gcc/cp:

2019-02-19  Tom Honermann  <tom@honermann.net>

	* name-lookup.c (get_std_name_hint): Added u8string as a name hint.

libstdc++:

2019-02-19  Tom Honermann  <tom@honermann.net>

	P0482R5 char8_t: Standard library support
	* config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
	typeinfo symbols for char8_t.
	* config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
	(GLIBCXX_3.4.26): Add symbols for specializations of
	numeric_limits and codecvt that involve char8_t.
	(CXXABI_1.3.12): Add typeinfo symbols for char8_t.
	* include/bits/atomic_base.h: Add atomic_char8_t.
	* include/bits/basic_string.h: Add std::hash<u8string> and
	operator""s(const char8_t*, size_t).
	* include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
	__cpp_lib_char8_t.
	* include/bits/char_traits.h: Add char_traits<char8_t>.
	* include/bits/codecvt.h: Add
	codecvt<char16_t, char8_t, mbstate_t>,
	codecvt<char32_t, char8_t, mbstate_t>,
	codecvt_byname<char16_t, char8_t, mbstate_t>, and
	codecvt_byname<char32_t, char8_t, mbstate_t>.
	* include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
	recognize char8_t as an integral type.
	* include/bits/fs_path.h: (path::__is_encoded_char): Recognize
	char8_t.
	(path::u8string): Return std::u8string when char8_t support is
	enabled.
	(path::generic_u8string): Likewise.
	(path::_S_convert): Handle conversion from char8_t input.
	(path::_S_str_convert): Likewise.
	* include/bits/functional_hash.h: Add hash<char8_t>.
	* include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
	char8_t.
	* include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
	for new char8_t specializations.
	* include/bits/localefwd.h: Add missing declarations of
	codecvt<char16_t, char, mbstate_t> and
	codecvt<char32_t, char, mbstate_t>.  Add char8_t declarations
	codecvt<char16_t, char8_t, mbstate_t> and
	codecvt<char32_t, char8_t, mbstate_t>.
	* include/bits/postypes.h: Add u8streampos
	* include/bits/stringfwd.h: Add declarations of
	char_traits<char8_t> and u8string.
	* include/c_global/cstddef: Add __byte_operand<char8_t>.
	* include/experimental/bits/fs_path.h (path::__is_encoded_char):
	Recognize char8_t.
	(path::u8string): Return std::u8string when char8_t support is
	enabled.
	(path::generic_u8string): Likewise.
	(path::_S_convert): Handle conversion from char8_t input.
	(path::_S_str_convert): Likewise.
	* include/experimental/string: Add u8string.
	* include/experimental/string_view: Add u8string_view,
	hash<experimental::u8string_view>, and
	operator""sv(const char8_t*, size_t).
	* include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
	* include/std/charconv (__is_int_to_chars_type): Recognize char8_t
	as a character type.
	* include/std/limits: Add numeric_limits<char8_t>.
	* include/std/string_view: Add u8string_view,
	hash<experimental::u8string_view>, and
	operator""sv(const char8_t*, size_t).
	* include/std/type_traits: Add __is_integral_helper<char8_t>,
	__make_unsigned<char8_t>, and __make_signed<char8_t>.
	* libsupc++/atomic_lockfree_defines.h: Define
	ATOMIC_CHAR8_T_LOCK_FREE.
	* src/c++11/Makefile.am: Compile with -fchar8_t when compiling
	codecvt.cc and limits.cc so that char8_t specializations of
	numeric_limits and codecvt and emitted.
	* src/c++11/Makefile.in: Likewise.
	* src/c++11/codecvt.cc: Define members of
	codecvt<char16_t, char8_t, mbstate_t>,
	codecvt<char32_t, char8_t, mbstate_t>,
	codecvt_byname<char16_t, char8_t, mbstate_t>, and
	codecvt_byname<char32_t, char8_t, mbstate_t>.
	* src/c++11/limits.cc: Define members of
	numeric_limits<char8_t>.
	* src/c++98/Makefile.am: Compile with -fchar8_t when compiling
	locale_init.cc and localename.cc.
	* src/c++98/Makefile.in: Likewise.
	* src/c++98/locale_init.cc: Add initialization for the
	codecvt<char16_t, char8_t, mbstate_t> and
	codecvt<char32_t, char8_t, mbstate_t> facets.
	* src/c++98/localename.cc: Likewise.
	* testsuite/util/testsuite_abi.cc: Validate ABI bump.

From-SVN: r269004

If we evaluate the RHS in the context of the LHS, that evaluation might
change the LHS in ways that mess with being able to store the value later.
So for assignment or scalar values, evaluate the RHS first.

	* constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
	assigned value.

From-SVN: r269003

From-SVN: r269002

Merges upstream druntime bbfb58e8.

libphobos/ChangeLog:

2019-02-19  Johannes Pfau  <johannespfau@gmail.com>

	PR d/88127
	* m4/druntime/libraries.m4 (DRUNTIME_LIBRARIES_CLIB): Add new macro.
	* configure.ac: Use DRUNTIME_LIBRARIES_CLIB.
	* configure: Regenerate
	* Makefile.in: Regenerate
	* libdruntime/gcc/config.d.in: Add Have_Qsort_R.
	* libdruntime/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

From-SVN: r268999

From-SVN: r268998

	* pt.c (check_explicit_specialization): If the declarator is a
	template-id, only check whether the arguments are dependent.

From-SVN: r268997

2019-02-18  Sharon Dvir  <unapologtic@gmail.com>

gcc/testsuite/
	* README: Fix typos.

From-SVN: r268996

	* g++.dg/torture/pr89303.C (bad_weak_ptr): Rename to
	bad_weak_ptr_.

From-SVN: r268995

	* parser.c (cp_parser_statement): Make attrs_loc a range.  Pass it
	to process_stmt_hotness_attribute.
	* cp-gimplify.c (process_stmt_hotness_attribute): Take attrs_loc.
	(genericize_if_stmt): Use likely/unlikely instead of predictor_name.

From-SVN: r268994

gcc/ChangeLog:

	* doc/cpp.texi (Conditional syntax): Add __has_attribute,
	__has_cpp_attribute, and __has_include.

From-SVN: r268993

2019-02-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/87689
    * trans-decl.c (gfc_get_extern_function_decl): Add argument
    actual_args and pass it through to gfc_get_function_type.
    * trans-expr.c (conv_function_val): Add argument actual_args
    and pass it on to gfc_get_extern_function_decl.
    (conv_procedure_call): Pass actual arguments to conv_function_val.
    * trans-types.c (get_formal_from_actual_arglist): New function.
    (gfc_get_function_type): Add argument actual_args.  Generate
    formal args from actual args if necessary.
    * trans-types.h (gfc_get_function_type): Add optional argument.
    * trans.h (gfc_get_extern_function_decl): Add optional argument.

2019-02-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/87689
    * gfortran.dg/lto/20091028-1_0.f90: Add -Wno-lto-type-mismatch to
    options.
    * gfortran.dg/lto/20091028-2_0.f90: Likewise.
    * gfortran.dg/lto/pr87689_0.f: New file.
    * gfortran.dg/lto/pr87689_1.f: New file.

From-SVN: r268992

gcc/ChangeLog:

	* doc/invoke.texi (-Wreturn-type): Correct and expand.

From-SVN: r268991

gcc/c-family/ChangeLog:

	PR middle-end/89294
	* c-common.c (invalid_array_size_error): Handle cst_size_not_constant.

gcc/ChangeLog:

	PR middle-end/89294
	* tree.c (valid_constant_size_p): Avoid assuming size is a constant
	expression.
	* tree.h (cst_size_error): Add the cst_size_not_constant enumerator.

From-SVN: r268990

Some recently added libstdc++ filesystem tests are missing a
dg-require-filesystem-ts.

Committed as obvious.

    libstdc++/testsuite/
	* 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts.
	* 27_io/filesystem/operations/resize_file.cc: Likewise.
	* 27_io/filesystem/path/generation/normal2.cc: Likewise.

From-SVN: r268989

Fix pr88680.C failures due to short enums on arm-none-eabi.

Committed as obvious.

    gcc/testsuite/
	* g++.dg/wrappers/pr88680.C: Add -fno-short-enums.

From-SVN: r268988

	libphobos:
	* testsuite/lib/libphobos-dg.exp: Tabify.
	* testsuite/lib/libphobos.exp: Likewise.
	* testsuite/libphobos.cycles/cycles.exp: Likewise.
	* testsuite/libphobos.shared/shared.exp: Likewise.
	* testsuite/libphobos.unittests/unittests.exp: Likewise.

	gcc/testsuite:
	* gdc.dg/dg.exp: Tabify.
	* gdc.dg/lto/lto.exp: Likewise.
	* gdc.test/gdc-test.exp: Likewise.
	* lib/gdc-dg.exp: Likewise.
	* lib/gdc.exp: Likewise.

From-SVN: r268987

2019-02-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/89296
	* tree-ssa-loop-ch.c (ch_base::copy_headers): Restrict setting
	of no-warning flag to cases that might emit the bogus warning.

	* gcc.dg/uninit-pr89296.c: New testcase.

From-SVN: r268986

	PR bootstrap/88714
	* config/arm/arm.md (*arm_movdi, *movdf_soft_insn): Use "r" instead of
	"q" constraint.
	* config/arm/vfp.md (*movdi_vfp): Likewise.
	* config/arm/ldrdstrd.md (*arm_ldrd, *arm_strd): Use "r" instead of
	"q" constraint for operands[0].

From-SVN: r268985

re PR target/89369 (pseudo-RNG miscompiled on s390x-linux with -O2 -march=zEC12 -mtune=z13 starting with r266203)

	PR target/89369
	* config/s390/s390.md (*r<noxa>sbg_<mode>_srl_bitmask,
	*r<noxa>sbg_<mode>_sll, *r<noxa>sbg_<mode>_srl): Don't construct
	pattern in a temporary buffer.
	(*r<noxa>sbg_sidi_srl): Likewise.  Always use 32 as I3 rather
	than 64-operands[2].

	* gcc.c-torture/execute/pr89369.c: New test.
	* gcc.target/s390/md/rXsbg_mode_sXl.c (rosbg_si_srl,
	rxsbg_si_srl): Expect last 3 operands 32,63,62 rather than
	34,63,62.

From-SVN: r268984

	PR target/89361
	* config/s390/s390.c (s390_indirect_branch_attrvalue,
	s390_indirect_branch_settings): Define unconditionally.
	(s390_set_current_function): Likewise, but guard the whole body except
	the s390_indirect_branch_settings call with
	#if S390_USE_TARGET_ATTRIBUTE.
	(TARGET_SET_CURRENT_FUNCTION): Redefine unconditionally.

From-SVN: r268983

	*<risbg_n>_<mode>_ior_and_lshiftrt, *<risbg_n>_sidi_ior_and_lshiftrt):
	Use HOST_WIDE_INT_M1U instead of ~(0ULL).
	(*<risbg_n>_and_subregdi_rotr, *<risbg_n>_and_subregdi_rotl): Use
	HOST_WIDE_INT_1U instead of 1ULL.
	(*pre_z10_extzv<mode>, *pre_z10_extv<mode>): Change mask type from int
	to unsigned HOST_WIDE_INT, use HOST_WIDE_INT_1U instead of 1ul.
	(*insv<mode><clobbercc_or_nocc>_appendbitsleft,
	z = (x << c) | (y >> d) splitters): Use HOST_WIDE_INT_1U
	instead of 1UL.
	(*insv<mode>_mem_reg, *insvdi_mem_reghigh): Use HOST_WIDE_INT_1U
	instead of 1ul.

From-SVN: r268982

2019-02-18  Martin Liska  <mliska@suse.cz>

	PR c++/89383
	* line-map.c (linemap_line_start): Use 1UL in order
	to not overflow.

From-SVN: r268981

2019-02-18  Martin Jambor  <mjambor@suse.cz>

	PR tree-optimization/89209
	* tree-sra.c (create_access_replacement): New optional parameter
	reg_tree.  Use it as a type if non-NULL and access type is not of
	a register type.
	(get_repl_default_def_ssa_name): New parameter REG_TYPE, pass it
	to create_access_replacement.
	(sra_modify_assign): Pass LHS type to get_repl_default_def_ssa_name.
	Check lacc is non-NULL before attempting to re-create it on the RHS.

	testsuite/
	* gcc.dg/tree-ssa/pr89209.c: New test.

From-SVN: r268980

2019-02-18  Martin Liska  <mliska@suse.cz>

	PR ipa/89306
	* cgraph.c (symbol_table::create_edge): Set m_summary_id to -1
	by default.
	(symbol_table::free_edge): Recycle m_summary_id.
	* cgraph.h (get_summary_id): New.
	(symbol_table::release_symbol): Set m_summary_id to -1
	by default.
	(symbol_table::allocate_cgraph_symbol): Recycle m_summary_id.
	* ipa-fnsummary.c (ipa_fn_summary_t): Switch from
	function_summary to fast_function_summary.
	* ipa-fnsummary.h (ipa_fn_summary_t): Likewise.
	* ipa-pure-const.c (class funct_state_summary_t):
	Switch from function_summary to fast_function_summary.
	* ipa-reference.c (class ipa_ref_var_info_summary_t): Likewise.
	(class ipa_ref_opt_summary_t): Switch from function_summary
	to fast_function_summary.
	* symbol-summary.h (class function_summary_base): New class
	that is created from base of former function_summary.
	(function_summary_base::unregister_hooks): New.
	(class function_summary): Inherit from function_summary_base.
	(class call_summary_base): New class
	that is created from base of former call_summary.
	(class call_summary): Inherit from call_summary_base.
	(struct is_same): New.
	(class fast_function_summary): New summary class.
	(class fast_call_summary): New summary class.
	* vec.h (vec_safe_grow_cleared): New function.

From-SVN: r268979

2019-02-18  Martin Liska  <mliska@suse.cz>

	* config/i386/i386.c (ix86_get_multilib_abi_name): New function.
	(TARGET_GET_MULTILIB_ABI_NAME): New macro defined.
	* doc/tm.texi: Document new target hook.
	* doc/tm.texi.in: Likewise.
	* target.def: Add new target macro.
	* gcc.c (find_fortran_preinclude_file): Do not search multilib
	suffixes.
2019-02-18  Martin Liska  <mliska@suse.cz>

	* decl.c (gfc_match_gcc_builtin): Add support for filtering
	of builtin directive based on multilib ABI name.
2019-02-18  Martin Liska  <mliska@suse.cz>

	* gfortran.dg/simd-builtins-7.f90: New test.
	* gfortran.dg/simd-builtins-7.h: New test.

From-SVN: r268978

From-SVN: r268977

2019-02-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/88299
	* resolve.c (resolve_common_blocks,resolve_common_vars): Move
	check for obsolent COMMON feature in F2018 to better place.

	PR fortran/88299
	* gfortran.dg/pr88299.f90: New test.

From-SVN: r268974

2019-02-17  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89077
	* decl.c (gfc_set_constant_character_len): Clear original string
	representation after padding has been performed to target length.

	PR fortran/89077
	* gfortran.dg/transfer_simplify_12.f90: New test.

From-SVN: r268973

re PR c++/89356 (sorry, unimplemented: mangling implicit_conv_expr in nodejs8 package since r268321)

	PR c++/89356
	* g++.dg/abi/mangle68.C: New test.
	* g++.dg/cpp0x/decltype69.C: New test.

From-SVN: r268972

	PR c++/89315
	* g++.dg/cpp0x/initlist114.C: New test.

From-SVN: r268971

From-SVN: r268970

	* constexpr.c (unshare_constructor): No longer static.
	* cp-tree.h (unshare_constructor): Declare.
	* semantics.c (finish_compound_literal): When dealing with a
	non-dependent expression in a template, return the original
	expression.  Pass LOOKUP_NO_NARROWING to digest_init_flags.

	* g++.dg/cpp0x/range-for37.C: New test.

From-SVN: r268969

This patch fixes a bug that can result in "insn does not satisfy its
constraints" if these splitters fire due to not getting ctr for the
jump insn.  Since the jump insn can have any of r,m,d,wi,c,l as the
decremented count output, it's not sufficient to check for
gpc_reg_operand (which matches VSX regs for example).  Seen after
correcting register_move_cost when the cost of gpr <-> vsx is much
lower.  Since this is a prerequisite to fixing PR89271, I'm mentioning
that PR in the ChangeLog.

The <bd>tf_<mode> split had a further bug in that it wouldn't match
if the count output was m,d,wi, or l.

	PR target/89271
	* config/rs6000/rs6000.md (<bd>_<mode> split): Check for an int
	output reg on add insn.
	(<bd>tf_<mode> split): Likewise.  Match predicates with insn.

From-SVN: r268968

From-SVN: r268967

There is no V4HI pmulhrsw in AVX512BW and V4HI/V8HI pmulhrsw don't require
AVX2.

	PR target/89372
	* config/i386/sse.md (ssedoublemode): Remove V4HI.
	(PMULHRSW): Likewise.
	(<ssse3_avx2>_pmulhrsw<mode>3): Require TARGET_SSSE3, not
	TARGET_AVX2.
	(ssse3_pmulhrswv4hi3): New expander.

From-SVN: r268964

The second and third alternatives in *vec_extractv2si_zext_mem don't
require MMX.  But the second one requires SSE2.

	* config/i386/mmx.md (*vec_extractv2si_zext_mem): Doesn't require
	MMX.  Add isa attribute.

From-SVN: r268963

	PR middle-end/88074
	* simplify.c (simplify_transformation_to_array): Run post_op
	immediately after processing corresponding row, rather than at the
	end.
	(norm2_scale): New variable.
	(add_squared): Rename to ...
	(norm2_add_squared): ... this.  Scale down operand and/or result
	if needed.
	(do_sqrt): Rename to ...
	(norm2_do_sqrt): ... this.  Handle the result == e case.  Scale up
	result and clear norm2_scale.
	(gfc_simplify_norm2): Clear norm2_scale.  Change add_squared to
	norm2_add_squared and &do_sqrt to norm2_do_sqrt.  Scale up result
	and clear norm2_scale again.

From-SVN: r268962

PR c++/88680 reports excess warnings from -Wtype-limits after the C++
FE's use of location wrappers was extended in r267272 for cases such as:

  const unsigned n = 8;
  static_assert (n >= 0 && n % 2 == 0, "");

t.C:3:18: warning: comparison of unsigned expression >= 0 is always true
  [-Wtype-limits]
    3 | static_assert (n >= 0 && n % 2 == 0, "");
      |                ~~^~~~

The root cause is that the location wrapper around "n" breaks the
suppression of the warning for the "if OP0 is a constant that is >= 0"
case.

This patch fixes it by calling fold_for_warn on OP0, extracting the
constant.

gcc/c-family/ChangeLog:
	PR c++/88680
	* c-common.c (shorten_compare): Call fold_for_warn on op0 when
	implementing -Wtype-limits.

gcc/testsuite/ChangeLog:
	PR c++/88680
	* g++.dg/wrappers/pr88680.C: New test.

From-SVN: r268961

2019-02-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71066
	* trans-decl.c (generate_coarray_sym_init):  For an array
	constructor in a DATA statement of a coarray variable, set the
	rank to 1 to avoid confusion later on.  If the constructor
	contains only one value, use that for initiailizig.

2019-02-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71066
	* gfortran.dg/coarray_data_1.f90: New test.

From-SVN: r268960

	* c-c++-common/patchable_function_entry-decl.c: Add -fno-pie on SPARC.
	* c-c++-common/patchable_function_entry-default.c: Likewise.
	* c-c++-common/patchable_function_entry-definition.c: Likewise.

From-SVN: r268958