* doc/xml/manual/codecvt.xml: Move link to "UTF-8 and Unicode FAQ"
	to https.

From-SVN: r264547

    
    Reviewed-on: https://go-review.googlesource.com/136435

gotools/:
	* Makefile.am (mostlyclean-local): Run chmod on check-go-dir to
	make sure it is writable.
	(check-go-tools): Likewise.
	(check-vet): Copy internal/objabi to check-vet-dir.
	* Makefile.in: Rebuild.

From-SVN: r264546

	* cp-tree.h (build_noexcept_spec, add_exception_specifier): Adjust
	declarations.
	* except.c (build_noexcept_spec): Change the type of the complain
	parameter to tsubst_flags_t.
	* typeck2.c (add_exception_specifier): Likewise.

From-SVN: r264543

/cp
2018-09-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85070
	* method.c (lazily_declare_fn): During error-recovery add_method
	may return false.

/testsuite
2018-09-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85070
	* g++.dg/cpp0x/pr85070.C: New.

From-SVN: r264541

ENDBR must be the first instruction of a function.  This patch queues
ENDBR if we need to put the profiling counter call before the prologue
and generate ENDBR before the profiling counter call.

gcc/

	PR target/82699
	* config/i386/i386.c (rest_of_insert_endbranch): Set
	endbr_queued_at_entrance to true and don't insert ENDBR if
	x86_function_profiler will be called.
	(x86_function_profiler): Insert ENDBR if endbr_queued_at_entrance
	is true.
	* config/i386/i386.h (machine_function): Add
	endbr_queued_at_entrance.

gcc/testsuite/

	PR target/82699
	* gcc.target/i386/pr82699-1.c: New file.
	* gcc.target/i386/pr82699-2.c: Likewise.
	* gcc.target/i386/pr82699-3.c: Likewise.
	* gcc.target/i386/pr82699-4.c: Likewise.
	* gcc.target/i386/pr82699-5.c: Likewise.
	* gcc.target/i386/pr82699-6.c: Likewise.

From-SVN: r264540

2018-09-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87397
	* gfc_conv_procedure_call: Do not add clobber on INTENT(OUT)
	for variables in an associate statement.

2018-09-24  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87401
	* gfortran.dg/intent_out_12.f90: New test.

From-SVN: r264539

[testsuite]

2018-09-24  Will Schmidt  <will_schmidt@vnet.ibm.com>

	PR testsuite/86952
	* gcc.target/powerpc/p8-vec-xl-xst-v2.c: Add and
	update expected codegen

From-SVN: r264538

On S/390 there is a need to support more than 32 instruction
alternatives per define_insn.  Currently this is not explicitly
prohibited or unsupported: MAX_RECOG_ALTERNATIVES is equal 35, and,
futhermore, the related code uses uint64_t for bitmaps in most places.

However, genattrtab contains the logic to convert (eq_attr "attribute"
"value") RTXs to (eq_attr_alt bitmap) RTXs, where bitmap contains
alternatives, whose "attribute" has the corresponding "value".
Unfortunately, bitmap is only 32 bits.

When adding the 33rd alternative, this led to (eq_attr "type" "larl")
becoming (eq_attr_alt -1050625 1), where -1050625 == 0xffeff7ff.  The
cleared bits 12, 21 and 32 correspond to two existing and one newly
added insn of type "larl".  compute_alternative_mask sign extended this
to 0xffffffffffeff7ff, which contained non-existent alternatives, and
this made simplify_test_exp fail with "invalid alternative specified".

I'm not sure why it didn't fail the same way before, since the top bit,
which led to sign extension, should have been set even with 32
alternatives.  Maybe simplify_test_exp was not called for "type"
attribute for some reason?

This patch widens EQ_ATTR_ALT bitmap to 64 bits, making it possible to
gracefully handle up to 64 alternatives.  It eliminates the problem with
the 33rd alternative on S/390.

gcc/ChangeLog:

2018-09-24  Ilya Leoshkevich  <iii@linux.ibm.com>

	* genattrtab.c (mk_attr_alt): Use alternative_mask.
	(attr_rtx_1): Adjust caching to match the new EQ_ATTR_ALT field
        types.
	(check_attr_test): Use alternative_mask.
	(get_attr_value): Likewise.
	(compute_alternative_mask): Use alternative_mask and XWINT.
	(make_alternative_compare): Use alternative_mask.
	(attr_alt_subset_p): Use XWINT.
	(attr_alt_subset_of_compl_p): Likewise.
	(attr_alt_intersection): Use alternative_mask and XWINT.
	(attr_alt_union): Likewise.
	(attr_alt_complement): Use HOST_WIDE_INT and XWINT.
        (mk_attr_alt): Use alternative_mask and HOST_WIDE_INT.
	(simplify_test_exp): Use alternative_mask and XWINT.
	(write_test_expr): Use alternative_mask and XWINT, adjust bit
        number calculation to support 64 bits.  Generate code that
        checks 64-bit masks.
	(main): Use alternative_mask.
	* rtl.def (EQ_ATTR_ALT): Change field types from ii to ww.

From-SVN: r264537

	gcc/fortran/
	* openmp.c (resolve_oacc_loop_blocks):

	gcc/testsuite/
	* gfortran.dg/goacc/nested-parallelism.f90: New test.

From-SVN: r264536

S/390 epilogue ends with (parallel [(return) (use %r14)]) instead of
the more usual (return) or (simple_return).  This sequence is not
recognized by the conditional return logic in try_optimize_cfg ().

This was introduced for processors older than z196, where it is
sometimes profitable to use call-clobbered register for returning
instead of %r14.  On newer processors we always return via %r14,
for which the fact that it's used is already reflected by
EPILOGUE_USES.  In this case a simple (return) suffices.

This patch changes return_use () to emit simple (return)s when
returning via %r14.  The resulting sequences are recognized by the
conditional return logic in try_optimize_cfg ().

gcc/ChangeLog:

2018-09-24  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR target/80080
	* config/s390/s390.c (s390_emit_epilogue): Do not use PARALLEL
	RETURN+USE when returning via %r14.

gcc/testsuite/ChangeLog:

2018-09-24  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR target/80080
	* gcc.target/s390/risbg-ll-3.c: Expect conditional returns.
	* gcc.target/s390/zvector/vec-cmp-2.c: Likewise.

From-SVN: r264535

2018-09-24  Martin Liska  <mliska@suse.cz>

	* gcov.c (output_lines): Print colorization legend
	for both flag_use_colors and flag_use_hotness_colors.
	Reword the help.

From-SVN: r264531

2018-09-24  Martin Liska  <mliska@suse.cz>

	* coverage.c (get_coverage_counts): Use warning_at
	with current_function_decl location. Use %qD in warning
	message.

From-SVN: r264530

2018-09-24  Martin Liska  <mliska@suse.cz>

	* memory-block.h (memory_block_pool::release): Annotate with
	valgrind that the memory is not accessible.

From-SVN: r264529

2018-09-24  Martin Liska  <mliska@suse.cz>

	PR sanitizer/85774
	* asan.c: Make asan_handled_variables extern.
	* asan.h: Likewise.
	* cfgexpand.c (expand_stack_vars): Make sure
	a representative is unpoison if another
	variable in the partition is handled by
	use-after-scope sanitization.
2018-09-24  Martin Liska  <mliska@suse.cz>

	PR sanitizer/85774
	* g++.dg/asan/pr85774.C: New test.

From-SVN: r264528

	* doc/xml/manual/policy_data_structures_biblio.xml: Update link
	to "Priority Queues and the STL".

From-SVN: r264527

The test assumed __int128 to be available whenever __SSE__ was
defined, but this assumption doesn't hold on 32-bit x86.  Fixed.

for  gcc/testsuite/ChangeLog

	PR middle-end/87054
	* gcc.dg/pr87054.c: Adjust for no __int128 on x86.

From-SVN: r264526

re PR ada/87396 (ada/gcc-interface/decl.c:8798:53:Value Conversion Issue: implicit conversion from 'int' to 'char' changes value from 132 to -124: -Wconstant-conversion)

	PR ada/87396
	* fe.h (Get_Attribute_Definition_Clause): Use 'unsigned char' instead
	of 'char' as the type of the second parameter.

From-SVN: r264525

2018-09-24  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/63155
	* tree-ssa-propagate.c (add_ssa_edge): Avoid adding PHIs to
	the worklist when the edge of the respective argument isn't
	executable.

From-SVN: r264523

From-SVN: r264522

2018-09-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87397
	* gfc_conv_procedure_call: Do not add clobber on INTENT(OUT)
	for variables having the dimension attribute.

2018-09-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87395
	* gfortran.dg/intent_out_11.f90: New test.

From-SVN: r264518

	* config/i386/i386.h (enum reg_class): Rename MASK_REGS to
	ALL_MASK_REGS and MASK_EVEX_REGS to MASK_REGS.
	(MASK_CLASS_P): Update for rename.
	(MAYBE_MASK_CLASS_P): Ditto.
	(REG_CLASS_NAMES): Update.
	(REG_CLASS_CONTENT): Update.
	* config/i386/i386.c (regclass_map): Update for MASK_REG
	and ALL_MASK_REGS rename.
	* config/i386/constraints.md (Yk): Update for rename.
	(k): Ditto.

	* config/i386/i386.h (enum reg_class): Remove
	EVEX_SSE_REGS and MOD4_SSE_REGS.
	(REG_CLASS_NAMES): Update.
	(REG_CLASS_CONTENT): Update.
	* config/i386/i386.c (regclass_map): Declare AVX-512 SSE
	registers as ALL_SSE_REGS.
	(ix86_additional_allocno_class_p): Remove.
	(TARGET_ADDITIONAL_ALLOCNO_CLASS_P): Remove.
	(ix86_register_priority): Lower priority of EVEX SSE registers.
	Use IN_RANGE macro where appropriate.
	(ix86_hard_regno_mode_ok): Merge AVX-5124FMAPS and
	AVX-5124VNNIW checks.
	(ix86_modes_tieable_p): Tie 512-bit SSE modes.
	* config/i386/sse.md (avx5124fmaddps_4fmaddps)
	(avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddps_maskz)
	(avx5124fmaddps_4fmaddss, avx5124fmaddps_4fmaddss_mask)
	(avx5124fmaddps_4fmaddss_maskz, avx5124fmaddps_4fnmaddps)
	(avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddps_maskz)
	(avx5124fmaddps_4fnmaddss, avx5124fmaddps_4fnmaddss_mask)
	(avx5124fmaddps_4fnmaddss_maskz, avx5124vnniw_vp4dpwssd)
	(avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssd_maskz)
	(avx5124vnniw_vp4dpwssds, avx5124vnniw_vp4dpwssds_mask)
	(avx5124vnniw_vp4dpwssds_maskz): Use "v" instead of "Yh" constraint.
	* config/i386/constraints.md (Yh): Remove.

	* config/i386/i386.c (regclass_map): Declare integer REX registers
        as GENERAL_REGS.

From-SVN: r264516

	* doc/xml/manual/using_exceptions.xml: Move boost.orgs link to
	https.

From-SVN: r264515

From-SVN: r264514

It was recently noticed that for a few of the coarray intrinsics array
index calculations were done in integer_type_node instead of
gfc_array_index_type.  This patch fixes this.

Regtested on x86_64-pc-linux-gnu.

gcc/fortran/ChangeLog:

2018-09-23  Janne Blomqvist  <jb@gcc.gnu.org>

	* trans-expr.c (gfc_caf_get_image_index): Do array index
	calculations in gfc_array_index_type.
	* trans-intrinsic.c (conv_intrinsic_event_query): Likewise.
	* trans-stmt.c (gfc_trans_lock_unlock): Likewise.
	(gfc_trans_event_post_wait): Likewise.

gcc/testsuite/ChangeLog:

2018-09-23  Janne Blomqvist  <jb@gcc.gnu.org>

	* gfortran.dg/coarray_lib_alloc_4.f90: Fix scan patterns.
	* gfortran.dg/coarray_lock_7.f90: Likewise.

From-SVN: r264513

2018-09-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87395
	* gfc_conv_procedure_call: Reformat comments slightly. Do not add
	clobber on INTENT(OUT) for saved variables.

2018-09-23  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/87395
	* gfortran.dg/intent_out_10.f90: New test.

From-SVN: r264512

From-SVN: r264510

2018-09-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/41453
	* trans.h (gfc_conv_expr_reference): Add optional argument
	add_clobber to prototype.
	(gfc_conv_procedure_call):  Set add_clobber argument to
	gfc_conv_procedure_reference to true for scalar, INTENT(OUT),
	non-pointer, non-allocatable, non-dummy variables whose type
	is neither BT_CHARACTER, BT_DERIVED or BT_CLASS, but only if
	the procedure is not elemental.
	* trans-expr.c (gfc_conv_procedure_reference): Add clobber
	statement before call if add_clobber is set.

2018-09-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/41453
	* gfortran.dg/intent_optimize_2.f90: New test.

From-SVN: r264506

2018-09-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/87318
	* gfortran.dg/dtio_1.f90: Update test to valid code.

From-SVN: r264505

	PR target/86798
	* config/nds32/nds32.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
	Define to speculation_safe_value_not_needed.

From-SVN: r264503

2018-09-22  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/85603
	* trans-array.c (gfc_alloc_allocatable_for_assignment): Test
	the charlen backend_decl before using the VAR_P macro.

2018-09-22  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/85603
	* gfortran.dg/deferred_character_23.f90 : New test.

From-SVN: r264502

From-SVN: r264500

2018-09-21  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/87135
	* src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
	Use __builtin_floor to compute _M_next_resize.
	* testsuite/23_containers/unordered_set/hash_policy/71181.cc: Adapt.
	* testsuite/23_containers/unordered_set/hash_policy/prime_rehash.cc:
	Adapt.

From-SVN: r264494

	* gimple-ssa-evrp.c (evrp_dom_walker::cleanup): Call
	vr_values::cleanup_edges_and_switches.
	* tree-vrp.c (to_remove_edges, to_update_switch_stmts): Moved into
	vr_values class.
	(identify_jump_threads): Remove EDGE_IGNORE handling.
	(execute_vrp): Move handling of to_remove_edges and
	to_update_switch_stmts into vr_values class member functions.
	* tree-vrp.h (switch_update, to_remove_edges): Remove declarations.
	(to_update_switch_stmts): Likewise.
	* vr-values.c: Include cfghooks.h.
	(vr_values::vr_values): Initialize to_remove_edges and
	to_update_switch_stmts.
	(vr_values::~vr_values): Verify to_remove_edges and
	to_update_switch_stmts are empty.
	(vr_values::simplify_switch_using_ranges): Set EDGE_IGNORE as needed.
	(vr_values::cleanup_edges_and_switches): New member function.
	* vr-values.h (vr_values): Add cleanup_edges_and_switches member
	function.  Add new data members.

	* gcc.dg/tree-ssa/vrp113.c: Disable EVRP.
	* gcc.dg/tree-ssa/vrp120.c: New test.

From-SVN: r264491

	PR middle-end/81035
	* doc/extend.texi (Common Function Attributes): Mention that
	noreturn suppresses tail call optimization.

From-SVN: r264490

	* constexpr.c (maybe_constant_init_1): Pass false for strict down to
	cxx_eval_outermost_constant_expr.

	* g++.dg/cpp1y/func_constexpr2.C: New test.

From-SVN: r264489

When producing error and warning messages, libgfortran writes a
message by using many system calls.  By using vectored writes (the
POSIX writev function) when available and feasible to use without
major surgery, we reduce the chance that output gets intermingled with
other output to stderr.

In practice, this is done by introducing a new function estr_writev in
addition to the existing estr_write.  In order to use this, the old
st_vprintf is removed, replaced by direct calls of vsnprintf, allowing
more message batching.

Regtested on x86_64-pc-linux-gnu.

libgfortran/ChangeLog:

2018-09-21  Janne Blomqvist  <jb@gcc.gnu.org>

	* config.h.in: Regenerated.
	* configure: Regenerated.
	* configure.ac: Check for writev and sys/uio.h.
	* libgfortran.h: Include sys/uio.h.
	(st_vprintf): Remove prototype.
	(struct iovec): Define if not available.
	(estr_writev): New prototype.
	* runtime/backtrace.c (error_callback): Use estr_writev.
	* runtime/error.c (ST_VPRINTF_SIZE): Remove.
	(estr_writev): New function.
	(st_vprintf): Remove.
	(gf_vsnprintf): New function.
	(ST_ERRBUF_SIZE): New macro.
	(st_printf): Use vsnprintf.
	(os_error): Use estr_writev.
	(runtime_error): Use vsnprintf and estr_writev.
	(runtime_error_at): Likewise.
	(runtime_warning_at): Likewise.
	(internal_error): Use estr_writev.
	(generate_error_common): Likewise.
	(generate_warning): Likewise.
	(notify_std): Likewise.
	* runtime/pause.c (pause_string): Likewise.
	* runtime/stop.c (report_exception): Likewise.
	(stop_string): Likewise.
	(error_stop_string): Likewise.

From-SVN: r264487

2018-09-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/77325
	* trans-array.c (gfc_alloc_allocatable_for_assignment): If the
	rhs has a charlen expression, convert that and use it.
	* trans-expr.c (gfc_trans_assignment_1): The rse.pre for the
	assignment of deferred character array vars to a realocatable
	lhs should not be added to the exterior block since vector
	indices, for example, generate temporaries indexed within the
	loop.

2018-09-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/77325
	* gfortran.dg/deferred_character_22.f90 : New test.

From-SVN: r264486

2018-09-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87359
	* trans-stmt.c (gfc_trans_allocate): Don't deallocate alloc
	components if must_finalize is set for expr3.

2018-09-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/87359
	* gfortran.dg/finalize_33.f90 : New test.

From-SVN: r264485

From-SVN: r264484

Remove the hypot-long-double.cc file that used dg-xfail-run-if and
simply use the lower tolerance for double if long double is not larger
than double.

	* testsuite/26_numerics/headers/cmath/hypot-long-double.cc: Remove.
	* testsuite/26_numerics/headers/cmath/hypot.cc: Restore test for
	long double unconditionally, but use lower tolerance when
	sizeof(long double) == sizeof(double).

From-SVN: r264483