Certain broken versions of xsltproc ignore the --nonet option and will
attempt to fetch the docbook stylesheet from the WWW when it isn't in
the local XML catalog.

This patch checks for the local stylesheet directory first, and doesn't
use xsltproc if no local stylesheets are found. Checking for the local
directory is done using xmlcatalog if available, only checking the
hardcoded list of directories if xmlcatalog fails. The right directory
for Suse is added to the hardcoded list.

This should avoid doing an xsltproc check that would need to download
the stylesheet, so no network connection is made even if a broken
xsltproc is present.

	PR libstdc++/89466
	* acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local
	stylesheet directories before check for xsltproc. Try to use
	xmlcatalog to find local stylesheet directory before trying hardcoded
	paths. Add path used by suse to hardcoded paths. Adjust xsltproc
	check to look for the same stylesheet as doc/Makefile.am uses. Don't
	use xsltproc if xmlcatalog fails to find a local stylesheet.
	* configure.ac: Check for xmlcatalog.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.
	* include/Makefile.in: Likewise.
	* libsupc++/Makefile.in: Likewise.
	* po/Makefile.in: Likewise.
	* python/Makefile.in: Likewise.
	* src/Makefile.in: Likewise.
	* src/c++11/Makefile.in: Likewise.
	* src/c++17/Makefile.in: Likewise.
	* src/c++98/Makefile.in: Likewise.
	* src/filesystem/Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.

From-SVN: r269249

From-SVN: r269248

From-SVN: r269247

2019-02-27  Martin Jambor  <mjambor@suse.cz>
	    Martin Sebor  <msebor@redhat.com>

	* doc/invoke.texi (Warning Options): Reword description of
	-Wno-absolute-value.


Co-Authored-By: Martin Sebor <msebor@redhat.com>

From-SVN: r269246

/cp
2019-02-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/89488
	* method.c (process_subob_fn): When maybe_instantiate_noexcept
	returns false don't call merge_exception_specifiers.

/testsuite
2019-02-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/89488
	* g++.dg/cpp0x/nsdmi15.C: New.

/cp
2019-02-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/88987
	* parser.c (cp_parser_noexcept_specification_opt): Return NULL_TREE
	for a non-constant parsed expression.

/testsuite
2019-02-27  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/88987
	* g++.dg/cpp0x/pr88987.C: New.

From-SVN: r269245

	PR tree-optimization/89280
	* tree-cfgcleanup.c (maybe_dead_abnormal_edge_p,
	builtin_setjmp_setup_bb): New functions.
	(cleanup_control_flow_pre): Ignore maybe_dead_abnormal_edge_p edges.
	When visiting __builtin_setjmp_setup block, queue in special
	setjmp_vec vector edges from .ABNORMAL_DISPATCHER to corresponding
	__builtin_setjmp_receiver.  Remove .ABNORMAL_DISPATCHER basic blocks
	from visited after the loop if they don't have any visited successor
	blocks.

	* gcc.c-torture/compile/pr89280.c: New test.
	* gcc.dg/torture/pr57147-2.c: Don't expect a setjmp after noreturn
	function.  Skip the test for -O0.

From-SVN: r269243

    
    Updates golang/go#28104
    
    Reviewed-on: https://go-review.googlesource.com/c/162882

From-SVN: r269242

    
    Fixes golang/go#25302.
    
    Reviewed-on: https://go-review.googlesource.com/c/163298

From-SVN: r269241

    
    Reviewed-on: https://go-review.googlesource.com/c/158838

From-SVN: r269240

From-SVN: r269239

2018-02-26  Steve Ellcey  <sellcey@marvell.com>

	* gfortran.dg/simd-builtins-1.f90: Update for aarch64*-*-*.
	* gfortran.dg/simd-builtins-2.f90: Ditto.
	* gfortran.dg/simd-builtins-6.f90: Ditto.
	* gfortran.dg/simd-builtins-8.f90: New test.
	* gfortran.dg/simd-builtins-8.h: New header file.

From-SVN: r269236

2018-02-26  Steve Ellcey  <sellcey@marvell.com>

	* config/aarch64/aarch64.c (aarch64_get_multilib_abi_name):
	New function.
	(TARGET_GET_MULTILIB_ABI_NAME): New macro.

From-SVN: r269235

The Compare, Hash, and Pred template parameters should be constrained in
the C++17 deduction guides for associative and unordered containers.

The deduction guides for stack, queue and priority_queue are already
constrained, but this patch makes them use the _RequireNotAllocator
helper instead of reproducing the logic each time.

	PR libstdc++/89477
	* include/bits/alloc_traits.h (_RequireNotAllocator): New helper for
	container deduction guides.
	* include/bits/hashtable.h (_RequireNotAllocatorOrIntegral): Likewise.
	* include/bits/stl_map.h (map): Use _RequireNotAllocator to constrain
	parameters in deduction guides.
	* include/bits/stl_multimap.h (multimap): Likewise.
	* include/bits/stl_multiset.h (multiset): Likewise.
	* include/bits/stl_queue.h (queue, priority_queue): Likewise.
	* include/bits/stl_set.h (set): Likewise.
	* include/bits/stl_stack.h (stack): Likewise.
	* include/bits/unordered_map.h (unordered_map, unordered_multimap):
	use _RequireNotAllocator and _RequireNotAllocatorOrIntegral to
	constrain parameters in deduction guides.
	* include/bits/unordered_set.h (unordered_set, unordered_multiset):
	Likewise.
	* testsuite/23_containers/map/cons/deduction.cc: Test additional
	deduction cases.
	* testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
	* testsuite/23_containers/set/cons/deduction.cc: Likewise.
	* testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise.
	* testsuite/23_containers/unordered_multimap/cons/deduction.cc:
	Likewise.
	* testsuite/23_containers/unordered_multiset/cons/deduction.cc:
	Likewise.
	* testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise.

From-SVN: r269234

	PR c++/89507
	* tree.c (valid_constant_size_p): Deal with size INTEGER_CSTs
	with types other than sizetype/ssizetype.

	* g++.dg/other/new2.C: New test.

From-SVN: r269233

	* config/sparc/sparc-opts.h (enum processor_type): Rename to...
	(enum sparc_processor_type): ...this.
	(enum sparc_code_model_type): New enumeration type.
	(enum sparc_memory_model_type): Tweak comments.
	* config/sparc/sparc.opt (mcpu): Adjust to above renaming.
	(mtune): Likewise.
	(mcmodel): Use sparc_code_model enumeration and variable.
	(sparc_code_model): New enumeration.
	(mdebug): Add Undocumented marker.
	* config/sparc/sparc.h (enum cmodel): Delete.
	(sparc_cmodel): Likewise.
	(TARGET_CM_MEDLOW): Adjust to above renaming.
	(TARGET_CM_MEDMID): Likewise.
	(TARGET_CM_MEDANY): Likewise.
	(TARGET_CM_EMBMEDANY): Likewise.
	* config/sparc/sparc.c (sparc_cmodel): Delete.
	(sparc_option_override): Remove string/value mapping support for the
	code model.  Move code and memory model support to after the handling
	of target flags.  Do private machine setup last.
	(sparc_emit_set_symbolic_const64): Use sparc_code_model.
	(sparc_legitimize_reload_address): Likewise.
	(sparc_output_mi_thunk): Likewise.
	* config/sparc/sparc.md (cpu): Adjust comment to above renaming.

From-SVN: r269232

re PR tree-optimization/89500 (ICE: tree check: expected integer_cst, have ssa_name in get_len, at tree.h:5653)

	PR tree-optimization/89500
	* tree-ssa-strlen.c (stridx_strlenloc): Adjust comment.
	(handle_builtin_strlen): Remove noncst_bound variable.  Always
	optimize strnlen (x, 0) to 0.  Optimize strnlen (x, cst) to
	cst if the first cst bytes starting at x are known to be non-zero,
	even if the string is not zero terminated.  Don't try to modify
	*si for strnlen.  Update strlen_to_stridx only for strlen or if
	we can prove strnlen returns the same value as strlen would.

	* gcc.dg/pr89500.c: New test.
	* gcc.dg/Wstringop-overflow-10.c: New test.
	* gcc.dg/strlenopt-60.c: New test.

From-SVN: r269230

	PR libstdc++/89416
	* include/bits/alloc_traits.h (__is_alloc_insertable_impl): Change
	to class template and partial specialization using void_t.
	(__is_copy_insertable, __is_move_insertable): Adjust base class.

From-SVN: r269229

2019-02-26  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/89492
	* check.c (gfc_calculate_transfer_sizes): Handle cases where
	storage size of elements of MOLD is 0.

	PR fortran/89492
	* gfortran.dg/pr89492.f90: New test.

From-SVN: r269227

re PR fortran/89496 (gcc/fortran/trans-types.c:3015:9: runtime error: member access within null pointer of type 'struct gfc_formal_arglist')

2019-02-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/89496
	* trans-types.c (get_formal_from_actual_arglist): If
	the actual arglist has no expression, the corresponding
	formal arglist is an alternate return.

2019-02-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/89496
	* gfortran.dg/altreturn_9_0.f90: New file.
	* gfortran.dg/altreturn_9_1.f90: New file.

From-SVN: r269226

	* io/transfer.c (transfer_array_inner): Do not
	cast charlen to index_type.

From-SVN: r269224

2019-02-26  Martin Liska  <mliska@suse.cz>

	* alloc-pool.h (struct pool_usage): Remove extra
	print_dash_line.
	* bitmap.h (struct bitmap_usage): Likewise.
	* ggc-common.c (struct ggc_usage): Likewise.
	* mem-stats.h (struct mem_usage): Likewise.
	(mem_alloc_description::dump): Print dash lines
	here and repeat header at the end of a table report.
	It's then more readable.
	* tree-phinodes.c (phinodes_print_statistics): Make
	horizontal alignment.
	* tree-ssanames.c (ssanames_print_statistics): Likewise.
	* vec.c (struct vec_usage): Remove extra print_dash_line.
	* vec.h (vec_safe_grow_cleared): Pass PASS_MEM_STAT.
2019-02-26  Martin Liska  <mliska@suse.cz>

	* symtab.c (ht_dump_statistics): Make
	horizontal alignment for statistics.

From-SVN: r269221

2019-02-26  Martin Liska  <mliska@suse.cz>

	* lto-symtab.c: Remove.

From-SVN: r269220

	* doc/extend.texi (__builtin_object_size):
	Use @pxref instead of @xref inside parenthesis.
	(__builtin_has_attribute): Add missing comma after @xref.
	(__builtin_object_size): Ditto.
	* doc/md.texi (cond_*{mode}): Use @samp instead of @var around op1[i].
	* fortran/invoke.texi (-ffpe-trap): Use @var for every item
	in the list.

From-SVN: r269219

re PR rtl-optimization/87761 ([MIPS] New FAIL: gcc.target/mips/fix-r4000-10.c   -O1 start with r265398)

	PR rtl-optimization/87761
	* regcprop.c (copyprop_hardreg_forward_1): Use REG_UNUSED notes to
	detect obviously dead insns and delete them.

From-SVN: r269218

With gcc 4.8.5, btest_lto ends up with a privatized name for the variable with
name 'global':
...
$ nm btest_lto | grep ' d ' | grep global
0000000000617150 d global.2530
...
which makes test5 fail:
...
    test5: unexpected syminfo name got global.2530 expected global
...

Fix this failure by accepting this type of name as a valid name in btest_lto.

2019-02-26  Tom de Vries  <tdevries@suse.de>

	* btest.c (test5): Allow global.* as minimal symbol name for global.

From-SVN: r269217

    
    Reviewed-on: https://go-review.googlesource.com/c/163742

From-SVN: r269216

	PR go/86535
    runtime: always declare nanotime in Go
    
    For libgo it's always defined in C.
    
    Updates https://gcc.gnu.org/PR86535
    
    Reviewed-on: https://go-review.googlesource.com/c/163743

From-SVN: r269214

	PR c++/89481
	* constexpr.c (cxx_eval_store_expression): When changing active union
	member, set no_zero_init.

	* g++.dg/cpp1y/constexpr-89481.C: New test.

From-SVN: r269213

2019-02-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/89505
	* tree-ssa-structalias.c (compute_dependence_clique): Make sure
	to handle restrict pointed-to vars with multiple subvars
	correctly.

	* gcc.dg/torture/pr89505.c: New testcase.

From-SVN: r269212

2019-02-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/89489
	* tree-parloops.c (create_loop_fn): Copy over last_clique.

From-SVN: r269210

	* gnat.dg/opt77.adb: New test.
	* gnat.dg/opt77_pkg.ad[sb]: New helper.

From-SVN: r269208

	PR fortran/43210
	* trans-array.c (gfc_conv_array_initializer): Use RANGE_EXPR instead
	of duplicating the initializer possibly many times.

From-SVN: r269207

	PR target/89474
	* config/i386/i386.c (remove_partial_avx_dependency): Call
	df_analyze etc. before creation of the v4sf_const0 pseudo, rather than
	after changing possibly many instructions to use that pseudo.  Fix up
	insertion of v4sf_const0 setter at the start of bb.

	* gcc.target/i386/pr89474.c: New test.

From-SVN: r269206

If dwz is not available, then the libbacktrace test b3test_dwz_buildid fails
like this:
...
gmake[4]: *** No rule to make target 'b3test_dwz_buildid'
...

Fix this by guarding the test with HAVE_DWZ.

Tested on x86_64 with and without dwz installed.

2019-02-26  Tom de Vries  <tdevries@suse.de>

	* Makefile.am (TESTS): Only add b3test_dwz_buildid if HAVE_DWZ.
	* Makefile.in: Regenerate.

From-SVN: r269204

2019-02-25  Sandra Loosemore  <sandra@codesourcery.com>

	PR c/80409

	gcc/
	* doc/extend.texi (Variadic Pointer Args): New section.

From-SVN: r269203

    
    Reviewed-on: https://go-review.googlesource.com/c/162881

From-SVN: r269202

From-SVN: r269201

re PR c/89495 (gcc/c-family/c-format.c:1272:20: runtime error: signed integer overflow: 214748365 * 10 cannot be represented in type 'int')

	PR c/89495
	* c-format.c (maybe_read_dollar_number): Compute nargnum in
	HOST_WIDE_INT type to avoid overflows and change overflow_flag
	checking.

From-SVN: r269198

	PR c/77754
	* gcc.c-torture/compile/pr77754-1.c: New test.
	* gcc.c-torture/compile/pr77754-2.c: New test.
	* gcc.c-torture/compile/pr77754-3.c: New test.
	* gcc.c-torture/compile/pr77754-4.c: New test.
	* gcc.c-torture/compile/pr77754-5.c: New test.
	* gcc.c-torture/compile/pr77754-6.c: New test.

From-SVN: r269197

2019-02-25  Sandra Loosemore  <sandra@codesourcery.com>
	    Martin Sebor  <msebor@gmail.com>

	gcc/
	* c-family/c.opt (Wmissing-attributes): Clean up doc string.
	* common.opt (Wattribute-alias): Likewise.
	* doc/invoke.texi (Option Summary): List general form of
	-Wattribute-alias=.  List positive form of -Wmissing-attributes.
	(-Wmissing-attributes): Invert entry, rewrite and correct default.
	Add cross-references.
	(-Wattribute-alias): Rewrite and correct default.  Mention
	considered attributes (same as for -Wmissing-attributes).

Co-Authored-By: Martin Sebor <msebor@gmail.com>

From-SVN: r269196