rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Add OPTION_MASK_PCREL.

2019-05-22  Bill Schmidt  <wschmidt@linux.ibm.com>
    Michael Meissner  <meissner@linux.ibm.com>
    Segher Boessenkool  <segher@kernel.crashing.org>

* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Add
OPTION_MASK_PCREL.
(POWERPC_MASKS): Add OPTION_MASK_PCREL.
* config/rs6000/rs6000-protos.h (rs6000_pcrel_p): New prototype.
(rs6000_fndecl_pcrel_p): Likewise.
* config/rs6000/rs6000.c (rs6000_option_override_internal): Report
error if -mpcrel is requested without -mcpu=future.
(rs6000_opt_masks): Add entry for pcrel.
(rs6000_fndecl_pcrel_p): New function.
(rs6000_pcrel_p): Likewise.
* config/rs6000/rs6000.opt (mpcrel): New option.
* doc/invoke.texi: Document -mpcrel and -mno-pcrel.

Co-Authored-By: Michael Meissner <meissner@linux.ibm.com>
Co-Authored-By: Segher Boessenkool <segher@kernel.crashing.org>
From-SVN: r271575

From what I understand of the libstdc++/83237 thread at
<https://gcc.gnu.org/ml/gcc-patches/2017-12/msg00573.html>, the
high numbers are not arbitrary, so it seems wrong to try
lowering them, or we'd just waste cycles testing nothing, or
worse, ending up with a bogus error indication.  Better to just
plain disable this part of the test for simulator targets; I
assume the results should be the same on any IEEE-float target,
i.e. no target-specific things going on here that'd raise a need
to cover it everywhere.

With this part of the test disabled, I saw the test finishing in
(time) "124.74s user" where it was before "1120.26s user"
running the cris-elf-run simulator on a "i7-4770K CPU @ 3.50GHz"
host.  Most certainly that indidates that the remainder of the
test is still too much for *some* host+simulator combos, but I'm
happy with the runtime lowered to 1/5 of the timeout (10
minutes) on this particular combination, and I'd think this
fixes timeouts for many other simulator combos too.

This construct (disabling or lowering limits for simulators) is
used elsewhere in the libstdc++ test-suite and in particular the
SIMULATOR_TEST macro is used in the testsuite machinery (though
AFAICT not in testDiscreteDist).

        * testsuite/26_numerics/random/poisson_distribution/operators/values.cc:
        Don't run the libstdc++/83237 part on simulator targets.

From-SVN: r271574

fmt_f_default_field_width_1.f90: Hide REAL(16) behind __GFC_REAL_16__.

2019-05-23  Mark Eggleston  <mark.eggleston@codethink.com>

* gfortran.dg/fmt_f_default_field_width_1.f90: Hide REAL(16) behind
__GFC_REAL_16__.  Add -cpp to dg-options.
* gfortran.dg/fmt_f_default_field_width_2.f90: Ditto.
* gfortran.dg/fmt_f_default_field_width_3.f90: Ditto.
* gfortran.dg/fmt_g_default_field_width_1.f90: Ditto.
* gfortran.dg/fmt_g_default_field_width_2.f90: Ditto.
* gfortran.dg/fmt_g_default_field_width_3.f90: Ditto.

From-SVN: r271573

re PR tree-optimization/90576 (SPEC CPU2006 450.soplex miscompiled with -Os -flto after r271413)

PR tree-optimization/90576
* tree-ssa-alias.c (compare_sizes): Remove dead calls to
poly_int_tree_p.
(aliasing_component_refs_p): Fix three way size compare conditional;
give up earlier in case we can not decide on equivalence.

Co-Authored-By: Martin Liska <mliska@suse.cz>
From-SVN: r271572

Add missing feature test macro to C++17 status table

* doc/xml/manual/status_cxx2017.xml: Add feature test macro for
P0040R3.
* doc/html/*: Regenerate.

From-SVN: r271571

Add infrastructure to support -mcpu=future to represent a future
architecture level, as yet unnamed.

[gcc]

2019-05-22  Bill Schmidt  <wschmidt@linux.ibm.com>
    Michael Meissner  <meissner@linux.ibm.com>
    Segher Boessenkool  <segher@kernel.crashing.org>

* config.gcc: Add future cpu.
* config/rs6000/driver-rs6000.c (asm_names): Add future cpu.
* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): New
#define.
(POWERPC_MASKS): Add OPTION_MASK_FUTURE.
(RS6000_CPU): New instantiation for future cpu.
* config/rs6000/rs6000-opts.h (enum processor_type): Add
PROCESSOR_FUTURE.
* config/rs6000/rs6000-string.c (expand_compare_loop): Treat
PROCESSOR_FUTURE like PROCESSOR_POWER9 for now.
* config/rs6000/rs6000-tables.opt: Regenerate.
* config/rs6000/rs6000.c (rs6000_option_override_internal): Treat
PROCESSOR_FUTURE similarly to PROCESSOR_POWER9 for now.
(rs6000_machine_from_flags): Handle future cpu.
(rs6000_reassociation_width): Treat PROCESSOR_FUTURE like
PROCESSOR_POWER9 for now.
(rs6000_adjust_cost): Likewise.
(rs6000_issue_rate): Likewise.
(rs6000_register_move_cost): Likewise.
(rs6000_opt_mask): Add entry for future.
* config/rs6000/rs6000.h (ASM_CPU_SPEC): Add future cpu.
(MASK_FUTURE): New #define.
* config/rs6000/rs6000.md (define_attr "cpu"): Add future cpu.
* config/rs6000/rs6000.opt (mfuture): New target option.
* doc/invoke.texi (mcpu): Add future cpu.

[gcc/testsuite]

2019-05-22  Bill Schmidt  <wschmidt@linux.ibm.com>

* gcc.target/powerpc/cpu-future.c: New test.

Co-Authored-By: Michael Meissner <meissner@linux.ibm.com>
Co-Authored-By: Segher Boessenkool <segher@kernel.crashing.org>
From-SVN: r271567

Make any_cast compare typeinfo as well as function pointers

It's possible for the function pointer comparison to fail even though
the type is correct, because the function could be defined multiple
times with different addresses when shared libraries are in use.

Retain the function pointer check for the common case where the check
succeeds, but compare typeinfo (if RTTI is enabled) if the first check
fails.

* include/experimental/any (__any_caster): Use RTTI if comparing
addresses fails, to support non-unique addresses in shared libraries.
* include/std/any (__any_caster): Likewise.

From-SVN: r271557

PR libstdc++/90220 fix experimental::any_cast for non-object types

This corresponds to the fixes done for std::any_cast, but has to be done
without if-constexpr. The dummy specialization of _Manager_internal<_Op>
is used to avoid instantiating the real _Manager_internal<T>::_S_manage
function just to compare its address.

PR libstdc++/90220
* include/experimental/any (__any_caster): Constrain to only be
callable for object types. Use remove_cv_t instead of decay_t.
If the type decays or isn't copy constructible, compare the manager
function to a dummy specialization.
(__any_caster): Add overload constrained for non-object types.
(any::_Manager_internal<_Op>): Add dummy specialization.
* testsuite/experimental/any/misc/any_cast.cc: Test function types
and array types.

From-SVN: r271556

Do not use tree_to_wide_ref that point to a temporary (PR c++/90587).

2019-05-23  Martin Liska  <mliska@suse.cz>

PR c++/90587
* tree-ssa-uninit.c (value_sat_pred_p): The result of &
operation points to a temporary (pointed via tree_to_wide_ref)
that is out of scope after the &.

From-SVN: r271555

PR c++/90592 add missing word "scope" to __func__ docs

PR c++/90592
* doc/extend.texi (Function Names): Add missing word.

From-SVN: r271554

re PR tree-optimization/88440 (size optimization of memcpy-like code)

2019-05-23  Richard Biener  <rguenther@suse.de>

PR tree-optimization/88440
* opts.c (default_options_table): Enable -ftree-loop-distribute-patterns
at -O[2s]+.
* tree-loop-distribution.c (generate_memset_builtin): Fold the
generated call.
(generate_memcpy_builtin): Likewise.
(distribute_loop): Pass in whether to only distribute patterns.
(prepare_perfect_loop_nest): Also allow size optimization.
(pass_loop_distribution::execute): When optimizing a loop
nest for size allow pattern replacement.

* gcc.dg/tree-ssa/ldist-37.c: New testcase.
* gcc.dg/tree-ssa/ldist-38.c: Likewise.
* gcc.dg/vect/vect.exp: Add -fno-tree-loop-distribute-patterns.
* gcc.dg/tree-ssa/ldist-37.c: Adjust.
* gcc.dg/tree-ssa/ldist-38.c: Likewise.
* g++.dg/tree-ssa/pr78847.C: Likewise.
* gcc.dg/autopar/pr39500-1.c: Likewise.
* gcc.dg/autopar/reduc-1char.c: Likewise.
* gcc.dg/autopar/reduc-7.c: Likewise.
* gcc.dg/tree-ssa/ivopts-lt-2.c: Likewise.
* gcc.dg/tree-ssa/ivopts-lt.c: Likewise.
* gcc.dg/tree-ssa/predcom-dse-1.c: Likewise.
* gcc.dg/tree-ssa/predcom-dse-2.c: Likewise.
* gcc.dg/tree-ssa/predcom-dse-3.c: Likewise.
* gcc.dg/tree-ssa/predcom-dse-4.c: Likewise.
* gcc.dg/tree-ssa/prefetch-7.c: Likewise.
* gcc.dg/tree-ssa/prefetch-8.c: Likewise.
* gcc.dg/tree-ssa/prefetch-9.c: Likewise.
* gcc.dg/tree-ssa/scev-11.c: Likewise.
* gcc.dg/vect/costmodel/i386/costmodel-vect-31.c: Likewise.
* gcc.dg/vect/costmodel/i386/costmodel-vect-33.c: Likewise.
* gcc.dg/vect/costmodel/x86_64/costmodel-vect-31.c: Likewise.
* gcc.dg/vect/costmodel/x86_64/costmodel-vect-33.c: Likewise.
* gcc.target/i386/pr30970.c: Likewise.
* gcc.target/i386/vect-double-1.c: Likewise.
* gcc.target/i386/vect-double-2.c: Likewise.
* gcc.dg/tree-ssa/gen-vect-2.c: Likewise.
* gcc.dg/tree-ssa/gen-vect-26.c: Likewise.
* gcc.dg/tree-ssa/gen-vect-28.c: Likewise.
* gcc.dg/tree-ssa/gen-vect-32.c: Likewise.
* gfortran.dg/vect/vect-5.f90: Likewise.
* gfortran.dg/vect/vect-8.f90: Likewise.

From-SVN: r271553

re PR target/90568 (stack protector should use cmp or sub, not xor, to allow macro-fusion on x86)

PR target/90568
* config/i386/i386.md (stack_protect_test_<mode>): Use sub instead
of xor.

From-SVN: r271552

* c-ada-spec.c (compare_node): Compare the DECL_UIDs as a last resort.

From-SVN: r271549

Do not instrument static target_expr for use-after-scope (PR sanitizer/90570).

2019-05-23  Martin Liska  <mliska@suse.cz>

PR sanitizer/90570
* gimplify.c (gimplify_target_expr): Skip TREE_STATIC target
expression similarly to gimplify_decl_expr.
2019-05-23  Martin Liska  <mliska@suse.cz>

PR sanitizer/90570
* g++.dg/asan/pr90570.C: New test.

From-SVN: r271548

* gnat.dg/opt78.ad[sb]: New test.

From-SVN: r271545

x86, testsuite - update fuse-caller-save tests.

These tests had started to XPASS on pic targets where
the codegen is now as expected.

gcc/testsuite/

2019-05-23  Iain Sandoe  <iain@sandoe.co.uk>

PR rtl-optimisation/64895
* gcc.target/i386/fuse-caller-save-rec.c: Remove XFAILs.
* gcc.target/i386/fuse-caller-save.c: Likewise.
* gcc.target/i386/fuse-caller-save-xmm.c: Adjust tests for
PIC cases, remove XFAILs.

From-SVN: r271544

Add whitespace between operator and operand

* cp-tree.h (CP_AGGREGATE_TYPE_P): Fix whitespace.

From-SVN: r271543

Remove conflict marker from ChangeLog

From-SVN: r271542

Remove resolved TODO comment

* init.c (std_placement_new_fn_p): Remove outdated TODO comment that
was resolved by r254694.

From-SVN: r271541

[PR90510] Adjust 'brig.dg/test/gimple/packed.hsail'

... for r271463 "Fix PR90510, VEC_PERM -> BIT_INSERT folding".

gcc/testsuite/
PR middle-end/90510
* brig.dg/test/gimple/packed.hsail: Adjust.

From-SVN: r271540

cse.c (cse_dump_path): s/dump_file/f.

2019-05-23  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* cse.c (cse_dump_path): s/dump_file/f.

From-SVN: r271539

* g++.dg/cpp2a/is-constant-evaluated8.C: New test.

From-SVN: r271538

There was a regression for gfortran.dg/fmt_en.f90 for cris-elf that on...

There was a regression for gfortran.dg/fmt_en.f90 for cris-elf
that on inspection was due to it having acquired a truncation
call through the runtime.  I updated that and the new tests that
had "Fortran runtime error: required ftruncate or chsize support
not present" messages in gfortran.log, ran past cris-elf and
committed as obvious.  See also
<https://gcc.gnu.org/ml/gcc-patches/2008-05/msg00975.html> from
which I copy-pasted most of this message.  (Yep, 11 years ago.)

gcc/testsuite:
* gfortran.dg/dec_io_1.f90, gfortran.dg/dtio_1.f90,
gfortran.dg/dtio_12.f90, gfortran.dg/fmt_en.f90,
gfortran.dg/namelist_89.f90: Gate test on effective_target
fd_truncate.

From-SVN: r271536

Bulletproof -fdiagnostics-format=json against bad locations (PR c++/90462)

PR c++/90462 reports an ICE with -fdiagnostics-format=json when
attempting to serialize a malformed location to JSON.

The compound location_t in question has meaningful "caret" and "start"
locations, but has UNKNOWN_LOCATION for its "finish" location,
leading to a NULL pointer dereference when attempting to build a JSON
string for the filename.

This patch bulletproofs the JSON output so that attempts to write
a JSON object for a location with a NULL file will lead to an object
with no "file" key, and attempts to write a compound location with
UNKNOWN_LOCATION for its start or finish will lead to the corresponding
JSON child object being omitted.

This patch also adds a json::object::get member function, for self-testing
the above.

gcc/ChangeLog:
PR c++/90462
* diagnostic-format-json.cc: Include "selftest.h".
(json_from_expanded_location): Only add "file" key for non-NULL
file strings.
(json_from_location_range): Don't add "start" and "finish"
children if they are UNKNOWN_LOCATION.
(selftest::test_unknown_location): New selftest.
(selftest::test_bad_endpoints): New selftest.
(selftest::diagnostic_format_json_cc_tests): New function.
* json.cc (json::object::get): New function.
(selftest::test_object_get): New selftest.
(selftest::json_cc_tests): Call it.
* json.h (json::object::get): New decl.
* selftest-run-tests.c (selftest::run_tests): Call
selftest::diagnostic_format_json_cc_tests.
* selftest.h (selftest::diagnostic_format_json_cc_tests): New
decl.

gcc/testsuite/ChangeLog:
PR c++/90462
* g++.dg/pr90462.C: New test.

From-SVN: r271535

Daily bump.

From-SVN: r271534

udlit-char-template-neg.C: Expect the error on a different line.

* g++.dg/cpp1y/udlit-char-template-neg.C: Expect the error on a
different line.  Check the column number too.

From-SVN: r271530

PR libstdc++/90557 fix path assignment that alters source

PR libstdc++/90557
* src/c++17/fs_path.cc (path::_List::operator=(const _List&)): Fix
reversed arguments to uninitialized_copy_n.
* testsuite/27_io/filesystem/path/assign/copy.cc: Check that source
is unchanged by copy assignment.
* testsuite/util/testsuite_fs.h (compare_paths): Use std::equal to
compare path components.

From-SVN: r271527

Add support for constructors and destuctors on GCN

2019-05-22  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <amd@codesourcery.com>

gcc/
* config.gcc (gcc_cv_initfini_array): Set for AMD GCN.
* config/gcn/gcn-run.c (init_array_kernel, fini_array_kernel): New.
(kernel): Rename to...
(main_kernel): ... this.
(load_image): Load _init_array and _fini_array kernels.
(run): Add argument for kernel to run.
(main): Run init_array_kernel before main_kernel, and
fini_array_kernel after.
* config/gcn/gcn.c (gcn_handle_amdgpu_hsa_kernel_attribute): Allow
amdgpu_hsa_kernel attribute on functions.
(gcn_disable_constructors): Delete.
(TARGET_ASM_CONSTRUCTOR, TARGET_ASM_DESTRUCTOR): Delete.
* config/gcn/crt0.c (size_t): Define.
(_init_array, _fini_array): New.
(__preinit_array_start, __preinit_array_end,
__init_array_start, __init_array_end,
__fini_array_start, __fini_array_end): Declare weak references.

Co-Authored-By: Andrew Stubbs <ams@codesourcery.com>
From-SVN: r271526

Fix trampoline execution failures on GCN5.

2019-05-22  Andrew Stubbs  <ams@codesourcery.com>

gcc/
* config/gcn/gcn.c (gcn_trampoline_init): Call "sorry" on GCN5.

From-SVN: r271525

gimplify.c (gimplify_cond_expr): Don't check TREE_ADDRESSABLE.

* gimplify.c (gimplify_cond_expr): Don't check TREE_ADDRESSABLE.

The front end shouldn't produce a GENERIC COND_EXPR of TREE_ADDRESSABLE
type.

From-SVN: r271524

PR c++/20408 - unnecessary code for empty struct.

Here initializing the argument from a TARGET_EXPR isn't an empty class
copy even though the type is !TREE_ADDRESSABLE, so we should check
simple_empty_class_p.

* call.c (build_call_a): Use simple_empty_class_p.

From-SVN: r271523

PR libstdc++/77691 fix resource_adaptor failures due to max_align_t bugs

Remove the hardcoded whitelist of allocators expected to return memory
aligned to alignof(max_align_t), because that doesn't work when the
platform's malloc() and GCC's max_align_t do not agree what the largest
fundamental alignment is. It's also sub-optimal for user-defined
allocators that return memory suitable for any fundamental alignment.

Instead use a hardcoded list of alignments that are definitely supported
by the platform malloc, and use a copy of the allocator rebound to a POD
type with the requested alignment. Only allocate an oversized
buffer to use with std::align for alignments larger than any of the
hardcoded values.

For 32-bit Solaris x86 do not include alignof(max_align_t) in the
hardcoded values.

PR libstdc++/77691
* include/experimental/memory_resource: Add system header pragma.
(__resource_adaptor_common::__guaranteed_alignment): Remove.
(__resource_adaptor_common::_Types)
(__resource_adaptor_common::__new_list)
(__resource_adaptor_common::_New_list)
(__resource_adaptor_common::_Alignments)
(__resource_adaptor_common::_Fund_align_types): New utilities for
creating a list of types with fundamental alignments.
(__resource_adaptor_imp::do_allocate): Call new _M_allocate function.
(__resource_adaptor_imp::do_deallocate): Call new _M_deallocate
function.
(__resource_adaptor_imp::_M_allocate): New function that first tries
to use an allocator rebound to a type with a fundamental alignment.
(__resource_adaptor_imp::_M_deallocate): Likewise for deallocation.
* testsuite/experimental/memory_resource/new_delete_resource.cc:
Adjust expected allocation sizes.
* testsuite/experimental/memory_resource/resource_adaptor.cc: Remove
xfail.

From-SVN: r271522

PR c++/86485 - simple_empty_class_p

Yet another tweak that would have fixed this bug: we should treat INIT_EXPR
and MODIFY_EXPR differently for determining whether this is a simple empty
class copy, since a TARGET_EXPR on the RHS is direct initialization if
INIT_EXPR but copy if MODIFY_EXPR.

* cp-gimplify.c (simple_empty_class_p): Also true for MODIFY_EXPR.

From-SVN: r271521

vect-signbitf.c (dg-final): Improve scan-assembler-not string to avoid false matching on 32bit targets.

* gcc.target/i386/vect-signbitf.c (dg-final): Improve
scan-assembler-not string to avoid false matching on 32bit targets.

From-SVN: r271520

x86: Don't allocate stack frame nor align stack if not needed

get_frame_size () returns used stack slots during compilation, which
may be optimized out later.  This patch does the followings:

1. Add stack_frame_required to machine_function to indicate that the
function needs a stack frame.
2. Change ix86_find_max_used_stack_alignment to set stack_frame_required.
3. Always call ix86_find_max_used_stack_alignment to check if stack
frame is needed.

Tested on i686 and x86-64 with

--with-arch=native --with-cpu=native

Tested on AVX512 machine configured with

--with-arch=native --with-cpu=native

gcc/

PR target/88483
* config/i386/i386-options.c (ix86_init_machine_status): Set
stack_frame_required to true.
* config/i386/i386.c (ix86_get_frame_size): New function.
(ix86_frame_pointer_required): Replace get_frame_size with
ix86_get_frame_size.
(ix86_compute_frame_layout): Likewise.
(ix86_find_max_used_stack_alignment): Changed to void.  Set
stack_frame_required.
(ix86_finalize_stack_frame_flags): Always call
ix86_find_max_used_stack_alignment.  Replace get_frame_size with
ix86_get_frame_size.
* config/i386/i386.h (machine_function): Add stack_frame_required.

gcc/testsuite/

PR target/88483
* gcc.target/i386/stackalign/pr88483-1.c: New test.
* gcc.target/i386/stackalign/pr88483-2.c: Likewise.

From-SVN: r271517

sse.md (sse_cvtpi2ps): Use TARGET_MMX in insn condition.

* config/i386/sse.md (sse_cvtpi2ps): Use TARGET_MMX in insn condition.

From-SVN: r271515

[aarch64] Introduce flags for SVE2.

This patch adds support in the compiler for the architecture feature
flags that binutils will use to enable/disable the new "Future
Architecture Technologies" feature Scalable Vector Extension V2 (SVE2)
announced at Linaro Connect this week.

The "sve2" extension that enables the core sve2 instructions.
This also enables the sve extension, since sve is a requirement of sve2.

Extra optional sve2 features are the bitperm, sm4, aes, and sha3 extensions.
These are all given extra feature flags, "bitperm", "sve2-sm4",
"sve2-aes", and "sve2-sha3" respectively.
The sm4, aes, and sha3 extensions are explicitly marked as sve2
extensions to distinguish them from the corresponding NEON extensions.

When introducing macros to denote these new features we have gone past
what a 32 bit value can represent which means we need to change the type
of those variables working with these feature flags to ensure they use
64 bit quantities.

Tested with bootstrap on aarch64-none-linux-gnu and manually seeing that
-march=armv8-a+typo prints out the expected flags while using the new
feature flags does not complain about a missing flag (until reaching the
assembler).

gcc/ChangeLog:

2019-05-22  Matthew Malcomson  <matthew.malcomson@arm.com>

* common/config/aarch64/aarch64-common.c
(struct aarch64_option_extension, struct processor_name_to_arch,
struct arch_to_arch_name, aarch64_parse_extension, opt_ext_cmp,
aarch64_contains_opt,
aarch64_get_extension_string_for_isa_flags): Change type of
variables storing flags to uint64_t.
* config/aarch64/aarch64-option-extensions.def (sve2, sve2-sm4,
sve2-aes, sve2-sha3, bitperm): New optional SVE2 extension flags.
* config/aarch64/aarch64.c (struct processor,
aarch64_parse_arch, aarch64_parse_cpu, aarch64_validate_mcpu,
aarch64_validate_march, aarch64_override_options,
aarch64_option_print, aarch64_handle_attr_isa_flags,
aarch64_declare_function_name, aarch64_start_file): Make flag
variables uint64_t.
* config/aarch64/aarch64.h (AARCH64_FL_SVE2, AARCH64_FL_SVE2_AES,
AARCH64_FL_SVE2_SM4, AARCH64_FL_SVE2_SHA3,
AARCH64_FL_SVE2_BITPERM): New macro feature flags.
* config/aarch64/aarch64.opt (aarch64_isa_flags): Make uint64_t.
* config/aarch64/driver-aarch64.c
(struct aarch64_arch_extension, struct aarch64_core_data,
struct aarch64_arch_driver_info, host_detect_local_cpu): Make
flag variables uint64_t.
* doc/invoke.texi: Add documentation for new arguments.

From-SVN: r271514

Fix new coarray failures.

2019-05-22  Andrew Stubbs  <ams@codesourcery.com>

gcc/testsuite/
* gfortran.dg/coarray_lock_7.f90: Fix output patterns.

From-SVN: r271513

Fix fortran size_type_node parameter passing.

2019-05-22  Andrew Stubbs  <ams@codesourcery.com>

gcc/fortran/
* trans-stmt.c (gfc_trans_critical): Use size_type_node for
gfor_fndecl_caf_lock and gfor_fndecl_caf_unlock calls.
(gfc_trans_allocate): Use size_type_node for gfor_fndecl_caf_sync_all
call.

From-SVN: r271512

fortran/89100: Default widths with -fdec-format-defaults

gcc/fortran ChangeLog:

2019-05-22  Jeff Law  <law@redhat.com>
            Mark Eggleston  <mark.eggleston@codethink.com>

        PR fortran/89100
        * gfortran.texi: Add Default widths for F, G and I format
        descriptors to Extensions section.
        * invoke.texi: Add -fdec-format-defaults
        * io.c (check_format): Use default widths for i, f and g when
        flag_dec_format_defaults is enabled.
        * lang.opt: Add new option.
        * options.c (set_dec_flags): Add SET_BITFLAG for
        flag_dec_format_defaults.

gcc/testsuite ChangeLog:

2019-05-22  Mark Eggleston  <mark.eggleston@codethink.com>

        PR fortran/89100
        * gfortran.dg/fmt_f_default_field_width_1.f90: New test.
        * gfortran.dg/fmt_f_default_field_width_2.f90: New test.
        * gfortran.dg/fmt_f_default_field_width_3.f90: New test.
        * gfortran.dg/fmt_g_default_field_width_1.f90: New test.
        * gfortran.dg/fmt_g_default_field_width_2.f90: New test.
        * gfortran.dg/fmt_g_default_field_width_3.f90: New test.
        * gfortran.dg/fmt_i_default_field_width_1.f90: New test.
        * gfortran.dg/fmt_i_default_field_width_2.f90: New test.
        * gfortran.dg/fmt_i_default_field_width_3.f90: New test.

libgfortran ChangeLog:

2019-05-22  Jeff Law  <law@redhat.com>

        PR fortran/89100
        * io/format.c (parse_format_list): set default width when the
        IOPARM_DT_DEC_EXT flag is set for i, f and g.
        * io/io.h: add default_width_for_integer, default_width_for_float
        and default_precision_for_float.
        * io/write.c (write_boz): extra parameter giving length of data
        corresponding to the type's kind.
        (write_b): pass data length as extra parameter in calls to
        write_boz.
        (write_o): pass data length as extra parameter in calls to
        write_boz.
        (write_z): pass data length as extra parameter in calls to
        write_boz.
        (size_from_kind): also set size is default width is set.
        * io/write_float.def (build_float_string): new paramter inserted
        before result parameter. If default width use values passed
        instead of the values in fnode.
        (FORMAT_FLOAT): macro modified to check for default width and
        calls to build_float_string to pass in default width.
        (get_float_string): set width and precision to defaults when
        needed.

From-SVN: r271511

alias.c (ao_ref_from_mem): Move stack-slot sharing rewrite ...

2019-05-22  Richard Biener  <rguenther@suse.de>

* alias.c (ao_ref_from_mem): Move stack-slot sharing
rewrite ...
* emit-rtl.c (set_mem_attributes_minus_bitpos): ... here.

From-SVN: r271510

Do not use quotes in tests (PR testsuite/90564).

2019-05-22  Martin Liska  <mliska@suse.cz>

PR testsuite/90564
* gcc.target/powerpc/pr80315-1.c: Remove usage of quotes.
* gcc.target/powerpc/pr80315-2.c: Likewise.
* gcc.target/powerpc/pr80315-3.c: Likewise.
* gcc.target/powerpc/pr80315-4.c: Likewise.

From-SVN: r271509

Fix wrong escaping of brackets (PR testsuite/90564).

2019-05-22  Martin Liska  <mliska@suse.cz>

PR testsuite/90564
* gcc.target/powerpc/pr80315-1.c: Add one extra \ to escape
brackets.
* gcc.target/powerpc/pr80315-2.c: Likewise.
* gcc.target/powerpc/pr80315-3.c: Likewise.
* gcc.target/powerpc/pr80315-4.c: Likewise.

From-SVN: r271508

decltype-pr66548.C: Reinstate correct version.

2019-05-22  Paolo Carlini  <paolo.carlini@oracle.com>

      * g++.dg/cpp0x/decltype-pr66548.C: Reinstate correct version.

From-SVN: r271507

decltype-pr66548.C: Remove, mistakenly added.

2019-05-22  Paolo Carlini  <paolo.carlini@oracle.com>

      * g++.dg/cpp0x/decltype-pr66548.C: Remove, mistakenly added.

From-SVN: r271506

darwin, testsuite fix PR27221

The test can't succeed on 32b powerpc Darwin since the
ABI demands a different result to the tested one.

2019-05-22  Iain Sandoe  <iain@sandoe.co.uk>

PR testsuite/27221
* g++.dg/ext/alignof2.C: XFAIL for 32bit Darwin.

From-SVN: r271505

Strip target_clones in copy attribute (PR lto/90500).

2019-05-22  Martin Liska  <mliska@suse.cz>

PR lto/90500
* c-attribs.c (handle_copy_attribute): Do not copy
target_clones attribute.
2019-05-22  Martin Liska  <mliska@suse.cz>

PR lto/90500
* gcc.target/i386/pr90500-1.c: Make the test-case valid
now.
2019-05-22  Martin Liska  <mliska@suse.cz>

PR lto/90500
* doc/extend.texi: Document the change.

From-SVN: r271504

re PR tree-optimization/90450 (Hash function in gather_mem_refs_stmt does not match with mem_ref_hasher::equal)

2019-05-22  Richard Biener  <rguenther@suse.de>

PR tree-optimization/90450
* tree-ssa-loop-im.c (struct im_mem_ref): Add ref_decomposed.
(mem_ref_hasher::equal): Check it.
(mem_ref_alloc): Initialize it.
(gather_mem_refs_stmt): Set it.

From-SVN: r271503

gimple-fold.c (arith_code_with_undefined_signed_overflow): Add ABS_EXPR.

2019-05-22  Richard Biener  <rguenther@suse.de>

* gimple-fold.c (arith_code_with_undefined_signed_overflow):
Add ABS_EXPR.
(rewrite_to_defined_overflow): Handle rewriting ABS_EXPR
as ABSU_EXPR.

* gcc.dg/tree-ssa/ssa-lim-13.c: New testcase.

From-SVN: r271501

[RS6000] Don't pass -many to the assembler

I'd like to remove -many from the options passed by default to the
assembler, on the grounds that a gcc bug in instruction selection (eg.
emitting a power9 insn for -mcpu=power8) is better found at assembly
time than run time.

For now, just do this when --enable-checking or gcc is not a release.

This patch also emits .machine assembler directives for ELF targets
when functions are compiled for different cpus via attributes or
pragmas.  That's necessary when the initial -m<cpu> option passed to
the assembler doesn't enable the superset of all opcodes emitted, as
seen by a failure of gcc.target/powerpc/clone2.c without .machine
when building gcc for power8.

rs6000_machine_from_flags deliberately uses ISA_2_4_MASKS rather than
ISA_2_2_MASKS for power5 because "friz" and other similar instructions
enabled by gcc with TARGET_FPRND are enabled in gas by "-mpower5".
(gas -mpower5 supports power5+ too.)  rs6000-cpus.def puts
OPTION_MASK_FPRND in ISA_2_4_MASKS, so ISA_2_4_MASKS is the one to use
in deciding to pass "-mpower5" to gas.

O3-pr70130.c also failed on an earlier version of this patch (when
only testing one ISA bit to determine .machine).  This is a test for a
power7 vector bug, but on power8 hw check_vect_support_and_set_flags
passes -mpower8-vector which means the test isn't exercising the
original bug exactly.  I reckon that is wrong, and similary for other
vector testcases that ask for a specific cpu.  I've fixed it here by
explicitly passing -mno-power8-vector and similar vector options.

* config/rs6000/rs6000.h (ASM_OPT_ANY): Define.
(ASM_CPU_SPEC): Conditionally add -many.
* config/rs6000/rs6000.c (rs6000_machine): New static var.
(rs6000_machine_from_flags, emit_asm_machine): New functions..
(rs6000_file_start): ..extracted from here, and modified to
test all ISA bits.
(rs6000_output_function_prologue): Emit .machine as necessary.
* testsuite/gcc.target/powerpc/ppc32-abi-dfp-1.c: Don't use
power mnemonics.
* testsuite/gcc.dg/vect/O3-pr70130.c: Disable default options
added by check_vect_support_and_set_flags.
* testsuite/gcc.dg/vect/pr48765.c: Likewise.
* testsuite/gfortran.dg/vect/pr45714-b.f: Likewise.

From-SVN: r271500

re PR middle-end/90553 (Register allocation allocates post-incremented address-load of call to call-clobbered register)

PR middle-end/90553
* gcc.dg/torture/pr90553.c: New test.

From-SVN: r271499

re PR middle-end/90553 (Register allocation allocates post-incremented address-load of call to call-clobbered register)

PR middle-end/90553
* ira-lives.c (process_bb_node_lives): Consider defs
for a call insn to be die before the call, not after.

From-SVN: r271498

In <https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01417.html>...

In <https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01417.html>:
...a change introduced in r94104 where BITS_PER_WORD was chosenperhaps because we expect register-sized writes into this area.

See <https://gcc.gnu.org/ml/gcc-patches/2005-01/msg01564.html>
for the r94104 change.

* function.c (assign_parm_setup_block): Raise alignment of
stacked parameter only for STRICT_ALIGNMENT targets.

From-SVN: r271497

Daily bump.

From-SVN: r271496

parser.c (cp_parser_template_declaration_after_parameters): Use DECL_SOURCE_LOCATION in literal operator template errors.

/cp
2019-05-21  Paolo Carlini  <paolo.carlini@oracle.com>

* parser.c (cp_parser_template_declaration_after_parameters): Use
DECL_SOURCE_LOCATION in literal operator template errors.

/testsuite
2019-05-21  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/cpp0x/udlit-tmpl-arg-neg2.C: Check locations too.
* g++.dg/cpp0x/udlit-tmpl-parms-neg.C: Likewise.

From-SVN: r271492

re PR c++/67184 (Missed optimization with C++11 final specifier)

/cp
2019-05-21  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67184
PR c++/69445
* call.c (build_over_call): Devirtualize when the final overrider
comes from the base.

/testsuite
2019-05-21  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67184
PR c++/69445
* g++.dg/other/final3.C: New.
* g++.dg/other/final4.C: Likewise.
* g++.dg/other/final5.C: Likewise.

From-SVN: r271491

re PR c++/67184 (Missed optimization with C++11 final specifier)

/cp
2019-05-21  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67184
PR c++/69445
* call.c (build_over_call): Devirtualize when the final overrider
comes from the base.

/testsuite
2019-05-21  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67184
PR c++/69445
* g++.dg/other/final3.C: New.
* g++.dg/other/final4.C: Likewise.
* g++.dg/other/final5.C: Likewise.

From-SVN: r271490

LWG 3062 - Unnecessary decay_t in is_execution_policy_v

    * include/pstl/execution_defs.h (__enable_if_execution_policy):
    Use std::__remove_cvref_t when building with GCC.

From-SVN: r271489

rs6000: wz -> d+p7

* config/rs6000/constraints.md (define_register_constraint "wz"):
Delete.
* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
RS6000_CONSTRAINT_wz.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
(rs6000_init_hard_regno_mode_ok): Adjust.
* config/rs6000/rs6000.md: Replace "wz" constraint by "d" with "p7".
* doc/md.texi (Machine Constraints): Adjust.

From-SVN: r271488

rs6000: wl -> d+p6

* config/rs6000/constraints.md (define_register_constraint "wl"):
Delete.
* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
RS6000_CONSTRAINT_wl.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
(rs6000_init_hard_regno_mode_ok): Adjust.
* config/rs6000/rs6000.md: Replace "wl" constraint by "d" with "p6".
* doc/md.texi (Machine Constraints): Adjust.

From-SVN: r271487

rs6000: wm -> wa+p8v

* config/rs6000/constraints.md (define_register_constraint "wm"):
Delete.
* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
RS6000_CONSTRAINT_wm.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
(rs6000_init_hard_regno_mode_ok): Adjust.
* config/rs6000/vsx.md: Replace "wm" constraint by "wa" with "p8v".
* doc/md.texi (Machine Constraints): Adjust.

From-SVN: r271486

rs6000: wk -> ws+p8v

* config/rs6000/constraints.md (define_register_constraint "wk"):
Delete.
* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
RS6000_CONSTRAINT_wk.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
(rs6000_init_hard_regno_mode_ok): Adjust.
* config/rs6000/rs6000.md: Replace "wk" constraint by "ws" with "p8v".
* doc/md.texi (Machine Constraints): Adjust.

From-SVN: r271485

rs6000: wj -> wi+p8v

Also deletes VS_64dm, it's unused.

* config/rs6000/constraints.md (define_register_constraint "wj"):
Delete.
* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
RS6000_CONSTRAINT_wj.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
(rs6000_init_hard_regno_mode_ok): Adjust.
* config/rs6000/rs6000.md: Replace "wj" constraint by "wi" with "p8v".
(VS_64dm): Delete.
* config/rs6000/vsx.md: Ditto.
* doc/md.texi (Machine Constraints): Adjust.

From-SVN: r271484

rs6000: wh -> d+p8v

This replaces the "wh" constraint by "d", with isa "p8v".

* config/rs6000/constraints.md (define_register_constraint "wh"):
Delete.
* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
RS6000_CONSTRAINT_wh.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
(rs6000_init_hard_regno_mode_ok): Adjust.
* config/rs6000/rs6000.md: Replace "wh" constraint by "wa" with "p8v".
* doc/md.texi (Machine Constraints): Adjust.

From-SVN: r271483

DR 1940 - static_assert in anonymous unions.

* g++.dg/DRs/dr1940.C: New test.

From-SVN: r271482

re PR target/90547 (ICE in gen_lowpart_general, at rtlhooks.c:63)

PR target/90547
* config/i386/i386.md (anddi_1 to andsi_1_zext splitter):
Avoid calling gen_lowpart with CONST operand.

testsuite/ChangeLog:

PR target/90547
* gcc.target/i386/pr90547.c: New test.

From-SVN: r271479

preserve more debug stmts in gimple jump threading

Gimple jump threading does not duplicate forwarder blocks that might
be present before or after the second copied block.  This silently
drops debug binds and markers that might be present in them.  This
patch attempts to preserve them.

For blocks after either copied block, we attempt to append debug stmts
to the copied block, if it does not end with a block-ending stmt.
Failing that, for blocks between both copied blocks, we prepend its
debug stmts to the copy of the second block.

If everything fails, we still drop debug stmts on the floor, though
preexisting code consolidates debug binds in the block that threading
flows into, so only markers are really lost.  We can't do much better
than that without conditional binds and markers, or debug stmts in
edges, or somesuch.

If we append debug stmts to a reusable template block, we copy it
after splitting out the debug stmts, and before putting them back.

for  gcc/ChangeLog

* tree-ssa-threadupdate.c (struct ssa_local_info_t): Add
field template_last_to_copy.
(ssa_create_duplicates): Set it, and use it.  Attempt to
preserve more debug stmts.

From-SVN: r271477

Fix dg-require-* syntax

* gcc.dg/Wattribute-alias.c: Pass emtpy arg to dg-require-ifunc.

* gcc.c-torture/execute/20030125-1.c: Pass emtpy arg to dg-require-weak.

* gcc.dg/torture/ftrapv-2.c: Pass empty arg to dg-require-fork.

* gcc.target/i386/pr84723-1.c: Remove dg-require-ifunc.
* gcc.target/i386/pr84723-2.c: Likewise.
* gcc.target/i386/pr84723-3.c: Likewise.
* gcc.target/i386/pr84723-4.c: Likewise.
* gcc.target/i386/pr84723-5.c: Likewise.

From-SVN: r271476

darwin, testsuite - fix PR 67958

These tests require specific scan-asms in some cases because
of the different codegen for Dawin.  Added some explanations
too.

2019-05-21  Iain Sandoe  <iain@sandoe.co.uk>

PR testsuite/67958
* gcc.target/i386/pr32219-1.c: Adjust scan-asms for Darwin, comment
the differences.
* gcc.target/i386/pr32219-2.c: Likewise.
* gcc.target/i386/pr32219-3.c: Likewise.
* gcc.target/i386/pr32219-4.c: Likewise.
* gcc.target/i386/pr32219-5.c: Likewise.
* gcc.target/i386/pr32219-6.c: Likewise.
* gcc.target/i386/pr32219-7.c: Likewise.
* gcc.target/i386/pr32219-8.c: Likewise.

From-SVN: r271475

darwin, testsuite - fix PR 63891.

This is a testcase failing because one part of the codegen is
(correctly) generating the scan-asm-not signature.

Fixed by altering the build options.

gcc/testsuite/

2019-05-18  Iain Sandoe  <iain@sandoe.co.uk>

PR target/63891
* gcc.dg/darwin-weakimport-3.c: Adjust options and explain
the reasons.

From-SVN: r271474

sse.md (VF1_AVX2): New mode iterator.

* config/i386/sse.md (VF1_AVX2): New mode iterator.
(signbit<mode>2): New expander

testsuite/ChangeLog:

* gcc.target/i386/vect-signbitf.c: New test.

From-SVN: r271473

re PR bootstrap/87338 (gcc 8.2 fails to bootstrap on ia64)

PR bootstrap/87338
* dwarf2out.c (dwarf2out_inline_entry): Use ASM_OUTPUT_DEBUG_LABEL
instead of ASM_GENERATE_INTERNAL_LABEL and ASM_OUTPUT_LABEL.

From-SVN: r271472

[C++ PATCH] Using decls

https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01411.html
* name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
parameter.  Document.
(finish_nonmember_using_decl): Adjust do_nonmember_using_decl
calls.  Remove stray FIXME comment.

From-SVN: r271471

cpuid.h (__cpuid): For 32bit targets...

* config/i386/cpuid.h (__cpuid): For 32bit targets, zero
%ebx and %ecx bafore calling cpuid with leaf 1 or
non-constant leaf argument.

From-SVN: r271469

libfortran/90038: Document new wait=.false. implementation

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

PR libfortran/90038
* intrinsic.texi (EXECUTE_COMMAND_LINE): Explain new
wait=.false. implementation.

From-SVN: r271468

[C++ PATCH] Using decls

https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01396.html
gcc/cp/
* name-lookup.h (struct cp_binding_level): Drop usings field.
(finish_namespace_using_decl, finish_local_using_decl): Replace with ...
(finish_nonmember_using_decl): ... this.
* name-lookup.c (push_using_decl_1, push_using_decl):
(do_nonmember_using_decl): ... here.  Add INSERT_P arg.  Reimplement.
(validate_nonmember_using_decl, finish_namespace_using_decl)
(finish_local_using_decl): Replace with ...
(finish_nonmember_using_decl): ... this.  Drop DECL parm.
* parser.c (cp_parser_using_declaration): Don't do lookup here.
* pt.c (tsubst_expr): Do not do using decl lookup here.

gcc/testsuite/
* g++.dg/lookup/using53.C: Adjust diagnostic.

libcc1/
* libcp1plugin.cc (plugin_add_using_decl): Use
finish_nonmember_using_decl.

From-SVN: r271467

PR libstdc++/90252 fix effective-target check for TBB

PR libstdc++/90252
* testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
Use "additional_flags" to pass -ltbb to v3_target_compile command.
Use check_v3_target_prop_cached to cache the result of the test.

From-SVN: r271466

Fix names of _Lock_policy constants in libstdc++ manual

* doc/xml/manual/shared_ptr.xml: Fix names of lock policy constants.

From-SVN: r271465

PR90545, gcc.target/powerpc/fold-vec-splats-floatdouble.c fails

I figure a tweak to register_move_cost is better than sprinkling ?s
in instruction operand alternatives.

PR target/90545
* config/rs6000/rs6000.c (rs6000_register_move_cost): Increase
power9 direct move cost.
* testsuite/gcc.target/powerpc/fold-vec-splats-floatdouble.c:
Correct comments and rename functions to suit parameters.

From-SVN: r271464

re PR tree-optimization/90510 (Unnecessary permutation)

2019-05-21  Richard Biener  <rguenther@suse.de>

PR middle-end/90510
* fold-const.c (fold_read_from_vector): New function.
* fold-const.h (fold_read_from_vector): Declare.
* match.pd (VEC_PERM_EXPR): Build BIT_INSERT_EXPRs for
single-element insert permutations.  Canonicalize selector
further and fix issue with last commit.

* gcc.target/i386/pr90510.c: New testcase.

From-SVN: r271463

Add missing "" for dg-require-ifunc.

2019-05-21  Martin Liska  <mliska@suse.cz>

* gcc.target/i386/pr90500-1.c: Add missing '""'.
* gcc.target/i386/pr90500-2.c: Likewise.

From-SVN: r271462

Don't split non-critical edges in crited

gcc/ChangeLog:

        * tree-cfg.h (split_critical_edges): Add for_edge_insertion_p
parameter with default value false to declaration.
        (split_edges_for_insertion): New inline function.  Wrapper for
split_critical_edges with for_edge_insertion_p = true.
        * tree-cfg.c (split_critical_edges): Don't split non-critical
edges if for_edge_insertion_p is false.  Fix whitespace.
        * tree-ssa-pre.c (pass_pre::execute): Call
split_edges_for_insertion instead of split_critical_edges.
        * gcc/tree-ssa-tail-merge.c (tail_merge_optimize): Ditto.
        * gcc/tree-ssa-sink.c (pass_sink_code::execute): Ditto.
(pass_data_sink_code): Update function name in the comment.

From-SVN: r271461

tree-ssa-uninit: suppress more spurious warnings

* tree-ssa-uninit.c (value_sat_pred_p): This new function is a wrapper
        around is_value_included_in that knows how to handle BIT_AND_EXPR.
        (is_pred_expr_subset_of): Use the new function.  Handle more cases where
        code1 == EQ_EXPR and where code1 == BIT_AND_EXPR and thus fix some false
        positives.

testsuite/
        * gcc.dg/uninit-28-gimple.c: New test.
        * gcc.dg/uninit-29-gimple.c: New test.
        * gcc.dg/uninit-30-gimple.c: New test.
        * gcc.dg/uninit-31-gimple.c: New test.

From-SVN: r271460

contrib/mklog: Open files in text mode

Due to the python 3 conversion, files should be opened in text mode,
matching stdin/stdout.

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

* mklog: Open files in text mode.

From-SVN: r271459

Enable -O2 for pr90263.c test.

2019-05-21  Martin Liska  <mliska@suse.cz>

* gcc.dg/pr90263.c: Add -O2.

From-SVN: r271458

c-ada-spec.h (enum cpp_operation): Add IS_ASSIGNMENT_OPERATOR.

c-family/
* c-ada-spec.h (enum cpp_operation): Add IS_ASSIGNMENT_OPERATOR.
* c-ada-spec.c (print_assignment_operator): New function.
(dump_ada_declaration) <FUNCTION_DECL>: Call it do dump explicit copy
assignment operators declared as methods and filter out the others.
cp/
* decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.

From-SVN: r271457

Convert contrib/mklog script to Python 3

Upstream will drop support for Python 2.x on January 1, 2020.  This
patch converts the contrib/mklog script to Python 3.  The process for
the conversion was as follows.

- Use the futurize tool (https://python-future.org ) to apply the
  print_with_import, except, and dict transformations.

- Remove the "from __future__ import print_function".

- Change the shebang line to search for python3 in the environment.

- Modify the run() function to return a str instead of bytes.

- Update the copyright year.

contrib/ChangeLog:

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

        * mklog: Convert to Python 3.

From-SVN: r271456

fix diagnostic quoting/spelling in rs6000

2019-05-21  Martin Liska  <mliska@suse.cz>

* config/rs6000/driver-rs6000.c (elf_platform): Do not use
an extra newline.
* config/rs6000/rs6000-c.c (rs6000_pragma_longcal): Wrap pragma in %<%>.
(altivec_resolve_overloaded_builtin): Likewise for vec_lvsl and
vec_lvsr.
* config/rs6000/rs6000.c (rs6000_option_override_internal):
Quote a C type.
(rs6000_function_arg): Likewise.
(rs6000_expand_set_fpscr_drn_builtin): Remove trailing dot.
(rs6000_expand_ternop_builtin): Use interval syntax.
(get_element_number): Likewise.
(altivec_expand_builtin): Likewise.
(rs6000_get_function_versions_dispatcher): Quote target_clones.

Fix test-suite.
2019-05-21  Martin Liska  <mliska@suse.cz>

* gcc.target/powerpc/ppc64-abi-warn-1.c: Wrap a type.
* gcc.target/powerpc/pr80315-1.c: Use new interval format.
* gcc.target/powerpc/pr80315-2.c: Likewise.
* gcc.target/powerpc/pr80315-3.c: Likewise.
* gcc.target/powerpc/pr80315-4.c: Likewise.
* gcc.target/powerpc/warn-lvsl-lvsr.c: Wrap builtin names.

From-SVN: r271455

Move a test-case (PR testsuite/90551).

2019-05-21  Martin Liska  <mliska@suse.cz>

PR testsuite/90551
* pr90263.c: Move from gcc.c-torture/compile
into gcc.dg.

From-SVN: r271454

tbb-backend effective target should check ability to link TBB

    PR libstdc++/90252
    * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
    Changed v3_target_compile check from preprocess to executable.
    Added "-ltbb" to v3_target_compile flags.

From-SVN: r271451

Check TBB version in tbb-backed effective target check

      * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
      Add check for Thread Building Blocks 2018 or later.

From-SVN: r271450

Daily bump.

From-SVN: r271449

re PR testsuite/90503 (gcc.target/i386/pr22076.c FAILs)

PR testsuite/90503
* gcc.target/i386/pr22076.c (dg-options): Add -mno-sse2.
Remove -flax-vector-conversions.
(dg-additional-options): Remove.
(test): Change to void.  Declare m0 and m1 as __m64 and
cast initializer in a proper way.  Do not return result.
(dg-final): Scan for 2 instances of movq.

From-SVN: r271445

* es.po, sv.po: Update.

From-SVN: r271443

re PR testsuite/90503 (gcc.target/i386/pr22076.c FAILs)

PR testsuite/90503
* gcc.target/i386/pr22076.c (dg-options): Add -mno-sse2.

From-SVN: r271442

gfortran.texi: Remove reference to the ASSIGN statement...

* gfortran.texi: Remove reference to the ASSIGN statement, capitalise
complex, state that padding is with spaces and modify the Hollerith
constant examples.

From-SVN: r271441

re PR c++/59813 (tail-call elimination didn't fire for left-shift of char to cout)

PR c++/59813
PR target/90418
* function.h (struct function): Add calls_eh_return member.
* gimplify.c (gimplify_call_expr): Set cfun->calls_eh_return when
gimplifying __builtin_eh_return call.
* tree-inline.c (initialize_cfun): Copy calls_eh_return from src_cfun
to cfun.
(expand_call_inline): Or in src_cfun->calls_eh_return into
dst_cfun->calls_eh_return.
* tree-tailcall.c (suitable_for_tail_call_opt_p): Return false if
cfun->calls_eh_return.
* lto-streamer-in.c (input_struct_function_base): Read calls_eh_return.
* lto-streamer-out.c (output_struct_function_base): Write
calls_eh_return.

From-SVN: r271440

re PR libgomp/90527 (alloc.c:72:7: error: implicit declaration of function ‘posix_memalign’)

PR libgomp/90527
* alloc.c (_GNU_SOURCE): Define.

From-SVN: r271438

Fix test failure due to Networking TS headers using mutexes

Only include the Networking headers for targets with Gthreads, so that
the uses of std::mutex and std::condition_variable don't cause errors.

* testsuite/experimental/names.cc: Only include Networking TS headers
on targets with the necessary Gthreads support.

From-SVN: r271437

CWG 2094 - volatile scalars are trivially copyable.

PR c++/85679
* tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
scalar types.

* g++.dg/ext/is_trivially_constructible1.C: Change the expected result
for volatile int.
* g++.dg/ext/is_trivially_copyable.C: New test.

* testsuite/20_util/is_trivially_copyable/value.cc: Change the expected
result for volatile int.

From-SVN: r271435