[arm] PR target/85733 Restore be8 linking behaviour for ARMv6-M and products deriving from its capabilities

My patch last year to automate passing the be8 flag to the linker had
a nasty flaw in that I forgot entirely that the ARMv6-M architecture
did not derive its capabilities directly from the ARMv6 capability
list, but was a new group of capabilities (since it needs to leave out
the ARM -- notm -- feature bit).  The feature list defined was thus
missing the be8 bit.  Furthermore, any product derived from that
feature group consequently lacked the be8 feature as well and this
included all ARMv7 and ARMv8 parts.

The fix is embarrassingly simple...

	PR target/85733
	* config/arm/arm-cpus.in (fgroup ARMv6m): Add be8 feature.

From-SVN: r260162

2018-05-11  Sebastian Peryt  <sebastian.peryt@intel.com>

gcc/

        * common/config/i386/i386-common.c (OPTION_MASK_ISA_WAITPKG_SET,
        OPTION_MASK_ISA_WAITPKG_UNSET): New defines.
        (ix86_handle_option): Handle -mwaitpkg.
        * config.gcc: New header.
        * config/i386/cpuid.h (bit_WAITPKG): New bit.
        * config/i386/driver-i386.c (host_detect_local_cpu): Detect -mwaitpkg.
        * config/i386/i386-builtin-types.def ((UINT8, UNSIGNED, UINT64)): New
        function type.
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle
        OPTION_MASK_ISA_WAITPKG.
        * config/i386/i386.c (ix86_target_string): Add -mwaitpkg.
        (ix86_option_override_internal): Add PTA_WAITPKG.
        (ix86_valid_target_attribute_inner_p): Add -mwaitpkg.
        (enum ix86_builtins): Add IX86_BUILTIN_UMONITOR, IX86_BUILTIN_UMWAIT,
        IX86_BUILTIN_TPAUSE.
        (ix86_init_mmx_sse_builtins): Define __builtin_ia32_umonitor,
        __builtin_ia32_umwait and __builtin_ia32_tpause.
        (ix86_expand_builtin): Expand IX86_BUILTIN_UMONITOR,
        IX86_BUILTIN_UMWAIT, IX86_BUILTIN_TPAUSE.
        * config/i386/i386.h (TARGET_WAITPKG, TARGET_WAITPKG_P): New.
        * config/i386/i386.md (UNSPECV_UMWAIT, UNSPECV_UMONITOR,
        UNSPECV_TPAUSE): New.
        (umwait, umwait_rex64, umonitor_<mode>, tpause, tpause_rex64): New.
        * config/i386/i386.opt: Add -mwaitpkg.
        * config/i386/waitpkgintrin.h: New file.
        * config/i386/x86intrin.h: New header.
        * doc/invoke.texi: Add -mwaitpkg.

gcc/testsuite/

        * gcc.target/i386/tpause-1.c: New test.
        * gcc.target/i386/umonitor-1.c: New test.

From-SVN: r260161

When Arm introduced ARMv6-M there were two variants, ARMv6-M and
ARMv6S-M.  The two differed only in support for the SVC instruction.
Later on SVC was then made a mandatory part of ARMv6-M and the
ARMv6S-M name was dropped.  GCC and GAS, however still recognize both
names and at least some versions of GAS still distinguish between the
two.

To address this, this patch changes the architecture for the ARMv6-m
cortex parts (m0, m0plus, m1 and the variants will small multiply
units) to use the ARMv6S-M name in conjunction with the assembler.
This avoids problems with them rejecting code that was previously
accepted with older versions of GCC where we did not pass an explicit
architecture string through to the compiler when using -mcpu on the
command line.

	PR target/85606
	* config/arm/arm-cpus.in: Add comment that ARMv6-m and ARMv6S-m are now
	equivalent.
	(cortex-m0): Use armv6s-m isa.
	(cortex-m0plus): Likewise.
	(cortex-m1): Likewise.
	(cortex-m0.small-multiply): Likewise.
	(cortex-m0plus.small-multiply): Likewise.
	(cortex-m1.small-multiply): Likewise.

From-SVN: r260157

	PR c/85696
	* c-omp.c (c_omp_predetermined_sharing): Return
	OMP_CLAUSE_DEFAULT_SHARED for artificial vars with integral type.

	* cp-tree.h (cxx_omp_predetermined_sharing_1): New prototype.
	* cp-gimplify.c (cxx_omp_predetermined_sharing): New wrapper around
	cxx_omp_predetermined_sharing_1.  Rename old function to ...
	(cxx_omp_predetermined_sharing_1): ... this.
	* semantics.c (finish_omp_clauses): Use cxx_omp_predetermined_sharing_1
	instead of cxx_omp_predetermined_sharing.

	* c-c++-common/gomp/pr85696.c: New test.

From-SVN: r260156

	PR tree-optimization/85692
	* tree-ssa-forwprop.c (simplify_vector_constructor): Try two
	source permute as well.

	* gcc.target/i386/pr85692.c: New test.

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

From-SVN: r260155

2018-05-11  Martin Liska  <mliska@suse.cz>

        PR sanitizer/85556
	* doc/extend.texi: Document LLVM style format for no_sanitize
	attribute.
2018-05-11  Martin Liska  <mliska@suse.cz>

        PR sanitizer/85556
	* c-attribs.c (handle_no_sanitize_attribute): Iterate all
	TREE_LIST values.
2018-05-11  Martin Liska  <mliska@suse.cz>

        PR sanitizer/85556
	* c-c++-common/ubsan/attrib-6.c: New test.

From-SVN: r260154

	* decl.c (cp_finish_decl): Don't instantiate auto variable.

	(check_static_variable_definition): Allow auto.
	* constexpr.c (ensure_literal_type_for_constexpr_object): Likewise.

From-SVN: r260150

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_value.cc: Regen.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	02_assoc_legendre/check_value.cc: Regen.

From-SVN: r260149

From-SVN: r260147

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

	PR fortran/85687
	* check.c (gfc_check_rank): Check that the argument is a data object.

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

	PR fortran/85687
	* gfortran.dg/pr85687.f90: new test.

From-SVN: r260141

2018-05-10  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (mode_supports_dq_form): Rename
	mode_supports_vsx_dform_quad to mode_supports_dq_form.
	(mode_supports_vsx_dform_quad): Likewise.
	(mode_supports_vmx_dform): Move these functions to be next to the
	other mode_supports functions.
	(mode_supports_dq_form): Likewise.
	(quad_address_p): Change calls of mode_supports_vsx_dform_quad to
	mode_supports_dq_form.
	(reg_offset_addressing_ok_p): Likewise.
	(offsettable_ok_by_alignment): Likewise.
	(rs6000_legitimate_offset_address_p): Likewise.
	(legitimate_lo_sum_address_p): Likewise.
	(rs6000_legitimize_address): Likewise.
	(rs6000_legitimize_reload_address): Likewise.
	(rs6000_secondary_reload_inner): Likewise.
	(rs6000_preferred_reload_class): Likewise.
	(rs6000_output_move_128bit): Likewise.

From-SVN: r260140

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