PR c/86125 - missing -Wbuiltin-declaration-mismatch on a mismatched return type

[thirdparty/gcc.git] / gcc / cp / ChangeLog

2019-01-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88976
	* semantics.c (finish_omp_cancel): Diagnose more than one if
	on #pragma omp cancel with different modifiers.  Use
	maybe_convert_cond when not in template or build_x_binary_op
	otherwise.

2019-01-23  Marek Polacek  <polacek@redhat.com>

	PR c++/88757 - qualified name treated wrongly as type.
	* parser.c (cp_parser_direct_declarator): Don't treat qualified-ids
	in parameter-list as types if name lookup for declarator-id didn't
	find one or more function templates.

2019-01-23  Jakub Jelinek  <jakub@redhat.com>

	PR c/44715
	* cp-gimplify.c (genericize_cp_loop): Call begin_bc_block only
	after genericizing cond and incr expressions.

	PR c++/88984
	* cp-gimplify.c (genericize_switch_stmt): Move cond genericization
	before the begin_bc_block call.

2019-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/87893 - constexpr ctor ICE on ARM.
	PR c++/88293 - ICE with comma expression.
	* constexpr.c (initialized_type): Don't shortcut non-void type.
	Handle COMPOUND_EXPR.
	(cxx_eval_outermost_constant_expr): Return early for void type.

2019-01-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88949
	* optimize.c (cxx_copy_decl): New function.
	(clone_body): Use it instead of copy_decl_no_change.

	PR sanitizer/88901
	* typeck.c (cp_build_binary_op): Don't instrument
	SANITIZE_POINTER_COMPARE if processing_template_decl.
	(pointer_diff): Similarly for SANITIZE_POINTER_SUBTRACT.

2019-01-18  Jason Merrill  <jason@redhat.com>

	PR c++/88875 - error with explicit list constructor.
	* call.c (reference_binding): Don't modify EXPR.  Set
	need_temporary_p on the ck_user conversion for a temporary.
	(convert_like_real): Check it.

2019-01-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR c/51628
	PR c/88664
	* call.c (convert_for_arg_passing): Upate the
	warn_for_address_or_pointer_of_packed_member call.
	* typeck.c (convert_for_assignment): Likewise.

2019-01-17  Jason Merrill  <jason@redhat.com>

	PR c++/86205 - ICE with ?: of throw and template-id.
	* pt.c (resolve_nondeduced_context_or_error): Split out from...
	* typeck.c (decay_conversion): ...here.
	* call.c (build_conditional_expr_1): Use it.

	PR c++/86740, ICE with constexpr if and nested generic lambdas.
	* tree.c (cp_walk_subtrees): Handle LAMBDA_EXPR.

2019-01-17  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use typespec_loc in error messages
	about 'auto' and trailing return type.

2019-01-17  David Malcolm  <dmalcolm@redhat.com>

	PR c++/88699
	* class.c (add_method): Don't use DECL_DESTRUCTOR_P on
	USING_DECLs.

2019-01-17  Nathan Sidwell  <nathan@acm.org>

	PR c++/86610
	* semantics.c (process_outer_var_ref): Only skip dependent types
	in templates.

2019-01-17  Alexandre Oliva <aoliva@redhat.com>

	PR c++/87768
	* cp-tree.h (saved_scope): Add suppress_location_wrappers.
	* name-lookup.c (do_push_to_top_level): Save and reset it.
	(do_pop_from_top_level): Restore it.

	PR c++/86648
	* pt.c (make_template_placeholder): Use auto_identifier.
	(is_auto): Drop CLASS_PLACEHOLDER_TEMPLATE test.
	* error.c (dump_type): Handle template placeholders.
	* cxx-pretty-print.c (pp_cx_unqualified_id): Likewise.

	PR c++/88146
	* cvt.c (convert_to_void): Handle all cdtor calls as if
	returning void.

2019-01-16  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use locations[ds_storage_class] in
	error messages about ill-formed uses of mutable.

2019-01-16  Marek Polacek  <polacek@redhat.com>

	PR c++/78244 - narrowing conversion in template not detected.
	* call.c (perform_implicit_conversion_flags): Set
	IMPLICIT_CONV_EXPR_BRACED_INIT.
	* cp-tree.h (IMPLICIT_CONV_EXPR_BRACED_INIT): New.
	* pt.c (tsubst_copy_and_build): Use it.

2019-01-15  David Malcolm  <dmalcolm@redhat.com>

	PR c++/88795
	* pt.c (build_deduction_guide): Bail out if tsubst_arg_types
	fails.

2019-01-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve error location.
	* decl2.c (grokfield): Likewise.

2019-01-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Move further up the location_t loc
	declaration and use the location when building a TYPE_DECL for
	a typedef name.
	* decl2.c (grokbitfield): Use DECL_SOURCE_LOCATION in the error
	about an ill-formed bit-field as typedef.

2019-01-14  Marek Polacek  <polacek@redhat.com>

	PR c++/88830 - ICE with abstract class.
	* decl2.c (maybe_emit_vtables): Check CLASSTYPE_LAZY_DESTRUCTOR.
	Fix formatting.

	PR c++/88825 - ICE with bogus function return type deduction.
	* typeck.c (can_do_nrvo_p): Check error_mark_node.

2019-01-14  Tom Honermann  <tom@honermann.net>

	Implement P0482R5, char8_t: A type for UTF-8 characters and strings
	* cvt.c (type_promotes_to): Handle char8_t promotion.
	* decl.c (grokdeclarator): Handle invalid type specifier
	combinations involving char8_t.
	* lex.c (init_reswords): Add char8_t as a reserved word.
	* mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
	* parser.c (cp_keyword_starts_decl_specifier_p)
	(cp_parser_simple_type_specifier): Recognize char8_t as a simple
	type specifier.
	(cp_parser_string_literal): Use char8_array_type_node for the type
	of CPP_UTF8STRING.
	(cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
	headers.
	* rtti.c (emit_support_tinfos): type_info support for char8_t.
	* tree.c (char_type_p): Recognize char8_t as a character type.
	* typeck.c (string_conv_p): Handle conversions of u8 string
	literals of char8_t type.
	(check_literal_operator_args): Handle UDLs with u8 string literals
	of char8_t type.
	* typeck2.c (ordinary_char_type_p): New.
	(digest_init_r): Disallow initializing a char array with a u8 string
	literal.

2019-01-14  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/88263
	* decl2.c (get_tls_wrapper_fn): Use DECL_SOURCE_LOCATION
	as location of the TLS wrapper.

2019-01-12  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (cp_finish_decl): Improve error location.
	* decl2.c (grokfield): Likewise, improve two locations.

2019-01-11  Marek Polacek  <polacek@redhat.com>

	PR c++/88692, c++/87882 - -Wredundant-move false positive with *this.
	* typeck.c (maybe_warn_pessimizing_move): Return if ARG isn't
	ADDR_EXPR.

2019-01-11  Jason Merrill  <jason@redhat.com>

	PR c++/88312 - pack expansion of decltype.
	* pt.c (instantiation_dependent_r): A template non-type parameter
	pack is instantiation-dependent.

2019-01-11  Jason Merrill  <jason@redhat.com>

	PR c++/88613 - ICE with use of const var in lambda.
	* expr.c (mark_use): Fix location wrapper handling.
	* cp-gimplify.c (cp_fold_maybe_rvalue): Call mark_rvalue_use.

2019-01-11  Tobias Burnus  <burnus@net-b.de>

	PR C++/88114
	* decl2.c (maybe_emit_vtables): If needed, generate code for
	the destructor of an abstract class.
	(mark_used): Update comment for older function-name change.

2019-01-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve error location.
	(grokdeclarator): Likewise, improve two locations.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615

	* cp-tree.h: Mechanically replace "can not" with "cannot".
	* parser.c: Likewise.
	* pt.c: Likewise.

2019-01-08  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grok_reference_init): Improve error location.
	(grokdeclarator): Likewise, improve two locations.

2019-01-08  Marek Polacek  <polacek@redhat.com>

	PR c++/88538 - braced-init-list in template-argument-list.
	* parser.c (cp_parser_template_argument): Handle braced-init-list when
	in C++20.

	PR c++/88548 - this accepted in static member functions.
	* parser.c (cp_debug_parser): Adjust printing of
	local_variables_forbidden_p.
	(cp_parser_new): Set local_variables_forbidden_p to 0 rather than false.
	(cp_parser_primary_expression): When checking
	local_variables_forbidden_p, use THIS_FORBIDDEN or
	LOCAL_VARS_FORBIDDEN.
	(cp_parser_lambda_body): Update the type of
	local_variables_forbidden_p.  Set it to 0 rather than false.
	(cp_parser_condition): Adjust call to cp_parser_declarator.
	(cp_parser_explicit_instantiation): Likewise.
	(cp_parser_init_declarator): Likewise.
	(cp_parser_declarator): New parameter.  Use it.
	(cp_parser_direct_declarator): New parameter.  Use it to set
	local_variables_forbidden_p.  Adjust call to cp_parser_declarator.
	(cp_parser_type_id_1): Adjust call to cp_parser_declarator.
	(cp_parser_parameter_declaration): Likewise.
	(cp_parser_default_argument): Update the type of
	local_variables_forbidden_p.  Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
	rather than true.
	(cp_parser_member_declaration): Tell cp_parser_declarator if we saw
	'static' or 'friend'.
	(cp_parser_exception_declaration): Adjust call to cp_parser_declarator.
	(cp_parser_late_parsing_default_args): Update the type of
	local_variables_forbidden_p.  Set it to LOCAL_VARS_AND_THIS_FORBIDDEN
	rather than true.
	(cp_parser_cache_defarg): Adjust call to cp_parser_declarator.
	(cp_parser_objc_class_ivars): Likewise.
	(cp_parser_objc_struct_declaration): Likewise.
	(cp_parser_omp_for_loop_init): Likewise.
	* parser.h (cp_parser): Change the type of local_variables_forbidden_p
	to unsigned char.
	(LOCAL_VARS_FORBIDDEN, LOCAL_VARS_AND_THIS_FORBIDDEN, THIS_FORBIDDEN):
	Define.

2019-01-08  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve permerror location.

2019-01-08  Jonathan Wakely  <jwakely@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/88554
	* decl.c (finish_function): For -Wreturn-type don't add a return *this;
	fixit hint if current_class_ref is NULL.  Use a single if instead of
	two nested ones.

2019-01-07  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (start_decl): Improve two error_at locations.
	(expand_static_init): Likewise.

2019-01-07  Marek Polacek  <polacek@redhat.com>

	PR c++/88741 - wrong error with initializer-string.
	* decl.c (cp_complete_array_type): Strip any location wrappers.

2019-01-07  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	PR c++/88261
	PR c++/69338
	PR c++/69696
	PR c++/69697
	* cp-tree.h (LOOKUP_ALLOW_FLEXARRAY_INIT): New flag value.
	* typeck2.c (digest_init_r): Raise an error for non-static
	initialization of a flexible array member.
	(process_init_constructor, massage_init_elt,
	process_init_constructor_array, process_init_constructor_record,
	process_init_constructor_union, process_init_constructor): Add the
	flags parameter and pass it thru.
	(store_init_value): Pass LOOKUP_ALLOW_FLEXARRAY_INIT parameter to
	digest_init_flags for static decls.

2019-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/85052
	* cp-tree.h (cp_build_vec_convert): Declare.
	* parser.c (cp_parser_postfix_expression): Parse
	__builtin_convertvector.
	* constexpr.c: Include fold-const-call.h.
	(cxx_eval_internal_function): Handle IFN_VEC_CONVERT.
	(potential_constant_expression_1): Likewise.
	* semantics.c (cp_build_vec_convert): New function.
	* pt.c (tsubst_copy_and_build): Handle CALL_EXPR to
	IFN_VEC_CONVERT.

2019-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR c++/88636
	* decl.c (builtin_function_1): Return result of pushdecl_top_level
	or pushdecl rather than decl.

2019-01-03  Paolo Carlini  <paolo.carlini@oracle.com>

	* tree.c (handle_nodiscard_attribute): Improve warning location.

2019-01-02  Marek Polacek  <polacek@redhat.com>

	PR c++/88612 - ICE with -Waddress-of-packed-member.
	* call.c (convert_for_arg_passing): Only give warnings with tf_warning.
	* typeck.c (convert_for_assignment): Likewise.

	PR c++/88631 - CTAD failing for value-initialization.
	* typeck2.c (build_functional_cast): Try deducing the template
	arguments even if there are no arguments to deduce from.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.
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