2018-05-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85521
	* array.c (gfc_resolve_character_array_constructor): Substrings
	with upper bound smaller than lower bound are zero length strings.

2018-05-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85521
	* gfortran.dg/pr85521_1.f90: New test.
	* gfortran.dg/pr85521_2.f90: New test.

From-SVN: r260139

2018-05-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/70870
	* data.c (gfc_assign_data_value): Check that a data object does
	not also have default initialization.

2018-05-10  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/70870
	* gfortran.dg/pr70870_1.f90: New test.

From-SVN: r260138

From-SVN: r260137

	* config/i386/i386.c (ix86_expand_builtin) <case IX86_BUILTIN_RDPID>:
	Generate SImode target register for null target.
	<case IX86_BUILTIN_XGETBV>: Ditto.
	<case IX86_BUILTIN_XSETBV>: Optimize LSHIFTRT generation.
	* config/i386/xsaveintrin.h (_xgetbv): Add missing return.

testsuite/ChangeLog:

	* gcc.target/i386/xgetsetbv.c: Check also variable arguments.

From-SVN: r260135

gcc/ChangeLog:

2018-05-10  Carl Love  <cel@us.ibm.com>

	* config/rs6000/rs6000.md (prefetch): Generate ISA 2.06 instructions
	dcbtt and dcbtstt if operands[2] is 0.

From-SVN: r260134

	* cp-tree.h (DECL_CONSTRUCTOR_P): Use DECL_CXX_CONSTRUCTOR_P.

	(DECL_DESTRUCTOR_P): Use DECL_CXX_DESTRUCTOR_P.

From-SVN: r260133

	* doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
	* doc/xml/manual/debug_mode.xml: Add array and forward_list to list
	of C++11 containers with Debug Mode support.
	* doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
	* doc/html/*: Regenerate.

From-SVN: r260129

	* include/bits/regex_compiler.h (_S_cache_size): Change from
	function to variable.

From-SVN: r260128

	* class.c (build_base_path): Check COMPLETE_TYPE_P for source type.

From-SVN: r260127

	* call.c (reference_binding): List-initializing a reference
	temporary is copy-list-initialization.

From-SVN: r260126

From-SVN: r260125

	* pt.c (instantiate_decl): Make sure we aren't trying to do a nested
	instantiation in template context.

From-SVN: r260124

From-SVN: r260123

From-SVN: r260122

	* decl.c (make_typename_type): s/parameters/arguments/.

	* parser.c (cp_parser_nested_name_specifier_opt): Likewise.
	* pt.c (make_pack_expansion): Correct error message.

From-SVN: r260121

	PR fortran/85735
	* options.c (gfc_post_options): Set main_input_filename.

From-SVN: r260120

re PR c++/85662 ("error: non-constant condition for static assertion" from __builtin_offsetof in C++)

	PR c++/85662
	* c-common.h (fold_offsetof_1): Removed.
	(fold_offsetof): Add TYPE argument defaulted to size_type_node and
	CTX argument defaulted to ERROR_MARK.
	* c-common.c (fold_offsetof_1): Renamed to ...
	(fold_offsetof): ... this.  Remove wrapper function.  Add TYPE
	argument, convert the pointer constant to TYPE and use size_binop
	with PLUS_EXPR instead of fold_build_pointer_plus if type is not
	a pointer type.  Adjust recursive calls.

	* c-fold.c (c_fully_fold_internal): Use fold_offsetof rather than
	fold_offsetof_1, pass TREE_TYPE (expr) as TYPE to it and drop the
	fold_convert_loc.
	* c-typeck.c (build_unary_op): Use fold_offsetof rather than
	fold_offsetof_1, pass argtype as TYPE to it and drop the
	fold_convert_loc.

	* cp-gimplify.c (cp_fold): Use fold_offsetof rather than
	fold_offsetof_1, pass TREE_TYPE (x) as TYPE to it and drop the
	fold_convert.

	* g++.dg/ext/offsetof2.C: New test.

From-SVN: r260119

	PR target/85693
	* config/i386/sse.md (usadv64qi): New expander.

From-SVN: r260117

2018-05-10  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/54613
	* intrinsic.texi: Document BACK for MINLOC and MAXLOC.

From-SVN: r260116

2018-05-10  Edward Smith-Rowland  <3dw4rd@verizon.net>

	PR libstdc++/83140 - assoc_legendre returns negated value when m is odd
	* include/tr1/legendre_function.tcc (__assoc_legendre_p): Add __phase
	argument defaulted to +1.  Doxy comments on same.
	* testsuite/special_functions/02_assoc_legendre/
	check_assoc_legendre.cc: Regen.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	02_assoc_legendre/check_tr1_assoc_legendre.cc: Regen.

From-SVN: r260115

	PR libstdc++/85729
	* include/bits/c++config.h (__replacement_assert): Add linkage
	specification.
	* include/bits/std_abs.h: Add comment to closing brace of block.
	* include/c_global/cstddef: Add linkage specification.
	* include/c_global/cstring: Likewise.
	* include/c_global/cwchar: Likewise.

From-SVN: r260114

re PR fortran/68846 (Pointer function as LValue doesn't work when the assignment regards a dummy argument.)

2018-05-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/68846
	PR fortran/70864
	* resolve.c (get_temp_from_expr): The temporary must not have
	dummy or intent attributes.

2018-05-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/68846
	* gfortran.dg/temporary_3.f90 : New test.

	PR fortran/70864
	* gfortran.dg/temporary_2.f90 : New test.

From-SVN: r260113

2018-05-10  Martin Liska  <mliska@suse.cz>

	PR bootstrap/64914
	* bootstrap-ubsan.mk: Define UBSAN_BOOTSTRAP.
2018-05-10  Martin Liska  <mliska@suse.cz>

	PR bootstrap/64914
	* md5.c: Use strict alignment with UBSAN_BOOTSTRAP.

From-SVN: r260112

This removes the -maltivec=be and -maltivec=le options.  Those were
deprecated in GCC 8.

Altivec will keep working on both BE and LE; it is just the BE-vectors-
on-LE that is removed (the other way around was never supported).

The main change is replacing VECTOR_ELT_ORDER_BIG by BYTES_BIG_ENDIAN
(and then simplifying).


	* config/rs6000/altivec.md (altivec_vmrghb, altivec_vmrghh,
	altivec_vmrghw, altivec_vmrglb, altivec_vmrglh, altivec_vmrglw): Remove
	-maltivec=be support.
	(vec_widen_umult_even_v16qi, vec_widen_smult_even_v16qi,
	vec_widen_umult_even_v8hi, vec_widen_smult_even_v8hi,
	vec_widen_umult_even_v4si, vec_widen_smult_even_v4si,
	vec_widen_umult_odd_v16qi, vec_widen_smult_odd_v16qi,
	vec_widen_umult_odd_v8hi, vec_widen_smult_odd_v8hi,
	vec_widen_umult_odd_v4si, vec_widen_smult_odd_v4si, altivec_vpkpx,
	altivec_vpks<VI_char>ss, altivec_vpks<VI_char>us,
	altivec_vpku<VI_char>us, altivec_vpku<VI_char>um, altivec_vsum2sws,
	altivec_vsumsws): Adjust.
	(altivec_vspltb *altivec_vspltb_internal, altivec_vsplth,
	*altivec_vsplth_internal, altivec_vspltw, *altivec_vspltw_internal,
	altivec_vspltsf, *altivec_vspltsf_internal): Remove -maltivec=be
	support.
	(altivec_vperm_<mode>, altivec_vperm_<mode>_uns,
	altivec_vupkhs<VU_char>, altivec_vupkls<VU_char>, altivec_vupkhpx,
	altivec_vupklpx, altivec_lvsl, altivec_lvsr): Adjust.
	(altivec_lve<VI_char>x): Delete expand.
	(*altivec_lve<VI_char>x_internal): Rename to...
	(altivec_lve<VI_char>x): ... this.
	(altivec_lvxl_<mode>): Delete expand.
	(*altivec_lvxl_<mode>_internal): Rename to ...
	(altivec_lvxl_<mode>): ... this.
	(altivec_stvxl_<mode>): Delete expand.
	(*altivec_stvxl_<mode>_internal): Rename to ...
	(altivec_stvxl_<mode>): ... this.
	(altivec_stve<VI_char>x): Delete expand.
	(*altivec_stve<VI_char>x_internal): Rename to ...
	(altivec_stve<VI_char>x): ... this.
	(doublee<mode>2, unsdoubleev4si2, doubleo<mode>2, unsdoubleov4si2,
	doubleh<mode>2, unsdoublehv4si2, doublel<mode>2, unsdoublelv4si2,
	reduc_plus_scal_<mode>): Adjust.
	* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Adjust
	comment.
	(rs6000_cpu_cpp_builtins): Adjust.
	(altivec_resolve_overloaded_builtin): Remove -maltivec=be support.
	* config/rs6000/rs6000-protos.h (altivec_expand_lvx_be,
	altivec_expand_stvx_be, altivec_expand_stvex_be): Delete.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Remove
	-maltivec=be support.
	(rs6000_split_vec_extract_var): Adjust.
	(rs6000_split_v4si_init): Adjust.
	(swap_selector_for_mode): Delete.
	(altivec_expand_lvx_be, altivec_expand_stvx_be,
	altivec_expand_stvex_be): Delete.
	(altivec_expand_lv_builtin, altivec_expand_stv_builtin): Remove
	-maltivec=be support.
	(rs6000_gimple_fold_builtin): Ditto.
	(rs6000_generate_float2_double_code, rs6000_generate_float2_code):
	Adjust.
	* config/rs6000/rs6000.h (VECTOR_ELT_ORDER_BIG): Delete.
	(TARGET_DIRECT_MOVE_64BIT): Adjust.
	* config/rs6000/rs6000.md (split for extendsidi2 for vectors): Adjust.
	* config/rs6000/rs6000.opt (maltivec=le, maltivec=be): Delete.
	* config/rs6000/vsx.md (floate<mode>, unsfloatev2di, floato<mode>,
	unsfloatov2di, vsignedo_v2df, vsignede_v2df, vunsignedo_v2df,
	vunsignede_v2df, vsx_extract_<mode>_p9, *vsx_extract_si,
	*vsx_extract_<mode>_p8, *vsx_extract_si_<uns>float_df,
	*vsx_extract_si_<uns>float_<mode>, vsx_set_<mode>_p9, vsx_set_v4sf_p9,
	*vsx_insert_extract_v4sf_p9, *vsx_insert_extract_v4sf_p9_2, and an
	anonymous split): Adjust.
	(vsx_mergel_<mode>, vsx_mergeh_<mode>): Remove -maltivec=be support.
	(vsx_xxspltd_<mode>, extract4b, insert4b): Adjust.

gcc/testsuite/
	* gcc.dg/vmx/extract-be-order.c: Delete testcase.
	* gcc.dg/vmx/extract-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/insert-be-order.c: Delete testcase.
	* gcc.dg/vmx/insert-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/ld-be-order.c: Delete testcase.
	* gcc.dg/vmx/ld-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/lde-be-order.c: Delete testcase.
	* gcc.dg/vmx/ldl-be-order.c: Delete testcase.
	* gcc.dg/vmx/ldl-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/merge-be-order.c: Delete testcase.
	* gcc.dg/vmx/merge-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/mult-even-odd-be-order.c: Delete testcase.
	* gcc.dg/vmx/pack-be-order.c: Delete testcase.
	* gcc.dg/vmx/perm-be-order.c: Delete testcase.
	* gcc.dg/vmx/splat-be-order.c: Delete testcase.
	* gcc.dg/vmx/splat-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/st-be-order.c: Delete testcase.
	* gcc.dg/vmx/st-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/ste-be-order.c: Delete testcase.
	* gcc.dg/vmx/stl-be-order.c: Delete testcase.
	* gcc.dg/vmx/stl-vsx-be-order.c: Delete testcase.
	* gcc.dg/vmx/sum2s-be-order.c: Delete testcase.
	* gcc.dg/vmx/unpack-be-order.c: Delete testcase.
	* gcc.dg/vmx/vsums-be-order.c: Delete testcase.
	* gcc.target/powerpc/vec-setup-be-double.c: Delete testcase.
	* gcc.target/powerpc/vec-setup-be-long.c: Delete testcase.
	* gcc.target/powerpc/vec-setup.h: Remove -maltivec=be support.

From-SVN: r260109

configure.ac (gcc_gxx_include_dir_add_sysroot): Set it to 1 only when --with-gxx-include-dir is also specified.

	* configure.ac (gcc_gxx_include_dir_add_sysroot): Set it to 1 only
	when --with-gxx-include-dir is also specified.
	* configure: Regenerate.

From-SVN: r260108

	PR tree-optimization/85699
	* gcc.dg/nextafter-1.c (NO_LONG_DOUBLE): Define if not defined.  Use
	!NO_LONG_DOUBLE instead of __LDBL_MANT_DIG__ != 106.
	* gcc.dg/nextafter-2.c: Include stdlib.h.  For glibc < 2.24 define
	NO_LONG_DOUBLE to 1 before including nextafter-1.c.

From-SVN: r260107

	PR c++/85400
cp/
	* decl2.c (adjust_var_decl_tls_model): New static function.
	(comdat_linkage): Call it on a variable.
	(maybe_make_one_only): Likewise.
c-family/
	* c-attribs.c (handle_visibility_attribute): Do not set no_add_attrs.

From-SVN: r260106

From-SVN: r260104

    
    Several recent changes to the gc version of cmd/go improve the
    gofrontend support. These changes are partially copies of existing
    gofrontend differences, and partially new code. This CL makes the
    gofrontend match the upstream code.
    
    The changes included here come from:
        https://golang.org/cl/111575
        https://golang.org/cl/111595
        https://golang.org/cl/111635
        https://golang.org/cl/111636
    
    For the record, the following recent gc changes are based on code
    already present in the gofrontend repo:
        https://golang.org/cl/110915
        https://golang.org/cl/111615
    
    For the record, a gc change, partially based on earlier gofrontend
    work, also with new gc code, was already copied to gofrontend repo in
    CL 111099:
        https://golang.org/cl/111097
    
    This moves the generated list of standard library packages from
    cmd/go/internal/load to go/build.
    
    Reviewed-on: https://go-review.googlesource.com/112475

gotools/:
	* Makefile.am (check-go-tool): Don't copy zstdpkglist.go.
	* Makefile.in: Rebuild.

From-SVN: r260097

	gcc/
	PR target/84797
	* config.gcc (riscv*-*-*): Handle --with-multilib-list.
	* config/riscv/t-withmultilib: New.
	* config/riscv/withmultilib.h: New.
	* doc/install.texi: Document RISC-V --with-multilib-list support.

From-SVN: r260096

2018-05-09  François Dumont  <fdumont@gcc.gnu.org>

	* include/debug/safe_iterator.h (_Safe_iterator<>::_M_constant()):
	Rename in...
	(_Safe_iterator<>::_S_constant()): ...that.
	* include/debug/safe_local_iterator.h
	(_Safe_local_iterator<>::_M_constant()): Rename in...
	(_Safe_local_iterator<>::_S_constant()): ...that.
	* include/debug/formatter.h: Remove bits/cpp_type_traits.h include.
	(_Iterator_state::__rbegin): New.
	(_Iterator_state::__rmiddle): New.
	(_Iterator_state::__rend): New.
	(_Parameter::_Parameter(const _Safe_iterator<>&, const char*,
	_Is_iterator)): Use _Safe_iterator<>::_S_constant. Grab normal underlying
	iterator type.
	(_Parameter::_Parameter(const _Safe_local_iterator<>&, const char*,
	_Is_iterator)): Likewise.
	(_Parameter::_S_reverse_state(_Iterator_state)): New.
        (_Parameter(__gnu_cxx::__normal_iterator<> const&, const char*,
	_Is_iterator)): New.
	(_Parameter(std::reverse_iterator<> const&, const char*,
	_Is_iterator)): New.
	(_Parameter(std::reverse_iterator<_Safe_iterator<>> const&,
	const char*, _Is_iterator)): New.
	(_Parameter(std::move_iterator<> const&, const char*, _Is_iterator):
	New.
	(_Parameter(std::move_iterator<_Safe_iterator<>> const&, const char*,
	_Is_iterator)): New.
	* testsuite/24_iterators/move_iterator/debug_neg.cc: New.
	* testsuite/24_iterators/normal_iterator/debug_neg.cc: New.
	* testsuite/24_iterators/reverse_iterator/debug_neg.cc: New.

From-SVN: r260093

2018-05-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85713
	* g++.dg/cpp1y/lambda-generic-85713.C: New.

From-SVN: r260092

gcc/testsuite/ChangeLog:

2018-05-09 Carl Love  <cel@us.ibm.com>
	* gcc.target/powerpc/builtins-8-runnable.c: New builtin test file.

From-SVN: r260090

/cp
2018-05-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85713
	Revert:
	2018-05-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84588
	* parser.c (cp_parser_parameter_declaration_list): When the
	entire parameter-declaration-list is erroneous maybe call
	abort_fully_implicit_template.

/testsuite
2018-05-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85713
	Revert:
	2018-05-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84588
	* g++.dg/cpp1y/pr84588.C: New.

From-SVN: r260087

/cp
2018-05-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85713
	Revert:
	2018-05-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84588
	* parser.c (cp_parser_parameter_declaration_list): When the
	entire parameter-declaration-list is erroneous maybe call
	abort_fully_implicit_template.

/testsuite
2018-05-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/85713
	Revert:
	2018-05-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84588
	* g++.dg/cpp1y/pr84588.C: New.

From-SVN: r260086

2018-05-09  Tom de Vries  <tom@codesourcery.com>

	PR libgomp/82901
	* oacc-parallel.c (GOACC_declare): Use GOMP_ASYNC_SYNC as async argument
	to GOACC_enter_exit_data.

From-SVN: r260085

config/
	* ax_pthread.m4: Add file

From-SVN: r260083

From-SVN: r260082

2018-05-09  Tom de Vries  <tom@codesourcery.com>

	PR libgomp/83792
	* oacc-int.h (async_valid_stream_id_p, async_valid_p)
	(async_synchronous_p): New function.
	* oacc-async.c (acc_async_test, acc_wait, acc_wait_all_async): Use
	async_valid_p.
	* oacc-cuda.c (acc_get_cuda_stream, acc_set_cuda_stream): Use
	async_valid_stream_id_p.
	* oacc-mem.c (gomp_acc_remove_pointer): Use async_synchronous_p.
	* oacc-parallel.c (GOACC_parallel_keyed): Same.

From-SVN: r260081

To satisfy the CopyConstructible requirement a callable object stored in
a std::function must behave the same when copied from a const or
non-const source. If copying a non-const object doesn't produce an
equivalent copy then the behaviour is undefined. But we can make our
std::function more tolerant of such objects by ensuring we always copy
from a const lvalue.

Additionally use an if constexpr statement in the _M_get_pointer
function to avoid unnecessary instantiations in the discarded branch.

	* include/bits/std_function.h (_Base_manager::_M_get_pointer):
	Use constexpr if in C++17 mode.
	(_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
	Copy from const object.
	* testsuite/20_util/function/cons/non_copyconstructible.cc: New.

From-SVN: r260080