Rewrite the AES hashing code from gc assembler to C code using
    intrinsics.  The resulting code generates the same hash code for the
    same input as the gc code--that doesn't matter as such, but testing it
    ensures that the C code does something useful.
    
    Also change mips64pe32le to mips64p32le in configure script--noticed
    during CL review.
    
    Reviewed-on: https://go-review.googlesource.com/34022

From-SVN: r243445

    
    The gc library allocates a _panic struct on the stack. This does not
    work for gccgo, because when a deferred function recovers the panic we
    unwind the stack up to that point so that returning from the function
    will work correctly.
    
    Allocating on the stack fine if the panic is not recovered, and it
    works fine if the panic is recovered by a function that
    returns. However, it fails if the panic is recovered by a function
    that itself panics, and if that second panic is then recovered by a
    function higher up on the stack. When we unwind the stack to that
    second panic, the g will wind up pointing at a panic farther down on
    the stack. Even then everything will often work fine, except when the
    deferred function catching the second panic makes a bunch of calls
    that use stack space before returning. In that case the code can
    overwrite the panic struct, which will then cause disaster when we
    remove the struct from the linked list, as the link field will be
    garbage. This case is rare enough that all the x86 tests were passing,
    but there was a failure on ppc64le.
    
    Before https://golang.org/cl/33414 we allocated the panic struct on
    the heap, so go back to doing that again.
    
    Fixes golang/go#18228.
    
    Reviewed-on: https://go-review.googlesource.com/34027

From-SVN: r243444

	PR libstdc++/78264
	* include/bits/c++config (_GLIBCXX_NOEXCEPT_PARM): Turn _N into _NE.
	(_GLIBCXX_NOEXCEPT_QUAL): Likewise.

From-SVN: r243443

    
    Because of the way we handle call expressions with multiple results,
    it's possible for expressions to be flattened more than once.  In the
    case of Slice_construction_expression, allocating the slice storage
    multiple times caused a compiler crash as one of the
    Temporary_statement's wound up not getting a backend expression.
    
    Test case is https://golang.org/cl/34020.
    
    Reviewed-on: https://go-review.googlesource.com/34026

From-SVN: r243442

2016-12-08  Dmitry Vyukov  <dvyukov@google.com>

	* opts.c (finish_options): Enable
	-fsanitize-address-use-after-scope only if -fsanitize=address is enabled
	(not -fsanitize=kernel-address).
	* doc/invoke.texi (-fsanitize=kernel-address):
	Don't say that it enables -fsanitize-address-use-after-scope.

From-SVN: r243441

From-SVN: r243439

	* testsuite/experimental/filesystem/path/construct/range.cc: Don't
	use basic_string::front() when string might be empty.

From-SVN: r243438

	* include/debug/array (swap): Add deleted overload.
	* include/bits/stl_pair.h (swap): Remove redundant inline keyword
	from deleted overload.
	* include/bits/unique_ptr.h (swap): Likewise.
	* include/std/array (swap): Likewise.
	* include/std/optional (swap): Likewise.
	* include/std/tuple (swap): Likewise.
	* include/std/variant (swap): Likewise.
	* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
	Adjust dg-error line numbers.
	* testsuite/23_containers/array/tuple_interface/get_neg.cc: Likewise.
	* testsuite/23_containers/array/tuple_interface/
	tuple_element_debug_neg.cc: Likewise.
	* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
	Likewise.

From-SVN: r243437

	PR libstdc++/71856
	* doc/xml/manual/using.xml: Document macro.
	* include/bits/c++config [_GLIBCXX_DEBUG || _GLIBCXX_PARALLEL]
	(__glibcxx_assert): Rename to __glibcxx_assert_impl.
	[_GLIBCXX_DEBUG] (__glibcxx_assert): Expand to __glibcxx_assert_impl.
	* include/parallel/base.h [_GLIBCXX_PARALLEL_ASSERTIONS]
	(_GLIBCXX_PARALLEL_ASSERT): Expand to __glibcxx_assert_impl.
	[!_GLIBCXX_PARALLEL_ASSERTIONS] (_GLIBCXX_PARALLEL_ASSERT): Define as
	empty.
	* testsuite/25_algorithms/headers/algorithm/
	parallel_algorithm_assert2.cc: New test.

From-SVN: r243434

2016-12-08  Pierre-Marie de Rodat  <derodat@adacore.com>

	PR debug/78112
	* g++.dg/pr78112.C: Remove platform-dependent checks.
	* g++.dg/pr78112-2.C: New testcase.

From-SVN: r243433

... as there checks failed on many platforms. As a replacement, this
commit also adds a new testcase from source reduction. The hope is that
this new testcase will get a consistent output across all platforms.

gcc/testsuite/
	PR debug/78112
	* g++.dg/pr78112.C: Remove platform-dependent checks.
	* g++.dg/pr78112-2.C: New testcase.

From-SVN: r243432

	PR middle-end/78684
	* tree-vect-loop-manip.c (create_intersect_range_checks_index): Check
	sign bit for index step of data reference.
	gcc/testsuite
	PR middle-end/78684
	* g++.dg/torture/pr78684.C: New test.

From-SVN: r243431

2016-12-08  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.target/aarch64/advsimd-intrinsics/arm-neon-ref.h
	(CHECK_CRYPTO): Remove.
	(expected_poly64x1_t, expected_poly64x2_t): Remove

From-SVN: r243430

	P0003R5 - removal of dynamic exception specification from C++17
	* parser.c (cp_parser_exception_specification_opt): For C++17
	error out on throw ( type-id-list ), for C++11 and C++14 issue
	-Wdeprecated warning on it.  Formatting fix.  Treat throw()
	in C++17 as noexcept(true).

	* g++.dg/compat/eh/ctor1.h: Adjust for deprecation of
	throw (type-id-list) in C++11 and C++14 and removal in C++17.
	* g++.dg/compat/eh/ctor1_y.C: Likewise.
	* g++.dg/compat/eh/new1_x.C: Likewise.
	* g++.dg/compat/eh/new1_y.C: Likewise.
	* g++.dg/compat/eh/spec3_x.C: Likewise.
	* g++.dg/compat/eh/spec3_y.C: Likewise.
	* g++.dg/compat/eh/template1.h: Likewise.
	* g++.dg/compat/eh/template1_y.C: Likewise.
	* g++.dg/compat/eh/unexpected1_x.C: Likewise.
	* g++.dg/compat/eh/unexpected1_y.C: Likewise.
	* g++.dg/cpp0x/auto9.C: Likewise.
	* g++.dg/cpp0x/defaulted23.C: Likewise.
	* g++.dg/cpp0x/error5.C: Likewise.
	* g++.dg/cpp0x/lambda/lambda-eh2.C: Likewise.
	* g++.dg/cpp0x/noexcept02.C: Likewise.
	* g++.dg/cpp0x/noexcept07.C: Likewise.
	* g++.dg/cpp0x/noexcept08.C: Likewise.
	* g++.dg/cpp0x/noexcept19.C: Likewise.
	* g++.dg/cpp0x/variadic73.C: Likewise.
	* g++.dg/cpp0x/variadic-throw.C: Likewise.
	* g++.dg/cpp1z/noexcept-type1.C: Likewise.
	* g++.dg/eh/async-unwind2.C: Likewise.
	* g++.dg/eh/cond4.C: Likewise.
	* g++.dg/eh/delete1.C: Likewise.
	* g++.dg/eh/ehopt1.C: Likewise.
	* g++.dg/eh/forced3.C: Likewise.
	* g++.dg/eh/forced4.C: Likewise.
	* g++.dg/eh/init-temp2.C: Likewise.
	* g++.dg/eh/pr38662.C: Likewise.
	* g++.dg/eh/pr41819.C: Likewise.
	* g++.dg/eh/shadow1.C: Likewise.
	* g++.dg/eh/spec2.C: Likewise.
	* g++.dg/eh/spec3.C: Likewise.
	* g++.dg/eh/spec5.C: Likewise.
	* g++.dg/eh/spec6.C: Likewise.
	* g++.dg/eh/spec7.C: Likewise.
	* g++.dg/eh/spec8.C: Likewise.
	* g++.dg/eh/spec9.C: Likewise.
	* g++.dg/eh/template1.C: Likewise.
	* g++.dg/eh/unexpected1.C: Likewise.
	* g++.dg/ext/has_nothrow_assign.C: Likewise.
	* g++.dg/ext/has_nothrow_constructor.C: Likewise.
	* g++.dg/ext/has_nothrow_copy-1.C: Likewise.
	* g++.dg/ext/has_nothrow_copy-2.C: Likewise.
	* g++.dg/ext/has_nothrow_copy-4.C: Likewise.
	* g++.dg/ext/has_nothrow_copy-5.C: Likewise.
	* g++.dg/ext/has_nothrow_copy-6.C: Likewise.
	* g++.dg/ext/has_nothrow_copy-7.C: Likewise.
	* g++.dg/gcov/gcov-7.C: Likewise.
	* g++.dg/init/new13.C: Likewise.
	* g++.dg/init/new25.C: Likewise.
	* g++.dg/lookup/exception1.C: Likewise.
	* g++.dg/opt/noreturn-1.C: Likewise.
	* g++.dg/other/error3.C: Likewise.
	* g++.dg/rtti/crash3.C: Likewise.
	* g++.dg/template/eh2.C: Likewise.
	* g++.dg/template/error36.C: Likewise.
	* g++.dg/tm/pr46567.C: Likewise.
	* g++.dg/tm/pr47340.C: Likewise.
	* g++.dg/torture/pr46364.C: Likewise.
	* g++.dg/torture/pr49394.C: Likewise.
	* g++.dg/torture/pr52918-1.C: Likewise.
	* g++.dg/torture/pr57190.C: Likewise.
	* g++.dg/torture/stackalign/eh-alloca-1.C: Likewise.
	* g++.dg/torture/stackalign/eh-fastcall-1.C: Likewise.
	* g++.dg/torture/stackalign/eh-global-1.C: Likewise.
	* g++.dg/torture/stackalign/eh-inline-1.C: Likewise.
	* g++.dg/torture/stackalign/eh-inline-2.C: Likewise.
	* g++.dg/torture/stackalign/eh-thiscall-1.C: Likewise.
	* g++.dg/torture/stackalign/eh-vararg-1.C: Likewise.
	* g++.dg/torture/stackalign/eh-vararg-2.C: Likewise.
	* g++.dg/tree-ssa/pr45605.C: Likewise.
	* g++.dg/warn/Wreturn-type-3.C: Likewise.
	* g++.old-deja/g++.eh/badalloc1.C: Likewise.
	* g++.old-deja/g++.eh/cleanup2.C: Likewise.
	* g++.old-deja/g++.eh/spec1.C: Likewise.
	* g++.old-deja/g++.eh/spec2.C: Likewise.
	* g++.old-deja/g++.eh/spec3.C: Likewise.
	* g++.old-deja/g++.eh/spec4.C: Likewise.
	* g++.old-deja/g++.eh/spec6.C: Likewise.
	* g++.old-deja/g++.eh/throw1.C: Likewise.
	* g++.old-deja/g++.eh/throw2.C: Likewise.
	* g++.old-deja/g++.eh/tmpl1.C: Likewise.
	* g++.old-deja/g++.eh/tmpl3.C: Likewise.
	* g++.old-deja/g++.mike/eh15.C: Likewise.
	* g++.old-deja/g++.mike/eh25.C: Likewise.
	* g++.old-deja/g++.mike/eh33.C: Likewise.
	* g++.old-deja/g++.mike/eh34.C: Likewise.
	* g++.old-deja/g++.mike/eh50.C: Likewise.
	* g++.old-deja/g++.mike/eh51.C: Likewise.
	* g++.old-deja/g++.mike/eh55.C: Likewise.
	* g++.old-deja/g++.mike/p10416.C: Likewise.
	* g++.old-deja/g++.other/crash28.C: Likewise.
	* g++.old-deja/g++.other/crash30.C: Likewise.
	* g++.old-deja/g++.other/new7.C: Likewise.
	* g++.old-deja/g++.pt/ehspec1.C: Likewise.
	* g++.old-deja/g++.robertl/eb123.C: Likewise.

	* testsuite/util/testsuite_new_operators.h: Include testsuite_hooks.h.
	(operator new): Use THROW macro.

From-SVN: r243429

2016-12-08  Naveen H.S  <Naveen.Hurugalawadi@cavium.com>

gcc
	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
	Handle SYMBOL_SMALL_TLSGD for ILP32.
	* config/aarch64/aarch64.md : tlsgd_small modified into
	tlsgd_small_<mode> to support SImode and DImode.
	*tlsgd_small modified into *tlsgd_small_<mode> to support SImode and
	DImode.

gcc/testsuite
	* gcc.target/aarch64/pr78382.c : New Testcase.

From-SVN: r243428

2016-12-08  Andrew Pinski  <apinski@cavium.com>

gcc
	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
	Access the lower part of RTX appropriately.

gcc/testsuite
	* gcc.target/aarch64/pr71112.c : New Testcase.

From-SVN: r243427

This moves read_rtx and friends into rtx_reader, and splits
rtx_reader into two classes:

class md_reader: has responsibility for reading chars, managing
include files, top-level directives etc.  It is the read-md.o part.

class rtx_reader, a subclass, has the code for reading hierarchical
rtx expressions using the format codes.   It is the read-rtl.o part.

This split is needed by a followup patch, which converts
read_rtx_operand to a virtual function of rtx_reader.  To do this,
instances of rtx_reader (or its subclasses) need a vtable, which
needs to include a ptr to the code in read-rtl.o.  Splitting it up
allows the gen* tools that currently purely use read-md.o to continue
to do so.

gcc/ChangeLog:
	* genpreds.c (write_tm_constrs_h): Update for renaming of
	rtx_reader_ptr to md_reader_ptr.
	(write_tm_preds_h): Likewise.
	(write_insn_preds_c): Likewise.
	* read-md.c (rtx_reader_ptr): Rename to...
	(md_reader_ptr): ...this, and convert from an
	rtx_reader * to a md_reader *.
	(rtx_reader::set_md_ptr_loc): Rename to...
	(md_reader::set_md_ptr_loc): ...this.
	(rtx_reader::get_md_ptr_loc): Rename to...
	(md_reader::get_md_ptr_loc): ...this.
	(rtx_reader::copy_md_ptr_loc): Rename to...
	(md_reader::copy_md_ptr_loc): ...this.
	(rtx_reader::fprint_md_ptr_loc): Rename to...
	(md_reader::fprint_md_ptr_loc): ...this.
	(rtx_reader::print_md_ptr_loc): Rename to...
	(md_reader::print_md_ptr_loc): ...this.
	(rtx_reader::join_c_conditions): Rename to...
	(md_reader::join_c_conditions): ...this.
	(rtx_reader::fprint_c_condition): ...this.
	(rtx_reader::print_c_condition): Rename to...
	(md_reader::print_c_condition): ...this.
	(fatal_with_file_and_line):  Update for renaming of
	rtx_reader_ptr to md_reader_ptr.
	(rtx_reader::require_char): Rename to...
	(md_reader::require_char): ...this.
	(rtx_reader::require_char_ws): Rename to...
	(md_reader::require_char_ws): ...this.
	(rtx_reader::require_word_ws): Rename to...
	(md_reader::require_word_ws): ...this.
	(rtx_reader::read_char): Rename to...
	(md_reader::read_char): ...this.
	(rtx_reader::unread_char): Rename to...
	(md_reader::unread_char): ...this.
	(rtx_reader::peek_char): Rename to...
	(md_reader::peek_char): ...this.
	(rtx_reader::read_name): Rename to...
	(md_reader::read_name): ...this.
	(rtx_reader::read_escape): Rename to...
	(md_reader::read_escape): ...this.
	(rtx_reader::read_quoted_string): Rename to...
	(md_reader::read_quoted_string): ...this.
	(rtx_reader::read_braced_string): Rename to...
	(md_reader::read_braced_string): ...this.
	(rtx_reader::read_string): Rename to...
	(md_reader::read_string): ...this.
	(rtx_reader::read_skip_construct): Rename to...
	(md_reader::read_skip_construct): ...this.
	(rtx_reader::handle_constants): Rename to...
	(md_reader::handle_constants): ...this.
	(rtx_reader::traverse_md_constants): Rename to...
	(md_reader::traverse_md_constants): ...this.
	(rtx_reader::handle_enum): Rename to...
	(md_reader::handle_enum): ...this.
	(rtx_reader::lookup_enum_type): Rename to...
	(md_reader::lookup_enum_type): ...this.
	(rtx_reader::traverse_enum_types): Rename to...
	(md_reader::traverse_enum_types): ...this.
	(rtx_reader::rtx_reader): Rename to...
	(md_reader::md_reader): ...this, and update for renaming of
	rtx_reader_ptr to md_reader_ptr.
	(rtx_reader::~rtx_reader): Rename to...
	(md_reader::~md_reader): ...this, and update for renaming of
	rtx_reader_ptr to md_reader_ptr.
	(rtx_reader::handle_include): Rename to...
	(md_reader::handle_include): ...this.
	(rtx_reader::handle_file): Rename to...
	(md_reader::handle_file): ...this.
	(rtx_reader::handle_toplevel_file): Rename to...
	(md_reader::handle_toplevel_file): ...this.
	(rtx_reader::get_current_location): Rename to...
	(md_reader::get_current_location): ...this.
	(rtx_reader::add_include_path): Rename to...
	(md_reader::add_include_path): ...this.
	(rtx_reader::read_md_files): Rename to...
	(md_reader::read_md_files): ...this.
	* read-md.h (class rtx_reader): Split into...
	(class md_reader): ...new class.
	(rtx_reader_ptr): Rename to...
	(md_reader_ptr): ...this, and convert to a md_reader *.
	(class noop_reader): Update base class to be md_reader.
	(class rtx_reader): Reintroduce as a subclass of md_reader.
	(rtx_reader_ptr): Reintroduce as a rtx_reader *.
	(read_char): Update for renaming of rtx_reader_ptr to
	md_reader_ptr.
	(unread_char): Likewise.
	* read-rtl.c (rtx_reader_ptr): New global.
	(rtx_reader::apply_iterator_to_string): Rename to...
	(md_reader::apply_iterator_to_string): ...this.
	(rtx_reader::copy_rtx_for_iterators): Rename to...
	(md_reader::copy_rtx_for_iterators): ...this.
	(rtx_reader::read_conditions): Rename to...
	(md_reader::read_conditions): ...this.
	(rtx_reader::record_potential_iterator_use): Rename to...
	(md_reader::record_potential_iterator_use): ...this.
	(rtx_reader::read_mapping): Rename to...
	(md_reader::read_mapping): ...this.
	(rtx_reader::read_rtx): Use rtx_reader_ptr when calling
	read_rtx_code.
	(rtx_reader::read_rtx_operand): Use get_string_obstack rather
	than directly accessing m_string_obstack.
	(rtx_reader::rtx_reader): New ctor.
	(rtx_reader::~rtx_reader): New dtor.

From-SVN: r243426

    
    Small patch from Eric Botcazou.
    
    Reviewed-on: https://go-review.googlesource.com/34029

From-SVN: r243424

From-SVN: r243423

I managed to get the last obvious fix wrong: mode is M1, GET_MODE (op)
is M2.

[ adding missing PR marker ]


	PR rtl-optimization/78638
	* simplify-rtx.c (simplify_truncation): M2 is not mode, it is
	GET_MODE (op).  Fix this.

From-SVN: r243420

PR c/53562 - Add -Werror= support for -D_FORTIFY_SOURCE / __builtin___memcpy_chk
PR middle-end/77784 - duplicate warning for snprintf when n > object size
PR middle-end/78149 - missing warning on strncpy buffer overflow due to an excessive bound
PR middle-end/78138 - missing warnings on buffer overflow with non-constant source length

gcc/c-family/ChangeLog:

	PR c/53562
	PR middle-end/77784
	PR middle-end/78149
	PR middle-end/78138
	* c.opt (-Wstringop-overflow): New option.

gcc/ChangeLog:

	PR middle-end/77784
	PR middle-end/78149
	PR middle-end/78138
	
	* builtins.c (expand_builtin_strcat, expand_builtin_strncat): New
	functions.
	(compute_dest_size, get_size_range, check_sizes, check_strncat_sizes)
	(check_memop_sizes): Same.
	(expand_builtin_memcpy): Call check memop_sizes.
	(expand_builtin_mempcpy): Same.
	(expand_builtin_memset): Same,
	(expand_builtin_bzero): Same.
	(expand_builtin_memory_chk): Call check_sizes.
	(expand_builtin_strcpy): Same.
	(expand_builtin_strncpy): Same.
	(maybe_emit_sprintf_chk_warning): Same.
	(expand_builtin): Handle strcat and strncat.
	(fini_object_sizes): Reset pointers.
	(compute_object_size): New function.
	* gimple-ssa-sprintf.c (pass_sprintf_length::handle_gimple_call):
	Avoid issuing warnings also issued during built-in expansion.
	* doc/invoke.texi (Warning Options): Document -Wstringop-overflow.

gcc/testsuite/ChangeLog:

	PR middle-end/77784
	PR middle-end/78149
	PR middle-end/78138

	* c-c++-common/Wsizeof-pointer-memaccess2.c: Adjust expected diagnostic.
	* g++.dg/ext/builtin-object-size3.C (bar): Same.
	* g++.dg/ext/strncpy-chk1.C: Same.
	* g++.dg/opt/memcpy1.C: Same.
	* g++.dg/torture/Wsizeof-pointer-memaccess1.C: Same.
	* gcc.c-torture/compile/pr55569.c: Disable -Wstringop-overflow.
	* gcc.dg/Wobjsize-1.c: Adjust expected diagnostic.
	* gcc.dg/attr-alloc_size.c: Same.
	* gcc.dg/builtin-stringop-chk-1.c: Adjust expected diagnostic.
	* gcc.dg/builtin-stringop-chk-2.c: Same.
	* gcc.dg/builtin-stringop-chk-4.c: New test.
	* gcc.dg/builtin-strncat-chk-1.c: Adjust expected diagnostic.
	* gcc.dg/memcpy-2.c: Same.
	* gcc.dg/pr40340-1.c: Same.
	* gcc.dg/pr40340-2.c (main): Same.
	* gcc.dg/pr40340-5.c (main): Same.
	* gcc.dg/torture/Wsizeof-pointer-memaccess1.c: Same.
	* gcc.dg/torture/pr71132.c: Disable -Wstringop-overflow.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Adjust text of expected
	warning.
	* gfortran.dg/char_length_3.f90: Prune expected warnings.
	* gfortran.dg/pr38868.f: Add expected warnings.

From-SVN: r243419

[gcc]
2016-12-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/72717
	* config/rs6000/rs6000.c (rs6000_expand_vector_init): If the
	V2DImode elements are SUBREG's convert the result into DImode
	rather than failing in emit_move_insn.

[gcc/testsuite]
2016-12-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/72717
	* gcc.target/powerpc/pr72717.c: New test.

From-SVN: r243418

	* elf.m4: Revert 2016-06-21 change.
	* picflag.m4: Likewise.  Revert 2016-04-30 change too.
	* override.m4 (AC_PROG_LEX): Import 2016-01-18 binutils fix
	for PR binutils/19481.

From-SVN: r243417

	* include/bits/stl_tree.h
	(_Rb_tree<>::_M_copy(_Const_Link_type, _Base_ptr)): Delete.
	(_Rb_tree<>::_M_copy(const _Rb_tree&, _NodeGen&)): New.
	(_Rb_tree<>::_M_copy(const _Rb_tree&)): New, use latter.
	(_Rb_tree<>(const _Rb_tree&): Use latter.
	(_Rb_tree<>(const _Rb_tree&, const allocator_type&)): Likewise.
	(_Rb_tree<>::_M_move_data(_Rb_tree&, false_type)): Likewise.
	(_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Likewise.
	(_Rb_tree<>::operator=(const _Rb_tree&)): Likewise.

From-SVN: r243380

2016-12-07  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_map.h (map(const map&)): Make default.
	(map(map&&)): Likewise.
	(~map()): Likewise.
	(operator=(const map&)): Likewise.
	* include/bits/stl_multimap.h (multimap(const multimap&)): Make default.
	(multimap(multimap&&)): Likewise.
	(~multimap()): Likewise.
	(operator=(const multimap&)): Likewise.
	* include/bits/stl_set.h (set(const set&)): Make default.
	(set(set&&)): Likewise.
	(~set()): Likewise.
	(operator=(const set&)): Likewise.
	* include/bits/stl_multiset.h (multiset(const multiset&)): Make default.
	(multiset(multiset&&)): Likewise.
	(~multiset()): Likewise.
	(operator=(const multiset&)): Likewise.
	* include/bits/stl_tree.h (_Rb_tree_key_compare<>): New.
	(_Rb_tree_header): New.
	(_Rb_tree_impl): Inherit from latters.
	(_Rb_tree_impl()): Make default.
	(_Rb_tree_impl(const _Rb_tree_impl&)): New.
	(_Rb_tree<>(const _Rb_tree&): Use latter.
	(_Rb_tree_impl(_Rb_tree_impl&&)): New, default.
	(_Rb_tree_impl(const _Key_compare&, const _Node_allocator&)): Delete.
	(_Rb_tree_impl::_M_reset): Move...
	(_Rb_tree_header::_M_reset): ...here.
	(_Rb_tree_impl::_M_initialize): Delete.
	(_Rb_tree(_Rb_tree&&)): Make default.
	(_Rb_tree_header::_M_move_data(_Rb_tree_header&)): New.
	(_Rb_tree<>::_M_move_data(_Rb_tree&, true_type)): Use latter.
	(_Rb_tree<>(_Rb_tree&&)): Make default.

From-SVN: r243379

	* builtins.c (fold_builtin_strstr): Removed.
	(fold_builtin_2): Don't call fold_builtin_strstr.
	* gimple-fold.c (gimple_fold_builtin_strchr): Check is_strrchr
	earlier in the strrchr (x, 0) -> strchr (x, 0) optimization.
	(gimple_fold_builtin_strstr): New function.
	(gimple_fold_builtin): Call it.
	* fold-const-call.c (fold_const_call): Handle CFN_BUILT_IN_STRSTR.

	* gcc.dg/builtin-strstr-1.c: New test.
	* g++.dg/cpp0x/constexpr-strstr.C: New test.

From-SVN: r243378

	PR c++/78692
	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Set lhs
	var to lhs of new_stmt right before noreturn handling rather than to
	lhs of e->call_stmt early.

	* g++.dg/torture/pr78692.C: New test.

From-SVN: r243377

gcc/ChangeLog:
	* read-md.c (rtx_reader::require_char): New method.
	(require_char_ws): Convert from function to...
	(rtx_reader::require_char_ws): ...method.
	(rtx_reader::require_word_ws): New method.
	* read-md.h (rtx_reader::require_char): New method decl.
	(require_char_ws): Remove global decl in favor of...
	(rtx_reader::require_char_ws): ...new method decl.
	(rtx_reader::require_word_ws): New method decl.
	(rtx_reader::peek_char): New method decl.

From-SVN: r243376

2016-12-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    PR rtl-optimization/78617
    * lra-remat.c (do_remat): Initialize live_hard_regs from live in
    registers, also setting hard registers mapped to pseudo registers.

    gcc/testsuite/
    PR rtl-optimization/78617
    * gcc.c-torture/execute/pr78617.c: New test.

From-SVN: r243374

Move this part of "expand"'s initialization of crtl into its own
method so that it can used by the RTL frontend when postprocessing
RTL dumps.

gcc/ChangeLog:
	* cfgexpand.c (pass_expand::execute): Move stack initializations
	to rtl_data::init_stack_alignment and call it.
	* emit-rtl.c (rtl_data::init_stack_alignment): New method.
	* emit-rtl.h (rtl_data::init_stack_alignment): New method.

From-SVN: r243371

2016-12-07  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-3.c: Move built-in tests for P8 and
	P9 to their own test file.  This allows precise constraints on the
	effective target and compile options.
	* gcc.target/powerpc/builtins-3-p8.c: New file for the vector
	compare P8 built-in tests.
	* gcc.target/powerpc/builtins-3-p9.c: New file for the vector
	compare P9 built-in tests.

From-SVN: r243370

	* gcc.target/i386/pr77761.c: Require int128 effective target.
	(avx512f_test): Delete.
	(do_main): Rename to avx512f_test.

From-SVN: r243367

	* include/experimental/bits/fs_path.h (path::_S_convert): Replace
	uses of C++14 std::remove_cv_t alias template.

From-SVN: r243355

	* testsuite/28_regex/traits/char/user_defined.cc: Replace uses of
	C++14 std::exchange function.

From-SVN: r243354

	* testsuite/util/testsuite_hooks.h (THROW): Define.
	* testsuite/util/replacement_memory_operators.h: Include
	testsuite_hooks.h and use THROW macro.
	* testsuite/util/testsuite_tr1.h: Likewise.
	* testsuite/20_util/allocator/1.cc: Use THROW macro.
	* testsuite/22_locale/locale/cons/12352.cc: Likewise.
	* testsuite/23_containers/vector/zero_sized_allocations.cc: Likewise.
	* testsuite/30_threads/lock_guard/cons/1.cc: Replace dynamic exception
	specification with noexcept-specifier.
	* testsuite/ext/pool_allocator/allocate_chunk.cc: Include
	testsuite_hooks.h and use THROW macro.
	* testsuite/ext/profile/replace_new.cc: Likewise.

From-SVN: r243353

	* include/ext/bitmap_allocator.h (bitmap_allocator::_S_refill_pool)
	(bitmap_allocator::_M_allocate_single_object)
	(bitmap_allocator::_M_get): Use _GLIBCXX_THROW macro.

From-SVN: r243352

	* testsuite/18_support/bad_exception/59392.cc: Disable for C++17.

From-SVN: r243351

	* testsuite/18_support/headers/new/synopsis.cc: Add C++14 and C++17
	declarations.
	* testsuite/18_support/headers/new/synopsis_cxx98.cc: New test.

From-SVN: r243349

GCC caches the whether a function is a leaf in crtl->is_leaf. Using this
in the backend is best as leaf_function_p may not work correctly (eg. while
emitting prolog or epilog code).  There are many reads of crtl->is_leaf
before it is initialized.  Many targets do in targetm.frame_pointer_required
(eg. arm, aarch64, i386, mips, sparc), which is called before register 
allocation by ira_setup_eliminable_regset and sched_init.

Additionally, SHRINK_WRAPPING_ENABLED calls targetm.have_simple_return,
which evaluates the condition of the simple_return instruction.  On ARM
this results in a call to use_simple_return_p which requires crtl->is_leaf
to be set correctly.

To fix this, initialize crtl->is_leaf in ira_setup_eliminable_regset and
early on in ira.  A bootstrap did not find any uninitialized reads of
crtl->is_leaf on Thumb-2.  A follow-up patch will remove incorrect uses
of leaf_function_p from the ARM backend.

    gcc/
	* gcc/ira.c (ira_setup_eliminable_regset): Initialize crtl->is_leaf.
	(ira): Move initialization of crtl->is_leaf earlier.

From-SVN: r243347

Improve TI mode address offsets - these may either use LDP of 64-bit or
LDR of 128-bit, so we need to use the correct intersection of offsets.
When splitting a large offset into base and offset, use a signed 9-bit 
unscaled offset.

Remove the Ump constraint on movti and movtf instructions as this blocks
the reload optimizer from merging address CSEs (is this supposed to work
only on 'm' constraints?).  The result is improved codesize, especially
wrf and gamess in SPEC2006.

    gcc/
	* config/aarch64/aarch64.md (movti_aarch64): Change Ump to m.
	(movtf_aarch64): Likewise.
	* config/aarch64/aarch64.c (aarch64_classify_address):
	Use correct intersection of offsets.
	(aarch64_legitimize_address_displacement): Use 9-bit signed offsets.
	(aarch64_legitimize_address): Use 9-bit signed offsets for TI/TF mode.
	Use 7-bit signed scaled mode for modes > 16 bytes.

From-SVN: r243346