fix PR 86545

2018-08-25  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/86545
	* resolve.c (resolve_transfer): Correctly determine typespec for
	generic function calls, in order to throw a proper error.

2018-08-25  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/86545
	* gfortran.dg/generic_35.f90: New test case.

From-SVN: r263854

	* config/darwin.c (machopic_legitimize_pic_address): Clean up
	extraneous parentheses, dead code section and formatting.

From-SVN: r263851

	PR libstdc++/70694
	* configure.host (OPT_LDFLAGS): Don't append
	-fvisibility-inlines-hidden for newer Darwin.

From-SVN: r263850

From-SVN: r263849

With profiledbootstrap and --with-build-config=bootstrap-lto, linemap_add
may create a macro map when we run out of line map space.  This patch
changes start_location to UNKNOWN_LOCATION (0) in this case.

Tested with profiledbootstrap and --with-build-config=bootstrap-lto on
Linux/x86-64.

	PR bootstrap/86872
	* line-map.c (pure_location_p): Return true if linemap_lookup
	returns NULL.
	(linemap_add): Set start_location to 0 if we run out of line map
	space.

From-SVN: r263845

This patch tweaks how line numbers are printed for a diagnostic
containing multiple line spans.

With this patch, rather than printing span headers:

  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:22: note: message
  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:74:1:
  ++ |+#include <vector>
  74 | #endif
  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:22:
  87 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
     |                      ^~~

we now print:

  ../x86_64-pc-linux-gnu/libstdc++-v3/include/vector:87:22: note: message
  +++ |+#include <vector>
   74 | #endif
  ....
   87 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |                      ^~~

and for sufficiently close lines, rather than print a gap:

  + |+#include <stdio.h>
  1 | test (int ch)
  ..
  3 |  putchar (ch);
    |  ^~~~~~~

we print the line itself:

  + |+#include <stdio.h>
  1 | test (int ch)
  2 | {
  3 |  putchar (ch);
    |  ^~~~~~~

gcc/ChangeLog:
	PR 87091
	* diagnostic-show-locus.c (layout::layout): Ensure the margin is
	wide enough for jumps in the line-numbering to be visible.
	(layout::print_gap_in_line_numbering): New member function.
	(layout::calculate_line_spans): When using line numbering, merge
	line spans that are only 1 line apart.
	(diagnostic_show_locus): When printing line numbers, show gaps in
	line numbering directly, rather than printing headers.
	(selftest::test_diagnostic_show_locus_fixit_lines): Add test of
	line-numbering with multiple line spans.
	(selftest::test_fixit_insert_containing_newline_2): Add test of
	line-numbering, in which the spans are close enough to be merged.

gcc/testsuite/ChangeLog:
	PR 87091
	* gcc.dg/missing-header-fixit-3.c: Update for changes to how
	line spans are printed with -fdiagnostics-show-line-numbers.

From-SVN: r263843

	* gimple-ssa-evrp-analyze.c (set_ssa_range_info): Pass value_range
	to range_includes_zero_p.  Do not special case VR_ANTI_RANGE.
	* tree-vrp.c (range_is_nonnull): Remove.
	(range_includes_zero_p): Accept value_range instead of min/max.
	(extract_range_from_binary_expr_1): Do not early bail on
	POINTER_PLUS_EXPR.
	Use range_includes_zero_p instead of range_is_nonnull.
	(extract_range_from_unary_expr): Use range_includes_zero_p instead
	of range_is_nonnull.
	(vrp_meet_1): Pass value_range to range_includes_zero_p.  Do not
	special case VR_ANTI_RANGE.
	(vrp_finalize): Same.
	* tree-vrp.h (range_includes_zero_p): Pass value_range as argument
	instead of min/max.
	(range_is_nonnull): Remove.
	* vr-values.c (vrp_stmt_computes_nonzero): Use
	range_includes_zero_p instead of range_is_nonnull.
	(extract_range_basic): Pass value_range to range_includes_zero_p
	instead of range_is_nonnull.

From-SVN: r263842

2018-08-24  Marc Glisse  <marc.glisse@inria.fr>

	PR libstdc++/86822
	* libsupc++/new (operator new(size_t, nothrow_t), operator
	new[](size_t, nothrow_t), operator new(size_t, align_val_t, nothrow_t),
	operator new[](size_t, align_val_t, nothrow_t)): Add malloc attribute.

From-SVN: r263841

    
    This is a port of https://golang.org/cl/109596 to the gofrontend, in
    preparation for updating libgo to 1.11.
    
    Original CL description:
    
        getcallersp is intrinsified, and so the dummy arg is no longer
        needed. Remove it, as well as a few dummy args that are solely
        to feed getcallersp.
    
    Reviewed-on: https://go-review.googlesource.com/131116

From-SVN: r263840

Prior to this change, including a <debug/xxx> header when _GLIBCXX_DEBUG
is also defined would fail to compile in C++17 or later. The <debug/xxx>
header would include the standard <xxx> header which defined
std::pmr::xxx as an alias for std::xxx. But in Debug Mode std::xxx
refers to std::__debug::xxx which has not been defined yet (because it
is in <debug/xxx> after the inclusion of <xxx>).

This adds declarations of the debug containers before including the
non-Debug Mode <xxx> header, so that the std::pmr::xxx aliases work.

	* include/debug/deque (std::__debug::deque): Declare.
	* include/debug/forward_list (std::__debug::forward_list): Declare.
	* include/debug/list (std::__debug::list): Declare.
	* include/debug/map (std::__debug::map): Declare.
	* include/debug/set (std::__debug::set): Declare.
	* include/debug/unordered_map (std::__debug::unordered_map): Declare.
	* include/debug/unordered_set (std::__debug::unordered_set): Declare.
	* include/debug/vector (std::__debug::vector): Declare.
	* testsuite/23_containers/deque/types/pmr_typedefs_debug.cc: New test.
	* testsuite/23_containers/forward_list/pmr_typedefs_debug.cc: New
	test.
	* testsuite/23_containers/list/pmr_typedefs_debug.cc: New test.
	* testsuite/23_containers/map/pmr_typedefs_debug.cc: New test.
	* testsuite/23_containers/multimap/pmr_typedefs_debug.cc: New test.
	* testsuite/23_containers/multiset/pmr_typedefs_debug.cc: New test.
	* testsuite/23_containers/set/pmr_typedefs_debug.cc: New test.
	* testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc: New
	test.
	* testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc:
	New test.
	* testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc:
	New test.
	* testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc: New
	test.
	* testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
	Adjust dg-error lineno.
	* testsuite/23_containers/vector/types/pmr_typedefs_debug.cc: New
	test.

From-SVN: r263839

2018-08-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/86837
	* frontend-passes.c (var_in_expr_callback): New function.
	(var_in_expr): New function.
	(traverse_io_block): Use var_in_expr instead of
	gfc_check_dependency for checking if the variable depends on the
	previous interators.

2018-08-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/86837
	* gfortran.dg/implied_do_io_6.f90: New test.

From-SVN: r263838

	PR middle-end/87092
	* gcc.dg/pr87092.c: New test.

From-SVN: r263837

	PR c++/67012
	PR c++/86942
	* decl.c (grokdeclarator): Disallow functions with trailing return
        type with decltype(auto) as its type.  Also check the function if
        it's inner declarator doesn't exist

	* g++.dg/cpp0x/auto52.C: New test.
	* g++.dg/cpp1y/auto-fn52.C: New test.
	* g++.dg/cpp1y/auto-fn53.C: New test.
	* g++.dg/cpp1y/auto-fn54.C: New test.

From-SVN: r263836

	* emit-rtl.c (init_emit_once): Do not emit MODE_POINTER_BOUNDS RTXes.
	* emit-rtl.h (rtl_data): Remove return_bnd.
	* explow.c (trunc_int_for_mode): Do not handle POINTER_BOUNDS_MODE_P.
	* function.c (diddle_return_value): Do not handle crtl->return_bnd.
	* genmodes.c (complete_mode): Do not handle MODE_POINTER_BOUNDS.
	(POINTER_BOUNDS_MODE): Remove definition.
	(make_pointer_bounds_mode): Remove.
	(get_mode_class): Do not handle MODE_POINTER_BOUNDS.
	* machmode.h (POINTER_BOUNDS_MODE_P): Remove definition.
	(scalare_mode::includes_p): Do not handle MODE_POINTER_BOUNDS.
	* mode-classes.def: Do not define MODE_POINTER_BOUNDS.
	* stor-layout.c (int_mode_for_mode): Do not handle MODE_POINTER_BOUNDS.
	* tree-core.h (enum tree_index): Remove TI_POINTER_BOUNDS_TYPE.
	* varasm.c (output_constant_pool_2): Do not handle MODE_POINTER_BOUNDS.

	* config/i386/i386-modes.def (BND32, BND64): Remove.
	* config/i386/i386.c (dbx_register_map): Remove bound registers.
	(dbx64_register_map): Ditto.
	(svr4_dbx_register_map): Ditto.
	(indirect_thunk_bnd_needed): Remove.
	(indirect_thunks_bnd_used): Ditto.
	(indirect_return_bnd_needed): Ditto.
	(indirect_return_via_cx_bnd): Ditto.
	(enum indirect_thunk_prefix): Remove indirect_thunk_prefix_bnd.
	(indirect_thunk_name): Remove handling of indirect_thunk_prefix_bnd.
	(output_indirect_thunk): Ditto.  Remove need_prefix argument.
	(output_indirect_thunk_function): Remove handling of
	indirect_return_bnd_needed, indirect_return_via_cx_bnd,
	indirect_thunk_bnd_needed and indirect_thunks_bnd_used variables.
	(ix86_save_reg): Remove handling of crtl->return_bnd.
	(ix86_legitimate_constant_p): Remove handling of POINTER_BOUNDS_MODE_P.
	(ix86_print_operand_address_as): Remove handling of UNSPEC_BNDMK_ADDR
	and UNSPEC_BNDLX_ADDR.
	(ix86_output_indirect_branch_via_reg): Remove handling of
	indirect_thunk_prefix_bnd.
	(ix86_output_indirect_branch_via_push): Ditto.
	(ix86_output_function_return): Ditto.
	(ix86_output_indirect_function_return): Ditto.
	(avoid_func_arg_motion): Do not handle UNSPEC_BNDSTX.
	* config/i386/i386.h (FIXED_REGISTERS): Remove bound registers.
	(CALL_USED_REGISTERS): Ditto.
	(REG_ALLOC_ORDER): Update for removal of bound registers.
	(HI_REGISTER_NAMES): Ditto.
	* config/i386/i386.md (UNSPEC_BNDMK, UNSPEC_BNDMK_ADDR, UNSPEC_BNDSTX)
	(UNSPEC_BNDLDX, UNSPEC_BNDLDX_ADDR, UNSPEC_BNDCL, UNSPEC_BNDCU)
	(UNSPEC_BNDCN, UNSPEC_MPX_FENCE): Remove.
	(BND0_REG, BND1_REG, BND2_REG, BND3_REG): Remove
	(FIRST_PSEUDO_REG): Update.
	(BND): Remove mode iterator.
	* config/i386/predicates.md (bnd_mem_operator): Remove.

From-SVN: r263835

Variable-length SVE now supports enough permutes to define vect_perm.

The change to vect_perm_supported is currently a no-op because the
function is only called with a count of 3.

2018-08-24  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	* lib/target-supports.exp (vect_perm_supported): Only return
	false for variable-length vectors if the permute size is not
	a power of 2.
	(check_effective_target_vect_perm)
	(check_effective_target_vect_perm_byte)
	(check_effective_target_vect_perm_short): Remove check for
	variable-length vectors.
	* gcc.dg/vect/slp-23.c: Add an XFAIL for variable-length SVE.
	* gcc.dg/vect/slp-perm-10.c: Likewise.
	* gcc.dg/vect/slp-perm-9.c: Add an XFAIL for variable-length vectors.

From-SVN: r263834

The "new" VEC_PERM_EXPR handling makes it easy to support bswap
for variable-length vectors.

2018-08-24  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-stmts.c (vectorizable_bswap): Handle variable-length
	vectors.

gcc/testsuite/
	* gcc.target/aarch64/sve/bswap_1.c: New test.
	* gcc.target/aarch64/sve/bswap_2.c: Likewise.
	* gcc.target/aarch64/sve/bswap_3.c: Likewise.

From-SVN: r263833

The SLP code currently punts for all variable-length permutes.
This patch makes it handle the easy case of N->N permutes in which
the number of vector lanes is a multiple of N.  Every permute then
uses the same mask, and that mask repeats (with a stride) every
N elements.

The patch uses the same path for constant-length vectors,
since it should be slightly cheaper in terms of compile time.

2018-08-24  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-slp.c (vect_transform_slp_perm_load): Separate out
	the case in which the permute needs only a single element and
	repeats for every vector of the result.  Extend that case to
	handle variable-length vectors.
	* tree-vect-stmts.c (vectorizable_load): Update accordingly.

gcc/testsuite/
	* gcc.target/aarch64/sve/slp_perm_1.c: New test.
	* gcc.target/aarch64/sve/slp_perm_2.c: Likewise.
	* gcc.target/aarch64/sve/slp_perm_3.c: Likewise.
	* gcc.target/aarch64/sve/slp_perm_4.c: Likewise.
	* gcc.target/aarch64/sve/slp_perm_5.c: Likewise.
	* gcc.target/aarch64/sve/slp_perm_6.c: Likewise.
	* gcc.target/aarch64/sve/slp_perm_7.c: Likewise.

From-SVN: r263832

Since -gsplit-dwarf -g3 will output filename as indirect string, call
set_indirect_string on DW_MACINFO_start_file for -gsplit-dwarf -g3.

gcc/

	PR debug/79342
	* dwarf2out.c (save_macinfo_strings): Call set_indirect_string
	on DW_MACINFO_start_file for -gsplit-dwarf -g3.

gcc/testsuite/

	PR debug/79342
	* gcc.dg/pr79342.: New test.

From-SVN: r263831

2018-08-24  Richard Biener  <rguenther@suse.de>

	* cfg.h (struct control_flow_graph): Add edge_flags_allocated and
	bb_flags_allocated members.
	(auto_flag): New RAII class for allocating flags.
	(auto_edge_flag): New RAII class for allocating edge flags.
	(auto_bb_flag): New RAII class for allocating bb flags.
	* cfgloop.c (verify_loop_structure): Allocate temporary edge
	flag dynamically.
	* cfganal.c (dfs_enumerate_from): Remove use of visited sbitmap
	in favor of temporarily allocated BB flag.
	* hsa-brig.c: Re-order includes.
	* hsa-dump.c: Likewise.
	* hsa-regalloc.c: Likewise.
	* print-rtl.c: Likewise.
	* profile-count.c: Likewise.

From-SVN: r263830

There currently is nothing that prevents replacing the TOC_REGISTER in
a TOCREL unspec with something else, like a pseudo, or a memory ref.
This of course does not work.  Fix that.

Tested on powerpc64-linux {-m32,-m64}; committing.


Segher


2018-08-24  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/86989
	* config/rs6000/rs6000.c (toc_relative_expr_p): Check that the base is
	the TOC register.

---
 gcc/config/rs6000/rs6000.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index a967912..ed33912 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -7932,7 +7932,9 @@ toc_relative_expr_p (const_rtx op, bool strict, const_rtx *tocrel_base_ret,
     *tocrel_offset_ret = tocrel_offset;
 
   return (GET_CODE (tocrel_base) == UNSPEC
-	  && XINT (tocrel_base, 1) == UNSPEC_TOCREL);
+	  && XINT (tocrel_base, 1) == UNSPEC_TOCREL
+	  && REG_P (XVECEXP (tocrel_base, 0, 1))
+	  && REGNO (XVECEXP (tocrel_base, 0, 1)) == TOC_REGISTER);
 }
 
 /* Return true if X is a constant pool address, and also for cmodel=medium
-- 
1.8.3.1

From-SVN: r263829

	PR 87073/bootstrap
	* wide-int-range.cc (wide_int_range_div): Do not ignore result
	from wide_int_range_multiplicative_op.

From-SVN: r263828

From-SVN: r263827

gcc/testsuite/ChangeLog:
	* gcc.dg/Warray-bounds-35.c: New test.

From-SVN: r263822

From-SVN: r263821

	* testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
	Only define when RTTI is enabled.

From-SVN: r263820

2018-08-23  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* tree-vect-data-refs.c (vect_grouped_store_supported): Fix typo
	"permutaion".

From-SVN: r263819

2018-08-23  Giuliano Belinassi  <giuliano.belinassi@usp.br>

gcc/
	* genmatch.c (parser::parse_operation): Fix typo 'exapnded'
	to 'expanded'.

gcc/ada/
	* exp_unst.ads: Fix typo 'exapnded' to 'expanded'.

From-SVN: r263818

	* tree-scalar-evolution.c (final_value_replacement_loop): Dump
	full GENERIC expression used for replacement.

From-SVN: r263817

This function is declared unconditionally but was only defined for C++11
and later, leading to linker errors when the testsuite was run with
-std=gnu++98 -D_GLIBCXX_DEBUG added to the flags.

	* include/debug/vector (__niter_base): Define for C++98.

From-SVN: r263816

	* testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
	Fix C++98 test to not use C++11 features.
	* testsuite/25_algorithms/fill_n/2.cc: Likewise.

From-SVN: r263815

	* scripts/check_compile: Fix comments.

From-SVN: r263814

	* tree-vrp.c (abs_extent_range): Remove.
	(extract_range_into_wide_ints): Pass wide ints by reference.
	(extract_range_from_binary_expr_1): Rewrite the *DIV_EXPR code.
	Pass wide ints by reference in all calls to
	extract_range_into_wide_ints.
	* wide-int-range.cc (wide_int_range_div): New.
	* wide-int-range.h (wide_int_range_div): New.
	(wide_int_range_includes_zero_p): New.
	(wide_int_range_zero_p): New.

From-SVN: r263813

arm.md has some attributes "arch" and "arch_enabled" to aid enabling
and disabling insn alternatives based on the architecture being
targeted.  This patch introduces a similar attribute in the aarch64
backend.  The new attribute will be used to enable a new alternative
for the atomic_store insn in a future patch, but is an atomic change
in itself.

The new attribute has values "any", "fp", "fp16", "simd", and "sve".
These attribute values have been taken from the pre-existing
attributes "fp", "fp16", "simd", and "sve".

The standalone "fp" attribute has been reintroduced in terms of the
"arch" attribute as it's needed for the xgene1.md scheduling file --
the use in this file can't be changed to check for `(eq_attr "arch"
"fp")` as the file is reused by the arm.md machine description whose
'arch' attribute doesn't have an 'fp' value.

2018-08-23  Matthew Malcomson  <matthew.malcomson@arm.com>

	* config/aarch64/aarch64.md (arches): New enum.
	(arch): New enum attr.
	(arch_enabled): New attr.
	(enabled): Now uses arch_enabled only.
	(simd, sve, fp16): Removed attribute.
	(fp): Attr now defined in terms of 'arch'.
	(*mov<mode>_aarch64, *movsi_aarch64, *movdi_aarch64, *movti_aarch64,
	*movhf_aarch64, <optab><fcvt_target><GPF:mode>2,
	<FCVT_F2FIXED:fcvt_fixed_insn><GPF:mode>3,
	<FCVT_FIXED2F:fcvt_fixed_insn><GPI:mode>3): Merge 'fp' and 'simd'
	attributes into 'arch'.
	(*movsf_aarch64, *movdf_aarch64, *movtf_aarch64, *add<mode>3_aarch64,
	subdi3, neg<mode>2, <optab><mode>3, one_cmpl<mode>2,
	*<NLOGICAL:optab>_one_cmpl<mode>3, *xor_one_cmpl<mode>3,
	*aarch64_ashl_sisd_or_int_<mode>3, *aarch64_lshr_sisd_or_int_<mode>3,
	*aarch64_ashr_sisd_or_int_<mode>3, *aarch64_sisd_ushl): Convert use of
	'simd' attribute into 'arch'.
	(load_pair_sw_<SX:mode><SX2:mode>, load_pair_dw_<DX:mode><DX2:mode>,
	store_pair_sw_<SX:mode><SX2:mode>, store_pair_dw_<DX:mode><DX2:mode>):
	Convert use of 'fp' attribute to 'arch'.
	* config/aarch64/aarch64-simd.md (move_lo_quad_internal_<mode>,
	move_lo_quad_internal_<mode>): (different modes) Merge 'fp' and 'simd'
	into 'arch'.
	(move_lo_quad_internal_be_<mode>, move_lo_quad_internal_be_<mode>):
	(different modes) Merge 'fp' and 'simd' into 'arch'.
	(*aarch64_combinez<mode>, *aarch64_combinez_be<mode>): Merge 'fp' and
	'simd' into 'arch'.

From-SVN: r263811

The new code testing which way a comparison is best expressed creates
a pseudoregister (by hand) and creates some insns with that.  Such
insns will no longer recog() when pseudo-registers are no longer
aloowed (after reload).  But we have an ifcvt pass after reload (ce3).

This patch simply returns if we cannot create pseudos.


	PR rtl-optimization/87026
	* expmed.c (canonicalize_comparison): If we can no longer create
	pseudoregisters, don't.

From-SVN: r263810

	* include/debug/string (insert(__const_iterator, _InIter, _InIter)):
	[!_GLIBCXX_USE_CXX11_ABI]: Replace use of C++11-only cbegin() with
	begin(), for C++98 compatibility.

From-SVN: r263809

The __gnu_debug string (mostly) implements the C++11 API, but when it
wraps the old COW string many of the member functions in the base class
have the wrong parameter types or return types. This makes the
__gnu_debug::string type adapt itself to the base class API. This
actually makes the debug string slightly more conforming than the
underlying string type when using the old ABI.

	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::__const_iterator): Change access to protected.
	[!_GLIBCXX_USE_CXX11_ABI] (basic_string::__const_iterator): Define
	as typedef for iterator.
	* include/debug/string (__const_iterator): Use typedef from base.
	(insert(const_iterator, _CharT))
	(replace(const_iterator, const_iterator, const basic_string&))
	(replace(const_iterator, const_iterator, const _CharT*, size_type))
	(replace(const_iterator, const_iterator, const CharT*))
	(replace(const_iterator, const_iterator, size_type, _CharT))
	(replace(const_iterator, const_iterator, _InputIter, _InputIter))
	(replace(const_iterator, const_iterator, initializer_list<_CharT>)):
	Change const_iterator parameters to __const_iterator.
	(insert(iterator, size_type, _CharT)): Add C++98 overload.
	(insert(const_iterator, _InputIterator, _InputIterator)): Change
	const_iterator parameter to __const_iterator.
	[!_GLIBCXX_USE_CXX11_ABI]: Add workaround for incorrect return type
	of base's member function.
	(insert(const_iterator, size_type, _CharT)) [!_GLIBCXX_USE_CXX11_ABI]:
	Likewise.
	(insert(const_iterator, initializer_list<_CharT>))
	[!_GLIBCXX_USE_CXX11_ABI]: Likewise.
	* testsuite/21_strings/basic_string/init-list.cc: Remove effective
	target directive.

From-SVN: r263808

https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01386.html
	PR driver/87056
	* pex-unix.c (pex_unix_exec_child): Duplicate bad_fn into local
	scopes to avoid potential clobber.

Co-Authored-By: Martin Liska <mliska@suse.cz>

From-SVN: r263807

The AArch32 instruction sets prior to Armv7 do not define the ISB and
DSB instructions that are needed to form a speculation barrier.  While
I do not know of any instances of cores based on those instruction
sets being vulnerable to speculative side channel attacks it is
possible to run code built for those ISAs on more recent hardware
where they would become vulnerable.

This patch works around this by using a library call added to libgcc.
That code can then take any platform-specific actions necessary to
ensure safety.

For the moment I've only handled two cases: the library code being
built for armv7 or later anyway and running on Linux.

On Linux we can handle this by calling the kernel function that will
flush a small amount of cache.  Such a sequence ends with a ISB+DSB
sequence if running on an Armv7 or later CPU.

gcc:

	PR target/86951
	* config/arm/arm-protos.h (arm_emit_speculation_barrier): New
	prototype.
	* config/arm/arm.c (speculation_barrier_libfunc): New static
	variable.
	(arm_init_libfuncs): Initialize it.
	(arm_emit_speculation_barrier): New function.
	* config/arm/arm.md (speculation_barrier): Call
	arm_emit_speculation_barrier for architectures that do not have 
	DSB or ISB.
	(speculation_barrier_insn): Only match on Armv7 or later.

libgcc:

	PR target/86951
	* config/arm/lib1funcs.asm (speculation_barrier): New function.
	* config/arm/t-arm (LIB1ASMFUNCS): Add it to list of functions
	to build.

From-SVN: r263806

2018-08-23  Richard Biener  <rguenther@suse.de>

	PR middle-end/87024
	* tree-inline.c (copy_bb): Drop unused __builtin_va_arg_pack_len
	calls.

	* gcc.dg/pr87024.c: New testcase.

From-SVN: r263805

aarch64_vectorize_vec_perm_const was failing to set one_vector_p
if the permute had only a single input.  This in turn was hiding
a problem in the SVE TBL handling: it accepted single-vector
variable-length permutes, but sent them through the general
two-vector aarch64_expand_sve_vec_perm, which is only set up
to handle constant-length permutes.

2018-08-23  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/aarch64.c (aarch64_evpc_sve_tbl): Fix handling
	of single-vector TBLs.
	(aarch64_vectorize_vec_perm_const): Set one_vector_p when only
	one input is given.

gcc/testsuite/
	* gcc.dg/vect/no-vfa-vect-depend-2.c: Remove XFAIL.
	* gcc.dg/vect/no-vfa-vect-depend-3.c: Likewise.
	* gcc.dg/vect/pr65947-13.c: Update for vect_fold_extract_last.
	* gcc.dg/vect/pr80631-2.c: Likewise.

From-SVN: r263804