* include/std/type_traits (__is_member_object_pointer_helper): Use
	__not_<is_function<_Tp>>::type instead of integral_constant.
	(__is_member_function_pointer_helper): Likewise for
	is_function<_Tp>::type.
	(is_compund): Likewise for __not_<is_fundamental<_Tp>>::type.
	(__do_is_nt_destructible_impl): Use __bool_constant and reindent.
	(is_trivially_constructible): Remove redundant use of
	is_constructible.
	(__is_trivially_copy_assignable_impl): Remove redundant use of
	is_copy_assignable.
	(__is_trivially_move_assignable_impl): Remove redundant use of
	is_move_assignable.
	(is_trivially_destructible): Use __bool_constant.
	* testsuite/20_util/is_trivially_assignable/value.cc: Add some more
	tests for scalar types.

From-SVN: r262889

2018-07-19  Glen Joseph Fernandes  <glenjofe@gmail.com>

	* include/bits/stl_algobase.h (__copy_move_a): Used
	__is_trivially_copyable.
	(__copy_move_backward_a): Likewise.
	* testsuite/20_util/specialized_algorithms/uninitialized_copy/1.cc:
	New test.

From-SVN: r262884

2018-07-19  Paolo Carlini  <paolo.carlini@oracle.com>

	Revert fix for c++/59480 (and testsuite followup)

	/testsuite
	2018-07-19  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.old-deja/g++.mike/p784.C: Add -fpermissive.

	/cp
	2019-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59480, DR 136
	* decl.c (check_no_redeclaration_friend_default_args): New.
	(duplicate_decls): Use the latter; also check that a friend
	declaration specifying default arguments is a definition.

	/testsuite
	2019-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59480, DR 136
	* g++.dg/other/friend8.C: New.
	* g++.dg/other/friend9.C: Likewise.
	* g++.dg/other/friend10.C: Likewise.
	* g++.dg/other/friend11.C: Likewise.
	* g++.dg/other/friend12.C: Likewise.
	* g++.dg/parse/defarg4.C: Compile with -fpermissive -w.
	* g++.dg/parse/defarg8.C: Likewise.

From-SVN: r262883

This patch adds support for the Statistical Profiling Extension (SPE) on
AArch64. Even though the compiler will not generate code any differently
given this extension, it will need to pass it on to the assembler in
order to let it correctly assemble inline asm containing accesses to the
extension's system registers.  The same applies when using the
preprocessor on an assembly file as this first must pass through cc1.

I left the hwcaps string for SPE empty as the kernel does not define a
feature string for this extension.  The current effect of this is that
driver will disable profile feature bit in GCC.  This is OK though
because we don't, nor do we ever, enable this feature bit, as codegen is
not affect by the SPE support and more importantly the driver will still
pass the extension down to the assembler regardless.

gcc/ChangeLog
2018-07-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/aarch64-option-extensions.def: New entry for profile
	extension.
	* config/aarch64/aarch64.h (AARCH64_FL_PROFILE): New.
	* doc/invoke.texi (aarch64-feature-modifiers): New entry for profile
	extension.

gcc/testsuite/ChangeLog
2018-07-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* gcc.target/aarch64/profile.c: New test.

From-SVN: r262882

pair lanes

gcc/ChangeLog
2018-07-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	PR target/83009
	* config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): Make
	address check not strict.

gcc/testsuite/ChangeLog
2018-07-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	PR target/83009
	* gcc/target/aarch64/store_v2vec_lanes.c: Add extra tests.

From-SVN: r262881

gcc/ChangeLog
2018-07-19  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_simd_mov<VQ:mode>): Replace
	Umq with Umn.
	(store_pair_lanes<mode>): Likewise.
	* config/aarch64/aarch64-protos.h (aarch64_addr_query_type): Add new
	enum value 'ADDR_QUERY_LDP_STP_N'.
	* config/aarch64/aarch64.c (aarch64_addr_query_type): Likewise.
	(aarch64_print_address_internal): Add declaration.
	(aarch64_print_ldpstp_address): Remove.
	(aarch64_classify_address): Adapt mode for 'ADDR_QUERY_LDP_STP_N'.
	(aarch64_print_operand): Change printing of 'y'.
	* config/aarch64/predicates.md (aarch64_mem_pair_lanes_operand): Use
	new enum value 'ADDR_QUERY_LDP_STP_N', don't hardcode mode and use
	'true' rather than '1'.
	* gcc/config/aarch64/constraints.md (Uml): Likewise.
	(Uml): Rename to Umn.
	(Umq): Remove.

From-SVN: r262880

2018-07-19  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.h (struct vn_phi_s): Make phiargs member
	a trailing array.
	* tree-ssa-sccvn.c: Remove alloc-pool.h use.
	(vn_phi_hasher): Derive from nofree_ptr_hash and remove remove method.
	(vn_reference_hasher): Likewise.
	(struct vn_tables_s): Remove obstack and alloc-pool members.
	(vn_tables_obstack, vn_tables_insert_obstack): New global obstacks.
	(vn_nary_build_or_lookup_1): Manually build in vn_tables_insert_obstack.
	(vn_reference_insert): Allocate from obstack instead of from alloc-pool.
	(vn_reference_insert_pieces): Likewise.
	(alloc_vn_nary_op_noinit): Adjust.
	(vn_nary_op_insert_stmt): Allocate phiargs in-place.
	(vn_phi_eq): Adjust.
	(shared_lookup_phiargs): Remove.
	(vn_phi_lookup): Allocate temporary vn_phi_s on the stack.
	(vn_phi_insert): Allocate from obstack instead of from alloc-pool.
	(visit_reference_op_call): Likewise.
	(copy_nary, copy_phi, copy_reference): Remove.
	(process_scc): Rewind the obstack when iterating.  Do not
	copy the elements to valid_info but just move them from one
	hashtable to the other.
	(allocate_vn_table): Adjust.
	(free_vn_table): Likewise.
	(init_scc_vn): Likewise.
	(free_scc_vn): Likewise.

From-SVN: r262879

The new indirect_return attribute is intended to mark swapcontext in
<ucontext.h>.  Test __has_attribute (__indirect_return__) so that it
can be backported to GCC 8.

	PR target/86560
	* gcc.target/i386/pr86560-4.c: New test.
	* gcc.target/i386/pr86560-5.c: Likewise.
---
 gcc/testsuite/gcc.target/i386/pr86560-4.c | 21 +++++++++++++++++++++
 gcc/testsuite/gcc.target/i386/pr86560-5.c | 21 +++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/i386/pr86560-4.c
 create mode 100644 gcc/testsuite/gcc.target/i386/pr86560-5.c

diff --git a/gcc/testsuite/gcc.target/i386/pr86560-4.c b/gcc/testsuite/gcc.target/i386/pr86560-4.c
new file mode 100644
index 00000000000..a623e3dcbeb
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr86560-4.c
@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fcf-protection" } */
+/* { dg-final { scan-assembler-times {\mendbr} 2 } } */
+
+struct ucontext;
+
+extern int (*bar) (struct ucontext *)
+#ifdef __has_attribute
+# if __has_attribute (indirect_return)
+  __attribute__((__indirect_return__))
+# endif
+#endif
+;
+
+extern int res;
+
+void
+foo (struct ucontext *oucp)
+{
+  res = bar (oucp);
+}
diff --git a/gcc/testsuite/gcc.target/i386/pr86560-5.c b/gcc/testsuite/gcc.target/i386/pr86560-5.c
new file mode 100644
index 00000000000..33b0f6424c2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr86560-5.c
@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fcf-protection" } */
+/* { dg-final { scan-assembler-times {\mendbr} 2 } } */
+
+struct ucontext;
+
+extern int (*bar) (struct ucontext *)
+#ifdef __has_attribute
+# if __has_attribute (__indirect_return__)
+  __attribute__((__indirect_return__))
+# endif
+#endif
+;
+
+extern int res;
+
+void
+foo (struct ucontext *oucp)
+{
+  res = bar (oucp);
+}
-- 
2.17.1

From-SVN: r262878

In

struct ucontext;
typedef struct ucontext ucontext_t;

extern int (*bar) (ucontext_t *__restrict __oucp,
                   const ucontext_t *__restrict __ucp)
  __attribute__((__indirect_return__));

extern int res;

void
foo (ucontext_t *oucp, ucontext_t *ucp)
{
  res = bar (oucp, ucp);
}

bar() may return via indirect branch.  This patch changes indirect_return
to type attribute to allow indirect_return attribute on variable or type
of function pointer so that ENDBR can be inserted after call to bar().

gcc/

	PR target/86560
	* config/i386/i386.c (rest_of_insert_endbranch): Lookup
	indirect_return as function type attribute.
	(ix86_attribute_table): Change indirect_return to function
	type attribute.
	* doc/extend.texi: Update indirect_return attribute.

gcc/testsuite/

	PR target/86560
	* gcc.target/i386/pr86560-1.c: New test.
	* gcc.target/i386/pr86560-2.c: Likewise.
	* gcc.target/i386/pr86560-3.c: Likewise.

From-SVN: r262877

	* trans-intrinsic.c: (gfc_conv_intrinsic_minmax): Emit MIN_MAX_EXPR
	or IFN_FMIN/FMAX sequence to calculate the min/max when possible.

	* gfortran.dg/max_fmax_aarch64.f90: New test.
	* gfortran.dg/min_fmin_aarch64.f90: Likewise.
	* gfortran.dg/minmax_integer.f90: Likewise.

From-SVN: r262876

2018-07-19  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.old-deja/g++.mike/p784.C: Add -fpermissive.

From-SVN: r262875

	* wide-int.h (widest2_int): New.
	* gimple-fold.c (arith_overflowed_p): Use it.
	* tree.h (widest2_int_cst): New.
	* tree-vrp.c (wide_int_binop_overflow): Rename from
	vrp_int_const_binop.
	Rewrite to work on trees.
	(extract_range_from_multiplicative_op_1): Abstract code to...
	(wide_int_range_min_max): ...here.
	(wide_int_range_cross_product): ...and here.
	(extract_range_from_binary_expr_1): Abstract overflow code to...
	(wide_int_range_cross_product_wrapping): ...here.
	* tree-vrp.h (wide_int_range_cross_product): New.
	(wide_int_range_cross_product_wrapping): New.

From-SVN: r262874

2018-07-19  Eli Zaretskii  <eliz@gnu.org>

	* simple-object-elf.c (ENOTSUP): If not defined by errno.h, redirect
	to ENOSYS.

From-SVN: r262872

	* config/i386/x86-tune-costs.h (skylake_memcpy,
	skylake_memset): Replace rep_prefix with unrolling for size 512.

Co-Authored-By: Julia Koval <julia.koval@intel.com>

From-SVN: r262871

From-SVN: r262870

gcc/ChangeLog:

2018-07-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

	PR middle-end/86544
	* tree-ssa-phiopt.c (cond_removal_in_popcount_pattern): Handle comparision with EQ_EXPR
	in last stmt.

gcc/testsuite/ChangeLog:

2018-07-18  Kugan Vivekanandarajah  <kuganv@linaro.org>

	PR middle-end/86544
	* g++.dg/tree-ssa/pr86544.C: New test.

From-SVN: r262864

extend.texi (PowerPC AltiVec Built-in Functions): Rename this subsection to "PowerPC AltiVec/VSX Built-in Functions".

gcc/ChangeLog:

2018-07-18  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* doc/extend.texi (PowerPC AltiVec Built-in Functions): Rename
	this subsection to "PowerPC AltiVec/VSX Built-in Functions".
	(PowerPC AltiVec/VSX Built-in Functions): New name for subsection
	previously known as "PowerPC AltiVec Built-in Functions".  Move
	some material to new subsubsections "PowerPC AltiVec Built-in
	Functions on ISA 2.06" and "PowerPC AltiVec Built-in Functions on
	ISA 2.07".
	(PowerPC Altivec Built-in Functions on ISA 2.05): New subsubsection.
	(PowerPC Altivec Built-in Functions on ISA 2.06): Likewise.
	(PowerPC Altivec Built-in Functions on ISA 2.07): Likewise.
	(PowerPC Altivec Built-in Functions on ISA 3.0): Likewise.

From-SVN: r262863

	PR c++/86550
	* parser.c (cp_parser_decl_specifier_seq): Diagnose invalid type
	specifier if CP_PARSER_FLAGS_ONLY_MUTABLE_OR_CONSTEXPR.

	* g++.dg/cpp0x/lambda/lambda-86550.C: New test.

From-SVN: r262862

libcpp:
2018-07-18  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR 69558
        * macro.c (enter_macro_context): Change the location info for builtin
        macros and _Pragma from location of the closing parenthesis to location
        of the macro expansion point.

testsuite:
2018-07-18  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR 69558
        * c-c++-common/cpp/diagnostic-pragma-2.c: New test.
        * c-c++-common/pr69558.c: Remove xfail.
        * gcc.dg/cpp/builtin-macro-1.c: Adjust test expectations.
        * gcc.dg/pr61817-1.c: Likewise.
        * gcc.dg/pr61817-2.c: Likewise.
        * g++.dg/plugin/pragma_plugin.c: Warn at expansion_point_location.

From-SVN: r262861

2018-07-18  Janus Weil  <janus@gcc.gnu.org>
	    Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85599
	* dump-parse-tree.c (show_attr): Add handling of implicit_pure.
	* frontend-passes.c (do_warn_function_elimination): Do not warn for
	pure functions.
	* gfortran.h: Add prototypes for gfc_pure_function and
	gfc_implicit_pure_function.
	* gfortran.texi: Add chapter on evaluation of logical expressions.
	* invoke.texi: Mention that -Wfunction-elimination is implied
	by -Wextra.
	* lang.opt: Make -Wextra imply -Wfunction-elimination.
	* resolve.c (pure_function): Rename to gfc_pure_function.
	(gfc_implicit_pure_function): New function.
	(check_pure_function): Use it here.
	(impure_function_callback): New function.
	(resolve_operator): Call it via gfc_expr_walker.


2018-07-18  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/85599
	* gfortran.dg/function_optimize_5.f90: Add option
	'-faggressive-function-elimination' and update dg-warning clauses.
	* gfortran.dg/short_circuiting.f90: New test.

Co-Authored-By: Thomas Koenig <tkoenig@gcc.gnu.org>

From-SVN: r262860

	PR c++/86190 - bogus -Wsign-conversion warning
	* typeck.c (cp_build_binary_op): Fix formatting.  Add a warning
	sentinel.

	* g++.dg/warn/Wsign-conversion-3.C: New test.
	* g++.dg/warn/Wsign-conversion-4.C: New test.

From-SVN: r262855

2018-07-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86557
	* tree-vect-patterns.c (vect_recog_divmod_pattern): Also handle
	EXACT_DIV_EXPR.

From-SVN: r262854

	* Fix typos in ChangeLog entries.

From-SVN: r262852

re PR c++/59480 (Missing error diagnostic: friend declaration specifying a default argument must be a definition)

/cp
2018-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	* class.c (note_name_declared_in_class): Prefer permerror + inform
	to a pair of permerrors; use DECL_SOURCE_LOCATION.

/testsuite
2018-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/ext/uow-3.C: Adjust.
	* g++.dg/ext/uow-4.C: Likewise.
	* g++.dg/lookup/name-clash11.C: Likewise.
	* g++.dg/lookup/name-clash7.C: Likewise.
	* g++.dg/lookup/redecl1.C: Likewise.
	* g++.dg/warn/changes-meaning.C: Likewise.
	* g++.old-deja/g++.jason/scoping8.C: Likewise.
	* g++.old-deja/g++.law/nest1.C: Likewise.

/cp
2019-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59480, DR 136
	* decl.c (check_no_redeclaration_friend_default_args): New.
	(duplicate_decls): Use the latter; also check that a friend
	declaration specifying default arguments is a definition.

/testsuite
2019-07-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59480, DR 136
	* g++.dg/other/friend8.C: New.
	* g++.dg/other/friend9.C: Likewise.
	* g++.dg/other/friend10.C: Likewise.
	* g++.dg/other/friend11.C: Likewise.
	* g++.dg/other/friend12.C: Likewise.
	* g++.dg/parse/defarg4.C: Compile with -fpermissive -w.
	* g++.dg/parse/defarg8.C: Likewise.

From-SVN: r262851

2018-07-18  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390.c (s390_function_profiler): Generate CFI.

From-SVN: r262850

2018-07-18  Richard Biener  <rguenther@suse.de>

	PR debug/86523
	cp/
	* decl2.c (c_parse_final_cleanups): Call write_out_vars before
	start_static_storage_duration_function sets current_function_decl.

	* g++.dg/lto/pr86523-3_0.C: New testcase.

From-SVN: r262849

	* config/arm/arm.c (get_label_padding): Update for recent
	changes to label_to_alignment.

From-SVN: r262848

From-SVN: r262846

	PR tree-optimization/86010
	* tree-ssa-dse.c (compute_trims): Fix typo/thinko.

From-SVN: r262841

	* config/mips/mips.c (vr4130_align_insns): Update for recent
	changes to label_to_alignment.

From-SVN: r262838

       * config/frv/frv.c (frv_label_align): Update for recent changes
        to label_to_alignment.

From-SVN: r262837

	* config/nios2/nios2.c (nios2_label_align): Update for recent
	changes which dropped ALIGN_LABELS_LOG.

From-SVN: r262836

	* config/m68k/m68k.md (umulsi3_highpart+1, const_umulsi3_highpart)
	(smulsi3_highpart+1, const_smulsi3_highpart): Add CC_STATUS_INIT.

testsuite/:
	* gcc.target/m68k/mulsi_highpart.c: New test.

From-SVN: r262835

    
    CL 123362 introduced a bug in creating alias type's backend
    representation. A type's btype_ should not be set before
    named types are converted if it is a placeholder. For alias
    type, it is set too early. This may result in unresolved
    placeholders. This CL fixes it.
    
    Reviewed-on: https://go-review.googlesource.com/123975

From-SVN: r262833

	* lex.c (_cpp_lex_direct): Use CPP_DL_NOTE instead of CPP_DL_PEDWARN,
	CPP_DL_WARNING or CPP_DL_ERROR for note that diagnostics for C++ style
	comments is reported only once per file and guard those calls on the
	preceding cpp_error returning true.

	* gcc.dg/cpp/pr61854-c90.c (foo): Expect a note, rather than error.
	* gcc.dg/cpp/pr61854-c94.c (foo): Likewise.
	* gcc.dg/cpp/pr61854-4.c (foo): Likewise.
	* gcc.dg/cpp/pr61854-8.c: New test.

From-SVN: r262832

From-SVN: r262831

    
    Previously, when creating the backend representation of a
    circular type, we resolve the placeholder to a
    circular_pointer_type. The backend doesn't know what the
    concrete type is.
    
    This CL changes it to resolve the placeholder to the concrete
    type instead, so the backend may have better knowledge of the
    concrete type.
    
    Reviewed-on: https://go-review.googlesource.com/123738

From-SVN: r262830

2018-07-17  Fritz Reese  <fritzoreese@gmail.com>

    gcc/testsuite/ChangeLog:

	PR fortran/83184
	* gfortran.dg/dec_structure_23.f90: Oops, "un-fix" error messages.

From-SVN: r262828

[testsuite]

2018-07-06  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* gcc.target/powerpc/fold-vec-unpack-char.c: New.
	* gcc.target/powerpc/fold-vec-unpack-float.c: New.
	* gcc.target/powerpc/fold-vec-unpack-int.c: New.
	* gcc.target/powerpc/fold-vec-unpack-pixel.c: New.
	* gcc.target/powerpc/fold-vec-unpack-short.c: New.

From-SVN: r262827

* gcc.target/powerpc/pr57150.c: Require longdouble128.
* gcc.target/powerpc/pr79916.c: Require dfp.

From-SVN: r262826