function.c (assign_parm_find_data_types): Use RECORD_OR_UNION_TYPE_P before testing TYPE_TRANSPARENT_AGGR.

	* function.c (assign_parm_find_data_types): Use RECORD_OR_UNION_TYPE_P
	before testing TYPE_TRANSPARENT_AGGR.
	* calls.c (initialize_argument_information, load_register_parameters):
	Likewise.

From-SVN: r275472

        * gcc.dg/torture/inf-compare-1.c: Skip AIX.
        * gcc.dg/torture/inf-compare-2.c: Skip AIX.
        * gcc.dg/torture/inf-compare-3.c: Skip AIX.
        * gcc.dg/torture/inf-compare-4.c: Skip AIX.
        * gcc.dg/torture/pr52451.c: Skip AIX.
        * gcc.dg/torture/pr68264.c: Skip AIX
        * gcc.dg/torture/pr91323.c: Skip AIX.

From-SVN: r275464

        * g++.dg/warn/Warray-bounds-4.C: Skip AIX.
        * g++.dg/warn/Warray-bounds-8.C: Skip AIX.
        * g++.dg/opt/flifetime-dse2.C: XFAIL AIX.
        * g++.dg/opt/flifetime-dse4.C: XFAIL AIX.

From-SVN: r275462

2019-09-05  Caroline Tice  <cmtice@google.com>

        PR testsuite/91670
        * g++.dg/ubsan/pr59415.C: Disable LTO, since test uses
        -fvtable-verify, and the two options are no longer allowed
        together.

From-SVN: r275460

	* include/bits/range_access.h (ssize): Define for C++20.
	* testsuite/24_iterators/range_access_cpp20.cc: New test.
	* doc/xml/manual/status_cxx2020.xml: Update P1227R2 status.
	* doc/html/*: Regenerate.

From-SVN: r275458

https://gcc.gnu.org/ml/gcc-patches/2019-08/msg02069.html
	New # semantics for popping to "" name.
	libcpp/
	* directives.c (do_linemarker): Popping to "" name means get the
	name from the include stack..

From-SVN: r275457

https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00379.html
	PR c++/91125
	* cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete.
	(struct lang_decl_base): Remove repo_available_p.
	* decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P.

From-SVN: r275456

https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00365.html
	Reserve TREE_LANG_FLAG_3 for modules.
	gcc/cp/
	* cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete.
	(DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6.
	* class.c (build_ctor_vtbl_group): Don't set
	DECL_CONSTRUCTION_VTABLE_P.
	* decl2.c (determine_visibility_from_class): Don't check
	DECL_CONSTRUCTION_VTABLE_P anymore.

From-SVN: r275455

Without this change, libstdc++ is built without futex symbols if GCC
rejects implicit function declarations by default.

From-SVN: r275454

The cmp_and and cmp_ior patterns were missing a couple of short-it
variants for thumb2, where the comparisons are all using registers
some of which were HI_REGS.

	* config/arm/arm.md (cmp_and): Add short-it variant for thumb2 with
	high regs.
	(cmp_ior): Likewise.

From-SVN: r275453

2019-09-06  Martin Liska  <mliska@suse.cz>

	* doc/match-and-simplify.texi: Separate tuples with ;.

From-SVN: r275452

2019-09-06  Martin Liska  <mliska@suse.cz>

	PR c++/91125
	* Makefile.in: Remove tlink.o.
	* collect2.c (do_link): New function isolated
	from do_tlink.
	(main): Use.
	* collect2.h (do_tlink): Remove declaration of do_tlink.
	* doc/extend.texi: Remove documentation of -frepo.
	* doc/invoke.texi: Likewise.
	* doc/sourcebuild.texi: Remove cleanup-repo-files.
	* tlink.c: Remove.
2019-09-06  Martin Liska  <mliska@suse.cz>

	PR c++/91125
	* c-common.c: Remove definition of flag_use_repository.
	* c-common.h: Likewise.
	* c-opts.c (c_common_handle_option):
	Do not handle OPT_frepo option.
	* c.opt: Mark the option with Deprecated.
2019-09-06  Martin Liska  <mliska@suse.cz>

	PR c++/91125
	* Make-lang.in: Remove repo.o.
	* config-lang.in: Likewise.
	* cp-tree.h (init_repo): Remove declarations
	of repo-related functions.
	(repo_emit_p): Likewise.
	(repo_export_class_p): Likewise.
	(finish_repo): Likewise.
	* decl2.c (import_export_class): Always
	set -1 value/
	(mark_needed): Remove -frepo from comment.
	(import_export_decl): Similarly here.
	(c_parse_final_cleanups): Remove call of finish_repo.
	* lex.c (cxx_init): Remove call to init_repo.
	* optimize.c (can_alias_cdtor): Remove dead condition.
	* pt.c (push_template_decl_real): Update comment.
	(instantiate_decl): Remove dead code used for -frepo.
	* repo.c: Remove.
2019-09-06  Martin Liska  <mliska@suse.cz>

	PR c++/91125
	* g++.dg/parse/repo1.C: Remove.
	* g++.dg/rtti/repo1.C: Remove.
	* g++.dg/template/repo1.C: Remove.
	* g++.dg/template/repo10.C: Remove.
	* g++.dg/template/repo11.C: Remove.
	* g++.dg/template/repo2.C: Remove.
	* g++.dg/template/repo3.C: Remove.
	* g++.dg/template/repo4.C: Remove.
	* g++.dg/template/repo5.C: Remove.
	* g++.dg/template/repo6.C: Remove.
	* g++.dg/template/repo7.C: Remove.
	* g++.dg/template/repo8.C: Remove.
	* g++.dg/template/repo9.C: Remove.
	* g++.old-deja/g++.pt/instantiate4.C: Remove.
	* g++.old-deja/g++.pt/instantiate6.C: Remove.
	* g++.old-deja/g++.pt/repo1.C: Remove.
	* g++.old-deja/g++.pt/repo2.C: Remove.
	* g++.old-deja/g++.pt/repo3.C: Remove.
	* g++.old-deja/g++.pt/repo4.C: Remove.
	* lib/g++.exp: Remove removal of repo files.
	* lib/gcc-dg.exp: Likewise.
	* lib/obj-c++.exp: Likewise.

From-SVN: r275450

From-SVN: r275449

Shifting by more than the size of a SUBREG_REG doesn't work, so we either
need to disable splits if an input is paradoxical, or else we need to
generate a clean temporary for intermediate results.

Jakub wrote the first version of this patch, so gets primary credit for it.

	gcc/
	PR target/91635
	* config/riscv/riscv.md (zero_extendsidi2, zero_extendhi<GPR:mode>2,
	extend<SHORT:mode><SUPERQI:mode>2): Don't split if
	paradoxical_subreg_p (operands[0]).
	(*lshrsi3_zero_extend_3+1, *lshrsi3_zero_extend_3+2): Add clobber and
	use as intermediate value.

	gcc/testsuite/
	PR target/91635
	* gcc.c-torture/execute/pr91635.c: New test.
	* gcc.target/riscv/shift-shift-4.c: New test.
	* gcc.target/riscv/shift-shift-5.c: New test.

Co-Authored-By: Jim Wilson <jimw@sifive.com>

From-SVN: r275444

2019-09-05  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/91496
	* parse.c (parse_executable): Improve error messages for
	improperly placed pragmas not preceeding a loop.

	PR fortran/91496
	* gfortran.dg/directive_unroll_5.f90: Adjust error message.

From-SVN: r275442

2019-09-05  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91660
	* decl.c (gfc_match_decl_type_spec): Improve and restore error
	message for malformed types-spec.

2019-09-05  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91660
	* gfortran.dg/pdt_4.f03: Fix invalid code.
	* gfortran.dg/pr91660_1.f90: New test.
	* gfortran.dg/pr91660_2.f90: Ditto.

From-SVN: r275426

	* decl.c (start_decl): Call retrofit_lang_decl for constinit variables.
	* pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for
	constinit variables.

	* g++.dg/cpp2a/constinit13.C: New test.

From-SVN: r275421

2019-09-05  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/gcn/gcn.md (*movti_insn): Set delayeduse for global_store.
	(sync_compare_and_swap<mode>_insn): Likewise.

From-SVN: r275414

	* doc/xml/manual/status_cxx2020.xml: Update status for P0122R7 and
	P1024R3. Remove entry for P0920R2.
	* include/std/span  (__cpp_lib_span): Change value.
	(__extent_storage, __extent_storage<dynamic_extent>): Remove default
	constructor.
	(span): Replace __extent_storage base class with data member.
	(span::_S_subspan_extent): New function.
	(span::empty()): Add nodiscard attribute.
	(span::front, span::back, span::operator[]): Check preconditions.
	(span::first, span::last, span::subspan): Add noexcept. Improve
	precondition checks (LWG 3103).
	(get): Remove redundant condition from static_assert.
	(tuple_element<I, span<T, E>>): Fix static_assert message and simplify.
	(as_writable_bytes): Add inline specifier.
	* include/std/version (__cpp_lib_span): Change value.
	* testsuite/23_containers/span/back_neg.cc: Remove stray semi-colon.
	* testsuite/23_containers/span/front_neg.cc: Likewise.
	* testsuite/23_containers/span/index_op_neg.cc: Likewise.
	* testsuite/23_containers/span/last_neg.cc: Improve test.
	* testsuite/23_containers/span/subspan_neg.cc: Likewise.
	* testsuite/23_containers/span/1.cc: New test.
	* testsuite/23_containers/span/2.cc: New test.
	* testsuite/23_containers/span/back_assert_neg.cc: New test.
	* testsuite/23_containers/span/first_2_assert_neg.cc: New test.
	* testsuite/23_containers/span/first_assert_neg.cc: New test.
	* testsuite/23_containers/span/first_neg.cc: New test.
	* testsuite/23_containers/span/front_assert_neg.cc: New test.
	* testsuite/23_containers/span/index_op_assert_neg.cc: New test.
	* testsuite/23_containers/span/last_2_assert_neg.cc: New test.
	* testsuite/23_containers/span/last_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_2_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_3_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_4_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_5_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_6_assert_neg.cc: New test.
	* testsuite/23_containers/span/subspan_assert_neg.cc: New test.

From-SVN: r275411

2019-09-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91615
        * expr.c (expand_expr_real_1): Handle misaligned TARGET_MEM_REF
        without movmisalign optab.

From-SVN: r275409

	PR middle-end/91001
	PR middle-end/91105
	PR middle-end/91106
	* calls.c (load_register_parameters): For TYPE_TRANSPARENT_AGGR
	types, use type of their first field instead of type of
	args[i].tree_value.

	* gcc.c-torture/compile/pr91001.c: New test.

From-SVN: r275408

2019-09-05  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/91656
	* postreload-gcse.c (record_last_mem_set_info): Revert addition
	of early out.

	* gcc.dg/torture/pr91656-1.c: New testcase.
	* gcc.dg/torture/pr91656-2.c: Likewise.
	* gcc.dg/torture/pr91656-3.c: Likewise.

From-SVN: r275406

https://gcc.gnu.org/ml/gcc-patches/2019-08/msg02063.html
	* cp-tree.h (DECL_VTABLE_OR_VTT_P): Forward to DECL_VIRTUAL_P.

From-SVN: r275404

2019-09-05  JeanHeyd Meneide  <phdofthehouse@gmail.com>

	* include/Makefile.am: Add <span> header.
	* include/Makefile.in: Regenerate.
	* include/bits/range_access.h (__adl_begin, __adl_end, __adl_cbegin)
	(__adl_cend, __adl_rbegin, __adl_rend, __adl_crbegin, __adl_crend)
	(__adl_data, __adl_cdata, __adl_size, __adl_empty, __adl_to_address):
	New functions for performing argument-dependent lookup of range
	customization points.
	* include/bits/stl_iterator.h (__normal_iterator): Add
	_GLIBCXX20_CONSTEXPR to all functions.
	* include/std/span: New header.
	* include/std/version (__cpp_lib_span): Define feature test macro.
	* testsuite/23_containers/span/contiguous_range_neg.cc: New test.
	* testsuite/23_containers/span/everything.cc: New test.
	* testsuite/23_containers/span/get_neg.cc: New test.
	* testsuite/23_containers/span/last_neg.cc: New test.
	* testsuite/23_containers/span/subspan_neg.cc: New test.
	* testsuite/23_containers/span/tuple_element_dynamic_neg.cc: New test.
	* testsuite/23_containers/span/tuple_element_oob_neg.cc: New test.
	* testsuite/23_containers/span/tuple_size_neg.cc: New test.

From-SVN: r275403

https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00280.html
	libcpp/
	PR preprocessor/91639
	* directives.c (do_include_common): Tell lexer we're a #include.
	* files.c (_cpp_stack_file): Lexer will have always incremented.
	* internal.h (struct cpp_context): Extend in_directive's
	semantics.
	* lex.c (_cpp_lex_direct): Increment line for final \n when lexing
	for an ISO #include.
	* line-map.c (linemap_line_start): Remember if we overflowed.

	gcc/testsuite/
	PR preprocessor/91639
	* c-c++-common/cpp/pr91639.c: New.
	* c-c++-common/cpp/pr91639-one.h: New.
	* c-c++-common/cpp/pr91639-two.h: New.

From-SVN: r275402

2019-09-05  Richard Biener  <rguenther@suse.de>

	PR middle-end/90501
	* tree-inline.c (declare_return_variable): Mark the return
	slot as addressable after building an address of it.

From-SVN: r275401

	* doc/install.texi: Update and clarify requirements to build GNAT.

From-SVN: r275400

This patch uses the workaround Richi suggested in the PR: make
discover_nonconstant_array_refs mark the source of an IFN_LOAD_LANES
call and the destination of an IFN_STORE_LANES call as addressable,
so that they don't end up being REG rtxes during expansion.

I had to move the discover_nonconstant_array_refs call outside the
currently_expanding_to_rtl block since otherwise mark_addressable
just queues the decision for later.

2019-09-05  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	PR middle-end/91577
	* cfgexpand.c (discover_nonconstant_array_refs): Force the source
	of an IFN_LOAD_LANES call and the destination of an IFN_STORE_LANES
	call to be in memory.
	(pass_expand::execute): Call discover_nonconstant_array_refs before
	setting currently_expanding_to_rtl.

gcc/testsuite/
	PR middle-end/91577
	* gfortran.dg/pr91577.f90: New test, taken from temporary_1.f90.

From-SVN: r275399

The URL for the "What Are Allocators Good For?" article has been a
recurring source of problems. It moved from the C/C++ Users Journal
website to the Dr Dobbs site after CUJ shut down, and the original
domain changed hands, leaving old links pointing to nefarious sites.

Now the URL to the copy on drdobbs.com no longer works either and I
can't find a (legal) copy of the article online. The simplest solution
is to remove the URL.

	* doc/xml/manual/allocator.xml: Remove URL for bibliography entry.
	* doc/html/*: Regenerate.

From-SVN: r275398

Currently, when a new thread needs to use the RANDOM_NUMBER intrinsic,
the per-thread PRNG state is initialized by copying the master state
and then jumping forwards N*2**128 entries in the stream so that the
PRNG streams for different threads don't alias each other, where N is
the number of threads that have so far initialized the PRNG.

With this patch the master state itself is jumped forwards once each
time a new thread initializes the PRNG, thus obviating the need to
jump through all the N-1 previous streams. Effectively turning an O(N)
algorithm into an O(1) one.

Regtested on x86_64-pc-linux-gnu.

libgfortran/ChangeLog:

2019-09-05  Janne Blomqvist  <jb@gcc.gnu.org>

	* intrinsics/random.c (master_init): Replace with
	master_state.init.
	(njumps): Remove variable.
	(master_state): Make instance of struct prng_state.
	(init_rand_state): When jumping, update the master_state once
	instead of keeping track of how many jumps need to be done.
	(SZU64): Modify to handle new master_state.
	(SZ): Likewise.
	(random_seed_i4): Likewise.
	(random_seed_i8): Likewise.

From-SVN: r275397

	PR tree-optimization/91663
	* go-lang.c (go_langhook_post_options): Clear
	flag_partial_inlining.

From-SVN: r275396

From-SVN: r275395

2019-09-04  Steven G. Kargl  <kargl@gcvc.gnu.org>

	PR fortran/91650
	* io.c (match_io_element):  An output IO list item cannot be a BOZ.

2019-09-04  Steven G. Kargl  <kargl@gcvc.gnu.org>

	PR fortran/91650
	* gfortran.dg/pr91650_1.f90: New test.
	* gfortran.dg/pr91650_2.f90: Ditto.

From-SVN: r275391

The pthread_cond_clockwait function is available in glibc since the 2.30
release. If this function is available in the C library it can be used
to fix PR libstdc++/41861 by supporting std::chrono::steady_clock
properly with std::condition_variable.

This means that code using std::condition_variable::wait_for or
std::condition_variable::wait_until with std::chrono::steady_clock is no
longer subject to timing out early or potentially waiting for much
longer if the system clock is warped at an inopportune moment.

If pthread_cond_clockwait is available then std::chrono::steady_clock is
deemed to be the "best" clock available which means that it is used for
the relative wait_for calls and absolute wait_until calls using
user-defined clocks. Calls explicitly using std::chrono::system_clock
continue to use CLOCK_REALTIME via __gthread_cond_timedwait.

If pthread_cond_clockwait is not available then
std::chrono::system_clock is deemed to be the "best" clock available
which means that the previous suboptimal behaviour remains.

2019-09-04  Mike Crowe  <mac@mcrowe.com>

	PR libstdc++/41861
	* acinclude.m4 (GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT): Check for new
	pthread_cond_clockwait function.
	* configure.ac: Use GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* include/std/condition_variable: (condition_variable): Rename
	__steady_clock_t typedef and add system_clock. Change __clock_t to be
	a typedef for the preferred clock to convert arbitrary other clocks to.
	[_GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT] (wait_until): Add a steady_clock
	overload.
	(wait_until): Change __clock_t overload to use system_clock.
	[_GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT] (__wait_until_impl): Add
	steady_clock overload that calls pthread_cond_clockwait.
	(__wait_until_impl): Change __clock_t overload to use system_clock.
	(condition_variable_any) [_GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT]: Use
	steady_clock for __clock_t if pthread_cond_clockwait is available.

From-SVN: r275390

2019-09-04  Mike Crowe  <mac@mcrowe.com>

	* testsuite/30_threads/condition_variable/members/2.cc (test01):
	Parameterise so that test can be run against an arbitrary clock.
	(main): Test using std::chrono::steady_clock and a user-defined
	clock in addition to the previous std::chrono::system_clock.
	* testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.

From-SVN: r275389

Vtable verification currently does not work properly with
link time optimization.  Until this can be fixed users should
not be allowed to specify both options together.

2019-09-04  Caroline Tice  <cmtice@google.com>
 
        *  opts.c (finish_options):  Disallow -fvtable-verify and -flto to be
           specified together.

From-SVN: r275388

From-SVN: r275387

	PR target/32413
	* config/i386/i386.c (inline_secondary_memory_needed): Return true
	for QI and HImode moves between SSE and general registers.

From-SVN: r275377

The patch enables warning with Wextra due to PR91593 and warnings with
allmodconfig kernel build. Once these issues are resolved, we could
consider promoting it to Wall.

2019-09-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	PR c/78736
	* doc/invoke.texi: Document -Wenum-conversion.

c-family
	* c.opt (Wenum-conversion): New option.

c/
	* c-typeck.c (convert_for_assignment): Handle Wenum-conversion.

testsuite/
	* gcc.dg/Wenum-conversion.c: New test-case.

From-SVN: r275376

2019-09-04  Martin Liska  <mliska@suse.cz>

	* mklog: Do not print changed functions for
	testsuite files.

From-SVN: r275369