re PR preprocessor/92296 (internal compiler error: Segmentation fault  #pragma push_macro("__LINE__"))

	PR preprocessor/92296
	* internal.h (struct def_pragma_macro): Add is_builtin bitfield.
	(_cpp_restore_special_builtin): Declare.
	* init.c (_cpp_restore_special_builtin): New function.
	* directives.c (do_pragma_push_macro): For NT_BUILTIN_MACRO
	set is_builtin and don't try to grab definition.
	(cpp_pop_definition): Use _cpp_restore_special_builtin to restore
	builtin macros.

	* c-c++-common/cpp/pr92296-1.c: New test.
	* c-c++-common/cpp/pr92296-2.c: New test.

From-SVN: r277685

2019-10-31  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* gcc.target/msp430/devices-main.c: Move to devices subdirectory.
	* gcc.target/msp430/devices/bad-devices-1.c: Update #include path to
	devices-main.c.
	* gcc.target/msp430/devices/bad-devices-2.c: Likewise.
	* gcc.target/msp430/devices/bad-devices-3.c: Likewise.
	* gcc.target/msp430/devices/bad-devices-4.c: Likewise.
	* gcc.target/msp430/devices/bad-devices-5.c: Likewise.
	* gcc.target/msp430/devices/bad-devices-6.c: Likewise.
	* gcc.target/msp430/devices/csv-device-order.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_00.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_01.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_02.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_04.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_08.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_10.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_11.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_12.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_14.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_18.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_20.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_21.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_22.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_24.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430_28.c: Likewise.
	* gcc.target/msp430/devices/csv-msp430fr5969.c: Likewise.
	* gcc.target/msp430/devices/hard-cc430f5123.c: Likewise.
	* gcc.target/msp430/devices/hard-foo.c: Likewise.
	* gcc.target/msp430/devices/hard-msp430afe253.c: Likewise.
	* gcc.target/msp430/devices/hard-msp430cg4616.c: Likewise.
	* gcc.target/msp430/devices/hard-msp430f4783.c: Likewise.
	* gcc.target/msp430/devices/hard-rf430frl154h_rom.c: Likewise.

From-SVN: r277684

This had been failing since a mass renaming.  Noticed it a few times
before but somehow never got around to fixing it.

2019-10-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	* g++.target/aarch64/sve/vcond_1_run.C: Update test name.

From-SVN: r277683

vcond_4.c combined too much stuff into one test, so that when we needed
to add XFAILs for one set of routines, we lost testing of others that
used the same instructions.  This patch splits it into four:

vcond_4.c:
  The main test for selects between a vector and a scalar, with all
  elements having the same size.

  After Prathamesh's fix for PR91272, we are now guaranteed to use the
  conditionally-loaded vector as the "then" value and the scalar as the
  "else" value.

vcond_4_zero.c:
  Like vcond_4.c, but comparing with zero.

vcond_4_sel.c:
  Tests for selects between two scalars, with all elements having
  the same size.  The optimisers can legitimately switch the "then"
  and "else" order and adjust the comparison to match.

vcond_4_costly.c:
  Like vcnod_4.c, but with mixed element sizes.  The sequences tested
  here will not be the preferred ones once we support mixtures of vector
  sizes, but it still tests an important code path.

This means that vcond_4_run.c now only tests what's left in vcond_4.c,
but that seems OK, since the main point was to ensure correct exception
behaviour.

Similarly it means that vcond_5.c only tests what's left in vcond_4.c,
but that too is OK, since the point of the test was to compare the
default handling of each comparison in vcond_4.c with the
-fno-trapping-math equivalent.

2019-10-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	* gcc.target/aarch64/sve/vcond_4.c: Split parts out into...
	* gcc.target/aarch64/sve/vcond_4_costly.c,
	* gcc.target/aarch64/sve/vcond_4_sel.c,
	* gcc.target/aarch64/sve/vcond_4_zero.c: ...these new tests.
	* gcc.target/aarch64/sve/vcond_4_run.c: Adjust accordingly.
	* gcc.target/aarch64/sve/vcond_5.c: Likewise.

From-SVN: r277682

This patch splits gcc.target/aarch64/sve/reduc_strict_3.c into one
test per function, so that it's easier to see what each scan is
matching and also so that we no longer rely on the number of times
that each dump message is printed.

The patch also generalises the tests to work with scalable vectors.
I think the test probably predates support for variable-length
loop-aware SLP.

2019-10-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	* gcc.target/aarch64/sve/reduc_strict_3.c: Split all but the
	first function out into...
	* gcc.target/aarch64/sve/reduc_strict_4.c,
	* gcc.target/aarch64/sve/reduc_strict_5.c,
	* gcc.target/aarch64/sve/reduc_strict_6.c,
	* gcc.target/aarch64/sve/reduc_strict_7.c,
	* gcc.target/aarch64/sve/reduc_strict_8.c,
	* gcc.target/aarch64/sve/reduc_strict_9.c: ...these new tests.
	Test for scalable vectors instead of 256-bit vectors.

From-SVN: r277681

The SVE PCS support broke go, D and Ada because those languages don't
call TARGET_INIT_BUILTINS.  We therefore ended up trying to get the
TYPE_MAIN_VARIANT of a null __SVBool_t.

We shouldn't really need to apply TYPE_MAIN_VARIANT there anyway,
since the ABI-defined types are (and need to be) their own main
variants.  This patch asserts for that instead.

2019-10-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/aarch64-sve-builtins.cc (register_builtin_types):
	Assert that the type we store in abi_vector_types is its own
	main variant.
	(svbool_type_p): Don't apply TYPE_MAIN_VARIANT here.

From-SVN: r277680

	PR fortran/92284
	* gfortran.dg/bind_c_array_params_3_aux.c: Include
	../../../libgfortran/ISO_Fortran_binding.h rather than
	ISO_Fortran_binding.h.

From-SVN: r277679

        * gfortran.dg/achar_2.f90: Remove bogus line from
        last commit.

From-SVN: r277678

Thumb2 code now uses the Arm implementation of legitimize_address.
That code has a case to handle addresses that are absolute CONST_INT
values, which is a common use case in deeply embedded targets (eg:
void *p = (void*)0x12345678).  Since thumb has very limited negative
offsets from a constant, we want to avoid forming a CSE base that will
then be used with a negative value.

This was reported upstream originally in
https://gcc.gnu.org/ml/gcc-help/2019-10/msg00122.html

For example,

void test1(void) {
  volatile uint32_t * const p = (uint32_t *) 0x43fe1800;

  p[3] = 1;
  p[4] = 2;
  p[1] = 3;
  p[7] = 4;
  p[0] = 6;
}

With the new code, instead of 

        ldr     r3, .L2
        subw    r2, r3, #2035
        movs    r1, #1
        str     r1, [r2]
        subw    r2, r3, #2031
        movs    r1, #2
        str     r1, [r2]
        subw    r2, r3, #2043
        movs    r1, #3
        str     r1, [r2]
        subw    r2, r3, #2019
        movs    r1, #4
        subw    r3, r3, #2047
        str     r1, [r2]
        movs    r2, #6
        str     r2, [r3]
        bx      lr


We now get

        ldr     r3, .L2
        movs    r2, #1
        str     r2, [r3, #2060]
        movs    r2, #2
        str     r2, [r3, #2064]
        movs    r2, #3
        str     r2, [r3, #2052]
        movs    r2, #4
        str     r2, [r3, #2076]
        movs    r2, #6
        str     r2, [r3, #2048]
        bx      lr


	* config/arm/arm.c (arm_legitimize_address): Don't form negative
	offsets from a CONST_INT address when TARGET_THUMB2.

From-SVN: r277677

On ARM, the SBC instruction is defined as

  Ra - Rb - ~C

where C is the carry flag.  But -Rb = ~Rb + 1, so this is equivalent to

  Ra + ~Rb + 1 - ~C

which then simplifies to

  Ra + ~Rb + C

which is essentially an add-with-carry with one operand inverted.  We
can define RTL patterns to match this.  In thumb2 we can only match
when the operands are both registers, but in Arm state we can also use
RSC to match when Rn is either a constant or a shifted operand.

This overall simplifies some cases of 64-bit arithmetic, for example, 

int64_t f (int64_t a, int64_t b) { return a + ~b; }

will now compile to

  MVN  R2, R2
  ADDS R0, R0, R2
  SBC  R1, R1, R3

	* config/arm/arm.md (add_not_cin): New insn.
	(add_not_shift_cin): Likewise.

From-SVN: r277676

2019-10-31  Martin Liska  <mliska@suse.cz>

	* ipa-icf-gimple.c (func_checker::compare_tree_ssa_label): Remove.
	* ipa-icf-gimple.h: Remove declaration from compare_tree_ssa_label
	and compare_memory_operand.

From-SVN: r277675

        * gfortran.dg/achar_2.f90: Print 'DONE' and add dg-output.

From-SVN: r277674

The type trait depends on is_void so the tests should check those cases.

	* testsuite/20_util/add_pointer/value.cc: Check void types.

From-SVN: r277672

With the compiler bug fixed we can simplify the __sizable concept to use
a return-type-requirement again. I also realised it was redundantly
re-checking a subset of the sized_sentinel_for requirements.

The compiler fix also revealed bugs in two tests which started to fail
and are fixed by this patch.

	* include/bits/range_access.h (__sizable): Rename to __sentinel_size.
	Remove workaround for PR c++/92268 and remove redundant requirements
	that are already checked by sized_sentinel_for.
	* testsuite/std/ranges/access/cend.cc: Fix failures.
	* testsuite/std/ranges/access/end.cc: Likewise.

From-SVN: r277667

This combines the overloads for arrays with the non-array overloads,
using if-constexpr to choose between the cases, and also enforces the
following:

- ADL should only be used for class types and enumeration types.
- ranges::begin should be ill-formed for rvalue arrays.
- ranges::end should be ill-formed for rvalue arrays, unbounded
  arrays, and arrays of incomplete type.
- ranges::size should be ill-formed for unbounded arrays.

	* include/bits/range_access.h (ranges::begin): Combine array and
	non-array overloads into one function template. Only use ADL for
	classes and enums
	(ranges::end, ranges::size): Likewise. Make unbounded arrays
	ill-formed.
	(ranges::rbegin, ranges::rend): Only use ADL for classes and enums.
	Reformat _S_noexcept() functions to mirror operator() structure.
	* testsuite/std/ranges/access/begin.cc: Check incomplete array.
	* testsuite/std/ranges/access/end_neg.cc: New test.
	* testsuite/std/ranges/access/size.cc: Check array of incomplete type.
	* testsuite/std/ranges/access/size_neg.cc: New test.

From-SVN: r277666

gcc/testsuite/ChangeLog:
2019-10-31  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* gcc.target/aarch64/sve/reduc_strict_3.c: Fix option order.
	* gcc.target/i386/avx-vzeroupper-19.c: Likewise.
	* gcc.target/i386/avx2-vect-mask-store-move1.c: Likewise.
	* gcc.target/i386/avx512f-gather-2.c: Likewise.
	* gcc.target/i386/avx512f-gather-5.c: Likewise.
	* gcc.target/i386/l_fma_double_1.c: Likewise.
	* gcc.target/i386/l_fma_double_2.c: Likewise.
	* gcc.target/i386/l_fma_double_3.c: Likewise.
	* gcc.target/i386/l_fma_double_4.c: Likewise.
	* gcc.target/i386/l_fma_double_5.c: Likewise.
	* gcc.target/i386/l_fma_double_6.c: Likewise.
	* gcc.target/i386/l_fma_float_1.c: Likewise.
	* gcc.target/i386/l_fma_float_2.c: Likewise.
	* gcc.target/i386/l_fma_float_3.c: Likewise.
	* gcc.target/i386/l_fma_float_4.c: Likewise.
	* gcc.target/i386/l_fma_float_5.c: Likewise.
	* gcc.target/i386/l_fma_float_6.c: Likewise.
	* gcc.target/i386/mask-pack.c: Likewise.
	* gcc.target/i386/mask-unpack.c: Likewise.

From-SVN: r277664

        gcc/fortran/
        PR fortran/92284.
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Free CFI descriptor
        at the end; partial revised revert of Rev. 277502.

        libgfortran/
        PR fortran/92284.
        * runtime/ISO_Fortran_binding.c (gfc_desc_to_cfi_desc):

        gcc/testsuite/
        PR fortran/92284.
        * gfortran.dg/bind-c-intent-out.f90: Update expected dump;
        extend comment.
        * gfortran.dg/bind_c_array_params_3.f90: New.
        * gfortran.dg/bind_c_array_params_3_aux.c: New.

From-SVN: r277663

	* configure.ac: Compute and substitute omp_device_properties and
	omp_device_property_deps.
	* Makefile.in (generated_files): Add omp-device-properties.h.
	(omp-general.o): Depend on omp-device-properties.h.
	(omp_device_properties): New make variable.
	(omp-device-properties.h, s-omp-device-properties-h,
	install-omp-device-properties): New goals.
	(install): Depend on install-omp-device-properties for accelerators.
	* target.def (TARGET_OMP_DEVICE_KIND_ARCH_ISA): New target hook.
	* target.h (enum omp_device_kind_arch_isa): New enum.
	* doc/tm.texi.in: Add placeholder for TARGET_OMP_DEVICE_KIND_ARCH_ISA
	documentation.
	* omp-general.c: Include omp-device-properties.h.
	(omp_max_simt_vf): Expect OFFLOAD_TARGET_NAMES to be separated by
	colon instead of comma.
	(omp_offload_device_kind_arch_isa, omp_maybe_offloaded): New
	functions.
	(omp_context_selector_matches): Implement device set arch/isa
	selectors, improve device set kind selector handling.
	* config/i386/i386-options.h (ix86_omp_device_kind_arch_isa): Declare.
	* config/i386/i386.c (TARGET_SIMD_CLONE_ADJUST,
	TARGET_SIMD_CLONE_USABLE): Formatting fix.
	(TARGET_OMP_DEVICE_KIND_ARCH_ISA): Redefine to
	ix86_omp_device_kind_arch_isa.
	* config/i386/i386-options.c (struct ix86_target_opts): Move type
	definition from ix86_target_string to file scope.
	(isa2_opts, isa_opts): Moved arrays from ix86_target_string function
	to file scope.
	(ix86_omp_device_kind_arch_isa): New function.
	(ix86_target_string): Moved struct ix86_target_opts, isa2_opts and
	isa_opts definitions to file scope.
	* config/i386/t-intelmic (omp-device-properties): New goal.
	* config/nvptx/t-nvptx (omp-device-properties): Likewise.
	* config/nvptx/nvptx.c (nvptx_omp_device_kind_arch_isa): New function.
	(TARGET_OMP_DEVICE_KIND_ARCH_ISA): Redefine to
	nvptx_omp_device_kind_arch_isa.
	* configure: Regenerate.
	* doc/tm.texi: Regenerate.
testsuite/
	* c-c++-common/gomp/declare-variant-9.c: New test.
	* c-c++-common/gomp/declare-variant-10.c: New test.

From-SVN: r277662

        gcc/fortran/
        PR fortran/92277
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Fix DECL_ARTIFICIAL
        checking.

        gcc/testsuite/
        PR fortran/92277
        * fortran.dg/pr92277.f90: New.

From-SVN: r277661

	PR middle-end/92231
	* tree.h (fndecl_built_in_p): Use fndecl_built_in_p instead of
	DECL_BUILT_IN in comment.  Remove redundant ()s around return
	argument.
	* tree.c (free_lang_data_in_decl): Check if var is FUNCTION_DECL
	before calling fndecl_built_in_p.
	* gimple-fold.c (gimple_fold_stmt_to_constant_1): Check if
	TREE_OPERAND (fn, 0) is a FUNCTION_DECL before calling
	fndecl_built_in_p on it.
lto/
	* lto-lang.c (handle_const_attribute): Don't call fndecl_built_in_p
	on *node that is not FUNCTION_DECL.
testsuite/
	* gcc.c-torture/compile/pr92231.c: New test.

From-SVN: r277660

This patch turns epilogue vectorization on by default for all targets.  The
following test strategy was chosen for this:

1) Disable epilogue vectorization for all tests that failed due to
scan-tree-dump failures for aarch64, arm and x86_64 inside:
  - gcc.dg/vect
  - gcc.target/i386
  - gcc.target/aarch6
  - gfortran.dg/vect

2) Add the Bugzilla's reported testcase but xfail the scan for
"EPILOGUE VECTORIZED" for arm*-*-* as that target does not vectorize the
epilogue.

gcc/ChangeLog:
2019-10-31  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* params.def (PARAM_VECT_EPILOGUES_NOMASK): Enable by default.

gcc/testsuite/ChangeLog:
2019-10-31  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* gcc.dg/vect/vect-epilogues.c: New test.
	* gcc.dg/vect/fast-math-vect-call-1.c: Disable for epilogue
	vectorization.
	* gcc.dg/vect/no-fast-math-vect16.c: Likewise.
	* gcc.dg/vect/no-scevccp-noreassoc-slp-reduc-7.c: Likewise.
	* gcc.dg/vect/no-scevccp-vect-iv-3.c: Likewise.
	* gcc.dg/vect/no-section-anchors-vect-31.c: Likewise.
	* gcc.dg/vect/no-section-anchors-vect-64.c: Likewise.
	* gcc.dg/vect/no-section-anchors-vect-66.c: Likewise.
	* gcc.dg/vect/no-section-anchors-vect-68.c: Likewise.
	* gcc.dg/vect/no-vfa-vect-dv-2.c: Likewise.
	* gcc.dg/vect/pr33804.c: Likewise.
	* gcc.dg/vect/pr53773.c: Likewise.
	* gcc.dg/vect/pr65947-1.c: Likewise.
	* gcc.dg/vect/pr65947-13.c: Likewise.
	* gcc.dg/vect/pr65947-14.c: Likewise.
	* gcc.dg/vect/pr65947-4.c: Likewise.
	* gcc.dg/vect/pr80631-1.c: Likewise.
	* gcc.dg/vect/pr80631-2.c: Likewise.
	* gcc.dg/vect/slp-23.c: Likewise.
	* gcc.dg/vect/slp-25.c: Likewise.
	* gcc.dg/vect/slp-reduc-2.c: Likewise.
	* gcc.dg/vect/slp-reduc-5.c: Likewise.
	* gcc.dg/vect/slp-reduc-6.c: Likewise.
	* gcc.dg/vect/slp-reduc-sad-2.c: Likewise.
	* gcc.dg/vect/slp-widen-mult-half.c: Likewise.
	* gcc.dg/vect/trapv-vect-reduc-4.c: Likewise.
	* gcc.dg/vect/vect-103.c: Likewise.
	* gcc.dg/vect/vect-109.c: Likewise.
	* gcc.dg/vect/vect-119.c: Likewise.
	* gcc.dg/vect/vect-24.c: Likewise.
	* gcc.dg/vect/vect-26.c: Likewise.
	* gcc.dg/vect/vect-27.c: Likewise.
	* gcc.dg/vect/vect-29.c: Likewise.
	* gcc.dg/vect/vect-42.c: Likewise.
	* gcc.dg/vect/vect-44.c: Likewise.
	* gcc.dg/vect/vect-48.c: Likewise.
	* gcc.dg/vect/vect-50.c: Likewise.
	* gcc.dg/vect/vect-52.c: Likewise.
	* gcc.dg/vect/vect-54.c: Likewise.
	* gcc.dg/vect/vect-56.c: Likewise.
	* gcc.dg/vect/vect-58.c: Likewise.
	* gcc.dg/vect/vect-60.c: Likewise.
	* gcc.dg/vect/vect-72.c: Likewise.
	* gcc.dg/vect/vect-75-big-array.c: Likewise.
	* gcc.dg/vect/vect-75.c: Likewise.
	* gcc.dg/vect/vect-77-alignchecks.c: Likewise.
	* gcc.dg/vect/vect-77-global.c: Likewise.
	* gcc.dg/vect/vect-78-alignchecks.c: Likewise.
	* gcc.dg/vect/vect-78-global.c: Likewise.
	* gcc.dg/vect/vect-89-big-array.c: Likewise.
	* gcc.dg/vect/vect-89.c: Likewise.
	* gcc.dg/vect/vect-91.c: Likewise.
	* gcc.dg/vect/vect-92.c: Likewise.
	* gcc.dg/vect/vect-96.c: Likewise.
	* gcc.dg/vect/vect-cond-reduc-3.c: Likewise.
	* gcc.dg/vect/vect-cond-reduc-4.c: Likewise.
	* gcc.dg/vect/vect-live-1.c: Likewise.
	* gcc.dg/vect/vect-live-2.c: Likewise.
	* gcc.dg/vect/vect-live-3.c: Likewise.
	* gcc.dg/vect/vect-live-4.c: Likewise.
	* gcc.dg/vect/vect-live-slp-1.c: Likewise.
	* gcc.dg/vect/vect-live-slp-2.c: Likewise.
	* gcc.dg/vect/vect-live-slp-3.c: Likewise.
	* gcc.dg/vect/vect-multitypes-3.c: Likewise.
	* gcc.dg/vect/vect-multitypes-4.c: Likewise.
	* gcc.dg/vect/vect-multitypes-6.c: Likewise.
	* gcc.dg/vect/vect-peel-1-epilogue.c: Likewise. New test.
	* gcc.dg/vect/vect-peel-1-src.c: Likewise. New test.
	* gcc.dg/vect/vect-peel-1.c: Likewise.
	* gcc.dg/vect/vect-peel-3-epilogue.c: Likewise. New test.
	* gcc.dg/vect/vect-peel-3-src.c: Likewise. New test.
	* gcc.dg/vect/vect-peel-3.c: Likewise.
	* gcc.dg/vect/vect-peel-4-epilogue.c: Likewise. New test.
	* gcc.dg/vect/vect-peel-4-src.c: Likewise. New test.
	* gcc.dg/vect/vect-peel-4.c: Likewise.
	* gcc.dg/vect/vect-reduc-6.c: Likewise.
	* gcc.dg/vect/vect-reduc-dot-s16a.c: Likewise.
	* gcc.dg/vect/vect-reduc-dot-s8a.c: Likewise.
	* gcc.dg/vect/vect-reduc-dot-s8b.c: Likewise.
	* gcc.dg/vect/vect-reduc-dot-u16b.c: Likewise.
	* gcc.dg/vect/vect-reduc-dot-u8a.c: Likewise.
	* gcc.dg/vect/vect-reduc-dot-u8b.c: Likewise.
	* gcc.dg/vect/vect-reduc-pattern-1a.c: Likewise.
	* gcc.dg/vect/vect-reduc-pattern-1b-big-array.c: Likewise.
	* gcc.dg/vect/vect-reduc-pattern-1c-big-array.c: Likewise.
	* gcc.dg/vect/vect-reduc-pattern-2a.c: Likewise.
	* gcc.dg/vect/vect-reduc-pattern-2b-big-array.c: Likewise.
	* gcc.dg/vect/vect-reduc-sad.c: Likewise.
	* gcc.dg/vect/vect-widen-mult-const-s16.c: Likewise.
	* gcc.dg/vect/vect-widen-mult-const-u16.c: Likewise.
	* gcc.dg/vect/vect-widen-mult-half-u8.c: Likewise.
	* gcc.dg/vect/vect-widen-mult-half.c: Likewise.
	* gcc.dg/vect/vect-widen-mult-u16.c: Likewise.
	* gcc.dg/vect/vect-widen-mult-u8-s16-s32.c: Likewise.
	* gcc.dg/vect/wrapv-vect-reduc-dot-s8b.c: Likewise.
	* gcc.target/aarch64/sve/reduc_strict_3.c: Likewise.
	* gcc.target/i386/avx-vzeroupper-19.c: Likewise.
	* gcc.target/i386/avx2-vect-mask-store-move1.c: Likewise.
	* gcc.target/i386/avx512f-gather-2.c: Likewise.
	* gcc.target/i386/avx512f-gather-5.c: Likewise.
	* gcc.target/i386/l_fma_double_1.c: Likewise.
	* gcc.target/i386/l_fma_double_2.c: Likewise.
	* gcc.target/i386/l_fma_double_3.c: Likewise.
	* gcc.target/i386/l_fma_double_4.c: Likewise.
	* gcc.target/i386/l_fma_double_5.c: Likewise.
	* gcc.target/i386/l_fma_double_6.c: Likewise.
	* gcc.target/i386/l_fma_float_1.c: Likewise.
	* gcc.target/i386/l_fma_float_2.c: Likewise.
	* gcc.target/i386/l_fma_float_3.c: Likewise.
	* gcc.target/i386/l_fma_float_4.c: Likewise.
	* gcc.target/i386/l_fma_float_5.c: Likewise.
	* gcc.target/i386/l_fma_float_6.c: Likewise.
	* gcc.target/i386/mask-pack.c: Likewise.
	* gcc.target/i386/mask-unpack.c: Likewise.
	* gfortran.dg/vect/vect-4.f90: Likewise.

From-SVN: r277659

This precondition is the subject of a national body comment on the C++20
CD. This just adds a test to ensure we enforce the precondition.

Also move existing 24_iterator/range_access*.cc tests to a dedicated
directory for the [iterator.range] subclause.

	* testsuite/24_iterators/range_access*.cc: Move to ...
	* testsuite/24_iterators/range_access/range_access*.cc: ... here.
	* testsuite/24_iterators/range_access/range_access_cpp20_neg.cc: New
	test.

From-SVN: r277658

2019-10-31  Martin Liska  <mliska@suse.cz>

	* config/arm/arm.c (arm_get_pcs_model): Remove usage
	of cgraph_local_info and use local_info_node instead.
	* config/bfin/bfin.c (bfin_load_pic_reg): Likewise.
	(bfin_function_ok_for_sibcall): Likewise.
	* config/c6x/c6x.c (c6x_function_ok_for_sibcall): Likewise.
	(must_reload_pic_reg_p): Likewise.

From-SVN: r277657

	PR c++/90947
	* tree.h (type_initializer_zero_p): Remove.
	* tree.c (type_initializer_zero_p): Remove.
cp/
	* cp-tree.h (type_initializer_zero_p): Declare.
	* decl.c (reshape_init_array_1): Formatting fix.
	* tree.c (type_initializer_zero_p): New function.  Moved from
	../tree.c, use next_initializable_field, formatting fix.  Return
	false for TYPE_NON_AGGREGATE_CLASS types.

From-SVN: r277656

Attached is a patch that adds parsing of the optional requires-clause in a
lambda-expression and lambda-declarator. Additionally, shorthand constraints
from the template-parameter-list are now actually applied and constrain the
synthesized operator().

Previously we were not parsing the requires clauses at all and not saving
the shorthand constraints in the place expected by grokfndecl.

The trailing requires-clause is now also used to suppress synthesis of the
conversion to function pointer for non-capturing non-generic lambdas as per
expr.prim.lambda.closure/7.

This includes a fix to template_class_depth. Previously it was computing the
wrong depth for lambdas in the initializer of a static member of a class
template, exhibited by the concepts-lambda4 test which currently fails on
trunk. The bug was causing grokfndecl to use the constraints from the
template class for the lambda.

gcc/cp/
2019-10-30  Jeff Chapman II  <jchapman@lock3software.com>

	PR c++/84810 - constraints on lambdas
	* lambda.c (maybe_add_lambda_conv_op): Do not synthesize
	conversion if the call operator does not satisfy its constraints.
	* parser.c (cp_parser_lambda_declarator_opt): Parse
	requires-clause on generic lambdas; combine with shorthand
	constraints. Parse trailing requires-clause and attach to the
	synthesized call operator.
	* pt.c (template_class_depth): Only inspect
	LAMBDA_TYPE_EXTRA_SCOPE if it is present. This fixes an
	incorrect depth calculation for lambdas inside the initializer
	of a static data member of a template class.

gcc/testsuite/
2019-10-30  Jeff Chapman II  <jchapman@lock3software.com>

	PR c++/84810 - constraints on lambdas
	* g++.dg/cpp2a/concepts-lambda2.C: New test.
	* g++.dg/cpp2a/concepts-lambda3.C: Ditto.
	* g++.dg/cpp2a/concepts-lambda4.C: Ditto.
	* g++.dg/cpp2a/concepts-pr84810.C: Ditto.

From-SVN: r277655

Previously we would put the template arguments for the concept-check in a
TEMPLATE_ID and then also pass them to constraints_satisfied_p, which meant
that we would try to normalize the concept-check with the fully instantiated
arguments, leading to sadness.  Simply not passing the args to
constraints_satisfied_p fixes the problem.

I also noticed that we weren't detecting substitution failure in the
constraints, but were silently treating it as success.

	* constraint.cc (type_deducible_p): Check for substitution failure.
	(diagnose_compound_requirement): Adjust diagnostic.
	* pt.c (do_auto_deduction): Don't pass cargs to
	constraints_satisfied_p.

From-SVN: r277654

From-SVN: r277653

	PR c++/91369 - Implement P0784R7: constexpr new
	* constexpr.c (cxx_replaceable_global_alloc_fn): Don't return true
	for placement new.
	(cxx_placement_new_fn, is_std_construct_at): New functions.
	(cxx_eval_call_expression): Allow placement new in std::construct_at.
	(potential_constant_expression_1): Likewise.

	* g++.dg/cpp2a/constexpr-new5.C: New test.

From-SVN: r277649

typeck.c (decl_in_std_namespace_p): Return true also for decls in inline namespaces inside of std namespace.

	* typeck.c (decl_in_std_namespace_p): Return true also for decls
	in inline namespaces inside of std namespace.

	* g++.dg/cpp0x/Wpessimizing-move6.C: New test.

From-SVN: r277648

2019-10-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.texi (-Wshadow, -Wshadow=global
        -Wshadow=local, -Wshadow=compatible-local): Update documentation.

cp:
2019-10-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/92024
        * name-lookup.c (check_local_shadow): Shadowing TYPE_DECLs
        is always a -Wshadow=compatible-local warning, unless
        -Wshadow is used.

testsuite:
2019-10-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR c++/92024
        * g++.dg/parse/crash70.C: New test.
        * c-c++-common/Wshadow-1.c: New test.

From-SVN: r277643

        PR fortran/92208
        * trans-array.c (gfc_conv_array_parameter): Only copy
        string-length backend_decl if expression is not a function.

        PR fortran/92208
        * gfortran.dg/pr92208.f90: New.

From-SVN: r277639

From-SVN: r277637

I wasn't properly setting LOOKUP_CONSTINIT in grokfield and so we didn't
detect a non-const initializer.

	* decl2.c (grokfield): Set LOOKUP_CONSTINIT.

	* g++.dg/cpp2a/constinit14.C: New test.

From-SVN: r277636

This combines two of the std::ranges::swap.operator() overloads into a
single function template. Using if-constexpr to choose between
implementations should give the compiler less work to do than using
overloading.

	* include/std/concepts (std::ranges::swap): Use a single overload for
	the non-array cases, and switch using if-constexpr.

From-SVN: r277635

	* include/bits/stl_iterator.h (__normal_iterator::iterator_concept):
	Guard with __cpp_lib_concepts macro.

From-SVN: r277634

	* include/std/bit (__cpp_lib_bitops): Define.
	* include/std/version (__cpp_lib_constexpr): Remove.
	(__cpp_lib_bitops, __cpp_lib_constexpr_dynamic_alloc): Define.
	* testsuite/26_numerics/bit/header.cc: New test.
	* testsuite/26_numerics/bit/header-2.cc: New test.
	* testsuite/20_util/allocator_traits/header.cc: New test.
	* testsuite/20_util/allocator_traits/header-2.cc: New test.

From-SVN: r277633

https://gcc.gnu.org/ml/gcc-patches/2019-10/msg02157.html
	* c-cppbuiltin.c (c_cpp_builtins): Add 'L' suffix to feature
	macros.

From-SVN: r277632

        gcc/
        * gimplify.c (gimplify_scan_omp_clauses): Remove FE-generated
        GOMP_MAP_TO_PSET and GOMP_MAP_POINTER mapping for 'target update'
        and 'target exit data'.

        libgomp/
        * testsuite/libgomp.fortran/target9.f90: New.

From-SVN: r277631

Similar to some recent patches, this removes using-declarations for
names from namespace std, so that they are not redeclared in __gnu_cxx.

	* include/bits/stl_iterator.h (namespace __gnu_cxx): Remove
	using-declarations for std::iterator and std::iterator_traits.
	(__gnu_cxx::__normal_iterator): Qualify iterator_traits.
	* include/ext/algorithm (namespace __gnu_cxx): Remove
	using-declarations for std names and qualify those names when used.
	Also refer to std::min in parentheses to protect against function-like
	macros.
	* include/ext/rc_string_base.h: Qualify iterator_traits.
	* include/ext/sso_string_base.h: Qualify iterator_traits.

From-SVN: r277630

This ensures that __normal_iterator<T*, C> satisfies the
contiguous_iterator concept, by defining the iterator_concept member
type.

Also update vector<bool>'s iterators, reverse_iterator,
istreambuf_iterator and ostreambuf_iterator to meet the C++20
requirements.

	PR libstdc++/92272
	* include/bits/stl_bvector.h (_Bit_iterator::pointer)
	(_Bit_const_iterator::pointer): Define as void for C++20.
	* include/bits/stl_iterator.h (reverse_iterator::operator->()): Add
	constraints for C++20.
	(__normal_iterator::iterator_concept): Define for C++20.
	* include/bits/streambuf_iterator.h (istreambuf_iterator::pointer):
	Define as void for C++20.
	(ostreambuf_iterator::difference_type): Define as ptrdiff_t for C++20.
	(ostreambuf_iterator::ostreambuf_iterator()): Add default constructor
	for C++20.
	* testsuite/23_containers/vector/bool/iterator_c++20.cc: New test.
	* testsuite/24_iterators/bidirectional/concept.cc: New test.
	* testsuite/24_iterators/bidirectional/tag.cc: New test.
	* testsuite/24_iterators/contiguous/concept.cc: New test.
	* testsuite/24_iterators/contiguous/tag.cc: New test.
	* testsuite/24_iterators/forward/concept.cc: New test.
	* testsuite/24_iterators/forward/tag.cc: New test.
	* testsuite/24_iterators/input/concept.cc: New test.
	* testsuite/24_iterators/input/tag.cc: New test.
	* testsuite/24_iterators/istreambuf_iterator/requirements/typedefs.cc:
	New test.
	* testsuite/24_iterators/ostreambuf_iterator/requirements/typedefs.cc:
	New test.
	* testsuite/24_iterators/output/concept.cc: New test.
	* testsuite/24_iterators/output/tag.cc: New test.
	* testsuite/24_iterators/random_access/concept.cc: New test.
	* testsuite/24_iterators/random_access/tag.cc: New test.
	* testsuite/24_iterators/range_operations/advance_debug_neg.cc: New
	test.
	* testsuite/24_iterators/random_access_iterator/26020.cc: Move to ...
	* testsuite/24_iterators/operations/26020.cc: ... here.
	* testsuite/24_iterators/random_access_iterator/
	string_vector_iterators.cc: Move to ...
	* testsuite/24_iterators/random_access/string_vector_iterators.cc: ...
	here.

From-SVN: r277629