PR libstdc++/81706
	* attribs.c (attribute_value_equal): Use omp_declare_simd_clauses_equal
	for comparison of OMP_CLAUSEs regardless of flag_openmp{,_simd}.
	(duplicate_one_attribute, copy_attributes_to_builtin): New functions.
	* attribs.h (duplicate_one_attribute, copy_attributes_to_builtin): New
	declarations.

	* c-decl.c (merge_decls): Copy "omp declare simd" attributes from
	newdecl to corresponding __builtin_ if any.

	* decl.c (duplicate_decls): Copy "omp declare simd" attributes from
	newdecl to corresponding __builtin_ if any.

	* gcc.target/i386/pr81706.c: New test.
	* g++.dg/ext/pr81706.C: New test.

From-SVN: r254069

2017-10-25  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (need_eh_cleanup, need_ab_cleanup, el_to_remove,
	el_to_fixup, el_todo, el_avail, el_avail_stack, eliminate_avail,
	eliminate_push_avail, eliminate_insert): Move inside...
	(class eliminate_dom_walker): ... this class in preparation
	of move.
	(fini_eliminate): Remove by merging with ...
	(eliminate): ... this function.  Adjust for class changes.
	(pass_pre::execute): Remove fini_eliminate call.
	(pass_fre::execute): Likewise.

From-SVN: r254068

	PR libstdc++/82706
	* testsuite/27_io/filesystem/operations/permissions.cc: Fix test.

From-SVN: r254067

From-SVN: r254066

2017-10-24  François Dumont  <fdumont@gcc.gnu.org>

	* testsuite/lib/libstdc++.exp (check_v3_target_normal_mode): Add
	c++config.h include.
	(check_v3_target_normal_namespace): New.
	* testsuite/lib/dg-options.exp (dg-require-normal-namespace): New.
	* testsuite/18_support/headers/limits/synopsis.cc: Add latter.
	* testsuite/20_util/from_chars/requirements.cc: Likewise.
	* testsuite/20_util/headers/functional/synopsis.cc: Likewise.
	* testsuite/20_util/headers/memory/synopsis.cc: Likewise.
	* testsuite/20_util/headers/utility/synopsis.cc: Likewise.
	* testsuite/20_util/to_chars/requirements.cc: Likewise.
	* testsuite/21_strings/headers/string/synopsis.cc: Likewise.
	* testsuite/22_locale/headers/locale/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/bitset/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/deque/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/forward_list/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/list/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/map/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/queue/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/set/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/stack/synopsis.cc: Likewise.
	* testsuite/23_containers/headers/vector/synopsis.cc: Likewise.
	* testsuite/23_containers/map/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/23_containers/multimap/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/23_containers/multiset/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/23_containers/set/modifiers/erase/abi_tag.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis_c++11.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis_c++14.cc: Likewise.
	* testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Likewise.
	* testsuite/26_numerics/complex/abi_tag.cc: Likewise.
	* testsuite/26_numerics/headers/complex/synopsis.cc: Likewise.
	* testsuite/26_numerics/headers/valarray/synopsis.cc: Likewise.
	* testsuite/27_io/headers/fstream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/ios/synopsis.cc: Likewise.
	* testsuite/27_io/headers/istream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/ostream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/sstream/synopsis.cc: Likewise.
	* testsuite/27_io/headers/streambuf/synopsis.cc: Likewise.

From-SVN: r254060

re PR target/82460 (AVX512: choose between vpermi2d and vpermt2d to save mov instructions.  Also, fails to optimize away shifts before shuffle)

	PR target/82460
	* config/i386/sse.md (UNSPEC_VPERMI2, UNSPEC_VPERMI2_MASK): Remove.
	(VPERMI2, VPERMI2I): New mode iterators.
	(<avx512>_vpermi2var<mode>3_maskz): Remove 3 define_expand patterns.
	(<avx512>_vpermi2var<mode>3<sd_maskz_name>): Remove 3 define_insn
	patterns.
	(<avx512>_vpermi2var<mode>3_mask): New define_expand using VPERMI2
	mode iterator.  Remove 3 old define_insn patterns.
	(*<avx512>_vpermi2var<mode>3_mask): 2 new define_insn patterns.
	(<avx512>_vpermt2var<mode>3_maskz): Adjust 1 define_expand to use
	VPERMI2 mode iterator, remove the other two expanders.
	(<avx512>_vpermt2var<mode>3<sd_maskz_name>): Adjust 1 define_insn
	to use VPERMI2 mode iterator, add another alternative for vpermi2*
	instructions, remove the other two patterns.
	(<avx512>_vpermt2var<mode>3_mask): Adjust 1 define_insn to use VPERMI2
	mode iterator, remove the other two patterns.
	* config/i386/i386.c (ix86_expand_vec_perm_vpermi2): Renamed to ...
	(ix86_expand_vec_perm_vpermt2): ... this.  Swap mask and op0
	arguments, use gen_*vpermt2* expanders instead of gen_*vpermi2*
	and adjust argument order accordingly.
	(ix86_expand_vec_perm): Adjust caller.
	(expand_vec_perm_1): Likewise.
	(expand_vec_perm_vpermi2_vpshub2): Rename to ...
	(expand_vec_perm_vpermt2_vpshub2): ... this.
	(ix86_expand_vec_perm_const_1): Adjust caller.
	(ix86_vectorize_vec_perm_const_ok): Adjust comments.

	* gcc.target/i386/pr82460-1.c: New test.
	* gcc.target/i386/pr82460-2.c: New test.
	* gcc.target/i386/avx512f-vpermt2pd-1.c: Adjust scan-assembler*
	regexps to allow vpermt2* to vpermi2* replacement or vice versa
	where possible.
	* gcc.target/i386/avx512vl-vpermt2pd-1.c: Likewise.
	* gcc.target/i386/avx512f-vpermt2d-1.c: Likewise.
	* gcc.target/i386/vect-pack-trunc-2.c: Likewise.
	* gcc.target/i386/avx512vl-vpermt2ps-1.c: Likewise.
	* gcc.target/i386/avx512vl-vpermt2q-1.c: Likewise.
	* gcc.target/i386/avx512f-vpermt2ps-1.c: Likewise.
	* gcc.target/i386/avx512vl-vpermt2d-1.c: Likewise.
	* gcc.target/i386/avx512bw-vpermt2w-1.c: Likewise.
	* gcc.target/i386/avx512vbmi-vpermt2b-1.c: Likewise.
	* gcc.target/i386/avx512f-vpermt2q-1.c: Likewise.

From-SVN: r254059

	PR target/82370
	* config/i386/sse.md (VIMAX_AVX2): Remove V4TImode.
	(VIMAX_AVX2_AVX512BW, VIMAX_AVX512VL): New mode iterators.
	(vec_shl_<mode>): Remove unused expander.
	(avx512bw_<shift_insn><mode>3): New define_insn.
	(<sse2_avx2>_ashl<mode>3, <sse2_avx2>_lshr<mode>3): Replaced by ...
	(<sse2_avx2>_<shift_insn><mode>3): ... this.  New define_insn.

	* gcc.target/i386/pr82370.c: New test.

From-SVN: r254058

2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82466
	* doc/invoke.texi ([Wbuiltin-declaration-mismatch]): Extend
	description.

/cp
2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82466
	* decl.c (duplicate_decls): Warn for built-in functions declared as
	non-function, use OPT_Wbuiltin_declaration_mismatch.

	* decl.c (duplicate_decls): Avoid redundant '+' in warning_at.

/c
2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82466
	* c-decl.c (diagnose_mismatched_decls): Use
	OPT_Wbuiltin_declaration_mismatch.

/testsuite
2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82466
	* c-c++-common/Wbuiltin-declaration-mismatch-1.c: New.
	* c-c++-common/Wno-builtin-declaration-mismatch-1.c: Likewise.
	* g++.dg/warn/Wbuiltin_declaration_mismatch-1.C: Likewise.
	* g++.dg/parse/builtin2.C: Adjust.
	* g++.old-deja/g++.mike/p811.C: Likewise.

From-SVN: r254057

r253236 broke AArch64 bootstrap. Earlier revision r253071 changed scheduling
behaviour on AArch64 as autopref scheduling no longer checks the base.

This patch fixes the bootstrap failure and cleans up autopref scheduling.
The code is greatly simplified.  Sort accesses on the offset first, and
only if the offsets are the same fall back to other comparisons in
rank_for_schedule.  This doesn't at all restore the original behaviour
since we no longer compare the base address, but it now defines a total
sorting order.  More work will be required to improve the sorting so
that only loads/stores with the same base are affected.

    gcc/
	PR rtl-optimization/82396
	* gcc/haifa-sched.c (ready_sort_real): Remove qsort workaround.
	(autopref_multipass_init): Simplify initialization.
	(autopref_rank_data): Simplify sort order.
	* gcc/sched-int.h (autopref_multipass_data_): Remove
	multi_mem_insn_p, min_offset and max_offset.

From-SVN: r254056

To fix PR60580 simplify the logic in aarch64_override_options_after_change_1 (). 
If the frame pointer is enabled, set it to a special value that behaves similar
to frame pointer omission.  If we don't do this all leaf functions will get a
frame pointer even if flag_omit_leaf_frame_pointer is set.

If flag_omit_frame_pointer has this special value, we must force the frame
pointer if not in a leaf function.  We also need to force it in a leaf function
if flag_omit_frame_pointer is not set or if LR is used.

Doing this allows both -fomit-frame-pointer and -fomit-leaf-frame-pointer to be
independently set and changed in each function with the expected behaviour.

    gcc/
	PR middle-end/60580
	* config/aarch64/aarch64.c (aarch64_frame_pointer_required)
	Check special value of flag_omit_frame_pointer.
	(aarch64_can_eliminate): Likewise.
	(aarch64_override_options_after_change_1): Simplify handling of
	-fomit-frame-pointer and -fomit-leaf-frame-pointer.

From-SVN: r254052

/cp
2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80991
	* pt.c (value_dependent_expression_p, [TRAIT_EXPR]): Handle
	a TREE_LIST as TRAIT_EXPR_TYPE2.

/testsuite
2017-10-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80991
	* g++.dg/ext/is_trivially_constructible5.C: New.

From-SVN: r254051

	* gcc.target/i386/387-ficom-1.c: Allow for ficomp without s
	suffix.
	* gcc.target/i386/387-ficom-2.c: Likewise.

From-SVN: r254050

	* gcc.target/i386/cet-sjlj-3.c: Allow for emtpy user label prefix
	in setjmp call.

From-SVN: r254049

2017-10-24  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82697
	* tree-ssa-phiopt.c (cond_store_replacement): Use alias-set
	zero for conditional load and unconditional store.

	* gcc.dg/torture/pr82697.c: New testcase.

From-SVN: r254047

/cp
2017-10-24  Mukesh Kapoor  <mukesh.kapoor@oracle.com>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82307
	* cvt.c (type_promotes_to): Implement C++17, 7.6/4, about unscoped
	enumeration type whose underlying type is fixed.

/testsuite
2017-10-24  Mukesh Kapoor  <mukesh.kapoor@oracle.com>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/82307
	* g++.dg/cpp0x/enum35.C: New.
	* g++.dg/cpp0x/enum36.C: Likewise.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r254046

	* config/locale/gnu/c_locale.cc [_GLIBCXX_LONG_DOUBLE_COMPAT]: Ignore
	-Wattribute-alias warnings.
	* src/c++11/istream-inst.cc: Likewise.
	* src/c++11/locale-inst.cc: Likewise.
	* src/c++11/ostream-inst.cc: Likewise.
	* src/c++11/wlocale-inst.cc: Likewise.
	* src/c++98/hash-long-double-tr1-aux.cc: Likewise.

From-SVN: r254045

	* include/bits/string_view.tcc (find_first_of, find_last_of)
	(find_first_not_of, find_last_not_of): Add noexcept.
	* include/std/string_view (basic_string_view(const _CharT*))
	(basic_string_view(const _CharT*, size_type))
	(front, back, remove_prefix, remove_suffix, find, rfind)
	(find_first_of, find_first_not_of): Add noexcept.
	(at(size_type), _S_compare(size_type, size_type)): Replace conditional
	expressions with if statements.
	(copy(_CharT*, size_type, size_type), substr(size_type, size_type)):
	Use _M_check for length checks.
	(compare(basic_string_view)): Reformat.
	(_M_check(size_type, const char)): Add noexcept(false).
	(_M_limit(size_type, size_type)): Use noexcept not _GLIBCXX_NOEXCEPT.

From-SVN: r254044

Bootstrap GCC with Intel CET by configuring GCC with

--with-build-config="bootstrap-cet bootstrap-debug"

Tested on Linux/i686 and Linux/x86-64.

config/

	* bootstrap-cet.mk: New file.

gcc/

	* doc/install.texi: Document bootstrap-cet.

From-SVN: r254043

The problem with making discarded symbols hidden is that the
non-default visibility is sticky.  When symbols other than the
__gnu_lto ones are discarded that turns out to be a bad idea.

	PR lto/82687
	PR lto/82575
	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	Only make __gnu_lto symbols hidden.  Delete outdated comment.
	Silence ISO C warning.

From-SVN: r254042

	PR libstdc++/82685
	* include/experimental/string_view (operator""sv): Add noexcept.
	* include/std/string_view (operator""sv): Likewise.

From-SVN: r254041

There is no need to insert ENDBR instruction at function entrance if
function is only called directly.

gcc/

	PR target/82659
	* config/i386/i386.c (rest_of_insert_endbranch): Don't insert
	ENDBR instruction at function entrance if function is only
	called directly.

gcc/testsuite/

	PR target/82659
	* gcc.target/i386/cet-label-2.c: New test.
	* gcc.target/i386/cet-sjlj-4.c: Likewise.
	* gcc.target/i386/cet-sjlj-5.c: Likewise.
	* gcc.target/i386/cet-switch-3.c: Likewise.
	* gcc.target/i386/pr82659-1.c: Likewise.
	* gcc.target/i386/pr82659-2.c: Likewise.
	* gcc.target/i386/pr82659-3.c: Likewise.
	* gcc.target/i386/pr82659-4.c: Likewise.
	* gcc.target/i386/pr82659-5.c: Likewise.
	* gcc.target/i386/pr82659-6.c: Likewise.

From-SVN: r254040

	PR target/82628
	* config/i386/i386.md (addcarry<mode>, subborrow<mode>): Change
	patterns to better describe from which operation the CF is computed.
	(addcarry<mode>_0, subborrow<mode>_0): New patterns.
	* config/i386/i386.c (ix86_expand_builtin) <case handlecarry>: Pass
	one LTU with [DT]Imode and another one with [SD]Imode.  If arg0
	is 0, use _0 suffixed expanders instead of emitting a comparison
	before it.

From-SVN: r254039

gcc/
	* config/i386/i386.md(*movsf_internal, *movdf_internal):
	Avoid 512-bit AVX modes for TARGET_PREFER_AVX256.

From-SVN: r254038

	PR middle-end/82569
	* tree-outof-ssa.h (always_initialized_rtx_for_ssa_name_p): Delete.
	* expr.c (expand_expr_real_1) <expand_decl_rtl>: Revert latest change.
	* loop-iv.c (iv_get_reaching_def): Likewise.
	* cfgexpand.c (expand_one_ssa_partition): Initialize the RTX if the 
	variable is promoted and the partition contains undefined values.

From-SVN: r254037

2017-10-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82672
	* graphite-isl-ast-to-gimple.c (graphite_copy_stmts_from_block):
	Fold the stmt if we propagated into it.

	* gfortran.dg/graphite/pr82672.f90: New testcase.

From-SVN: r254036

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/testsuite/
	* gcc.target/nios2/cdx-branch.c:  Fix broken test.
	* gcc.target/nios2/lo-addr-bypass.c: New.
	* gcc.target/nios2/lo-addr-char.c: New.
	* gcc.target/nios2/lo-addr-int.c: New.
	* gcc.target/nios2/lo-addr-pic.c: New.
	* gcc.target/nios2/lo-addr-short.c: New.
	* gcc.target/nios2/lo-addr-tls.c: New.
	* gcc.target/nios2/lo-addr-uchar.c: New.
	* gcc.target/nios2/lo-addr-ushort.c: New.
	* gcc.target/nios2/lo-addr-volatile.c: New.

From-SVN: r254035

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.c (nios2_rtx_costs): Make costs better
	reflect reality.
	(nios2_address_cost): Define.
	(nios2_legitimize_address): Recognize (exp + constant) directly.
	(TARGET_ADDRESS_COST): Define.

From-SVN: r254034

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2-protos.h (nios2_large_constant_p): Declare.
	(nios2_symbolic_memory_operand_p): Declare.
	(nios2_split_large_constant): Declare.
	(nios2_split_symbolic_memory_operand): Declare.
	* config/nios2/nios2.c: Adjust includes.
	(nios2_symbolic_constant_allowed): New.
	(nios2_symbolic_constant_p): New.
	(nios2_plus_symbolic_constant_p): New.
	(nios2_valid_addr_expr_p): Recognize addresses involving 
	symbolic constants.
	(nios2_legitimate_address_p): Likewise, also LO_SUM.
	(nios2_symbolic_memory_operand_p): New.
	(nios2_large_constant_p): New.
	(nios2_split_large_constant): New.
	(nios2_split_plus_large_constant): New.
	(nios2_split_symbolic_memory_operand): New.
	(nios2_legitimize_address): Code refactoring.  Handle addresses
	involving symbolic constants.
	(nios2_emit_move_sequence): Likewise.
	(nios2_print_operand): Improve error output.
	(nios2_print_operand_address): Handle LO_SUM.
	(nios2_cdx_narrow_form_p): Likewise.
	* config/nios2/nios2.md (movqi_internal): Add splitter for memory
	operands involving symbolic constants.
	(movhi_internal, movsi_internal): Likewise.
	(zero_extendhisi2, zero_extendqi<mode>2): Likewise.
	(extendhisi2, extendqi<mode>2): Likewise.

From-SVN: r254033

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* tree-pass.h (PROP_rtl_split_insns): Define.
	* recog.c (pass_data_split_all_insns): Provide PROP_rtl_split_insns.

From-SVN: r254032

2017-10-23  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.c (TARGET_LRA_P): Don't override.

From-SVN: r254031

From-SVN: r254030

re PR c++/80449 (ICE reporting failed partial class template specialization class template argument deduction)

/cp
2017-10-23  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80449
	* semantics.c (finish_compound_literal): Check do_auto_deduction
	return value for error_mark_node.

/testsuite
2017-10-23  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80449
	* g++.dg/cpp1z/class-deduction46.C: New.

From-SVN: r254026

	PR debug/82630
	* target.def (const_not_ok_for_debug_p): Default to
	default_const_not_ok_for_debug_p instead of hook_bool_rtx_false.
	* targhooks.h (default_const_not_ok_for_debug_p): New declaration.
	* targhooks.c (default_const_not_ok_for_debug_p): New function.
	* dwarf2out.c (const_ok_for_output_1): Only reject UNSPECs for
	which targetm.const_not_ok_for_debug_p returned true.
	* config/arm/arm.c (arm_const_not_ok_for_debug_p): Return true
	for UNSPECs.
	* config/powerpcspe/powerpcspe.c (rs6000_const_not_ok_for_debug_p):
	Likewise.
	* config/rs6000/rs6000.c (rs6000_const_not_ok_for_debug_p): Likewise.
	* config/i386/i386.c (ix86_delegitimize_address_1): Don't delegitimize
	UNSPEC_GOTOFF with addend into addend - _GLOBAL_OFFSET_TABLE_ + symbol
	if !base_term_p.
	(ix86_const_not_ok_for_debug_p): New function.
	(i386_asm_output_addr_const_extra): Handle UNSPEC_GOTOFF.
	(TARGET_CONST_NOT_OK_FOR_DEBUG_P): Redefine.

	* g++.dg/guality/pr82630.C: New test.

From-SVN: r254025

gcc/ChangeLog:
	PR bootstrap/82610
	* system.h: Conditionally include "unique-ptr.h" if
	INCLUDE_UNIQUE_PTR is defined.
	* unique-ptr-tests.cc: Remove include of "unique-ptr.h" in favor
	of defining INCLUDE_UNIQUE_PTR before including "system.h".

include/ChangeLog:
	* unique-ptr.h: Make include of <memory> conditional on C++11 or
	later.

From-SVN: r254024

	* tree.c (strip_typedefs): Canonicalize TYPE_RAISES_EXCEPTIONS.

From-SVN: r254022

From-SVN: r254021

	PR target/82662
	* gcc.target/i386/pr82662.c: New test.

From-SVN: r254020

* config/rl78/rl78.md: New define_expand "subdi3".
* config/rl78/subdi3.S: New assembly file.
* config/rl78/t-rl78: Added subdi3.S to LIB2ADD.

From-SVN: r254019

Forgot to add the new file :-P
2017-10-13  Sebastian Perta  <sebastian.perta@renesas.com>
* config/rl78/adddi3.S: New assembly file.
* config/rl78/t-rl78: Added adddi3.S to LIB2ADD.

From-SVN: r254016

	PR c/82681
	* c-warn.c (warnings_for_convert_and_check): Fix typos.

	* gcc.dg/c90-const-expr-11.c: Fix typos in dg-warning.
	* gcc.dg/overflow-warn-5.c: Likewise.
	* gcc.dg/overflow-warn-8.c: Likewise.

From-SVN: r254014