* config/i386/darwin.h (TARGET_FPMATH_DEFAULT_P): New define.

From-SVN: r268944

There's a bit of a disconnect between the feature flags that don't test the fpu
and ones that do when the test itself also forces an architecture.  The forcing
of the architecture would change the defaults and without explicitly giving the
correct fpu again the test would fail.

I don't see a good way to solve this problem, really the feature tests should
ideally contain the extra options the test adds too, but for this specific case
it can be solved by always testing the fpu explicitly.

Committed under the GCC obvious

gcc/testsuite/ChangeLog:

	* lib/target-supports.exp
	(check_effective_target_arm_neon_softfp_fp16_ok_nocache): Drop non-fpu
	checking alternative.

From-SVN: r268943

2019-02-15  Aaron Sawdey  <acsawdey@linux.ibm.com>

	PR rtl-optimization/88308
	* shrink-wrap.c (move_insn_for_shrink_wrap): Fix LABEL_NUSES counts
	on copied instruction.

From-SVN: r268942

	PR go/89123
    internal/cpu, runtime: add S/390 CPU capability support
    
    Patch by Robin Dapp.
    
    Updates https://gcc.gnu.org/PR89123
    
    Reviewed-on: https://go-review.googlesource.com/c/162887

From-SVN: r268941

    
    Fixes Solaris build.
    
    Reviewed-on: https://go-review.googlesource.com/c/162885

From-SVN: r268940

    
    Reviewed-on: https://go-review.googlesource.com/c/162884

From-SVN: r268939

From-SVN: r268934

	* c-c++-common/patchable_function_entry-decl.c: Do not run on Visium.
	* c-c++-common/patchable_function_entry-default.c: Likewise.
	* c-c++-common/patchable_function_entry-definition.c: Likewise.
	* gcc.dg/tree-ssa/pr84859.c: Add -ftree-cselim switch.

From-SVN: r268932

libgcc/
	* config/visium/lib2funcs.c (__set_trampoline_parity): Replace
	TRAMPOLINE_SIZE with __LIBGCC_TRAMPOLINE_SIZE__.
gcc/
	* final.c (insn_current_reference_address): Replace test on JUMP_P
	with test on jump_to_label_p.
	* config/visium/visium-passes.def: New file.
	* config/visium/t-visium (PASSES_EXTRA): Define.
	* config/visium/visium-protos.h (make_pass_visium_reorg): Declare.
	* config/visium/visium.h (TRAMPOLINE_SIZE): Adjust.
	(TRAMPOLINE_ALIGNMENT): Define.
	* config/visium/visium.c (visium_option_override): Do not register
	the machine-specific reorg pass here.
	(visium_trampoline_init): Align the BRA insn on a 64-bit boundary
	for the GR6.
	(output_branch): Adjust threshold for long branch instruction.
	* config/visium/visium.md (cpu): Move around.
	(length): Adjust for the GR6.

From-SVN: r268931

	PR other/69006
	PR testsuite/88920
	* lib/gcc-dg.exp: If llvm_binutils effective target, set
	allow_blank_lines to 2 during initialization.
	(dg-allow-blank-lines-in-output): Set allow_blank_lines to 1 only if
	it was previously zero.
	(gcc-dg-prune): Don't check for llvm_binutils effective target here.
	Clear allow_blank_lines afterwards whenever it was 1.
	* gdc.test/gdc-test.exp (dmd2dg): Don't call
	dg-allow-blank-lines-in-output here.
	(gdc-do-test): Set allow_blank_lines to 3 if it is 0 before running
	the tests and restore it back at the end.

From-SVN: r268930

	* c-c++-common/ubsan/opts-1.c: New test.
	* c-c++-common/ubsan/opts-2.c: New test.
	* c-c++-common/ubsan/opts-3.c: New test.
	* c-c++-common/ubsan/opts-4.c: New test.

From-SVN: r268929

	PR tree-optimization/89278
	* tree-loop-distribution.c: Include tree-eh.h.
	(generate_memset_builtin, generate_memcpy_builtin): Call
	rewrite_to_non_trapping_overflow on builtin->size before passing it
	to force_gimple_operand_gsi.

	* gcc.dg/pr89278.c: New test.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r268927

	PR c/89340
	* c-decl.c (start_function): Clear TREE_PUBLIC on nested functions
	before c_decl_attributes rather than after it.

	* gcc.dg/pr89340.c: New test.
	* gcc.dg/torture/pr57036-2.c (jpgDecode_convert): Expect a warning
	that leaf attribute on nested function is useless.

From-SVN: r268926

	PR other/89342
	* optc-save-gen.awk: Handle optimize_fast like optimize_size or
	optimize_debug.
	* opth-gen.awk: Likewise.

	* gcc.dg/pr89342.c: New test.

From-SVN: r268924

    
    Compiling with LTO revealed a number of cases in the runtime and
    standard library where C and Go disagreed about the type of an object or
    function (or where Go and code generated by the compiler disagreed). In
    all cases the underlying representation was the same (e.g., uintptr vs.
    void*), so this wasn't causing actual problems, but it did result in a
    number of annoying warnings when compiling with LTO.
    
    Reviewed-on: https://go-review.googlesource.com/c/160700

From-SVN: r268923

	PR go/89168
    libgo: change gotest to run examples with output
    
    Change the gotest script to act like "go test" and run examples that
    have "output" comments.  This is not done with full generality, but
    just enough to run the libgo tests.  Other packages should be tested
    with "go test" as usual.
    
    While we're here clean up some old bits of gotest, and only run
    TestXXX functions that are actually in *_test.go files.  The latter
    change should fix https://gcc.gnu.org/PR89168.
    
    Reviewed-on: https://go-review.googlesource.com/c/162139

From-SVN: r268922

	* go-backend.c (go_imported_unsafe): Update
	optimization_default_node.

From-SVN: r268921

From-SVN: r268920

	* config/i386/i386.h (TARGET_SUBTARGET64_ISA_DEFAULT):
	Enable MMX, SSE and SSE2 by default.
	* config/i386/i386.c (ix86_option_override_internal): Do not
	explicitly set MMX, SSE and SSE2 flags for TARGET_64BIT here.

From-SVN: r268917

	PR rtl-optimization/89354
	* combine.c (make_extraction): Punt if extraction_mode is narrower
	than len bits.

	* gcc.dg/pr89354.c: New test.

From-SVN: r268913

	* gcc.target/i386/ssse3-pabsb.c: Re-enable 64-bit form on AVX targets.
	* gcc.target/i386/ssse3-pabsd.c: Ditto.
	* gcc.target/i386/ssse3-pabsw.c: Ditto.
	* gcc.target/i386/ssse3-palignr.c: Ditto.
	* gcc.target/i386/ssse3-phaddd.c: Ditto.
	* gcc.target/i386/ssse3-phaddsw.c: Ditto.
	* gcc.target/i386/ssse3-phaddw.c: Ditto.
	* gcc.target/i386/ssse3-phsubd.c: Ditto.
	* gcc.target/i386/ssse3-phsubsw.c: Ditto.
	* gcc.target/i386/ssse3-phsubw.c: Ditto.
	* gcc.target/i386/ssse3-pmaddubsw.c: Ditto.
	* gcc.target/i386/ssse3-pmulhrsw.c: Ditto.
	* gcc.target/i386/ssse3-pshufb.c: Ditto.
	* gcc.target/i386/ssse3-psignb.c: Ditto.
	* gcc.target/i386/ssse3-psignd.c: Ditto.
	* gcc.target/i386/ssse3-psignw.c: Ditto.

From-SVN: r268907

Make the option handling code parse the -flag-init-integer value as a
C long type, allowing a larger range on systems where long is a larger
type than int.  Document the behavior.

Regtested on x86_64-pc-linux-gnu, committed as obvious.

2019-02-14  Janne Blomqvist  <jb@gcc.gnu.org>

        PR fortran/81552
        * gfortran.h (gfc_option_t): Make flag_init_integer_value a long.
        * options.c (gfc_handle_option): Use strtol instead of atoi.
        * invoke.texi: Document -finit-integer behavior in more detail

From-SVN: r268906

Merges upstream druntime fb4bda91.

2019-02-14  Maya Rashish  <coypu@sdf.org>

gcc/ChangeLog:

	* config.gcc (*-*-netbsd*): Add netbsd-d.o
	* config/netbsd-d.c: New file.
	* config/t-netbsd: Add netbsd-d.o

gcc/d/ChangeLog:

	* d-system.h: NetBSD is POSIX.

libphobos/ChangeLog:

	* configure.tgt: Add netbsd/x86 as supported target.

From-SVN: r268905

re PR go/89321 (cross build with riscv64 gccgo compilation failed due to assert in constructor_expression)

	PR go/89321
    compiler: copy has_padding field from converted struct
    
    Test case is https://golang.org/cl/162617.
    
    Fixes https://gcc.gnu.org/PR89321
    
    Reviewed-on: https://go-review.googlesource.com/c/162618

From-SVN: r268904

2018-02-14  Steve Ellcey  <sellcey@marvell.com>

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

From-SVN: r268903

2018-02-14  Steve Ellcey  <sellcey@marvell.com>

	* config/aarch64/aarch64.c (aarch64_attribute_table): Change
	affects_type_identity to true for aarch64_vector_pcs.
	(aarch64_comp_type_attributes): New function.
	(TARGET_COMP_TYPE_ATTRIBUTES): New macro.

From-SVN: r268902

From-SVN: r268901

From-SVN: r268900

2019-02-14  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88248
	* symbol.c: Move check for labeled DO statement from
	gfc_define_st_label to gfc_reference_st_label.

	PR fortran/88248
	* gfortran.dg/pr88248.f90: New test.
	* gfortran.dg/f2018_obs.f90: Updated test.

From-SVN: r268895

    
    Updates golang/go#28104
    
    Reviewed-on: https://go-review.googlesource.com/c/161357

From-SVN: r268891

gcc/testsuite/ChangeLog:

	* gcc.target/arm/pr88850.c: change options to additional option.

From-SVN: r268887

	libphobos:
	PR d/87864
	* configure.ac (DRTSTUFF_SPEC): New variable.
	Substitute it.
	* libdruntime/m4/druntime/os.m4 (DRUNTIME_OS_MINFO_BRACKETING):
	New automake conditional.
	* configure: Regenerate.
	* libdruntime/gcc/drtstuff.c: New file.
	* libdruntime/Makefile.am [!DRUNTIME_OS_MINFO_BRACKETING]
	(DRTSTUFF, toolexeclib_DATA): New variables.
	(gcc/drtbegin.lo, gcc/drtend.lo): New rules.
	(libgdruntime_la_LDFLAGS): Use -Wc instead of -Xcompiler.
	Add -dstartfiles -B../src -Bgcc.
	(libgdruntime_la_DEPENDENCIES): New variable.
	(unittest_static_LDFLAGS): Use -Wc instead of -Xcompiler.
	(libgdruntime_t_la_LDFLAGS): Likewise.
	(unittest_LDFLAGS): Likewise.
	* src/Makefile.am (libgphobos_la_LDFLAGS): Use -Wc instead of
	-Xcompiler.
	Add -dstartfiles -B../libdruntime/gcc.
	(unittest_static_LDFLAGS): Use -Wc instead of -Xcompiler.
	(libgphobos_t_la_LDFLAGS): Likewise.
	(unittest_LDFLAGS): Likewise.
	* libdruntime/Makefile.in, src/Makefile.in: Regenerate.
	* Makefile.in, testsuite/Makefile.in: Regenerate.
	* libdruntime/rt/sections_elf_shared.d (Minfo_Bracketing): Don't
	assert.
	* libdruntime/gcc/config.d.in (Minfo_Bracketing): Remove.
	* src/drtstuff.spec: New file.
	* src/libgphobos.spec.in (DRTSTUFF_SPEC): Substitute.
	(*lib): Only pass SPEC_PHOBOS_DEPS without -debuglib, -defaultlib,
	-nophoboslib.
	* testsuite/testsuite_flags.in <--gdcldflags> (GDCLDFLAGS): Add
	-B${BUILD_DIR}/libdruntime/gcc.

	gcc/d:
	PR d/87864
	* lang.opt (dstartfiles): New option.
	* d-spec.cc (need_spec): New variable.
	(lang_specific_driver) <OPT_dstartfiles>: Enable need_spec.
	(lang_specific_pre_link): Also load libgphobos.spec if need_spec.

	gcc/testsuite:
	PR d/87864
	* lib/gdc.exp (gdc_link_flags): Add path to drtbegin.o/drtend.o if
	present.

From-SVN: r268886

	* doc/xml/manual/status_cxx2020.xml: Update P0887R1 status.
	* doc/html/*: Regenerate.

From-SVN: r268885

The iterator ANY64 are used in various general split patterns and is supposed
to contain all 64 bit modes.

For some reason the pattern has HI but not HF.  This adds HF so that general
64 bit splits are generated for these modes as well.  These are required
by various split patterns that expect them to be there.

gcc/ChangeLog:

	PR target/88850
	* config/arm/iterators.md (ANY64): Add V4HF.

gcc/testsuite/ChangeLog:

	PR target/88850
	* gcc.target/arm/pr88850-2.c: New test.
	* lib/target-supports.exp
	(check_effective_target_arm_neon_softfp_fp16_ok_nocache,
	check_effective_target_arm_neon_softfp_fp16_ok,
	add_options_for_arm_neon_softfp_fp16): New.

From-SVN: r268884

	* doc/xml/manual/status_cxx2017.xml: Add P0063R3 to status table.
	* doc/html/*: Regenerate.

From-SVN: r268883

Because uses-allocator construction is invariably done with a const
lvalue the __uses_alloc helper should use a const lvalue for the
is_constructible checks. Otherwise, it can detect that the type can be
constructed from an rvalue, and then an error happens when a const
lvalue is passed to the constructor instead.

Prior to LWG DR 2586 scoped_allocator_adaptor incorrectly used an rvalue
type in the is_constructible check and then used a non-const lvalue for
the actual construction. The other components using uses-allocator
construction (tuple and polymorphic_allocator) have always done so with
a const lvalue allocator, although the use of __use_alloc in our
implementation meant they behaved the same as scoped_allocator_adaptor
and incorrectly used rvalues for the is_constructible checks.

In C++20 the P0591R4 changes mean that all uses-allocator construction
is defined in terms of the new uses_allocator_construction_args
functions, which always use a const lvalue allocator.

The changes in this patch ensure that the __use_alloc helper correctly
matches the requirements in the standard, consistently using a const
lvalue allocator for the is_constructible checks and the actual
constructor arguments.

	* doc/xml/manual/intro.xml: Document LWG 2586 status.
	* include/bits/uses_allocator.h (__uses_alloc): Use const lvalue
	allocator type in is_constructible checks.
	* testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error.
	* testsuite/20_util/scoped_allocator/dr2586.cc: New test.
	* testsuite/20_util/tuple/cons/allocators.cc: Add test using
	problematic type from LWG 2586 discussion.
	* testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error.
	* testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.

From-SVN: r268882

When this testcase was introduced it failed to account for the possibility of
targets that do not support arm mode or that do not support the ldrd/strd
instructions.

This patch accounts for both of these by adding some
dg-require-effective-target lines to the testcase.

This patch also adds a new effective-target procedure to check a target
supports ldrd/strd.

This patch also adds a new effective-target procedure to check a target
supports arm ldrd/strd.
The check uses the 'r' constraint to ensure SP is not used so that it will work
for thumb mode code generation as well as arm mode.

Tested by running this testcase with cross compilers using "-march=armv5t",
"-mcpu=cortex-m3", "-mcpu-arm7tdmi", "-mcpu=cortex-a9 -march=armv5t" for both
arm-none-eabi and arm-none-linux-gnueabihf.
Also ran this testcase with `make check` natively.

gcc/testsuite/ChangeLog:

2019-02-14  Matthew Malcomson  <matthew.malcomson@arm.com>

	* gcc.dg/rtl/arm/ldrd-peepholes.c: Restrict testcase.
	* lib/target-supports.exp: Add procedure to check for ldrd.

From-SVN: r268881

	PR lto/88677
Fix PR number.

From-SVN: r268880

	* configure.ac: Check for C11 timespec_get function.
	* crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd)
	(openbsd): Likewise
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* include/c_global/ctime (timespec, timespec_get): Add to namespace
	std for C++17 and up.

From-SVN: r268879

This change is safe to make now (in stage 4), because the constructors
are currently incorrect and unusable (unless the supplied container
already contains a heap, in which case the new make_heap calls are
redundant but harmless).

	* doc/xml/manual/intro.xml: Document LWG 2537 status.
	* include/bits/stl_queue.h
	(priority_queue(const Compare&, const Container&, const Alloc&))
	(priority_queue(const Compare&, Container&&, const Alloc&)): Call
	make_heap.
	* testsuite/23_containers/priority_queue/dr2537.cc: New test.

From-SVN: r268878