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

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

	* mklog: Parse PR references from newly added
	test files.

From-SVN: r275368

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

	* mklog: Use argparse instead of getopt.

From-SVN: r275367

2019-09-04  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/36262
	* postreload-gcse.c: Include intl.h and gcse.h.
	(insert_expr_in_table): Insert at the head of cur_expr->avail_occr
	to avoid linear list walk.
	(record_last_mem_set_info): Gate off if not computing transparentness.
	(get_bb_avail_insn): If transparentness isn't computed give up
	early.
	(gcse_after_reload_main): Skip compute_transp and extended PRE
	if gcse_or_cprop_is_too_expensive says so.

From-SVN: r275365

2019-09-03  Steven G. Kargl  <kargl@gcc.gnu.org>

	* gfortran.texi: Update documentation to catch up with BOZ changes.
	* invoke.texi: Fix English from previous BOZ changes commit.

From-SVN: r275364

From-SVN: r275362

    
    If we dot-import a package, we should only add an imported variable to
    the package bindings if the variable is in the package being imported.
    A test case for this is the 1.13 os package, in which ErrClosed and
    friends are defined both locally and in the imported internal/oserror package.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/192718

From-SVN: r275358

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/msp430.c (msp430_init_sections): Remove handling of the
	noinit section.
	(msp430_select_section): Handle decls with the "noinit" attribute with
	default_elf_select_section.
	Handle SECCAT_RODATA_MERGE_* section types with
	default_elf_select_section.
	Add comments about handling of unsupported section types.
	(msp430_section_type_flags): Remove handling of the noinit section.

From-SVN: r275357

gcc/ChangeLog:

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/msp430.c (msp430_attr): Remove warnings about
	conflicting msp430-specific attributes.
	(msp430_section_attr): Likewise.
	Add warnings about conflicts with generic "noinit" and "section"
	attributes.
	Fix grammar in -mlarge error message.
	(msp430_data_attr): Rename to msp430_persist_attr.
	Add warnings about conflicts with generic "noinit" and "section"
	attributes.
	Add warning for when variable is not initialized.
	Chain conditionals which prevent the attribute being added.
	(ATTR_EXCL): New helper.
	(attr_reent_exclusions): New exclusion table.
	(attr_naked_exclusions): Likewise.
	(attr_crit_exclusions): Likewise.
	(attr_lower_exclusions): Likewise.
	(attr_upper_exclusions): Likewise.
	(attr_either_exclusions): Likewise.
	(attr_persist_exclusions): Likewise.
	(msp430_attribute_table): Update with exclusion rules.
	(msp430_output_aligned_decl_common): Don't output common symbol if decl
	has a section.

gcc/testsuite/ChangeLog:

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* gcc.target/msp430/data-attributes-2.c: New test.
	* gcc.target/msp430/function-attributes-4.c: Update dg-warning
	strings.
	* gcc.target/msp430/region-attribute-misuse.c: Likewise.

From-SVN: r275356

gcc/ChangeLog:

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config/msp430/msp430.c (TARGET_HANDLE_GENERIC_ATTRIBUTE): Define.
	(msp430_handle_generic_attribute): New function.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in: Add TARGET_HANDLE_GENERIC_ATTRIBUTE.
	* hooks.c (hook_tree_treeptr_tree_tree_int_boolptr_null): New.
	* hooks.h (hook_tree_treeptr_tree_tree_int_boolptr_null): New.
	* target.def: Define new hook TARGET_HANDLE_GENERIC_ATTRIBUTE.

gcc/c-family/ChangeLog:

2019-09-03  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* c-attribs.c (handle_section_attribute): Call the
	handle_generic_attribute target hook after performing target
	independent processing.
	(handle_noinit_attribute): Likewise.

From-SVN: r275355

	PR tree-optimization/91504
	* match.pd: Add ((~a & b) ^a) --> (a | b).

        PR tree-optimization/91504
	gcc.dg/tree-ssa/pr91504.c: New test.

From-SVN: r275354

	* rust-demangle.c (unescape): Remove.
	(parse_lower_hex_nibble): New function.
	(parse_legacy_escape): New function.
	(is_prefixed_hash): Use parse_lower_hex_nibble.
	(looks_like_rust): Use parse_legacy_escape.
	(rust_demangle_sym): Use parse_legacy_escape.
	* testsuite/rust-demangle-expected: Add 'llv$u6d$' test.

From-SVN: r275353

	* c-cppbuiltin.c (builtin_define_with_hex_fp_value): Always expand
	when using -fgo-dump-spec.

From-SVN: r275352

	PR target/91604
	* config/i386/i386-expand.c (split_double_mode): If there is more than
	one MEM operand and they are rtx_equal_p, reuse lo_half/hi_half from
	already split matching MEM operand instead of calling adjust_address
	again.

	* gcc.target/i386/pr91604.c: New test.

From-SVN: r275344

From-SVN: r275343

2019-09-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91603
        PR middle-end/91612
        PR middle-end/91613
        * expr.c (expand_expr_real_1): Handle unaligned decl_rtl
        and SSA_NAME referring to CONSTANT_P correctly.

testsuite:
2019-09-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/91603
        * testsuite/gcc.target/arm/pr91603.c: New test.

From-SVN: r275342

2019-09-03  Chung-Lin Tang <cltang@codesourcery.com>

	libatomic/
	PR other/79543
	* acinclude.m4 (LIBAT_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libffi/
	PR other/79543
	* acinclude.m4 (LIBAT_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libgomp/
	PR other/79543
	* acinclude.m4 (LIBGOMP_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libitm/
	PR other/79543
	* acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libstdc++-v3/
	PR other/79543
	* acinclude.m4 (GLIBCXX_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

From-SVN: r275341

2019-09-03  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.h (vn_nary_op_lookup): Remove.
	(vn_nary_op_insert): Likewise.
	* tree-ssa-sccvn.c (init_vn_nary_op_from_op): Remove.
	(vn_nary_op_lookup): Likewise.
	(vn_nary_op_insert): Likewise.

From-SVN: r275338

gcc/testsuite/ChangeLog:

2019-09-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	* gcc.target/s390/sigfpe-eh.c: Forgotten test.

From-SVN: r275337

The new sigfpe-eh.c fails with

    internal compiler error: RTL check: expected elt 0 type 'e' or 'u', have 'w' (rtx const_int)

This is most likely due to a typo: XEXP (*op1, 0) was used, when
XEXP (*op0, 1) was intended.  This did not cause any user-visible
problems, because reversed_comparison_code_parts ignores the
respective argument, and the release compiler is built without RTL
checks.

gcc/ChangeLog:

2019-09-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390.c (s390_canonicalize_comparison): Use XEXP
	(*op0, 1) instead of XEXP (*op1, 0).

gcc/testsuite/ChangeLog:

2019-09-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	* gcc.target/s390/sigfpe-eh.c: New test.

From-SVN: r275336

This patch implements the __jcvt ACLE intrinsic [1] that maps down to the FJCVTZS [2] instruction from Armv8.3-a.
No fancy mode iterators or nothing. Just a single builtin, UNSPEC and define_insn and the associate plumbing.
This patch also defines __ARM_FEATURE_JCVT to indicate when the intrinsic is available.

[1] https://developer.arm.com/docs/101028/latest/data-processing-intrinsics
[2] https://developer.arm.com/docs/ddi0596/latest/simd-and-floating-point-instructions-alphabetic-order/fjcvtzs-floating-point-javascript-convert-to-signed-fixed-point-rounding-toward-zero

	* config/aarch64/aarch64.md (UNSPEC_FJCVTZS): Define.
	(aarch64_fjcvtzs): New define_insn.
	* config/aarch64/aarch64.h (TARGET_JSCVT): Define.
	* config/aarch64/aarch64-builtins.c (aarch64_builtins):
	Add AARCH64_JSCVT.
	(aarch64_init_builtins): Initialize __builtin_aarch64_jcvtzs.
	(aarch64_expand_builtin): Handle AARCH64_JSCVT.
	* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
	__ARM_FEATURE_JCVT where appropriate.
	* config/aarch64/arm_acle.h (__jcvt): Define.

	* gcc.target/aarch64/acle/jcvt_1.c: New test.

From-SVN: r275335

This patch implements the ACLE intrinsics to access the FRINT[32,64][Z,X] scalar[1] and vector[2][3] instructions
from Armv8.5-a. These are enabled when the __ARM_FEATURE_FRINT macro is defined.

They're added in a fairly standard way through builtins and unspecs at the RTL level.

	* config/aarch64/aarch64.md ("unspec"): Add UNSPEC_FRINT32Z,
	UNSPEC_FRINT32X, UNSPEC_FRINT64Z, UNSPEC_FRINT64X.
	(aarch64_<frintnzs_op><mode>): New define_insn.
	* config/aarch64/aarch64.h (TARGET_FRINT): Define.
	* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
	__ARM_FEATURE_FRINT when appropriate.
	* config/aarch64/aarch64-simd-builtins.def: Add builtins for frint32z,
	frint32x, frint64z, frint64x.
	* config/aarch64/arm_acle.h (__rint32zf, __rint32z, __rint64zf,
	__rint64z, __rint32xf, __rint32x, __rint64xf, __rint64x): Define.
	* config/aarch64/arm_neon.h (vrnd32z_f32, vrnd32zq_f32, vrnd32z_f64,
	vrnd32zq_f64, vrnd32x_f32, vrnd32xq_f32, vrnd32x_f64, vrnd32xq_f64,
	vrnd64z_f32, vrnd64zq_f32, vrnd64z_f64, vrnd64zq_f64, vrnd64x_f32,
	vrnd64xq_f32, vrnd64x_f64, vrnd64xq_f64): Define.
	* config/aarch64/iterators.md (VSFDF): Define.
	(FRINTNZX): Likewise.
	(frintnzs_op): Likewise.

	* gcc.target/aarch64/acle/rintnzx_1.c: New test.
	* gcc.target/aarch64/simd/vrndnzx_1.c: Likewise.

From-SVN: r275334

This patch adds '-mcpu' options for following CPUs:
Cortex-A77, Cortex-A76AE, Cortex-A65, Cortex-A65AE, and Cortex-A34.

Related specifications are as following:
https://developer.arm.com/ip-products/processors/cortex-a

Bootstraped/regtested for aarch64-none-linux-gnu.

2019-09-03  Dennis Zhang  <dennis.zhang@arm.com>

	* config/aarch64/aarch64-cores.def (AARCH64_CORE): New entries
	for Cortex-A77, Cortex-A76AE, Cortex-A65, Cortex-A65AE, and
	Cortex-A34.
	* config/aarch64/aarch64-tune.md: Regenerated.
	* doc/invoke.texi: Document the new processors.

From-SVN: r275333