2018-06-22  Martin Liska  <mliska@suse.cz>

	* symbol-summary.h (get): Make it pure and inline move
        functionality from ::get function.
        (get): Remove and inline into ::get and ::get_create.
        (get_create): Move code from ::get function.

From-SVN: r261882

	PR target/85994
	* config/i386/sol2.h (CPP_SPEC): Don't pass -P for
	-x assembler-with-cpp.

From-SVN: r261880

	* config/sol2.h (TARGET_OS_CPP_BUILTINS): Define
	_FILE_OFFSET_BITS=64 for C++.

From-SVN: r261879

Fix this ChangeLog entry.

From-SVN: r261878

From-SVN: r261877

The explicit instantiation declarations for std::basic_string are
disabled for C++17 (and later) so that basic_string symbols get
implicitly instantiated in every translation unit that needs them.  On
targets that don't support STB_GNU_UNIQUE this leads to multiple copies
of the empty rep symbol for COW strings. In order to detect whether a
COW string needs to deallocate its storage it compares the address with
the empty rep.  When there are multiple copies of the empty rep object
the address is not unique, and so string destructors try to delete the
empty rep, which crashes.

In order to guarantee uniqueness of the _S_empty_rep_storage symbol this
patch adds an explicit instantiation declaration for just that symbol.
This means the other symbols are still implicitly instantiated in C++17
code, but for the empty rep the definition in the library gets used.

Separately, there is no need for C++17 code to implicitly instantiate
the I/O functions for strings, so this also restores the explicit
instantiation declarations for those functions.

	PR libstdc++/86138
	* include/bits/basic_string.tcc:
	[__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
	(basic_string<char>::_Rep::_S_empty_rep_storage)
	(basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
	instantiation declarations.
	[__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
	explicit instantiation declarations.
	* testsuite/21_strings/basic_string/cons/char/86138.cc: New.
	* testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.

From-SVN: r261873

2018-06-21  Michael Meissner  <meissner@linux.ibm.com>

	* gcc.target/powerpc/pack02.c: Use __ibm128 instead of long double
	if the long double format is IEEE 128-bit for tests that are
	explicitly testing IBM extended double support.  Use the
	appropriate pack and unpack built-in functions.  Change calls from
	__builtin_isinfl to __builtin_isinf since the later supports all
	floating point types.
	* gcc.target/powerpc/pr57150.c: Likewise.
	* gcc.target/powerpc/pr60203.c: Likewise.
	* gcc.target/powerpc/pr67808.c: Likewise.
	* gcc.target/powerpc/pr70117.c: Likewise.
	* gcc.target/powerpc/tfmode_off.c: Likewise.

From-SVN: r261872

    
    Port https://golang.org/cl/120375 over to the gofrontend repo so that
    it gets more reliable testing.
    
    Updates golang/go#22472
    
    Reviewed-on: https://go-review.googlesource.com/120395

From-SVN: r261871

rs6000.c (init_float128_ieee): Prevent complex multiply and divide external functions from being created more...

2018-06-23  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.c (init_float128_ieee): Prevent complex
	multiply and divide external functions from being created more
	than once.

From-SVN: r261870

2018-06-21  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.md (neg<mode>2_internal): Use the correct
	mode to check whether the mode is IBM extended.

From-SVN: r261869

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/49630
	* resolve.c (resolve_contained_fntype): Change standard ref.
	from F95 to F2003: C418. Correct a spelling error in a comment.
	It is an error for an abstract interface to have an assumed
	character length result.
	* trans-expr.c (gfc_conv_procedure_call): Likewise change the
	standard reference.

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/49630
	* gfortran.dg/assumed_charlen_function_7.f90: New test.

From-SVN: r261868

2018-06-21  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.md (extendtfif2): Add missing 128-bit
	conversion insn that shows up when pr85657-3.c is compiled using
	IEEE 128-bit long double.

From-SVN: r261867

The SSO basic_string has a non-standard insert(iterator, initializer_list)
overload, from a C++0x draft. This adds the correct overload, while also
preserving the old one so that the old symbol is still exported from the
library.

The COW basic_string doesn't have any of the C++11 changes to the insert
overloads (they all still have non-const iterator parameters and the
ones that should return an iterator still return void). This doesn't
make any change to the COW string.

	PR libstdc++/83328
	* acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
	* config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
	* configure: Regenerate.
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::insert(const_iterator, initializer_list<C>)): Add.
	[_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
	(basic_string::insert(iterator, initializer_list<C>)): Suppress
	definition.
	* include/debug/string (basic_string::insert(iterator, C)): Change
	first parameter to const_iterator.
	(basic_string::insert(iterator, size_type, C)): Likewise. Change
	return type to iterator.
	(basic_string::insert(iterator, InputIterator, InputIterator)):
	Likewise.
	(basic_string::insert(iterator, initializer_list<C>)): Change first
	parameter to const_iterator and return type to iterator.
	* src/c++11/string-inst.cc: Extend comment.
	* testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
	New.
	* testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
	New.
	* testsuite/util/testsuite_abi.cc: Add new symbol version.

From-SVN: r261866

From-SVN: r261865

From-SVN: r261861

	* name-lookup.c (do_push_to_top_level): Don't allocate
	current_lang_base.
	(do_pop_from_top_level): Release current_lang_base.

From-SVN: r261860

	* lex.c (cxx_make_type): Add MEM_STAT_DECL.
	(make_class_type): Likewise.
	(cxx_make_type_hook): New.
	* cp-objcp-common.h (LANG_HOOKS_MAKE_TYPE): Use cxx_make_type_hook.

From-SVN: r261859

From-SVN: r261858

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83118
	* resolve.c (resolve_ordinary_assign): Force the creation of a
	vtable for assignment of non-polymorphic expressions to an
	unlimited polymorphic object.
	* trans-array.c (gfc_alloc_allocatable_for_assignment): Use the
	size of the rhs type for such assignments. Set the dtype, _len
	and vptrs appropriately.
	* trans-expr.c (gfc_trans_assignment): Force the use of the
	_copy function for these assignments.

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/83118
	* gfortran.dg/unlimited_polymorphic_30.f03: New test.

From-SVN: r261857

	* cfgrtl.c (fixup_reorder_chain): Do not emit NOPs in DECL_IGNORED_P
	functions.
	(rtl_merge_blocks): Likewise.  Do not emit a NOP if the location of
	the edge can be forwarded.
	(cfg_layout_merge_blocks): Likewise.

From-SVN: r261856

except.c (finish_eh_generation): Commit edge insertions only after the EH edges have been redirected from...

	* except.c (finish_eh_generation): Commit edge insertions only after
	the EH edges have been redirected from post-landing to landing pads.

From-SVN: r261855

tree-nested.c (get_frame_type): Use create_tmp_var_raw instead of create_tmp_var_for to create the FRAME decl.

	* tree-nested.c (get_frame_type): Use create_tmp_var_raw instead of
	create_tmp_var_for to create the FRAME decl.
	(finalize_nesting_tree_1): Do not unchain the FRAME decl.

From-SVN: r261854

	* tree-inline.c (copy_edges_for_bb): Minor tweak.
	(maybe_move_debug_stmts_to_successors): Also reset the locus of the
	debug statement when resetting its value.
	(expand_call_inline): Copy the locus of the call onto the assignment
	of the return value, if any.  Use local variable in more cases.

From-SVN: r261853

	PR libstdc++/70940
	* include/experimental/memory_resource
	(__resource_adaptor_imp::do_deallocate): Add missing return.
	* testsuite/experimental/memory_resource/new_delete_resource.cc: New.
	* testsuite/experimental/memory_resource/resource_adaptor.cc: Test
	resource_adaptor with std::allocator, __gnu_cxx::new_allocator and
	__gnu_cxx::malloc_allocator.

From-SVN: r261851

	PR libstdc++/70940
	* include/experimental/memory_resource (__resource_adaptor_common):
	New base class.
	(__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
	pointer from unaligned, and vice versa.
	(__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
	allocated pointer to meet alignment request.
	(__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
	original pointer for deallocation.
	(__resource_adaptor_imp::do_is_equal): Reformat.
	(__resource_adaptor_imp::_S_aligned_size): Remove.
	(__resource_adaptor_imp::_S_supported): Remove.
	(new_delete_resource): Use __gnu_cxx::new_allocator.
	* testsuite/experimental/memory_resource/resource_adaptor.cc: Test
	extended alignments and use debug_allocator to check for matching
	allocate/deallocate pairs.

From-SVN: r261849

2018-06-21  Martin Liska  <mliska@suse.cz>

	* ipa-pure-const.c (propagate_nothrow): Use
        funct_state_summaries->get.
	(dump_malloc_lattice): Likewise.
	(propagate_malloc): Likewise.

From-SVN: r261848

2018-06-21  Richard Biener  <rguenther@suse.de>

	* lto-streamer-out.c (DFS::DFS_write_tree_body): Update outdated
	comment.  Follow BLOCK_ABSTRACT_ORIGIN unconditionally.
	* tree-streamer-in.c (lto_input_ts_block_tree_pointers): Update
	comment.
	* tree-streamer-out.c (write_ts_block_tree_pointers): Stream
	BLOCK_ABSTRACT_ORIGIN unconditionally.

From-SVN: r261847

gcc/ChangeLog:
	* ipa-cp.c (ipcp_driver): Set edge_clone_summaries to NULL after
	deleting it.
	* ipa-reference.c (ipa_reference_c_finalize): Delete
	ipa_ref_opt_sum_summaries and set it to NULL.

From-SVN: r261846

Atm this test in pr45882.c fails:
...
  int d = a[i];  /* { dg-final { gdb-test 16 "d" "112" } } */
...
as follows:
...
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fuse-linker-plugin \
      -fno-fat-lto-objects  line 16 d == 112
...

In more detail, gdb fails to print the value of d:
...
Breakpoint 1, foo (i=i@entry=7, j=j@entry=7) at pr45882.c:16
16        ++v;
$1 = <optimized out>
$2 = 112
<optimized out> != 112
...

Variable d is a local variable in function foo, initialized from global array a.
When compiling, first cddce1 removes the initialization of d in foo, given
that d is not used afterwards.  Then ipa marks array a as write-only, and
removes the stores to array a in main.  This invalidates the location
expression for d, which points to a[i], so it is removed, which is why gdb
ends up printing <optimized out> for d.

This patches fixes the fail by adding attribute used to array a, preventing
array a from being marked as write-only.

Tested on x86_64.

2018-06-21  Tom de Vries  <tdevries@suse.de>

	* gcc.dg/guality/pr45882.c (a): Add used attribute.

From-SVN: r261845

2018-06-21  Tom de Vries  <tdevries@suse.de>

	PR tree-optimization/85859
	* tree-ssa-tail-merge.c (stmt_local_def): Copy gimple_is_call
	test with comment from bb_no_side_effects_p.

	* gcc.dg/pr85859.c: New test.

From-SVN: r261844

2018-06-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86232
	* tree-ssa-loop-niter.c (number_of_iterations_popcount): Adjust
	max for constant niter.

	* gcc.dg/torture/pr86232.c: New testcase.

From-SVN: r261843

2018-06-21  Christophe Lyon  <christophe.lyon@linaro.org>

	libatomic/
	* config/arm/arm-config.h (__ARM_ARCH__): Remove definitions, use
	__ARM_ARCH instead. Use __ARM_FEATURE_LDREX to define HAVE_STREX
	and HAVE_STREXBHD

	libgcc/
	* config/arm/lib1funcs.S (__ARM_ARCH__): Remove definitions, use
	__ARM_ARCH and __ARM_FEATURE_CLZ instead.
	(HAVE_ARM_CLZ): Remove definition, use __ARM_FEATURE_CLZ instead.
	* config/arm/ieee754-df.S: Use __ARM_FEATURE_CLZ instead of
	__ARM_ARCH__.
	* config/arm/ieee754-sf.S: Likewise.
	* config/arm/libunwind.S: Use __ARM_ARCH instead of __ARM_ARCH__.

From-SVN: r261841

2018-06-21  Christophe Lyon  <christophe.lyon@linaro.org>

	libgcc/
	* config/arm/ieee754-df.S: Remove code for __ARM_ARCH__ < 4, no
	longer supported.
	* config/arm/ieee754-sf.S: Likewise.

From-SVN: r261840

gcc
2018-06-21  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/aarch64-simd.md
	(*aarch64_crypto_aes<aes_op>v16qi_xor_combine): New.

gcc/testsuite
2018-06-21  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* gcc/gcc.target/aarch64/aes_xor_combine.c: New test.

From-SVN: r261836

gcc
2018-06-21  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_crypto_aes<aes_op>v16qi):
	Make opernads of the unspec commutative.

gcc/testsuite
2018-06-21  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* gcc/gcc.target/aarch64/aes_2.c: New test.

From-SVN: r261835

2018-06-21  Richard Biener  <rguenther@suse.de>

	* tree-data-ref.c (dr_step_indicator): Handle NULL DR_STEP.
	* tree-vect-data-refs.c (vect_analyze_possibly_independent_ddr):
	Avoid calling vect_mark_for_runtime_alias_test with gathers or scatters.
	(vect_analyze_data_ref_dependence): Re-order checks to deal with
	NULL DR_STEP.
	(vect_record_base_alignments): Do not record base alignment
	for gathers or scatters.
	(vect_compute_data_ref_alignment): Drop return value that is always
	true.  Bail out early for gathers or scatters.
	(vect_enhance_data_refs_alignment): Bail out early for gathers
	or scatters.
	(vect_find_same_alignment_drs): Likewise.
	(vect_analyze_data_refs_alignment): Remove dead code.
	(vect_slp_analyze_and_verify_node_alignment): Likewise.
	(vect_analyze_data_refs): For possible gathers or scatters do
	not create an alternate DR, just check their possible validity
	and mark them.  Adjust DECL_NONALIASED handling to not rely
	on DR_BASE_ADDRESS.
	* tree-vect-loop-manip.c (vect_update_inits_of_drs): Do not
	update inits of gathers or scatters.
	* tree-vect-patterns.c (vect_recog_mask_conversion_pattern):
	Also copy gather/scatter flag to pattern vinfo.

From-SVN: r261834

libbacktrace/

2018-06-21 Denis Khalikov <d.khalikov@partner.samsung.com>

	PR other/86198
	* elf.c (elf_add): Increase ".note.gnu.build-id" section size
	checking up to 36 bytes.

From-SVN: r261832

debug.h (_Safe_iterator<>(const _Safe_iterator<_MutableIterator,>& __x)): Compare __x base iterator with a default initialized iterator of the same type.

2018-06-21  François Dumont  <fdumont@gcc.gnu.org>

	* include/debug/debug.h
	(_Safe_iterator<>(const _Safe_iterator<_MutableIterator,>& __x)):
	Compare __x base iterator with a default initialized iterator of the
	same type.

From-SVN: r261831

From-SVN: r261830

libgcc/:
	PR libgcc/86213
	* generic-morestack.c (allocate_segment): Move calls to getenv and
	getpagesize to __morestack_load_mmap.
	(__morestack_load_mmap) Initialize static_pagesize and
	use_guard_page here so as to avoid clobbering SSE regs during a
	__morestack call.
gcc/testsuite/:
	* gcc.dg/split-8.c: New.

From-SVN: r261823