path: root/gcc/cp/ChangeLog

2013-03-20  Jason Merrill  <jason@redhat.com>

	* name-lookup.c (get_anonymous_namespace_name): Never use
	get_file_function_name.

	* pt.c (retrieve_specialization): Handle null tmpl argument.

	PR c++/17232
	PR c++/56642
	* pt.c (tsubst_decl): Check return value of register_specialization.
	* typeck2.c (abstract_virtuals_error_sfinae): Re-apply complete_type
	change.

2013-03-17  Jason Merrill  <jason@redhat.com>

	PR c++/54359
	PR c++/56639
	* parser.c (cp_parser_direct_declarator): Bail if we see a
	qualified-id not at namespace scope.

	PR c++/17232
	PR c++/56642
	* typeck2.c (abstract_virtuals_error_sfinae): Revert complete_type
	change for now.

2013-03-16  Jason Merrill  <jason@redhat.com>

	* decl.c (grokdeclarator): Assert that we won't see a pointer to
	METHOD_TYPE.

	PR c++/54277
	* cp-tree.h (WILDCARD_TYPE_P): Split out from...
	(MAYBE_CLASS_TYPE_P): ...here.
	* semantics.c (lambda_capture_field_type): Only build a
	magic decltype for wildcard types.
	(lambda_proxy_type): Likewise.
	(finish_non_static_data_member): Get the quals from
	the object.

	PR c++/55931
	* parser.c (cp_parser_template_argument): Don't
	fold_non_dependent_expr.

	* parser.c (cp_parser_lambda_declarator_opt): Use
	cp_parser_trailing_type_id.

	PR c++/45917
	* parser.c (cp_parser_template_id): Don't forget access checks.

	PR c++/52374
	* pt.c (tsubst_qualified_id): Use current_nonlambda_class_type.

	PR c++/54764
	PR c++/55972
	* name-lookup.h (tag_scope): Add ts_lambda.
	* semantics.c (begin_lambda_type): Use it.
	* decl.c (xref_tag_1): Set CLASSTYPE_LAMBDA_EXPR.
	* pt.c (check_default_tmpl_args): Ignore lambdas.
	(push_template_decl_real): Handle lambdas.
	* tree.c (no_linkage_check): Adjust lambda check.

	PR c++/56039
	* tree.c (strip_typedefs_expr): Complain about lambda, don't abort.

	PR c++/54359
	* parser.c (cp_parser_direct_declarator): Fix late return
	for out-of-class defn of member function.

	PR c++/55357
	* semantics.c (maybe_add_lambda_conv_op): Clear DECL_NAME of copied
	parms to avoid duplicate -Wshadow warnings.

	* search.c (lookup_base): Handle NULL_TREE.

	PR c++/56481
	* semantics.c (potential_constant_expression_1): Use of 'this' in
	a non-constexpr function makes the expression not potentially
	constant.

	N3276
	PR c++/52748
	* cp-tree.h (tsubst_flags): Add tf_decltype.
	* call.c (build_cxx_call): Don't build a temporary if it's set.
	(build_over_call): Make sure it's only passed to build_cxx_call.
	* parser.c (cp_parser_primary_expression): Add decltype_p parm.
	(cp_parser_unary_expression): Likewise.
	(cp_parser_cast_expression): Likewise.
	(cp_parser_binary_expression): Likewise.
	(cp_parser_assignment_expression): Likewise.
	(cp_parser_postfix_expression): Likewise.  Pass tf_decltype.
	(cp_parser_explicit_instantiation): Add decltype_p.  Force a
	temporary for a call on the LHS of a comma.
	(cp_parser_decltype): Pass true to decltype_p parms.
	* pt.c (tsubst) [DECLTYPE_TYPE]: Pass tf_decltype.
	(tsubst_copy_and_build): Pass tf_decltype down only for
	CALL_EXPR and the RHS of COMPOUND_EXPR.
	* tree.c (build_cplus_new): Call complete_type_or_maybe_complain.

	* cp-tree.h (abstract_class_use): New enum.
	* typeck2.c (pending_abstract_type): Add use field.
	(abstract_virtuals_error_sfinae): Add overloads taking
	abstract_class_use instead of tree.
	* typeck.c (build_static_cast_1): Call it.
	* except.c (is_admissible_throw_operand_or_catch_parameter): Call it.
	* pt.c: Adjust calls.
	* decl.c (cp_finish_decl): Don't handle functions specially.
	(grokdeclarator): Always check return type.
	* init.c (build_new_1): Adjust call.

	DR 337
	PR c++/17232
	* pt.c (tsubst) [ARRAY_TYPE]: Use abstract_virtuals_error_sfinae.
	* typeck2.c (abstract_virtuals_error_sfinae): Call complete_type.

	DR 657
	* pt.c (tsubst_function_type): Call abstract_virtuals_error_sfinae.
	(tsubst_arg_types): Likewise.

	DR 1518
	PR c++/54835
	* call.c (convert_like_real): Check for explicit constructors
	even for value-initialization.

	PR c++/54946
	* pt.c (convert_nontype_argument): Handle invalid pointer.

	* parser.c (cp_parser_lambda_expression): Use nreverse.

	PR c++/56447
	PR c++/55532
	* pt.c (instantiate_class_template_1): Instantiate lambda capture
	list here.
	(tsubst_copy_and_build): Not here.

	PR c++/55017
	* method.c (walk_field_subobs): Disallow copy of rvalue ref.

	PR c++/55240
	* parser.c (parsing_nsdmi): New.
	* semantics.c (outer_automatic_var_p): Check it.
	(finish_id_expression): Likewise.
	* cp-tree.h: Declare it.

	PR c++/55241
	* error.c (dump_expr) [SIZEOF_EXPR]: Print sizeof... properly.

	* parser.c (lookup_literal_operator): Correct parm/arg naming
	mixup.

	PR c++/56238
	* pt.c (fold_non_dependent_expr_sfinae): Check
	instantiation_dependent_expression_p.

	PR c++/56095
	* class.c (resolve_address_of_overloaded_function): Accept a
	reference to function for target_type.
	(instantiate_type): Likewise.
	* pt.c (convert_nontype_argument): Pass it to
	convert_nontype_argument_function.

2013-03-16  Jakub Jelinek  <jakub@redhat.com>

	* tree.c (cp_tree_equal): Fix a pasto.

	PR c++/56607
	* typeck.c (cp_build_binary_op): When calling warn_for_div_by_zero,
	pass op1 through maybe_constant_value first.

2013-03-16  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/56582
	* semantics.c (cxx_eval_array_reference): Check for negative index.

2013-03-14  Jason Merrill  <jason@redhat.com>

	PR c++/56614
	* decl.c (local_variable_p_walkfn): Check DECL_ARTIFICIAL again.

	PR c++/56346
	* decl.c (register_dtor_fn): Pass null to __cxa_thread_atexit
	dso_handle parm on targets without __cxa_atexit.

2013-03-11  Jason Merrill  <jason@redhat.com>

	PR c++/56567
	* typeck.c (check_return_expr): Disallow returning init list here.
	* semantics.c (apply_deduced_return_type): Not here.

2013-03-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51412
	* cxx-pretty-print.c (pp_cxx_expression): Handle LAMBDA_EXPR.
	* error.c (dump_expr): Likewise.

2013-03-08  Jason Merrill  <jason@redhat.com>

	PR c++/51884
	* class.c (modify_all_vtables): Mangle the vtable name before
	entering dfs_walk.

	* semantics.c (lambda_expr_this_capture): In unevaluated context,
	just return the nearest 'this'.

	PR c++/51494
	PR c++/52183
	PR c++/56222
	* tree.c (maybe_dummy_object): Don't capture 'this'.
	* semantics.c (maybe_resolve_dummy): New.
	(finish_non_static_data_member): Use it.
	(finish_qualified_id_expr): Don't test is_dummy_object.
	* cp-tree.h: Declare maybe_resolve_dummy.
	* call.c (build_new_method_call_1): Use it.

	PR c++/56567
	* semantics.c (apply_deduced_return_type): Don't allow returning
	std::initializer_list.

2013-03-06  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/56534
	* parser.c (cp_parser_elaborated_type_specifier): Don't call
	check_elaborated_type_specifier when TREE_CODE (decl) != TYPE_DECL.
	* decl.c (check_elaborated_type_specifier): Tidy.

2013-03-06  Jakub Jelinek  <jakub@redhat.com>

	PR c++/56543
	* tree.c (strip_typedefs): Don't copy args if they are NULL.

2013-03-05  Jakub Jelinek  <jakub@redhat.com>

	* parser.c (cp_parser_braced_list): For {} initialize
	*non_constant_p to false.

2013-03-04  Jason Merrill  <jason@redhat.com>

	PR c++/56464
	PR c++/54383
	* semantics.c (lambda_expr_this_capture): Handle NSDMI
	and non-class scopes.

2013-03-01  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Remove dead code.

2013-02-28  Jason Merrill  <jason@redhat.com>

	PR c++/56481
	* semantics.c (potential_constant_expression_1): Use
	cxx_eval_outermost_constant_expr rather than maybe_constant_value.

	PR c++/56243
	* call.c (build_over_call): Avoid virtual lookup in a template.

2013-02-27  Jason Merrill  <jason@redhat.com>

	PR c++/56358
	PR c++/56323
	* name-lookup.c (do_class_using_decl): Use ctor_identifier instead
	of the base name for inheriting ctors.
	(push_class_level_binding_1): Remove inheriting ctor handling.
	* pt.c (tsubst_decl) [USING_DECL]: Likewise.
	* class.c (add_implicitly_declared_members): Adjust.

2013-02-26  David Binderman  <dcb314@hotmail.com>

	PR c++/55632
	* decl.c (grokdeclarator): Tidy publicp assignment.

2013-02-25  Aldy Hernandez  <aldyh@redhat.com>

	PR c++/56419
	* semantics.c (begin_transaction_stmt): Set TREE_SIDE_EFFECTS.
	(build_transaction_expr): Same.

2013-02-25  Jason Merrill  <jason@redhat.com>

	PR c++/56377
	* pt.c (fn_type_unification): Wait to call push_tinst_level until
	we know what args we're looking at.

	PR c++/56438
	* semantics.c (potential_constant_expression_1): In C++98, a cast
	to non-integral type can't be a constant expression.

2013-02-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/56403
	* init.c (build_zero_init_1): Use RECORD_OR_UNION_CODE_P instead
	of CLASS_TYPE_P.

2013-02-22  Jason Merrill  <jason@redhat.com>

	PR c++/40405
	* pt.c (push_template_decl_real): Set DECL_INTERFACE_KNOWN
	if we got the wrong number of template parms.

	PR c++/56377
	* pt.c (fn_type_unification): Use explicit args in template
	instantiation context.

	PR c++/56359
	* call.c (can_convert_arg): Discard access checks.

	PR c++/56395
	* tree.c (strip_typedefs): Strip typedefs from TYPENAME_TYPE template
	args.

2013-02-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/56373
	* tree.c (maybe_warn_zero_as_null_pointer_constant): Add.
	* cvt.c (ocp_convert): Use the latter.
	(cp_convert_to_pointer): Likewise.
	* decl.c (check_default_argument): Likewise.
	* typeck.c (cp_build_binary_op): Likewise.
	* cp-tree.h (maybe_warn_zero_as_null_pointer_constant): Declare.

2013-02-15  Jonathan Wakely  <jwakely.gcc@gmail.com>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/51242
	* decl2.c (grokbitfield): Allow scoped enumeration types.

2013-02-15  Jason Merrill  <jason@redhat.com>

	PR c++/54276
	* semantics.c (finish_id_expression): Also return the identifier
	for an outer local static.

	PR c++/56343
	* class.c (check_bases_and_members): Deduce noexcept after
	checking bases.

	PR c++/52026
	* semantics.c (finish_id_expression): In a template, return
	the identifier for a constant variable.

2013-02-14  Jason Merrill  <jason@redhat.com>

	PR c++/54922
	* semantics.c (build_anon_member_initialization): New.
	(build_data_member_initialization): Use it.

	PR c++/55003
	* decl.c (cp_finish_decl): Force instantiation of an
	auto static data member.

	PR c++/55220
	* pt.c (unify): A pack expansion that is not the last template
	argument makes the entire template argument list non-deduced.

	PR c++/56323
	* name-lookup.c (do_class_using_decl): Handle typedefs with
	inheriting constructors.
	(push_class_level_binding_1): Allow inheriting from template
	template parameter, too.
	* pt.c (tsubst_decl) [USING_DECL]: Likewise.

	PR c++/55223
	* pt.c (tsubst_copy_and_build) [LAMBDA_EXPR]: Fix handling of
	default argument scope.
	* mangle.c (write_name): Likewise.

	PR c++/55232
	* error.c (find_typenames_r): Don't walk into a pack expansion.

2013-02-13  Jason Merrill  <jason@redhat.com>

	PR c++/55670
	* parser.c (cp_parser_member_declaration): Check the declarator
	form when detecting a function declaration via typedef.

	PR c++/55680
	* pt.c (maybe_process_partial_specialization): A lambda
	isn't what's being specialized.

	PR c++/55710
	* semantics.c (maybe_add_lambda_conv_op): Mark static thunk
	TREE_USED.

	PR c++/55879
	* semantics.c (cxx_bind_parameters_in_call): Undo DECL_BY_REFERENCE.

	PR c++/55993
	* semantics.c (cxx_fold_indirect_ref): Handle empty bases at
	non-zero offsets, too.

	PR c++/56155
	* decl.c (build_enumerator): Always convert the value to a
	fixed underlying type.

	PR c++/56135
	* pt.c (tsubst_copy_and_build): Don't forget any new
	captures that arose from use of dependent names.

2013-02-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/56302
	* semantics.c (finish_asm_stmt): If input constraints allow
	neither register nor memory, try maybe_constant_value to get
	a constant if possible.

2013-02-12  Jason Merrill  <jason@redhat.com>

	PR c++/56285
	* method.c (add_one_base_init): Handle base constructor
	taking rvalue reference parm.

	PR c++/56291
	* semantics.c (sort_constexpr_mem_initializers): Handle
	vptr out of order.

2013-02-09  Jason Merrill  <jason@redhat.com>

	PR c++/56268
	* semantics.c (classtype_has_nothrow_assign_or_copy_p): Call
	maybe_instantiate_noexcept.

	PR c++/56247
	* pt.c (eq_specializations): Set comparing_specializations.
	* tree.c (cp_tree_equal): Check it.
	* cp-tree.h: Declare it.

	* decl.c (decls_match): Check versions later.

	PR c++/56238
	* pt.c (build_non_dependent_expr): Don't try to fold
	instantiation-dependent expressions.
	(instantiation_dependent_r) [TRAIT_EXPR]: Split out.
	[BIND_EXPR]: Treat as dependent.

2013-02-07  Jakub Jelinek  <jakub@redhat.com>

	PR c++/56241
	* init.c (build_vec_init): Don't append NULL values into new_vec.
	(build_zero_init_1): Don't push anything into v if recursive call
	returned NULL_TREE.
	(build_value_init_noctor): Don't push anything into v if
	build_value_init call returned NULL_TREE.

	PR c++/56239
	* parser.c (cp_parser_token_starts_cast_expression): Renamed to...
	(cp_parser_tokens_start_cast_expression): ... this.  Change parameter
	to cp_parser *, call cp_lexer_peek_token first.  For CPP_OPEN_PAREN,
	return true only if 2nd token isn't CPP_CLOSE_PAREN.
	(cp_parser_cast_expression): Adjust caller.

	PR c++/56237
	* decl.c (push_local_name): Look at DECL_DISCRIMINATOR (t)
	only if DECL_DISCRIMINATOR_SET_P (t) rather than just
	DECL_LANG_SPECIFIC (t).

2013-02-07  Jason Merrill  <jason@redhat.com>

	PR c++/56235
	* method.c (do_build_copy_constructor): Don't bother turning
	scalars from lvalues to xvalues.
	(do_build_copy_assign): Likewise.

2013-02-06  Jason Merrill  <jason@redhat.com>

	* parser.c (cp_parser_enum_specifier): Check for error_mark_node.

2013-02-05  Jason Merrill  <jason@redhat.com>

	PR c++/54122
	* tree.c (lvalue_kind) [INDIRECT_REF]: Don't check for
	METHOD_TYPE.

	PR c++/56177
	* decl.c (start_preparsed_function): Update restype if we change
	decl1.

	PR c++/56208
	* pt.c (fn_type_unification): Discard any access checks from
	substituting explicit args.

2013-01-31  Jason Merrill  <jason@redhat.com>

	PR c++/56162
	PR c++/56104
	* typeck.c (get_member_function_from_ptrfunc): Fix
	ptrmemfunc_vbit_in_delta case.

2013-01-29  Jason Merrill  <jason@redhat.com>

	PR libstdc++/54314
	* class.c (build_ctor_vtbl_group): Give construction vtables
	hidden visibility.

2013-01-25  Jason Merrill  <jason@redhat.com>

	PR c++/56095
	* pt.c (convert_nontype_argument_function): Handle invalid input.
	(convert_nontype_argument): Likewise.

	PR c++/56104
	* typeck.c (get_member_function_from_ptrfunc): Optimize if the
	dynamic type has no virtual functions.

2013-01-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/55944
	* decl.c (check_initializer): Use TARGET_EXPR_DIRECT_INIT_P only
	on TARGET_EXPR nodes.

2013-01-22  Jason Merrill  <jason@redhat.com>

	PR c++/56071
	* pt.c (maybe_instantiate_noexcept): Don't defer access checks.

2013-01-22  Dodji Seketeli  <dodji@redhat.com>

	PR c++/53609
	* pt.c (argument_pack_element_is_expansion_p)
	(make_argument_pack_select, use_pack_expansion_extra_args_p)
	(gen_elem_of_pack_expansion_instantiation): New static functions.
	(tsubst): When looking through an ARGUMENT_PACK_SELECT tree node,
	look through the possibly resulting pack expansion as well.
	(tsubst_pack_expansion): Use use_pack_expansion_extra_p to
	generalize when to use the PACK_EXPANSION_EXTRA_ARGS mechanism.
	Use gen_elem_of_pack_expansion_instantiation to build the
	instantiation piece-wise.  Don't use arg_from_parm_pack_p anymore,
	as gen_elem_of_pack_expansion_instantiation and the change in
	tsubst above generalize this particular case.
	(arg_from_parm_pack_p): Remove this for it's not used by
	tsubst_pack_expansion anymore.

2013-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/56059
	* tree.c (strip_typedefs_expr) [TREE_VEC]: Preserve non-default
	template args count.

2013-01-18  Jason Merrill  <jason@redhat.com>

	PR target/54908
	* decl2.c (get_local_tls_init_fn): New.
	(get_tls_init_fn): Handle flag_extern_tls_init.  Don't bother
	with aliases for internal variables.  Don't use weakrefs if
	the variable needs destruction.
	(generate_tls_wrapper): Mark the wrapper as const if no
	initialization is needed.
	(handle_tls_init): Don't require aliases.

2013-01-15  Dodji Seketeli  <dodji@redhat.com>

	PR c++/55663
	* pt.c (coerce_innermost_template_parms): New static function.
	(instantiate_alias_template):  Use it here.

2013-01-09  Jason Merrill  <jason@redhat.com>

	PR c++/55878
	* rtti.c (build_typeid, get_typeid): Add complain parm.
	(get_tinfo_decl_dynamic): Likewise.
	* cp-tree.h, parser.c, pt.c: Adjust.

	PR c++/55893
	* decl.c (cp_finish_decl): Clear TREE_READONLY if the variable
	needs destruction.

2013-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR c/48418
	* typeck.c (cp_build_binary_op): For LSHIFT_EXPR and RSHIFT_EXPR,
	call maybe_constant_value for the negative or too big shift
	count warnings.

2013-01-09  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/55801
	* decl2.c (var_needs_tls_wrapper): Return false when error_operand_p
	of the argument is true.

2013-01-08  Joel Brobecker  <brobecker@adacore.com>

	* parser.c (cp_parser_initializer_list): Move declaration
	of variable non_const to start of lexical block.

2013-01-07  Jason Merrill  <jason@redhat.com>

	PR c++/55753
	* tree.c (build_aggr_init_expr): Do nothing in a template.
	* pt.c (tsubst_copy_and_build) [CALL_EXPR]: Strip an ADDR_EXPR off
	a FUNCTION_DECL before tsubsting.

2013-01-04  Dodji Seketeli  <dodji@redhat.com>

	PR c++/52343
	* pt.c (check_instantiated_arg): Allow type template arguments.

2013-01-04  Jason Merrill  <jason@redhat.com>

	PR c++/55877
	* decl.c (reset_type_linkage, bt_reset_linkage): New.
	(grokdeclarator): Use reset_type_linkage.
	* name-lookup.c (binding_table_foreach): Handle null table.
	* tree.c (decl_anon_ns_mem_p): Check TYPE_MAIN_DECL, not TYPE_NAME.

2013-01-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/54526 (again)
	* parser.c (cp_parser_template_id): Revert core of previous change
	(keep adjusted inform message).

2013-01-03  Jason Merrill  <jason@redhat.com>

	PR c++/55419
	PR c++/55753
	* pt.c (tsubst_copy_and_build) [TARGET_EXPR]: Don't touch
	TREE_CONSTANT.

	PR c++/55842
	* semantics.c (trait_expr_value): Call maybe_instantiate_noexcept.

	PR c++/55856
	* semantics.c (build_data_member_initialization): Handle DECL_EXPR.

	PR c++/53650
	* call.c (type_has_extended_temps): New.
	* cp-tree.h: Declare it.
	* decl.c (check_initializer): Use build_aggr_init for arrays
	if it is false.
	* init.c (build_vec_init): Avoid mixed signed/unsigned arithmetic.

2013-01-02  Jason Merrill  <jason@redhat.com>

	PR c++/54325
	* call.c (build_new_method_call_1): Don't use build_value_init for
	user-provided default constructors.

	* decl.c (check_default_argument): Use LOOKUP_IMPLICIT.

	PR c++/55032
	PR c++/55245
	* tree.c (build_cplus_array_type): Copy layout information
	to main variant if necessary.

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