The dwarf2 handling of vector constants currently divides the vector
into a length (number of elements) and byte element size.  This doesn't
work well for MODE_VECTOR_BOOL, where several elements are packed into
the same byte.

We should probably add a way of encoding this in future, but for now
the safest thing is to punt, like we already do for variable-length
vectors.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* dwarf2out.c (loc_descriptor): Punt for MODE_VECTOR_BOOL.
	(add_const_value_attribute): Likewise.

gcc/testsuite/
	* gcc.target/aarch64/sve/acle/general/debug_4.c: New test.

From-SVN: r279165

The direct_slp_reduc code in vect_create_epilog_for_reduction was
still assuming that all types involved in a reduction are the same
(up to types_compatible_p), whereas we now support differences in
sign.  This was causing an ICE in gcc.dg/vect/pr92324-4.c for SVE.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-loop.c (vect_create_epilog_for_reduction): When
	handling direct_slp_reduc, allow the PHI arguments to have
	a different type from the vector elements.

From-SVN: r279164

The analysis phase of vectorizable_condition wasn't recording the
loop masks needed by the transform phase.  This meant that the masks
wouldn't be created in the (rare) case that no other statement needed
them.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-stmts.c (vectorizable_condition): Record the loop
	masks required for extract-last reductions.

gcc/testsuite/
	* gcc.target/aarch64/sve/clastb_9.c: New test.

From-SVN: r279163

Unlike most vector ops, extract-last reductions replace the original
scalar code in-situ rather than adding an adjacent vector implementation.
I.e.:

   dest_1 = COND_EXPR <...>;

becomes:

   dest_1 = .EXTRACT_LAST (...);

gcc.dg/vect/vect-cond-reduc-4.c was ICEing for SVE because we tried
to replace the pattern statement in this way, rather than replacing
the original scalar statement.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-stmts.c (vect_finish_replace_stmt): Always use the
	original scalar statement rather than a pattern statement.
	(vectorizable_condition): Likewise, in the handling of extract-last
	reductions.

From-SVN: r279162

gcc.dg/vect/vect-cond-reduc-5.c was ICEing for SVE because we
tried to use an extract-last reduction for a chain of COND_EXPRs.
Adding support for the chained case would be too invasive for stage 3
so this patch explicitly forbids it instead.  I've filed PR92884 for
the possible future work.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-loop.c (vectorizable_reduction): Don't use
	EXTRACT_LAST_REDUCTION for chained reductions.

From-SVN: r279161

        PR fortran/92872
        * trans-array.c (get_CFI_desc): Fix cond whether saved desc exists.

        PR fortran/92872
        * gfortran.dg/bind_c_optional-1.f90: New.

From-SVN: r279160

Make get_odr_name_for_type check for TYPE_DECL in the way that
its caller warn_types_mismatch previously did.

2019-12-10  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* ipa-utils.h (get_odr_name_for_type): Check for a TYPE_DECL.
	* ipa-devirt.c (warn_types_mismatch): Don't call xstrdup for the
	second demangled name.

gcc/testsuite/
	* gcc.dg/lto/tag-1_0.c, gcc.dg/lto/tag-1_1.c: New test.

From-SVN: r279159

	* gcc.target/i386/avx512f-vmovntpd-2.c: Ensure res is 64-byte aligned.
	* gcc.target/i386/avx512f-vmovntps-2.c: Likewise.

From-SVN: r279158

From-SVN: r279157

2019-12-10  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/92862
	* predict.c (predict_paths_leading_to_edge): Fix typo from e to e2.
	* tree-ssa-loop-niter.c (loop_only_exit_p): Return false
	instead of true;

From-SVN: r279156

	* dwarf.c (struct pcrange): Define.
	(update_pcrange, add_ranges): New static functions.
	(add_unit_addr): Change signature to work with add_ranges.  Don't
	add base_address here.
	(add_unit_ranges): Remove.
	(find_address_ranges): Replace str/ranges parameters with
	dwarf_sections.  Use update_pcrange and add_ranges.  Change all
	callers.
	(add_function_range): Change signature to work with add_ranges.
	Don't add base_address here.
	(add_function_ranges): Remove.
	(read_function_entry): Use update_pcrange and add_ranges.

From-SVN: r279154

libcpp's label_text class wraps a text buffer, along with a flag to
determine if it "owns" the buffer.

The existing ctor exposed this directly, but I found it difficult
to remember the sense of flag, so this patch hides the ctor, in
favor of static member functions "borrow" and "take", to make
the effect on ownership explicit in the name.

gcc/c-family/ChangeLog:
	* c-format.c (range_label_for_format_type_mismatch::get_text):
	Replace label_text ctor called with true with label_text::take.

gcc/c/ChangeLog:
	* c-objc-common.c (range_label_for_type_mismatch::get_text):
	Replace label_text ctor calls.

gcc/cp/ChangeLog:
	* error.c (range_label_for_type_mismatch::get_text): Replace
	label_text ctor calls with label_text::borrow.

gcc/ChangeLog:
	* gcc-rich-location.c
	(maybe_range_label_for_tree_type_mismatch::get_text): Replace
	label_text ctor call with label_text::borrow.
	* gcc-rich-location.h (text_range_label::get_text): Replace
	label_text ctor called with false with label_text::borrow.

libcpp/ChangeLog:
	* include/line-map.h (label_text::label_text): Make private.
	(label_text::borrow): New.
	(label_text::take): New.
	(label_text::take_or_copy): New.

From-SVN: r279153

diagnostic_show_locus adds a newline before doing anything (including
the do-nothing-else case).

This patch removes this initial newline, adding it to all callers
of diagnostic_show_locus instead.

Doing so makes diagnostic_show_locus more flexible, allowing it to be
used in my analyzer patch kit for printing diagnostic paths.

gcc/c-family/ChangeLog:
	* c-format.c (selftest::test_type_mismatch_range_labels): Remove
	initial newline from expected outputs.
	* c-opts.c (c_diagnostic_finalizer): Add pp_newline call before
	call to diagnostic_show_locus.

gcc/ChangeLog:
	* diagnostic-show-locus.c (diagnostic_show_locus): Remove initial
	newline.
	(selftest::test_diagnostic_show_locus_unknown_location): Remove
	initial newline from expected outputs.
	(selftest::test_one_liner_simple_caret): Likewise.
	(selftest::test_one_liner_caret_and_range): Likewise.
	(selftest::test_one_liner_multiple_carets_and_ranges): Likewise.
	(selftest::test_one_liner_fixit_insert_before): Likewise.
	(selftest::test_one_liner_fixit_insert_after): Likewise.
	(selftest::test_one_liner_fixit_remove): Likewise.
	(selftest::test_one_liner_fixit_replace): Likewise.
	(selftest::test_one_liner_fixit_replace_non_equal_range):
	Likewise.
	(selftest::test_one_liner_fixit_replace_equal_secondary_range):
	Likewise.
	(selftest::test_one_liner_fixit_validation_adhoc_locations):
	Likewise.
	(selftest::test_one_liner_many_fixits_1): Likewise.
	(selftest::test_one_liner_many_fixits_2): Likewise.
	(selftest::test_one_liner_labels): Likewise.
	(selftest::test_one_liner_simple_caret_utf8): Likewise.
	(selftest::test_one_liner_caret_and_range_utf8): Likewise.
	(selftest::test_one_liner_multiple_carets_and_ranges_utf8):
	Likewise.
	(selftest::test_one_liner_fixit_insert_before_utf8): Likewise.
	(selftest::test_one_liner_fixit_insert_after_utf8): Likewise.
	(selftest::test_one_liner_fixit_remove_utf8): Likewise.
	(selftest::test_one_liner_fixit_replace_utf8): Likewise.
	(selftest::test_one_liner_fixit_replace_non_equal_range_utf8):
	Likewise.
	(selftest::test_one_liner_fixit_replace_equal_secondary_range_utf8):
	Likewise.
	(selftest::test_one_liner_fixit_validation_adhoc_locations_utf8):
	Likewise.
	(selftest::test_one_liner_many_fixits_1_utf8): Likewise.
	(selftest::test_one_liner_many_fixits_2_utf8): Likewise.
	(selftest::test_one_liner_labels_utf8): Likewise.
	(selftest::test_add_location_if_nearby): Likewise.
	(selftest::test_diagnostic_show_locus_fixit_lines): Likewise.
	(selftest::test_overlapped_fixit_printing): Likewise.
	(selftest::test_overlapped_fixit_printing_utf8): Likewise.
	(selftest::test_overlapped_fixit_printing_2): Likewise.
	(selftest::test_fixit_insert_containing_newline): Likewise.
	(selftest::test_fixit_insert_containing_newline_2): Likewise.
	(selftest::test_fixit_replace_containing_newline): Likewise.
	(selftest::test_fixit_deletion_affecting_newline): Likewise.
	(selftest::test_line_numbers_multiline_range): Likewise.
	* diagnostic.c (default_diagnostic_finalizer): Add pp_newline call
	before call to diagnostic_show_locus.
	(diagnostic_append_note): Likewise.

gcc/fortran/ChangeLog:
	* error.c (gfc_diagnostic_starter): Add pp_newline call before
	call to diagnostic_show_locus.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
	(custom_diagnostic_finalizer): Add pp_newline call before call to
	diagnostic_show_locus.

From-SVN: r279152

From-SVN: r279150

	libgomp/
	PR libgomp/92116
	PR libgomp/92877
	* oacc-mem.c (lookup_dev): Reimplement.  Adjust all users.
	* libgomp.h (struct acc_dispatch_t): Remove 'data_environ' member.
	Adjust all users.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-4-2.c:
	Remove XFAIL.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-4.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr92877-1.c: New file.

Co-Authored-By: Julian Brown <julian@codesourcery.com>

From-SVN: r279147

	libgomp/
	PR libgomp/92503
	* oacc-mem.c (acc_free): Error out instead of 'acc_unmap_data'.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-1.c: New
	file.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-3-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-3.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-4-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_free-pr92503-4.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/clauses-1.c: Adjust.
	* testsuite/libgomp.oacc-c-c++-common/context-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/context-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/context-3.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/context-4.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-13.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-14.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-18.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/lib-91.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/nested-1.c: Likewise.

From-SVN: r279146

	libgomp/
	PR libgomp/92840
	* oacc-mem.c (acc_map_data): Clarify reference counting behavior.
	(acc_unmap_data): Add error case for 'REFCOUNT_INFINITY'.
	* testsuite/libgomp.oacc-c-c++-common/acc_unmap_data-pr92840-1.c:
	New file.
	* testsuite/libgomp.oacc-c-c++-common/acc_unmap_data-pr92840-2.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_unmap_data-pr92840-3.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/clauses-1.c: Adjust.
	* testsuite/libgomp.oacc-c-c++-common/nested-1.c: Adjust.

From-SVN: r279145

PR middle-end/92761 - hash_table::expand invokes assignment on invalid objects
PR middle-end/92762 - hash_table::empty_slow invokes assignment on invalid objects

gcc/ChangeLog:

	PR middle-end/92761
	PR middle-end/92762
	* hash-map-tests.c (test_map_of_type_with_ctor_and_dtor): Tighten
	up tests.
	* hash-table.h (hash_table::expand): Use placement new to copy
	construct objects in uninitialized storage.
	(hash_table::empty_slow): Avoid invoking copy assignment on
	uninitialized objects.

From-SVN: r279139

gcc/cp
2019-12-09  Paolo Carlini  <paolo.carlini@oracle.com>

	* typeck.c (check_for_casting_away_constness): Add location_t
	parameter and use it.
	(maybe_warn_about_useless_cast): Likewise.
	(maybe_warn_about_cast_ignoring_quals): Likewise.
	(build_static_cast_1): Likewise.
	(build_static_cast): Likewise; sets the location of the returned tree.
	(build_reinterpret_cast_1): Likewise.
	(build_reinterpret_cast): Likewise; sets the location of the returned
	tree.
	(build_const_cast_1): Likewise.
	(build_const_cast): Likewise; sets the location of the returned tree.
	(cp_build_c_cast): Likewise.
	(build_c_cast): Adjust.
	(build_ptrmemfunc): Adjust calls.
	(cp_build_unary_op): Pass the location to invert_truthvalue_loc.
	* rtti.c (build_dynamic_cast_1): Add location_t parameter and
	use it.
	(build_dynamic_cast): Likewise.
	* cp-tree.h: Adjust declarations.
	* parser.c (cp_parser_postfix_expression): Pass cp_cast_loc to
	the various build_*_cast functions.
	(get_cast_suggestion): Adjust calls.
	(cp_parser_builtin_offsetof): Likewise.
	* decl.c (reshape_init): Adjust call.
	* method.c (forward_parm): Likewise.
	(build_comparison_op): Likewise.
	* pt.c (tsubst_copy_and_build): Likewise.
	* semantics.c (finish_omp_reduction_clause): Likewise.
	(cp_omp_finish_iterators): Likewise.
	* tree.c (cp_stabilize_reference): Likewise.
	(move): Likewise.
	* typeck2.c (build_functional_cast): Likewise.

	* typeck2.c (build_functional_cast_1): New.
	(build_functional_cast_1): Calls the latter and sets the location
	of the returned tree.

/libcc1
2019-12-09  Paolo Carlini  <paolo.carlini@oracle.com>

	* libcp1plugin.cc (plugin_build_cast_expr): Adjust build_cast
	declaration.

gcc/testsuite
2019-12-09  Paolo Carlini  <paolo.carlini@oracle.com>

	* c-c++-common/Wcast-align.c: Check location(s) too.
	* c-c++-common/Wcast-function-type.c: Likewise.
	* c-c++-common/Wint-to-pointer-cast-1.c: Likewise.
	* c-c++-common/Wint-to-pointer-cast-2.c: Likewise.
	* c-c++-common/Wint-to-pointer-cast-3.c: Likewise.
	* g++.dg/Wcast-function-type.C: Likewise.
	* g++.dg/addr_builtin-1.C: Likewise.
	* g++.dg/conversion/const2.C: Likewise.
	* g++.dg/conversion/dynamic1.C: Likewise.
	* g++.dg/conversion/ptrmem2.C: Likewise.
	* g++.dg/conversion/ptrmem3.C: Likewise.
	* g++.dg/conversion/qual3.C: Likewise.
	* g++.dg/conversion/reinterpret3.C: Likewise.
	* g++.dg/cpp0x/constexpr-cast.C: Likewise.
	* g++.dg/cpp0x/lambda/lambda-conv11.C: Likewise.
	* g++.dg/cpp0x/nullptr04.C: Likewise.
	* g++.dg/cpp0x/reinterpret_cast2.C: Likewise.
	* g++.dg/cpp0x/rv-cast2.C: Likewise.
	* g++.dg/cpp1y/lambda-conv1.C: Likewise.
	* g++.dg/cpp1z/noexcept-type7.C: Likewise.
	* g++.dg/cpp2a/array-conv9.C: Likewise.
	* g++.dg/expr/cast11.C: Likewise.
	* g++.dg/expr/static_cast8.C: Likewise.
	* g++.dg/ext/vector6.C: Likewise.
	* g++.dg/other/conversion1.C: Likewise.
	* g++.dg/parse/pr26997.C: Likewise.
	* g++.dg/rtti/no-rtti.C: Likewise.
	* g++.dg/tc1/dr137.C: Likewise.
	* g++.dg/template/cast4.C: Likewise.
	* g++.dg/warn/Wcast-qual1.C: Likewise.
	* g++.dg/warn/Wcast-qual2.C: Likewise.
	* g++.dg/warn/Wconditionally-supported-1.C: Likewise.
	* g++.dg/warn/Wuseless-cast.C: Likewise.
	* g++.dg/warn/pr35711.C: Likewise.
	* g++.old-deja/g++.bugs/900227_01.C: Likewise.
	* g++.old-deja/g++.bugs/900404_07.C: Likewise.
	* g++.old-deja/g++.jason/overload1.C: Likewise.
	* g++.old-deja/g++.jason/rfg26.C: Likewise.
	* g++.old-deja/g++.jason/rvalue3.C: Likewise.
	* g++.old-deja/g++.jason/warning2.C: Likewise.
	* g++.old-deja/g++.mike/dyncast4.C: Likewise.
	* g++.old-deja/g++.mike/dyncast6.C: Likewise.
	* g++.old-deja/g++.mike/p11482.C: Likewise.
	* g++.old-deja/g++.mike/p2573.C: Likewise.
	* g++.old-deja/g++.mike/p2855.C: Likewise.
	* g++.old-deja/g++.mike/p7476.C: Likewise.
	* g++.old-deja/g++.mike/p8039.C: Likewise.
	* g++.old-deja/g++.other/cast2.C: Likewise.
	* g++.old-deja/g++.other/cast3.C: Likewise.
	* g++.old-deja/g++.other/dcast1.C: Likewise.
	* g++.old-deja/g++.other/dcast2.C: Likewise.

From-SVN: r279138

contrib/ChangeLog

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* unicode/from_glibc/unicode_utils.py: Support script from
	glibc (commit 464cd3) to extract character widths from Unicode data
	files.
	* unicode/from_glibc/utf8_gen.py: Likewise.
	* unicode/UnicodeData.txt: Unicode v. 12.1.0 data file.
	* unicode/EastAsianWidth.txt: Likewise.
	* unicode/PropList.txt: Likewise.
	* unicode/gen_wcwidth.py: New utility to generate
	libcpp/generated_cpp_wcwidth.h with help from the glibc support
	scripts and the Unicode data files.
	* unicode/unicode-license.txt: Added.
	* unicode/README: New explanatory file.

libcpp/ChangeLog

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* generated_cpp_wcwidth.h: New file generated by
	../contrib/unicode/gen_wcwidth.py, supports new cpp_wcwidth function.
	* charset.c (compute_next_display_width): New function to help
	implement display columns.
	(cpp_byte_column_to_display_column): Likewise.
	(cpp_display_column_to_byte_column): Likewise.
	(cpp_wcwidth): Likewise.
	* include/cpplib.h (cpp_byte_column_to_display_column): Declare.
	(cpp_display_column_to_byte_column): Declare.
	(cpp_wcwidth): Declare.
	(cpp_display_width): New function.

gcc/ChangeLog

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* input.c (location_compute_display_column): New function to help with
	multibyte awareness in diagnostics.
	(test_cpp_utf8): New self-test.
	(input_c_tests): Call the new test.
	* input.h (location_compute_display_column): Declare.
	* diagnostic-show-locus.c: Pervasive changes to add multibyte awareness
	to all classes and functions.
	(enum column_unit): New enum.
	(class exploc_with_display_col): New class.
	(class layout_point): Convert m_column member to array m_columns[2].
	(layout_range::contains_point): Add col_unit argument.
	(test_layout_range_for_single_point): Pass new argument.
	(test_layout_range_for_single_line): Likewise.
	(test_layout_range_for_multiple_lines): Likewise.
	(line_bounds::convert_to_display_cols): New function.
	(layout::get_state_at_point): Add col_unit argument.
	(make_range): Use empty filename rather than dummy filename.
	(get_line_width_without_trailing_whitespace): Rename to...
	(get_line_bytes_without_trailing_whitespace): ...this.
	(test_get_line_width_without_trailing_whitespace): Rename to...
	(test_get_line_bytes_without_trailing_whitespace): ...this.
	(class layout): m_exploc changed to exploc_with_display_col from
	plain expanded_location.
	(layout::get_linenum_width): New accessor member function.
	(layout::get_x_offset_display): Likewise.
	(layout::calculate_linenum_width): New subroutine for the constuctor.
	(layout::calculate_x_offset_display): Likewise.
	(layout::layout): Use the new subroutines. Add multibyte awareness.
	(layout::print_source_line): Add multibyte awareness.
	(layout::print_line): Likewise.
	(layout::print_annotation_line): Likewise.
	(line_label::line_label): Likewise.
	(layout::print_any_labels): Likewise.
	(layout::annotation_line_showed_range_p): Likewise.
	(get_printed_columns): Likewise.
	(class line_label): Rename m_length to m_display_width.
	(get_affected_columns): Rename to...
	(get_affected_range): ...this; add col_unit argument and multibyte
	awareness.
	(class correction): Add m_affected_bytes and m_display_cols
	members.  Rename m_len to m_byte_length for clarity.  Add multibyte
	awareness throughout.
	(correction::insertion_p): Add multibyte awareness.
	(correction::compute_display_cols): New function.
	(correction::ensure_terminated): Use new member name m_byte_length.
	(line_corrections::add_hint): Add multibyte awareness.
	(layout::print_trailing_fixits): Likewise.
	(layout::get_x_bound_for_row): Likewise.
	(test_one_liner_simple_caret_utf8): New self-test analogous to the one
	with _utf8 suffix removed, testing multibyte awareness.
	(test_one_liner_caret_and_range_utf8): Likewise.
	(test_one_liner_multiple_carets_and_ranges_utf8): Likewise.
	(test_one_liner_fixit_insert_before_utf8): Likewise.
	(test_one_liner_fixit_insert_after_utf8): Likewise.
	(test_one_liner_fixit_remove_utf8): Likewise.
	(test_one_liner_fixit_replace_utf8): Likewise.
	(test_one_liner_fixit_replace_non_equal_range_utf8): Likewise.
	(test_one_liner_fixit_replace_equal_secondary_range_utf8): Likewise.
	(test_one_liner_fixit_validation_adhoc_locations_utf8): Likewise.
	(test_one_liner_many_fixits_1_utf8): Likewise.
	(test_one_liner_many_fixits_2_utf8): Likewise.
	(test_one_liner_labels_utf8): Likewise.
	(test_diagnostic_show_locus_one_liner_utf8): Likewise.
	(test_overlapped_fixit_printing_utf8): Likewise.
	(test_overlapped_fixit_printing): Adapt for changes to
	get_affected_columns, get_printed_columns and class corrections.
	(test_overlapped_fixit_printing_2): Likewise.
	(test_linenum_sep): New constant.
	(test_left_margin): Likewise.
	(test_offset_impl): Helper function for new test.
	(test_layout_x_offset_display_utf8): New test.
	(diagnostic_show_locus_c_tests): Call new tests.

gcc/testsuite/ChangeLog:

2019-12-09  Lewis Hyatt  <lhyatt@gmail.com>

	PR preprocessor/49973
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c
	(test_show_locus): Tweak so that expected output is the same as
	before the diagnostic-show-locus.c changes.
	* gcc.dg/cpp/pr66415-1.c: Likewise.

From-SVN: r279137

	PR go/92861
    runtime: don't define CLOCK_REALTIME in os_hurd.go
    
    It's already defined in sysinfo.go.
    
    Patch by Samuel Thibault.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/210538

From-SVN: r279136

This change replaces the __forwarding_range implementation detail with
the ranges::safe_range concept and adds the ranges::enable_safe_range
variable template for opt-in in to the concept.

It also adjusts the begin/end/rbegin/rend customization point objects to
match the new rules for accessing rvalue ranges only when safe to do so.

	* include/bits/range_access.h (ranges::enable_safe_range): Define.
	(ranges::begin, ranges::end, ranges::rbegin, ranges::rend): Constrain
	to only accept types satisfying safe_range and treat argument as an
	lvalue when calling a member of performing ADL.
	(ranges::__detail::__range_impl, ranges::__detail::__forwarding_range):
	Remove.
	(ranges::range): Adjust definition.
	(ranges::safe_range): Define.
	(ranges::iterator_t, ranges::range_difference_t): Reorder definitions
	to match the synopsis in the working draft.
	(ranges::disable_sized_range): Remove duplicate definition.
	* include/experimental/string_view (ranges::enable_safe_range): Add
	partial specialization for std::experimental::basic_string_view.
	* include/std/ranges (ranges::viewable_range, ranges::subrange)
	(ranges::empty_view, ranges::iota_view): Use safe_range. Specialize
	enable_safe_range.
	(ranges::safe_iterator_t, ranges::safe_subrange_t): Define.
	* include/std/span (ranges::enable_safe_range): Add partial
	specialization for std::span.
	* include/std/string_view (ranges::enable_safe_range): Likewise for
	std::basic_string_view.
	* testsuite/std/ranges/access/begin.cc: Adjust expected results.
	* testsuite/std/ranges/access/cbegin.cc: Likewise.
	* testsuite/std/ranges/access/cdata.cc: Likewise.
	* testsuite/std/ranges/access/cend.cc: Likewise.
	* testsuite/std/ranges/access/crbegin.cc: Likewise.
	* testsuite/std/ranges/access/crend.cc: Likewise.
	* testsuite/std/ranges/access/data.cc: Likewise.
	* testsuite/std/ranges/access/end.cc: Likewise.
	* testsuite/std/ranges/access/rbegin.cc: Likewise.
	* testsuite/std/ranges/access/rend.cc: Likewise.
	* testsuite/std/ranges/empty_view.cc: Test ranges::begin and
	ranges::end instead of unqualified calls to begin and end.
	* testsuite/std/ranges/safe_range.cc: New test.
	* testsuite/std/ranges/safe_range_types.cc: New test.
	* testsuite/util/testsuite_iterators.h: Add comment about safe_range.

From-SVN: r279135

tree.c (build_array_type_1): Add SET_CANONICAL parameter and compute TYPE_CANONICAL from the element type...

	* tree.c (build_array_type_1): Add SET_CANONICAL parameter and compute
	TYPE_CANONICAL from the element type only if it is true.  Remove a few
	obsolete lines and adjust recursive call.
	(fld_process_array_type): Adjust call to build_array_type_1.
	(build_array_type): Likewise.
	(build_nonshared_array_type): Likewise.

From-SVN: r279133

The location of all OpenMP/OpenACC clauses on any given line in Fortran code
always points to the first clause on that line. Hence, the column information
is wrong for all clauses but the first one.

Use the correct location for each clause instead.

2019-12-09  Frederik Harwath  <frederik@codesourcery.com>

/gcc/fortran/
	* trans-openmp.c (gfc_trans_omp_reduction_list): Pass correct location for each
	clause to build_omp_clause.

From-SVN: r279132

2019-12-09  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/gcn/gcn-valu.md (gather<mode>_insn_1offset<exec>): Change
	%s to %o in asm output.
	(gather<mode>_insn_2offsets<exec>): Likewise.

From-SVN: r279131

From-SVN: r279130

As reported in bug 91226, the libdecnumber code used on the host to
interpret DFP values in the BID encoding fails, for _Decimal64 and
_Decimal128, to check for the case where a significand is too large
and so specified in IEEE 754 to be a non-canonical encoding of the
zero significand.  This patch adds the required handling of that case,
together with tests both using -O2 (testing this host code) and -O0
(testing libgcc code, which already worked before the patch); the
tests also cover _Decimal32, which already had the required check.

In the _Decimal128 case, where the code previously completely ignored
the case where the first four bits of the combination field are 1100,
1101 or 1110, the logic for determining the correct quantum exponent
in that case is also newly added by this patch, so tests are added for
that as well (again, libgcc already handled it correctly when the
conversion was done at runtime rather than at compile time).

Bootstrapped with no regressions for x86_64-pc-linux-gnu.

	PR middle-end/91226
libdecnumber:
	* bid/bid2dpd_dpd2bid.c (_bid_to_dpd64): Handle non-canonical
	significands.
	(_bid_to_dpd128): Likewise.  Check for case where combination
	field starts 1100, 1101 or 1110.

gcc/testsuite:
	* gcc.dg/dfp/bid-non-canonical-d128-1.c,
	gcc.dg/dfp/bid-non-canonical-d128-2.c,
	gcc.dg/dfp/bid-non-canonical-d128-3.c,
	gcc.dg/dfp/bid-non-canonical-d128-4.c,
	gcc.dg/dfp/bid-non-canonical-d32-1.c,
	gcc.dg/dfp/bid-non-canonical-d32-2.c,
	gcc.dg/dfp/bid-non-canonical-d64-1.c,
	gcc.dg/dfp/bid-non-canonical-d64-2.c: New tests.

From-SVN: r279129

When gcc for Arm is configured with --with-multilib-list=aprofile a
misplaced endif directive in the makefile was causing the arm->thumb
mapping for multilibs to be omitted from the reuse rules.  This
resulted in the default multilib being picked rather than the thumb2
opimized version.

	* config/arm/t-multilib: Use arm->thumb multilib reuse rules
	on a-profile.

From-SVN: r279128

This names the so far unnamed basic mfcr pattern "set<mode>_cc", and
it deletes all the others (only the ashift one ever was generated, and
even that one only once during a whole bootstrap+regtest, and that one
is questionable -- we don't cost that pattern correctly).


	* config/rs6000/rs6000.md (unnamed mfcr define_insn): Name this
	set<mode>_cc.
	(unnamed define_insn_and_split): Delete.
	(unnamed define_insn): Delete.
	(unnamed define_insn): Delete.
	(unnamed define_split): Delete.

From-SVN: r279127

The previous revision adds a comparison that triggers a warning.
Here we simply cast the unsigned integer to a signed one before the
comparison.

gcc/ChangeLog:

2019-12-09  Matthew Malcomson  <matthew.malcomson@arm.com>

	* regstat.c (regstat_bb_compute_calls_crossed): Add a cast to
	avoid a warning.

From-SVN: r279126

2019-12-09  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* crtstuff.c (__do_global_dtors_aux): Check if USE_EH_FRAME_REGISTRY is
	defined instead of its value.

From-SVN: r279125

In scheduling passes, notes are removed with `remove_notes` before the
scheduling is done, and added back in with `reemit_notes` once the
scheduling has been decided.

This process leaves the notes in the RTL chain with different insn uid's
than were there before.  Having different UID's (larger than the
previous ones) means that DF_INSN_INFO_GET(insn) will access outside of
the allocated array.

This has been seen in the `regstat_bb_compute_calls_crossed` function.
This patch adds an assert to the `regstat_bb_compute_calls_crossed`
function so that bad accesses here are caught instead of going
unnoticed, and then avoids the problem.

We avoid the problem by ensuring that new notes added by `reemit_notes` have an
insn record given to them.  This is done by adding a call to
`df_insn_create_insn_record` on each note added in `reemit_notes`.
`df_insn_create_insn_record` leaves this new record zeroed out, which appears
to be fine for notes (e.g. `df_bb_refs_record` already does not set
anything except the luid for notes, and notes have no dataflow information to
record).

We add the testcase that Martin found here
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92410#c2 .
This testcase fails with the "regstat.c" change, and then succeeds with the
"haifa-sched.c" change.

There is a similar problem with labels, that the `gcc_assert` catches
when running regression tests in gcc.dg/fold-eqandshift-1.c and
gcc.c-torture/compile/pr32482.c.
This is due to the `cfg_layout_finalize` call in `bb-reorder.c` emitting
new labels, and these labels not having a dataflow df_insn_info member.

We solve this by manually calling `df_recompute_luids` on each basic
block once this pass has finished.

Testing done:
  Ran regression tests on aarch64-none-linux-gnu cross compiler.
  Bootstrapped and ran tests on aarch64-none-linux-gnu native.

gcc/ChangeLog:

2019-12-09  Matthew Malcomson  <matthew.malcomson@arm.com>

	PR middle-end/92410
	* bb-reorder.c (pass_reorder_blocks::execute): Recompute
	dataflow luids once basic blocks have been reordered.
	* haifa-sched.c (reemit_notes): Create df insn record for each
	new note.
	* regstat.c (regstat_bb_compute_calls_crossed): Assert every
	insn has an insn record before trying to use it.

gcc/testsuite/ChangeLog:

2019-12-09  Matthew Malcomson  <matthew.malcomson@arm.com>

	PR middle-end/92410
	* gcc.dg/torture/pr92410.c: New test.

From-SVN: r279124

2019-12-09  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* crtstuff.c (__do_global_dtors_aux): Wrap in #if so it's only defined
	if it will have contents.

From-SVN: r279123

In particular, "subset subarrays".

	libgomp/
	PR libgomp/92511
	* testsuite/libgomp.oacc-c-c++-common/copyin-devptr-1.c: Remove
	this file...
	* testsuite/libgomp.oacc-c-c++-common/copyin-devptr-2.c: ..., and
	this file...
	* testsuite/libgomp.oacc-c-c++-common/lib-22.c: ..., and this
	file...
	* testsuite/libgomp.oacc-c-c++-common/lib-30.c: ..., and this
	file...
	* testsuite/libgomp.oacc-c-c++-common/subset-subarray-mappings-1-r-p.c:
	... with their content moved into, and extended in this new file.
	* testsuite/libgomp.oacc-c-c++-common/subset-subarray-mappings-1-d-a.c:
	New file.
	* testsuite/libgomp.oacc-c-c++-common/subset-subarray-mappings-1-d-p.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/subset-subarray-mappings-1-r-a.c:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/subset-subarray-mappings-2.c:
	Likewise.

From-SVN: r279122

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/map-data-1.c: New file.

From-SVN: r279121

... to document the status quo.

	libgomp/
	PR libgomp/92854
	* testsuite/libgomp.oacc-c-c++-common/pr92854-1.c: New file.

From-SVN: r279120

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/host_data-6.c: New file.

From-SVN: r279119

	libgomp/
	* target.c (gomp_exit_data): Use 'gomp_remove_var'.

From-SVN: r279118

        * testsuite/libgomp.fortran/use_device_addr-3.f90: Make 'stop' codes
        unique.
        * testsuite/libgomp.fortran/use_device_addr-4.f90: Ditto.
        * testsuite/libgomp.fortran/use_device_ptr-optional-2.f90: Ditto.
        * testsuite/libgomp.oacc-fortran/declare-5.f90: Ditto.
        * testsuite/libgomp.oacc-fortran/optional-data-copyin-by-value.f90:
        Ditto.
        * testsuite/libgomp.oacc-fortran/optional-firstprivate.f90: Ditto.
        * testsuite/libgomp.oacc-fortran/optional-update-host.f90: Ditto.

From-SVN: r279117

x_ix86_isa_flags2.

2019-12-09  Hongtao Liu  <hongtao.liu@intel.com>

    * gcc/common/config/i386/i386-common.c
    (OPTION_MASK_ISA_AVX5124FMAPS_SET): Rename to
    OPTION_MASK_ISA2_AVX5124FMAPS_SET.
    (OPTION_MASK_ISA_AVX5124VNNIW_SET, OPTION_MASK_ISA_AVX512BF16_SET,
    OPTION_MASK_ISA_AVX512VP2INTERSECT_SET,
    OPTION_MASK_ISA_PCONFIG_SET, OPTION_MASK_ISA_WBNOINVD_SET,
    OPTION_MASK_ISA_SGX_SET, OPTION_MASK_ISA_CX16_SET,
    OPTION_MASK_ISA_MOVBE_SET, OPTION_MASK_ISA_PTWRITE_SET,
    OPTION_MASK_ISA_MWAITX_SET, OPTION_MASK_ISA_CLZERO_SET,
    OPTION_MASK_ISA_RDPID_SET, OPTION_MASK_ISA_VAES_SET,
    OPTION_MASK_ISA_MOVDIR64B_SET, OPTION_MASK_ISA_WAITPKG_SET,
    OPTION_MASK_ISA_CLDEMOTE_SET, OPTION_MASK_ISA_ENQCMD_SET,
    OPTION_MASK_ISA_AVX5124FMAPS_UNSET,
    OPTION_MASK_ISA_AVX5124VNNIW_UNSET,
    OPTION_MASK_ISA_AVX512BF16_UNSET,
    OPTION_MASK_ISA_AVX512VP2INTERSECT_UNSET,
    OPTION_MASK_ISA_PCONFIG_UNSET, OPTION_MASK_ISA_WBNOINVD_UNSET,
    OPTION_MASK_ISA_SGX_UNSET, OPTION_MASK_ISA_CX16_UNSET,
    OPTION_MASK_ISA_MOVBE_UNSET, OPTION_MASK_ISA_PTWRITE_UNSET,
    OPTION_MASK_ISA_MWAITX_UNSET, OPTION_MASK_ISA_CLZERO_UNSET,
    OPTION_MASK_ISA_RDPID_UNSET, OPTION_MASK_ISA_VAES_UNSET,
    OPTION_MASK_ISA_MOVDIR64B_UNSET, OPTION_MASK_ISA_WAITPKG_UNSET,
    OPTION_MASK_ISA_CLDEMOTE_UNSET, OPTION_MASK_ISA_ENQCMD_UNSET,
    OPTION_MASK_ISA_AVX5124FMAPS, OPTION_MASK_ISA_AVX5124VNNIW,
    OPTION_MASK_ISA_AVX512BF16, OPTION_MASK_ISA_AVX512VP2INTERSECT,
    OPTION_MASK_ISA_PCONFIG, OPTION_MASK_ISA_WBNOINVD,
    OPTION_MASK_ISA_SGX, OPTION_MASK_ISA_CX16, OPTION_MASK_ISA_MOVBE,
    OPTION_MASK_ISA_PTWRITE, OPTION_MASK_ISA_MWAITX,
    OPTION_MASK_ISA_CLZERO, OPTION_MASK_ISA_RDPID,
    OPTION_MASK_ISA_VAES, OPTION_MASK_ISA_MOVDIR64B,
    OPTION_MASK_ISA_WAITPKG, OPTION_MASK_ISA_CLDEMOTE,
    OPTION_MASK_ISA_ENQCMD): Ditto.
    * gcc/config/i386/i386-builtin.def
    (OPTION_MASK_ISA_AVX5124FMAPS, OPTION_MASK_ISA_AVX5124VNNIW,
    OPTION_MASK_ISA_AVX512BF16, OPTION_MASK_ISA_AVX512VP2INTERSECT,
    OPTION_MASK_ISA_WBNOINVD, OPTION_MASK_ISA_PTWRITE,
    OPTION_MASK_ISA_RDPID, OPTION_MASK_ISA_VAES,
    OPTION_MASK_ISA_MOVDIR64B, OPTION_MASK_ISA_ENQCMD): Ditto.
    * gcc/config/i386/i386-builtins.c (OPTION_MASK_ISA_MWAITX,
    OPTION_MASK_ISA_CLZERO, OPTION_MASK_ISA_WAITPKG,
    OPTION_MASK_ISA_CLDEMOTE, OPTION_MASK_ISA_WBNOINVD): Ditto.
    * gcc/config/i386/i386-c.c
    (OPTION_MASK_ISA_AVX5124FMAPS, OPTION_MASK_ISA_AVX5124VNNIW,
    OPTION_MASK_ISA_AVX512BF16, OPTION_MASK_ISA_AVX512VP2INTERSECT,
    OPTION_MASK_ISA_PCONFIG, OPTION_MASK_ISA_WBNOINVD,
    OPTION_MASK_ISA_SGX, OPTION_MASK_ISA_CX16, OPTION_MASK_ISA_MOVBE,
    OPTION_MASK_ISA_PTWRITE, OPTION_MASK_ISA_MWAITX,
    OPTION_MASK_ISA_CLZERO, OPTION_MASK_ISA_RDPID,
    OPTION_MASK_ISA_VAES, OPTION_MASK_ISA_MOVDIR64B,
    OPTION_MASK_ISA_WAITPKG, OPTION_MASK_ISA_CLDEMOTE,
    OPTION_MASK_ISA_ENQCMD): Ditto.
    * gcc/config/i386/i386-option.c: Ditto
    * gcc/config/i386/i386.opt: Ditto..
    * gcc/config/i386/i386.h: (TARGET_ISA_AVX5124FMAPS,
    TARGET_ISA_AVX5124VNNIW,  TARGET_ISA_AVX512BF16,
    TARGET_ISA_AVX512VP2INTERSECT, TARGET_ISA_PCONFIG,
    TARGET_ISA_WBNOINVD, TARGET_ISA_SGX, TARGET_ISA_CX16,
    TARGET_ISA_MOVBE, TARGET_ISA_PTWRITE, TARGET_ISA_MWAITX,
    TARGET_ISA_CLZERO, TARGET_ISA_RDPID, TARGET_ISA_VAES,
    TARGET_ISA_MOVDIR64B, TARGET_ISA_WAITPKG, TARGET_ISA_CLDEMOTE)
    TARGET_ISA_ENQCMD): Ditto.

From-SVN: r279116