=native -Ofast -funroll-loops -flto

1. Size comparision:

before:

   text	   data	    bss	    dec	    hex	filename
2436377	   8352	   4528	2449257	 255f69 imagick_r

after:

   text	   data	    bss	    dec	    hex	filename
2425249	   8352	   4528	2438129	 2533f1 imagick_r

2. Number of vxorps:

before		after		difference
4948            4135            -19.66%

3. Performance improvement:

|RATE			|Improvement|
|538.imagick_r		| 5.5%  |

gcc/

2019-02-22  H.J. Lu  <hongjiu.lu@intel.com>
	    Hongtao Liu  <hongtao.liu@intel.com>
	    Sunil K Pandey  <sunil.k.pandey@intel.com>

	PR target/87007
	* config/i386/i386-passes.def: Add
	pass_remove_partial_avx_dependency.
	* config/i386/i386-protos.h
	(make_pass_remove_partial_avx_dependency): New.
	* config/i386/i386.c (make_pass_remove_partial_avx_dependency):
	New function.
	(pass_data_remove_partial_avx_dependency): New.
	(pass_remove_partial_avx_dependency): Likewise.
	(make_pass_remove_partial_avx_dependency): Likewise.
	* config/i386/i386.md (avx_partial_xmm_update): New attribute.
	(*extendsfdf2): Add avx_partial_xmm_update.
	(truncdfsf2): Likewise.
	(*float<SWI48:mode><MODEF:mode>2): Likewise.
	(SF/DF conversion splitters): Disabled for TARGET_AVX.

gcc/testsuite/

2019-02-22  H.J. Lu  <hongjiu.lu@intel.com>
	    Hongtao Liu  <hongtao.liu@intel.com>
	    Sunil K Pandey  <sunil.k.pandey@intel.com>

	PR target/87007
	* gcc.target/i386/pr87007-1.c: New test.
	* gcc.target/i386/pr87007-2.c: Likewise.

Co-Authored-By: Hongtao Liu <hongtao.liu@intel.com>
Co-Authored-By: Sunil K Pandey <sunil.k.pandey@intel.com>

From-SVN: r269119

	PR middle-end/85598
	* gimple-ssa-sprintf.c (pass_sprintf_length::execute): Enable loop
	analysis for pass.

From-SVN: r269115

This is a repeat of commit r263989, which commit r264052 accidentally
reverted.

2019-02-22  Thiago Macieira  <thiago.macieira@intel.com>

	PR target/89444
	* config/i386/i386.h (PTA_WESTMERE): Remove PTA_AES.
	(PTA_SKYLAKE): Add PTA_AES.
	(PTA_GOLDMONT): Likewise.

From-SVN: r269114

2019-02-22  Richard Biener  <rguenther@suse.de>

	c-family/
	* c-pch.c (no_checksum): Remove.
	(pch_init): Remove assertion that executable_checksum is not
	all zero.
	(c_common_valid_pch): Likewise.

From-SVN: r269113

While doing more testing I found a couple of issues with my BTI patches.
This patch fixes them:
1) Remove a reference to return address key. The original patch was written
based on a different not yet committed patch ([PATCH 3/3][GCC][AARCH64] Add
support for pointer authentication B key) and I missed out on cleaning this
up. This is hidden behind the configuration option and thus went unnoticed.
2) Add a missed case for adding the BTI instruction in thunk functions.

*** gcc/ChangeLog ***

2019-02-22  Sudakshina Das  <sudi.das@arm.com>

	* config/aarch64/aarch64.c (aarch64_output_mi_thunk): Add bti
	instruction if enabled.
	(aarch64_override_options): Remove reference to return address key.

From-SVN: r269112

2019-02-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/89440
	* tree-vect-loop.c (vect_create_epilog_for_reduction): Remove
	not necessary assert.

	* gcc.dg/vect/pr89440.c: New testcase.

From-SVN: r269111

	gcc/testsuite/
	* lib/target-supports.exp (check_effective_target_offload_nvptx):
	Remove.

From-SVN: r269110

[libgomp] In OpenACC testing, by default only build for the offload target that we're actually going to test

... to avoid compilation overhead, and to keep simple '-foffload=[...]'
handling in test cases.

	libgomp/
	* testsuite/libgomp.oacc-c++/c++.exp: Specify
	"-foffload=$offload_target".
	* testsuite/libgomp.oacc-c/c.exp: Likewise.
	* testsuite/libgomp.oacc-fortran/fortran.exp: Likewise.
	* testsuite/lib/libgomp.exp
	(check_effective_target_openacc_nvidia_accel_configured): Remove,
	as (conceptually) merged into
	check_effective_target_openacc_nvidia_accel_selected.  Adjust all
	users.

From-SVN: r269109

... instead of through offload plugins.

	libgomp/
	* plugin/configfrag.ac: Populate and AC_SUBST offload_targets.
	* testsuite/libgomp-test-support.exp.in: Adjust.
	* testsuite/lib/libgomp.exp: Likewise.  Don't populate
	openacc_device_types_s.
	(offload_target_to_openacc_device_type): New proc.
	* testsuite/libgomp.oacc-c++/c++.exp: Adjust.
	* testsuite/libgomp.oacc-c/c.exp: Likewise.
	* testsuite/libgomp.oacc-fortran/fortran.exp: Likewise.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* testsuite/Makefile.in: Likewise.

From-SVN: r269108

	libgomp/
	* plugin/configfrag.ac: Populate and AC_SUBST offload_plugins
	instead of offload_targets, and AC_DEFINE_UNQUOTED OFFLOAD_PLUGINS
	instead of OFFLOAD_TARGETS.
	* target.c (gomp_target_init): Adjust.
	* testsuite/libgomp-test-support.exp.in: Likewise.
	* testsuite/lib/libgomp.exp: Likewise.  Populate
	openacc_device_types_s instead of offload_targets_s_openacc.
	(check_effective_target_openacc_nvidia_accel_selected)
	(check_effective_target_openacc_host_selected): Adjust.
	* testsuite/libgomp.oacc-c++/c++.exp: Likewise.
	* testsuite/libgomp.oacc-c/c.exp: Likewise.
	* testsuite/libgomp.oacc-fortran/fortran.exp: Likewise.
	* Makefile.in: Regenerate.
	* config.h.in: Likewise.
	* configure: Likewise.
	* testsuite/Makefile.in: Likewise.

From-SVN: r269107

[libgomp] In OpenACC offloading testing, be more explicit in what is supported, and what is not, or why not

	libgomp/
	* testsuite/lib/libgomp.exp: Error out for unknown offload target.
	* testsuite/libgomp.oacc-c++/c++.exp: Likewise.  Report if
	"offloading: supported, but hardware not accessible".
	* testsuite/libgomp.oacc-c/c.exp: Likewise.
	* testsuite/libgomp.oacc-fortran/fortran.exp: Likewise.

From-SVN: r269106

... instead of having an incomplete local implementation.

With these changes in place, we can then also revert the work-around r267213
"[nvptx] Unify C/Fortran routine handling in nvptx_goacc_validate_dims".

	gcc/fortran/
	PR fortran/72741
	* gfortran.h (oacc_routine_lop): New enum.
	(symbol_attribute): Use it.
	* openmp.c (gfc_oacc_routine_dims): Replace with...
	(gfc_oacc_routine_lop): ... this new function.
	(gfc_match_oacc_routine): Adjust.
	* trans-decl.c (add_attributes_to_decl): Likewise.
	gcc/
	PR fortran/72741
	* omp-general.c (oacc_replace_fn_attrib): Mostly split out into...
	(oacc_replace_fn_attrib_attr): ... this new function.
	* omp-general.h (oacc_replace_fn_attrib_attr): New prototype.
	* config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Revert workaround.
	gcc/testsuite/
	PR fortran/72741
	* gfortran.dg/goacc/classify-routine.f95: Adjust.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>

From-SVN: r269105

..., which were committed as part of, but logically don't belong into r261813
"Update OpenACC data clause semantics to the 2.5 behavior", and which confuse
later changes.

	gcc/fortran/
	* openmp.c (gfc_match_oacc_declare): Revert earlier changes.
	gcc/testsuite/
	* c-c++-common/goacc/routine-5.c: Revert earlier changes.
	* g++.dg/goacc/template.C: Likewise.

From-SVN: r269104

... which has been present (with HSA offloading configured) ever since this
test case got added.

	gcc/testsuite/
	PR fortran/78027
	* gfortran.dg/goacc/pr78027.f90: Add 'dg-additional-options "-Wno-hsa"'.

From-SVN: r269103

	gcc/c/
	* c-parser.c (c_parser_oacc_shape_clause): Add loc formal
	parameter.  Adjust all users.
	(c_parser_oacc_simple_clause): Replace parser with loc formal
	parameter.  Adjust all users.
	gcc/cp/
	* parser.c (cp_parser_oacc_simple_clause): Remove parser formal
	parameter, move loc formal parameter to the front.  Adjust all
	users.
	(cp_parser_oacc_shape_clause): Add loc formal parameter.  Adjust
	all users.

From-SVN: r269102

This patch adds support for the Neoverse N1 [1]. This CPU was previously supported through the Ares codename.
-mcpu=ares is retained as an alias of the new -mcpu=neoverse-n1.

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

	* config/arm/arm-cpus.in (ares): Rename to...
	(neoverse-n1): ... This.  Add ares as alias.
	* config/arm/arm-tables.opt: Regenerate.
	* config/arm/arm-tune.md: Likewise.
	* doc/invoke.txt (ARM Options): Document neoverse-n1.

From-SVN: r269101

This patch adds -mcpu and -mtune support for the Neoverse E1 CPU [1].
The new option is -mcpu=neoverse-e1.
Bootstrapped and tested on aarch64-none-linux-gnu. 

	* config/aarch64/aarch64-cores.def (neoverse-e1): Define.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* doc/invoke.texi (AArch64 Options): Document neoverse-e1 -mcpu option.

From-SVN: r269100

This patch adds support for the Neoverse N1 CPU [1]. This was supported in GCC earlier through the codename Ares,
which it now replaces. -mcpu=ares is still accepted as there's been a binutils release supporting it,
but the internal structures are renamed to use Neoverse N1-related identifiers.

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


	* config/aarch64/aarch64.c (ares_tunings): Rename to...
	(neoversen1_tunings): ... This.
	* config/aarch64/aarch64-cores.def (ares): Change tuning to the above.
	(neoverse-n1): New CPU.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* doc/invoke.txt (AArch64 Options): Document neoverse-n1.

From-SVN: r269099

2019-02-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/87609
	* cfghooks.h (dependence_hash): New typedef.
	(struct copy_bb_data): New type.
	(cfg_hooks::duplicate_block): Adjust to take a copy_bb_data argument.
	(duplicate_block): Likewise.
	* cfghooks.c (duplicate_block): Pass down copy_bb_data.
	(copy_bbs): Create and pass down copy_bb_data.
	* cfgrtl.c (cfg_layout_duplicate_bb): Adjust.
	(rtl_duplicate_bb): Likewise.
	* tree-cfg.c (gimple_duplicate_bb): If the copy_bb_data arg is not NULL
	remap dependence info.

	* gcc.dg/torture/restrict-7.c: New testcase.

From-SVN: r269098

2019-02-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87609
	* tree-core.h (tree_base): Document special clique values.
	* tree-inline.c (remap_dependence_clique): Do not use the
	special clique value of one.
	(maybe_set_dependence_info): Use clique one.
	(clear_dependence_clique): New callback.
	(compute_dependence_clique): Clear clique one from all refs
	before assigning it (again).

From-SVN: r269097

	* configure.host (abi_baseline_pair): Adjust for SPARC64/Linux.
	* config/abi/post/sparc64-linux-gnu: New directory.
	* config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file.
	* config/abi/post/sparc64-linux-gnu/32: New directory.
	* config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file.

From-SVN: r269096

The standard says that in a generic lambda we should speculatively capture
'this' if we see a call to an overload set that contains a non-static member
function, but it seems wrong to reject the program if we can't capture,
since it might not actually be needed.

	* lambda.c (lambda_expr_this_capture): Change add_capture_p to int.
	(maybe_generic_this_capture): Pass -1.

From-SVN: r269095

We mostly use is_normal_capture_proxy to decide whether or not to use
DECL_CAPTURED_VARIABLE; we could just check whether it's set.  VLA capture
is still mostly broken, but this fixes this ICE.

	* lambda.c (is_normal_capture_proxy): Check DECL_CAPTURED_VARIABLE.

From-SVN: r269094

The members of an explicit specialization of a class template don't have the
template parameters of that class template, so we shouldn't try to provide
arguments for them.  Only set outer_args when the class is an instantiation.

	* pt.c (do_class_deduction): Don't include explicit specialization
	args in outer_args.

From-SVN: r269093

	* testsuite/29_atomics/headers/atomic/types_std_c++20.cc: New test.
	* testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: New
	test.

From-SVN: r269091

This patch adds recognition of the u8string and u8string_view type
aliases to the gdb pretty printer extension.

2019-02-22  Tom Honermann  <tom@honermann.net>

	* python/libstdcxx/v6/printers.py (register_type_printers): Add type
	printers for u8string and u8string_view.

From-SVN: r269090

This patch augments existing tests to validate behavior for char8_t.  In
all cases, added test cases are cloned from existing tests for wchar_t
or char16_t.

A few tests required updates to line numbers for diagnostic messages.

2019-02-22  Tom Honermann  <tom@honermann.net>

	* testsuite/18_support/byte/ops.cc: Validate
	std::to_integer<char8_t>, std::to_integer<char16_t>, and
	std::to_integer<char32_t>.
	* testsuite/18_support/numeric_limits/dr559.cc: Validate
	std::numeric_limits<char8_t>.
	* testsuite/18_support/numeric_limits/lowest.cc: Validate
	std::numeric_limits<char8_t>::lowest().
	* testsuite/18_support/numeric_limits/max_digits10.cc: Validate
	std::numeric_limits<char8_t>::max_digits10.
	* testsuite/18_support/type_info/fundamental.cc: Validate
	typeinfo for char8_t.
	* testsuite/20_util/from_chars/1_c++20_neg.cc: New test, validating
	std::from_chars with char8_t.
	* testsuite/20_util/hash/requirements/explicit_instantiation.cc:
	Validate explicit instantiation of std::hash<char8_t>.
	* testsuite/20_util/is_integral/value.cc: Validate
	std::is_integral<char8_t>.
	* testsuite/20_util/make_signed/requirements/typedefs-4.cc:
	Validate std::make_signed<char8_t>.
	* testsuite/21_strings/basic_string/cons/char/deduction.cc:
	Validate u8string construction from char8_t sources.
	* testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Validate
	std::pmr::u8string.
	* testsuite/21_strings/basic_string_view/operations/compare/
	char/70483.cc: Validate substr operations on u8string_view.
	* testsuite/21_strings/basic_string_view/typedefs.cc: Validate that
	the u8string_view typedef is defined.
	* testsuite/21_strings/char_traits/requirements/
	constexpr_functions.cc: Validate char_traits<char8_t> constexpr
	member functions.
	* testsuite/21_strings/char_traits/requirements/
	constexpr_functions_c++17.cc: Validate char_traits<char8_t> C++17
	constexpr member functions.
	* testsuite/21_strings/headers/string/types_std_c++0x.cc: Validate
	that the u8string typedef is defined.
	* testsuite/22_locale/locale/cons/unicode.cc: Validate the presence
	of the std::codecvt<char16_t, char8_t, std::mbstate_t> and
	std::codecvt<char32_t, char8_t, std::mbstate_t> facets.
	* testsuite/29_atomics/atomic/cons/assign_neg.cc: Update line
	numbers.
	* testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
	* testsuite/29_atomics/atomic_integral/cons/assign_neg.cc:
	Likewise.
	* testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
	* testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
	Validate std::atomic<char8_t>::is_always_lock_free
	* testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc:
	Update line numbers.
	* testsuite/29_atomics/atomic_integral/operators/decrement_neg.cc:
	Likewise.
	* testsuite/29_atomics/atomic_integral/operators/increment_neg.cc:
	Likewise.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
	Validate std::experimental::pmr::u8string.
	* testsuite/experimental/string_view/typedefs.cc: Validate that the
	u8string_view typedef is defined.
	* testsuite/util/testsuite_common_types.h: Add char8_t, char16_t and
	char32_t to the typelists.

From-SVN: r269089

This patch corrects ambiguous partial specializations of
typelist::detail::append_.  Previously, neither append_<chain<Hd, Tl>,
Typelist_Chain> nor append_<Typelist_Chain, null_type> was a better
match for append_<chain<Hd, Tl>, null_type>.

2019-02-22  Tom Honermann  <tom@honermann.net>

	* include/ext/typelist.h: Constrain a partial specialization of
	typelist::detail::append_ to only match chain<T1,T2>.

From-SVN: r269088

	PR go/89406
    net: remove unixgram test sockets
    
    Backport https://golang.org/cl/163277 from the master library.
    
    Updates https://gcc.gnu.org/PR89406
    
    Reviewed-on: https://go-review.googlesource.com/c/163200

From-SVN: r269087

    
    Backport https://golang.org/cl/163237 from the master library:
    
        Ensure that cmd/go consistently calls base.Exit rather than os.Exit,
        so that we don't incorrectly leave the work directory around on exit.
    
        Test this by modifying the testsuite to run all the tests with TMPDIR
        set to a temporary directory, and then check that no files are left
        behind in that temporary directory. Adjust a couple of tests to make
        this approach work.
    
    Updates https://gcc.gnu.org/PR89406
    
    Reviewed-on: https://go-review.googlesource.com/c/163198

From-SVN: r269086

From-SVN: r269085

gcc/ChangeLog:

	* doc/extend.texi (__clear_cache): Correct signature.

libgcc/ChangeLog:

	* libgcc2.h (__clear_cache): Correct signature.
	* libgcc2.c (__clear_cache): Same.

gcc/testsuite/ChangeLog:

	* gcc.dg/Wbuiltin-declaration-mismatch-12.c: New test.

From-SVN: r269082

Here, we were trying to instantiate the default argument before setting
DECL_FRIEND_CONTEXT, so that the instantiated lambda ended up being treated
as part of the S template, which confused dwarf2out.

	* pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.

From-SVN: r269081

Just like in make_constrained_auto, we need to defer setting TYPE_CANONICAL
until we've set fields that will affect structural_comptypes.

	* pt.c (make_template_placeholder): Set TYPE_CANONICAL after
	CLASS_PLACEHOLDER_TEMPLATE.

From-SVN: r269080

	PR go/89170
	* varasm.c (decode_addr_const): Call lookup_constant_def rather
	than output_constant_def.
	(add_constant_to_table): New static function.
	(output_constant_def): Call add_constant_to_table.
	(tree_output_constant_def): Likewise.

From-SVN: r269079

	PR c++/89285
	* builtins.c (fold_builtin_arith_overflow): If first two args are
	INTEGER_CSTs, set intres and ovfres to constants rather than calls
	to ifn.

	* constexpr.c (struct constexpr_fundef): Add parms and result members.
	(retrieve_constexpr_fundef): Adjust for the above change.
	(register_constexpr_fundef): Save constexpr body with copy_fn,
	temporarily set DECL_CONTEXT on DECL_RESULT before that.
	(get_fundef_copy): Change FUN argument to FUNDEF with
	constexpr_fundef * type, grab body and parms/result out of
	constexpr_fundef struct and temporarily change it for copy_fn calls
	too.
	(cxx_eval_builtin_function_call): For __builtin_FUNCTION temporarily
	adjust current_function_decl from ctx->call context.  Test
	!potential_constant_expression instead of !is_constant_expression.
	(cxx_bind_parameters_in_call): Grab parameters from new_call.  Undo
	convert_for_arg_passing changes for TREE_ADDRESSABLE type passing.
	(cxx_eval_call_expression): Adjust get_fundef_copy caller.
	(cxx_eval_conditional_expression): For IF_STMT, allow then or else
	operands to be NULL.
	(label_matches): Handle BREAK_STMT and CONTINUE_STMT.
	(cxx_eval_loop_expr): Add support for FOR_STMT, WHILE_STMT and DO_STMT.
	(cxx_eval_switch_expr): Add support for SWITCH_STMT.
	(cxx_eval_constant_expression): Handle IF_STMT, FOR_STMT, WHILE_STMT,
	DO_STMT, CONTINUE_STMT, SWITCH_STMT, BREAK_STMT and CONTINUE_STMT.
	For SIZEOF_EXPR, recurse on the result of fold_sizeof_expr.  Ignore
	DECL_EXPR with USING_DECL operand.
	* lambda.c (maybe_add_lambda_conv_op): Build thisarg using
	build_int_cst to make it a valid constant expression.

	* g++.dg/ubsan/vptr-4.C: Expect reinterpret_cast errors.
	* g++.dg/cpp1y/constexpr-84192.C (f2): Adjust expected diagnostics.
	* g++.dg/cpp1y/constexpr-70265-2.C (foo): Adjust expected line of
	diagnostics.
	* g++.dg/cpp1y/constexpr-89285.C: New test.
	* g++.dg/cpp0x/constexpr-arith-overflow.C (add, sub, mul): Ifdef out
	for C++11.
	(TEST_ADD, TEST_SUB, TEST_MUL): Define to Assert (true) for C++11.
	* g++.dg/cpp0x/constexpr-arith-overflow2.C: New test.

From-SVN: r269078

The common base class for __is_move_insertable and __is_copy_insertable
instantiates both the copy and move tests, when only one is needed. The
unneeded one might cause errors outside the immediate context.

The solution used in this patch is to replace them with alias templates,
which will only be instantiated as needed.

	PR libstdc++/89416
	* include/bits/alloc_traits.h (__is_alloc_insertable_impl): Replace
	class template with class. Replace move and copy member types with
	member alias templates, so they are only instantiated when needed.
	(__is_copy_insertable, __is_move_insertable): Adjust base class.
	* testsuite/23_containers/vector/modifiers/push_back/89130.cc: Enable
	test for C++11/14/17 as well.
	* testsuite/23_containers/vector/modifiers/push_back/89416.cc: New
	test.

From-SVN: r269075

Since -mindirect-branch is incompatible with -fcf-protection=return and
-fcf-protection, replace -fcf-protection with -fcf-protection=branch.

	PR target/87412
	* gcc.target/i386/indirect-thunk-attr-14.c: Replace
	-fcf-protection with -fcf-protection=branch.
	* gcc.target/i386/indirect-thunk-attr-15.c: Likewise.
	* gcc.target/i386/indirect-thunk-attr-16.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-8.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-9.c: Likewise.
	* gcc.target/i386/indirect-thunk-extern-10.c: Likewise.

From-SVN: r269074

Base fields for empty bases appear in initialization order, which may not be
the same as layout order.  If they also show up in a CONSTRUCTOR in that
order, output_constructor_regular_field aborts because it understandably
doesn't want to go backwards.  I also considered making o_c_r_f more
tolerant of the case where the out-of-order field has fieldsize 0, and so no
actual data needs to be emitted, but we might as well avoid adding an
element to the CONSTRUCTOR in the first place.

	* typeck2.c (process_init_constructor_record): Skip trivial
	initialization of an empty base.

From-SVN: r269073