libgomp:
	* configure.ac: Call AX_COUNT_CPUS.
	Substitute CPU_COUNT.
	* testsuite/Makefile.am (check-am): Use CPU_COUNT as processor
	count fallback.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* Makefile.in, testsuite/Makefile.in: Regenerate.

	config:
	* ax_count_cpus.m4: New file.

From-SVN: r271769

gcc/testsuite/

2019-05-30  Iain Sandoe  <iain@sandoe.co.uk>

	* gcc.target/i386/pr86257.c: Require native TLS support.
	* gcc.target/i386/stack-prot-sym.c: Likewise.

From-SVN: r271768

2019-05-30  Martin Liska  <mliska@suse.cz>

	* gdbinit.in: Fix 'ptc' command.  Add trt
	that prints TREE_TYPE($).

From-SVN: r271763

/cp
2019-05-31  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use declarator->id_loc in five
	error_at calls.

/testsuite
2019-05-31  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/cpp0x/alias-decl-18.C: Test location too.
	* g++.dg/cpp0x/udlit-nofunc-neg.C: Likewise.
	* g++.dg/parse/crash59.C: Likewise.
	* g++.dg/parse/error38.C: Likewise.
	* g++.dg/parse/error39.C: Likewise.
	* g++.dg/template/crash31.C: Likewise.
	* g++.dg/template/operator8.C: Likewise.
	* g++.dg/template/operator9.C: Likewise.

From-SVN: r271762

	PR go/90669
    compiler: remove range-based 'for' loop
    
    Fix for GCC PR/90669: remove range-based 'for' loop to preserve
    buildability with g++ version 4.X.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/179397

From-SVN: r271761

From-SVN: r271760

This test now fails on mingw-w64 because it's no longer always true that
the mt19937 engine is used when _GLIBCXX_USE_DEV_RANDOM is not defined.

Add tests for all the known tokens to ensure that at least one is
accepted.

	* testsuite/26_numerics/random/random_device/cons/token.cc: Fix test
	that fails on mingw-w64.

From-SVN: r271756

The fix for PR 88881 only added a workaround to filesystem::status, but
filesystem::symlink_status is also affected by the _wstat bug and needs
the same workaround.

The recent change to optimize path::parent_path() means that the
workaround can be simplified to just use parent_path().

	PR libstdc++/88881
	* src/c++17/fs_ops.cc [_GLIBCXX_FILESYSTEM_IS_WINDOWS]
	(status(const path&, error_code&)): Use parent_path() to remove
	trailing slash.
	(symlink_status(const path&, error_code&)): Duplicate workaround for
	bug in _wstat for paths with trailing slash.
	* testsuite/27_io/filesystem/operations/remove_all.cc: Check path
	with trailing slash.
	* testsuite/27_io/filesystem/operations/status.cc: Likewise.
	* testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.

From-SVN: r271755

Parsing a complete string is more efficient than appending each
component one-by-one.

	* src/c++17/fs_path.cc (path::parent_path()): Create whole path at
	once instead of building it iteratively.

From-SVN: r271754

[gcc]

2019-05-29  Bill Schmidt  <wschmidt@linux.ibm.com>
	    Alan Modra  <amodra@gmail.com>

	* config/rs6000/rs6000.c (rs6000_call_template_1): Handle pcrel
	calls here...
	(rs6000_indirect_call_template_1): ...and here.
	(rs6000_pltseq_template): Handle plt_pcrel34.  Rework tocsave,
	plt16_ha, plt16_lo, mtctr indirect calls.  Use
	rs6000_pltseq_enum.
	(rs6000_decl_ok_for_sibcall): New function.
	(rs6000_function_ok_for_sibcall): Refactor.
	(rs6000_longcall_ref): Use UNSPEC_PLT_PCREL when pcrel.
	(rs6000_call_aix): Don't emit toc restore rtl for indirect calls
	when pcrel.  Reorganize.
	(rs6000_sibcall_aix): Don't add r2 to function usage when pcrel.
	* rs6000.h (rs6000_pltseq_enum): New enum.
	* rs6000.md (UNSPEC_PLT_PCREL): New unspec.
	(*pltseq_tocsave): Use rs6000_pltseq_enum.
	(*pltseq_plt16_ha): Likewise.
	(*pltseq_plt16_lo): Likewise.
	(*pltseq_mtctr): Likewise.
	(*pltseq_plt_pcrel): New insn.
	(*call_local_aix): Handle @notoc calls.
	(*call_value_local_aix): Likewise.
	(*call_nonlocal_aix): Adjust lengths for pcrel calls.
	(*call_value_nonlocal_aix): Likewise.
	(*call_indirect_pcrel): New insn.
	(*call_value_indirect_pcrel): Likewise.


[gcc/testsuite]

2019-05-29  Bill Schmidt  <wschmidt@linux.ibm.com>

	* gcc.target/powerpc/notoc-direct-1.c: New.
	* gcc.target/powerpc/pcrel-sibcall-1.c: New.


Co-Authored-By: Alan Modra <amodra@gmail.com>

From-SVN: r271753

	PR c++/90598
	* tree.c (lvalue_kind): Return clk_none for expressions with
	with VOID_TYPE_P.

	* g++.dg/cpp0x/pr90598.C: New test.

From-SVN: r271752

re PR fortran/90539 (481.wrf slowdown by 25% on Intel Kaby with -Ofast -march=native starting with r271377)

2019-05-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/90539
	* gfortran.h (gfc_has_dimen_vector_ref): Add prototype.
	* trans.h (gfc_conv_subref_array_arg): Add argument check_contiguous.
	(gfc_conv_is_contiguous_expr): Add prototype.
	* frontend-passes.c (has_dimen_vector_ref): Remove prototype,
	rename to
	(gfc_has_dimen_vector_ref): New function name.
	(matmul_temp_args): Use gfc_has_dimen_vector_ref.
	(inline_matmul_assign): Likewise.
	* trans-array.c (gfc_conv_array_parameter): Also check for absence
	of a vector subscript before calling gfc_conv_subref_array_arg.
	Pass additional argument to gfc_conv_subref_array_arg.
	* trans-expr.c (gfc_conv_subref_array_arg): Add argument
	check_contiguous. If that is true, check if the argument
	is contiguous and do not repack in that case.
	* trans-intrinsic.c (gfc_conv_intrinsic_is_contiguous): Split
	away most of the work into, and call
	(gfc_conv_intrinsic_is_coniguous_expr): New function.

2019-05-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/90539
	* gfortran.dg/internal_pack_21.f90: Adjust scan patterns.
	* gfortran.dg/internal_pack_22.f90: New test.
	* gfortran.dg/internal_pack_23.f90: New test.

From-SVN: r271751

From-SVN: r271750

	* config/i386/sse.md (*save_multiple<mode>): Rename from
	save_multiple<mode>.
	(*restore_multiple<mode>): Rename from restore_multiple<mode>.
	(*restore_multiple_and_return<mode>): Rename from
	restore_multiple_and_return<mode>.
	(*restore_multiple_leave_return<mode>): Rename from
	restore_multiple_leave_return<mode>.

From-SVN: r271749

	* config.gcc (rx-*-linux*): New target.
	* config/rx/elf.opt: New file.
	* config/rx/linux.h: Likewise.
	* config/rx/t-linux: Likewise.
	* config/rx/rx.c (TARGET_SAVE_ACC_REGISTER): If not defined,
	make it zero.
	* config/rx/rx.h (ASM_APP_ON): Allow to be overridden.
	(ASM_APP_OFF): Likewise.
	* config/rx/rx.opt: Drop -msim and -mas100-syntax, they were
	moved elsewhere.

	* config.host (rx-*-linux*): Add new case.
	* config/rx/t-rx (HOST_LIBGCC2_CFLAGS): Force DFmode to SFmode.

From-SVN: r271748

	* tree-ssa-alias.c (same_type_for_tbaa): Return ture if main
	variants are pointer equivalent.

From-SVN: r271747

re PR c++/89875 (invalid typeof reference to a member of an incomplete struct accepted at function scope)

/cp
2019-05-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/89875
	* parser.c (cp_parser_sizeof_operand): When the type-id production
	did not work out commit to the tentative parse.

/testsuite
2019-05-29  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/89875
	* g++.dg/cpp0x/decltype-pr66548.C: Remove xfail.
	* g++.dg/template/sizeof-template-argument.C: Adjust expected error.

From-SVN: r271746

	* testsuite/util/testsuite_api.h: Remove names of unused parameters.

From-SVN: r271741

Add support for additional sources of randomness to std::random_device,
to allow using RDSEED for Intel CPUs and rand_s for Windows. When
supported these can be selected using the tokens "rdseed" and "rand_s".
For *-w64-mingw32 targets the "default" token will now use rand_s, and
for other i?86-*-* and x86_64-*-* targets it will try to use "rdseed"
first, then "rdrand", and finally "/dev/urandom".

To simplify the declaration of std::random_device in <bits/random.h> the
constructors now unconditionally call _M_init instead of _M_init_pretr1,
and the function call operator now unconditionally calls _M_getval. The
library code now decides whether _M_init and _M_getval should use a real
source of randomness or the mt19937 engine.

Existing code compiled against old libstdc++ headers will still call
_M_init_pretr1 and _M_getval_pretr1, but those functions now forward to
_M_init and _M_getval if a real source of randomness is available. This
means existing code compiled for mingw-w64 will start to use rand_s just
by linking to a new libstdc++.dll.

	* acinclude.m4 (GLIBCXX_CHECK_X86_RDSEED): Define macro to check if
	the assembler supports rdseed.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Use GLIBCXX_CHECK_X86_RDSEED.
	* config/os/mingw32-w64/os_defines.h (_GLIBCXX_USE_CRT_RAND_S): Define.
	* doc/html/*: Regenerate.
	* doc/xml/manual/status_cxx2011.xml: Document new tokens.
	* include/bits/random.h (random_device::random_device()): Always call
	_M_init rather than _M_init_pretr1.
	(random_device::random_device(const string&)): Likewise.
	(random_device::operator()()): Always call _M_getval().
	(random_device::_M_file): Replace first member of union with an
	anonymous struct, with _M_file as its first member.
	* src/c++11/random.cc [_GLIBCXX_X86_RDRAND] (USE_RDRAND): Define.
	[_GLIBCXX_X86_RDSEED] (USE_RDSEED): Define.
	(USE_MT19937): Define if none of the above are defined.
	(USE_POSIX_FILE_IO): Define.
	(_M_strtoul): Remove.
	[USE_RDSEED] (__x86_rdseed): Define new function.
	[_GLIBCXX_USE_CRT_RAND_S] (__winxp_rand_s): Define new function.
	(random_device::_M_init(const string&)): Initialize new union members.
	Add support for "rdseed" and "rand_s" tokens. Decide what the
	"default" token does according to which USE_* macros are defined.
	[USE_POSIX_FILE_IO]: Store a file descriptor.
	[USE_MT19937]: Forward to _M_init_pretr1 instead.
	(random_device::_M_init_pretr1(const string&)) [USE_MT19937]: Inline
	code from _M_strtoul.
	[!USE_MT19937]: Call _M_init, transforming the old default token or
	numeric tokens to "default".
	(random_device::_M_fini()) [USE_POSIX_FILE_IO]: Use close not fclose.
	(random_device::_M_getval()): Use new union members to obtain a
	random number from the stored function pointer or file descriptor.
	[USE_MT19937]: Obtain a value from the mt19937 engine.
	(random_device::_M_getval_pretr1()): Call _M_getval().
	(random_device::_M_getentropy()) [USE_POSIX_FILE_IO]: Use _M_fd
	instead of fileno.
	[!USE_MT19937] (mersenne_twister): Do not instantiate when not needed.
	* testsuite/26_numerics/random/random_device/85494.cc: New test.

From-SVN: r271740

From-SVN: r271739

	PR fortran/90329
	* lang.opt (fbroken-callers): Remove.
	(ftail-call-workaround, ftail-call-workaround=): New options.
	* gfortran.h (struct gfc_namespace): Add implicit_interface_calls.
	* interface.c (gfc_procedure_use): Set implicit_interface_calls
	for calls to implicit interface procedures.
	* trans-decl.c (create_function_arglist): Use flag_tail_call_workaround
	instead of flag_broken_callers.  If it is not 2, also require
	sym->ns->implicit_interface_calls.
	* invoke.texi (fbroken-callers): Remove documentation.
	(ftail-call-workaround, ftail-call-workaround=): Document.

From-SVN: r271738

	PR bootstrap/90543
	* optc-save-gen.awk: In cl_optimization_print, use correct condition
	for var_opt_string printing.  In cl_optimization_print_diff, print
	(null) instead of invoking undefined behavior if one of the
	var_opt_string pointers is NULL and use && instead of first || in the
	guarding condition.  For var_target_other options, handle const char *
	target variables similarly to const char * optimize node variables.

From-SVN: r271736

gcc/
2019-05-29  Sam Tebbs  <sam.tebbs@arm.com>

	* config/aarch64/aarch64-builtins.c (aarch64_builtins): Add
	AARCH64_PAUTH_BUILTIN_AUTIB1716 and AARCH64_PAUTH_BUILTIN_PACIB1716.
	* config/aarch64/aarch64-builtins.c (aarch64_init_pauth_hint_builtins):
	Add autib1716 and pacib1716 initialisation.
	* config/aarch64/aarch64-builtins.c (aarch64_expand_builtin): Add checks
	for autib1716 and pacib1716.
	* config/aarch64/aarch64-protos.h (aarch64_key_type,
	aarch64_post_cfi_startproc): Define.
	* config/aarch64/aarch64-protos.h (aarch64_ra_sign_key): Define extern.
	* config/aarch64/aarch64.c (aarch64_handle_standard_branch_protection,
	aarch64_handle_pac_ret_protection): Set default sign key to A.
	* config/aarch64/aarch64.c (aarch64_expand_epilogue,
	aarch64_expand_prologue): Add check for b-key.
	* config/aarch64/aarch64.c (aarch64_ra_sign_key,
	aarch64_post_cfi_startproc, aarch64_handle_pac_ret_b_key): Define.
	* config/aarch64/aarch64.h (TARGET_ASM_POST_CFI_STARTPROC): Define.
	* config/aarch64/aarch64.c (aarch64_pac_ret_subtypes): Add "b-key".
	* config/aarch64/aarch64.md (unspec): Add UNSPEC_AUTIA1716,
	UNSPEC_AUTIB1716, UNSPEC_AUTIASP, UNSPEC_AUTIBSP, UNSPEC_PACIA1716,
	UNSPEC_PACIB1716, UNSPEC_PACIASP, UNSPEC_PACIBSP.
	* config/aarch64/aarch64.md (do_return): Add check for b-key.
	* config/aarch64/aarch64.md (<pauth_mnem_prefix>sp): Replace
	pauth_hint_num_a with pauth_hint_num.
	* config/aarch64/aarch64.md (<pauth_mnem_prefix>1716): Replace
	pauth_hint_num_a with pauth_hint_num.
	* config/aarch64/aarch64.opt (msign-return-address=): Deprecate.
	* config/aarch64/iterators.md (PAUTH_LR_SP): Add UNSPEC_AUTIASP,
	UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP.
	* config/aarch64/iterators.md (PAUTH_17_16): Add UNSPEC_AUTIA1716,
	UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716.
	* config/aarch64/iterators.md (pauth_mnem_prefix): Add UNSPEC_AUTIA1716,
	UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716, UNSPEC_AUTIASP,
	UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP.
	* config/aarch64/iterators.md (pauth_hint_num_a): Replace
	UNSPEC_PACI1716 and UNSPEC_AUTI1716 with UNSPEC_PACIA1716 and
	UNSPEC_AUTIA1716 respectively.
	* config/aarch64/iterators.md (pauth_hint_num_a): Rename to pauth_hint_num
	and add UNSPEC_PACIBSP, UNSPEC_AUTIBSP, UNSPEC_PACIB1716, UNSPEC_AUTIB1716.
	* doc/invoke.texi (-mbranch-protection): Add b-key type.
	* config/aarch64/aarch64-bti-insert.c (aarch64_pac_insn_p): Rename
	UNSPEC_PACISP to UNSPEC_PACIASP and UNSPEC_PACIBSP.

gcc/testsuite
2019-05-29  Sam Tebbs  <sam.tebbs@arm.com>

	* gcc.target/aarch64/return_address_sign_b_1.c: New file.
	* gcc.target/aarch64/return_address_sign_b_2.c: New file.
	* gcc.target/aarch64/return_address_sign_b_3.c: New file.
	* gcc.target/aarch64/return_address_sign_b_exception.c: New file.
	* gcc.target/aarch64/return_address_sign_ab_exception.c: New file.
	* gcc.target/aarch64/return_address_sign_builtin.c: New file

libgcc/
2019-05-29  Sam Tebbs  <sam.tebbs@arm.com>

	* config/aarch64/aarch64-unwind.h (aarch64_cie_signed_with_b_key): New
	function.
	* config/aarch64/aarch64-unwind.h (aarch64_post_extract_frame_addr,
	aarch64_post_frob_eh_handler_addr): Add	check for b-key.
	* config/aarch64/aarch64-unwind-h (aarch64_post_extract_frame_addr,
	aarch64_post_frob_eh_handler_addr, aarch64_post_frob_update_context):
	Rename RA_A_SIGNED_BIT to RA_SIGNED_BIT.
	* unwind-dw2-fde.c (get_cie_encoding): Add check for 'B' in augmentation
	string.
	* unwind-dw2.c (extract_cie_info): Add check for 'B' in augmentation
	string.
	(RA_A_SIGNED_BIT): Rename to RA_SIGNED_BIT.

From-SVN: r271735

	* gimplify.c (struct gimplify_omp_ctx): Add clauses member.
	(gimplify_scan_omp_clauses): Initialize ctx->clauses.
	(gimplify_adjust_omp_clauses_1): Transform lastprivate conditional
	explicit clause on combined parallel into implicit shared clause.
	(gimplify_adjust_omp_clauses): Move lastprivate conditional clause
	and firstprivate if the decl has one too from combined parallel to
	the worksharing construct.
gcc/testsuite/
	* c-c++-common/gomp/lastprivate-conditional-2.c (foo): Don't expect
	sorry on lastprivate conditional on parallel for.
	* c-c++-common/gomp/lastprivate-conditional-3.c (foo): Add tests for
	lastprivate conditional warnings on parallel for constructs.
	* c-c++-common/gomp/lastprivate-conditional-4.c: New test.
libgomp/
	* testsuite/libgomp.c-c++-common/lastprivate_conditional_4.c: Rename
	to ...
	* testsuite/libgomp.c-c++-common/lastprivate-conditional-4.c: ... this.
	* testsuite/libgomp.c-c++-common/lastprivate-conditional-5.c: New test.
	* testsuite/libgomp.c-c++-common/lastprivate-conditional-6.c: New test.

From-SVN: r271733

	PR c/90628
	* c-common.c (check_builtin_function_arguments)
	<case BUILTIN_*_OVERFLOW>: Diagnose pointer to const qualified integer
	as last argument.

	* c-c++-common/builtin-arith-overflow-3.c: New test.

From-SVN: r271732

P1091R3 - Extending structured bindings to be more like var decls P1381R1 - Reference capture of structured bindings

	P1091R3 - Extending structured bindings to be more like var decls
	P1381R1 - Reference capture of structured bindings
	* decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
	function scope.
	(cp_finish_decomp): Copy over various decl properties from decl to
	v[i] in the tuple case.
	(grokdeclarator): Allow static, thread_local and __thread for C++2a
	and use pedwarn instead of error for older standard revisions.
	Make other structured binding diagnostic messages more i18n friendly.

	* g++.dg/cpp1z/decomp3.C (test): For static, expect only warning
	instead of error and only for c++17_down.  Add a thread_local test.
	(z2): Add a __thread test.
	* g++.dg/cpp2a/decomp1.C: New test.
	* g++.dg/cpp2a/decomp1-aux.cc: New file.
	* g++.dg/cpp2a/decomp2.C: New test.
	* g++.dg/cpp2a/decomp3.C: New test.

From-SVN: r271731

P1091R3 - Extending structured bindings to be more like var decls P1381R1 - Reference capture of structured bindings

	P1091R3 - Extending structured bindings to be more like var decls
	P1381R1 - Reference capture of structured bindings
	* decl.c (cp_maybe_mangle_decomp): Handle TREE_STATIC decls even at
	function scope.
	(cp_finish_decomp): Copy over various decl properties from decl to
	v[i] in the tuple case.
	(grokdeclarator): Allow static, thread_local and __thread for C++2a
	and use pedwarn instead of error for older standard revisions.
	Make other structured binding diagnostic messages more i18n friendly.

	* g++.dg/cpp1z/decomp3.C (test): For static, expect only warning
	instead of error and only for c++17_down.  Add a thread_local test.
	(z2): Add a __thread test.
	* g++.dg/cpp2a/decomp1.C: New test.
	* g++.dg/cpp2a/decomp1-aux.cc: New file.
	* g++.dg/cpp2a/decomp2.C: New test.
	* g++.dg/cpp2a/decomp3.C: New test.

From-SVN: r271730

2019-05-29  Martin Liska  <mliska@suse.cz>

	PR testsuite/90657
	* gcc.dg/ipa/pr90555.c: Remove duplicite dg-compile.

From-SVN: r271729

[gcc]

2019-05-28  Bill Schmidt  <wschmidt@linux.ibm.com>
	    Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000-cpus.def (OTHER_FUTURES_MASK): New #define.

[gcc/testsuite]

2019-05-28  Bill Schmidt  <wschmidt@linux.ibm.com>

	* gcc.target/powerpc/localentry-detect-1.c: New file.


Co-Authored-By: Michael Meissner <meissner@linux.ibm.com>

From-SVN: r271728

2019-05-28  Michael Meissner  <meissner@linux.ibm.com>

	* rtl.h (LABEL_REF_P): New #define.

From-SVN: r271727

From-SVN: r271726

	* config/pa/pa.c (hppa_profile_hook): Remove offset adjustment.

From-SVN: r271720

	PR libstdc++/90634
	* include/experimental/bits/fs_path.h (path::path(path&&)): Only call
	_M_split_cmpts() for a path with multiple components.
	(path::_S_is_dir_sep()): Add missing 'static' keyword to function.
	* src/filesystem/path.cc (path::_M_split_cmpts()): Count number of
	components and reserve space in vector. Return early when there is
	only one component.
	* testsuite/27_io/filesystem/path/construct/90634.cc: New test.
	* testsuite/experimental/filesystem/path/construct/90634.cc: New test.

From-SVN: r271717

	* testsuite/util/testsuite_fs.h (compare_paths): Use three-argument
	form of std::equals for C++11 compatibility.

From-SVN: r271716

	* config/sparc/sol2-unwind.h [__arch64__] (sparc64_is_sighandler):
	Remove Solaris 9 and 10 support.
	(sparc_is_sighandler): Likewise.

From-SVN: r271715

https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01844.html
	* decl.c (duplicate_decls): Assert a template newdecl has no
	specializations.

From-SVN: r271713

	* pt.c (tsubst_copy_and_build): Handle pack expansion properly.

	* g++.dg/cpp1y/lambda-generic-90548.C: New test.

From-SVN: r271705

Current vectoriser doesn't support masked loads for SLP. We should add that, to
allow things like:

void
f (int *restrict x, int *restrict y, int *restrict z, int n)
{
  for (int i = 0; i < n; i += 2)
    {
      x[i] = y[i] ? z[i] : 1;
      x[i + 1] = y[i + 1] ? z[i + 1] : 2;
    }
}

to be vectorized using contiguous loads rather than LD2 and ST2.

This patch was motivated by SVE, but it is completely generic and should apply
to any architecture with masked loads.

From-SVN: r271704

	* config/alpha/alpha.c [TARGET_ABI_OSF] (alpha_output_mi_thunk_osf):
	Remove obsolete use_thunk reference.
	* config/i386/i386.c (x86_output_mi_thunk): Likewise.
	* config/ia64/ia64.c (ia64_output_mi_thunk): Likewise.
	* config/nios2/nios2.c (nios2_asm_output_mi_thunk): Likewise.
	* config/or1k/or1k.c (or1k_output_mi_thunk): Likewise.
	* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
	* config/sh/sh.c (sh_output_mi_thunk): Likewise.
	* config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
	* config/tilegx/tilegx.c (tilegx_output_mi_thunk): Likewise.
	* config/tilepro/tilepro.c (tilepro_asm_output_mi_thunk): Likewise.

From-SVN: r271703

https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01699.html
	* tree.h (IDENTIFIER_ANON_P): New.
	(anon_aggrname_format, anon_aggname_p): Don't declare.
	(make_anon_name): Declare.
	* lto-streamer-out.c (DFS::DFS_write_tree_body): Use IDENTIFIER_ANON_P.
	(hash_tree): Likewise.
	* tree-streamer-out.c (write_ts_decl_minimal_tree): Likewise.
	* tree.c (anon_aggrname_p, anon_aggrname_format): Delete.
	(anon_cnt, make_anon_name): New.

 	gcc/cp/
	* cp-tree.h (make_anon_name): Drop declaration.
	(TYPE_UNNAMED_P): Use IDENTIFIER_ANON_P.
	* cp-lang.c (cxx_dwarf_name): Likewise.
	* class.c (find_flexarrays): Likewise.
	* decl.c (name_unnamed_type, xref_tag_1): Likewise.
	* error.c (dump_aggr_type): Likewise.
	* pt.c (push_template_decl_real): Likewise.
	* name-lookup.c (consider_binding_level): Likewise.
	(anon_cnt, make_anon_name): Delete.

	gcc/d/
	* types.cc (fixup_anonymous_offset): Use IDENTIFIER_ANON_P.
	(layout_aggregate_members): Use make_anon_name.

From-SVN: r271702