gcc/c/ChangeLog:
	PR c/70281
	* c-parser.c (c_parser_postfix_expression): Set the source range
	for uses of "__builtin_types_compatible_p".

gcc/testsuite/ChangeLog:
	PR c/70281
	* gcc.dg/plugin/diagnostic-test-expressions-1.c
	(test_builtin_types_compatible_p): New test function.
	* gcc.dg/pr70281.c: New test case.

From-SVN: r234340

re PR middle-end/70280 (-fcompare-debug failure (length) with --param=integer-share-limit=4016 -mavx512bw)

	PR c/70280
	* c-typeck.c (composite_type): Don't count void_list_node
	into len, if the list is terminated by void_list_node, start
	with void_list_node instead of NULL for newargs.  Stop
	at void_list_node.

From-SVN: r234312

Also rename the Fortran OMP_MAP_FORCE_DEALLOC to OMP_MAP_DELETE.

	include/
	* gomp-constants.h (enum gomp_map_kind): Rename
	GOMP_MAP_FORCE_DEALLOC to GOMP_MAP_DELETE.  Adjust all users.

	gcc/fortran/
	* gfortran.h (enum gfc_omp_map_op): Rename OMP_MAP_FORCE_DEALLOC
	to OMP_MAP_DELETE.  Adjust all users.

From-SVN: r234294

re PR c/70093 (Instancing function with VM return type cases internal compiler error in 'assign_stack_temp_for_type'.)

	PR c/70093
	* c-typeck.c (build_function_call_vec): Create a TARGET_EXPR for
	nested functions returning VM types.

	* cgraphunit.c (cgraph_node::expand_thunk): Also build call to the
	function being thunked if the result type doesn't have fixed size.
	* gimplify.c (gimplify_modify_expr): Also set LHS if the result type
	doesn't have fixed size.

	* gcc.dg/nested-func-10.c: New test.
	* gcc.dg/nested-func-9.c: New test.

From-SVN: r234259

	gcc/c/
	* c-parser.c (c_parser_oacc_loop): Update cclauses and clauses
	when calling c_finish_omp_clauses.

	gcc/cp/
	* parser.c (cp_parser_oacc_loop): Update cclauses and clauses
	when calling c_finish_omp_clauses.

	gcc/testsuite/
	* c-c++-common/goacc/combined-directives-2.c: New test.

From-SVN: r234089

	PR c/69824
	* c-decl.c (get_parm_info): Don't queue implicit function declarations
	for later.

	PR c/69824
	* gcc.dg/pr69824.c: New test.

From-SVN: r234000

re PR c/69798 (ICE on invalid code on x86_64-linux-gnu in c_parser_braced_init, at c/c-parser.c:4338)

	PR c/69798
	* c-parser.c (c_parser_postfix_expression): Call
	c_parser_cast_expression rather than c_parser_postfix_expression.

	* gcc.dg/cilk-plus/pr69798-1.c: New test.
	* gcc.dg/cilk-plus/pr69798-2.c: New test.

From-SVN: r233965

	PR c/69796
	PR c/69974
	* c-parser.c (c_parser_translation_unit): Don't change TREE_TYPE
	of incomplete decls to error_mark_node.

	* gcc.dg/pr69796.c: New test.
	* gcc.dg/pr69974.c: New test.

From-SVN: r233861

re PR c/69819 (ICE on invalid code on x86_64-linux-gnu in tree check: expected function_type or method_type, have array_type in function_args_iter_init, at tree.h:4536)

	PR c/69819
	* c-decl.c (finish_decl): Don't update the copy of the type of a
	different decl type.

	* gcc.dg/pr69819.c: New test.

From-SVN: r233683

	PR objc/69844
	* c-parser.c (c_parser_for_statement): Properly handle ObjC classes
	in id_kind reclassification.

	* objc.dg/pr69844.m: New test.

From-SVN: r233643

re PR c/69835 (-Wnonnull diagnoses parameter comparisons with NULL even when those could have changed)

	PR c/69835
	* common.opt (Wnonnull-compare): New warning.
	* doc/invoke.texi (-Wnonnull): Remove text about comparison
	of arguments against NULL.
	(-Wnonnull-compare): Document.
	* Makefile.in (OBJS): Add gimple-ssa-nonnull-compare.o.
	* tree-pass.h (make_pass_warn_nonnull_compare): Declare.
	* passes.def (pass_warn_nonnull_compare): Add.
	* gimple-ssa-nonnull-compare.c: New file.
c-family/
	* c.opt (Wnonnull-compare): Enable for -Wall.
c/
	* c-typeck.c (build_binary_op): Revert 2015-09-09 change.
cp/
	* typeck.c (cp_build_binary_op): Revert 2015-09-09 change.
testsuite/
	* c-c++-common/nonnull-1.c: Use -Wnonnull-compare instead of
	-Wnonnull in dg-options.
	* c-c++-common/nonnull-2.c: New test.

From-SVN: r233472

	PR c/64748

	gcc/c/
	* c-parser.c (c_parser_oacc_data_clause_deviceptr): Allow parms.

	gcc/cp/
	* parser.c (cp_parser_oacc_data_clause_deviceptr): Remove checking.
	* semantics.c (finish_omp_clauses): Add deviceptr checking.

	gcc/testsuite/
	* c-c++-common/goacc/deviceptr-1.c: Add tests.
	* g++.dg/goacc/deviceptr-1.c: New file.

From-SVN: r233458

	* c-decl.c (build_null_declspecs): Zero the entire struct.

From-SVN: r233367

c/
	PR c/69522
	* c-parser.c (c_parser_braced_init): New arg outer_obstack.  All
	callers changed.  If nested_p is true, use it to call
	finish_implicit_inits.
	* c-tree.h (finish_implicit_inits): Declare.
	* c-typeck.c (finish_implicit_inits): New function.  Move code
	from ...
	(push_init_level): ... here.
	(set_designator, process_init_element): Call finish_implicit_inits.

testsuite/
	PR c/69522
	gcc.dg/pr69522.c: New test.

From-SVN: r233366

	PR c/69768
	* c-typeck.c (parser_build_binary_op): Strip nops from integer_zerop
	arguments for -Waddress warning.

	* typeck.c (cp_build_binary_op): cp_fully_fold integer_zerop
	arguments for -Waddress warning.  Fix up formatting.

	* c-c++-common/Waddress-1.c: New test.

From-SVN: r233357

	PR c/69669
	* c-decl.c (finish_enum): When honoring mode attribute,
	make sure to use proper TYPE_MIN_VALUE and TYPE_MAX_VALUE.

	* c-c++-common/pr69669.c: New test.

From-SVN: r233154

	PR debug/69518
	* c-decl.c (finish_struct): Clear C_TYPE_INCOMPLETE_VARS in
	all type variants, not just TYPE_MAIN_VARIANT.

	* gcc.dg/torture/pr69518.c: New test.

From-SVN: r232998

	PR debug/66869
	* c-decl.c (c_write_global_declarations_1): Warn with
	warn_unused_function if static prototype without definition
	is not C_DECL_USED.

	* gcc.dg/pr66869.c: New test.

From-SVN: r232899

	PR c/68062
	* c-typeck.c (build_binary_op) [EQ_EXPR, GE_EXPR]: Promote operand
	to unsigned, if needed.  Add -Wsign-compare warning.

	* typeck.c (cp_build_binary_op): Promote operand to unsigned, if
	needed.  Add -Wsign-compare warning.

	* c-c++-common/vector-compare-4.c: New test.

From-SVN: r232894

re PR tree-optimization/69483 (gcc ICE on x86_64-linux-gnu with "expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p")

	PR tree-optimization/69483
	* gimple-fold.c (canonicalize_constructor_val): Return NULL
	if base has error_mark_node type.

	* c-parser.c (c_parser_translation_unit): Use FOR_EACH_VEC_ELT.

	* gcc.dg/pr69483.c: New test.
	* g++.dg/opt/pr69483.C: New test.

From-SVN: r232833

From-SVN: r232626

2016-01-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

        PR c/24293
        * c-tree.h (incomplete_record_decls): Declare.
        * c-parser.c (incomplete_record_decls): Define.
        (c_parser_translation_unit): Iterate through incomplete_record_decls and
        report error if any decl has zero size.
        * c-decl.c (finish_decl): Append static decl with incomplete struct/union
        or enum type to incomplete_record_decls.

testsuite/
        * gcc.dg/pr24293.c: New test.
        * gcc.dg/Wcxx-compat-8.c: Adjust to accept error due to
        incomplete struct type.
        * gcc.dg/declspec-1.c: Likewise.
        * gcc.dg/pr63549.c: Likewise.

From-SVN: r232622

2016-01-14  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/68773
	* c-parser.c (c_parser_oacc_declare, c_parser_omp_declare_target): Don't
	set force_output.

	* parser.c (cp_parser_oacc_declare, cp_parser_omp_declare_target): Don't
	set force_output.

	* omp-low.c (expand_omp_target): Don't set force_output.
	* varpool.c (varpool_node::get_create): Same.
	* lto-cgraph.c (input_offload_tables): Mark entries in offload_vars and
	offload_funcs with force_output.

From-SVN: r232384

	PR c/69262
	* c-decl.c (grokdeclarator): Provide more information for invalid
	array declarations.

	* gcc.dg/array-15.c: New test.

From-SVN: r232376

	PR c/66208
	* c-common.c (check_function_nonnull): Remove unnecessary declaration.
	Add new arg loc and pass it down as context.
	(check_nonnull_arg): Don't mark ctx arg as unused. Use it as a pointer
	to the location to use for the warning.
	(check_function_arguments): New arg loc.  All callers changed.  Pass
	it to check_function_nonnull.
	* c-common.h (check_function_arguments): Adjust declaration.

testsuite/
	PR c/66208
	* c-c++-common/pr66208.c: New file.

From-SVN: r232345

gcc/c/ChangeLog:
	* c-parser.c (c_parser_unary_expression): For dereferences, build
	a combined location before calling build_indirect_ref, so that
	error reports cover the full range, manually updating the c_expr
	src_range.

gcc/testsuite/ChangeLog:
	* gcc.dg/bad-dereference.c: New test case.

From-SVN: r232110

re PR sanitizer/69099 (ICE when compiling gcc.dg/atomic/c11-atomic-exec-2.c with -fsanitize=float-cast-overflow)

	PR sanitizer/69099
	* c-convert.c (convert) [INTEGER_TYPE]: Drop ARG.  Don't pass ARG to
	ubsan_instrument_float_cast.  Fold EXPR.  Use NULL_TREE instead of
	NULL.

	* convert.c (convert_to_integer_1): Adjust call to
	ubsan_instrument_float_cast.  Use NULL_TREE instead of NULL.
	* ubsan.c (ubsan_instrument_float_cast): Drop the ARG parameter.  Use
	EXPR instead of ARG.
	* ubsan.h (ubsan_instrument_float_cast): Adjust declaration.

	* gcc.dg/ubsan/float-cast-overflow-atomic.c: New test.

From-SVN: r232099

From-SVN: r232055

	PR c/68908
	* c-typeck.c (build_atomic_assign): Improve commentary.  Add
	optimization to use __atomic_fetch_* built-in if possible.

	* gcc.dg/atomic/c11-atomic-exec-6.c: New test.
	* gcc.dg/atomic/c11-atomic-exec-7.c: New test.
	* gcc.dg/atomic/stdatomic-op-5.c: New test.

From-SVN: r232052

	gcc/c/
	* c-parser.c (c_parser_oacc_clause_use_device): Merge function
	into...
	(c_parser_omp_clause_use_device_ptr): ... this function.  Adjust
	all users.
	gcc/
	* tree-core.h (enum omp_clause_code): Merge OMP_CLAUSE_USE_DEVICE
	into OMP_CLAUSE_USE_DEVICE_PTR.  Adjust all users.

From-SVN: r231926

	PR c/69002
	* c-typeck.c (build_component_ref): Warn when acessing elements of
	atomic structures or unions.

	* gcc.dg/c11-atomic-1.c: Add dg-warnings.
	* gcc.dg/c11-atomic-4.c: New test.

From-SVN: r231902

gcc/c-family/ChangeLog:
	* c-common.c (binary_op_error): Convert first param from
	location_t to rich_location * and use it when emitting an error.
	* c-common.h (binary_op_error): Convert first param from
	location_t to rich_location *.

gcc/c/ChangeLog:
	* c-typeck.c: Include "gcc-rich-location.h".
	(build_binary_op): In the two places that call binary_op_error,
	create a gcc_rich_location and populate it with the location of
	the binary op and its two operands.

gcc/cp/ChangeLog:
	* typeck.c (cp_build_binary_op): Update for change in signature
	of build_binary_op.  Use error_at to replace an implicit use
	of input_location with param "location" in "invalid operands"
	error.
	(cp_build_binary_op): Replace an error with an error_at, using
	"location", rather than implicitly using input_location.

gcc/testsuite/ChangeLog:
	* g++.dg/diagnostic/bad-binary-ops.C: New test case.
	* gcc.dg/bad-binary-ops.c: New test case.
	gcc.dg/plugin/diagnostic_plugin_show_trees.c (get_range_for_expr):
	Remove material copied from gcc-rich-location.c
	(gcc_rich_location::add_expr): Likewise.

From-SVN: r231884

gcc/c/ChangeLog:
	* c-parser.c (c_parser_statement_after_labels): When calling
	c_finish_return, Use the return expression's location if it has
	one, falling back to the location of the first token within it.
	* c-typeck.c (c_finish_return): When issuing warnings about
	the incorrect presence/absence of a return value, issue a note
	showing the declaration of the function.

gcc/testsuite/ChangeLog:
	* gcc.dg/diagnostic-range-bad-return.c: New test case.

From-SVN: r231786

gcc/c-family/ChangeLog:
	* c-common.h (conflict_marker_get_final_tok_kind): New prototype.
	* c-lex.c (conflict_marker_get_final_tok_kind): New function.

gcc/c/ChangeLog:
	* c-parser.c (struct c_parser): Expand array "tokens_buf" from 2
	to 4.
	(c_parser_peek_nth_token): New function.
	(c_parser_peek_conflict_marker): New function.
	(c_parser_error): Detect conflict markers and report them as such.

gcc/cp/ChangeLog:
	* parser.c (cp_lexer_peek_conflict_marker): New function.
	(cp_parser_error): Detect conflict markers and report them as
	such.

gcc/testsuite/ChangeLog:
	* c-c++-common/conflict-markers-1.c: New testcase.
	* c-c++-common/conflict-markers-2.c: Likewise.
	* c-c++-common/conflict-markers-3.c: Likewise.
	* c-c++-common/conflict-markers-4.c: Likewise.
	* c-c++-common/conflict-markers-5.c: Likewise.
	* c-c++-common/conflict-markers-6.c: Likewise.
	* c-c++-common/conflict-markers-7.c: Likewise.
	* c-c++-common/conflict-markers-8.c: Likewise.
	* c-c++-common/conflict-markers-9.c: Likewise.
	* c-c++-common/conflict-markers-10.c: Likewise.
	* c-c++-common/conflict-markers-11.c: Likewise.
	* g++.dg/conflict-markers-1.C: Likewise.

From-SVN: r231712

gcc/c/ChangeLog:
	* c-parser.c (c_parser_postfix_expression): Use EXPR_LOC_OR_LOC
	to preserve range information for the primary expression
	in the call to c_parser_postfix_expression_after_primary.

gcc/testsuite/ChangeLog:
	* gcc.dg/cast-function-1.c (bar): Update column numbers.
	* gcc.dg/diagnostic-range-bad-called-object.c: New test case.

From-SVN: r231709

gcc/c/ChangeLog:
	* c-parser.c (c_parser_static_assert_declaration_no_semi): Use the
	expression location, falling back on the first token location,
	rather than always using the latter.

gcc/testsuite/ChangeLog:
	* gcc.dg/diagnostic-range-static-assert.c: New test case.

From-SVN: r231704

	PR c/64637
	* c-typeck.c (c_process_expr_stmt): Use location of the expression if
	available.

	* gcc.dg/pr64637.c: New test.

From-SVN: r231700

re PR c/68907 (bogus warning: right-hand operand of comma expression has no effect on an atomic_int preincrement)

	PR c/68907
	* c-typeck.c (build_atomic_assign): Set TREE_NO_WARNING on an
	artificial decl.

	* gcc.dg/pr68907.c: New test.

From-SVN: r231656

2015-12-09  Chung-Lin Tang  <cltang@codesourcery.com>

	* c-family/c-omp.c (c_finish_oacc_wait): Remove add_stmt() call.
	* c/c-parser.c (c_parser_oacc_wait): Add add_stmt() call.
	* cp/parser.c (cp_parser_oacc_wait): Add finish_expr_stmt() call.

From-SVN: r231441

gcc/c/ChangeLog:
	* c-parser.c (c_parser_alignof_expression): Capture location of
	closing parenthesis (if any), or of end of unary expression, and
	use it to build a src_range for the expression.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/diagnostic-test-expressions-1.c (test_alignof):
	New test function.

From-SVN: r231415