gcc/c-family/ChangeLog:
	* c-common.c: Include "substring-locations.h".
	(get_cpp_ttype_from_string_type): New function.
	(g_string_concat_db): New global.
	(substring_loc::get_range): New method.
	* c-common.h (g_string_concat_db): New declaration.
	(class substring_loc): New class.
	* c-lex.c (lex_string): When concatenating strings, capture the
	locations of all tokens using a new obstack, and record the
	concatenation locations within g_string_concat_db.
	* c-opts.c (c_common_init_options): Construct g_string_concat_db
	on the ggc-heap.

gcc/ChangeLog:
	* input.c (string_concat::string_concat): New constructor.
	(string_concat_db::string_concat_db): New constructor.
	(string_concat_db::record_string_concatenation): New method.
	(string_concat_db::get_string_concatenation): New method.
	(string_concat_db::get_key_loc): New method.
	(class auto_cpp_string_vec): New class.
	(get_substring_ranges_for_loc): New function.
	(get_source_range_for_substring): New function.
	(get_num_source_ranges_for_substring): New function.
	(class selftest::lexer_test_options): New class.
	(struct selftest::lexer_test): New struct.
	(class selftest::ebcdic_execution_charset): New class.
	(selftest::ebcdic_execution_charset::s_singleton): New variable.
	(selftest::lexer_test::lexer_test): New constructor.
	(selftest::lexer_test::~lexer_test): New destructor.
	(selftest::lexer_test::get_token): New method.
	(selftest::assert_char_at_range): New function.
	(ASSERT_CHAR_AT_RANGE): New macro.
	(selftest::assert_num_substring_ranges): New function.
	(ASSERT_NUM_SUBSTRING_RANGES): New macro.
	(selftest::assert_has_no_substring_ranges): New function.
	(ASSERT_HAS_NO_SUBSTRING_RANGES): New macro.
	(selftest::test_lexer_string_locations_simple): New function.
	(selftest::test_lexer_string_locations_ebcdic): New function.
	(selftest::test_lexer_string_locations_hex): New function.
	(selftest::test_lexer_string_locations_oct): New function.
	(selftest::test_lexer_string_locations_letter_escape_1): New function.
	(selftest::test_lexer_string_locations_letter_escape_2): New function.
	(selftest::test_lexer_string_locations_ucn4): New function.
	(selftest::test_lexer_string_locations_ucn8): New function.
	(selftest::uint32_from_big_endian): New function.
	(selftest::test_lexer_string_locations_wide_string): New function.
	(selftest::uint16_from_big_endian): New function.
	(selftest::test_lexer_string_locations_string16): New function.
	(selftest::test_lexer_string_locations_string32): New function.
	(selftest::test_lexer_string_locations_u8): New function.
	(selftest::test_lexer_string_locations_utf8_source): New function.
	(selftest::test_lexer_string_locations_concatenation_1): New
	function.
	(selftest::test_lexer_string_locations_concatenation_2): New
	function.
	(selftest::test_lexer_string_locations_concatenation_3): New
	function.
	(selftest::test_lexer_string_locations_macro): New function.
	(selftest::test_lexer_string_locations_stringified_macro_argument):
	New function.
	(selftest::test_lexer_string_locations_non_string): New function.
	(selftest::test_lexer_string_locations_long_line): New function.
	(selftest::test_lexer_char_constants): New function.
	(selftest::input_c_tests): Call the new test functions once per
	case within the line_table test matrix.
	* input.h (struct string_concat): New struct.
	(struct location_hash): New struct.
	(class string_concat_db): New class.
	* substring-locations.h: New header.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/diagnostic-test-string-literals-1.c: New file.
	* gcc.dg/plugin/diagnostic-test-string-literals-2.c: New file.
	* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c: New file.
	* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above new files.

libcpp/ChangeLog:
	* charset.c (cpp_substring_ranges::cpp_substring_ranges): New
	constructor.
	(cpp_substring_ranges::~cpp_substring_ranges): New destructor.
	(cpp_substring_ranges::add_range): New method.
	(cpp_substring_ranges::add_n_ranges): New method.
	(_cpp_valid_ucn): Add "char_range" and "loc_reader" params; if
	they are non-NULL, read position information from *loc_reader
	and update char_range->m_finish accordingly.
	(convert_ucn): Add "char_range", "loc_reader", and "ranges"
	params.  If loc_reader is non-NULL, read location information from
	it, and update *ranges accordingly, using char_range.
	Conditionalize the conversion into tbuf on tbuf being non-NULL.
	(convert_hex): Likewise, conditionalizing the call to
	emit_numeric_escape on tbuf.
	(convert_oct): Likewise.
	(convert_escape): Add params "loc_reader" and "ranges".  If
	loc_reader is non-NULL, read location information from it, and
	update *ranges accordingly.  Conditionalize the conversion into
	tbuf on tbuf being non-NULL.
	(cpp_interpret_string): Rename to...
	(cpp_interpret_string_1): ...this, adding params "loc_readers" and
	"out".  Use "to" to conditionalize the initialization and usage of
	"tbuf", such as running the converter.  If "loc_readers" is
	non-NULL, use the instances within it, reading location
	information from them, and passing them to convert_escape; likewise
	write to "out" if loc_readers is non-NULL.  Check for leading
	quote and issue an error if it is not present.  Update boundary
	check from "== limit" to ">= limit" to protect against erroneous
	location values to calls that are not parsing string literals.
	(cpp_interpret_string): Reimplement in terms to
	cpp_interpret_string_1.
	(noop_error_cb): New function.
	(cpp_interpret_string_ranges): New function.
	(cpp_string_location_reader::cpp_string_location_reader): New
	constructor.
	(cpp_string_location_reader::get_next): New method.
	* include/cpplib.h (class cpp_string_location_reader): New class.
	(class cpp_substring_ranges): New class.
	(cpp_interpret_string_ranges): New prototype.
	* internal.h (_cpp_valid_ucn): Add params "char_range" and
	"loc_reader".
	* lex.c (forms_identifier_p): Pass NULL for new params to
	_cpp_valid_ucn.

From-SVN: r239175

Fix PR tree-optimization/72810

gcc/ChangeLog:

	PR tree-optimization/72810
	* tree-vrp.c (simplify_switch_using_ranges): Avoid changing
	the type of the case labels when truncating.

gcc/testsuite/ChangeLog:

	PR tree-optimization/72810
	* gcc.dg/tree-ssa/vrp110.c: New test.

From-SVN: r239174

Fix PR Target/72819.

gcc/

	PR Target/72819
	* config/aarch64/aarch64.h (aarch64_fp16_type_node): Declare.
	(aarch64_fp16_ptr_type_node): Likewise.
	* config/aarch64/aarch64-simd-builtins.c
	(aarch64_fp16_ptr_type_node): Define.
	(aarch64_init_fp16_types): New, refactored out of...
	(aarch64_init_builtins): ...here, update to call
	aarch64_init_fp16_types.
	* config/aarch64/aarch64.c (aarch64_gimplify_va_arg_expr): Handle
	HFmode.
	(aapcs_vfp_sub_candidate): Likewise.

gcc/testsuite/

	PR Target/72819
	* gcc.target/aarch64/aapcs64/abitest-common.h: Define half-precision
	registers.
	* gcc.target/aarch64/aapcs64/abitest.S (dumpregs): Add assembly for
	saving the half-precision registers.
	* gcc.target/aarch64/aapcs64/func-ret-1.c: Test that an __fp16
	value is returned in h0.
	* gcc.target/aarch64/aapcs64/test_2.c: Check that __FP16 arguments
	are passed in FP/SIMD registers.
	* gcc.target/aarch64/aapcs64/test_27.c: New, test that __fp16 HFA
	passing works corrcetly.
	* gcc.target/aarch64/aapcs64/type-def.h (hfa_f16x1_t): New.
	(hfa_f16x2_t): Likewise.
	(hfa_f16x3_t): Likewise.
	* gcc.target/aarch64/aapcs64/va_arg-1.c: Check that __fp16 values
	are promoted to double and passed in a double register.
	* gcc.target/aarch64/aapcs64/va_arg-2.c: Check that __fp16 values
	are promoted to double and stacked.
	* gcc.target/aarch64/aapcs64/va_arg-4.c: Check stacking of HFA of
	__fp16 data types.
	* gcc.target/aarch64/aapcs64/va_arg-5.c: Likewise.
	* gcc.target/aarch64/aapcs64/va_arg-16.c: New, check HFAs of
	__fp16 first get passed in FP/SIMD registers, then stacked.

From-SVN: r239173

	* doc/xml/manual/status_cxx2017.xml: Correct shared_from_this status.
	* doc/html/manual/status.html: Regenerate.

From-SVN: r239171

	* include/std/chrono (floor, ceil, round, abs): New for C++17.
	* testsuite/20_util/duration_cast/rounding.cc: New test.
	* testsuite/20_util/time_point_cast/rounding.cc: New test.
	* doc/xml/manual/status_cxx2017.xml: Update status table.
	* doc/html/manual/status.html: Regenerate.
	* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust
	dg-error lineno.
	* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
	* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
	* testsuite/20_util/duration/literals/range.cc: Likewise.

From-SVN: r239170

	    Joshua Cranmer  <Pidgeot18@gmail.com>

	* gcov.c (line_t::has_block): New function.
	(enum loop_type): New enum.
	(handle_cycle): New function.
	(unblock): Likewise.
	(circuit): Likewise.
	(get_cycles_count): Likewise.
	(accumulate_line_counts): Use new loop detection algorithm.

From-SVN: r239169

	* gcov.c (output_intermediate_file): Rename
	function_info::line_next to next_file_fn.
	(process_file): Likewise.
	(read_graph_file): Likewise.
	(accumulate_line_counts): Likewise.
	(output_lines): Likewise.

From-SVN: r239168

	PR c++/68724
	* pt.c (unify): TRAIT_EXPR is an expr.

	PR c++/68724
	* g++.dg/cpp0x/pr68724.C: New.

From-SVN: r239167

	* include/std/functional (__callable_functor): Remove.
	(_Function_handler::_M_invoke): Use __invoke instead of
	__callable_functor or mem_fn.
	(function::_Callable): Use lvalue in result_of expression.
	(function): Remove TODO comments about allocators.
	* testsuite/20_util/function/cons/refqual.cc: New test.

From-SVN: r239166

2016-08-05  Richard Biener  <rguenther@suse.de>

	* gcc.dg/tree-ssa/ivopt_5.c: Make robust against edge swapping.

From-SVN: r239165

tree-ssa-threadupdate.c (thread_block_1): Remove unnecessary restriction on threading to a loop header.

2016-08-05  Richard Biener  <rguenther@suse.de>

	* tree-ssa-threadupdate.c (thread_block_1): Remove unnecessary
	restriction on threading to a loop header.

From-SVN: r239164

2016-08-05  Richard Biener  <rguenther@suse.de>

	* tree-cfgcleanup.c (tree_forwarder_block_p): Use bb_loop_header_p.
	* cfghooks.c (force_nonfallthru): If we ended up splitting a latch
	adjust loop info accordingly.

From-SVN: r239163

tree-vrp.c (extract_range_basic): Check cfun->after_inlining before folding call to __builtin_constant_p with...

gcc/ChangeLog:

2016-08-05  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* tree-vrp.c (extract_range_basic): Check cfun->after_inlining
	before folding call to __builtin_constant_p with parameters to false.

From-SVN: r239162

	* config/rs6000/rs6000.c (rs6000_preferred_reload_class): Delete
	code accidentally committed 2016-05-02 providing class when given
	NO_REGS.

From-SVN: r239161

From-SVN: r239160

gcc/ChangeLog:

	* tree-vrp.c (simplify_switch_using_ranges): Try to truncate
	the case label ranges that partially overlap with OP's value
	range.

gcc/testsuite/ChangeLog:

	* gcc.dg/tree-ssa/vrp107.c: New test.
	* gcc.dg/tree-ssa/vrp108.c: New test.
	* gcc.dg/tree-ssa/vrp109.c: New test.

From-SVN: r239157

	PR target/72805
	* config/i386/avx512fintrin.h (_mm512_cmp_epi32_mask) [!__OPTIMIZE__]:
	Cast builtin function result to __mmask16 instead of __mmask8.
	(_mm512_cmp_epu32_mask) [!__OPTIMIZE__]: Ditto.
	(_mm512_mask_cmp_epi32_mask) [!__OPTIMIZE__]: Ditto.
	(_mm512_mask_cmp_epu32_mask) [!__OPTIMIZE__]: Ditto.

From-SVN: r239152

gcc/ChangeLog:
	* selftest.h (ASSERT_TRUE): Reimplement in terms of...
	(ASSERT_TRUE_AT): New macro.
	(ASSERT_FALSE): Reimplement in terms of...
	(ASSERT_FALSE_AT): New macro.
	(ASSERT_STREQ_AT): Fix typo in comment.

From-SVN: r239151

2016-08-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

testsuite/
	* gcc.dg/pr70920-4.c: Move dg-require-effective-target before
	dg-options.

From-SVN: r239150

2016-08-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

testsuite/
	* gcc.dg/tree-ssa/pr71078-1.c: Remove double and long double
	test-cases.
	* gcc.dg/tree-ssa/pr71078-1-double.c: New test-case.
	* gcc.dg/tree-ssa/pr71078-1-long-double.c: Likewise.
	* gcc.dg/tree-ssa/pr71078-2.c: Remove double and long double
	test-cases.
	* gcc.dg/tree-ssa/pr71078-2-double.c: New test-case.
	* gcc.dg/tree-ssa/pr71078-2-long-double.c: Likewise.
	* gcc.dg/tree-ssa/pr71078-3.c: Add require-effective-check for
	large_double.

From-SVN: r239149

re PR c++/72800 (ICE on invalid C++14 code with initialized lambda capture: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in add_capture, at cp/lambda.c:505)

/cp
2016-08-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/72800
	* lambda.c (add_capture): Check lambda_capture_field_type return
	value for error_mark_node.

/testsuite
2016-08-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/72800
	* g++.dg/cpp1y/lambda-ice1.C: New.

From-SVN: r239148

gcc/cp/ChangeLog:

	PR c++/72759
	* pt.c (tsubst_qualified_id): Return error_mark_node if
	template_args is error_mark_node.

gcc/testsuite/ChangeLog:

	PR c++/72759
	* g++.dg/cpp1y/pr72759.C: New test.

From-SVN: r239147

gcc/ChangeLog:

	* gimple.c (preprocess_case_label_vec_for_gimple): When the case
	labels are exhaustive, designate the label with the widest
	range to be the default label.

gcc/testsuite/ChangeLog:

	* gcc.dg/switch-10.c: New test.

From-SVN: r239146

	* doc/xml/manual/status_cxx2017.xml: Update status table.
	* include/std/functional (__inv_unwrap): Move to <type_traits>.
	(__invoke_impl): Remove exception specifications.
	(__invoke, invoke): Add exception specifications using
	__is_nothrow_callable.
	* include/std/type_traits (__inv_unwrap): Move from <functional>.
	(__is_callable_impl, __call_is_nt, __call_is_nothrow): New helpers.
	(__is_callable, __is_nothrow_callable): New traits.
	(is_callable, is_callable_v): New C++17 traits.
	(is_nothrow_callable, is_nothrow_callable_v): Likewise.
	* testsuite/20_util/is_callable/requirements/
	explicit_instantiation.cc: New test.
	* testsuite/20_util/is_callable/requirements/
	explicit_instantiation_ext.cc: New test.
	* testsuite/20_util/is_callable/requirements/typedefs.cc: New test.
	* testsuite/20_util/is_callable/requirements/typedefs_ext.cc: New
	test.
	* testsuite/20_util/is_callable/value.cc: New test.
	* testsuite/20_util/is_callable/value_ext.cc: New test.
	* testsuite/20_util/is_nothrow_callable/requirements/
	explicit_instantiation.cc: New test.
	* testsuite/20_util/is_nothrow_callable/requirements/
	explicit_instantiation_ext.cc: New test.
	* testsuite/20_util/is_nothrow_callable/requirements/typedefs.cc:
	New test.
	* testsuite/20_util/is_nothrow_callable/requirements/typedefs_ext.cc:
	New test.
	* testsuite/20_util/is_nothrow_callable/value.cc: New test.
	* testsuite/20_util/is_nothrow_callable/value_ext.cc: New test.

From-SVN: r239145

    
    Reviewed-on: https://go-review.googlesource.com/25490

From-SVN: r239144

2016-08-04  Marcel Böhme  <boehme.marcel@gmail.com>

	PR c++/71696
	* cplus-dem.c: Prevent infinite recursion when there is a cycle
	in the referencing of remembered mangled types.
	(work_stuff): New stack to keep track of the remembered mangled
	types that are currently being processed.
	(push_processed_type): New method to push currently processed
	remembered type onto the stack.
	(pop_processed_type): New method to pop currently processed
	remembered type from the stack.
	(work_stuff_copy_to_from): Copy values of new variables.
	(delete_non_B_K_work_stuff): Free stack memory.
	(demangle_args): Push/Pop currently processed remembered type.
	(do_type): Do not demangle a cyclic reference and push/pop
	referenced remembered type.

From-SVN: r239143

	* gcc.c-torture/execute/pr70903.c: Remove duplicate body.

From-SVN: r239142

    
    When using gccgo on systems without full support for split stacks a
    recursive template can overrun the available stack space.  Reduce the
    limit from 100000 to 10000 to make this less likely.  It's still high
    enough that real uses will work.
    
    Reviewed-on: https://go-review.googlesource.com/25467

From-SVN: r239141

    
    Patch from Rainer Orth.
    
    Reviewed-on: https://go-review.googlesource.com/25466

From-SVN: r239140

	* pt.c (tsubst_pack_expansion): Pull a single pack expansion out
	of the TREE_VEC.

From-SVN: r239138

	* cp-tree.h (TYPE_UNNAMED_P): Rename from TYPE_ANONYMOUS_P.
	(TYPE_WAS_UNNAMED): Rename from TYPE_WAS_ANONYMOUS.
	* class.c, decl.c, decl2.c, error.c, lambda.c, mangle.c,
	name-lookup.c, parser.c, pt.c, semantics.c, tree.c: Adjust.

From-SVN: r239137

	* typeck.c (finish_class_member_access_expr): Avoid stripping
	SCOPE_REF to dependent base.

From-SVN: r239136

2016-08-04  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx_vector_cost): New variable.
        (thunderx_tunings): Use thunderx_vector_cost instead of
        generic_vector_cost.

From-SVN: r239135

	* gcov.c (main): Fix GNU coding style.
	(output_intermediate_file): Likewise.
	(process_file): Likewise.
	(generate_results): Likewise.
	(release_structures): Likewise.
	(create_file_names): Likewise.
	(find_source): Likewise.
	(read_graph_file): Likewise.
	(find_exception_blocks): Likewise.
	(canonicalize_name): Likewise.
	(make_gcov_file_name): Likewise.
	(mangle_name): Likewise.
	(accumulate_line_counts): Likewise.
	(output_branch_count): Likewise.
	(read_line): Likewise.

From-SVN: r239134

	gcc/c/
	* c-parser.c (struct oacc_routine_data): Add error_seen and
	fndecl_seen members.
	(c_finish_oacc_routine): Use these.
	(c_parser_declaration_or_fndef): Adjust.
	(c_parser_oacc_routine): Likewise.  Support more C language
	constructs, and improve diagnostics.  Move pragma context
	checking...
	(c_parser_pragma): ... here.
	gcc/cp/
	* parser.c (cp_ensure_no_oacc_routine): Improve diagnostics.
	(cp_parser_late_parsing_cilk_simd_fn_info): Fix diagnostics.
	(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
	Simplify code, and improve diagnostics.
	(cp_parser_oacc_routine): Likewise.  Move pragma context
	checking...
	(cp_parser_pragma): ... here.
	gcc/testsuite/
	* c-c++-common/goacc/routine-5.c: Update.

From-SVN: r239128

	gcc/c/
	* c-parser.c (struct oacc_routine_data): New.
	(c_parser_declaration_or_fndef, c_parser_oacc_routine): Use it.
	Simplify code.
	(c_finish_oacc_routine): Likewise.  Don't attach clauses to "omp
	declare target" attribute.
	gcc/cp/
	* parser.h (struct cp_omp_declare_simd_data): New.
	(struct cp_parser): Use it for oacc_routine member.
	* parser.c (cp_ensure_no_oacc_routine, cp_parser_oacc_routine)
	(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
	Use it.  Simplify code.
	(cp_parser_new): Initialize all members pointing to special
	parsing data structures.
	(cp_parser_cilk_simd_fn_vector_attrs): Initialize
	parser->cilk_simd_fn_info->clauses.
	(cp_parser_omp_declare_simd): Initialize
	parser->omp_declare_simd->clauses.
	(cp_parser_late_parsing_omp_declare_simd): Simplify code.

From-SVN: r239127

	libgomp/
	* testsuite/libgomp.oacc-c++/routine-1-auto.C: New file.
	* testsuite/libgomp.oacc-c++/routine-1-template-auto.C: Likewise.
	* testsuite/libgomp.oacc-c++/routine-1-template-trailing-return-type.C:
	Likewise.
	* testsuite/libgomp.oacc-c++/routine-1-template.C: Likewise.
	* testsuite/libgomp.oacc-c++/routine-1-trailing-return-type.C:
	Likewise.
	* testsuite/libgomp.oacc-c-c++-common/routine-1.c: Adjust.

From-SVN: r239126

	libgomp/
	* testsuite/libgomp.oacc-c-c++-common/crash-1.c: Make it a "link"
	test, and don't hardcode -O0.

From-SVN: r239125

	* doc/xml/manual/status_cxx2017.xml: Update C++17 status table.
	* doc/html/manual/status.html: Regenerate.

From-SVN: r239124

        PR rtl-optimization/71779
        * emit-rtl.c (set_reg_attrs_from_value): Only propagate REG_POINTER,
        if the value was sign-extended according to POINTERS_EXTEND_UNSIGNED
        or if it was truncated.

From-SVN: r239123