//==--- DiagnosticSemaKinds.td - libsema diagnostics ----------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

//===----------------------------------------------------------------------===//
// Semantic Analysis
//===----------------------------------------------------------------------===//

let Component = "Sema" in {
let CategoryName = "Semantic Issue" in {

// For loop analysis
def warn_variables_not_in_loop_body : Warning<
  "variable%select{s| %1|s %1 and %2|s %1, %2, and %3|s %1, %2, %3, and %4}0 "
  "used in loop condition not modified in loop body">,
  InGroup<DiagGroup<"loop-analysis">>, DefaultIgnore;

def warn_duplicate_enum_values : Warning<
  "element %0 has been implicitly assigned %1 which another element has "
  "been assigned">, InGroup<DiagGroup<"duplicate-enum">>, DefaultIgnore;
def note_duplicate_element : Note<"element %0 also has value %1">;

// Constant expressions
def err_expr_not_ice : Error<
  "expression is not an %select{integer|integral}0 constant expression">;
def ext_expr_not_ice : Extension<
  "expression is not an %select{integer|integral}0 constant expression; "
  "folding it to a constant is a GNU extension">, InGroup<GNU>;
def err_typecheck_converted_constant_expression : Error<
  "value of type %0 is not implicitly convertible to %1">;
def err_typecheck_converted_constant_expression_disallowed : Error<
  "conversion from %0 to %1 is not allowed in a converted constant expression">;
def err_expr_not_cce : Error<
  "%select{case value|enumerator value|non-type template argument}0 "
  "is not a constant expression">;
def err_cce_narrowing : ExtWarn<
  "%select{case value|enumerator value|non-type template argument}0 "
  "%select{cannot be narrowed from type %2 to %3|"
  "evaluates to %2, which cannot be narrowed to type %3}1">,
  InGroup<CXX11Narrowing>, DefaultError;
def err_cce_narrowing_sfinae : Error<
  "%select{case value|enumerator value|non-type template argument}0 "
  "%select{cannot be narrowed from type %2 to %3|"
  "evaluates to %2, which cannot be narrowed to type %3}1">;
def err_ice_not_integral : Error<
  "integral constant expression must have integral or unscoped enumeration "
  "type, not %0">;
def err_ice_incomplete_type : Error<
  "integral constant expression has incomplete class type %0">;
def err_ice_explicit_conversion : Error<
  "integral constant expression requires explicit conversion from %0 to %1">;
def note_ice_conversion_here : Note<
  "conversion to %select{integral|enumeration}0 type %1 declared here">;
def err_ice_ambiguous_conversion : Error<
  "ambiguous conversion from type %0 to an integral or unscoped "
  "enumeration type">;

// Semantic analysis of constant literals.
def ext_predef_outside_function : Warning<
  "predefined identifier is only valid inside function">,
  InGroup<DiagGroup<"predefined-identifier-outside-function">>;
def warn_float_overflow : Warning<
  "magnitude of floating-point constant too large for type %0; maximum is %1">,
   InGroup<LiteralRange>;
def warn_float_underflow : Warning<
  "magnitude of floating-point constant too small for type %0; minimum is %1">,
  InGroup<LiteralRange>;
def warn_double_const_requires_fp64 : Warning<
  "double precision constant requires cl_khr_fp64, casting to single precision">;

// C99 variable-length arrays
def ext_vla : Extension<"variable length arrays are a C99 feature">,
  InGroup<VLAExtension>;
def warn_vla_used : Warning<"variable length array used">,
  InGroup<VLA>, DefaultIgnore;
def err_vla_non_pod : Error<"variable length array of non-POD element type %0">;
def err_vla_in_sfinae : Error<
  "variable length array cannot be formed during template argument deduction">;
def err_array_star_in_function_definition : Error<
  "variable length array must be bound in function definition">;
def err_vla_decl_in_file_scope : Error<
  "variable length array declaration not allowed at file scope">;
def err_vla_decl_has_static_storage : Error<
  "variable length array declaration can not have 'static' storage duration">;
def err_vla_decl_has_extern_linkage : Error<
  "variable length array declaration can not have 'extern' linkage">;
def ext_vla_folded_to_constant : Extension<
  "variable length array folded to constant array as an extension">;

// C99 variably modified types
def err_variably_modified_template_arg : Error<
  "variably modified type %0 cannot be used as a template argument">;
def err_variably_modified_nontype_template_param : Error<
  "non-type template parameter of variably modified type %0">;
def err_variably_modified_new_type : Error<
  "'new' cannot allocate object of variably modified type %0">;

// C99 Designated Initializers
def ext_designated_init : Extension<
  "designated initializers are a C99 feature">, InGroup<C99>;
def err_array_designator_negative : Error<
  "array designator value '%0' is negative">;
def err_array_designator_empty_range : Error<
  "array designator range [%0, %1] is empty">;
def err_array_designator_non_array : Error<
  "array designator cannot initialize non-array type %0">;
def err_array_designator_too_large : Error<
  "array designator index (%0) exceeds array bounds (%1)">;
def err_field_designator_non_aggr : Error<
  "field designator cannot initialize a "
  "%select{non-struct, non-union|non-class}0 type %1">;
def err_field_designator_unknown : Error<
  "field designator %0 does not refer to any field in type %1">;
def err_field_designator_nonfield : Error<
  "field designator %0 does not refer to a non-static data member">;
def note_field_designator_found : Note<"field designator refers here">;
def err_designator_for_scalar_init : Error<
  "designator in initializer for scalar type %0">;
def warn_subobject_initializer_overrides : Warning<
  "subobject initialization overrides initialization of other fields "
  "within its enclosing subobject">, InGroup<InitializerOverrides>;
def warn_initializer_overrides : Warning<
  "initializer overrides prior initialization of this subobject">,
  InGroup<InitializerOverrides>;
def note_previous_initializer : Note<
  "previous initialization %select{|with side effects }0is here"
  "%select{| (side effects may not occur at run time)}0">;
def err_designator_into_flexible_array_member : Error<
  "designator into flexible array member subobject">;
def note_flexible_array_member : Note<
  "initialized flexible array member %0 is here">;
def ext_flexible_array_init : Extension<
  "flexible array initialization is a GNU extension">, InGroup<GNU>;

// Declarations.
def err_bad_variable_name : Error<
  "%0 cannot be the name of a variable or data member">;
def err_bad_parameter_name : Error<
  "'%0' cannot be the name of a parameter">;
def err_parameter_name_omitted : Error<"parameter name omitted">;
def warn_unused_parameter : Warning<"unused parameter %0">,
  InGroup<UnusedParameter>, DefaultIgnore;
def warn_unused_variable : Warning<"unused variable %0">,
  InGroup<UnusedVariable>, DefaultIgnore;
def warn_unused_exception_param : Warning<"unused exception parameter %0">,
  InGroup<UnusedExceptionParameter>, DefaultIgnore;
def warn_decl_in_param_list : Warning<
  "declaration of %0 will not be visible outside of this function">,
  InGroup<Visibility>;
def warn_redefinition_in_param_list : Warning<
  "redefinition of %0 will not be visible outside of this function">,
  InGroup<Visibility>;
def warn_empty_parens_are_function_decl : Warning<
  "empty parentheses interpreted as a function declaration">,
  InGroup<VexingParse>;
def warn_parens_disambiguated_as_function_declaration : Warning<
  "parentheses were disambiguated as a function declaration">,
  InGroup<VexingParse>;
def note_additional_parens_for_variable_declaration : Note<
  "add a pair of parentheses to declare a variable">;
def note_empty_parens_function_call : Note<
  "change this ',' to a ';' to call %0">;
def note_empty_parens_default_ctor : Note<
  "remove parentheses to declare a variable">;
def note_empty_parens_zero_initialize : Note<
  "replace parentheses with an initializer to declare a variable">;
def warn_unused_function : Warning<"unused function %0">,
  InGroup<UnusedFunction>, DefaultIgnore;
def warn_unused_member_function : Warning<"unused member function %0">,
  InGroup<UnusedMemberFunction>, DefaultIgnore;
def warn_used_but_marked_unused: Warning<"%0 was marked unused but was used">,
  InGroup<UsedButMarkedUnused>, DefaultIgnore;
def warn_unneeded_internal_decl : Warning<
  "%select{function|variable}0 %1 is not needed and will not be emitted">,
  InGroup<UnneededInternalDecl>, DefaultIgnore;
def warn_unneeded_static_internal_decl : Warning<
  "'static' function %0 declared in header file "
  "should be declared 'static inline'">,
  InGroup<UnneededInternalDecl>, DefaultIgnore;
def warn_unneeded_member_function : Warning<
  "member function %0 is not needed and will not be emitted">,
  InGroup<UnneededMemberFunction>, DefaultIgnore;
def warn_unused_private_field: Warning<"private field %0 is not used">,
  InGroup<UnusedPrivateField>, DefaultIgnore;

def warn_parameter_size: Warning<
  "%0 is a large (%1 bytes) pass-by-value argument; "
  "pass it by reference instead ?">, InGroup<LargeByValueCopy>;
def warn_return_value_size: Warning<
  "return value of %0 is a large (%1 bytes) pass-by-value object; "
  "pass it by reference instead ?">, InGroup<LargeByValueCopy>;
def warn_return_value_udt: Warning<
  "%0 has C-linkage specified, but returns user-defined type %1 which is "
  "incompatible with C">, InGroup<ReturnTypeCLinkage>;
def warn_return_value_udt_incomplete: Warning<
  "%0 has C-linkage specified, but returns incomplete type %1 which could be "
  "incompatible with C">, InGroup<ReturnTypeCLinkage>;
def warn_implicit_function_decl : Warning<
  "implicit declaration of function %0">,
  InGroup<ImplicitFunctionDeclare>, DefaultIgnore;
def ext_implicit_function_decl : ExtWarn<
  "implicit declaration of function %0 is invalid in C99">,
  InGroup<ImplicitFunctionDeclare>;
def note_function_suggestion : Note<"did you mean %0?">;

def err_ellipsis_first_arg : Error<
  "ISO C requires a named argument before '...'">;
def err_declarator_need_ident : Error<"declarator requires an identifier">;
def err_bad_language : Error<"unknown linkage language">;
def warn_use_out_of_scope_declaration : Warning<
  "use of out-of-scope declaration of %0">;
def err_inline_non_function : Error<
  "'inline' can only appear on functions">;
def err_noreturn_non_function : Error<
  "'_Noreturn' can only appear on functions">;
def warn_qual_return_type : Warning< 
  "'%0' type qualifier%s1 on return type %plural{1:has|:have}1 no effect">,
  InGroup<IgnoredQualifiers>, DefaultIgnore;

def warn_decl_shadow :
  Warning<"declaration shadows a %select{"
          "local variable|"
          "variable in %2|"
          "static data member of %2|"
          "field of %2}1">,
  InGroup<Shadow>, DefaultIgnore;

// C++ using declarations
def err_using_requires_qualname : Error<
  "using declaration requires a qualified name">;
def err_using_typename_non_type : Error<
  "'typename' keyword used on a non-type">;
def err_using_dependent_value_is_type : Error<
  "dependent using declaration resolved to type without 'typename'">;
def err_using_decl_nested_name_specifier_is_not_class : Error<
  "using declaration in class refers into '%0', which is not a class">;
def err_using_decl_nested_name_specifier_is_current_class : Error<
  "using declaration refers to its own class">;
def err_using_decl_nested_name_specifier_is_not_base_class : Error<
  "using declaration refers into '%0', which is not a base class of %1">;
def err_using_decl_constructor_not_in_direct_base : Error<
  "%0 is not a direct base of %1, can not inherit constructors">;
def err_using_decl_constructor_conflict : Error<
  "can not inherit constructor, already inherited constructor with "
  "the same signature">;
def note_using_decl_constructor_conflict_current_ctor : Note<
  "conflicting constructor">;
def note_using_decl_constructor_conflict_previous_ctor : Note<
  "previous constructor">;
def note_using_decl_constructor_conflict_previous_using : Note<
  "previously inherited here">;
def warn_using_decl_constructor_ellipsis : Warning<
  "inheriting constructor does not inherit ellipsis">,
  InGroup<DiagGroup<"inherited-variadic-ctor">>;
def note_using_decl_constructor_ellipsis : Note<
  "constructor declared with ellipsis here">;
def err_using_decl_can_not_refer_to_class_member : Error<
  "using declaration can not refer to class member">;
def err_using_decl_can_not_refer_to_namespace : Error<
  "using declaration can not refer to namespace">;
def err_using_decl_constructor : Error<
  "using declaration can not refer to a constructor">;
def warn_cxx98_compat_using_decl_constructor : Warning<
  "inheriting constructors are incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_using_decl_destructor : Error<
  "using declaration can not refer to a destructor">;
def err_using_decl_template_id : Error<
  "using declaration can not refer to a template specialization">;
def note_using_decl_target : Note<"target of using declaration">;
def note_using_decl_conflict : Note<"conflicting declaration">;
def err_using_decl_redeclaration : Error<"redeclaration of using decl">;
def err_using_decl_conflict : Error<
  "target of using declaration conflicts with declaration already in scope">;
def err_using_decl_conflict_reverse : Error<
  "declaration conflicts with target of using declaration already in scope">;
def note_using_decl : Note<"%select{|previous }0using declaration">;

def warn_access_decl_deprecated : Warning<
  "access declarations are deprecated; use using declarations instead">,
  InGroup<Deprecated>;

def warn_global_constructor : Warning<
  "declaration requires a global constructor">,
  InGroup<GlobalConstructors>, DefaultIgnore;
def warn_global_destructor : Warning<
  "declaration requires a global destructor">,
   InGroup<GlobalConstructors>, DefaultIgnore;
def warn_exit_time_destructor : Warning<
  "declaration requires an exit-time destructor">,
  InGroup<ExitTimeDestructors>, DefaultIgnore;

def err_invalid_thread : Error<
  "'%0' is only allowed on variable declarations">;
def err_thread_non_global : Error<
  "'%0' variables must have global storage">;
def err_thread_unsupported : Error<
  "thread-local storage is unsupported for the current target">;

def warn_maybe_falloff_nonvoid_function : Warning<
  "control may reach end of non-void function">,
  InGroup<ReturnType>;
def warn_falloff_nonvoid_function : Warning<
  "control reaches end of non-void function">,
  InGroup<ReturnType>;
def err_maybe_falloff_nonvoid_block : Error<
  "control may reach end of non-void block">;
def err_falloff_nonvoid_block : Error<
  "control reaches end of non-void block">;
def warn_suggest_noreturn_function : Warning<
  "%select{function|method}0 %1 could be declared with attribute 'noreturn'">,
  InGroup<MissingNoreturn>, DefaultIgnore;
def warn_suggest_noreturn_block : Warning<
  "block could be declared with attribute 'noreturn'">,
  InGroup<MissingNoreturn>, DefaultIgnore;
def warn_unreachable : Warning<"will never be executed">,
  InGroup<DiagGroup<"unreachable-code">>, DefaultIgnore;

/// Built-in functions.
def ext_implicit_lib_function_decl : ExtWarn<
  "implicitly declaring library function '%0' with type %1">;
def note_please_include_header : Note<
  "please include the header <%0> or explicitly provide a "
  "declaration for '%1'">;
def note_previous_builtin_declaration : Note<"%0 is a builtin with type %1">;
def warn_implicit_decl_requires_stdio : Warning<
  "declaration of built-in function '%0' requires inclusion of the header "
  "<stdio.h>">,
  InGroup<BuiltinRequiresHeader>;
def warn_implicit_decl_requires_setjmp : Warning<
  "declaration of built-in function '%0' requires inclusion of the header "
  "<setjmp.h>">,
  InGroup<BuiltinRequiresHeader>;
def warn_implicit_decl_requires_ucontext : Warning<
  "declaration of built-in function '%0' requires inclusion of the header "
  "<ucontext.h>">,
  InGroup<BuiltinRequiresHeader>;
def warn_redecl_library_builtin : Warning<
  "incompatible redeclaration of library function %0">,
  InGroup<DiagGroup<"incompatible-library-redeclaration">>;
def err_builtin_definition : Error<"definition of builtin function %0">;
def err_types_compatible_p_in_cplusplus : Error<
  "__builtin_types_compatible_p is not valid in C++">;
def warn_builtin_unknown : Warning<"use of unknown builtin %0">,
  InGroup<ImplicitFunctionDeclare>, DefaultError;
def warn_dyn_class_memaccess : Warning<
  "%select{destination for|source of|first operand of|second operand of}0 this "
  "%1 call is a pointer to dynamic class %2; vtable pointer will be "
  "%select{overwritten|copied|moved|compared}3">,
  InGroup<DiagGroup<"dynamic-class-memaccess">>;
def note_bad_memaccess_silence : Note<
  "explicitly cast the pointer to silence this warning">;
def warn_sizeof_pointer_expr_memaccess : Warning<
  "'%0' call operates on objects of type %1 while the size is based on a " 
  "different type %2">, 
  InGroup<SizeofPointerMemaccess>;
def warn_sizeof_pointer_expr_memaccess_note : Note<
  "did you mean to %select{dereference the argument to 'sizeof' (and multiply "
  "it by the number of elements)|remove the addressof in the argument to "
  "'sizeof' (and multiply it by the number of elements)|provide an explicit "
  "length}0?">;
def warn_sizeof_pointer_type_memaccess : Warning<
  "argument to 'sizeof' in %0 call is the same pointer type %1 as the "
  "%select{destination|source}2; expected %3 or an explicit length">,
  InGroup<SizeofPointerMemaccess>;
def warn_strlcpycat_wrong_size : Warning<
  "size argument in %0 call appears to be size of the source; expected the size of "
  "the destination">,
  InGroup<DiagGroup<"strlcpy-strlcat-size">>;
def note_strlcpycat_wrong_size : Note<
  "change size argument to be the size of the destination">;
  
def warn_strncat_large_size : Warning<
  "the value of the size argument in 'strncat' is too large, might lead to a " 
  "buffer overflow">, InGroup<StrncatSize>;
def warn_strncat_src_size : Warning<"size argument in 'strncat' call appears " 
  "to be size of the source">, InGroup<StrncatSize>;
def warn_strncat_wrong_size : Warning<
  "the value of the size argument to 'strncat' is wrong">, InGroup<StrncatSize>;
def note_strncat_wrong_size : Note<
  "change the argument to be the free space in the destination buffer minus " 
  "the terminating null byte">;

/// main()
// static main() is not an error in C, just in C++.
def warn_static_main : Warning<"'main' should not be declared static">,
    InGroup<Main>;
def err_static_main : Error<"'main' is not allowed to be declared static">;
def err_inline_main : Error<"'main' is not allowed to be declared inline">;
def ext_noreturn_main : ExtWarn<
  "'main' is not allowed to be declared _Noreturn">, InGroup<Main>;
def note_main_remove_noreturn : Note<"remove '_Noreturn'">;
def err_constexpr_main : Error<
  "'main' is not allowed to be declared constexpr">;
def err_main_template_decl : Error<"'main' cannot be a template">;
def err_main_returns_nonint : Error<"'main' must return 'int'">;
def ext_main_returns_nonint : ExtWarn<"return type of 'main' is not 'int'">,
    InGroup<MainReturnType>;
def note_main_change_return_type : Note<"change return type to 'int'">;
def err_main_surplus_args : Error<"too many parameters (%0) for 'main': "
    "must be 0, 2, or 3">;
def warn_main_one_arg : Warning<"only one parameter on 'main' declaration">,
    InGroup<Main>;
def err_main_arg_wrong : Error<"%select{first|second|third|fourth}0 "
    "parameter of 'main' (%select{argument count|argument array|environment|"
    "platform-specific data}0) must be of type %1">;

/// parser diagnostics
def ext_no_declarators : ExtWarn<"declaration does not declare anything">,
  InGroup<MissingDeclarations>;
def ext_typedef_without_a_name : ExtWarn<"typedef requires a name">,
  InGroup<MissingDeclarations>;
def err_typedef_not_identifier : Error<"typedef name must be an identifier">;
def err_statically_allocated_object : Error<
  "interface type cannot be statically allocated">;
def err_object_cannot_be_passed_returned_by_value : Error<
  "interface type %1 cannot be %select{returned|passed}0 by value"
  "; did you forget * in %1?">;
def err_parameters_retval_cannot_have_fp16_type : Error<
  "%select{parameters|function return value}0 cannot have __fp16 type; did you forget * ?">;
def err_opencl_half_load_store : Error<
  "%select{loading directly from|assigning directly to}0 pointer to type %1 is not allowed">;
def err_opencl_cast_to_half : Error<"casting to type %0 is not allowed">;
def err_opencl_half_declaration : Error<
  "declaring variable of type %0 is not allowed">;
def err_opencl_half_argument : Error<
  "declaring function argument of type %0 is not allowed; did you forget * ?">;
def err_opencl_half_return : Error<
  "declaring function return value of type %0 is not allowed; did you forget * ?">;
def warn_enum_value_overflow : Warning<"overflow in enumeration value">;
def warn_pragma_options_align_reset_failed : Warning<
  "#pragma options align=reset failed: %0">;
def err_pragma_options_align_mac68k_target_unsupported : Error<
  "mac68k alignment pragma is not supported on this target">;
def warn_pragma_pack_invalid_alignment : Warning<
  "expected #pragma pack parameter to be '1', '2', '4', '8', or '16'">;
// Follow the MSVC implementation.
def warn_pragma_pack_show : Warning<"value of #pragma pack(show) == %0">;
def warn_pragma_pack_pop_identifer_and_alignment : Warning<
  "specifying both a name and alignment to 'pop' is undefined">;
def warn_pragma_pack_pop_failed : Warning<"#pragma pack(pop, ...) failed: %0">;

def warn_pragma_unused_undeclared_var : Warning<
  "undeclared variable %0 used as an argument for '#pragma unused'">;
def warn_pragma_unused_expected_var_arg : Warning<
  "only variables can be arguments to '#pragma unused'">;
def err_pragma_push_visibility_mismatch : Error<
  "#pragma visibility push with no matching #pragma visibility pop">;
def note_surrounding_namespace_ends_here : Note<
  "surrounding namespace with visibility attribute ends here">;
def err_pragma_pop_visibility_mismatch : Error<
  "#pragma visibility pop with no matching #pragma visibility push">;
def note_surrounding_namespace_starts_here : Note<
  "surrounding namespace with visibility attribute starts here">;

/// Objective-C parser diagnostics
def err_duplicate_class_def : Error<
  "duplicate interface definition for class %0">;
def err_undef_superclass : Error<
  "cannot find interface declaration for %0, superclass of %1">;
def err_forward_superclass : Error<
  "attempting to use the forward class %0 as superclass of %1">;
def err_no_nsconstant_string_class : Error<
  "cannot find interface declaration for %0">;
def err_recursive_superclass : Error<
  "trying to recursively use %0 as superclass of %1">;
def warn_previous_alias_decl : Warning<"previously declared alias is ignored">;
def err_conflicting_aliasing_type : Error<"conflicting types for alias %0">;
def warn_undef_interface : Warning<"cannot find interface declaration for %0">;
def warn_duplicate_protocol_def : Warning<"duplicate protocol definition of %0 is ignored">;
def err_protocol_has_circular_dependency : Error<
  "protocol has circular dependency">;
def err_undeclared_protocol : Error<"cannot find protocol declaration for %0">;
def warn_undef_protocolref : Warning<"cannot find protocol definition for %0">;
def warn_readonly_property : Warning<
  "attribute 'readonly' of property %0 restricts attribute "
  "'readwrite' of property inherited from %1">;

def warn_property_attribute : Warning<
  "'%1' attribute on property %0 does not match the property inherited from %2">;
def warn_property_types_are_incompatible : Warning<
  "property type %0 is incompatible with type %1 inherited from %2">;
def err_undef_interface : Error<"cannot find interface declaration for %0">;
def err_category_forward_interface : Error<
  "cannot define %select{category|class extension}0 for undefined class %1">;
def err_class_extension_after_impl : Error<
  "cannot declare class extension for %0 after class implementation">;
def note_implementation_declared : Note<
  "class implementation is declared here">;
def note_while_in_implementation : Note<
  "detected while default synthesizing properties in class implementation">;
def note_class_declared : Note<
  "class is declared here">;
def note_receiver_is_id : Note<
  "receiver is treated with 'id' type for purpose of method lookup">;
def note_suppressed_class_declare : Note<
  "class with specified objc_requires_property_definitions attribute is declared here">;
def err_objc_root_class_subclass : Error<
  "objc_root_class attribute may only be specified on a root class declaration">;
def warn_objc_root_class_missing : Warning<
	"class %0 defined without specifying a base class">,
  InGroup<ObjCRootClass>;
def note_objc_needs_superclass : Note<
  "add a super class to fix this problem">;
def warn_dup_category_def : Warning<
  "duplicate definition of category %1 on interface %0">;
def err_conflicting_super_class : Error<"conflicting super class name %0">;
def err_dup_implementation_class : Error<"reimplementation of class %0">;
def err_dup_implementation_category : Error<
  "reimplementation of category %1 for class %0">;
def err_conflicting_ivar_type : Error<
  "instance variable %0 has conflicting type%diff{: $ vs $|}1,2">;
def err_duplicate_ivar_declaration : Error<
  "instance variable is already declared">;
def warn_on_superclass_use : Warning<
  "class implementation may not have super class">;
def err_conflicting_ivar_bitwidth : Error<
  "instance variable %0 has conflicting bit-field width">;
def err_conflicting_ivar_name : Error<
  "conflicting instance variable names: %0 vs %1">;
def err_inconsistant_ivar_count : Error<
  "inconsistent number of instance variables specified">;
def warn_undef_method_impl : Warning<"method definition for %0 not found">,
  InGroup<DiagGroup<"incomplete-implementation">>;
def note_required_for_protocol_at : 
  Note<"required for direct or indirect protocol %0">;

def warn_conflicting_overriding_ret_types : Warning<
  "conflicting return type in "
  "declaration of %0%diff{: $ vs $|}1,2">,
  InGroup<OverridingMethodMismatch>, DefaultIgnore;

def warn_conflicting_ret_types : Warning<
  "conflicting return type in "
  "implementation of %0%diff{: $ vs $|}1,2">,
  InGroup<MismatchedReturnTypes>;

def warn_conflicting_overriding_ret_type_modifiers : Warning<
  "conflicting distributed object modifiers on return type "
  "in declaration of %0">,
  InGroup<OverridingMethodMismatch>, DefaultIgnore;

def warn_conflicting_ret_type_modifiers : Warning<
  "conflicting distributed object modifiers on return type "
  "in implementation of %0">,
  InGroup<DistributedObjectModifiers>;

def warn_non_covariant_overriding_ret_types : Warning<
  "conflicting return type in "
  "declaration of %0: %1 vs %2">,
  InGroup<OverridingMethodMismatch>, DefaultIgnore;

def warn_non_covariant_ret_types : Warning<
  "conflicting return type in "
  "implementation of %0: %1 vs %2">,
  InGroup<MethodSignatures>, DefaultIgnore;

def warn_conflicting_overriding_param_types : Warning<
  "conflicting parameter types in "
  "declaration of %0%diff{: $ vs $|}1,2">,
  InGroup<OverridingMethodMismatch>, DefaultIgnore;

def warn_conflicting_param_types : Warning<
  "conflicting parameter types in "
  "implementation of %0%diff{: $ vs $|}1,2">,
  InGroup<MismatchedParameterTypes>;

def warn_conflicting_param_modifiers : Warning<
  "conflicting distributed object modifiers on parameter type "
  "in implementation of %0">,
  InGroup<DistributedObjectModifiers>;

def warn_conflicting_overriding_param_modifiers : Warning<
  "conflicting distributed object modifiers on parameter type "
  "in declaration of %0">,
  InGroup<OverridingMethodMismatch>, DefaultIgnore;

def warn_non_contravariant_overriding_param_types : Warning<
  "conflicting parameter types in "
  "declaration of %0: %1 vs %2">,
  InGroup<OverridingMethodMismatch>, DefaultIgnore;

def warn_non_contravariant_param_types : Warning<
  "conflicting parameter types in "
  "implementation of %0: %1 vs %2">,
  InGroup<MethodSignatures>, DefaultIgnore;

def warn_conflicting_overriding_variadic :Warning<
  "conflicting variadic declaration of method and its "
  "implementation">,
  InGroup<OverridingMethodMismatch>, DefaultIgnore;

def warn_conflicting_variadic :Warning<
  "conflicting variadic declaration of method and its "
  "implementation">;

def warn_category_method_impl_match:Warning<
  "category is implementing a method which will also be implemented"
  " by its primary class">, InGroup<ObjCProtocolMethodImpl>;

def warn_implements_nscopying : Warning<
"default assign attribute on property %0 which implements "
"NSCopying protocol is not appropriate with -fobjc-gc[-only]">;

def warn_multiple_method_decl : Warning<"multiple methods named %0 found">;
def warn_strict_multiple_method_decl : Warning<
  "multiple methods named %0 found">, InGroup<StrictSelector>, DefaultIgnore;
def warn_accessor_property_type_mismatch : Warning<
  "type of property %0 does not match type of accessor %1">;
def not_conv_function_declared_at : Note<"type conversion function declared here">;
def note_method_declared_at : Note<"method %0 declared here">;
def note_property_attribute : Note<"property %0 is declared "
  "%select{deprecated|unavailable}1 here">;
def err_setter_type_void : Error<"type of setter must be void">;
def err_duplicate_method_decl : Error<"duplicate declaration of method %0">;
def warn_duplicate_method_decl : 
  Warning<"multiple declarations of method %0 found and ignored">, 
  InGroup<MethodDuplicate>, DefaultIgnore;
def err_objc_var_decl_inclass : 
    Error<"cannot declare variable inside @interface or @protocol">;
def error_missing_method_context : Error<
  "missing context for method declaration">;
def err_objc_property_attr_mutually_exclusive : Error<
  "property attributes '%0' and '%1' are mutually exclusive">;
def err_objc_property_requires_object : Error<
  "property with '%0' attribute must be of object type">;
def warn_objc_property_no_assignment_attribute : Warning<
  "no 'assign', 'retain', or 'copy' attribute is specified - "
  "'assign' is assumed">,
  InGroup<ObjCPropertyNoAttribute>;
def warn_objc_isa_use : Warning<
  "direct access to Objective-C's isa is deprecated in favor of "
  "object_getClass()">, InGroup<DeprecatedObjCIsaUsage>;
def warn_objc_isa_assign : Warning<
  "assignment to Objective-C's isa is deprecated in favor of "
  "object_setClass()">, InGroup<DeprecatedObjCIsaUsage>;
def warn_objc_property_default_assign_on_object : Warning<
  "default property attribute 'assign' not appropriate for non-GC object">,
  InGroup<ObjCPropertyNoAttribute>;
def warn_property_attr_mismatch : Warning<
  "property attribute in class extension does not match the primary class">;
def warn_objc_property_copy_missing_on_block : Warning<
    "'copy' attribute must be specified for the block property "
    "when -fobjc-gc-only is specified">;
def warn_objc_property_retain_of_block : Warning<
    "retain'ed block property does not copy the block "
    "- use copy attribute instead">, InGroup<ObjCRetainBlockProperty>;
def warn_objc_readonly_property_has_setter : Warning<
    "setter cannot be specified for a readonly property">,
    InGroup<ObjCReadonlyPropertyHasSetter>;
def warn_atomic_property_rule : Warning<
  "writable atomic property %0 cannot pair a synthesized %select{getter|setter}1 "
  "with a user defined %select{getter|setter}2">,
  InGroup<DiagGroup<"atomic-property-with-user-defined-accessor">>;
def note_atomic_property_fixup_suggest : Note<"setter and getter must both be "
  "synthesized, or both be user defined,or the property must be nonatomic">;
def err_atomic_property_nontrivial_assign_op : Error<
  "atomic property of reference type %0 cannot have non-trivial assignment"
  " operator">;
def warn_owning_getter_rule : Warning<
  "property's synthesized getter follows Cocoa naming"
  " convention for returning 'owned' objects">,
  InGroup<DiagGroup<"objc-property-matches-cocoa-ownership-rule">>;
def warn_auto_synthesizing_protocol_property :Warning<
  "auto property synthesis will not synthesize property"
  " declared in a protocol">,
  InGroup<DiagGroup<"objc-protocol-property-synthesis">>;
def warn_no_autosynthesis_shared_ivar_property : Warning <
  "auto property synthesis will not synthesize property "
  "'%0' because it cannot share an ivar with another synthesized property">,
  InGroup<ObjCNoPropertyAutoSynthesis>;
def warn_no_autosynthesis_property : Warning<
  "auto property synthesis will not synthesize property "
  "'%0' because it is 'readwrite' but it will be synthesized 'readonly' "
  "via another property">,
  InGroup<ObjCNoPropertyAutoSynthesis>;
def warn_autosynthesis_property_ivar_match :Warning<
  "autosynthesized property %0 will use %select{|synthesized}1 instance variable "
  "%2, not existing instance variable %3">,
  InGroup<DiagGroup<"objc-autosynthesis-property-ivar-name-match">>;
def warn_missing_explicit_synthesis : Warning <
  "auto property synthesis is synthesizing property not explicitly synthesized">,
  InGroup<DiagGroup<"objc-missing-property-synthesis">>, DefaultIgnore;
def warn_property_getter_owning_mismatch : Warning<
  "property declared as returning non-retained objects"
  "; getter returning retained objects">;
def error_property_setter_ambiguous_use : Error<
  "synthesized properties '%0' and '%1' both claim setter %2 -"
  " use of this setter will cause unexpected behavior">;
def err_ownin_getter_rule : Error<
  "property's synthesized getter follows Cocoa naming"
  " convention for returning 'owned' objects">;
def warn_default_atomic_custom_getter_setter : Warning<
  "atomic by default property %0 has a user defined %select{getter|setter}1 "
  "(property should be marked 'atomic' if this is intended)">,
  InGroup<CustomAtomic>, DefaultIgnore;
def err_use_continuation_class : Error<
  "illegal redeclaration of property in class extension %0"
  " (attribute must be 'readwrite', while its primary must be 'readonly')">;
def err_type_mismatch_continuation_class : Error<
  "type of property %0 in class extension does not match "
  "property type in primary class">;
def err_use_continuation_class_redeclaration_readwrite : Error<
  "illegal redeclaration of 'readwrite' property in class extension %0"
  " (perhaps you intended this to be a 'readwrite' redeclaration of a "
  "'readonly' public property?)">;
def err_continuation_class : Error<"class extension has no primary class">;
def err_property_type : Error<"property cannot have array or function type %0">;
def error_missing_property_context : Error<
  "missing context for property implementation declaration">;
def error_bad_property_decl : Error<
  "property implementation must have its declaration in interface %0">;
def error_category_property : Error<
  "property declared in category %0 cannot be implemented in "
  "class implementation">;
def note_property_declare : Note<
  "property declared here">;
def note_property_synthesize : Note<
  "property synthesized here">;
def error_synthesize_category_decl : Error<
  "@synthesize not allowed in a category's implementation">;
def error_reference_property : Error<
  "property of reference type is not supported">;
def error_missing_property_interface : Error<
  "property implementation in a category with no category declaration">;
def error_bad_category_property_decl : Error<
  "property implementation must have its declaration in the category %0">;
def error_bad_property_context : Error<
  "property implementation must be in a class or category implementation">;
def error_missing_property_ivar_decl : Error<
  "synthesized property %0 must either be named the same as a compatible"
  " instance variable or must explicitly name an instance variable">;
def error_synthesize_weak_non_arc_or_gc : Error<
  "@synthesize of 'weak' property is only allowed in ARC or GC mode">;
def err_arc_perform_selector_retains : Error<
  "performSelector names a selector which retains the object">;
def warn_arc_perform_selector_leaks : Warning<
  "performSelector may cause a leak because its selector is unknown">,
  InGroup<DiagGroup<"arc-performSelector-leaks">>;
def err_gc_weak_property_strong_type : Error<
  "weak attribute declared on a __strong type property in GC mode">;
def warn_receiver_is_weak : Warning <
  "weak %select{receiver|property|implicit property}0 may be "
  "unpredictably set to nil">,
  InGroup<DiagGroup<"receiver-is-weak">>, DefaultIgnore;
def note_arc_assign_to_strong : Note<
  "assign the value to a strong variable to keep the object alive during use">;
def warn_arc_repeated_use_of_weak : Warning <
  "weak %select{variable|property|implicit property|instance variable}0 %1 is "
  "accessed multiple times in this %select{function|method|block|lambda}2 "
  "but may be unpredictably set to nil; assign to a strong variable to keep "
  "the object alive">,
  InGroup<ARCRepeatedUseOfWeak>, DefaultIgnore;
def warn_implicitly_retains_self : Warning <
  "block implicitly retains 'self'; explicitly mention 'self' to indicate "
  "this is intended behavior">,
  InGroup<DiagGroup<"implicit-retain-self">>, DefaultIgnore;
def warn_arc_possible_repeated_use_of_weak : Warning <
  "weak %select{variable|property|implicit property|instance variable}0 %1 may "
  "be accessed multiple times in this %select{function|method|block|lambda}2 "
  "and may be unpredictably set to nil; assign to a strong variable to keep "
  "the object alive">,
  InGroup<ARCRepeatedUseOfWeakMaybe>, DefaultIgnore;
def note_arc_weak_also_accessed_here : Note<
  "also accessed here">;
def err_incomplete_synthesized_property : Error<
  "cannot synthesize property %0 with incomplete type %1">;

def error_property_ivar_type : Error<
  "type of property %0 (%1) does not match type of instance variable %2 (%3)">;
def error_property_accessor_type : Error<
  "type of property %0 (%1) does not match type of accessor %2 (%3)">;
def error_ivar_in_superclass_use : Error<
  "property %0 attempting to use instance variable %1 declared in super class %2">;
def error_weak_property : Error<
  "existing instance variable %1 for __weak property %0 must be __weak">;
def error_strong_property : Error<
  "existing instance variable %1 for strong property %0 may not be __weak">;
def error_dynamic_property_ivar_decl : Error<
  "dynamic property can not have instance variable specification">;
def error_duplicate_ivar_use : Error<
  "synthesized properties %0 and %1 both claim instance variable %2">;
def error_property_implemented : Error<"property %0 is already implemented">;
def warn_objc_property_attr_mutually_exclusive : Warning<
  "property attributes '%0' and '%1' are mutually exclusive">,
  InGroup<ReadOnlySetterAttrs>, DefaultIgnore;
def warn_objc_missing_super_call : Warning<
  "method possibly missing a [super %0] call">,
  InGroup<ObjCMissingSuperCalls>;
def error_dealloc_bad_result_type : Error<
  "dealloc return type must be correctly specified as 'void' under ARC, "
  "instead of %0">;
def warn_undeclared_selector : Warning<
  "undeclared selector %0">, InGroup<UndeclaredSelector>, DefaultIgnore;
def warn_implicit_atomic_property : Warning<
  "property is assumed atomic by default">, InGroup<ImplicitAtomic>, DefaultIgnore;
def note_auto_readonly_iboutlet_fixup_suggest : Note<
  "property should be changed to be readwrite">;
def warn_auto_readonly_iboutlet_property : Warning<
  "readonly IBOutlet property '%0' when auto-synthesized may "
  "not work correctly with 'nib' loader">,
  InGroup<DiagGroup<"readonly-iboutlet-property">>;
def warn_auto_implicit_atomic_property : Warning<
  "property is assumed atomic when auto-synthesizing the property">, 
  InGroup<ImplicitAtomic>, DefaultIgnore;
def warn_unimplemented_selector:  Warning<
  "unimplemented selector %0">, InGroup<Selector>, DefaultIgnore;
def warn_unimplemented_protocol_method : Warning<
  "method %0 in protocol not implemented">, InGroup<Protocol>;

// C++ declarations
def err_static_assert_expression_is_not_constant : Error<
  "static_assert expression is not an integral constant expression">;
def err_static_assert_failed : Error<"static_assert failed %0">;

def warn_inline_namespace_reopened_noninline : Warning<
  "inline namespace cannot be reopened as a non-inline namespace">;
def err_inline_namespace_mismatch : Error<
  "%select{|non-}0inline namespace "
  "cannot be reopened as %select{non-|}0inline">;

def err_unexpected_friend : Error<
  "friends can only be classes or functions">;
def ext_enum_friend : ExtWarn<
  "enumeration type %0 cannot be a friend">;
def warn_cxx98_compat_enum_friend : Warning<
  "befriending enumeration type %0 is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def ext_nonclass_type_friend : ExtWarn<
  "non-class friend type %0 is a C++11 extension">, InGroup<CXX11>;
def warn_cxx98_compat_nonclass_type_friend : Warning<
  "non-class friend type %0 is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_friend_is_member : Error<
  "friends cannot be members of the declaring class">;
def warn_cxx98_compat_friend_is_member : Warning<
  "friend declaration naming a member of the declaring class is incompatible "
  "with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
def ext_unelaborated_friend_type : ExtWarn<
  "unelaborated friend declaration is a C++11 extension; specify "
  "'%select{struct|interface|union|class|enum}0' to befriend %1">,
  InGroup<CXX11>;
def warn_cxx98_compat_unelaborated_friend_type : Warning<
  "befriending %1 without '%select{struct|interface|union|class|enum}0' "
  "keyword is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
def err_qualified_friend_not_found : Error<
  "no function named %0 with type %1 was found in the specified scope">;
def err_introducing_special_friend : Error<
  "must use a qualified name when declaring a %select{constructor|"
  "destructor|conversion operator}0 as a friend">;
def err_tagless_friend_type_template : Error<
  "friend type templates must use an elaborated type">;
def err_no_matching_local_friend : Error<
  "no matching function found in local scope">;
def err_no_matching_local_friend_suggest : Error<
  "no matching function %0 found in local scope; did you mean %2?">;
def err_partial_specialization_friend : Error<
  "partial specialization cannot be declared as a friend">;
def err_qualified_friend_def : Error<
  "friend function definition cannot be qualified with '%0'">;
def err_friend_def_in_local_class : Error<
  "friend function cannot be defined in a local class">;
def err_friend_not_first_in_declaration : Error<
  "'friend' must appear first in a non-function declaration">;
def err_using_decl_friend : Error<
  "cannot befriend target of using declaration">;
  
def err_invalid_member_in_interface : Error<
  "%select{data member |non-public member function |static member function |"
          "user-declared constructor|user-declared destructor|operator |"
          "nested class }0%1 is not permitted within an interface type">;
def err_invalid_base_in_interface : Error<
  "interface type cannot inherit from "
  "%select{'struct|non-public 'interface|'class}0 %1'">;

def err_abstract_type_in_decl : Error<
  "%select{return|parameter|variable|field|instance variable}0 type %1 is an abstract class">;
def err_allocation_of_abstract_type : Error<
  "allocating an object of abstract class type %0">;
def err_throw_abstract_type : Error<
  "cannot throw an object of abstract type %0">;
def err_array_of_abstract_type : Error<"array of abstract class type %0">;

def err_multiple_final_overriders : Error<
  "virtual function %q0 has more than one final overrider in %1">; 
def note_final_overrider : Note<"final overrider of %q0 in %1">;

def err_type_defined_in_type_specifier : Error<
  "%0 can not be defined in a type specifier">;
def err_type_defined_in_result_type : Error<
  "%0 can not be defined in the result type of a function">;
def err_type_defined_in_param_type : Error<
  "%0 can not be defined in a parameter type">;
def err_type_defined_in_alias_template : Error<
  "%0 can not be defined in a type alias template">;

def note_pure_virtual_function : Note<
  "unimplemented pure virtual method %0 in %1">;

def err_deleted_decl_not_first : Error<
  "deleted definition must be first declaration">;

def err_deleted_override : Error<
  "deleted function %0 cannot override a non-deleted function">;

def err_non_deleted_override : Error<
  "non-deleted function %0 cannot override a deleted function">;

def warn_weak_vtable : Warning<
  "%0 has no out-of-line virtual method definitions; its vtable will be "
  "emitted in every translation unit">,
  InGroup<DiagGroup<"weak-vtables">>, DefaultIgnore;
def warn_weak_template_vtable : Warning<
  "explicit template instantiation %0 will emit a vtable in every "
  "translation unit">,
  InGroup<DiagGroup<"weak-template-vtables">>, DefaultIgnore;

def ext_using_undefined_std : ExtWarn<
  "using directive refers to implicitly-defined namespace 'std'">;
  
// C++ exception specifications
def err_exception_spec_in_typedef : Error<
  "exception specifications are not allowed in %select{typedefs|type aliases}0">;
def err_distant_exception_spec : Error<
  "exception specifications are not allowed beyond a single level "
  "of indirection">;
def err_incomplete_in_exception_spec : Error<
  "%select{|pointer to |reference to }0incomplete type %1 is not allowed "
  "in exception specification">;
def err_rref_in_exception_spec : Error<
  "rvalue reference type %0 is not allowed in exception specification">;
def err_mismatched_exception_spec : Error<
  "exception specification in declaration does not match previous declaration">;
def warn_mismatched_exception_spec : ExtWarn<
  "exception specification in declaration does not match previous declaration">;
def err_override_exception_spec : Error<
  "exception specification of overriding function is more lax than "
  "base version">;
def warn_override_exception_spec : ExtWarn<
  "exception specification of overriding function is more lax than "
  "base version">, InGroup<Microsoft>;
def err_incompatible_exception_specs : Error<
  "target exception specification is not superset of source">;
def err_deep_exception_specs_differ : Error<
  "exception specifications of %select{return|argument}0 types differ">;
def warn_missing_exception_specification : Warning<
  "%0 is missing exception specification '%1'">;
def err_noexcept_needs_constant_expression : Error<
  "argument to noexcept specifier must be a constant expression">;

// C++ access checking
def err_class_redeclared_with_different_access : Error<
  "%0 redeclared with '%1' access">;
def err_access : Error<
  "%1 is a %select{private|protected}0 member of %3">, AccessControl;
def ext_ms_using_declaration_inaccessible : ExtWarn<
  "using declaration referring to inaccessible member '%0' (which refers "
  "to accessible member '%1') is a Microsoft compatibility extension">,
    AccessControl, InGroup<Microsoft>;
def err_access_ctor : Error<
  "calling a %select{private|protected}0 constructor of class %2">, 
  AccessControl;
def ext_rvalue_to_reference_access_ctor : ExtWarn<
  "C++98 requires an accessible copy constructor for class %2 when binding "
  "a reference to a temporary; was %select{private|protected}0">,
  AccessControl, InGroup<BindToTemporaryCopy>;
def err_access_base_ctor : Error<
  // The ERRORs represent other special members that aren't constructors, in
  // hopes that someone will bother noticing and reporting if they appear
  "%select{base class|inherited virtual base class}0 %1 has %select{private|"
  "protected}3 %select{default |copy |move |*ERROR* |*ERROR* "
  "|*ERROR*|}2constructor">, AccessControl;
def err_access_field_ctor : Error<
  // The ERRORs represent other special members that aren't constructors, in
  // hopes that someone will bother noticing and reporting if they appear
  "field of type %0 has %select{private|protected}2 "
  "%select{default |copy |move |*ERROR* |*ERROR* |*ERROR* |}1constructor">,
  AccessControl;
def err_access_friend_function : Error<
  "friend function %1 is a %select{private|protected}0 member of %3">,
  AccessControl;

def err_access_dtor : Error<
  "calling a %select{private|protected}1 destructor of class %0">, 
  AccessControl;
def err_access_dtor_base :
    Error<"base class %0 has %select{private|protected}1 destructor">,
    AccessControl;
def err_access_dtor_vbase :
    Error<"inherited virtual base class %0 has "
    "%select{private|protected}1 destructor">,
    AccessControl;
def err_access_dtor_temp :
    Error<"temporary of type %0 has %select{private|protected}1 destructor">,
    AccessControl;
def err_access_dtor_exception :
    Error<"exception object of type %0 has %select{private|protected}1 "
          "destructor">, AccessControl;
def err_access_dtor_field :
    Error<"field of type %1 has %select{private|protected}2 destructor">,
    AccessControl;
def err_access_dtor_var :
    Error<"variable of type %1 has %select{private|protected}2 destructor">,
    AccessControl;
def err_access_dtor_ivar :
    Error<"instance variable of type %0 has %select{private|protected}1 "
          "destructor">,
    AccessControl;
def note_previous_access_declaration : Note<
  "previously declared '%1' here">;
def note_access_natural : Note<
  "%select{|implicitly }1declared %select{private|protected}0 here">;
def note_access_constrained_by_path : Note<
  "constrained by %select{|implicitly }1%select{private|protected}0"
  " inheritance here">;
def note_access_protected_restricted_noobject : Note<
  "must name member using the type of the current context %0">;
def note_access_protected_restricted_ctordtor : Note<
  "protected %select{constructor|destructor}0 can only be used to "
  "%select{construct|destroy}0 a base class subobject">;
def note_access_protected_restricted_object : Note<
  "can only access this member on an object of type %0">;
def warn_cxx98_compat_sfinae_access_control : Warning<
  "substitution failure due to access control is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore, NoSFINAE;
  
// C++ name lookup
def err_incomplete_nested_name_spec : Error<
  "incomplete type %0 named in nested name specifier">;
def err_dependent_nested_name_spec : Error<
  "nested name specifier for a declaration cannot depend on a template "
  "parameter">;
def err_nested_name_member_ref_lookup_ambiguous : Error<
  "lookup of %0 in member access expression is ambiguous">;
def ext_nested_name_member_ref_lookup_ambiguous : ExtWarn<
  "lookup of %0 in member access expression is ambiguous; using member of %1">,
  InGroup<AmbigMemberTemplate>;
def note_ambig_member_ref_object_type : Note<
  "lookup in the object type %0 refers here">;
def note_ambig_member_ref_scope : Note<
  "lookup from the current scope refers here">;
def err_qualified_member_nonclass : Error<
  "qualified member access refers to a member in %0">;
def err_incomplete_member_access : Error<
  "member access into incomplete type %0">;
def err_incomplete_type : Error<
  "incomplete type %0 where a complete type is required">;
def warn_cxx98_compat_enum_nested_name_spec : Warning<
  "enumeration type in nested name specifier is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
  
// C++ class members
def err_storageclass_invalid_for_member : Error<
  "storage class specified for a member declaration">;
def err_mutable_function : Error<"'mutable' cannot be applied to functions">;
def err_mutable_reference : Error<"'mutable' cannot be applied to references">;
def err_mutable_const : Error<"'mutable' and 'const' cannot be mixed">;
def err_mutable_nonmember : Error<
  "'mutable' can only be applied to member variables">;
def err_virtual_non_function : Error<
  "'virtual' can only appear on non-static member functions">;
def err_virtual_out_of_class : Error<
  "'virtual' can only be specified inside the class definition">;
def err_virtual_member_function_template : Error<
  "'virtual' can not be specified on member function templates">;
def err_static_overrides_virtual : Error<
  "'static' member function %0 overrides a virtual function in a base class">;
def err_explicit_non_function : Error<
  "'explicit' can only appear on non-static member functions">;
def err_explicit_out_of_class : Error<
  "'explicit' can only be specified inside the class definition">;
def err_explicit_non_ctor_or_conv_function : Error<
  "'explicit' can only be applied to a constructor or conversion function">;
def err_static_not_bitfield : Error<"static member %0 cannot be a bit-field">;
def err_static_out_of_line : Error<
  "'static' can only be specified inside the class definition">;
def err_typedef_not_bitfield : Error<"typedef member %0 cannot be a bit-field">;
def err_not_integral_type_bitfield : Error<
  "bit-field %0 has non-integral type %1">;
def err_not_integral_type_anon_bitfield : Error<
  "anonymous bit-field has non-integral type %0">;
def err_member_function_initialization : Error<
  "initializer on function does not look like a pure-specifier">;
def err_non_virtual_pure : Error<
  "%0 is not virtual and cannot be declared pure">;
def warn_pure_function_definition : ExtWarn<
  "function definition with pure-specifier is a Microsoft extension">,
  InGroup<Microsoft>;
def err_implicit_object_parameter_init : Error<
  "cannot initialize object parameter of type %0 with an expression "
  "of type %1">;
def err_qualified_member_of_unrelated : Error<
  "%q0 is not a member of class %1">;

def warn_call_to_pure_virtual_member_function_from_ctor_dtor : Warning<
  "call to pure virtual member function %0; overrides of %0 in subclasses are "
  "not available in the %select{constructor|destructor}1 of %2">;

def note_field_decl : Note<"member is declared here">;
def note_ivar_decl : Note<"instance variable is declared here">;
def note_bitfield_decl : Note<"bit-field is declared here">;
def note_previous_decl : Note<"%0 declared here">;
def note_implicit_param_decl : Note<"%0 is an implicit parameter">;
def note_member_synthesized_at : Note<
  "implicit default %select{constructor|copy constructor|move constructor|copy "
  "assignment operator|move assignment operator|destructor}0 for %1 first "
  "required here">;
def note_inhctor_synthesized_at : Note<
  "inheriting constructor for %0 first required here">;
def err_missing_default_ctor : Error<
  "%select{|implicit default |inheriting }0constructor for %1 must explicitly "
  "initialize the %select{base class|member}2 %3 which does not have a default "
  "constructor">;

def err_illegal_union_or_anon_struct_member : Error<
  "%select{anonymous struct|union}0 member %1 has a non-trivial "
  "%select{constructor|copy constructor|move constructor|copy assignment "
  "operator|move assignment operator|destructor}2">;
def warn_cxx98_compat_nontrivial_union_or_anon_struct_member : Warning<
  "%select{anonymous struct|union}0 member %1 with a non-trivial "
  "%select{constructor|copy constructor|move constructor|copy assignment "
  "operator|move assignment operator|destructor}2 is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;

def note_nontrivial_virtual_dtor : Note<
  "destructor for %0 is not trivial because it is virtual">;
def note_nontrivial_has_virtual : Note<
  "because type %0 has a virtual %select{member function|base class}1">;
def note_nontrivial_no_def_ctor : Note<
  "because %select{base class of |field of |}0type %1 has no "
  "default constructor">;
def note_user_declared_ctor : Note<
  "implicit default constructor suppressed by user-declared constructor">;
def note_nontrivial_no_copy : Note<
  "because no %select{<<ERROR>>|constructor|constructor|assignment operator|"
  "assignment operator|<<ERROR>>}2 can be used to "
  "%select{<<ERROR>>|copy|move|copy|move|<<ERROR>>}2 "
  "%select{base class|field|an object}0 of type %3">;
def note_nontrivial_user_provided : Note<
  "because %select{base class of |field of |}0type %1 has a user-provided "
  "%select{default constructor|copy constructor|move constructor|"
  "copy assignment operator|move assignment operator|destructor}2">;
def note_nontrivial_in_class_init : Note<
  "because field %0 has an initializer">;
def note_nontrivial_param_type : Note<
  "because its parameter is %diff{of type $, not $|of the wrong type}2,3">;
def note_nontrivial_default_arg : Note<"because it has a default argument">;
def note_nontrivial_variadic : Note<"because it is a variadic function">;
def note_nontrivial_subobject : Note<
  "because the function selected to %select{construct|copy|move|copy|move|"
  "destroy}2 %select{base class|field}0 of type %1 is not trivial">;
def note_nontrivial_objc_ownership : Note<
  "because type %0 has a member with %select{no|no|__strong|__weak|"
  "__autoreleasing}1 ownership">;

def err_static_data_member_not_allowed_in_anon_struct : Error<
  "static data member %0 not allowed in anonymous struct">;
def ext_static_data_member_in_union : ExtWarn<
  "static data member %0 in union is a C++11 extension">, InGroup<CXX11>;
def warn_cxx98_compat_static_data_member_in_union : Warning<
  "static data member %0 in union is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_union_member_of_reference_type : Error<
  "union member %0 has reference type %1">;
def ext_anonymous_struct_union_qualified : Extension<
  "anonymous %select{struct|union}0 cannot be '%1'">;
def err_different_return_type_for_overriding_virtual_function : Error<
  "virtual function %0 has a different return type "
  "%diff{($) than the function it overrides (which has return type $)|"
  "than the function it overrides}1,2">;
def note_overridden_virtual_function : Note<
  "overridden virtual function is here">;
def err_conflicting_overriding_cc_attributes : Error<
  "virtual function %0 has different calling convention attributes "
  "%diff{($) than the function it overrides (which has calling convention $)|"
  "than the function it overrides}1,2">;

def err_covariant_return_inaccessible_base : Error<
  "invalid covariant return for virtual function: %1 is a "
  "%select{private|protected}2 base class of %0">, AccessControl;
def err_covariant_return_ambiguous_derived_to_base_conv : Error<
  "return type of virtual function %3 is not covariant with the return type of "
  "the function it overrides (ambiguous conversion from derived class "
  "%0 to base class %1:%2)">;
def err_covariant_return_not_derived : Error<
  "return type of virtual function %0 is not covariant with the return type of "
  "the function it overrides (%1 is not derived from %2)">;
def err_covariant_return_incomplete : Error<
  "return type of virtual function %0 is not covariant with the return type of "
  "the function it overrides (%1 is incomplete)">;
def err_covariant_return_type_different_qualifications : Error<
  "return type of virtual function %0 is not covariant with the return type of "
  "the function it overrides (%1 has different qualifiers than %2)">;
def err_covariant_return_type_class_type_more_qualified : Error<
  "return type of virtual function %0 is not covariant with the return type of "
  "the function it overrides (class type %1 is more qualified than class "
  "type %2">;
  
// C++ constructors
def err_constructor_cannot_be : Error<"constructor cannot be declared '%0'">;
def err_invalid_qualified_constructor : Error<
  "'%0' qualifier is not allowed on a constructor">;
def err_ref_qualifier_constructor : Error<
  "ref-qualifier '%select{&&|&}0' is not allowed on a constructor">;

def err_constructor_return_type : Error<
  "constructor cannot have a return type">;
def err_constructor_redeclared : Error<"constructor cannot be redeclared">;
def err_constructor_byvalue_arg : Error<
  "copy constructor must pass its first argument by reference">;
def warn_no_constructor_for_refconst : Warning<
  "%select{struct|interface|union|class|enum}0 %1 does not declare any "
  "constructor to initialize its non-modifiable members">;
def note_refconst_member_not_initialized : Note<
  "%select{const|reference}0 member %1 will never be initialized">;
def ext_ms_explicit_constructor_call : ExtWarn<
  "explicit constructor calls are a Microsoft extension">, InGroup<Microsoft>;

// C++ destructors
def err_destructor_not_member : Error<
  "destructor must be a non-static member function">;
def err_destructor_cannot_be : Error<"destructor cannot be declared '%0'">;
def err_invalid_qualified_destructor : Error<
  "'%0' qualifier is not allowed on a destructor">;
def err_ref_qualifier_destructor : Error<
  "ref-qualifier '%select{&&|&}0' is not allowed on a destructor">;
def err_destructor_return_type : Error<"destructor cannot have a return type">;
def err_destructor_redeclared : Error<"destructor cannot be redeclared">;
def err_destructor_with_params : Error<"destructor cannot have any parameters">;
def err_destructor_variadic : Error<"destructor cannot be variadic">;
def err_destructor_typedef_name : Error<
  "destructor cannot be declared using a %select{typedef|type alias}1 %0 of the class name">;
def err_destructor_name : Error<
  "expected the class name after '~' to name the enclosing class">;
def err_destructor_class_name : Error<
  "expected the class name after '~' to name a destructor">;
def err_ident_in_dtor_not_a_type : Error<
  "identifier %0 in object destruction expression does not name a type">;
def err_destructor_expr_type_mismatch : Error<
  "destructor type %0 in object destruction expression does not match the "
  "type %1 of the object being destroyed">;
def note_destructor_type_here : Note<
  "type %0 is declared here">;

def err_destructor_template : Error<
  "destructor cannot be declared as a template">;

// C++ initialization
def err_init_conversion_failed : Error<
  "cannot initialize %select{a variable|a parameter|return object|an "
  "exception object|a member subobject|an array element|a new value|a value|a "
  "base class|a constructor delegation|a vector element}0 "
  "%diff{of type $ with an %select{rvalue|lvalue}2 of type $|"
  "with an %select{rvalue|lvalue}2 of incompatible type}1,3"
  "%select{|: different classes%diff{ ($ vs $)|}5,6"
  "|: different number of parameters (%5 vs %6)"
  "|: type mismatch at %ordinal5 parameter%diff{ ($ vs $)|}6,7"
  "|: different return type%diff{ ($ vs $)|}5,6"
  "|: different qualifiers ("
  "%select{none|const|restrict|const and restrict|volatile|const and volatile|"
  "volatile and restrict|const, volatile, and restrict}5 vs "
  "%select{none|const|restrict|const and restrict|volatile|const and volatile|"
  "volatile and restrict|const, volatile, and restrict}6)}4">;

def err_lvalue_to_rvalue_ref : Error<"rvalue reference %diff{to type $ cannot "
  "bind to lvalue of type $|cannot bind to incompatible lvalue}0,1">;
def err_lvalue_reference_bind_to_initlist : Error<
  "%select{non-const|volatile}0 lvalue reference to type %1 cannot bind to an "
  "initializer list temporary">;
def err_lvalue_reference_bind_to_temporary : Error<
  "%select{non-const|volatile}0 lvalue reference %diff{to type $ cannot bind "
  "to a temporary of type $|cannot bind to incompatible temporary}1,2">;
def err_lvalue_reference_bind_to_unrelated : Error<
  "%select{non-const|volatile}0 lvalue reference "
  "%diff{to type $ cannot bind to a value of unrelated type $|"
  "cannot bind to a value of unrelated type}1,2">;
def err_reference_bind_drops_quals : Error<
  "binding of reference %diff{to type $ to a value of type $ drops qualifiers|"
  "drops qualifiers}0,1">;
def err_reference_bind_failed : Error<
  "reference %diff{to type $ could not bind to an %select{rvalue|lvalue}1 of "
  "type $|could not bind to %select{rvalue|lvalue}1 of incompatible type}0,2">;
def err_reference_bind_init_list : Error<
  "reference to type %0 cannot bind to an initializer list">;
def warn_temporary_array_to_pointer_decay : Warning<
  "pointer is initialized by a temporary array, which will be destroyed at the "
  "end of the full-expression">,
  InGroup<DiagGroup<"address-of-array-temporary">>;
def err_init_list_bad_dest_type : Error<
  "%select{|non-aggregate }0type %1 cannot be initialized with an initializer "
  "list">;
def err_member_function_call_bad_cvr : Error<"member function %0 not viable: "
    "'this' argument has type %1, but function is not marked "
    "%select{const|restrict|const or restrict|volatile|const or volatile|"
    "volatile or restrict|const, volatile, or restrict}2">;

def err_reference_bind_to_bitfield : Error<
  "%select{non-const|volatile}0 reference cannot bind to bit-field %1">;
def err_reference_bind_to_vector_element : Error<
  "%select{non-const|volatile}0 reference cannot bind to vector element">;
def err_reference_var_requires_init : Error<
  "declaration of reference variable %0 requires an initializer">;
def err_reference_without_init : Error<
  "reference to type %0 requires an initializer">;
def note_value_initialization_here : Note<
  "in value-initialization of type %0 here">;
def err_reference_has_multiple_inits : Error<
  "reference cannot be initialized with multiple values">;
def err_init_non_aggr_init_list : Error<
  "initialization of non-aggregate type %0 with an initializer list">;
def err_init_reference_member_uninitialized : Error<
  "reference member of type %0 uninitialized">;
def note_uninit_reference_member : Note<
  "uninitialized reference member is here">;
def warn_field_is_uninit : Warning<"field %0 is uninitialized when used here">,
  InGroup<Uninitialized>;
def warn_reference_field_is_uninit : Warning<
  "reference %0 is not yet bound to a value when used here">,
  InGroup<Uninitialized>;
def warn_static_self_reference_in_init : Warning<
  "static variable %0 is suspiciously used within its own initialization">,
  InGroup<UninitializedStaticSelfInit>;
def warn_uninit_self_reference_in_init : Warning<
  "variable %0 is uninitialized when used within its own initialization">,
  InGroup<Uninitialized>;
def warn_uninit_self_reference_in_reference_init : Warning<
  "reference %0 is not yet bound to a value when used within its own"
  " initialization">,
  InGroup<Uninitialized>;
def warn_uninit_var : Warning<
  "variable %0 is uninitialized when %select{used here|captured by block}1">,
  InGroup<Uninitialized>, DefaultIgnore;
def warn_sometimes_uninit_var : Warning<
  "variable %0 is %select{used|captured}1 uninitialized whenever "
  "%select{'%3' condition is %select{true|false}4|"
  "'%3' loop %select{is entered|exits because its condition is false}4|"
  "'%3' loop %select{condition is true|exits because its condition is false}4|"
  "switch %3 is taken}2">, InGroup<UninitializedSometimes>, DefaultIgnore;
def warn_maybe_uninit_var : Warning<
  "variable %0 may be uninitialized when "
  "%select{used here|captured by block}1">,
  InGroup<UninitializedMaybe>, DefaultIgnore;
def note_uninit_var_def : Note<"variable %0 is declared here">;
def note_uninit_var_use : Note<
  "%select{uninitialized use occurs|variable is captured by block}0 here">;
def warn_uninit_byref_blockvar_captured_by_block : Warning<
  "block pointer variable %0 is uninitialized when captured by block">,
  InGroup<Uninitialized>, DefaultIgnore;
def note_block_var_fixit_add_initialization : Note<
  "maybe you meant to use __block %0">;
def note_var_fixit_add_initialization : Note<
  "initialize the variable %0 to silence this warning">;
def note_uninit_fixit_remove_cond : Note<
  "remove the %select{'%1' if its condition|condition if it}0 "
  "is always %select{false|true}2">;
def err_init_incomplete_type : Error<"initialization of incomplete type %0">;

def warn_unsequenced_mod_mod : Warning<
  "multiple unsequenced modifications to %0">, InGroup<Unsequenced>;
def warn_unsequenced_mod_use : Warning<
  "unsequenced modification and access to %0">, InGroup<Unsequenced>;

def err_temp_copy_no_viable : Error<
  "no viable constructor %select{copying variable|copying parameter|"
  "returning object|throwing object|copying member subobject|copying array "
  "element|allocating object|copying temporary|initializing base subobject|"
  "initializing vector element|capturing value}0 of type %1">;
def ext_rvalue_to_reference_temp_copy_no_viable : ExtWarn<
  "no viable constructor %select{copying variable|copying parameter|"
  "returning object|throwing object|copying member subobject|copying array "
  "element|allocating object|copying temporary|initializing base subobject|"
  "initializing vector element|capturing value}0 of type %1; C++98 requires a copy "
  "constructor when binding a reference to a temporary">,
  InGroup<BindToTemporaryCopy>;
def err_temp_copy_ambiguous : Error<
  "ambiguous constructor call when %select{copying variable|copying "
  "parameter|returning object|throwing object|copying member subobject|copying "
  "array element|allocating object|copying temporary|initializing base subobject|"
  "initializing vector element|capturing value}0 of type %1">;
def err_temp_copy_deleted : Error<
  "%select{copying variable|copying parameter|returning object|throwing "
  "object|copying member subobject|copying array element|allocating object|"
  "copying temporary|initializing base subobject|initializing vector element|"
  "capturing value}0 of type %1 invokes deleted constructor">;
def err_temp_copy_incomplete : Error<
  "copying a temporary object of incomplete type %0">;
def warn_cxx98_compat_temp_copy : Warning<
  "%select{copying variable|copying parameter|returning object|throwing "
  "object|copying member subobject|copying array element|allocating object|"
  "copying temporary|initializing base subobject|initializing vector element}1 "
  "of type %2 when binding a reference to a temporary would %select{invoke "
  "an inaccessible constructor|find no viable constructor|find ambiguous "
  "constructors|invoke a deleted constructor}0 in C++98">,
  InGroup<CXX98CompatBindToTemporaryCopy>, DefaultIgnore;
def err_selected_explicit_constructor : Error<
  "chosen constructor is explicit in copy-initialization">;
def note_constructor_declared_here : Note<
  "constructor declared here">;

// C++11 decltype
def err_decltype_in_declarator : Error<
    "'decltype' cannot be used to name a declaration">;
    
// C++11 auto
def warn_cxx98_compat_auto_type_specifier : Warning<
  "'auto' type specifier is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_auto_variable_cannot_appear_in_own_initializer : Error<
  "variable %0 declared with 'auto' type cannot appear in its own initializer">;
def err_illegal_decl_array_of_auto : Error<
  "'%0' declared as array of %1">;
def err_new_array_of_auto : Error<
  "cannot allocate array of 'auto'">;
def err_auto_not_allowed : Error<
  "'auto' not allowed %select{in function prototype|in non-static struct member"
  "|in non-static union member|in non-static class member|in interface member"
  "|in exception declaration|in template parameter|in block literal"
  "|in template argument|in typedef|in type alias|in function return type"
  "|here}0">;
def err_auto_var_requires_init : Error<
  "declaration of variable %0 with type %1 requires an initializer">;
def err_auto_new_requires_ctor_arg : Error<
  "new expression for type %0 requires a constructor argument">;
def err_auto_new_requires_parens : Error<
  "new expression for type %0 cannot use list-initialization">;
def err_auto_var_init_no_expression : Error<
  "initializer for variable %0 with type %1 is empty">;
def err_auto_var_init_multiple_expressions : Error<
  "initializer for variable %0 with type %1 contains multiple expressions">;
def err_auto_new_ctor_multiple_expressions : Error<
  "new expression for type %0 contains multiple constructor arguments">;
def err_auto_missing_trailing_return : Error<
  "'auto' return without trailing return type">;
def err_trailing_return_without_auto : Error<
  "function with trailing return type must specify return type 'auto', not %0">;
def err_trailing_return_in_parens : Error<
  "trailing return type may not be nested within parentheses">;
def err_auto_var_deduction_failure : Error<
  "variable %0 with type %1 has incompatible initializer of type %2">;
def err_auto_var_deduction_failure_from_init_list : Error<
  "cannot deduce actual type for variable %0 with type %1 from initializer list">;
def err_auto_new_deduction_failure : Error<
  "new expression for type %0 has incompatible constructor argument of type %1">;
def err_auto_different_deductions : Error<
  "'auto' deduced as %0 in declaration of %1 and deduced as %2 in declaration of %3">;
def err_implied_std_initializer_list_not_found : Error<
  "cannot deduce type of initializer list because std::initializer_list was "
  "not found; include <initializer_list>">;
def err_malformed_std_initializer_list : Error<
  "std::initializer_list must be a class template with a single type parameter">;
def warn_dangling_std_initializer_list : Warning<
  "array backing the initializer list will be destroyed at the end of "
  "%select{the full-expression|the constructor}0">,
  InGroup<DiagGroup<"dangling-initializer-list">>;

// C++11 override control
def override_keyword_only_allowed_on_virtual_member_functions : Error<
  "only virtual member functions can be marked '%0'">;
def err_function_marked_override_not_overriding : Error<
  "%0 marked 'override' but does not override any member functions">;
def err_class_marked_final_used_as_base : Error<
  "base %0 is marked 'final'">;
def warn_abstract_final_class : Warning<
  "abstract class is marked 'final'">, InGroup<AbstractFinalClass>;

// C++11 attributes
def err_repeat_attribute : Error<"'%0' attribute cannot be repeated">;

// C++11 final
def err_final_function_overridden : Error<
  "declaration of %0 overrides a 'final' function">;

// C++11 scoped enumerations
def err_enum_invalid_underlying : Error<
  "non-integral type %0 is an invalid underlying type">;
def err_enumerator_too_large : Error<
  "enumerator value is not representable in the underlying type %0">;
def ext_enumerator_too_large : ExtWarn<
  "enumerator value is not representable in the underlying type %0">,
  InGroup<Microsoft>;
def err_enumerator_wrapped : Error<
  "enumerator value %0 is not representable in the underlying type %1">;
def err_enum_redeclare_type_mismatch : Error<
  "enumeration redeclared with different underlying type %0 (was %1)">;
def err_enum_redeclare_fixed_mismatch : Error<
  "enumeration previously declared with %select{non|}0fixed underlying type">;
def err_enum_redeclare_scoped_mismatch : Error<
  "enumeration previously declared as %select{un|}0scoped">;
def err_enum_class_reference : Error<
  "reference to %select{|scoped }0enumeration must use 'enum' "
  "not 'enum class'">;
def err_only_enums_have_underlying_types : Error<
  "only enumeration types have underlying types">;

// C++11 delegating constructors
def err_delegating_ctor : Error<
  "delegating constructors are permitted only in C++11">;
def warn_cxx98_compat_delegating_ctor : Warning<
  "delegating constructors are incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_delegating_initializer_alone : Error<
  "an initializer for a delegating constructor must appear alone">;
def warn_delegating_ctor_cycle : Warning<
  "constructor for %0 creates a delegation cycle">, DefaultError,
  InGroup<DelegatingCtorCycles>;
def note_it_delegates_to : Note<"it delegates to">;
def note_which_delegates_to : Note<"which delegates to">;

// C++11 range-based for loop
def err_for_range_decl_must_be_var : Error<
  "for range declaration must declare a variable">;
def err_for_range_storage_class : Error<
  "loop variable %0 may not be declared %select{'extern'|'static'|"
  "'__private_extern__'|'auto'|'register'|'constexpr'}1">;
def err_type_defined_in_for_range : Error<
  "types may not be defined in a for range declaration">;
def err_for_range_deduction_failure : Error<
  "cannot use type %0 as a range">;
def err_for_range_incomplete_type : Error<
  "cannot use incomplete type %0 as a range">;
def err_for_range_iter_deduction_failure : Error<
  "cannot use type %0 as an iterator">;
def err_for_range_member_begin_end_mismatch : Error<
  "range type %0 has '%select{begin|end}1' member but no '%select{end|begin}1' member">;
def err_for_range_begin_end_types_differ : Error<
  "'begin' and 'end' must return the same type (got %0 and %1)">;
def note_in_for_range: Note<
  "when looking up '%select{begin|end}0' function for range expression "
  "of type %1">;
def err_for_range_invalid: Error<
  "invalid range expression of type %0; no viable '%select{begin|end}1' "
  "function available">;
def err_for_range_dereference : Error<
  "invalid range expression of type %0; did you mean to dereference it "
  "with '*'?">;
def note_for_range_invalid_iterator : Note <
  "in implicit call to 'operator%select{!=|*|++}0' for iterator of type %1">;
def note_for_range_begin_end : Note<
  "selected '%select{begin|end}0' %select{function|template }1%2 with iterator type %3">;

// C++11 constexpr
def warn_cxx98_compat_constexpr : Warning<
  "'constexpr' specifier is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_invalid_constexpr : Error<
  "%select{function parameter|typedef|non-static data member}0 "
  "cannot be constexpr">;
def err_invalid_constexpr_member : Error<"non-static data member cannot be "
  "constexpr%select{; did you intend to make it %select{const|static}0?|}1">;
def err_constexpr_tag : Error<
  "%select{class|struct|interface|union|enum}0 cannot be marked constexpr">;
def err_constexpr_dtor : Error<"destructor cannot be marked constexpr">;
def err_constexpr_no_declarators : Error<
  "constexpr can only be used in variable and function declarations">;
def err_invalid_constexpr_var_decl : Error<
  "constexpr variable declaration must be a definition">;
def err_constexpr_static_mem_var_requires_init : Error<
  "declaration of constexpr static data member %0 requires an initializer">;
def err_constexpr_var_non_literal : Error<
  "constexpr variable cannot have non-literal type %0">;
def err_constexpr_var_requires_const_init : Error<
  "constexpr variable %0 must be initialized by a constant expression">;
def err_constexpr_redecl_mismatch : Error<
  "%select{non-constexpr declaration of %0 follows constexpr declaration"
  "|constexpr declaration of %0 follows non-constexpr declaration}1">;
def err_constexpr_virtual : Error<"virtual function cannot be constexpr">;
def err_constexpr_virtual_base : Error<
  "constexpr %select{member function|constructor}0 not allowed in "
  "%select{struct|interface|class}1 with virtual base "
  "%plural{1:class|:classes}2">;
def note_non_literal_incomplete : Note<
  "incomplete type %0 is not a literal type">;
def note_non_literal_virtual_base : Note<"%select{struct|interface|class}0 "
  "with virtual base %plural{1:class|:classes}1 is not a literal type">;
def note_constexpr_virtual_base_here : Note<"virtual base class declared here">;
def err_constexpr_non_literal_return : Error<
  "constexpr function's return type %0 is not a literal type">;
def err_constexpr_non_literal_param : Error<
  "constexpr %select{function|constructor}1's %ordinal0 parameter type %2 is "
  "not a literal type">;
def err_constexpr_body_invalid_stmt : Error<
  "statement not allowed in constexpr %select{function|constructor}0">;
def err_constexpr_type_definition : Error<
  "types cannot be defined in a constexpr %select{function|constructor}0">;
def err_constexpr_vla : Error<
  "variably-modified type %0 cannot be used in a constexpr "
  "%select{function|constructor}1">;
def err_constexpr_var_declaration : Error<
  "variables cannot be declared in a constexpr %select{function|constructor}0">;
def ext_constexpr_function_never_constant_expr : ExtWarn<
  "constexpr %select{function|constructor}0 never produces a "
  "constant expression">, InGroup<DiagGroup<"invalid-constexpr">>, DefaultError;
def err_constexpr_body_no_return : Error<
  "no return statement in constexpr function">;
def err_constexpr_body_multiple_return : Error<
  "multiple return statements in constexpr function">;
def note_constexpr_body_previous_return : Note<
  "previous return statement is here">;
def err_constexpr_function_try_block : Error<
  "function try block not allowed in constexpr %select{function|constructor}0">;
def err_constexpr_union_ctor_no_init : Error<
  "constexpr union constructor does not initialize any member">;
def err_constexpr_ctor_missing_init : Error<
  "constexpr constructor must initialize all members">;
def note_constexpr_ctor_missing_init : Note<
  "member not initialized by constructor">;
def err_constexpr_method_non_literal : Error<
  "non-literal type %0 cannot have constexpr members">;
def note_non_literal_no_constexpr_ctors : Note<
  "%0 is not literal because it is not an aggregate and has no constexpr "
  "constructors other than copy or move constructors">;
def note_non_literal_base_class : Note<
  "%0 is not literal because it has base class %1 of non-literal type">;
def note_non_literal_field : Note<
  "%0 is not literal because it has data member %1 of "
  "%select{non-literal|volatile}3 type %2">;
def note_non_literal_user_provided_dtor : Note<
  "%0 is not literal because it has a user-provided destructor">;
def note_non_literal_nontrivial_dtor : Note<
  "%0 is not literal because it has a non-trivial destructor">;
def warn_private_extern : Warning<
  "use of __private_extern__ on a declaration may not produce external symbol "
  "private to the linkage unit and is deprecated">, InGroup<PrivateExtern>;
def note_private_extern : Note<
  "use __attribute__((visibility(\"hidden\"))) attribute instead">;

// C++11 char16_t/char32_t
def warn_cxx98_compat_unicode_type : Warning<
  "'%0' type specifier is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
 
// Objective-C++
def err_objc_decls_may_only_appear_in_global_scope : Error<
  "Objective-C declarations may only appear in global scope">;
def warn_auto_var_is_id : Warning<
  "'auto' deduced as 'id' in declaration of %0">,
  InGroup<DiagGroup<"auto-var-id">>;

// Attributes
def err_nsobject_attribute : Error<
  "__attribute ((NSObject)) is for pointer types only">;
def err_attribute_can_be_applied_only_to_symbol_declaration : Error<
  "%0 attribute can be applied only to symbol declaration">;
def err_attributes_are_not_compatible : Error<
  "%0 and %1 attributes are not compatible">;
def err_attribute_wrong_number_arguments : Error<
  "attribute %plural{0:takes no arguments|1:takes one argument|"
  ":requires exactly %0 arguments}0">;
def err_attribute_too_many_arguments : Error<
  "attribute takes no more than %0 argument%s0">;
def err_suppress_autosynthesis : Error<
  "objc_requires_property_definitions attribute may only be specified on a class"
  "to a class declaration">;
def err_attribute_too_few_arguments : Error<
  "attribute takes at least %0 argument%s0">;
def err_attribute_missing_parameter_name : Error<
  "attribute requires unquoted parameter">;
def err_attribute_invalid_vector_type : Error<"invalid vector element type %0">;
def err_attribute_bad_neon_vector_size : Error<
  "Neon vector size must be 64 or 128 bits">;
def err_attribute_argument_not_int : Error<
  "'%0' attribute requires integer constant">;
def err_aligned_attribute_argument_not_int : Error<
  "'aligned' attribute requires integer constant">;
def err_alignas_attribute_wrong_decl_type : Error<
  "'%select{alignas|_Alignas}0' attribute cannot be applied to a %select{"
  "function parameter|variable with 'register' storage class|"
  "'catch' variable|bit-field}1">;
def err_alignas_missing_on_definition : Error<
  "'%select{alignas|_Alignas}0' must be specified on definition if it is "
  "specified on any declaration">;
def note_alignas_on_declaration : Note<
  "declared with '%select{alignas|_Alignas}0' attribute here">;
def err_alignas_mismatch : Error<
  "redeclaration has different alignment requirement (%1 vs %0)">;
def err_alignas_underaligned : Error<
  "requested alignment is less than minimum alignment of %1 for type %0">;
def err_attribute_first_argument_not_int_or_bool : Error<
  "%0 attribute first argument must be of int or bool type">;
def err_attribute_argument_outof_range : Error<
  "init_priority attribute requires integer constant between "
  "101 and 65535 inclusive">;
def err_init_priority_object_attr : Error<
  "can only use 'init_priority' attribute on file-scope definitions "
  "of objects of class type">;
def err_attribute_argument_vec_type_hint : Error<
  "invalid attribute argument %0 - expecting a vector or vectorizable scalar type">;
def err_attribute_argument_n_not_int : Error<
  "'%0' attribute requires parameter %1 to be an integer constant">;
def err_attribute_argument_n_not_string : Error<
  "'%0' attribute requires parameter %1 to be a string">;
def err_attribute_argument_n_not_identifier : Error<
  "'%0' attribute requires parameter %1 to be an identifier">;
def err_attribute_argument_out_of_bounds : Error<
  "'%0' attribute parameter %1 is out of bounds">;
def err_attribute_requires_objc_interface : Error<
  "attribute may only be applied to an Objective-C interface">;
def err_attribute_uuid_malformed_guid : Error<
  "uuid attribute contains a malformed GUID">;
def warn_nonnull_pointers_only : Warning<
  "nonnull attribute only applies to pointer arguments">;
def err_attribute_pointers_only : Error<
  "'%0' attribute only applies to pointer arguments">;
def err_attribute_invalid_implicit_this_argument : Error<
  "'%0' attribute is invalid for the implicit this argument">;
def err_ownership_type : Error<
  "%0 attribute only applies to %1 arguments">;
def err_format_strftime_third_parameter : Error<
  "strftime format attribute requires 3rd parameter to be 0">;
def err_format_attribute_requires_variadic : Error<
  "format attribute requires variadic function">;
def err_format_attribute_not : Error<"format argument not %0">;
def err_format_attribute_result_not : Error<"function does not return %0">;
def err_format_attribute_implicit_this_format_string : Error<
  "format attribute cannot specify the implicit this argument as the format "
  "string">;
def warn_unknown_method_family : Warning<"unrecognized method family">;
def err_init_method_bad_return_type : Error<
  "init methods must return an object pointer type, not %0">;
def err_attribute_invalid_size : Error<
  "vector size not an integral multiple of component size">;
def err_attribute_zero_size : Error<"zero vector size">;
def err_typecheck_vector_not_convertable : Error<
  "can't convert between vector values of different size (%0 and %1)">;
def err_typecheck_ext_vector_not_typedef : Error<
  "ext_vector_type only applies to types, not variables">;
def err_ext_vector_component_exceeds_length : Error<
  "vector component access exceeds type %0">;
def err_ext_vector_component_name_illegal : Error<
  "illegal vector component name '%0'">;
def err_attribute_address_space_not_int : Error<
  "address space attribute requires an integer constant">;
def err_attribute_address_space_negative : Error<
  "address space is negative">;
def err_attribute_address_space_too_high : Error<
  "address space is larger than the maximum supported (%0)">;
def err_attribute_address_multiple_qualifiers : Error<
  "multiple address spaces specified for type">;
def err_attribute_address_function_type : Error<
  "function type may not be qualified with an address space">;
def err_as_qualified_auto_decl : Error<
  "automatic variable qualified with an address space">;
def err_arg_with_address_space : Error<
  "parameter may not be qualified with an address space">;
def err_field_with_address_space : Error<
  "field may not be qualified with an address space">;
def err_attr_objc_ownership_redundant : Error<
  "the type %0 is already explicitly ownership-qualified">;
def err_attribute_not_string : Error<
  "argument to %0 attribute was not a string literal">;
def err_undeclared_nsnumber : Error<
  "NSNumber must be available to use Objective-C literals">;
def err_invalid_nsnumber_type : Error<
  "%0 is not a valid literal type for NSNumber">;
def err_undeclared_nsstring : Error<
  "cannot box a string value because NSString has not been declared">;
def err_objc_illegal_boxed_expression_type : Error<
  "illegal type %0 used in a boxed expression">;
def err_objc_incomplete_boxed_expression_type : Error<
  "incomplete type %0 used in a boxed expression">;
def err_undeclared_nsarray : Error<
  "NSArray must be available to use Objective-C array literals">;
def err_undeclared_nsdictionary : Error<
  "NSDictionary must be available to use Objective-C dictionary "
  "literals">;
def err_undeclared_boxing_method : Error<
  "declaration of %0 is missing in %1 class">;
def err_objc_literal_method_sig : Error<
  "literal construction method %0 has incompatible signature">;
def note_objc_literal_method_param : Note<
  "%select{first|second|third}0 parameter has unexpected type %1 "
  "(should be %2)">;
def note_objc_literal_method_return : Note<
  "method returns unexpected type %0 (should be an object type)">;
def err_invalid_collection_element : Error<
  "collection element of type %0 is not an Objective-C object">;
def err_box_literal_collection : Error<
  "%select{string|character|boolean|numeric}0 literal must be prefixed by '@' "
  "in a collection">;
def warn_objc_literal_comparison : Warning<
  "direct comparison of %select{an array literal|a dictionary literal|"
  "a numeric literal|a boxed expression|}0 has undefined behavior">,
  InGroup<ObjCLiteralComparison>;
def warn_objc_string_literal_comparison : Warning<
  "direct comparison of a string literal has undefined behavior">, 
  InGroup<ObjCStringComparison>;
def note_objc_literal_comparison_isequal : Note<
  "use 'isEqual:' instead">;

let CategoryName = "Cocoa API Issue" in {
def warn_objc_redundant_literal_use : Warning<
  "using %0 with a literal is redundant">, InGroup<ObjCRedundantLiteralUse>;
}

def err_attr_tlsmodel_arg : Error<"tls_model must be \"global-dynamic\", "
  "\"local-dynamic\", \"initial-exec\" or \"local-exec\"">;

def err_only_annotate_after_access_spec : Error<
  "access specifier can only have annotation attributes">;

def err_attribute_section_invalid_for_target : Error<
  "argument to 'section' attribute is not valid for this target: %0">;
def err_attribute_section_local_variable : Error<
  "'section' attribute is not valid on local variables">;
def warn_mismatched_section : Warning<
  "section does not match previous declaration">, InGroup<Section>;

def err_anonymous_property: Error<
  "anonymous property is not supported">;
def err_property_is_variably_modified: Error<
  "property '%0' has a variably modified type">;
def err_no_getter_for_property : Error<
  "no getter defined for property '%0'">;
def err_no_setter_for_property : Error<
  "no setter defined for property '%0'">;
def error_cannot_find_suitable_getter : Error<
  "cannot find suitable getter for property '%0'">;
def error_cannot_find_suitable_setter : Error<
  "cannot find suitable setter for property '%0'">;

def err_attribute_aligned_not_power_of_two : Error<
  "requested alignment is not a power of 2">;
def err_attribute_aligned_greater_than_8192 : Error<
  "requested alignment must be 8192 bytes or smaller">;
def warn_redeclaration_without_attribute_prev_attribute_ignored : Warning<
  "'%0' redeclared without %1 attribute: previous %1 ignored">;
def warn_attribute_ignored : Warning<"%0 attribute ignored">,
  InGroup<IgnoredAttributes>;
def warn_attribute_after_definition_ignored : Warning<
  "attribute %0 after definition is ignored">,
   InGroup<IgnoredAttributes>;
def warn_unknown_attribute_ignored : Warning<
  "unknown attribute %0 ignored">, InGroup<UnknownAttributes>;
def warn_cxx11_gnu_attribute_on_type : Warning<
  "attribute %0 ignored, because it cannot be applied to a type">,
  InGroup<IgnoredAttributes>;
def warn_unhandled_ms_attribute_ignored : Warning<
  "__declspec attribute %0 is not supported">, 
  InGroup<IgnoredAttributes>;
def err_attribute_invalid_on_stmt : Error<
  "%0 attribute cannot be applied to a statement">;
def warn_declspec_attribute_ignored : Warning<
  "attribute %0 is ignored, place it after "
  "\"%select{class|struct|union|interface|enum}1\" to apply attribute to "
  "type declaration">, InGroup<IgnoredAttributes>;
def warn_attribute_precede_definition : Warning<
  "attribute declaration must precede definition">,
  InGroup<IgnoredAttributes>;
def warn_attribute_void_function_method : Warning<
  "attribute %0 cannot be applied to "
  "%select{functions|Objective-C method}1 without return value">,
  InGroup<IgnoredAttributes>;
def warn_attribute_weak_on_field : Warning<
  "__weak attribute cannot be specified on a field declaration">,
  InGroup<IgnoredAttributes>;
def warn_gc_attribute_weak_on_local : Warning<
  "Objective-C GC does not allow weak variables on the stack">,
  InGroup<IgnoredAttributes>;
def warn_nsobject_attribute : Warning<
  "__attribute ((NSObject)) may be put on a typedef only, "
  "attribute is ignored">, InGroup<NSobjectAttribute>;
def warn_attribute_weak_on_local : Warning<
  "__weak attribute cannot be specified on an automatic variable when ARC "
  "is not enabled">,
  InGroup<IgnoredAttributes>;
def warn_weak_identifier_undeclared : Warning<
  "weak identifier %0 never declared">;
def err_attribute_weak_static : Error<
  "weak declaration cannot have internal linkage">;
def warn_attribute_weak_import_invalid_on_definition : Warning<
  "'weak_import' attribute cannot be specified on a definition">,
  InGroup<IgnoredAttributes>;
def err_attribute_weakref_not_static : Error<
  "weakref declaration must have internal linkage">;
def err_attribute_weakref_not_global_context : Error<
  "weakref declaration of '%0' must be in a global context">;
def err_attribute_weakref_without_alias : Error<
  "weakref declaration of '%0' must also have an alias attribute">;
def err_alias_not_supported_on_darwin : Error <
  "only weak aliases are supported on darwin">;
def warn_attribute_wrong_decl_type : Warning<
  "%0 attribute only applies to %select{functions|unions|"
  "variables and functions|functions and methods|parameters|"
  "functions, methods and blocks|functions, methods, and classes|"
  "functions, methods, and parameters|classes|variables|methods|"
  "variables, functions and labels|fields and global variables|structs|"
  "variables, functions and tag types|thread-local variables|"
  "variables and fields|variables, data members and tag types|"
  "types and namespaces}1">,
  InGroup<IgnoredAttributes>;
def err_attribute_wrong_decl_type : Error<
  "%0 attribute only applies to %select{functions|unions|"
  "variables and functions|functions and methods|parameters|"
  "functions, methods and blocks|functions, methods, and classes|"
  "functions, methods, and parameters|classes|variables|methods|"
  "variables, functions and labels|fields and global variables|structs|"
  "variables, functions and tag types|thread-local variables|"
  "variables and fields|variables, data members and tag types|"
  "types and namespaces}1">;
def warn_function_attribute_wrong_type : Warning<
  "'%0' only applies to function types; type here is %1">,
  InGroup<IgnoredAttributes>;
def warn_pointer_attribute_wrong_type : Warning<
  "'%0' only applies to pointer types; type here is %1">,
  InGroup<IgnoredAttributes>;
def warn_objc_object_attribute_wrong_type : Warning<
  "'%0' only applies to Objective-C object or block pointer types; type here is %1">,
  InGroup<IgnoredAttributes>;
def warn_attribute_requires_functions_or_static_globals : Warning<
  "%0 only applies to variables with static storage duration and functions">,
  InGroup<IgnoredAttributes>;
def warn_gnu_inline_attribute_requires_inline : Warning<
  "'gnu_inline' attribute requires function to be marked 'inline',"
  " attribute ignored">,
  InGroup<IgnoredAttributes>;
def err_attribute_vecreturn_only_vector_member : Error<
  "the vecreturn attribute can only be used on a class or structure with one member, which must be a vector">;
def err_attribute_vecreturn_only_pod_record : Error<
  "the vecreturn attribute can only be used on a POD (plain old data) class or structure (i.e. no virtual functions)">;
def err_cconv_change : Error<
  "function declared '%0' here was previously declared "
  "%select{'%2'|without calling convention}1">;
def warn_cconv_ignored : Warning<
  "calling convention %0 ignored for this target">, InGroup<IgnoredAttributes>;
def err_cconv_knr : Error<
  "function with no prototype cannot use %0 calling convention">;
def err_cconv_varargs : Error<
  "variadic function cannot use %0 calling convention">;
def err_regparm_mismatch : Error<"function declared with regparm(%0) "
  "attribute was previously declared "
  "%plural{0:without the regparm|:with the regparm(%1)}1 attribute">;
def err_returns_retained_mismatch : Error<
  "function declared with the ns_returns_retained attribute "
  "was previously declared without the ns_returns_retained attribute">;
def err_objc_precise_lifetime_bad_type : Error<
  "objc_precise_lifetime only applies to retainable types; type here is %0">;
def warn_objc_precise_lifetime_meaningless : Error<
  "objc_precise_lifetime is not meaningful for "
  "%select{__unsafe_unretained|__autoreleasing}0 objects">;
def err_invalid_pcs : Error<"invalid PCS type">;
def err_attribute_can_be_applied_only_to_value_decl : Error<
  "%0 attribute can only be applied to value declarations">;
def warn_attribute_not_on_decl : Warning<
  "%0 attribute ignored when parsing type">, InGroup<IgnoredAttributes>;
def err_base_specifier_attribute : Error<
  "%0 attribute cannot be applied to a base specifier">;

// Availability attribute
def warn_availability_unknown_platform : Warning<
  "unknown platform %0 in availability macro">, InGroup<Availability>;
def warn_availability_version_ordering : Warning<
  "feature cannot be %select{introduced|deprecated|obsoleted}0 in %1 version "
  "%2 before it was %select{introduced|deprecated|obsoleted}3 in version %4; "
  "attribute ignored">, InGroup<Availability>;
def warn_mismatched_availability: Warning<
  "availability does not match previous declaration">, InGroup<Availability>;
def warn_mismatched_availability_override : Warning<
  "overriding method %select{introduced after|"
  "deprecated before|obsoleted before}0 overridden method on %1 (%2 vs. %3)">, 
  InGroup<Availability>;
def warn_mismatched_availability_override_unavail : Warning<
  "overriding method cannot be unavailable on %0 when its overridden method is "
  "available">,
  InGroup<Availability>;
def note_overridden_method : Note<
  "overridden method is here">;

// Thread Safety Attributes
def warn_thread_attribute_ignored : Warning<
  "ignoring %0 attribute because its argument is invalid">,
  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
def warn_thread_attribute_argument_not_lockable : Warning<
  "%0 attribute requires arguments whose type is annotated "
  "with 'lockable' attribute; type here is '%1'">,
  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
def warn_thread_attribute_argument_not_class : Warning<
  "%0 attribute requires arguments that are class type or point to"
  " class type; type here is '%1'">,
  InGroup<ThreadSafetyAttributes>, DefaultIgnore;  
def warn_thread_attribute_decl_not_lockable : Warning<
  "%0 attribute can only be applied in a context annotated "
  "with 'lockable' attribute">,
  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
def warn_thread_attribute_decl_not_pointer : Warning<
  "'%0' only applies to pointer types; type here is %1">,
  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
def warn_thread_attribute_wrong_decl_type : Warning<
  "%0 attribute only applies to %select{"
  "fields and global variables|functions and methods|"
  "classes and structs}1">,
  InGroup<ThreadSafetyAttributes>, DefaultIgnore;  
def err_attribute_argument_out_of_range : Error<
  "%0 attribute parameter %1 is out of bounds: "
  "%plural{0:no parameters to index into|"
  "1:can only be 1, since there is one parameter|"
  ":must be between 1 and %2}2">;

// Thread Safety Analysis   
def warn_unlock_but_no_lock : Warning<
  "unlocking '%0' that was not locked">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_double_lock : Warning<
  "locking '%0' that is already locked">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_no_unlock : Warning<
  "mutex '%0' is still locked at the end of function">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_expecting_locked : Warning<
  "expecting mutex '%0' to be locked at the end of function">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;  
// FIXME: improve the error message about locks not in scope
def warn_lock_some_predecessors : Warning<
  "mutex '%0' is not locked on every path through here">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_expecting_lock_held_on_loop : Warning<
  "expecting mutex '%0' to be locked at start of each loop">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def note_locked_here : Note<"mutex acquired here">;
def warn_lock_exclusive_and_shared : Warning<
  "mutex '%0' is locked exclusively and shared in the same scope">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def note_lock_exclusive_and_shared : Note<
  "the other lock of mutex '%0' is here">;
def warn_variable_requires_any_lock : Warning<
  "%select{reading|writing}1 variable '%0' requires locking "
  "%select{any mutex|any mutex exclusively}1">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_var_deref_requires_any_lock : Warning<
  "%select{reading|writing}1 the value pointed to by '%0' requires locking "
  "%select{any mutex|any mutex exclusively}1">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_fun_excludes_mutex : Warning<
  "cannot call function '%0' while mutex '%1' is locked">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_cannot_resolve_lock : Warning<
  "cannot resolve lock expression">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;

// Imprecise thread safety warnings
def warn_variable_requires_lock : Warning<
  "%select{reading|writing}2 variable '%0' requires locking "
  "%select{'%1'|'%1' exclusively}2">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_var_deref_requires_lock : Warning<
  "%select{reading|writing}2 the value pointed to by '%0' requires locking "
  "%select{'%1'|'%1' exclusively}2">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
def warn_fun_requires_lock : Warning<
  "calling function '%0' requires %select{shared|exclusive}2 lock on '%1'">,
  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;

// Precise thread safety warnings
def warn_variable_requires_lock_precise : Warning<
  "%select{reading|writing}2 variable '%0' requires locking "
  "%select{'%1'|'%1' exclusively}2">,
  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
def warn_var_deref_requires_lock_precise : Warning<
  "%select{reading|writing}2 the value pointed to by '%0' requires locking "
  "%select{'%1'|'%1' exclusively}2">,
  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
def warn_fun_requires_lock_precise : Warning<
  "calling function '%0' requires %select{shared|exclusive}2 lock on '%1'">,
  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
def note_found_mutex_near_match : Note<"found near match '%0'">;

// Dummy warning that will trigger "beta" warnings from the analysis if enabled. 
def warn_thread_safety_beta : Warning<
  "Thread safety beta warning.">, InGroup<ThreadSafetyBeta>, DefaultIgnore;

def warn_impcast_vector_scalar : Warning<
  "implicit conversion turns vector to scalar: %0 to %1">,
  InGroup<Conversion>, DefaultIgnore;
def warn_impcast_complex_scalar : Warning<
  "implicit conversion discards imaginary component: %0 to %1">,
  InGroup<Conversion>, DefaultIgnore;
def warn_impcast_float_precision : Warning<
  "implicit conversion loses floating-point precision: %0 to %1">,
  InGroup<Conversion>, DefaultIgnore;
def warn_impcast_float_integer : Warning<
  "implicit conversion turns floating-point number into integer: %0 to %1">,
  InGroup<Conversion>, DefaultIgnore;
def warn_impcast_integer_sign : Warning<
  "implicit conversion changes signedness: %0 to %1">,
  InGroup<SignConversion>, DefaultIgnore;
def warn_impcast_integer_sign_conditional : Warning<
  "operand of ? changes signedness: %0 to %1">,
  InGroup<SignConversion>, DefaultIgnore;
def warn_impcast_integer_precision : Warning<
  "implicit conversion loses integer precision: %0 to %1">,
  InGroup<Conversion>, DefaultIgnore;
def warn_impcast_integer_64_32 : Warning<
  "implicit conversion loses integer precision: %0 to %1">,
  InGroup<Shorten64To32>, DefaultIgnore;
def warn_impcast_integer_precision_constant : Warning<
  "implicit conversion from %2 to %3 changes value from %0 to %1">,
  InGroup<ConstantConversion>;
def warn_impcast_bitfield_precision_constant : Warning<
  "implicit truncation from %2 to bitfield changes value from %0 to %1">,
  InGroup<ConstantConversion>;
def warn_impcast_literal_float_to_integer : Warning<
  "implicit conversion from %0 to %1 changes value from %2 to %3">,
  InGroup<LiteralConversion>;
def warn_impcast_string_literal_to_bool : Warning<
  "implicit conversion turns string literal into bool: %0 to %1">,
  InGroup<StringConversion>, DefaultIgnore;
def warn_impcast_different_enum_types : Warning<
  "implicit conversion from enumeration type %0 to different enumeration type "
  "%1">, InGroup<EnumConversion>;
def warn_impcast_bool_to_null_pointer : Warning<
    "initialization of pointer of type %0 to null from a constant boolean "
    "expression">, InGroup<BoolConversion>;
def warn_non_literal_null_pointer : Warning<
    "expression which evaluates to zero treated as a null pointer constant of "
    "type %0">, InGroup<NonLiteralNullConversion>;
def warn_impcast_null_pointer_to_integer : Warning<
    "implicit conversion of NULL constant to %0">,
    InGroup<NullConversion>;
def warn_impcast_floating_point_to_bool : Warning<
    "implicit conversion turns floating-point number into bool: %0 to %1">,
    InGroup<ImplicitConversionFloatingPointToBool>;
def warn_impcast_function_to_bool : Warning<
    "address of function %q0 will always evaluate to 'true'">,
    InGroup<BoolConversion>;
def note_function_to_bool_silence : Note<
    "prefix with the address-of operator to silence this warning">;
def note_function_to_bool_call : Note<
    "suffix with parentheses to turn this into a function call">;

def warn_cast_align : Warning<
  "cast from %0 to %1 increases required alignment from %2 to %3">,
  InGroup<CastAlign>, DefaultIgnore;

def warn_int_to_pointer_cast : Warning<
  "cast to %1 from smaller integer type %0">,
  InGroup<IntToPointerCast>;

def warn_attribute_ignored_for_field_of_type : Warning<
  "%0 attribute ignored for field of type %1">,
  InGroup<IgnoredAttributes>;
def warn_transparent_union_attribute_field_size_align : Warning<
  "%select{alignment|size}0 of field %1 (%2 bits) does not match the "
  "%select{alignment|size}0 of the first field in transparent union; "
  "transparent_union attribute ignored">,
  InGroup<IgnoredAttributes>;
def note_transparent_union_first_field_size_align : Note<
  "%select{alignment|size}0 of first field is %1 bits">;
def warn_transparent_union_attribute_not_definition : Warning<
  "transparent_union attribute can only be applied to a union definition; "
  "attribute ignored">,
  InGroup<IgnoredAttributes>;
def warn_transparent_union_attribute_floating : Warning<
  "first field of a transparent union cannot have %select{floating point|"
  "vector}0 type %1; transparent_union attribute ignored">,
  InGroup<IgnoredAttributes>;
def warn_transparent_union_attribute_zero_fields : Warning<
  "transparent union definition must contain at least one field; "
  "transparent_union attribute ignored">,
  InGroup<IgnoredAttributes>;
def warn_attribute_type_not_supported : Warning<
  "'%0' attribute argument not supported: %1">,
  InGroup<IgnoredAttributes>;
def warn_attribute_unknown_visibility : Warning<"unknown visibility '%0'">,
  InGroup<IgnoredAttributes>;
def warn_attribute_protected_visibility :
  Warning<"target does not support 'protected' visibility; using 'default'">,
  InGroup<DiagGroup<"unsupported-visibility">>;
def err_mismatched_visibility: Error<"visibility does not match previous declaration">;
def warn_attribute_unknown_endian : Warning<"unknown endian '%0'">,
  InGroup<IgnoredAttributes>;
def note_previous_attribute : Note<"previous attribute is here">;
def err_unknown_machine_mode : Error<"unknown machine mode %0">;
def err_unsupported_machine_mode : Error<"unsupported machine mode %0">;
def err_mode_not_primitive : Error<
  "mode attribute only supported for integer and floating-point types">;
def err_mode_wrong_type : Error<
  "type of machine mode does not match type of base type">;
def err_attr_wrong_decl : Error<
  "'%0' attribute invalid on this declaration, requires typedef or value">;
def warn_attribute_nonnull_no_pointers : Warning<
  "'nonnull' attribute applied to function with no pointer arguments">,
  InGroup<IgnoredAttributes>;
def warn_attribute_malloc_pointer_only : Warning<
  "'malloc' attribute only applies to functions returning a pointer type">,
  InGroup<IgnoredAttributes>;
def warn_attribute_sentinel_named_arguments : Warning<
  "'sentinel' attribute requires named arguments">,
  InGroup<IgnoredAttributes>;
def warn_attribute_sentinel_not_variadic : Warning<
  "'sentinel' attribute only supported for variadic %select{functions|blocks}0">,
  InGroup<IgnoredAttributes>;
def err_attribute_sentinel_less_than_zero : Error<
  "'sentinel' parameter 1 less than zero">;
def err_attribute_sentinel_not_zero_or_one : Error<
  "'sentinel' parameter 2 not 0 or 1">;
def err_attribute_cleanup_arg_not_found : Error<
  "'cleanup' argument %0 not found">;
def err_attribute_cleanup_arg_not_function : Error<
  "'cleanup' argument %0 is not a function">;
def err_attribute_cleanup_func_must_take_one_arg : Error<
  "'cleanup' function %0 must take 1 parameter">;
def err_attribute_cleanup_func_arg_incompatible_type : Error<
  "'cleanup' function %0 parameter has "
  "%diff{type $ which is incompatible with type $|incompatible type}1,2">;
def err_attribute_regparm_wrong_platform : Error<
  "'regparm' is not valid on this platform">;
def err_attribute_regparm_invalid_number : Error<
  "'regparm' parameter must be between 0 and %0 inclusive">;


// Clang-Specific Attributes
def warn_attribute_iboutlet : Warning<
  "%0 attribute can only be applied to instance variables or properties">,
  InGroup<IgnoredAttributes>;
def warn_attribute_ibaction: Warning<
  "ibaction attribute can only be applied to Objective-C instance methods">,
  InGroup<IgnoredAttributes>;
def err_iboutletcollection_type : Error<
  "invalid type %0 as argument of iboutletcollection attribute">;
def warn_iboutlet_object_type : Warning<
  "%select{instance variable|property}2 with %0 attribute must "
  "be an object type (invalid %1)">,
  InGroup<DiagGroup<"invalid-iboutlet">>;
def err_attribute_overloadable_not_function : Error<
  "'overloadable' attribute can only be applied to a function">;
def err_attribute_overloadable_missing : Error<
  "%select{overloaded function|redeclaration of}0 %1 must have the "
  "'overloadable' attribute">;
def note_attribute_overloadable_prev_overload : Note<
  "previous overload of function is here">;
def err_attribute_overloadable_no_prototype : Error<
  "'overloadable' function %0 must have a prototype">;
def warn_ns_attribute_wrong_return_type : Warning<
  "%0 attribute only applies to %select{functions|methods}1 that "
  "return %select{an Objective-C object|a pointer|a non-retainable pointer}2">,
  InGroup<IgnoredAttributes>;
def warn_ns_attribute_wrong_parameter_type : Warning<
  "%0 attribute only applies to %select{Objective-C object|pointer}1 "
  "parameters">,
  InGroup<IgnoredAttributes>;
def warn_objc_requires_super_protocol : Warning<
  "%0 attribute cannot be applied to %select{methods in protocols|dealloc}1">,
  InGroup<DiagGroup<"requires-super-attribute">>;
def note_protocol_decl : Note<
  "protocol is declared here">;

def err_ns_bridged_not_interface : Error<
  "parameter of 'ns_bridged' attribute does not name an Objective-C class">;

// Function Parameter Semantic Analysis.
def err_param_with_void_type : Error<"argument may not have 'void' type">;
def err_void_only_param : Error<
  "'void' must be the first and only parameter if specified">;
def err_void_param_qualified : Error<
  "'void' as parameter must not have type qualifiers">;
def err_ident_list_in_fn_declaration : Error<
  "a parameter list without types is only allowed in a function definition">;
def ext_param_not_declared : Extension<
  "parameter %0 was not declared, defaulting to type 'int'">;
def err_param_typedef_of_void : Error<
  "empty parameter list defined with a %select{typedef|type alias}0 of 'void' not allowed%select{ in C++|}0">;
def err_param_default_argument : Error<
  "C does not support default arguments">;
def err_param_default_argument_redefinition : Error<
  "redefinition of default argument">;
def warn_param_default_argument_redefinition : ExtWarn<
  "redefinition of default argument">;
def err_param_default_argument_missing : Error<
  "missing default argument on parameter">;
def err_param_default_argument_missing_name : Error<
  "missing default argument on parameter %0">;
def err_param_default_argument_references_param : Error<
  "default argument references parameter %0">;
def err_param_default_argument_references_local : Error<
  "default argument references local variable %0 of enclosing function">;
def err_param_default_argument_references_this : Error<
  "default argument references 'this'">;
def err_param_default_argument_nonfunc : Error<
  "default arguments can only be specified for parameters in a function "
  "declaration">;
def err_param_default_argument_template_redecl : Error<
  "default arguments cannot be added to a function template that has already "
  "been declared">;
def err_param_default_argument_member_template_redecl : Error<
  "default arguments cannot be added to an out-of-line definition of a member "
  "of a %select{class template|class template partial specialization|nested "
  "class in a template}0">;
def err_uninitialized_member_for_assign : Error<
  "cannot define the implicit default assignment operator for %0, because "
  "non-static %select{reference|const}1 member %2 can't use default "
  "assignment operator">;
def err_uninitialized_member_in_ctor : Error<
  "%select{|implicit default |inheriting }0constructor for %1 must explicitly "
  "initialize the %select{reference|const}2 member %3">;
def err_default_arg_makes_ctor_special : Error<
  "addition of default argument on redeclaration makes this constructor a "
  "%select{default|copy|move}0 constructor">;

def err_use_of_default_argument_to_function_declared_later : Error<
  "use of default argument to function %0 that is declared later in class %1">;
def note_default_argument_declared_here : Note<
  "default argument declared here">;

def ext_param_promoted_not_compatible_with_prototype : ExtWarn<
  "%diff{promoted type $ of K&R function parameter is not compatible with the "
  "parameter type $|promoted type of K&R function parameter is not compatible "
  "with parameter type}0,1 declared in a previous prototype">,
  InGroup<KNRPromotedParameter>;


// C++ Overloading Semantic Analysis.
def err_ovl_diff_return_type : Error<
  "functions that differ only in their return type cannot be overloaded">;
def err_ovl_static_nonstatic_member : Error<
  "static and non-static member functions with the same parameter types "
  "cannot be overloaded">;

def err_ovl_no_viable_function_in_call : Error<
  "no matching function for call to %0">;
def err_ovl_no_viable_member_function_in_call : Error<
  "no matching member function for call to %0">;
def err_ovl_ambiguous_call : Error<
  "call to %0 is ambiguous">;
def err_ovl_deleted_call : Error<
  "call to %select{unavailable|deleted}0 function %1%2">;
def err_ovl_ambiguous_member_call : Error<
  "call to member function %0 is ambiguous">;
def err_ovl_deleted_member_call : Error<
  "call to %select{unavailable|deleted}0 member function %1%2">;
def note_ovl_too_many_candidates : Note<
    "remaining %0 candidate%s0 omitted; "
    "pass -fshow-overloads=all to show them">;
def note_ovl_candidate : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "is the implicit default constructor|"
    "is the implicit copy constructor|"
    "is the implicit move constructor|"
    "is the implicit copy assignment operator|"
    "is the implicit move assignment operator|"
    "is an inherited constructor}0%1"
    "%select{| has different class%diff{ (expected $ but has $)|}3,4"
    "| has different number of parameters (expected %3 but has %4)"
    "| has type mismatch at %ordinal3 parameter"
    "%diff{ (expected $ but has $)|}4,5"
    "| has different return type%diff{ ($ expected but has $)|}3,4"
    "| has different qualifiers (expected "
    "%select{none|const|restrict|const and restrict|volatile|const and volatile"
    "|volatile and restrict|const, volatile, and restrict}3 but found "
    "%select{none|const|restrict|const and restrict|volatile|const and volatile"
    "|volatile and restrict|const, volatile, and restrict}4)}2">;

def note_ovl_candidate_inherited_constructor : Note<"inherited from here">;
def note_ovl_candidate_bad_deduction : Note<
    "candidate template ignored: failed template argument deduction">;
def note_ovl_candidate_incomplete_deduction : Note<"candidate template ignored: "
    "couldn't infer template argument %0">;
def note_ovl_candidate_inconsistent_deduction : Note<
    "candidate template ignored: deduced conflicting %select{types|values|"
    "templates}0 for parameter %1%diff{ ($ vs. $)|}2,3">;
def note_ovl_candidate_explicit_arg_mismatch_named : Note<
    "candidate template ignored: invalid explicitly-specified argument "
    "for template parameter %0">;
def note_ovl_candidate_explicit_arg_mismatch_unnamed : Note<
    "candidate template ignored: invalid explicitly-specified argument "
    "for %ordinal0 template parameter">;
def note_ovl_candidate_instantiation_depth : Note<
    "candidate template ignored: substitution exceeded maximum template "
    "instantiation depth">;
def note_ovl_candidate_underqualified : Note<
    "candidate template ignored: can't deduce a type for %0 which would "
    "make %2 equal %1">;
def note_ovl_candidate_substitution_failure : Note<
    "candidate template ignored: substitution failure%0%1">;
def note_ovl_candidate_disabled_by_enable_if : Note<
    "candidate template ignored: disabled by %0%1">;
def note_ovl_candidate_failed_overload_resolution : Note<
    "candidate template ignored: couldn't resolve reference to overloaded "
    "function %0">;
def note_ovl_candidate_non_deduced_mismatch : Note<
    "candidate template ignored: could not match %diff{$ against $|types}0,1">;
// This note is needed because the above note would sometimes print two
// different types with the same name.  Remove this note when the above note
// can handle that case properly.
def note_ovl_candidate_non_deduced_mismatch_qualified : Note<
    "candidate template ignored: could not match %q0 against %q1">;
    
// Note that we don't treat templates differently for this diagnostic.
def note_ovl_candidate_arity : Note<"candidate "
    "%select{function|function|constructor|function|function|constructor|"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0 %select{|template }1"
    "not viable: requires%select{ at least| at most|}2 %3 argument%s3, but %4 "
    "%plural{1:was|:were}4 provided">;

def note_ovl_candidate_arity_one : Note<"candidate "
    "%select{function|function|constructor|function|function|constructor|"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0 %select{|template }1not viable: "
    "%select{requires at least|allows at most single|requires single}2 "
    "argument %3, but %plural{0:no|:%4}4 arguments were provided">;

def note_ovl_candidate_deleted : Note<
    "candidate %select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1 has been "
    "%select{explicitly made unavailable|explicitly deleted|"
    "implicitly deleted}2">;

// Giving the index of the bad argument really clutters this message, and
// it's relatively unimportant because 1) it's generally obvious which
// argument(s) are of the given object type and 2) the fix is usually
// to complete the type, which doesn't involve changes to the call line
// anyway.  If people complain, we can change it.
def note_ovl_candidate_bad_conv_incomplete : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1 "
    "not viable: cannot convert argument of incomplete type "
    "%diff{$ to $|to parameter type}2,3">;
def note_ovl_candidate_bad_list_argument : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1 "
    "not viable: cannot convert initializer list argument to %3">;
def note_ovl_candidate_bad_overload : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1"
    " not viable: no overload of %3 matching %2 for %ordinal4 argument">;
def note_ovl_candidate_bad_conv : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1"
    " not viable: no known conversion "
    "%diff{from $ to $|from argument type to parameter type}2,3 for "
    "%select{%ordinal5 argument|object argument}4"
    "%select{|; dereference the argument with *|"
    "; take the address of the argument with &|"
    "; remove *|"
    "; remove &}6">;
def note_ovl_candidate_bad_arc_conv : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1"
    " not viable: cannot implicitly convert argument "
    "%diff{of type $ to $|type to parameter type}2,3 for "
    "%select{%ordinal5 argument|object argument}4 under ARC">;
def note_ovl_candidate_bad_lvalue : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1"
    " not viable: expects an l-value for "
    "%select{%ordinal3 argument|object argument}2">;
def note_ovl_candidate_bad_addrspace : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1 not viable: "
    "%select{%ordinal6|'this'}5 argument (%2) is in "
    "address space %3, but parameter must be in address space %4">;
def note_ovl_candidate_bad_gc : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1 not viable: "
    "%select{%ordinal6|'this'}5 argument (%2) has %select{no|__weak|__strong}3 "
    "ownership, but parameter has %select{no|__weak|__strong}4 ownership">;
def note_ovl_candidate_bad_ownership : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1 not viable: "
    "%select{%ordinal6|'this'}5 argument (%2) has "
    "%select{no|__unsafe_unretained|__strong|__weak|__autoreleasing}3 ownership,"
    " but parameter has %select{no|__unsafe_unretained|__strong|__weak|"
    "__autoreleasing}4 ownership">;
def note_ovl_candidate_bad_cvr_this : Note<"candidate "
    "%select{|function|||function|||||"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|}0 not viable: "
    "'this' argument has type %2, but method is not marked "
    "%select{const|restrict|const or restrict|volatile|const or volatile|"
    "volatile or restrict|const, volatile, or restrict}3">;
def note_ovl_candidate_bad_cvr : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1 not viable: "
    "%ordinal4 argument (%2) would lose "
    "%select{const|restrict|const and restrict|volatile|const and volatile|"
    "volatile and restrict|const, volatile, and restrict}3 qualifier"
    "%select{||s||s|s|s}3">;
def note_ovl_candidate_bad_base_to_derived_conv : Note<"candidate "
    "%select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0%1"
    " not viable: cannot %select{convert from|convert from|bind}2 "
    "%select{base class pointer|superclass|base class object of type}2 %3 to "
    "%select{derived class pointer|subclass|derived class reference}2 %4 for "
    "%ordinal5 argument">;
def note_ovl_candidate_bad_target : Note<
    "candidate %select{function|function|constructor|"
    "function |function |constructor |"
    "constructor (the implicit default constructor)|"
    "constructor (the implicit copy constructor)|"
    "constructor (the implicit move constructor)|"
    "function (the implicit copy assignment operator)|"
    "function (the implicit move assignment operator)|"
    "constructor (inherited)}0 not viable: call to "
    "%select{__device__|__global__|__host__|__host__ __device__}1 function from"
    " %select{__device__|__global__|__host__|__host__ __device__}2 function">;

def note_ambiguous_type_conversion: Note<
    "because of ambiguity in conversion %diff{of $ to $|between types}0,1">;
def note_ovl_builtin_binary_candidate : Note<
    "built-in candidate %0">;
def note_ovl_builtin_unary_candidate : Note<
    "built-in candidate %0">;
def err_ovl_no_viable_function_in_init : Error<
  "no matching constructor for initialization of %0">;
def err_ovl_no_conversion_in_cast : Error<
  "cannot convert %1 to %2 without a conversion operator">;
def err_ovl_no_viable_conversion_in_cast : Error<
  "no matching conversion for %select{|static_cast|reinterpret_cast|"
  "dynamic_cast|C-style cast|functional-style cast}0 from %1 to %2">;
def err_ovl_ambiguous_conversion_in_cast : Error<
  "ambiguous conversion for %select{|static_cast|reinterpret_cast|"
  "dynamic_cast|C-style cast|functional-style cast}0 from %1 to %2">;
def err_ovl_deleted_conversion_in_cast : Error<
  "%select{|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
  "functional-style cast}0 from %1 to %2 uses deleted function">;
def err_ovl_ambiguous_init : Error<"call to constructor of %0 is ambiguous">;
def err_ref_init_ambiguous : Error<
  "reference initialization of type %0 with initializer of type %1 is ambiguous">;
def err_ovl_deleted_init : Error<
  "call to %select{unavailable|deleted}0 constructor of %1">;
def err_ovl_deleted_special_init : Error<
  "call to implicitly-deleted %select{default constructor|copy constructor|"
  "move constructor|copy assignment operator|move assignment operator|"
  "destructor|function}0 of %1">;
def err_ovl_ambiguous_oper_unary : Error<
  "use of overloaded operator '%0' is ambiguous (operand type %1)">;
def err_ovl_ambiguous_oper_binary : Error<
  "use of overloaded operator '%0' is ambiguous (with operand types %1 and %2)">;
def err_ovl_no_viable_oper : Error<"no viable overloaded '%0'">;
def err_ovl_deleted_oper : Error<
  "overload resolution selected %select{unavailable|deleted}0 operator '%1'%2">;
def err_ovl_deleted_special_oper : Error<
  "object of type %0 cannot be %select{constructed|copied|moved|assigned|"
  "assigned|destroyed}1 because its %select{default constructor|"
  "copy constructor|move constructor|copy assignment operator|"
  "move assignment operator|destructor}1 is implicitly deleted">;
def err_ovl_no_viable_subscript :
    Error<"no viable overloaded operator[] for type %0">;
def err_ovl_no_oper :
    Error<"type %0 does not provide a %select{subscript|call}1 operator">;
def err_ovl_unresolvable : Error<
  "reference to overloaded function could not be resolved; "
  "did you mean to call it%select{| with no arguments}0?">;
def err_bound_member_function : Error<
  "reference to non-static member function must be called"
  "%select{|; did you mean to call it with no arguments?}0">;
def note_possible_target_of_call : Note<"possible target for call">;

def err_ovl_no_viable_object_call : Error<
  "no matching function for call to object of type %0">;
def err_ovl_ambiguous_object_call : Error<
  "call to object of type %0 is ambiguous">;
def err_ovl_deleted_object_call : Error<
  "call to %select{unavailable|deleted}0 function call operator in type %1%2">;
def note_ovl_surrogate_cand : Note<"conversion candidate of type %0">;
def err_member_call_without_object : Error<
  "call to non-static member function without an object argument">;

// C++ Address of Overloaded Function
def err_addr_ovl_no_viable : Error<
  "address of overloaded function %0 does not match required type %1">;
def err_addr_ovl_ambiguous : Error<
  "address of overloaded function %0 is ambiguous">;
def err_addr_ovl_not_func_ptrref : Error<
  "address of overloaded function %0 cannot be converted to type %1">;
def err_addr_ovl_no_qualifier : Error<
  "can't form member pointer of type %0 without '&' and class name">;

// C++11 Literal Operators
def err_ovl_no_viable_literal_operator : Error<
  "no matching literal operator for call to %0"
  "%select{| with argument of type %2| with arguments of types %2 and %3}1"
  "%select{| or 'const char *', and no matching literal operator template}4">;

// C++ Template Declarations
def err_template_param_shadow : Error<
  "declaration of %0 shadows template parameter">;
def note_template_param_here : Note<"template parameter is declared here">;
def warn_template_export_unsupported : Warning<
  "exported templates are unsupported">;
def err_template_outside_namespace_or_class_scope : Error<
  "templates can only be declared in namespace or class scope">;
def err_template_linkage : Error<"templates must have C++ linkage">;
def err_template_typedef : Error<"a typedef cannot be a template">;
def err_template_unnamed_class : Error<
  "cannot declare a class template with no name">;
def err_template_param_list_different_arity : Error<
  "%select{too few|too many}0 template parameters in template "
  "%select{|template parameter }1redeclaration">;
def note_template_param_list_different_arity : Note<
  "%select{too few|too many}0 template parameters in template template "
  "argument">;
def note_template_prev_declaration : Note<
  "previous template %select{declaration|template parameter}0 is here">;
def err_template_param_different_kind : Error<
  "template parameter has a different kind in template "
  "%select{|template parameter }0redeclaration">;
def note_template_param_different_kind : Note<
  "template parameter has a different kind in template argument">;
  
def err_template_nontype_parm_different_type : Error<
  "template non-type parameter has a different type %0 in template "
  "%select{|template parameter }1redeclaration">;

def note_template_nontype_parm_different_type : Note<
  "template non-type parameter has a different type %0 in template argument">;
def note_template_nontype_parm_prev_declaration : Note<
  "previous non-type template parameter with type %0 is here">;
def err_template_nontype_parm_bad_type : Error<
  "a non-type template parameter cannot have type %0">;
def err_template_param_default_arg_redefinition : Error<
  "template parameter redefines default argument">;
def note_template_param_prev_default_arg : Note<
  "previous default template argument defined here">;
def err_template_param_default_arg_missing : Error<
  "template parameter missing a default argument">;
def ext_template_parameter_default_in_function_template : ExtWarn<
  "default template arguments for a function template are a C++11 extension">,
  InGroup<CXX11>;
def warn_cxx98_compat_template_parameter_default_in_function_template : Warning<
  "default template arguments for a function template are incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_template_parameter_default_template_member : Error<
  "cannot add a default template argument to the definition of a member of a "
  "class template">;
def err_template_parameter_default_friend_template : Error<
  "default template argument not permitted on a friend template">;
def err_template_template_parm_no_parms : Error<
  "template template parameter must have its own template parameters">;

def err_template_variable : Error<"variable %0 declared as a template">;
def err_template_variable_noparams : Error<
  "extraneous 'template<>' in declaration of variable %0">;
def err_template_member : Error<"member %0 declared as a template">;
def err_template_member_noparams : Error<
  "extraneous 'template<>' in declaration of member %0">;
def err_template_tag_noparams : Error<
  "extraneous 'template<>' in declaration of %0 %1">;
def err_template_decl_ref : Error<
  "cannot refer to class template %0 without a template argument list">;

// C++ Template Argument Lists
def err_template_missing_args : Error<
  "use of class template %0 requires template arguments">;
def err_template_arg_list_different_arity : Error<
  "%select{too few|too many}0 template arguments for "
  "%select{class template|function template|template template parameter"
  "|template}1 %2">;
def note_template_decl_here : Note<"template is declared here">;
def note_member_of_template_here : Note<"member is declared here">;
def err_template_arg_must_be_type : Error<
  "template argument for template type parameter must be a type">;
def err_template_arg_must_be_type_suggest : Error<
  "template argument for template type parameter must be a type; did you forget 'typename'?">;
def err_template_arg_must_be_expr : Error<
  "template argument for non-type template parameter must be an expression">;
def err_template_arg_nontype_ambig : Error<
  "template argument for non-type template parameter is treated as function type %0">;
def err_template_arg_must_be_template : Error<
  "template argument for template template parameter must be a class template%select{| or type alias template}0">;
def ext_template_arg_local_type : ExtWarn<
  "template argument uses local type %0">, InGroup<LocalTypeTemplateArgs>;
def ext_template_arg_unnamed_type : ExtWarn<
  "template argument uses unnamed type">, InGroup<UnnamedTypeTemplateArgs>;
def warn_cxx98_compat_template_arg_local_type : Warning<
  "local type %0 as template argument is incompatible with C++98">,
  InGroup<CXX98CompatLocalTypeTemplateArgs>, DefaultIgnore;
def warn_cxx98_compat_template_arg_unnamed_type : Warning<
  "unnamed type as template argument is incompatible with C++98">,
  InGroup<CXX98CompatUnnamedTypeTemplateArgs>, DefaultIgnore;
def note_template_unnamed_type_here : Note<
  "unnamed type used in template argument was declared here">;
def err_template_arg_overload_type : Error<
  "template argument is the type of an unresolved overloaded function">;
def err_template_arg_not_class_template : Error<
  "template argument does not refer to a class template or template "
  "template parameter">;
def note_template_arg_refers_here_func : Note<
  "template argument refers to function template %0, here">;
def err_template_arg_template_params_mismatch : Error<
  "template template argument has different template parameters than its "
  "corresponding template template parameter">;
def err_template_arg_not_integral_or_enumeral : Error<
  "non-type template argument of type %0 must have an integral or enumeration"
  " type">;
def err_template_arg_not_ice : Error<
  "non-type template argument of type %0 is not an integral constant "
  "expression">;
def err_template_arg_not_address_constant : Error<
  "non-type template argument of type %0 is not a constant expression">;
def warn_cxx98_compat_template_arg_null : Warning<
  "use of null pointer as non-type template argument is incompatible with "
  "C++98">, InGroup<CXX98Compat>, DefaultIgnore;
def err_template_arg_untyped_null_constant : Error<
  "null non-type template argument must be cast to template parameter type %0">;
def err_template_arg_wrongtype_null_constant : Error<
 "null non-type template argument of type %0 does not match template parameter "
 "of type %1">;
def err_deduced_non_type_template_arg_type_mismatch : Error<
  "deduced non-type template argument does not have the same type as the "
  "its corresponding template parameter%diff{ ($ vs $)|}0,1">;
def err_template_arg_not_convertible : Error<
  "non-type template argument of type %0 cannot be converted to a value "
  "of type %1">;
def warn_template_arg_negative : Warning<
  "non-type template argument with value '%0' converted to '%1' for unsigned "
  "template parameter of type %2">, InGroup<Conversion>, DefaultIgnore;
def warn_template_arg_too_large : Warning<
  "non-type template argument value '%0' truncated to '%1' for "
  "template parameter of type %2">, InGroup<Conversion>, DefaultIgnore;
def err_template_arg_no_ref_bind : Error<
  "non-type template parameter of reference type "
  "%diff{$ cannot bind to template argument of type $"
  "|cannot bind to template of incompatible argument type}0,1">;
def err_template_arg_ref_bind_ignores_quals : Error<
  "reference binding of non-type template parameter "
  "%diff{of type $ to template argument of type $|to template argument}0,1 "
  "ignores qualifiers">;
def err_template_arg_not_decl_ref : Error<
  "non-type template argument does not refer to any declaration">;
def err_template_arg_not_object_or_func_form : Error<
  "non-type template argument does not directly refer to an object or "
  "function">;
def err_template_arg_not_address_of : Error<
  "non-type template argument for template parameter of pointer type %0 must "
  "have its address taken">;
def err_template_arg_address_of_non_pointer : Error<
  "address taken in non-type template argument for template parameter of "
  "reference type %0">;
def err_template_arg_reference_var : Error<
  "non-type template argument of reference type %0 is not an object">;
def err_template_arg_field : Error<
  "non-type template argument refers to non-static data member %0">;
def err_template_arg_method : Error<
  "non-type template argument refers to non-static member function %0">;
def err_template_arg_object_no_linkage : Error<
  "non-type template argument refers to %select{function|object}0 %1 that "
  "does not have linkage">;
def warn_cxx98_compat_template_arg_object_internal : Warning<
  "non-type template argument referring to %select{function|object}0 %1 with "
  "internal linkage is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def ext_template_arg_object_internal : ExtWarn<
  "non-type template argument referring to %select{function|object}0 %1 with "
  "internal linkage is a C++11 extension">, InGroup<CXX11>;
def err_template_arg_thread_local : Error<
  "non-type template argument refers to thread-local object">;
def note_template_arg_internal_object : Note<
  "non-type template argument refers to %select{function|object}0 here">;
def note_template_arg_refers_here : Note<
  "non-type template argument refers here">;
def err_template_arg_not_object_or_func : Error<
  "non-type template argument does not refer to an object or function">;
def err_template_arg_not_pointer_to_member_form : Error<
  "non-type template argument is not a pointer to member constant">;
def ext_template_arg_extra_parens : ExtWarn<
  "address non-type template argument cannot be surrounded by parentheses">;
def warn_cxx98_compat_template_arg_extra_parens : Warning<
  "redundant parentheses surrounding address non-type template argument are "
  "incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
def err_pointer_to_member_type : Error<
  "invalid use of pointer to member type after %select{.*|->*}0">;
def err_pointer_to_member_call_drops_quals : Error<
  "call to pointer to member function of type %0 drops '%1' qualifier%s2">;
def err_pointer_to_member_oper_value_classify: Error<
  "pointer-to-member function type %0 can only be called on an "
  "%select{rvalue|lvalue}1">;

// C++ template specialization
def err_template_spec_unknown_kind : Error<
  "can only provide an explicit specialization for a class template, function "
  "template, or a member function, static data member, "
  "%select{or member class|member class, or member enumeration}0 of a "
  "class template">;
def note_specialized_entity : Note<
  "explicitly specialized declaration is here">;
def err_template_spec_decl_function_scope : Error<
  "explicit specialization of %0 in function scope">;
def err_template_spec_decl_class_scope : Error<
  "explicit specialization of %0 in class scope">;
def err_template_spec_decl_friend : Error<
  "cannot declare an explicit specialization in a friend">;
def err_template_spec_decl_out_of_scope_global : Error<
  "%select{class template|class template partial|function template|member "
  "function|static data member|member class|member enumeration}0 "
  "specialization of %1 must originally be declared in the global scope">;
def err_template_spec_decl_out_of_scope : Error<
  "%select{class template|class template partial|function template|member "
  "function|static data member|member class|member enumeration}0 "
  "specialization of %1 must originally be declared in namespace %2">;
def ext_template_spec_decl_out_of_scope : ExtWarn<
  "first declaration of %select{class template|class template partial|"
  "function template|member function|static data member|member class|"
  "member enumeration}0 specialization of %1 outside namespace %2 is a "
  "C++11 extension">, InGroup<CXX11>;
def warn_cxx98_compat_template_spec_decl_out_of_scope : Warning<
  "%select{class template|class template partial|function template|member "
  "function|static data member|member class|member enumeration}0 "
  "specialization of %1 outside namespace %2 is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_template_spec_redecl_out_of_scope : Error<
  "%select{class template|class template partial|function template|member "
  "function|static data member|member class|member enumeration}0 "
  "specialization of %1 not in a namespace enclosing %2">;
def err_template_spec_redecl_global_scope : Error<
  "%select{class template|class template partial|function template|member "
  "function|static data member|member class|member enumeration}0 "
  "specialization of %1 must occur at global scope">;
def err_spec_member_not_instantiated : Error<
  "specialization of member %q0 does not specialize an instantiated member">;
def note_specialized_decl : Note<"attempt to specialize declaration here">;
def err_specialization_after_instantiation : Error<
  "explicit specialization of %0 after instantiation">;
def note_instantiation_required_here : Note<
  "%select{implicit|explicit}0 instantiation first required here">;
def err_template_spec_friend : Error<
  "template specialization declaration cannot be a friend">;
def err_template_spec_default_arg : Error<
  "default argument not permitted on an explicit "
  "%select{instantiation|specialization}0 of function %1">;
def err_not_class_template_specialization : Error<
  "cannot specialize a %select{dependent template|template template "
  "parameter}0">;
def err_function_specialization_in_class : Error<
  "cannot specialize a function %0 within class scope">;
def ext_function_specialization_in_class : ExtWarn<
  "explicit specialization of %0 within class scope is a Microsoft extension">,
  InGroup<Microsoft>;
def ext_explicit_specialization_storage_class : ExtWarn<
  "explicit specialization cannot have a storage class">;
def err_explicit_specialization_inconsistent_storage_class : Error<
  "explicit specialization has extraneous, inconsistent storage class "
  "'%select{none|extern|static|__private_extern__|auto|register}0'">;

// C++ class template specializations and out-of-line definitions
def err_template_spec_needs_header : Error<
  "template specialization requires 'template<>'">;
def err_template_spec_needs_template_parameters : Error<
  "template specialization or definition requires a template parameter list "
  "corresponding to the nested type %0">;
def err_template_param_list_matches_nontemplate : Error<
  "template parameter list matching the non-templated nested type %0 should "
  "be empty ('template<>')">;
def err_alias_template_extra_headers : Error<
  "extraneous template parameter list in alias template declaration">;
def err_template_spec_extra_headers : Error<
  "extraneous template parameter list in template specialization or "
  "out-of-line template definition">;
def warn_template_spec_extra_headers : Warning<
  "extraneous template parameter list in template specialization">;
def note_explicit_template_spec_does_not_need_header : Note<
  "'template<>' header not required for explicitly-specialized class %0 "
  "declared here">;
def err_template_qualified_declarator_no_match : Error<
  "nested name specifier '%0' for declaration does not refer into a class, "
  "class template or class template partial specialization">;
def err_specialize_member_of_template : Error<
  "cannot specialize (with 'template<>') a member of an unspecialized "
  "template">;

// C++ Class Template Partial Specialization
def err_default_arg_in_partial_spec : Error<
    "default template argument in a class template partial specialization">;
def err_dependent_non_type_arg_in_partial_spec : Error<
    "non-type template argument depends on a template parameter of the "
    "partial specialization">;
def err_dependent_typed_non_type_arg_in_partial_spec : Error<
    "non-type template argument specializes a template parameter with "
    "dependent type %0">;
def err_partial_spec_args_match_primary_template : Error<
    "class template partial specialization does not specialize any template "
    "argument; to %select{declare|define}0 the primary template, remove the "
    "template argument list">; 
def warn_partial_specs_not_deducible : Warning<
    "class template partial specialization contains "
    "%select{a template parameter|template parameters}0 that can not be "
    "deduced; this partial specialization will never be used">;
def note_partial_spec_unused_parameter : Note<
    "non-deducible template parameter %0">;
def err_partial_spec_ordering_ambiguous : Error<
    "ambiguous partial specializations of %0">;
def note_partial_spec_match : Note<"partial specialization matches %0">;
def err_partial_spec_redeclared : Error<
  "class template partial specialization %0 cannot be redeclared">;
def note_prev_partial_spec_here : Note<
  "previous declaration of class template partial specialization %0 is here">;
def err_partial_spec_fully_specialized : Error<
  "partial specialization of %0 does not use any of its template parameters">;
  
// C++ Function template specializations
def err_function_template_spec_no_match : Error<
    "no function template matches function template specialization %0">;
def err_function_template_spec_ambiguous : Error<
    "function template specialization %0 ambiguously refers to more than one "
    "function template; explicitly specify%select{| additional}1 template "
    "arguments to identify a particular function template">;
def note_function_template_spec_matched : Note<
    "function template matches specialization %0">;
def err_function_template_partial_spec : Error<
    "function template partial specialization is not allowed">;

// C++ Template Instantiation
def err_template_recursion_depth_exceeded : Error<
  "recursive template instantiation exceeded maximum depth of %0">,
  DefaultFatal, NoSFINAE;
def note_template_recursion_depth : Note<
  "use -ftemplate-depth=N to increase recursive template instantiation depth">;

def err_template_instantiate_within_definition : Error<
  "%select{implicit|explicit}0 instantiation of template %1 within its"
  " own definition">;
def err_template_instantiate_undefined : Error<
  "%select{implicit|explicit}0 instantiation of undefined template %1">;
def err_implicit_instantiate_member_undefined : Error<
  "implicit instantiation of undefined member %0">;
def note_template_class_instantiation_here : Note<
  "in instantiation of template class %0 requested here">;
def note_template_member_class_here : Note<
  "in instantiation of member class %0 requested here">;
def note_template_member_function_here : Note<
  "in instantiation of member function %q0 requested here">;
def note_function_template_spec_here : Note<
  "in instantiation of function template specialization %q0 requested here">;
def note_template_static_data_member_def_here : Note<
  "in instantiation of static data member %q0 requested here">;
def note_template_enum_def_here : Note<
  "in instantiation of enumeration %q0 requested here">;
def note_template_type_alias_instantiation_here : Note<
  "in instantiation of template type alias %0 requested here">;
def note_template_exception_spec_instantiation_here : Note<
  "in instantiation of exception specification for %0 requested here">;
  
def note_default_arg_instantiation_here : Note<
  "in instantiation of default argument for '%0' required here">;
def note_default_function_arg_instantiation_here : Note<
  "in instantiation of default function argument expression "
  "for '%0' required here">;
def note_explicit_template_arg_substitution_here : Note<
  "while substituting explicitly-specified template arguments into function "
  "template %0 %1">;
def note_function_template_deduction_instantiation_here : Note<
  "while substituting deduced template arguments into function template %0 "
  "%1">;
def note_partial_spec_deduct_instantiation_here : Note<
  "during template argument deduction for class template partial "
  "specialization %0 %1">;
def note_prior_template_arg_substitution : Note<
  "while substituting prior template arguments into %select{non-type|template}0"
  " template parameter%1 %2">;
def note_template_default_arg_checking : Note<
  "while checking a default template argument used here">;
def note_instantiation_contexts_suppressed : Note<
  "(skipping %0 context%s0 in backtrace; use -ftemplate-backtrace-limit=0 to "
  "see all)">;

def err_field_instantiates_to_function : Error<
  "data member instantiated with function type %0">;
def err_variable_instantiates_to_function : Error<
  "%select{variable|static data member}0 instantiated with function type %1">;
def err_nested_name_spec_non_tag : Error<
  "type %0 cannot be used prior to '::' because it has no members">;

// C++ Explicit Instantiation
def err_explicit_instantiation_duplicate : Error<
    "duplicate explicit instantiation of %0">;
def note_previous_explicit_instantiation : Note<
    "previous explicit instantiation is here">;
def ext_explicit_instantiation_after_specialization : Extension<
    "explicit instantiation of %0 that occurs after an explicit "
    "specialization will be ignored (C++11 extension)">,
    InGroup<CXX11>;
def warn_cxx98_compat_explicit_instantiation_after_specialization : Warning<
    "explicit instantiation of %0 that occurs after an explicit "
    "specialization is incompatible with C++98">,
    InGroup<CXX98CompatPedantic>, DefaultIgnore;
def note_previous_template_specialization : Note<
    "previous template specialization is here">;
def err_explicit_instantiation_nontemplate_type : Error<
    "explicit instantiation of non-templated type %0">;
def note_nontemplate_decl_here : Note<
    "non-templated declaration is here">;
def err_explicit_instantiation_in_class : Error<
  "explicit instantiation of %0 in class scope">;
def err_explicit_instantiation_out_of_scope : Error<
  "explicit instantiation of %0 not in a namespace enclosing %1">;
def err_explicit_instantiation_must_be_global : Error<
  "explicit instantiation of %0 must occur at global scope">;
def warn_explicit_instantiation_out_of_scope_0x : Warning<
  "explicit instantiation of %0 not in a namespace enclosing %1">, 
  InGroup<CXX11Compat>, DefaultIgnore;
def warn_explicit_instantiation_must_be_global_0x : Warning<
  "explicit instantiation of %0 must occur at global scope">, 
  InGroup<CXX11Compat>, DefaultIgnore;
  
def err_explicit_instantiation_requires_name : Error<
  "explicit instantiation declaration requires a name">;
def err_explicit_instantiation_of_typedef : Error<
  "explicit instantiation of typedef %0">;
def err_explicit_instantiation_storage_class : Error<
  "explicit instantiation cannot have a storage class">;
def err_explicit_instantiation_not_known : Error<
  "explicit instantiation of %0 does not refer to a function template, member "
  "function, member class, or static data member">;
def note_explicit_instantiation_here : Note<
  "explicit instantiation refers here">;
def err_explicit_instantiation_data_member_not_instantiated : Error<
  "explicit instantiation refers to static data member %q0 that is not an "
  "instantiation">;
def err_explicit_instantiation_member_function_not_instantiated : Error<
  "explicit instantiation refers to member function %q0 that is not an "
  "instantiation">;
def err_explicit_instantiation_ambiguous : Error<
  "partial ordering for explicit instantiation of %0 is ambiguous">;
def note_explicit_instantiation_candidate : Note<
  "explicit instantiation candidate function template here %0">;
def err_explicit_instantiation_inline : Error<
  "explicit instantiation cannot be 'inline'">;
def warn_explicit_instantiation_inline_0x : Warning<
  "explicit instantiation cannot be 'inline'">, InGroup<CXX11Compat>,
  DefaultIgnore;
def err_explicit_instantiation_constexpr : Error<
  "explicit instantiation cannot be 'constexpr'">;
def ext_explicit_instantiation_without_qualified_id : Extension<
  "qualifier in explicit instantiation of %q0 requires a template-id "
  "(a typedef is not permitted)">;
def err_explicit_instantiation_unqualified_wrong_namespace : Error<
  "explicit instantiation of %q0 must occur in namespace %1">;
def warn_explicit_instantiation_unqualified_wrong_namespace_0x : Warning<
  "explicit instantiation of %q0 must occur in namespace %1">,
  InGroup<CXX11Compat>, DefaultIgnore;
def err_explicit_instantiation_undefined_member : Error<
  "explicit instantiation of undefined %select{member class|member function|"
  "static data member}0 %1 of class template %2">;
def err_explicit_instantiation_undefined_func_template : Error<
  "explicit instantiation of undefined function template %0">;
def err_explicit_instantiation_declaration_after_definition : Error<
  "explicit instantiation declaration (with 'extern') follows explicit "
  "instantiation definition (without 'extern')">;
def note_explicit_instantiation_definition_here : Note<
  "explicit instantiation definition is here">;
  
// C++ typename-specifiers
def err_typename_nested_not_found : Error<"no type named %0 in %1">;
def err_typename_nested_not_found_enable_if : Error<
  "no type named 'type' in %0; 'enable_if' cannot be used to disable "
  "this declaration">;
def err_typename_nested_not_type : Error<
    "typename specifier refers to non-type member %0 in %1">;
def note_typename_refers_here : Note<
    "referenced member %0 is declared here">;
def err_typename_missing : Error<
  "missing 'typename' prior to dependent type name '%0%1'">;
def warn_typename_missing : ExtWarn<
  "missing 'typename' prior to dependent type name '%0%1'">,
  InGroup<DiagGroup<"typename-missing">>;
def ext_typename_outside_of_template : ExtWarn<
  "'typename' occurs outside of a template">, InGroup<CXX11>;
def warn_cxx98_compat_typename_outside_of_template : Warning<
  "use of 'typename' outside of a template is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_typename_refers_to_using_value_decl : Error<
  "typename specifier refers to a dependent using declaration for a value "
  "%0 in %1">;
def note_using_value_decl_missing_typename : Note<
  "add 'typename' to treat this using declaration as a type">;

def err_template_kw_refers_to_non_template : Error<
    "%0 following the 'template' keyword does not refer to a template">;
def err_template_kw_refers_to_class_template : Error<
    "'%0%1' instantiated to a class template, not a function template">;
def note_referenced_class_template : Error<
    "class template declared here">;
def err_template_kw_missing : Error<
  "missing 'template' keyword prior to dependent template name '%0%1'">;
def ext_template_outside_of_template : ExtWarn<
  "'template' keyword outside of a template">, InGroup<CXX11>;
def warn_cxx98_compat_template_outside_of_template : Warning<
  "use of 'template' keyword outside of a template is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;

def err_non_type_template_in_nested_name_specifier : Error<
  "qualified name refers into a specialization of function template %0">;
def err_template_id_not_a_type : Error<
  "template name refers to non-type template %0">;
def note_template_declared_here : Note<
  "%select{function template|class template|type alias template|template template parameter}0 "
  "%1 declared here">;
def note_parameter_type : Note<
  "parameter of type %0 is declared here">;

// C++11 Variadic Templates
def err_template_param_pack_default_arg : Error<
  "template parameter pack cannot have a default argument">;
def err_template_param_pack_must_be_last_template_parameter : Error<
  "template parameter pack must be the last template parameter">;

def err_template_parameter_pack_non_pack : Error<
  "%select{template type|non-type template|template template}0 parameter"
  "%select{| pack}1 conflicts with previous %select{template type|"
  "non-type template|template template}0 parameter%select{ pack|}1">;
def note_template_parameter_pack_non_pack : Note<
  "%select{template type|non-type template|template template}0 parameter"
  "%select{| pack}1 does not match %select{template type|non-type template"
  "|template template}0 parameter%select{ pack|}1 in template argument">;
def note_template_parameter_pack_here : Note<
  "previous %select{template type|non-type template|template template}0 "
  "parameter%select{| pack}1 declared here">;
  
def err_unexpanded_parameter_pack_0 : Error<
  "%select{expression|base type|declaration type|data member type|bit-field "
  "size|static assertion|fixed underlying type|enumerator value|"
  "using declaration|friend declaration|qualifier|initializer|default argument|"
  "non-type template parameter type|exception type|partial specialization|"
  "__if_exists name|__if_not_exists name|lambda|block}0 "
  "contains an unexpanded parameter pack">;
def err_unexpanded_parameter_pack_1 : Error<
  "%select{expression|base type|declaration type|data member type|bit-field "
  "size|static assertion|fixed underlying type|enumerator value|"
  "using declaration|friend declaration|qualifier|initializer|default argument|"
  "non-type template parameter type|exception type|partial specialization|"
  "__if_exists name|__if_not_exists name|lambda|block}0 "
  "contains unexpanded parameter pack %1">;
def err_unexpanded_parameter_pack_2 : Error<
  "%select{expression|base type|declaration type|data member type|bit-field "
  "size|static assertion|fixed underlying type|enumerator value|"
  "using declaration|friend declaration|qualifier|initializer|default argument|"
  "non-type template parameter type|exception type|partial specialization|"
  "__if_exists name|__if_not_exists name|lambda|block}0 "
  "contains unexpanded parameter packs %1 and %2">;
def err_unexpanded_parameter_pack_3_or_more : Error<
  "%select{expression|base type|declaration type|data member type|bit-field "
  "size|static assertion|fixed underlying type|enumerator value|"
  "using declaration|friend declaration|qualifier|initializer|default argument|"
  "non-type template parameter type|exception type|partial specialization|"
  "__if_exists name|__if_not_exists name|lambda|block}0 "
  "contains unexpanded parameter packs %1, %2, ...">;

def err_pack_expansion_without_parameter_packs : Error<
  "pack expansion does not contain any unexpanded parameter packs">;
def err_pack_expansion_length_conflict : Error<
  "pack expansion contains parameter packs %0 and %1 that have different "
  "lengths (%2 vs. %3)">;
def err_pack_expansion_length_conflict_multilevel : Error<
  "pack expansion contains parameter pack %0 that has a different "
  "length (%1 vs. %2) from outer parameter packs">;
def err_pack_expansion_member_init : Error<
  "pack expansion for initialization of member %0">;

def err_function_parameter_pack_without_parameter_packs : Error<
  "type %0 of function parameter pack does not contain any unexpanded "
  "parameter packs">;
def err_ellipsis_in_declarator_not_parameter : Error<
  "only function and template parameters can be parameter packs">;

def err_sizeof_pack_no_pack_name : Error<
  "%0 does not refer to the name of a parameter pack">;

def err_unexpected_typedef : Error<
  "unexpected type name %0: expected expression">;
def err_unexpected_namespace : Error<
  "unexpected namespace name %0: expected expression">;
def err_undeclared_var_use : Error<"use of undeclared identifier %0">;
def warn_found_via_dependent_bases_lookup : ExtWarn<"use of identifier %0 "
   "found via unqualified lookup into dependent bases of class templates is a "
   "Microsoft extension">, InGroup<Microsoft>;
def note_dependent_var_use : Note<"must qualify identifier to find this "
    "declaration in dependent base class">;
def err_not_found_by_two_phase_lookup : Error<"call to function %0 that is neither "
    "visible in the template definition nor found by argument-dependent lookup">;
def note_not_found_by_two_phase_lookup : Note<"%0 should be declared prior to the "
    "call site%select{| or in %2| or in an associated namespace of one of its arguments}1">;
def err_undeclared_use : Error<"use of undeclared %0">;
def warn_deprecated : Warning<"%0 is deprecated">,
    InGroup<DeprecatedDeclarations>;
def warn_deprecated_message : Warning<"%0 is deprecated: %1">,
    InGroup<DeprecatedDeclarations>;
def warn_deprecated_fwdclass_message : Warning<
    "%0 maybe deprecated because receiver type is unknown">,
    InGroup<DeprecatedDeclarations>;
def warn_deprecated_def : Warning<
    "Implementing deprecated %select{method|class|category}0">,
    InGroup<DeprecatedImplementations>, DefaultIgnore;
def err_unavailable : Error<"%0 is unavailable">;
def err_unavailable_message : Error<"%0 is unavailable: %1">;
def warn_unavailable_fwdclass_message : Warning<
    "%0 maybe unavailable because receiver type is unknown">;
def note_unavailable_here : Note<
  "%select{declaration|function}0 has been explicitly marked "
  "%select{unavailable|deleted|deprecated}1 here">;
def note_implicitly_deleted : Note<
  "explicitly defaulted function was implicitly deleted here">;
def warn_not_enough_argument : Warning<
  "not enough variable arguments in %0 declaration to fit a sentinel">,
  InGroup<Sentinel>;
def warn_missing_sentinel : Warning <
  "missing sentinel in %select{function call|method dispatch|block call}0">,
  InGroup<Sentinel>;
def note_sentinel_here : Note<
  "%select{function|method|block}0 has been explicitly marked sentinel here">;
def warn_missing_prototype : Warning<
  "no previous prototype for function %0">,
  InGroup<DiagGroup<"missing-prototypes">>, DefaultIgnore;
def note_declaration_not_a_prototype : Note<
  "this declaration is not a prototype; add 'void' to make it a prototype for a zero-parameter function">; 
def warn_missing_variable_declarations : Warning<
  "no previous extern declaration for non-static variable %0">,
  InGroup<DiagGroup<"missing-variable-declarations">>, DefaultIgnore;
def err_redefinition : Error<"redefinition of %0">;
def err_definition_of_implicitly_declared_member : Error<
  "definition of implicitly declared %select{default constructor|copy "
  "constructor|move constructor|copy assignment operator|move assignment "
  "operator|destructor}1">;
def err_definition_of_explicitly_defaulted_member : Error<
  "definition of explicitly defaulted %select{default constructor|copy "
  "constructor|move constructor|copy assignment operator|move assignment "
  "operator|destructor}0">;
def err_redefinition_extern_inline : Error<
  "redefinition of a 'extern inline' function %0 is not supported in "
  "%select{C99 mode|C++}1">;
def warn_cxx98_compat_friend_redefinition : Warning<
  "friend function %0 would be implicitly redefined in C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;

def note_deleted_dtor_no_operator_delete : Note<
  "virtual destructor requires an unambiguous, accessible 'operator delete'">;
def note_deleted_special_member_class_subobject : Note<
  "%select{default constructor|copy constructor|move constructor|"
  "copy assignment operator|move assignment operator|destructor}0 of "
  "%1 is implicitly deleted because "
  "%select{base class %3|%select{||||variant }4field %3}2 has "
  "%select{no|a deleted|multiple|an inaccessible|a non-trivial}4 "
  "%select{%select{default constructor|copy constructor|move constructor|copy "
  "assignment operator|move assignment operator|destructor}0|destructor}5"
  "%select{||s||}4">;
def note_deleted_default_ctor_uninit_field : Note<
  "default constructor of %0 is implicitly deleted because field %1 of "
  "%select{reference|const-qualified}3 type %2 would not be initialized">;
def note_deleted_default_ctor_all_const : Note<
  "default constructor of %0 is implicitly deleted because all "
  "%select{data members|data members of an anonymous union member}1"
  " are const-qualified">;
def note_deleted_copy_ctor_rvalue_reference : Note<
  "copy constructor of %0 is implicitly deleted because field %1 is of "
  "rvalue reference type %2">;
def note_deleted_copy_user_declared_move : Note<
  "copy %select{constructor|assignment operator}0 is implicitly deleted because"
  " %1 has a user-declared move %select{constructor|assignment operator}2">;
def note_deleted_assign_field : Note<
  "%select{copy|move}0 assignment operator of %1 is implicitly deleted "
  "because field %2 is of %select{reference|const-qualified}4 type %3">;

// These should be errors.
def warn_undefined_internal : Warning<
  "%select{function|variable}0 %q1 has internal linkage but is not defined">,
  InGroup<DiagGroup<"undefined-internal">>;
def warn_undefined_inline : Warning<"inline function %q0 is not defined">,
  InGroup<DiagGroup<"undefined-inline">>;
def note_used_here : Note<"used here">;

def warn_internal_in_extern_inline : ExtWarn<
  "static %select{function|variable}0 %1 is used in an inline function with "
  "external linkage">, InGroup<StaticInInline>;
def ext_internal_in_extern_inline : Extension<
  "static %select{function|variable}0 %1 is used in an inline function with "
  "external linkage">, InGroup<StaticInInline>;
def warn_static_local_in_extern_inline : Warning<
  "non-constant static local variable in inline function may be different "
  "in different files">, InGroup<StaticLocalInInline>;
def note_convert_inline_to_static : Note<
  "use 'static' to give inline function %0 internal linkage">;
def note_internal_decl_declared_here : Note<
  "%0 declared here">;

def warn_redefinition_of_typedef : ExtWarn<
  "redefinition of typedef %0 is a C11 feature">,
  InGroup<DiagGroup<"typedef-redefinition"> >;
def err_redefinition_variably_modified_typedef : Error<
  "redefinition of %select{typedef|type alias}0 for variably-modified type %1">;

def err_inline_declaration_block_scope : Error<
  "inline declaration of %0 not allowed in block scope">;
def err_static_non_static : Error<
  "static declaration of %0 follows non-static declaration">;
def err_different_language_linkage : Error<
  "declaration of %0 has a different language linkage">;
def warn_weak_import : Warning <
  "an already-declared variable is made a weak_import declaration %0">;
def warn_static_non_static : ExtWarn<
  "static declaration of %0 follows non-static declaration">;
def err_non_static_static : Error<
  "non-static declaration of %0 follows static declaration">;
def err_extern_non_extern : Error<
  "extern declaration of %0 follows non-extern declaration">;
def err_non_extern_extern : Error<
  "non-extern declaration of %0 follows extern declaration">;
def err_non_thread_thread : Error<
  "non-thread-local declaration of %0 follows thread-local declaration">;
def err_thread_non_thread : Error<
  "thread-local declaration of %0 follows non-thread-local declaration">;
def err_thread_thread_different_kind : Error<
  "thread-local declaration of %0 with %select{static|dynamic}1 initialization "
  "follows declaration with %select{dynamic|static}1 initialization">;
def err_redefinition_different_type : Error<
  "redefinition of %0 with a different type%diff{: $ vs $|}1,2">;
def err_redefinition_different_kind : Error<
  "redefinition of %0 as different kind of symbol">;
def warn_forward_class_redefinition : Warning<
  "redefinition of forward class %0 of a typedef name of an object type is ignored">,
  InGroup<DiagGroup<"objc-forward-class-redefinition">>;
def err_redefinition_different_typedef : Error<
  "%select{typedef|type alias|type alias template}0 "
  "redefinition with different types%diff{ ($ vs $)|}1,2">;
def err_tag_reference_non_tag : Error<
  "elaborated type refers to %select{a non-tag type|a typedef|a type alias|a template|a type alias template}0">;
def err_tag_reference_conflict : Error<
  "implicit declaration introduced by elaborated type conflicts with "
  "%select{a declaration|a typedef|a type alias|a template}0 of the same name">;
def err_dependent_tag_decl : Error<
  "%select{declaration|definition}0 of "
  "%select{struct|interface|union|class|enum}1 in a dependent scope">;
def err_tag_definition_of_typedef : Error<
  "definition of type %0 conflicts with %select{typedef|type alias}1 of the same name">;
def err_conflicting_types : Error<"conflicting types for %0">;
def err_nested_redefinition : Error<"nested redefinition of %0">;
def err_use_with_wrong_tag : Error<
  "use of %0 with tag type that does not match previous declaration">;
def warn_struct_class_tag_mismatch : Warning<
    "%select{struct|interface|class}0%select{| template}1 %2 was previously "
    "declared as a %select{struct|interface|class}3%select{| template}1">,
    InGroup<MismatchedTags>, DefaultIgnore;
def warn_struct_class_previous_tag_mismatch : Warning<
    "%2 defined as %select{a struct|an interface|a class}0%select{| template}1 "
    "here but previously declared as "
    "%select{a struct|an interface|a class}3%select{| template}1">,
     InGroup<MismatchedTags>, DefaultIgnore;
def note_struct_class_suggestion : Note<
    "did you mean %select{struct|interface|class}0 here?">;
def ext_forward_ref_enum : Extension<
  "ISO C forbids forward references to 'enum' types">;
def err_forward_ref_enum : Error<
  "ISO C++ forbids forward references to 'enum' types">;
def ext_ms_forward_ref_enum : Extension<
  "forward references to 'enum' types are a Microsoft extension">, InGroup<Microsoft>;
def ext_forward_ref_enum_def : Extension<
  "redeclaration of already-defined enum %0 is a GNU extension">, InGroup<GNU>;
  
def err_redefinition_of_enumerator : Error<"redefinition of enumerator %0">;
def err_duplicate_member : Error<"duplicate member %0">;
def err_misplaced_ivar : Error<
  "instance variables may not be placed in %select{categories|class extension}0">;
def warn_ivars_in_interface : Warning<
  "declaration of instance variables in the interface is deprecated">,
  InGroup<DiagGroup<"objc-interface-ivars">>, DefaultIgnore;
def ext_enum_value_not_int : Extension<
  "ISO C restricts enumerator values to range of 'int' (%0 is too "
  "%select{small|large}1)">;
def warn_enum_too_large : Warning<
  "enumeration values exceed range of largest integer">;
def warn_enumerator_too_large : Warning<
  "enumerator value %0 is not representable in the largest integer type">;
  
def warn_illegal_constant_array_size : Extension<
  "size of static array must be an integer constant expression">;
def err_vm_decl_in_file_scope : Error<
  "variably modified type declaration not allowed at file scope">;
def err_vm_decl_has_extern_linkage : Error<
  "variably modified type declaration can not have 'extern' linkage">;
def err_typecheck_field_variable_size : Error<
  "fields must have a constant size: 'variable length array in structure' "
  "extension will never be supported">;
def err_vm_func_decl : Error<
  "function declaration cannot have variably modified type">;
def err_array_too_large : Error<
  "array is too large (%0 elements)">;
def warn_array_new_too_large : Warning<"array is too large (%0 elements)">,
  // FIXME PR11644: ", will throw std::bad_array_new_length at runtime"
  InGroup<BadArrayNewLength>;

// -Wpadded, -Wpacked
def warn_padded_struct_field : Warning<
  "padding %select{struct|interface|class}0 %1 with %2 "
  "%select{byte|bit}3%select{|s}4 to align %5">,
  InGroup<Padded>, DefaultIgnore;
def warn_padded_struct_anon_field : Warning<
  "padding %select{struct|interface|class}0 %1 with %2 "
  "%select{byte|bit}3%select{|s}4 to align anonymous bit-field">,
  InGroup<Padded>, DefaultIgnore;
def warn_padded_struct_size : Warning<
  "padding size of %0 with %1 %select{byte|bit}2%select{|s}3 "
  "to alignment boundary">, InGroup<Padded>, DefaultIgnore;
def warn_unnecessary_packed : Warning<
  "packed attribute is unnecessary for %0">, InGroup<Packed>, DefaultIgnore;

def err_typecheck_negative_array_size : Error<"array size is negative">;
def warn_typecheck_negative_array_new_size : Warning<"array size is negative">,
  // FIXME PR11644: ", will throw std::bad_array_new_length at runtime"
  InGroup<BadArrayNewLength>;
def warn_typecheck_function_qualifiers : Warning<
  "qualifier on function type %0 has unspecified behavior">;
def err_typecheck_invalid_restrict_not_pointer : Error<
  "restrict requires a pointer or reference (%0 is invalid)">;
def err_typecheck_invalid_restrict_not_pointer_noarg : Error<
  "restrict requires a pointer or reference">;
def err_typecheck_invalid_restrict_invalid_pointee : Error<
  "pointer to function type %0 may not be 'restrict' qualified">;
def ext_typecheck_zero_array_size : Extension<
  "zero size arrays are an extension">, InGroup<ZeroLengthArray>;
def err_typecheck_zero_array_size : Error<
  "zero-length arrays are not permitted in C++">;
def warn_typecheck_zero_static_array_size : Warning<
  "'static' has no effect on zero-length arrays">,
  InGroup<ArrayBounds>;
def err_array_size_non_int : Error<"size of array has non-integer type %0">;
def err_init_element_not_constant : Error<
  "initializer element is not a compile-time constant">;
def err_local_cant_init : Error<
  "'__local' variable cannot have an initializer">;
def err_block_extern_cant_init : Error<
  "'extern' variable cannot have an initializer">;
def warn_extern_init : Warning<"'extern' variable has an initializer">,
  InGroup<DiagGroup<"extern-initializer">>;
def err_variable_object_no_init : Error<
  "variable-sized object may not be initialized">;
def err_excess_initializers : Error<
  "excess elements in %select{array|vector|scalar|union|struct}0 initializer">;
def warn_excess_initializers : ExtWarn<
  "excess elements in %select{array|vector|scalar|union|struct}0 initializer">;
def err_excess_initializers_in_char_array_initializer : Error<
  "excess elements in char array initializer">;
def warn_excess_initializers_in_char_array_initializer : ExtWarn<
  "excess elements in char array initializer">;
def err_initializer_string_for_char_array_too_long : Error<
  "initializer-string for char array is too long">;
def warn_initializer_string_for_char_array_too_long : ExtWarn<
  "initializer-string for char array is too long">;
def warn_missing_field_initializers : Warning<
  "missing field '%0' initializer">,
  InGroup<MissingFieldInitializers>, DefaultIgnore;
def warn_braces_around_scalar_init : Warning<
  "braces around scalar initializer">;
def warn_many_braces_around_scalar_init : ExtWarn<
  "too many braces around scalar initializer">;
def ext_complex_component_init : Extension<
  "complex initialization specifying real and imaginary components "
  "is an extension">, InGroup<DiagGroup<"complex-component-init">>;
def err_empty_scalar_initializer : Error<"scalar initializer cannot be empty">;
def warn_cxx98_compat_empty_scalar_initializer : Warning<
  "scalar initialized from empty initializer list is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def warn_cxx98_compat_reference_list_init : Warning<
  "reference initialized from initializer list is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def warn_cxx98_compat_initializer_list_init : Warning<
  "initialization of initializer_list object is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def warn_cxx98_compat_ctor_list_init : Warning<
  "constructor call from initializer list is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_illegal_initializer : Error<
  "illegal initializer (only variables can be initialized)">;
def err_illegal_initializer_type : Error<"illegal initializer type %0">;
def err_init_list_type_narrowing_sfinae : Error<
  "type %0 cannot be narrowed to %1 in initializer list">;
def err_init_list_type_narrowing : ExtWarn<
  "type %0 cannot be narrowed to %1 in initializer list">, 
  InGroup<CXX11Narrowing>, DefaultError;
def err_init_list_variable_narrowing_sfinae : Error<
  "non-constant-expression cannot be narrowed from type %0 to %1 in "
  "initializer list">;
def err_init_list_variable_narrowing : ExtWarn<
  "non-constant-expression cannot be narrowed from type %0 to %1 in "
  "initializer list">, InGroup<CXX11Narrowing>, DefaultError;
def err_init_list_constant_narrowing_sfinae : Error<
  "constant expression evaluates to %0 which cannot be narrowed to type %1">;
def err_init_list_constant_narrowing : ExtWarn<
  "constant expression evaluates to %0 which cannot be narrowed to type %1">,
  InGroup<CXX11Narrowing>, DefaultError;
def warn_init_list_type_narrowing : Warning<
  "type %0 cannot be narrowed to %1 in initializer list in C++11">,
  InGroup<CXX11Narrowing>, DefaultIgnore;
def warn_init_list_variable_narrowing : Warning<
  "non-constant-expression cannot be narrowed from type %0 to %1 in "
  "initializer list in C++11">,
  InGroup<CXX11Narrowing>, DefaultIgnore;
def warn_init_list_constant_narrowing : Warning<
  "constant expression evaluates to %0 which cannot be narrowed to type %1 in "
  "C++11">,
  InGroup<CXX11Narrowing>, DefaultIgnore;
def note_init_list_narrowing_override : Note<
  "override this message by inserting an explicit cast">;
def err_init_objc_class : Error<
  "cannot initialize Objective-C class type %0">;
def err_implicit_empty_initializer : Error<
  "initializer for aggregate with no elements requires explicit braces">;
def err_bitfield_has_negative_width : Error<
  "bit-field %0 has negative width (%1)">;
def err_anon_bitfield_has_negative_width : Error<
  "anonymous bit-field has negative width (%0)">;
def err_bitfield_has_zero_width : Error<"named bit-field %0 has zero width">;
def err_bitfield_width_exceeds_type_size : Error<
  "size of bit-field %0 (%1 bits) exceeds size of its type (%2 bits)">;
def err_anon_bitfield_width_exceeds_type_size : Error<
  "size of anonymous bit-field (%0 bits) exceeds size of its type (%1 bits)">;
def err_incorrect_number_of_vector_initializers : Error<
  "number of elements must be either one or match the size of the vector">;

// Used by C++ which allows bit-fields that are wider than the type.
def warn_bitfield_width_exceeds_type_size: Warning<
  "size of bit-field %0 (%1 bits) exceeds the size of its type; value will be "
  "truncated to %2 bits">;
def warn_anon_bitfield_width_exceeds_type_size : Warning<
  "size of anonymous bit-field (%0 bits) exceeds size of its type; value will "
  "be truncated to %1 bits">;

def warn_missing_braces : Warning<
  "suggest braces around initialization of subobject">,
  InGroup<MissingBraces>, DefaultIgnore;
def err_missing_braces : Error<
  "cannot omit braces around initialization of subobject when using direct "
  "list-initialization">;

def err_redefinition_of_label : Error<"redefinition of label %0">;
def err_undeclared_label_use : Error<"use of undeclared label %0">;
def warn_unused_label : Warning<"unused label %0">,
  InGroup<UnusedLabel>, DefaultIgnore;

def err_goto_into_protected_scope : Error<"goto into protected scope">;
def warn_goto_into_protected_scope : ExtWarn<"goto into protected scope">,
  InGroup<Microsoft>;
def warn_cxx98_compat_goto_into_protected_scope : Warning<
  "goto would jump into protected scope in C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_switch_into_protected_scope : Error<
  "switch case is in protected scope">;
def warn_cxx98_compat_switch_into_protected_scope : Warning<
  "switch case would be in a protected scope in C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def err_indirect_goto_without_addrlabel : Error<
  "indirect goto in function with no address-of-label expressions">;
def err_indirect_goto_in_protected_scope : Error<
  "indirect goto might cross protected scopes">;
def warn_cxx98_compat_indirect_goto_in_protected_scope : Warning<
  "indirect goto might cross protected scopes in C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;
def note_indirect_goto_target : Note<"possible target of indirect goto">;
def note_protected_by_variable_init : Note<
  "jump bypasses variable initialization">;
def note_protected_by_variable_nontriv_destructor : Note<
  "jump bypasses variable with a non-trivial destructor">;
def note_protected_by_variable_non_pod : Note<
  "jump bypasses initialization of non-POD variable">;
def note_protected_by_cleanup : Note<
  "jump bypasses initialization of variable with __attribute__((cleanup))">;
def note_protected_by_vla_typedef : Note<
  "jump bypasses initialization of VLA typedef">;
def note_protected_by_vla_type_alias : Note<
  "jump bypasses initialization of VLA type alias">;
def note_protected_by_vla : Note<
  "jump bypasses initialization of variable length array">;
def note_protected_by_objc_try : Note<
  "jump bypasses initialization of @try block">;
def note_protected_by_objc_catch : Note<
  "jump bypasses initialization of @catch block">;
def note_protected_by_objc_finally : Note<
  "jump bypasses initialization of @finally block">;
def note_protected_by_objc_synchronized : Note<
  "jump bypasses initialization of @synchronized block">;
def note_protected_by_objc_autoreleasepool : Note<
  "jump bypasses auto release push of @autoreleasepool block">;
def note_protected_by_cxx_try : Note<
  "jump bypasses initialization of try block">;
def note_protected_by_cxx_catch : Note<
  "jump bypasses initialization of catch block">;
def note_protected_by___block : Note<
  "jump bypasses setup of __block variable">;
def note_protected_by_objc_ownership : Note<
  "jump bypasses initialization of retaining variable">;
def note_enters_block_captures_cxx_obj : Note<
  "jump enters lifetime of block which captures a destructible C++ object">;
def note_enters_block_captures_strong : Note<
  "jump enters lifetime of block which strongly captures a variable">;
def note_enters_block_captures_weak : Note<
  "jump enters lifetime of block which weakly captures a variable">;

def note_exits_cleanup : Note<
  "jump exits scope of variable with __attribute__((cleanup))">;
def note_exits_dtor : Note<
  "jump exits scope of variable with non-trivial destructor">;
def note_exits___block : Note<
  "jump exits scope of __block variable">;
def note_exits_objc_try : Note<
  "jump exits @try block">;
def note_exits_objc_catch : Note<
  "jump exits @catch block">;
def note_exits_objc_finally : Note<
  "jump exits @finally block">;
def note_exits_objc_synchronized : Note<
  "jump exits @synchronized block">;
def note_exits_cxx_try : Note<
  "jump exits try block">;
def note_exits_cxx_catch : Note<
  "jump exits catch block">;
def note_exits_objc_autoreleasepool : Note<
  "jump exits autoreleasepool block">;
def note_exits_objc_ownership : Note<
  "jump exits scope of retaining variable">;
def note_exits_block_captures_cxx_obj : Note<
  "jump exits lifetime of block which captures a destructible C++ object">;
def note_exits_block_captures_strong : Note<
  "jump exits lifetime of block which strongly captures a variable">;
def note_exits_block_captures_weak : Note<
  "jump exits lifetime of block which weakly captures a variable">;

def err_func_returning_array_function : Error<
  "function cannot return %select{array|function}0 type %1">;
def err_field_declared_as_function : Error<"field %0 declared as a function">;
def err_field_incomplete : Error<"field has incomplete type %0">;
def ext_variable_sized_type_in_struct : ExtWarn<
  "field %0 with variable sized type %1 not at the end of a struct or class is"
  " a GNU extension">, InGroup<GNU>;

def err_flexible_array_empty_struct : Error<
  "flexible array %0 not allowed in otherwise empty struct">;
def err_flexible_array_has_nonpod_type : Error<
  "flexible array member %0 of non-POD element type %1">;
def ext_flexible_array_in_struct : Extension<
  "%0 may not be nested in a struct due to flexible array member">,
  InGroup<FlexibleArrayExtensions>;
def ext_flexible_array_in_array : Extension<
  "%0 may not be used as an array element due to flexible array member">,
  InGroup<FlexibleArrayExtensions>;
def err_flexible_array_init : Error<
  "initialization of flexible array member is not allowed">;
def ext_flexible_array_empty_aggregate_ms : Extension<
  "flexible array member %0 in otherwise empty "
  "%select{struct|interface|union|class|enum}1 is a Microsoft extension">,
  InGroup<Microsoft>;
def ext_flexible_array_union_ms : Extension<
  "flexible array member %0 in a union is a Microsoft extension">,
  InGroup<Microsoft>;
def ext_flexible_array_empty_aggregate_gnu : Extension<
  "flexible array member %0 in otherwise empty "
  "%select{struct|interface|union|class|enum}1 is a GNU extension">,
  InGroup<GNU>;
def ext_flexible_array_union_gnu : Extension<
  "flexible array member %0 in a union is a GNU extension">, InGroup<GNU>;

let CategoryName = "ARC Semantic Issue" in {

// ARC-mode diagnostics.

let CategoryName = "ARC Weak References" in {

def err_arc_weak_no_runtime : Error<
  "the current deployment target does not support automated __weak references">;
def err_arc_unsupported_weak_class : Error<
  "class is incompatible with __weak references">;
def err_arc_weak_unavailable_assign : Error<
  "assignment of a weak-unavailable object to a __weak object">;
def err_arc_weak_unavailable_property : Error<
  "synthesis of a weak-unavailable property is disallowed "
  "because it requires synthesis of an instance variable of the __weak object">;
def err_arc_convesion_of_weak_unavailable : Error<
  "%select{implicit conversion|cast}0 of weak-unavailable object of type %1 to"
  " a __weak object of type %2">;

} // end "ARC Weak References" category

let CategoryName = "ARC Restrictions" in {

def err_arc_illegal_explicit_message : Error<
  "ARC forbids explicit message send of %0">;
def err_arc_unused_init_message : Error<
  "the result of a delegate init call must be immediately returned "
  "or assigned to 'self'">;
def err_arc_mismatched_cast : Error<
  "%select{implicit conversion|cast}0 of "
  "%select{%2|a non-Objective-C pointer type %2|a block pointer|"
  "an Objective-C pointer|an indirect pointer to an Objective-C pointer}1"
  " to %3 is disallowed with ARC">;
def err_arc_nolifetime_behavior : Error<
  "explicit ownership qualifier on cast result has no effect">;
def err_arc_objc_object_in_tag : Error<
  "ARC forbids %select{Objective-C objects|blocks}0 in "
  "%select{struct|interface|union|<<ERROR>>|enum}1">;
def err_arc_objc_property_default_assign_on_object : Error<
  "ARC forbids synthesizing a property of an Objective-C object "
  "with unspecified ownership or storage attribute">;
def err_arc_illegal_selector : Error<
  "ARC forbids use of %0 in a @selector">;
def err_arc_illegal_method_def : Error<
  "ARC forbids implementation of %0">;
def warn_arc_strong_pointer_objc_pointer : Warning<
  "method parameter of type %0 with no explicit ownership">,
  InGroup<DiagGroup<"explicit-ownership-type">>, DefaultIgnore;
  
} // end "ARC Restrictions" category
  
def err_arc_lost_method_convention : Error<
  "method was declared as %select{an 'alloc'|a 'copy'|an 'init'|a 'new'}0 "
  "method, but its implementation doesn't match because %select{"
  "its result type is not an object pointer|"
  "its result type is unrelated to its receiver type}1">;
def note_arc_lost_method_convention : Note<"declaration in interface">;
def err_arc_gained_method_convention : Error<
  "method implementation does not match its declaration">;
def note_arc_gained_method_convention : Note<
  "declaration in interface is not in the '%select{alloc|copy|init|new}0' "
  "family because %select{its result type is not an object pointer|"
  "its result type is unrelated to its receiver type}1">;
def err_typecheck_arc_assign_self : Error<
  "cannot assign to 'self' outside of a method in the init family">;
def err_typecheck_arc_assign_self_class_method : Error<
  "cannot assign to 'self' in a class method">;
def err_typecheck_arr_assign_enumeration : Error<
  "fast enumeration variables can't be modified in ARC by default; "
  "declare the variable __strong to allow this">;
def warn_arc_retained_assign : Warning<
  "assigning retained object to %select{weak|unsafe_unretained}0 "
  "%select{property|variable}1"
  "; object will be released after assignment">,
  InGroup<ARCUnsafeRetainedAssign>;
def warn_arc_retained_property_assign : Warning<
  "assigning retained object to unsafe property"
  "; object will be released after assignment">,
  InGroup<ARCUnsafeRetainedAssign>;
def warn_arc_literal_assign : Warning<
  "assigning %select{array literal|dictionary literal|numeric literal|boxed expression|<should not happen>|block literal}0"
  " to a weak %select{property|variable}1"
  "; object will be released after assignment">,
  InGroup<ARCUnsafeRetainedAssign>;
def err_arc_new_array_without_ownership : Error<
  "'new' cannot allocate an array of %0 with no explicit ownership">;
def err_arc_autoreleasing_var : Error<
  "%select{__block variables|global variables|fields|instance variables}0 cannot have "
  "__autoreleasing ownership">;
def err_arc_autoreleasing_capture : Error<
  "cannot capture __autoreleasing variable in a "
  "%select{block|lambda by copy}0">;
def err_arc_thread_ownership : Error<
  "thread-local variable has non-trivial ownership: type is %0">;
def err_arc_indirect_no_ownership : Error<
  "%select{pointer|reference}1 to non-const type %0 with no explicit ownership">;
def err_arc_array_param_no_ownership : Error<
  "must explicitly describe intended ownership of an object array parameter">;
def err_arc_pseudo_dtor_inconstant_quals : Error<
  "pseudo-destructor destroys object of type %0 with inconsistently-qualified "
  "type %1">;
def err_arc_init_method_unrelated_result_type : Error<
  "init methods must return a type related to the receiver type">;
def err_arc_nonlocal_writeback : Error<
  "passing address of %select{non-local|non-scalar}0 object to "
  "__autoreleasing parameter for write-back">;
def err_arc_method_not_found : Error<
  "no known %select{instance|class}1 method for selector %0">;
def err_arc_receiver_forward_class : Error<
  "receiver %0 for class message is a forward declaration">;
def err_arc_may_not_respond : Error<
  "no visible @interface for %0 declares the selector %1">;
def err_arc_receiver_forward_instance : Error<
  "receiver type %0 for instance message is a forward declaration">;
def warn_receiver_forward_instance : Warning<
  "receiver type %0 for instance message is a forward declaration">,
  InGroup<ForwardClassReceiver>, DefaultIgnore;
def err_arc_collection_forward : Error<
  "collection expression type %0 is a forward declaration">;
def err_arc_multiple_method_decl : Error< 
  "multiple methods named %0 found with mismatched result, "
  "parameter type or attributes">;
def warn_arc_lifetime_result_type : Warning<
  "ARC %select{unused|__unsafe_unretained|__strong|__weak|__autoreleasing}0 "
  "lifetime qualifier on return type is ignored">,
  InGroup<IgnoredQualifiers>;

let CategoryName = "ARC Retain Cycle" in {

def warn_arc_retain_cycle : Warning<
  "capturing %0 strongly in this block is likely to lead to a retain cycle">,
  InGroup<ARCRetainCycles>;
def note_arc_retain_cycle_owner : Note<
  "block will be retained by %select{the captured object|an object strongly "
  "retained by the captured object}0">;

} // end "ARC Retain Cycle" category

def warn_arc_object_memaccess : Warning<
  "%select{destination for|source of}0 this %1 call is a pointer to "
  "ownership-qualified type %2">, InGroup<ARCNonPodMemAccess>;

let CategoryName = "ARC and @properties" in {

def err_arc_strong_property_ownership : Error<
  "existing instance variable %1 for strong property %0 may not be "
  "%select{|__unsafe_unretained||__weak}2">;
def err_arc_assign_property_ownership : Error<
  "existing instance variable %1 for property %0 with %select{unsafe_unretained| assign}2 "
  "attribute must be __unsafe_unretained">;
def err_arc_inconsistent_property_ownership : Error<
  "%select{|unsafe_unretained|strong|weak}1 property %0 may not also be "
  "declared %select{|__unsafe_unretained|__strong|__weak|__autoreleasing}2">;

} // end "ARC and @properties" category

def err_arc_atomic_ownership : Error<
  "cannot perform atomic operation on a pointer to type %0: type has "
  "non-trivial ownership">;

let CategoryName = "ARC Casting Rules" in {

def err_arc_bridge_cast_incompatible : Error<
  "incompatible types casting %0 to %1 with a %select{__bridge|"
  "__bridge_transfer|__bridge_retained}2 cast">;
def err_arc_bridge_cast_wrong_kind : Error<
  "cast of %select{Objective-C|block|C}0 pointer type %1 to "
  "%select{Objective-C|block|C}2 pointer type %3 cannot use %select{__bridge|"
  "__bridge_transfer|__bridge_retained}4">;
def err_arc_cast_requires_bridge : Error<
  "%select{cast|implicit conversion}0 of %select{Objective-C|block|C}1 "
  "pointer type %2 to %select{Objective-C|block|C}3 pointer type %4 "
  "requires a bridged cast">;
def note_arc_bridge : Note<
  "use __bridge to convert directly (no change in ownership)">;
def note_arc_cstyle_bridge : Note<
  "use __bridge with C-style cast to convert directly (no change in ownership)">;
def note_arc_bridge_transfer : Note<
  "use %select{__bridge_transfer|CFBridgingRelease call}1 to transfer "
  "ownership of a +1 %0 into ARC">;
def note_arc_cstyle_bridge_transfer : Note<
  "use __bridge_transfer with C-style cast to transfer "
  "ownership of a +1 %0 into ARC">;
def note_arc_bridge_retained : Note<
  "use %select{__bridge_retained|CFBridgingRetain call}1 to make an "
  "ARC object available as a +1 %0">;
def note_arc_cstyle_bridge_retained : Note<
  "use __bridge_retained with C-style cast to make an "
  "ARC object available as a +1 %0">;

} // ARC Casting category

} // ARC category name

def err_flexible_array_init_needs_braces : Error<
  "flexible array requires brace-enclosed initializer">;
def err_illegal_decl_array_of_functions : Error<
  "'%0' declared as array of functions of type %1">;
def err_illegal_decl_array_incomplete_type : Error<
  "array has incomplete element type %0">;
def err_illegal_message_expr_incomplete_type : Error<
  "Objective-C message has incomplete result type %0">;
def err_illegal_decl_array_of_references : Error<
  "'%0' declared as array of references of type %1">;
def err_decl_negative_array_size : Error<
  "'%0' declared as an array with a negative size">;
def err_array_static_outside_prototype : Error<
  "%0 used in array declarator outside of function prototype">;
def err_array_static_not_outermost : Error<
  "%0 used in non-outermost array type derivation">;
def err_array_star_outside_prototype : Error<
  "star modifier used outside of function prototype">;
def err_illegal_decl_pointer_to_reference : Error<
  "'%0' declared as a pointer to a reference of type %1">;
def err_illegal_decl_mempointer_to_reference : Error<
  "'%0' declared as a member pointer to a reference of type %1">;
def err_illegal_decl_mempointer_to_void : Error<
  "'%0' declared as a member pointer to void">;
def err_illegal_decl_mempointer_in_nonclass : Error<
  "'%0' does not point into a class">;
def err_mempointer_in_nonclass_type : Error<
  "member pointer refers into non-class type %0">;
def err_reference_to_void : Error<"cannot form a reference to 'void'">;
def err_nonfunction_block_type : Error<
  "block pointer to non-function type is invalid">;
def err_return_block_has_expr : Error<"void block should not return a value">;
def err_block_return_missing_expr : Error<
  "non-void block should return a value">;
def err_func_def_incomplete_result : Error<
  "incomplete result type %0 in function definition">;
def err_atomic_specifier_bad_type : Error<
  "_Atomic cannot be applied to "
  "%select{incomplete |array |function |reference |atomic |qualified |}0type "
  "%1 %select{||||||which is not trivially copyable}0">;

// Expressions.
def ext_sizeof_alignof_function_type : Extension<
  "invalid application of '%select{sizeof|alignof|vec_step}0' to a "
  "function type">, InGroup<PointerArith>;
def ext_sizeof_alignof_void_type : Extension<
  "invalid application of '%select{sizeof|alignof|vec_step}0' to a void "
  "type">, InGroup<PointerArith>;
def err_sizeof_alignof_incomplete_type : Error<
  "invalid application of '%select{sizeof|alignof|vec_step}0' to an "
  "incomplete type %1">;
def err_sizeof_alignof_bitfield : Error<
  "invalid application of '%select{sizeof|alignof}0' to bit-field">;
def err_vecstep_non_scalar_vector_type : Error<
  "'vec_step' requires built-in scalar or vector type, %0 invalid">;
def err_offsetof_incomplete_type : Error<
  "offsetof of incomplete type %0">;
def err_offsetof_record_type : Error<
  "offsetof requires struct, union, or class type, %0 invalid">;
def err_offsetof_array_type : Error<"offsetof requires array type, %0 invalid">;
def ext_offsetof_extended_field_designator : Extension<
  "using extended field designator is an extension">,
  InGroup<DiagGroup<"extended-offsetof">>;
def warn_offsetof_non_pod_type : ExtWarn<"offset of on non-POD type %0">,
  InGroup<InvalidOffsetof>;
def warn_offsetof_non_standardlayout_type : ExtWarn<
  "offset of on non-standard-layout type %0">, InGroup<InvalidOffsetof>;
def err_offsetof_bitfield : Error<"cannot compute offset of bit-field %0">;

def warn_floatingpoint_eq : Warning<
  "comparing floating point with == or != is unsafe">,
  InGroup<DiagGroup<"float-equal">>, DefaultIgnore;

def warn_division_by_zero : Warning<"division by zero is undefined">,
  InGroup<DivZero>;
def warn_remainder_by_zero : Warning<"remainder by zero is undefined">,
  InGroup<DivZero>;
def warn_shift_negative : Warning<"shift count is negative">,
  InGroup<DiagGroup<"shift-count-negative">>;
def warn_shift_gt_typewidth : Warning<"shift count >= width of type">,
  InGroup<DiagGroup<"shift-count-overflow">>;
def warn_shift_result_gt_typewidth : Warning<
  "signed shift result (%0) requires %1 bits to represent, but %2 only has "
  "%3 bits">, InGroup<DiagGroup<"shift-overflow">>;
def warn_shift_result_sets_sign_bit : Warning<
  "signed shift result (%0) sets the sign bit of the shift expression's "
  "type (%1) and becomes negative">,
  InGroup<DiagGroup<"shift-sign-overflow">>, DefaultIgnore;

def warn_precedence_bitwise_rel : Warning<
  "%0 has lower precedence than %1; %1 will be evaluated first">,
  InGroup<Parentheses>;
def note_precedence_bitwise_first : Note<
  "place parentheses around the %0 expression to evaluate it first">;
def note_precedence_silence : Note<
  "place parentheses around the '%0' expression to silence this warning">;

def warn_precedence_conditional : Warning<
  "operator '?:' has lower precedence than '%0'; '%0' will be evaluated first">,
  InGroup<Parentheses>;
def note_precedence_conditional_first : Note<
  "place parentheses around the '?:' expression to evaluate it first">;

def warn_logical_instead_of_bitwise : Warning<
  "use of logical '%0' with constant operand">,
  InGroup<DiagGroup<"constant-logical-operand">>;
def note_logical_instead_of_bitwise_change_operator : Note<
  "use '%0' for a bitwise operation">;
def note_logical_instead_of_bitwise_remove_constant : Note<
  "remove constant to silence this warning">;

def warn_bitwise_and_in_bitwise_or : Warning<
  "'&' within '|'">, InGroup<BitwiseOpParentheses>;

def warn_logical_and_in_logical_or : Warning<
  "'&&' within '||'">, InGroup<LogicalOpParentheses>;

def warn_overloaded_shift_in_comparison :Warning<
  "overloaded operator %select{>>|<<}0 has lower precedence than "
  "comparison operator">,
  InGroup<OverloadedShiftOpParentheses>;
def note_evaluate_comparison_first :Note<
  "place parentheses around comparison expression to evaluate it first">;

def warn_addition_in_bitshift : Warning<
  "operator '%0' has lower precedence than '%1'; "
  "'%1' will be evaluated first">, InGroup<ShiftOpParentheses>;

def warn_self_assignment : Warning<
  "explicitly assigning a variable of type %0 to itself">,
  InGroup<SelfAssignment>, DefaultIgnore;

def warn_string_plus_int : Warning<
  "adding %0 to a string does not append to the string">,
  InGroup<StringPlusInt>;
def note_string_plus_int_silence : Note<
  "use array indexing to silence this warning">;

def warn_sizeof_array_param : Warning<
  "sizeof on array function parameter will return size of %0 instead of %1">,
  InGroup<SizeofArrayArgument>;

def warn_sizeof_array_decay : Warning<
  "sizeof on pointer operation will return size of %0 instead of %1">,
  InGroup<SizeofArrayDecay>;

def err_sizeof_nonfragile_interface : Error<
  "application of '%select{alignof|sizeof}1' to interface %0 is "
  "not supported on this architecture and platform">;
def err_atdef_nonfragile_interface : Error<
  "use of @defs is not supported on this architecture and platform">;
def err_subscript_nonfragile_interface : Error<
  "subscript requires size of interface %0, which is not constant for "
  "this architecture and platform">;

def err_arithmetic_nonfragile_interface : Error<
  "arithmetic on pointer to interface %0, which is not a constant size for "
  "this architecture and platform">;


def ext_subscript_non_lvalue : Extension<
  "ISO C90 does not allow subscripting non-lvalue array">;
def err_typecheck_subscript_value : Error<
  "subscripted value is not an array, pointer, or vector">;
def err_typecheck_subscript_not_integer : Error<
  "array subscript is not an integer">;
def err_subscript_function_type : Error<
  "subscript of pointer to function type %0">;
def err_subscript_incomplete_type : Error<
  "subscript of pointer to incomplete type %0">;
def err_dereference_incomplete_type : Error<
  "dereference of pointer to incomplete type %0">;
def ext_gnu_subscript_void_type : Extension<
  "subscript of a pointer to void is a GNU extension">, InGroup<PointerArith>;
def err_typecheck_member_reference_struct_union : Error<
  "member reference base type %0 is not a structure or union">;
def err_typecheck_member_reference_ivar : Error<
  "%0 does not have a member named %1">;
def error_arc_weak_ivar_access : Error<
  "dereferencing a __weak pointer is not allowed due to possible "
  "null value caused by race condition, assign it to strong variable first">;
def err_typecheck_member_reference_arrow : Error<
  "member reference type %0 is not a pointer">;
def err_typecheck_member_reference_suggestion : Error<
  "member reference type %0 is %select{a|not a}1 pointer; maybe you meant to use '%select{->|.}1'?">;
def err_typecheck_member_reference_type : Error<
  "cannot refer to type member %0 in %1 with '%select{.|->}2'">;
def err_typecheck_member_reference_unknown : Error<
  "cannot refer to member %0 in %1 with '%select{.|->}2'">;
def err_member_reference_needs_call : Error<
  "base of member reference is a function; perhaps you meant to call "
  "it%select{| with no arguments}0?">;
def warn_subscript_is_char : Warning<"array subscript is of type 'char'">,
  InGroup<CharSubscript>, DefaultIgnore;

def err_typecheck_incomplete_tag : Error<"incomplete definition of type %0">;
def err_no_member : Error<"no member named %0 in %1">;
def err_no_member_overloaded_arrow : Error<
  "no member named %0 in %1; did you mean to use '->' instead of '.'?">;

def err_member_not_yet_instantiated : Error<
  "no member %0 in %1; it has not yet been instantiated">;
def note_non_instantiated_member_here : Note<
  "not-yet-instantiated member is declared here">;

def err_enumerator_does_not_exist : Error<
  "enumerator %0 does not exist in instantiation of %1">;
def note_enum_specialized_here : Note<
  "enum %0 was explicitly specialized here">;

def err_member_redeclared : Error<"class member cannot be redeclared">;
def err_member_redeclared_in_instantiation : Error<
  "multiple overloads of %0 instantiate to the same signature %1">;
def err_member_name_of_class : Error<"member %0 has the same name as its class">;
def err_member_def_undefined_record : Error<
  "out-of-line definition of %0 from class %1 without definition">;
def err_member_def_does_not_match : Error<
  "out-of-line definition of %0 does not match any declaration in %1">;
def err_friend_decl_does_not_match : Error<
  "friend declaration of %0 does not match any declaration in %1">;
def err_member_def_does_not_match_suggest : Error<
  "out-of-line definition of %0 does not match any declaration in %1; "
  "did you mean %2?">;
def err_member_def_does_not_match_ret_type : Error<
  "out-of-line definition of %q0 differs from the declaration in the return type">;
def err_nonstatic_member_out_of_line : Error<
  "non-static data member defined out-of-line">;
def err_qualified_typedef_declarator : Error<
  "typedef declarator cannot be qualified">;
def err_qualified_param_declarator : Error<
  "parameter declarator cannot be qualified">;
def ext_out_of_line_declaration : ExtWarn<
  "out-of-line declaration of a member must be a definition">,
  InGroup<OutOfLineDeclaration>, DefaultError;
def warn_member_extra_qualification : Warning<
  "extra qualification on member %0">, InGroup<Microsoft>;
def err_member_extra_qualification : Error<
  "extra qualification on member %0">;
def err_member_qualification : Error<
  "non-friend class member %0 cannot have a qualified name">;  
def note_member_def_close_match : Note<"member declaration nearly matches">;
def note_member_def_close_const_match : Note<
  "member declaration does not match because "
  "it %select{is|is not}0 const qualified">;
def note_member_def_close_param_match : Note<
  "type of %ordinal0 parameter of member declaration does not match definition"
  "%diff{ ($ vs $)|}1,2">;
def err_typecheck_ivar_variable_size : Error<
  "instance variables must have a constant size">;
def err_ivar_reference_type : Error<
  "instance variables cannot be of reference type">;
def err_typecheck_illegal_increment_decrement : Error<
  "cannot %select{decrement|increment}1 value of type %0">;
def err_typecheck_arithmetic_incomplete_type : Error<
  "arithmetic on a pointer to an incomplete type %0">;
def err_typecheck_pointer_arith_function_type : Error<
  "arithmetic on%select{ a|}0 pointer%select{|s}0 to%select{ the|}2 "
  "function type%select{|s}2 %1%select{| and %3}2">;
def err_typecheck_pointer_arith_void_type : Error<
  "arithmetic on%select{ a|}0 pointer%select{|s}0 to void">;
def err_typecheck_decl_incomplete_type : Error<
  "variable has incomplete type %0">;
def ext_typecheck_decl_incomplete_type : ExtWarn<
  "tentative definition of variable with internal linkage has incomplete non-array type %0">,
  InGroup<DiagGroup<"tentative-definition-incomplete-type">>;
def err_tentative_def_incomplete_type : Error<
  "tentative definition has type %0 that is never completed">;
def err_tentative_def_incomplete_type_arr : Error<
  "tentative definition has array of type %0 that is never completed">;
def warn_tentative_incomplete_array : Warning<
  "tentative array definition assumed to have one element">;
def err_typecheck_incomplete_array_needs_initializer : Error<
  "definition of variable with array type needs an explicit size "
  "or an initializer">;
def err_array_init_not_init_list : Error<
  "array initializer must be an initializer "
  "list%select{| or string literal}0">;
def err_array_init_different_type : Error<
  "cannot initialize array %diff{of type $ with array of type $|"
  "with different type of array}0,1">;
def err_array_init_non_constant_array : Error<
  "cannot initialize array %diff{of type $ with non-constant array of type $|"
  "with different type of array}0,1">;
def ext_array_init_copy : Extension<
  "initialization of an array "
  "%diff{of type $ from a compound literal of type $|"
  "from a compound literal}0,1 is a GNU extension">, InGroup<GNU>;
// This is intentionally not disabled by -Wno-gnu.
def ext_array_init_parens : ExtWarn<
  "parenthesized initialization of a member array is a GNU extension">,
  InGroup<DiagGroup<"gnu-array-member-paren-init">>, DefaultError;
def warn_deprecated_string_literal_conversion : Warning<
  "conversion from string literal to %0 is deprecated">, InGroup<DeprecatedWritableStr>;
def err_realimag_invalid_type : Error<"invalid type %0 to %1 operator">;
def err_typecheck_sclass_fscope : Error<
  "illegal storage class on file-scoped variable">;
def err_unsupported_global_register : Error<
  "global register variables are not supported">;
def warn_standalone_specifier : Warning<"'%0' ignored on this declaration">,
  InGroup<MissingDeclarations>;
def ext_standalone_specifier : ExtWarn<"'%0' is not permitted on a declaration "
  "of a type">, InGroup<MissingDeclarations>;
def err_standalone_class_nested_name_specifier : Error<
  "forward declaration of %select{class|struct|interface|union|enum}0 cannot "
  "have a nested name specifier">;
def err_typecheck_sclass_func : Error<"illegal storage class on function">;
def err_static_block_func : Error<
  "function declared in block scope cannot have 'static' storage class">;
def err_typecheck_address_of : Error<"address of %select{bit-field"
  "|vector element|property expression|register variable}0 requested">;
def ext_typecheck_addrof_void : Extension<
  "ISO C forbids taking the address of an expression of type 'void'">;
def err_unqualified_pointer_member_function : Error<
  "must explicitly qualify name of member function when taking its address">;
def err_invalid_form_pointer_member_function : Error<
  "cannot create a non-constant pointer to member function">;
def err_parens_pointer_member_function : Error<
  "cannot parenthesize the name of a method when forming a member pointer">;
def err_typecheck_invalid_lvalue_addrof_addrof_function : Error<
  "extra '&' taking address of overloaded function">;
def err_typecheck_invalid_lvalue_addrof : Error<
  "cannot take the address of an rvalue of type %0">;
def ext_typecheck_addrof_temporary : ExtWarn<
  "taking the address of a temporary object of type %0">, 
  InGroup<DiagGroup<"address-of-temporary">>, DefaultError;
def err_typecheck_addrof_temporary : Error<
  "taking the address of a temporary object of type %0">;
def err_typecheck_unary_expr : Error<
  "invalid argument type %0 to unary expression">;
def err_typecheck_indirection_requires_pointer : Error<
  "indirection requires pointer operand (%0 invalid)">;
def warn_indirection_through_null : Warning<
  "indirection of non-volatile null pointer will be deleted, not trap">, InGroup<NullDereference>;
def note_indirection_through_null : Note<
  "consider using __builtin_trap() or qualifying pointer with 'volatile'">;
def warn_pointer_indirection_from_incompatible_type : Warning<
  "dereference of type %1 that was reinterpret_cast from type %0 has undefined "
  "behavior">,
  InGroup<UndefinedReinterpretCast>, DefaultIgnore;

def err_objc_object_assignment : Error<
  "cannot assign to class object (%0 invalid)">;
def err_typecheck_invalid_operands : Error<
  "invalid operands to binary expression (%0 and %1)">;
def err_typecheck_sub_ptr_compatible : Error<
  "%diff{$ and $ are not pointers to compatible types|"
  "pointers to incompatible types}0,1">;
def ext_typecheck_ordered_comparison_of_pointer_integer : ExtWarn<
  "ordered comparison between pointer and integer (%0 and %1)">;
def ext_typecheck_ordered_comparison_of_pointer_and_zero : Extension<
  "ordered comparison between pointer and zero (%0 and %1) is an extension">;
def ext_typecheck_ordered_comparison_of_function_pointers : ExtWarn<
  "ordered comparison of function pointers (%0 and %1)">;
def ext_typecheck_comparison_of_fptr_to_void : Extension<
  "equality comparison between function pointer and void pointer (%0 and %1)">;
def err_typecheck_comparison_of_fptr_to_void : Error<
  "equality comparison between function pointer and void pointer (%0 and %1)">;
def ext_typecheck_comparison_of_pointer_integer : ExtWarn<
  "comparison between pointer and integer (%0 and %1)">;
def err_typecheck_comparison_of_pointer_integer : Error<
  "comparison between pointer and integer (%0 and %1)">;
def ext_typecheck_comparison_of_distinct_pointers : ExtWarn<
  "comparison of distinct pointer types%diff{ ($ and $)|}0,1">,
  InGroup<CompareDistinctPointerType>;
def ext_typecheck_cond_incompatible_operands : ExtWarn<
  "incompatible operand types (%0 and %1)">;
def err_cond_voidptr_arc : Error <
  "operands to conditional of types%diff{ $ and $|}0,1 are incompatible "
  "in ARC mode">;
def err_typecheck_comparison_of_distinct_pointers : Error<
  "comparison of distinct pointer types%diff{ ($ and $)|}0,1">;
def ext_typecheck_comparison_of_distinct_pointers_nonstandard : ExtWarn<
  "comparison of distinct pointer types (%0 and %1) uses non-standard "
  "composite pointer type %2">, InGroup<CompareDistinctPointerType>;
def err_typecheck_assign_const : Error<"read-only variable is not assignable">;
def err_stmtexpr_file_scope : Error<
  "statement expression not allowed at file scope">;
def warn_mixed_sign_comparison : Warning<
  "comparison of integers of different signs: %0 and %1">,
  InGroup<SignCompare>, DefaultIgnore;
def warn_lunsigned_always_true_comparison : Warning<
  "comparison of unsigned%select{| enum}2 expression %0 is always %1">,
  InGroup<TautologicalCompare>;
def warn_out_of_range_compare : Warning<
  "comparison of constant %0 with expression of type %1 is always "
  "%select{false|true}2">, InGroup<TautologicalOutOfRangeCompare>;
def warn_runsigned_always_true_comparison : Warning<
  "comparison of %0 unsigned%select{| enum}2 expression is always %1">,
  InGroup<TautologicalCompare>;
def warn_comparison_of_mixed_enum_types : Warning<
  "comparison of two values with different enumeration types"
  "%diff{ ($ and $)|}0,1">,
  InGroup<DiagGroup<"enum-compare">>;
def warn_null_in_arithmetic_operation : Warning<
  "use of NULL in arithmetic operation">,
  InGroup<NullArithmetic>;
def warn_null_in_comparison_operation : Warning<
  "comparison between NULL and non-pointer "
  "%select{(%1 and NULL)|(NULL and %1)}0">,
  InGroup<NullArithmetic>;

def err_invalid_this_use : Error<
  "invalid use of 'this' outside of a non-static member function">;
def err_this_static_member_func : Error<
  "'this' cannot be%select{| implicitly}0 used in a static member function "
  "declaration">;
def err_invalid_member_use_in_static_method : Error<
  "invalid use of member %0 in static member function">;
def err_invalid_qualified_function_type : Error<
  "%select{static |non-}0member function %select{of type %2 |}1"
  "cannot have '%3' qualifier">;
def err_compound_qualified_function_type : Error<
  "%select{block pointer|pointer|reference}0 to function type %select{%2 |}1"
  "cannot have '%3' qualifier">;

def err_ref_qualifier_overload : Error<
  "cannot overload a member function %select{without a ref-qualifier|with "
  "ref-qualifier '&'|with ref-qualifier '&&'}0 with a member function %select{"
  "without a ref-qualifier|with ref-qualifier '&'|with ref-qualifier '&&'}1">;

def err_invalid_non_static_member_use : Error<
  "invalid use of non-static data member %0">;
def err_nested_non_static_member_use : Error<
  "%select{call to non-static member function|use of non-static data member}0 "
  "%2 of %1 from nested type %3">;
def warn_cxx98_compat_non_static_member_use : Warning<
  "use of non-static data member %0 in an unevaluated context is "
  "incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
def err_invalid_incomplete_type_use : Error<
  "invalid use of incomplete type %0">;
def err_builtin_func_cast_more_than_one_arg : Error<
  "function-style cast to a builtin type can only take one argument">;
def err_value_init_for_array_type : Error<
  "array types cannot be value-initialized">;
def warn_format_nonliteral_noargs : Warning<
  "format string is not a string literal (potentially insecure)">,
  InGroup<FormatSecurity>;
def warn_format_nonliteral : Warning<
  "format string is not a string literal">,
  InGroup<FormatNonLiteral>, DefaultIgnore;

def err_unexpected_interface : Error<
  "unexpected interface name %0: expected expression">;
def err_ref_non_value : Error<"%0 does not refer to a value">;
def err_ref_vm_type : Error<
  "cannot refer to declaration with a variably modified type inside block">;
def err_ref_flexarray_type : Error<
  "cannot refer to declaration of structure variable with flexible array member "
  "inside block">;
def err_ref_array_type : Error<
  "cannot refer to declaration with an array type inside block">;
def err_property_not_found : Error<
  "property %0 not found on object of type %1">;
def err_invalid_property_name : Error<
  "%0 is not a valid property name (accessing an object of type %1)">;
def err_getter_not_found : Error<
  "no getter method for read from property">;
def err_objc_subscript_method_not_found : Error<
  "expected method to %select{read|write}1 %select{dictionary|array}2 element not "
  "found on object of type %0">;
def err_objc_subscript_index_type : Error<
  "method index parameter type %0 is not integral type">;
def err_objc_subscript_key_type : Error<
  "method key parameter type %0 is not object type">;
def err_objc_subscript_dic_object_type : Error<
  "method object parameter type %0 is not object type">;
def err_objc_subscript_object_type : Error<
  "cannot assign to this %select{dictionary|array}1 because assigning method's "
  "2nd parameter of type %0 is not an Objective-C pointer type">;
def err_objc_subscript_base_type : Error<
  "%select{dictionary|array}1 subscript base type %0 is not an Objective-C object">;
def err_objc_multiple_subscript_type_conversion : Error<
  "indexing expression is invalid because subscript type %0 has "
  "multiple type conversion functions">;
def err_objc_subscript_type_conversion : Error<
  "indexing expression is invalid because subscript type %0 is not an integral"
  " or Objective-C pointer type">;
def err_objc_subscript_pointer : Error<
  "indexing expression is invalid because subscript type %0 is not an"
  " Objective-C pointer">;
def err_objc_indexing_method_result_type : Error<
  "method for accessing %select{dictionary|array}1 element must have Objective-C"
  " object return type instead of %0">;
def err_objc_index_incomplete_class_type : Error<
  "Objective-C index expression has incomplete class type %0">;
def err_illegal_container_subscripting_op : Error<
  "illegal operation on Objective-C container subscripting">;
def err_property_not_found_forward_class : Error<
  "property %0 cannot be found in forward class object %1">;
def err_property_not_as_forward_class : Error<
  "property %0 refers to an incomplete Objective-C class %1 "
  "(with no @interface available)">;
def note_forward_class : Note<
  "forward declaration of class here">;
def err_duplicate_property : Error<
  "property has a previous declaration">;
def ext_gnu_void_ptr : Extension<
  "arithmetic on%select{ a|}0 pointer%select{|s}0 to void is a GNU extension">,
  InGroup<PointerArith>;
def ext_gnu_ptr_func_arith : Extension<
  "arithmetic on%select{ a|}0 pointer%select{|s}0 to%select{ the|}2 function "
  "type%select{|s}2 %1%select{| and %3}2 is a GNU extension">,
  InGroup<PointerArith>;
def error_readonly_message_assignment : Error<
  "assigning to 'readonly' return result of an Objective-C message not allowed">;
def ext_integer_increment_complex : Extension<
  "ISO C does not support '++'/'--' on complex integer type %0">;
def ext_integer_complement_complex : Extension<
  "ISO C does not support '~' for complex conjugation of %0">;
def err_nosetter_property_assignment : Error<
  "%select{assignment to readonly property|"
  "no setter method %1 for assignment to property}0">;
def err_nosetter_property_incdec : Error<
  "%select{%select{increment|decrement}1 of readonly property|"
  "no setter method %2 for %select{increment|decrement}1 of property}0">;
def err_nogetter_property_compound_assignment : Error<
  "a getter method is needed to perform a compound assignment on a property">;
def err_nogetter_property_incdec : Error<
  "no getter method %1 for %select{increment|decrement}0 of property">;
def error_no_subobject_property_setting : Error<
  "expression is not assignable">;
def err_qualified_objc_access : Error<
  "%select{property|instance variable}0 access cannot be qualified with '%1'">;
  
def ext_freestanding_complex : Extension<
  "complex numbers are an extension in a freestanding C99 implementation">;

// FIXME: Remove when we support imaginary.
def err_imaginary_not_supported : Error<"imaginary types are not supported">;

// Obj-c expressions
def warn_root_inst_method_not_found : Warning<
  "instance method %0 is being used on 'Class' which is not in the root class">,
  InGroup<MethodAccess>;
def warn_class_method_not_found : Warning<
  "class method %objcclass0 not found (return type defaults to 'id')">,
  InGroup<MethodAccess>;
def warn_instance_method_on_class_found : Warning<
  "instance method %0 found instead of class method %1">,
  InGroup<MethodAccess>;
def warn_inst_method_not_found : Warning<
  "instance method %objcinstance0 not found (return type defaults to 'id')">,
  InGroup<MethodAccess>;
def error_no_super_class_message : Error<
  "no @interface declaration found in class messaging of %0">;
def error_root_class_cannot_use_super : Error<
  "%0 cannot use 'super' because it is a root class">;
def err_invalid_receiver_to_message_super : Error<
  "'super' is only valid in a method body">;
def err_invalid_receiver_class_message : Error<
  "receiver type %0 is not an Objective-C class">;
def err_missing_open_square_message_send : Error<
  "missing '[' at start of message send expression">;
def warn_bad_receiver_type : Warning<
  "receiver type %0 is not 'id' or interface pointer, consider "
  "casting it to 'id'">,InGroup<ObjCReceiver>;
def err_bad_receiver_type : Error<"bad receiver type %0">;
def err_unknown_receiver_suggest : Error<
  "unknown receiver %0; did you mean %1?">;
def error_objc_throw_expects_object : Error<
  "@throw requires an Objective-C object type (%0 invalid)">;
def error_objc_synchronized_expects_object : Error<
  "@synchronized requires an Objective-C object type (%0 invalid)">;
def error_rethrow_used_outside_catch : Error<
  "@throw (rethrow) used outside of a @catch block">;
def err_attribute_multiple_objc_gc : Error<
  "multiple garbage collection attributes specified for type">;
def err_catch_param_not_objc_type : Error<
  "@catch parameter is not a pointer to an interface type">;
def err_illegal_qualifiers_on_catch_parm : Error<
  "illegal qualifiers on @catch parameter">;
def err_storage_spec_on_catch_parm : Error<
  "@catch parameter cannot have storage specifier '%0'">;
def warn_register_objc_catch_parm : Warning<
  "'register' storage specifier on @catch parameter will be ignored">;
def err_qualified_objc_catch_parm : Error<
  "@catch parameter declarator cannot be qualified">;
def warn_objc_pointer_cxx_catch_fragile : Warning<
  "can not catch an exception thrown with @throw in C++ in the non-unified "
  "exception model">, InGroup<ObjCNonUnifiedException>;
def err_objc_object_catch : Error<
  "can't catch an Objective-C object by value">;
def err_incomplete_type_objc_at_encode : Error<
  "'@encode' of incomplete type %0">;

def warn_setter_getter_impl_required : Warning<
  "property %0 requires method %1 to be defined - "
  "use @synthesize, @dynamic or provide a method implementation "
  "in this class implementation">,
  InGroup<ObjCPropertyImpl>;
def warn_setter_getter_impl_required_in_category : Warning<
  "property %0 requires method %1 to be defined - "
  "use @dynamic or provide a method implementation in this category">,
  InGroup<ObjCPropertyImpl>;
def note_parameter_named_here : Note<
  "passing argument to parameter %0 here">;
def note_parameter_here : Note<
  "passing argument to parameter here">;

// C++ casts
// These messages adhere to the TryCast pattern: %0 is an int specifying the
// cast type, %1 is the source type, %2 is the destination type.
def err_bad_reinterpret_cast_overload : Error<
  "reinterpret_cast cannot resolve overloaded function %0 to type %1">;

def warn_reinterpret_different_from_static : Warning<
  "'reinterpret_cast' %select{from|to}3 class %0 %select{to|from}3 its "
  "%select{virtual base|base at non-zero offset}2 %1 behaves differently from "
  "'static_cast'">, InGroup<ReinterpretBaseClass>;
def note_reinterpret_updowncast_use_static: Note<
  "use 'static_cast' to adjust the pointer correctly while "
  "%select{upcasting|downcasting}0">;

def err_bad_static_cast_overload : Error<
  "address of overloaded function %0 cannot be static_cast to type %1">;

def err_bad_cstyle_cast_overload : Error<
  "address of overloaded function %0 cannot be cast to type %1">;


def err_bad_cxx_cast_generic : Error<
  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
  "functional-style cast}0 from %1 to %2 is not allowed">;
def err_bad_cxx_cast_rvalue : Error<
  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
  "functional-style cast}0 from rvalue to reference type %2">;
def err_bad_cxx_cast_qualifiers_away : Error<
  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
  "functional-style cast}0 from %1 to %2 casts away qualifiers">;
def err_bad_const_cast_dest : Error<
  "%select{const_cast||||C-style cast|functional-style cast}0 to %2, "
  "which is not a reference, pointer-to-object, or pointer-to-data-member">;
def ext_cast_fn_obj : Extension<
  "cast between pointer-to-function and pointer-to-object is an extension">;
def warn_cxx98_compat_cast_fn_obj : Warning<
  "cast between pointer-to-function and pointer-to-object is incompatible with C++98">,
  InGroup<CXX98CompatPedantic>, DefaultIgnore;
def err_bad_reinterpret_cast_small_int : Error<
  "cast from pointer to smaller type %2 loses information">;
def err_bad_cxx_cast_vector_to_scalar_different_size : Error<
  "%select{||reinterpret_cast||C-style cast|}0 from vector %1 " 
  "to scalar %2 of different size">;
def err_bad_cxx_cast_scalar_to_vector_different_size : Error<
  "%select{||reinterpret_cast||C-style cast|}0 from scalar %1 " 
  "to vector %2 of different size">;
def err_bad_cxx_cast_vector_to_vector_different_size : Error<
  "%select{||reinterpret_cast||C-style cast|}0 from vector %1 " 
  "to vector %2 of different size">;
def err_bad_lvalue_to_rvalue_cast : Error<
  "cannot cast from lvalue of type %1 to rvalue reference type %2; types are "
  "not compatible">;
def err_bad_static_cast_pointer_nonpointer : Error<
  "cannot cast from type %1 to pointer type %2">;
def err_bad_static_cast_member_pointer_nonmp : Error<
  "cannot cast from type %1 to member pointer type %2">;
def err_bad_cxx_cast_member_pointer_size : Error<
  "cannot %select{||reinterpret_cast||C-style cast|}0 from member pointer "
  "type %1 to member pointer type %2 of different size">;
def err_bad_reinterpret_cast_reference : Error<
  "reinterpret_cast of a %0 to %1 needs its address which is not allowed">;
def warn_undefined_reinterpret_cast : Warning<
  "reinterpret_cast from %0 to %1 has undefined behavior">,
  InGroup<UndefinedReinterpretCast>, DefaultIgnore;

// These messages don't adhere to the pattern.
// FIXME: Display the path somehow better.
def err_ambiguous_base_to_derived_cast : Error<
  "ambiguous cast from base %0 to derived %1:%2">;
def err_static_downcast_via_virtual : Error<
  "cannot cast %0 to %1 via virtual base %2">;
def err_downcast_from_inaccessible_base : Error<
  "cannot cast %select{private|protected}2 base class %1 to %0">;
def err_upcast_to_inaccessible_base : Error<
  "cannot cast %0 to its %select{private|protected}2 base class %1">;
def err_bad_dynamic_cast_not_ref_or_ptr : Error<
  "%0 is not a reference or pointer">;
def err_bad_dynamic_cast_not_class : Error<"%0 is not a class">;
def err_bad_dynamic_cast_incomplete : Error<"%0 is an incomplete type">;
def err_bad_dynamic_cast_not_ptr : Error<"%0 is not a pointer">;
def err_bad_dynamic_cast_not_polymorphic : Error<"%0 is not polymorphic">;

// Other C++ expressions
def err_need_header_before_typeid : Error<
  "you need to include <typeinfo> before using the 'typeid' operator">;
def err_need_header_before_ms_uuidof : Error<
  "you need to include <guiddef.h> before using the '__uuidof' operator">;
def err_uuidof_without_guid : Error<
  "cannot call operator __uuidof on a type with no GUID">;
def err_incomplete_typeid : Error<"'typeid' of incomplete type %0">;
def err_static_illegal_in_new : Error<
  "the 'static' modifier for the array size is not legal in new expressions">;
def err_array_new_needs_size : Error<
  "array size must be specified in new expressions">;
def err_bad_new_type : Error<
  "cannot allocate %select{function|reference}1 type %0 with new">;
def err_new_incomplete_type : Error<
  "allocation of incomplete type %0">;
def err_new_array_nonconst : Error<
  "only the first dimension of an allocated array may have dynamic size">;
def err_new_array_init_args : Error<
  "array 'new' cannot have initialization arguments">;
def ext_new_paren_array_nonconst : ExtWarn<
  "when type is in parentheses, array cannot have dynamic size">;
def err_placement_new_non_placement_delete : Error<
  "'new' expression with placement arguments refers to non-placement "
  "'operator delete'">;
def err_array_size_not_integral : Error<
  "array size expression must have integral or %select{|unscoped }0"
  "enumeration type, not %1">;
def err_array_size_incomplete_type : Error<
  "array size expression has incomplete class type %0">;
def err_array_size_explicit_conversion : Error<
  "array size expression of type %0 requires explicit conversion to type %1">;
def note_array_size_conversion : Note<
  "conversion to %select{integral|enumeration}0 type %1 declared here">;
def err_array_size_ambiguous_conversion : Error<
  "ambiguous conversion of array size expression of type %0 to an integral or "
  "enumeration type">;
def ext_array_size_conversion : Extension<
  "implicit conversion from array size expression of type %0 to "
  "%select{integral|enumeration}1 type %2 is a C++11 extension">,
  InGroup<CXX11>;
def warn_cxx98_compat_array_size_conversion : Warning<
  "implicit conversion from array size expression of type %0 to "
  "%select{integral|enumeration}1 type %2 is incompatible with C++98">,
  InGroup<CXX98CompatPedantic>, DefaultIgnore;
def err_address_space_qualified_new : Error<
  "'new' cannot allocate objects of type %0 in address space '%1'">;
def err_address_space_qualified_delete : Error<
  "'delete' cannot delete objects of type %0 in address space '%1'">;

def err_default_init_const : Error<
  "default initialization of an object of const type %0"
  "%select{| requires a user-provided default constructor}1">;
def err_delete_operand : Error<"cannot delete expression of type %0">;
def ext_delete_void_ptr_operand : ExtWarn<
  "cannot delete expression with pointer-to-'void' type %0">;
def err_ambiguous_delete_operand : Error<"ambiguous conversion of delete "
                                         "expression of type %0 to a pointer">;
def warn_delete_incomplete : Warning<
  "deleting pointer to incomplete type %0 may cause undefined behavior">,
  InGroup<DiagGroup<"delete-incomplete">>;
def err_delete_incomplete_class_type : Error<
  "deleting incomplete class type %0; no conversions to pointer type">;
def warn_delete_array_type : Warning<
  "'delete' applied to a pointer-to-array type %0 treated as delete[]">;
def err_no_suitable_delete_member_function_found : Error<
  "no suitable member %0 in %1">;
def err_ambiguous_suitable_delete_member_function_found : Error<
  "multiple suitable %0 functions in %1">;
def note_member_declared_here : Note<
  "member %0 declared here">;
def err_decrement_bool : Error<"cannot decrement expression of type bool">;
def warn_increment_bool : Warning<
  "incrementing expression of type bool is deprecated">, InGroup<Deprecated>;
def err_catch_incomplete_ptr : Error<
  "cannot catch pointer to incomplete type %0">;
def err_catch_incomplete_ref : Error<
  "cannot catch reference to incomplete type %0">;
def err_catch_incomplete : Error<"cannot catch incomplete type %0">;
def err_catch_rvalue_ref : Error<"cannot catch exceptions by rvalue reference">;
def err_qualified_catch_declarator : Error<
  "exception declarator cannot be qualified">;
def err_early_catch_all : Error<"catch-all handler must come last">;
def err_bad_memptr_rhs : Error<
  "right hand operand to %0 has non pointer-to-member type %1">;
def err_bad_memptr_lhs : Error<
  "left hand operand to %0 must be a %select{|pointer to }1class "
  "compatible with the right hand operand, but is %2">;
def warn_exception_caught_by_earlier_handler : Warning<
  "exception of type %0 will be caught by earlier handler">;
def note_previous_exception_handler : Note<"for type %0">;
def err_exceptions_disabled : Error<
  "cannot use '%0' with exceptions disabled">;
def err_objc_exceptions_disabled : Error<
  "cannot use '%0' with Objective-C exceptions disabled">;
def warn_non_virtual_dtor : Warning<
  "%0 has virtual functions but non-virtual destructor">,
  InGroup<NonVirtualDtor>, DefaultIgnore;
def warn_delete_non_virtual_dtor : Warning<
  "delete called on %0 that has virtual functions but non-virtual destructor">,
  InGroup<DeleteNonVirtualDtor>, DefaultIgnore;
def warn_delete_abstract_non_virtual_dtor : Warning<
  "delete called on %0 that is abstract but has non-virtual destructor">,
  InGroup<DeleteNonVirtualDtor>;
def warn_overloaded_virtual : Warning<
  "%q0 hides overloaded virtual %select{function|functions}1">,
  InGroup<OverloadedVirtual>, DefaultIgnore;
def note_hidden_overloaded_virtual_declared_here : Note<
  "hidden overloaded virtual function %q0 declared here"
  "%select{|: different classes%diff{ ($ vs $)|}2,3"
  "|: different number of parameters (%2 vs %3)"
  "|: type mismatch at %ordinal2 parameter%diff{ ($ vs $)|}3,4"
  "|: different return type%diff{ ($ vs $)|}2,3"
  "|: different qualifiers ("
  "%select{none|const|restrict|const and restrict|volatile|const and volatile|"
  "volatile and restrict|const, volatile, and restrict}2 vs "
  "%select{none|const|restrict|const and restrict|volatile|const and volatile|"
  "volatile and restrict|const, volatile, and restrict}3)}1">;
def warn_using_directive_in_header : Warning<
  "using namespace directive in global context in header">,
  InGroup<HeaderHygiene>, DefaultIgnore;
def warn_overaligned_type : Warning<
  "type %0 requires %1 bytes of alignment and the default allocator only "
  "guarantees %2 bytes">,
  InGroup<OveralignedType>, DefaultIgnore;

def err_conditional_void_nonvoid : Error<
  "%select{left|right}1 operand to ? is void, but %select{right|left}1 operand "
  "is of type %0">;
def err_conditional_ambiguous : Error<
  "conditional expression is ambiguous; "
  "%diff{$ can be converted to $ and vice versa|"
  "types can be convert to each other}0,1">;
def err_conditional_ambiguous_ovl : Error<
  "conditional expression is ambiguous; %diff{$ and $|types}0,1 "
  "can be converted to several common types">;

def err_throw_incomplete : Error<
  "cannot throw object of incomplete type %0">;
def err_throw_incomplete_ptr : Error<
  "cannot throw pointer to object of incomplete type %0">;
def err_return_in_constructor_handler : Error<
  "return in the catch of a function try block of a constructor is illegal">;

let CategoryName = "Lambda Issue" in {
  def err_capture_more_than_once : Error<
    "%0 can appear only once in a capture list">;
  def err_reference_capture_with_reference_default : Error<
    "'&' cannot precede a capture when the capture default is '&'">;
  def err_this_capture_with_copy_default : Error<
    "'this' cannot be explicitly captured when the capture default is '='">;
  def err_copy_capture_with_copy_default : Error<
    "'&' must precede a capture when the capture default is '='">;
  def err_capture_does_not_name_variable : Error<
    "%0 in capture list does not name a variable">;
  def err_capture_non_automatic_variable : Error<
    "%0 cannot be captured because it does not have automatic storage "
    "duration">;
  def err_this_capture : Error<
    "'this' cannot be %select{implicitly |}0captured in this context">;
  def err_lambda_capture_block : Error<
    "__block variable %0 cannot be captured in a lambda expression">;
  def err_lambda_capture_anonymous_var : Error<
    "unnamed variable cannot be implicitly captured in a lambda expression">;
  def err_lambda_capture_vm_type : Error<
    "variable %0 with variably modified type cannot be captured in "
    "a lambda expression">;
  def err_lambda_capture_flexarray_type : Error<
    "variable %0 with flexible array member cannot be captured in "
    "a lambda expression">;
  def err_lambda_impcap : Error<
    "variable %0 cannot be implicitly captured in a lambda with no "
    "capture-default specified">;
  def note_lambda_decl : Note<"lambda expression begins here">;
  def err_lambda_unevaluated_operand : Error<
    "lambda expression in an unevaluated operand">;
  def err_lambda_return_init_list : Error<
    "cannot deduce lambda return type from initializer list">;
  def err_lambda_capture_default_arg : Error<
    "lambda expression in default argument cannot capture any entity">;
  def err_lambda_incomplete_result : Error<
    "incomplete result type %0 in lambda expression">;
  def err_lambda_objc_object_result : Error<
    "non-pointer Objective-C class type %0 in lambda expression result">;
  def ext_lambda_default_arguments : ExtWarn<
    "C++11 forbids default arguments for lambda expressions">,
    InGroup<LambdaExtensions>;
  def err_noreturn_lambda_has_return_expr : Error<
    "lambda declared 'noreturn' should not return">;
  def warn_maybe_falloff_nonvoid_lambda : Warning<
    "control may reach end of non-void lambda">,
    InGroup<ReturnType>;
  def warn_falloff_nonvoid_lambda : Warning<
    "control reaches end of non-void lambda">,
    InGroup<ReturnType>;
  def err_access_lambda_capture : Error<
    // The ERRORs represent other special members that aren't constructors, in
    // hopes that someone will bother noticing and reporting if they appear
    "capture of variable '%0' as type %1 calls %select{private|protected}3 "
    "%select{default |copy |move |*ERROR* |*ERROR* |*ERROR* |}2constructor">,
    AccessControl;
  def note_lambda_to_block_conv : Note<
    "implicit capture of lambda object due to conversion to block pointer "
    "here">;
}

def err_return_in_captured_stmt : Error<
  "cannot return from %0">;

def err_operator_arrow_circular : Error<
  "circular pointer delegation detected">;
def err_pseudo_dtor_base_not_scalar : Error<
  "object expression of non-scalar type %0 cannot be used in a "
  "pseudo-destructor expression">;
def ext_pseudo_dtor_on_void : ExtWarn<
  "pseudo-destructors on type void are a Microsoft extension">,
  InGroup<Microsoft>;
def err_pseudo_dtor_type_mismatch : Error<
  "the type of object expression "
  "%diff{($) does not match the type being destroyed ($)|"
  "does not match the type being destroyed}0,1 "
  "in pseudo-destructor expression">;
def err_pseudo_dtor_call_with_args : Error<
  "call to pseudo-destructor cannot have any arguments">;
def err_dtor_expr_without_call : Error<
  "%select{destructor reference|pseudo-destructor expression}0 must be "
  "called immediately with '()'">;
def err_pseudo_dtor_destructor_non_type : Error<
  "%0 does not refer to a type name in pseudo-destructor expression; expected "
  "the name of type %1">;
def err_invalid_use_of_function_type : Error<
  "a function type is not allowed here">;
def err_invalid_use_of_array_type : Error<"an array type is not allowed here">;
def err_type_defined_in_condition : Error<
  "types may not be defined in conditions">;
def err_typecheck_bool_condition : Error<
  "value of type %0 is not contextually convertible to 'bool'">;
def err_typecheck_ambiguous_condition : Error<
  "conversion %diff{from $ to $|between types}0,1 is ambiguous">;
def err_typecheck_nonviable_condition : Error<
  "no viable conversion%diff{ from $ to $|}0,1">;
def err_typecheck_deleted_function : Error<
  "conversion function %diff{from $ to $|between types}0,1 "
  "invokes a deleted function">;
  
def err_expected_class_or_namespace : Error<"expected a class or namespace">;
def err_expected_class : Error<"%0 is not a class%select{ or namespace|, "
  "namespace, or scoped enumeration}1">;
def err_invalid_declarator_scope : Error<"cannot define or redeclare %0 here "
  "because namespace %1 does not enclose namespace %2">;
def err_invalid_declarator_global_scope : Error<
  "definition or redeclaration of %0 cannot name the global scope">;
def err_invalid_declarator_in_function : Error<
  "definition or redeclaration of %0 not allowed inside a function">;
def err_not_tag_in_scope : Error<
  "no %select{struct|interface|union|class|enum}0 named %1 in %2">;

def err_no_typeid_with_fno_rtti : Error<
  "cannot use typeid with -fno-rtti">;

def err_cannot_form_pointer_to_member_of_reference_type : Error<
  "cannot form a pointer-to-member to member %0 of reference type %1">;
def err_incomplete_object_call : Error<
  "incomplete type in call to object of type %0">;

def warn_condition_is_assignment : Warning<"using the result of an "
  "assignment as a condition without parentheses">,
  InGroup<Parentheses>;
// Completely identical except off by default.
def warn_condition_is_idiomatic_assignment : Warning<"using the result "
  "of an assignment as a condition without parentheses">,
  InGroup<DiagGroup<"idiomatic-parentheses">>, DefaultIgnore;
def note_condition_assign_to_comparison : Note<
  "use '==' to turn this assignment into an equality comparison">;
def note_condition_or_assign_to_comparison : Note<
  "use '!=' to turn this compound assignment into an inequality comparison">;
def note_condition_assign_silence : Note<
  "place parentheses around the assignment to silence this warning">;

def warn_equality_with_extra_parens : Warning<"equality comparison with "
  "extraneous parentheses">, InGroup<ParenthesesOnEquality>;
def note_equality_comparison_to_assign : Note<
  "use '=' to turn this equality comparison into an assignment">;
def note_equality_comparison_silence : Note<
  "remove extraneous parentheses around the comparison to silence this warning">;

// assignment related diagnostics (also for argument passing, returning, etc).
// In most of these diagnostics the %2 is a value from the
// Sema::AssignmentAction enumeration
def err_typecheck_convert_incompatible : Error<
  "%select{%diff{assigning to $ from incompatible type $|"
  "assigning to type from incompatible type}0,1"
  "|%diff{passing $ to parameter of incompatible type $|"
  "passing type to parameter of incompatible type}0,1"
  "|%diff{returning $ from a function with incompatible result type $|"
  "returning type from a function with incompatible result type}0,1"
  "|%diff{converting $ to incompatible type $|"
  "converting type to incompatible type}0,1"
  "|%diff{initializing $ with an expression of incompatible type $|"
  "initializing type with an expression of incompatible type}0,1"
  "|%diff{sending $ to parameter of incompatible type $|"
  "sending type to parameter of incompatible type}0,1"
  "|%diff{casting $ to incompatible type $|"
  "casting type to incompatible type}0,1}2"
  "%select{|; dereference with *|"
  "; take the address with &|"
  "; remove *|"
  "; remove &}3"
  "%select{|: different classes%diff{ ($ vs $)|}5,6"
  "|: different number of parameters (%5 vs %6)"
  "|: type mismatch at %ordinal5 parameter%diff{ ($ vs $)|}6,7"
  "|: different return type%diff{ ($ vs $)|}5,6"
  "|: different qualifiers ("
  "%select{none|const|restrict|const and restrict|volatile|const and volatile|"
  "volatile and restrict|const, volatile, and restrict}5 vs "
  "%select{none|const|restrict|const and restrict|volatile|const and volatile|"
  "volatile and restrict|const, volatile, and restrict}6)}4">;
def err_typecheck_missing_return_type_incompatible : Error<
  "%diff{return type $ must match previous return type $|"
  "return type must match previous return type}0,1 when %select{block "
  "literal|lambda expression}2 has unspecified explicit return type">;

def warn_incompatible_qualified_id : Warning<
  "%select{%diff{assigning to $ from incompatible type $|"
  "assigning to type from incompatible type}0,1"
  "|%diff{passing $ to parameter of incompatible type $|"
  "passing type to parameter of incompatible type}0,1"
  "|%diff{returning $ from a function with incompatible result type $|"
  "returning type from a function with incompatible result type}0,1"
  "|%diff{converting $ to incompatible type $|"
  "converting type to incompatible type}0,1"
  "|%diff{initializing $ with an expression of incompatible type $|"
  "initializing type with an expression of incompatible type}0,1"
  "|%diff{sending $ to parameter of incompatible type $|"
  "sending type to parameter of incompatible type}0,1"
  "|%diff{casting $ to incompatible type $|"
  "casting type to incompatible type}0,1}2">;
def ext_typecheck_convert_pointer_int : ExtWarn<
  "incompatible pointer to integer conversion "
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  "%select{|; dereference with *|"
  "; take the address with &|"
  "; remove *|"
  "; remove &}3">,
  InGroup<IntConversion>;
def ext_typecheck_convert_int_pointer : ExtWarn<
  "incompatible integer to pointer conversion "
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  "%select{|; dereference with *|"
  "; take the address with &|"
  "; remove *|"
  "; remove &}3">,
  InGroup<IntConversion>;
def ext_typecheck_convert_pointer_void_func : Extension<
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  " converts between void pointer and function pointer">;
def ext_typecheck_convert_incompatible_pointer_sign : ExtWarn<
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  " converts between pointers to integer types with different sign">,
  InGroup<DiagGroup<"pointer-sign">>;
def ext_typecheck_convert_incompatible_pointer : ExtWarn<
  "incompatible pointer types "
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  "%select{|; dereference with *|"
  "; take the address with &|"
  "; remove *|"
  "; remove &}3">,
  InGroup<IncompatiblePointerTypes>;
def ext_typecheck_convert_discards_qualifiers : ExtWarn<
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  " discards qualifiers">,
  InGroup<IncompatiblePointerTypesDiscardsQualifiers>;
def ext_nested_pointer_qualifier_mismatch : ExtWarn<
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  " discards qualifiers in nested pointer types">,
  InGroup<IncompatiblePointerTypesDiscardsQualifiers>;
def warn_incompatible_vectors : Warning<
  "incompatible vector types "
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2">,
  InGroup<VectorConversion>, DefaultIgnore;
def err_int_to_block_pointer : Error<
  "invalid block pointer conversion "
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2">;
def err_typecheck_convert_incompatible_block_pointer : Error<
  "incompatible block pointer types "
  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2">;
def err_typecheck_incompatible_address_space : Error<
  "%select{%diff{assigning $ to $|assigning to different types}1,0"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  " changes address space of pointer">;
def err_typecheck_incompatible_ownership : Error<
  "%select{%diff{assigning $ to $|assigning to different types}1,0"
  "|%diff{passing $ to parameter of type $|"
  "passing to parameter of different type}0,1"
  "|%diff{returning $ from a function with result type $|"
  "returning from function with different return type}0,1"
  "|%diff{converting $ to type $|converting between types}0,1"
  "|%diff{initializing $ with an expression of type $|"
  "initializing with expression of different type}0,1"
  "|%diff{sending $ to parameter of type $|"
  "sending to parameter of different type}0,1"
  "|%diff{casting $ to type $|casting between types}0,1}2"
  " changes retain/release properties of pointer">;
def err_typecheck_comparison_of_distinct_blocks : Error<
  "comparison of distinct block types%diff{ ($ and $)|}0,1">;

def err_typecheck_array_not_modifiable_lvalue : Error<
  "array type %0 is not assignable">;
def err_typecheck_non_object_not_modifiable_lvalue : Error<
  "non-object type %0 is not assignable">;
def err_typecheck_expression_not_modifiable_lvalue : Error<
  "expression is not assignable">;
def err_typecheck_incomplete_type_not_modifiable_lvalue : Error<
  "incomplete type %0 is not assignable">;
def err_typecheck_lvalue_casts_not_supported : Error<
  "assignment to cast is illegal, lvalue casts are not supported">;

def err_typecheck_duplicate_vector_components_not_mlvalue : Error<
  "vector is not assignable (contains duplicate components)">;
def err_block_decl_ref_not_modifiable_lvalue : Error<
  "variable is not assignable (missing __block type specifier)">;
def err_lambda_decl_ref_not_modifiable_lvalue : Error<
  "cannot assign to a variable captured by copy in a non-mutable lambda">;
def err_typecheck_call_not_function : Error<
  "called object type %0 is not a function or function pointer">;
def err_call_incomplete_return : Error<
  "calling function with incomplete return type %0">;
def err_call_function_incomplete_return : Error<
  "calling %0 with incomplete return type %1">;
def note_function_with_incomplete_return_type_declared_here : Note<
  "%0 declared here">;
def err_call_incomplete_argument : Error<
  "argument type %0 is incomplete">;
def err_typecheck_call_too_few_args : Error<
  "too few %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "expected %1, have %2">;
def err_typecheck_call_too_few_args_one : Error<
  "too few %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "single argument %1 was not specified">;
def err_typecheck_call_too_few_args_at_least : Error<
  "too few %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "expected at least %1, have %2">;
def err_typecheck_call_too_few_args_at_least_one : Error<
  "too few %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "at least argument %1 must be specified">;
def err_typecheck_call_too_many_args : Error<
  "too many %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "expected %1, have %2">;
def err_typecheck_call_too_many_args_one : Error<
  "too many %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "expected single argument %1, have %2 arguments">;
def err_typecheck_call_too_many_args_at_most : Error<
  "too many %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "expected at most %1, have %2">;
def err_typecheck_call_too_many_args_at_most_one : Error<
  "too many %select{|||execution configuration }0arguments to "
  "%select{function|block|method|kernel function}0 call, "
  "expected at most single argument %1, have %2 arguments">;
def note_callee_decl : Note<
  "%0 declared here">;
def note_defined_here : Note<"%0 defined here">;

def err_builtin_fn_use : Error<"builtin functions must be directly called">;

def warn_call_wrong_number_of_arguments : Warning<
  "too %select{few|many}0 arguments in call to %1">;
def err_atomic_builtin_must_be_pointer : Error<
  "first argument to atomic builtin must be a pointer (%0 invalid)">;
def err_atomic_builtin_must_be_pointer_intptr : Error<
  "first argument to atomic builtin must be a pointer to integer or pointer"
  " (%0 invalid)">;
def err_atomic_builtin_pointer_size : Error<
  "first argument to atomic builtin must be a pointer to 1,2,4,8 or 16 byte "
  "type (%0 invalid)">;
def err_atomic_op_needs_atomic : Error<
  "first argument to atomic operation must be a pointer to _Atomic "
  "type (%0 invalid)">;
def err_atomic_op_needs_non_const_atomic : Error<
  "first argument to atomic operation must be a pointer to non-const _Atomic "
  "type (%0 invalid)">;
def err_atomic_op_needs_trivial_copy : Error<
  "first argument to atomic operation must be a pointer to a trivially-copyable"
  " type (%0 invalid)">;
def err_atomic_op_needs_atomic_int_or_ptr : Error<
  "first argument to atomic operation must be a pointer to %select{|atomic }0"
  "integer or pointer (%1 invalid)">;
def err_atomic_op_bitwise_needs_atomic_int : Error<
  "first argument to bitwise atomic operation must be a pointer to "
  "%select{|atomic }0integer (%1 invalid)">;

def err_deleted_function_use : Error<"attempt to use a deleted function">;

def err_kern_type_not_void_return : Error<
  "kernel function type %0 must have void return type">;
def err_config_scalar_return : Error<
  "CUDA special function 'cudaConfigureCall' must have scalar return type">;
def err_kern_call_not_global_function : Error<
  "kernel call to non-global function %0">;
def err_global_call_not_config : Error<
  "call to global function %0 not configured">;
def err_ref_bad_target : Error<
  "reference to %select{__device__|__global__|__host__|__host__ __device__}0 "
  "function %1 in %select{__device__|__global__|__host__|__host__ __device__}2 function">;

def warn_non_pod_vararg_with_format_string : Warning<
  "cannot pass %select{non-POD|non-trivial}0 object of type %1 to variadic "
  "%select{function|block|method|constructor}2; expected type from format "
  "string was %3">, InGroup<NonPODVarargs>, DefaultError;
// The arguments to this diagnostic should match the warning above.
def err_cannot_pass_objc_interface_to_vararg_format : Error<
  "cannot pass object with interface type %1 by value to variadic "
  "%select{function|block|method|constructor}2; expected type from format "
  "string was %3">;

def err_cannot_pass_objc_interface_to_vararg : Error<
  "cannot pass object with interface type %0 by value through variadic "
  "%select{function|block|method|constructor}1">;
def warn_cannot_pass_non_pod_arg_to_vararg : Warning<
  "cannot pass object of %select{non-POD|non-trivial}0 type %1 through variadic"
  " %select{function|block|method|constructor}2; call will abort at runtime">,
  InGroup<NonPODVarargs>, DefaultError;
def warn_cxx98_compat_pass_non_pod_arg_to_vararg : Warning<
  "passing object of trivial but non-POD type %0 through variadic"
  " %select{function|block|method|constructor}1 is incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;

def err_typecheck_call_invalid_ordered_compare : Error<
  "ordered compare requires two args of floating point type"
  "%diff{ ($ and $)|}0,1">;
def err_typecheck_call_invalid_unary_fp : Error<
  "floating point classification requires argument of floating point type "
  "(passed in %0)">;
def err_typecheck_cond_expect_scalar : Error<
  "used type %0 where arithmetic or pointer type is required">;
def ext_typecheck_cond_one_void : Extension<
  "C99 forbids conditional expressions with only one void side">;
def err_typecheck_cond_expect_scalar_or_vector : Error<
  "used type %0 where arithmetic, pointer, or vector type is required">;
def err_typecheck_cast_to_incomplete : Error<
  "cast to incomplete type %0">;
def ext_typecheck_cast_nonscalar : Extension<
  "C99 forbids casting nonscalar type %0 to the same type">;
def ext_typecheck_cast_to_union : Extension<
  "cast to union type is a GNU extension">,
  InGroup<GNU>;
def err_typecheck_cast_to_union_no_type : Error<
  "cast to union type from type %0 not present in union">;
def err_cast_pointer_from_non_pointer_int : Error<
  "operand of type %0 cannot be cast to a pointer type">;
def warn_cast_pointer_from_sel : Warning<
  "cast of type %0 to %1 is deprecated; use sel_getName instead">,
  InGroup<SelTypeCast>;
def warn_bad_function_cast : Warning<
  "cast from function call of type %0 to non-matching type %1">,
  InGroup<BadFunctionCast>, DefaultIgnore;
def err_cast_pointer_to_non_pointer_int : Error<
  "pointer cannot be cast to type %0">;
def err_typecheck_expect_scalar_operand : Error<
  "operand of type %0 where arithmetic or pointer type is required">;
def err_typecheck_cond_incompatible_operands : Error<
  "incompatible operand types%diff{ ($ and $)|}0,1">;
def ext_typecheck_cond_incompatible_operands_nonstandard : ExtWarn<
  "incompatible operand types%diff{ ($ and $)|}0,1 use non-standard composite "
  "pointer type %2">;
def err_cast_selector_expr : Error<
  "cannot type cast @selector expression">;
def warn_typecheck_cond_incompatible_pointers : ExtWarn<
  "pointer type mismatch%diff{ ($ and $)|}0,1">,
  InGroup<DiagGroup<"pointer-type-mismatch">>;
def warn_typecheck_cond_pointer_integer_mismatch : ExtWarn<
  "pointer/integer type mismatch in conditional expression"
  "%diff{ ($ and $)|}0,1">,
  InGroup<DiagGroup<"conditional-type-mismatch">>;
def err_typecheck_choose_expr_requires_constant : Error<
  "'__builtin_choose_expr' requires a constant expression">;
def warn_unused_expr : Warning<"expression result unused">,
  InGroup<UnusedValue>;
def warn_unused_voidptr : Warning<
  "expression result unused; should this cast be to 'void'?">,
  InGroup<UnusedValue>;
def warn_unused_property_expr : Warning<
 "property access result unused - getters should not be used for side effects">,
  InGroup<UnusedValue>;
def warn_unused_container_subscript_expr : Warning<
 "container access result unused - container access should not be used for side effects">,
  InGroup<UnusedValue>;
def warn_unused_call : Warning<
  "ignoring return value of function declared with %0 attribute">,
  InGroup<UnusedValue>;
def warn_unused_result : Warning<
  "ignoring return value of function declared with warn_unused_result "
  "attribute">, InGroup<DiagGroup<"unused-result">>;
def warn_unused_volatile : Warning<
  "expression result unused; assign into a variable to force a volatile load">,
  InGroup<DiagGroup<"unused-volatile-lvalue">>;

def warn_unused_comparison : Warning<
  "%select{equality|inequality}0 comparison result unused">,
  InGroup<UnusedComparison>;
def note_inequality_comparison_to_or_assign : Note<
  "use '|=' to turn this inequality comparison into an or-assignment">;

def err_incomplete_type_used_in_type_trait_expr : Error<
  "incomplete type %0 used in type trait expression">;
def err_type_trait_arity : Error<
  "type trait requires %0%select{| or more}1 argument%select{|s}2; have "
  "%3 argument%s3">;
  
def err_dimension_expr_not_constant_integer : Error<
  "dimension expression does not evaluate to a constant unsigned int">;
def err_expected_ident_or_lparen : Error<"expected identifier or '('">;

def err_typecheck_cond_incompatible_operands_null : Error<
  "non-pointer operand type %0 incompatible with %select{NULL|nullptr}1">;
} // End of general sema category.

// inline asm.
let CategoryName = "Inline Assembly Issue" in {
  def err_asm_wide_character : Error<"wide string is invalid in 'asm'">;
  def err_asm_invalid_lvalue_in_output : Error<"invalid lvalue in asm output">;
  def err_asm_invalid_output_constraint : Error<
    "invalid output constraint '%0' in asm">;
  def err_asm_invalid_lvalue_in_input : Error<
    "invalid lvalue in asm input for constraint '%0'">;
  def err_asm_invalid_input_constraint : Error<
    "invalid input constraint '%0' in asm">;
  def err_asm_invalid_type_in_input : Error<
    "invalid type %0 in asm input for constraint '%1'">;
  def err_asm_tying_incompatible_types : Error<
    "unsupported inline asm: input with type "
    "%diff{$ matching output with type $|}0,1">;
  def err_asm_unknown_register_name : Error<"unknown register name '%0' in asm">;
  def err_asm_empty : Error<"__asm used with no assembly instructions">;
  def err_asm_invalid_input_size : Error<
    "invalid input size for constraint '%0'">;
  def err_invalid_asm_cast_lvalue : Error<
    "invalid use of a cast in a inline asm context requiring an l-value: "
    "remove the cast or build with -fheinous-gnu-extensions">;
  def err_inline_ms_asm_parsing : Error<"%0">;
  def err_msasm_unsupported_arch : Error<
    "Unsupported architecture '%0' for MS-style inline assembly">;

  def warn_asm_label_on_auto_decl : Warning<
    "ignored asm label '%0' on automatic variable">;
  def warn_invalid_asm_cast_lvalue : Warning<
    "invalid use of a cast in an inline asm context requiring an l-value: "
    "accepted due to -fheinous-gnu-extensions, but clang may remove support "
    "for this in the future">;
  def warn_asm_mismatched_size_modifier : Warning<
    "the value is truncated when put into register, "
    "use a modifier to specify the size">,
    InGroup<ASMOperandWidths>;
}

let CategoryName = "Semantic Issue" in {

def err_invalid_conversion_between_vectors : Error<
  "invalid conversion between vector type%diff{ $ and $|}0,1 of different "
  "size">;
def err_invalid_conversion_between_vector_and_integer : Error<
  "invalid conversion between vector type %0 and integer type %1 "
  "of different size">;

def err_invalid_conversion_between_vector_and_scalar : Error<
  "invalid conversion between vector type %0 and scalar type %1">;

// C++ member initializers.
def err_only_constructors_take_base_inits : Error<
  "only constructors take base initializers">;

def err_multiple_mem_initialization : Error <
  "multiple initializations given for non-static member %0">;
def err_multiple_mem_union_initialization : Error <
  "initializing multiple members of union">;
def err_multiple_base_initialization : Error <
  "multiple initializations given for base %0">;

def err_mem_init_not_member_or_class : Error<
  "member initializer %0 does not name a non-static data member or base "
  "class">;

def warn_initializer_out_of_order : Warning<
  "%select{field|base class}0 %1 will be initialized after "
  "%select{field|base}2 %3">,
  InGroup<Reorder>, DefaultIgnore;

def err_base_init_does_not_name_class : Error<
  "constructor initializer %0 does not name a class">;
def err_base_init_direct_and_virtual : Error<
  "base class initializer %0 names both a direct base class and an "
  "inherited virtual base class">;
def err_not_direct_base_or_virtual : Error<
  "type %0 is not a direct or virtual base of %1">;

def err_in_class_initializer_non_const : Error<
  "non-const static data member must be initialized out of line">;
def err_in_class_initializer_volatile : Error<
  "static const volatile data member must be initialized out of line">;
def err_in_class_initializer_bad_type : Error<
  "static data member of type %0 must be initialized out of line">;
def ext_in_class_initializer_float_type : ExtWarn<
  "in-class initializer for static data member of type %0 is a GNU extension">,
  InGroup<GNUStaticFloatInit>;
def ext_in_class_initializer_float_type_cxx11 : ExtWarn<
  "in-class initializer for static data member of type %0 requires "
  "'constexpr' specifier">, InGroup<StaticFloatInit>, DefaultError;
def note_in_class_initializer_float_type_cxx11 : Note<"add 'constexpr'">;
def err_in_class_initializer_literal_type : Error<
  "in-class initializer for static data member of type %0 requires "
  "'constexpr' specifier">;
def err_in_class_initializer_non_constant : Error<
  "in-class initializer for static data member is not a constant expression">;
def err_in_class_initializer_references_def_ctor : Error<
  "defaulted default constructor of %0 cannot be used by non-static data "
  "member initializer which appears before end of class definition">;

def ext_in_class_initializer_non_constant : Extension<
  "in-class initializer for static data member is not a constant expression; "
  "folding it to a constant is a GNU extension">, InGroup<GNU>;

def err_thread_dynamic_init : Error<
  "initializer for thread-local variable must be a constant expression">;
def err_thread_nontrivial_dtor : Error<
  "type of thread-local variable has non-trivial destruction">;
def note_use_thread_local : Note<
  "use 'thread_local' to allow this">;

// C++ anonymous unions and GNU anonymous structs/unions
def ext_anonymous_union : Extension<
  "anonymous unions are a C11 extension">, InGroup<C11>;
def ext_gnu_anonymous_struct : Extension<
  "anonymous structs are a GNU extension">, InGroup<GNU>;
def ext_c11_anonymous_struct : Extension<
  "anonymous structs are a C11 extension">, InGroup<C11>;
def err_anonymous_union_not_static : Error<
  "anonymous unions at namespace or global scope must be declared 'static'">;
def err_anonymous_union_with_storage_spec : Error<
  "anonymous union at class scope must not have a storage specifier">;
def err_anonymous_struct_not_member : Error<
  "anonymous %select{structs|structs and classes}0 must be "
  "%select{struct or union|class}0 members">;
def err_anonymous_union_member_redecl : Error<
  "member of anonymous union redeclares %0">;
def err_anonymous_struct_member_redecl : Error<
  "member of anonymous struct redeclares %0">;
def err_anonymous_record_with_type : Error<
  "types cannot be declared in an anonymous %select{struct|union}0">;
def ext_anonymous_record_with_type : Extension<
  "types declared in an anonymous %select{struct|union}0 are a Microsoft "
  "extension">, InGroup<Microsoft>;
def ext_anonymous_record_with_anonymous_type : Extension<
  "anonymous types declared in an anonymous %select{struct|union}0 "
  "are an extension">, InGroup<DiagGroup<"nested-anon-types">>;
def err_anonymous_record_with_function : Error<
  "functions cannot be declared in an anonymous %select{struct|union}0">;
def err_anonymous_record_with_static : Error<
  "static members cannot be declared in an anonymous %select{struct|union}0">;
def err_anonymous_record_bad_member : Error<
  "anonymous %select{struct|union}0 can only contain non-static data members">;
def err_anonymous_record_nonpublic_member : Error<
  "anonymous %select{struct|union}0 cannot contain a "
  "%select{private|protected}1 data member">;
def ext_ms_anonymous_struct : ExtWarn<
  "anonymous structs are a Microsoft extension">, InGroup<Microsoft>;

// C++ local classes
def err_reference_to_local_var_in_enclosing_function : Error<
  "reference to local variable %0 declared in enclosing function %1">;
def err_reference_to_local_var_in_enclosing_block : Error<
  "reference to local variable %0 declared in enclosing block literal">;
def err_reference_to_local_var_in_enclosing_lambda : Error<
  "reference to local variable %0 declared in enclosing lambda expression">;
def err_reference_to_local_var_in_enclosing_context : Error<
  "reference to local variable %0 declared in enclosing context">;

def note_local_variable_declared_here : Note<
  "%0 declared here">;
def err_static_data_member_not_allowed_in_local_class : Error<
  "static data member %0 not allowed in local class %1">; 
  
// C++ derived classes
def err_base_clause_on_union : Error<"unions cannot have base classes">;
def err_base_must_be_class : Error<"base specifier must name a class">;
def err_union_as_base_class : Error<"unions cannot be base classes">;
def err_circular_inheritance : Error<
  "circular inheritance between %0 and %1">;
def err_incomplete_base_class : Error<"base class has incomplete type">;
def err_duplicate_base_class : Error<
  "base class %0 specified more than once as a direct base class">;
// FIXME: better way to display derivation?  Pass entire thing into diagclient?
def err_ambiguous_derived_to_base_conv : Error<
  "ambiguous conversion from derived class %0 to base class %1:%2">;
def err_ambiguous_memptr_conv : Error<
  "ambiguous conversion from pointer to member of %select{base|derived}0 "
  "class %1 to pointer to member of %select{derived|base}0 class %2:%3">;

def err_memptr_conv_via_virtual : Error<
  "conversion from pointer to member of class %0 to pointer to member "
  "of class %1 via virtual base %2 is not allowed">;

// C++ member name lookup
def err_ambiguous_member_multiple_subobjects : Error<
  "non-static member %0 found in multiple base-class subobjects of type %1:%2">;
def err_ambiguous_member_multiple_subobject_types : Error<
  "member %0 found in multiple base classes of different types">;
def note_ambiguous_member_found : Note<"member found by ambiguous name lookup">;
def err_ambiguous_reference : Error<"reference to %0 is ambiguous">;
def note_ambiguous_candidate : Note<"candidate found by name lookup is %q0">;
def err_ambiguous_tag_hiding : Error<"a type named %0 is hidden by a "
  "declaration in a different namespace">;
def note_hidden_tag : Note<"type declaration hidden">;
def note_hiding_object : Note<"declaration hides type">;

// C++ operator overloading
def err_operator_overload_needs_class_or_enum : Error<
  "overloaded %0 must have at least one parameter of class "
  "or enumeration type">;

def err_operator_overload_variadic : Error<"overloaded %0 cannot be variadic">;
def err_operator_overload_static : Error<
  "overloaded %0 cannot be a static member function">;
def err_operator_overload_default_arg : Error<
  "parameter of overloaded %0 cannot have a default argument">;
def err_operator_overload_must_be : Error<
  "overloaded %0 must be a %select{unary|binary|unary or binary}2 operator "
  "(has %1 parameter%s1)">;

def err_operator_overload_must_be_member : Error<
  "overloaded %0 must be a non-static member function">;
def err_operator_overload_post_incdec_must_be_int : Error<
  "parameter of overloaded post-%select{increment|decrement}1 operator must "
  "have type 'int' (not %0)">;

// C++ allocation and deallocation functions.
def err_operator_new_delete_declared_in_namespace : Error<
  "%0 cannot be declared inside a namespace">;
def err_operator_new_delete_declared_static : Error<
  "%0 cannot be declared static in global scope">;
def err_operator_new_delete_invalid_result_type : Error<
  "%0 must return type %1">;
def err_operator_new_delete_dependent_result_type : Error<
  "%0 cannot have a dependent return type; use %1 instead">;
def err_operator_new_delete_too_few_parameters : Error<
  "%0 must have at least one parameter">;
def err_operator_new_delete_template_too_few_parameters : Error<
  "%0 template must have at least two parameters">;

def err_operator_new_dependent_param_type : Error<
  "%0 cannot take a dependent type as first parameter; "
  "use size_t (%1) instead">;
def err_operator_new_param_type : Error<
  "%0 takes type size_t (%1) as first parameter">;
def err_operator_new_default_arg: Error<
  "parameter of %0 cannot have a default argument">;
def err_operator_delete_dependent_param_type : Error<
  "%0 cannot take a dependent type as first parameter; use %1 instead">;
def err_operator_delete_param_type : Error<
  "first parameter of %0 must have type %1">;

// C++ literal operators
def err_literal_operator_outside_namespace : Error<
  "literal operator %0 must be in a namespace or global scope">;
def err_literal_operator_default_argument : Error<
  "literal operator cannot have a default argument">;
// FIXME: This diagnostic sucks
def err_literal_operator_params : Error<
  "parameter declaration for literal operator %0 is not valid">;
def err_literal_operator_extern_c : Error<
  "literal operator must have C++ linkage">;
def warn_user_literal_reserved : Warning<
  "user-defined literal suffixes not starting with '_' are reserved; "
  "no literal will invoke this operator">,
  InGroup<UserDefinedLiterals>;

// C++ conversion functions
def err_conv_function_not_member : Error<
  "conversion function must be a non-static member function">;
def err_conv_function_return_type : Error<
  "conversion function cannot have a return type">;
def err_conv_function_with_params : Error<
  "conversion function cannot have any parameters">;
def err_conv_function_variadic : Error<
  "conversion function cannot be variadic">;
def err_conv_function_to_array : Error<
  "conversion function cannot convert to an array type">;
def err_conv_function_to_function : Error<
  "conversion function cannot convert to a function type">;
def err_conv_function_with_complex_decl : Error<
  "must use a typedef to declare a conversion to %0">;
def err_conv_function_redeclared : Error<
  "conversion function cannot be redeclared">;
def warn_conv_to_self_not_used : Warning<
  "conversion function converting %0 to itself will never be used">;
def warn_conv_to_base_not_used : Warning<
  "conversion function converting %0 to its base class %1 will never be used">;
def warn_conv_to_void_not_used : Warning<
  "conversion function converting %0 to %1 will never be used">;

def warn_not_compound_assign : Warning<
  "use of unary operator that may be intended as compound assignment (%0=)">;

// C++11 explicit conversion operators
def ext_explicit_conversion_functions : ExtWarn<
  "explicit conversion functions are a C++11 extension">, InGroup<CXX11>;
def warn_cxx98_compat_explicit_conversion_functions : Warning<
  "explicit conversion functions are incompatible with C++98">,
  InGroup<CXX98Compat>, DefaultIgnore;

// C++11 defaulted functions
def err_defaulted_special_member_params : Error<
  "an explicitly-defaulted %select{|copy |move }0constructor cannot "
  "have default arguments">;
def err_defaulted_special_member_variadic : Error<
  "an explicitly-defaulted %select{|copy |move }0constructor cannot "
  "be variadic">;
def err_defaulted_special_member_return_type : Error<
  "explicitly-defaulted %select{copy|move}0 assignment operator must "
  "return %1">;
def err_defaulted_special_member_quals : Error<
  "an explicitly-defaulted %select{copy|move}0 assignment operator may not "
  "have 'const', 'constexpr' or 'volatile' qualifiers">;
def err_defaulted_special_member_volatile_param : Error<
  "the parameter for an explicitly-defaulted %select{<<ERROR>>|"
  "copy constructor|move constructor|copy assignment operator|"
  "move assignment operator|<<ERROR>>}0 may not be volatile">;
def err_defaulted_special_member_move_const_param : Error<
  "the parameter for an explicitly-defaulted move "
  "%select{constructor|assignment operator}0 may not be const">;
def err_defaulted_special_member_copy_const_param : Error<
  "the parameter for this explicitly-defaulted copy "
  "%select{constructor|assignment operator}0 is const, but a member or base "
  "requires it to be non-const">;
def err_defaulted_copy_assign_not_ref : Error<
  "the parameter for an explicitly-defaulted copy assignment operator must be an "
  "lvalue reference type">;
def err_incorrect_defaulted_exception_spec : Error<
  "exception specification of explicitly defaulted %select{default constructor|"
  "copy constructor|move constructor|copy assignment operator|move assignment "
  "operator|destructor}0 does not match the "
  "calculated one">;
def err_incorrect_defaulted_constexpr : Error<
  "defaulted definition of %select{default constructor|copy constructor|"
  "move constructor}0 is not constexpr">;
def err_out_of_line_default_deletes : Error<
  "defaulting this %select{default constructor|copy constructor|move "
  "constructor|copy assignment operator|move assignment operator|destructor}0 "
  "would delete it after its first declaration">;
def ext_implicit_exception_spec_mismatch : ExtWarn<
  "function previously declared with an %select{explicit|implicit}0 exception "
  "specification redeclared with an %select{implicit|explicit}0 exception "
  "specification">, InGroup<DiagGroup<"implicit-exception-spec-mismatch">>;

def warn_ptr_arith_precedes_bounds : Warning<
  "the pointer decremented by %0 refers before the beginning of the array">,
  InGroup<ArrayBoundsPointerArithmetic>, DefaultIgnore;
def warn_ptr_arith_exceeds_bounds : Warning<
  "the pointer incremented by %0 refers past the end of the array (that "
  "contains %1 element%s2)">,
  InGroup<ArrayBoundsPointerArithmetic>, DefaultIgnore;
def warn_array_index_precedes_bounds : Warning<
  "array index %0 is before the beginning of the array">,
  InGroup<ArrayBounds>;
def warn_array_index_exceeds_bounds : Warning<
  "array index %0 is past the end of the array (which contains %1 "
  "element%s2)">, InGroup<ArrayBounds>;
def note_array_index_out_of_bounds : Note<
  "array %0 declared here">;

def warn_printf_insufficient_data_args : Warning<
  "more '%%' conversions than data arguments">, InGroup<Format>;
def warn_printf_data_arg_not_used : Warning<
  "data argument not used by format string">, InGroup<FormatExtraArgs>;
def warn_format_invalid_conversion : Warning<
  "invalid conversion specifier '%0'">, InGroup<FormatInvalidSpecifier>;
def warn_printf_incomplete_specifier : Warning<
  "incomplete format specifier">, InGroup<Format>;
def warn_missing_format_string : Warning<
  "format string missing">, InGroup<Format>;
def warn_scanf_nonzero_width : Warning<
  "zero field width in scanf format string is unused">,
  InGroup<Format>;
def warn_printf_conversion_argument_type_mismatch : Warning<
  "format specifies type %0 but the argument has type %1">,
  InGroup<Format>;
def warn_format_argument_needs_cast : Warning<
  "values of type '%0' should not be used as format arguments; add an explicit "
  "cast to %1 instead">,
  InGroup<Format>;
def warn_printf_positional_arg_exceeds_data_args : Warning <
  "data argument position '%0' exceeds the number of data arguments (%1)">,
  InGroup<Format>;
def warn_format_zero_positional_specifier : Warning<
  "position arguments in format strings start counting at 1 (not 0)">,
  InGroup<Format>;
def warn_format_invalid_positional_specifier : Warning<
  "invalid position specified for %select{field width|field precision}0">,
  InGroup<Format>;
def warn_format_mix_positional_nonpositional_args : Warning<
  "cannot mix positional and non-positional arguments in format string">,
  InGroup<Format>;
def warn_static_array_too_small : Warning<
  "array argument is too small; contains %0 elements, callee requires at least %1">,
  InGroup<ArrayBounds>;
def note_callee_static_array : Note<
  "callee declares array parameter as static here">;
def warn_empty_format_string : Warning<
  "format string is empty">, InGroup<FormatZeroLength>;
def warn_format_string_is_wide_literal : Warning<
  "format string should not be a wide string">, InGroup<Format>;
def warn_printf_format_string_contains_null_char : Warning<
  "format string contains '\\0' within the string body">, InGroup<Format>;
def warn_printf_asterisk_missing_arg : Warning<
  "'%select{*|.*}0' specified field %select{width|precision}0 is missing a matching 'int' argument">,
  InGroup<Format>;
def warn_printf_asterisk_wrong_type : Warning<
  "field %select{width|precision}0 should have type %1, but argument has type %2">,
  InGroup<Format>;
def warn_printf_nonsensical_optional_amount: Warning<
  "%select{field width|precision}0 used with '%1' conversion specifier, resulting in undefined behavior">,
  InGroup<Format>;
def warn_printf_nonsensical_flag: Warning<
  "flag '%0' results in undefined behavior with '%1' conversion specifier">,
  InGroup<Format>;
def warn_format_nonsensical_length: Warning<
  "length modifier '%0' results in undefined behavior or no effect with '%1' conversion specifier">,
  InGroup<Format>;
def warn_format_non_standard_positional_arg: ExtWarn<
  "positional arguments are not supported by ISO C">, InGroup<FormatNonStandard>, DefaultIgnore;
def warn_format_non_standard: ExtWarn<
  "'%0' %select{length modifier|conversion specifier}1 is not supported by ISO C">,
  InGroup<FormatNonStandard>, DefaultIgnore;
def warn_format_non_standard_conversion_spec: ExtWarn<
  "using length modifier '%0' with conversion specifier '%1' is not supported by ISO C">,
  InGroup<FormatNonStandard>, DefaultIgnore;
def warn_printf_ignored_flag: Warning<
  "flag '%0' is ignored when flag '%1' is present">,
  InGroup<Format>;
def warn_scanf_scanlist_incomplete : Warning<
  "no closing ']' for '%%[' in scanf format string">,
  InGroup<Format>;
def note_format_string_defined : Note<"format string is defined here">;
def note_format_fix_specifier : Note<"did you mean to use '%0'?">;
def note_printf_c_str: Note<"did you mean to call the %0 method?">;

def warn_null_arg : Warning<
  "null passed to a callee which requires a non-null argument">,
  InGroup<NonNull>;

// CHECK: returning address/reference of stack memory
def warn_ret_stack_addr : Warning<
  "address of stack memory associated with local variable %0 returned">,
  InGroup<ReturnStackAddress>;
def warn_ret_stack_ref : Warning<
  "reference to stack memory associated with local variable %0 returned">,
  InGroup<ReturnStackAddress>;
def warn_ret_local_temp_addr : Warning<
  "returning address of local temporary object">,
  InGroup<ReturnStackAddress>;
def warn_ret_local_temp_ref : Warning<
  "returning reference to local temporary object">,
  InGroup<ReturnStackAddress>;
def warn_ret_addr_label : Warning<
  "returning address of label, which is local">,
  InGroup<ReturnStackAddress>;
def err_ret_local_block : Error<
  "returning block that lives on the local stack">;
def note_ref_var_local_bind : Note<
  "binding reference variable %0 here">;

// Check for initializing a member variable with the address or a reference to
// a constructor parameter.
def warn_bind_ref_member_to_parameter : Warning<
  "binding reference member %0 to stack allocated parameter %1">,
  InGroup<DanglingField>;
def warn_init_ptr_member_to_parameter_addr : Warning<
  "initializing pointer member %0 with the stack address of parameter %1">,
  InGroup<DanglingField>;
def warn_bind_ref_member_to_temporary : Warning<
  "binding reference member %0 to a temporary value">,
  InGroup<DanglingField>;
def note_ref_or_ptr_member_declared_here : Note<
  "%select{reference|pointer}0 member declared here">;

// For non-floating point, expressions of the form x == x or x != x
// should result in a warning, since these always evaluate to a constant.
// Array comparisons have similar warnings
def warn_comparison_always : Warning<
  "%select{self-|array }0comparison always evaluates to %select{false|true|a constant}1">,
  InGroup<TautologicalCompare>;

def warn_stringcompare : Warning<
  "result of comparison against %select{a string literal|@encode}0 is "
  "unspecified (use strncmp instead)">,
  InGroup<DiagGroup<"string-compare">>;

def warn_identity_field_assign : Warning<
  "assigning %select{field|instance variable}0 to itself">,
  InGroup<SelfAssignmentField>;

// Type safety attributes
def err_type_tag_for_datatype_not_ice : Error<
  "'type_tag_for_datatype' attribute requires the initializer to be "
  "an %select{integer|integral}0 constant expression">;
def err_type_tag_for_datatype_too_large : Error<
  "'type_tag_for_datatype' attribute requires the initializer to be "
  "an %select{integer|integral}0 constant expression "
  "that can be represented by a 64 bit integer">;
def warn_type_tag_for_datatype_wrong_kind : Warning<
  "this type tag was not designed to be used with this function">,
  InGroup<TypeSafety>;
def warn_type_safety_type_mismatch : Warning<
  "argument type %0 doesn't match specified '%1' type tag "
  "%select{that requires %3|}2">, InGroup<TypeSafety>;
def warn_type_safety_null_pointer_required : Warning<
  "specified %0 type tag requires a null pointer">, InGroup<TypeSafety>;

// Generic selections.
def err_assoc_type_incomplete : Error<
  "type %0 in generic association incomplete">;
def err_assoc_type_nonobject : Error<
  "type %0 in generic association not an object type">;
def err_assoc_type_variably_modified : Error<
  "type %0 in generic association is a variably modified type">;
def err_assoc_compatible_types : Error<
  "type %0 in generic association compatible with previously specified type %1">;
def note_compat_assoc : Note<
  "compatible type %0 specified here">;
def err_generic_sel_no_match : Error<
  "controlling expression type %0 not compatible with any generic association type">;
def err_generic_sel_multi_match : Error<
  "controlling expression type %0 compatible with %1 generic association types">;


// Blocks
def err_blocks_disable : Error<"blocks support disabled - compile with -fblocks"
  " or pick a deployment target that supports them">;
def err_block_returning_array_function : Error<
  "block cannot return %select{array|function}0 type %1">;

// Builtin annotation
def err_builtin_annotation_first_arg : Error<
  "first argument to __builtin_annotation must be an integer">;
def err_builtin_annotation_second_arg : Error<
  "second argument to __builtin_annotation must be a non-wide string constant">;

// CFString checking
def err_cfstring_literal_not_string_constant : Error<
  "CFString literal is not a string constant">;
def warn_cfstring_truncated : Warning<
  "input conversion stopped due to an input byte that does not "
  "belong to the input codeset UTF-8">,
  InGroup<DiagGroup<"CFString-literal">>;

// Statements.
def err_continue_not_in_loop : Error<
  "'continue' statement not in loop statement">;
def err_break_not_in_loop_or_switch : Error<
  "'break' statement not in loop or switch statement">;
def err_default_not_in_switch : Error<
  "'default' statement not in switch statement">;
def err_case_not_in_switch : Error<"'case' statement not in switch statement">;
def warn_bool_switch_condition : Warning<
  "switch condition has boolean value">;
def warn_case_value_overflow : Warning<
  "overflow converting case value to switch condition type (%0 to %1)">,
  InGroup<Switch>;
def err_duplicate_case : Error<"duplicate case value '%0'">;
def err_duplicate_case_differing_expr : Error<
  "duplicate case value: '%0' and '%1' both equal '%2'">;
def warn_case_empty_range : Warning<"empty case range specified">;
def warn_missing_case_for_condition :
  Warning<"no case matching constant switch condition '%0'">;

def warn_def_missing_case1 : Warning<
  "enumeration value %0 not explicitly handled in switch">,
  InGroup<SwitchEnum>, DefaultIgnore;
def warn_def_missing_case2 : Warning<
  "enumeration values %0 and %1 not explicitly handled in switch">,
  InGroup<SwitchEnum>, DefaultIgnore;
def warn_def_missing_case3 : Warning<
  "enumeration values %0, %1, and %2 not explicitly handled in switch">,
  InGroup<SwitchEnum>, DefaultIgnore;
def warn_def_missing_cases : Warning<
  "%0 enumeration values not explicitly handled in switch: %1, %2, %3...">,
  InGroup<SwitchEnum>, DefaultIgnore;

def warn_missing_case1 : Warning<"enumeration value %0 not handled in switch">,
  InGroup<Switch>;
def warn_missing_case2 : Warning<
  "enumeration values %0 and %1 not handled in switch">,
  InGroup<Switch>;
def warn_missing_case3 : Warning<
  "enumeration values %0, %1, and %2 not handled in switch">,
  InGroup<Switch>;
def warn_missing_cases : Warning<
  "%0 enumeration values not handled in switch: %1, %2, %3...">,
  InGroup<Switch>;

def warn_unannotated_fallthrough : Warning<
  "unannotated fall-through between switch labels">,
  InGroup<ImplicitFallthrough>, DefaultIgnore;
def warn_unannotated_fallthrough_per_function : Warning<
  "unannotated fall-through between switch labels in partly-annotated "
  "function">, InGroup<ImplicitFallthroughPerFunction>, DefaultIgnore;
def note_insert_fallthrough_fixit : Note<
  "insert '%0;' to silence this warning">;
def note_insert_break_fixit : Note<
  "insert 'break;' to avoid fall-through">;
def err_fallthrough_attr_wrong_target : Error<
  "clang::fallthrough attribute is only allowed on empty statements">;
def note_fallthrough_insert_semi_fixit : Note<"did you forget ';'?">;
def err_fallthrough_attr_outside_switch : Error<
  "fallthrough annotation is outside switch statement">;
def warn_fallthrough_attr_invalid_placement : Warning<
  "fallthrough annotation does not directly precede switch label">,
  InGroup<ImplicitFallthrough>;
def warn_fallthrough_attr_unreachable : Warning<
  "fallthrough annotation in unreachable code">,
  InGroup<ImplicitFallthrough>;

def warn_unreachable_default : Warning<
  "default label in switch which covers all enumeration values">,
  InGroup<CoveredSwitchDefault>, DefaultIgnore;
def warn_not_in_enum : Warning<"case value not in enumerated type %0">,
  InGroup<Switch>;
def warn_not_in_enum_assignement : Warning<"integer constant not in range "
  "of enumerated type %0">, InGroup<DiagGroup<"assign-enum">>, DefaultIgnore;
def err_typecheck_statement_requires_scalar : Error<
  "statement requires expression of scalar type (%0 invalid)">;
def err_typecheck_statement_requires_integer : Error<
  "statement requires expression of integer type (%0 invalid)">;
def err_multiple_default_labels_defined : Error<
  "multiple default labels in one switch">;
def err_switch_multiple_conversions : Error<
  "multiple conversions from switch condition type %0 to an integral or "
  "enumeration type">;
def note_switch_conversion : Note<
  "conversion to %select{integral|enumeration}0 type %1">;
def err_switch_explicit_conversion : Error<
  "switch condition type %0 requires explicit conversion to %1">;
def err_switch_incomplete_class_type : Error<
  "switch condition has incomplete class type %0">;

def warn_empty_if_body : Warning<
  "if statement has empty body">, InGroup<EmptyBody>;
def warn_empty_for_body : Warning<
  "for loop has empty body">, InGroup<EmptyBody>;
def warn_empty_range_based_for_body : Warning<
  "range-based for loop has empty body">, InGroup<EmptyBody>;
def warn_empty_while_body : Warning<
  "while loop has empty body">, InGroup<EmptyBody>;
def warn_empty_switch_body : Warning<
  "switch statement has empty body">, InGroup<EmptyBody>;
def note_empty_body_on_separate_line : Note<
  "put the semicolon on a separate line to silence this warning">;

def err_va_start_used_in_non_variadic_function : Error<
  "'va_start' used in function with fixed args">;
def warn_second_parameter_of_va_start_not_last_named_argument : Warning<
  "second parameter of 'va_start' not last named argument">;
def err_first_argument_to_va_arg_not_of_type_va_list : Error<
  "first argument to 'va_arg' is of type %0 and not 'va_list'">;
def err_second_parameter_to_va_arg_incomplete: Error<
  "second argument to 'va_arg' is of incomplete type %0">;
def err_second_parameter_to_va_arg_abstract: Error<
  "second argument to 'va_arg' is of abstract type %0">;
def warn_second_parameter_to_va_arg_not_pod : Warning<
  "second argument to 'va_arg' is of non-POD type %0">,
  InGroup<NonPODVarargs>, DefaultError;
def warn_second_parameter_to_va_arg_ownership_qualified : Warning<
  "second argument to 'va_arg' is of ARC ownership-qualified type %0">,
  InGroup<NonPODVarargs>, DefaultError;
def warn_second_parameter_to_va_arg_never_compatible : Warning<
  "second argument to 'va_arg' is of promotable type %0; this va_arg has "
  "undefined behavior because arguments will be promoted to %1">;

def warn_return_missing_expr : Warning<
  "non-void %select{function|method}1 %0 should return a value">, DefaultError,
  InGroup<ReturnType>;
def ext_return_missing_expr : ExtWarn<
  "non-void %select{function|method}1 %0 should return a value">, DefaultError,
  InGroup<ReturnType>;
def ext_return_has_expr : ExtWarn<
  "%select{void function|void method|constructor|destructor}1 %0 "
  "should not return a value">,
  DefaultError, InGroup<ReturnType>;
def ext_return_has_void_expr : Extension<
  "void %select{function|method|block}1 %0 should not return void expression">;
def err_return_init_list : Error<
  "%select{void function|void method|constructor|destructor}1 %0 "
  "must not return a value">;
def warn_noreturn_function_has_return_expr : Warning<
  "function %0 declared 'noreturn' should not return">,
  InGroup<InvalidNoreturn>;
def warn_falloff_noreturn_function : Warning<
  "function declared 'noreturn' should not return">,
  InGroup<InvalidNoreturn>;
def err_noreturn_block_has_return_expr : Error<
  "block declared 'noreturn' should not return">;
def err_noreturn_missing_on_first_decl : Error<
  "function declared '[[noreturn]]' after its first declaration">;
def note_noreturn_missing_first_decl : Note<
  "declaration missing '[[noreturn]]' attribute is here">;
def err_carries_dependency_missing_on_first_decl : Error<
  "%select{function|parameter}0 declared '[[carries_dependency]]' "
  "after its first declaration">;
def note_carries_dependency_missing_first_decl : Note<
  "declaration missing '[[carries_dependency]]' attribute is here">;
def err_carries_dependency_param_not_function_decl : Error<
  "'[[carries_dependency]]' attribute only allowed on parameter in a function "
  "declaration or lambda">;
def err_block_on_nonlocal : Error<
  "__block attribute not allowed, only allowed on local variables">;
def err_block_on_vm : Error<
  "__block attribute not allowed on declaration with a variably modified type">;

def err_shufflevector_non_vector : Error<
  "first two arguments to __builtin_shufflevector must be vectors">;
def err_shufflevector_incompatible_vector : Error<
  "first two arguments to __builtin_shufflevector must have the same type">;
def err_shufflevector_nonconstant_argument : Error<
  "index for __builtin_shufflevector must be a constant integer">;
def err_shufflevector_argument_too_large : Error<
  "index for __builtin_shufflevector must be less than the total number "
  "of vector elements">;

def err_vector_incorrect_num_initializers : Error<
  "%select{too many|too few}0 elements in vector initialization (expected %1 elements, have %2)">;
def err_altivec_empty_initializer : Error<"expected initializer">;

def err_invalid_neon_type_code : Error<
  "incompatible constant for this __builtin_neon function">; 
def err_argument_invalid_range : Error<
  "argument should be a value from %0 to %1">;

def err_builtin_longjmp_invalid_val : Error<
  "argument to __builtin_longjmp must be a constant 1">;

def err_constant_integer_arg_type : Error<
  "argument to %0 must be a constant integer">;

def ext_mixed_decls_code : Extension<
  "ISO C90 forbids mixing declarations and code">,
  InGroup<DiagGroup<"declaration-after-statement">>;
  
def err_non_local_variable_decl_in_for : Error<
  "declaration of non-local variable in 'for' loop">;
def err_non_variable_decl_in_for : Error<
  "non-variable declaration in 'for' loop">;
def err_toomany_element_decls : Error<
  "only one element declaration is allowed">;
def err_selector_element_not_lvalue : Error<
  "selector element is not a valid lvalue">;
def err_selector_element_type : Error<
  "selector element type %0 is not a valid object">;
def err_collection_expr_type : Error<
  "the type %0 is not a pointer to a fast-enumerable object">;
def warn_collection_expr_type : Warning<
  "collection expression type %0 may not respond to %1">;

def err_invalid_conversion_between_ext_vectors : Error<
  "invalid conversion between ext-vector type %0 and %1">;

def warn_duplicate_attribute : Warning<
  "attribute %0 is already applied with different parameters">,
  InGroup<IgnoredAttributes>;

// Type
def ext_invalid_sign_spec : Extension<"'%0' cannot be signed or unsigned">;
def warn_receiver_forward_class : Warning<
    "receiver %0 is a forward class and corresponding @interface may not exist">,
    InGroup<ForwardClassReceiver>;
def note_method_sent_forward_class : Note<"method %0 is used for the forward class">;
def ext_missing_declspec : ExtWarn<
  "declaration specifier missing, defaulting to 'int'">;
def ext_missing_type_specifier : ExtWarn<
  "type specifier missing, defaults to 'int'">,
  InGroup<ImplicitInt>;
def err_decimal_unsupported : Error<
  "GNU decimal type extension not supported">;
def err_missing_type_specifier : Error<
  "C++ requires a type specifier for all declarations">;
def err_objc_array_of_interfaces : Error<
  "array of interface %0 is invalid (probably should be an array of pointers)">;
def ext_c99_array_usage : Extension<
  "%select{qualifier in |static |}0array size %select{||'[*] '}0is a C99 "
  "feature">, InGroup<C99>;
def err_c99_array_usage_cxx : Error<
  "%select{qualifier in |static |}0array size %select{||'[*] '}0is a C99 "
  "feature, not permitted in C++">;
def err_double_requires_fp64 : Error<
  "use of type 'double' requires cl_khr_fp64 extension to be enabled">;
def err_int128_unsupported : Error<
  "__int128 is not supported on this target">;
def err_nsconsumed_attribute_mismatch : Error<
  "overriding method has mismatched ns_consumed attribute on its"
  " parameter">;
def err_nsreturns_retained_attribute_mismatch : Error<
  "overriding method has mismatched ns_returns_%select{not_retained|retained}0"
  " attributes">;
  
def note_getter_unavailable : Note<
  "or because setter is declared here, but no getter method %0 is found">;
def err_invalid_protocol_qualifiers : Error<
  "invalid protocol qualifiers on non-ObjC type">;
def warn_ivar_use_hidden : Warning<
  "local declaration of %0 hides instance variable">,
   InGroup<DiagGroup<"shadow-ivar">>;
def error_ivar_use_in_class_method : Error<
  "instance variable %0 accessed in class method">;
def error_implicit_ivar_access : Error<
  "instance variable %0 cannot be accessed because 'self' has been redeclared">;
def error_private_ivar_access : Error<"instance variable %0 is private">,
  AccessControl;
def error_protected_ivar_access : Error<"instance variable %0 is protected">,
  AccessControl;
def warn_maynot_respond : Warning<"%0 may not respond to %1">;
def warn_attribute_method_def : Warning<
  "attributes on method implementation and its declaration must match">,
  InGroup<DiagGroup<"mismatched-method-attributes">>;
def ext_typecheck_base_super : Warning<
  "method parameter type "
  "%diff{$ does not match super class method parameter type $|"
  "does not match super class method parameter type}0,1">,
   InGroup<SuperSubClassMismatch>, DefaultIgnore;
def warn_missing_method_return_type : Warning<
  "method has no return type specified; defaults to 'id'">,
  InGroup<MissingMethodReturnType>, DefaultIgnore;
def warn_direct_ivar_access : Warning<"instance variable %0 is being "
  "directly accessed">, InGroup<DiagGroup<"direct-ivar-access">>, DefaultIgnore;

// Spell-checking diagnostics
def err_unknown_type_or_class_name_suggest : Error<
  "unknown %select{type|class}2 name %0; did you mean %1?">;
def err_unknown_typename_suggest : Error<
  "unknown type name %0; did you mean %1?">;
def err_unknown_nested_typename_suggest : Error<
  "no type named %0 in %1; did you mean %2?">;
def err_no_member_suggest : Error<"no member named %0 in %1; did you mean %2?">;
def err_undeclared_use_suggest : Error<
  "use of undeclared %0; did you mean %1?">;
def err_undeclared_var_use_suggest : Error<
  "use of undeclared identifier %0; did you mean %1?">;
def err_no_template_suggest : Error<"no template named %0; did you mean %1?">;
def err_no_member_template_suggest : Error<
  "no template named %0 in %1; did you mean %2?">;
def err_mem_init_not_member_or_class_suggest : Error<
  "initializer %0 does not name a non-static data member or base "
  "class; did you mean the %select{base class|member}1 %2?">;
def err_field_designator_unknown_suggest : Error<
  "field designator %0 does not refer to any field in type %1; did you mean "
  "%2?">;
def err_typecheck_member_reference_ivar_suggest : Error<
  "%0 does not have a member named %1; did you mean %2?">;
def err_property_not_found_suggest : Error<
  "property %0 not found on object of type %1; did you mean %2?">;
def err_ivar_access_using_property_syntax_suggest : Error<
  "property %0 not found on object of type %1; did you mean to access instance variable %2?">;
def err_property_found_suggest : Error<
  "property %0 found on object of type %1; did you mean to access "
  "it with the \".\" operator?">;
def err_undef_interface_suggest : Error<
  "cannot find interface declaration for %0; did you mean %1?">;
def warn_undef_interface_suggest : Warning<
  "cannot find interface declaration for %0; did you mean %1?">;
def err_undef_superclass_suggest : Error<
  "cannot find interface declaration for %0, superclass of %1; did you mean "
  "%2?">;
def err_undeclared_protocol_suggest : Error<
  "cannot find protocol declaration for %0; did you mean %1?">;
def note_base_class_specified_here : Note<
  "base class %0 specified here">;
def err_using_directive_suggest : Error<
  "no namespace named %0; did you mean %1?">;
def err_using_directive_member_suggest : Error<
  "no namespace named %0 in %1; did you mean %2?">;
def note_namespace_defined_here : Note<"namespace %0 defined here">;
def err_sizeof_pack_no_pack_name_suggest : Error<
  "%0 does not refer to the name of a parameter pack; did you mean %1?">;
def note_parameter_pack_here : Note<"parameter pack %0 declared here">;

def err_uncasted_use_of_unknown_any : Error<
  "%0 has unknown type; cast it to its declared type to use it">;
def err_uncasted_call_of_unknown_any : Error<
  "%0 has unknown return type; cast the call to its declared return type">;
def err_uncasted_send_to_unknown_any_method : Error<
  "no known method %select{%objcinstance1|%objcclass1}0; cast the "
  "message send to the method's return type">;
def err_unsupported_unknown_any_decl : Error<
  "%0 has unknown type, which is unsupported for this kind of declaration">;
def err_unsupported_unknown_any_expr : Error<
  "unsupported expression with unknown type">;
def err_unsupported_unknown_any_call : Error<
  "call to unsupported expression with unknown type">;
def err_unknown_any_addrof : Error<
  "the address of a declaration with unknown type "
  "can only be cast to a pointer type">;
def err_unknown_any_var_function_type : Error<
  "variable %0 with unknown type cannot be given a function type">;
def err_unknown_any_function : Error<
  "function %0 with unknown type must be given a function type">;

def err_filter_expression_integral : Error<
  "filter expression type should be an integral value not %0">;

// OpenCL warnings and errors.
def err_invalid_astype_of_different_size : Error<
  "invalid reinterpretation: sizes of %0 and %1 must match">;
def err_static_kernel : Error<
  "kernel functions cannot be declared static">;
def err_opencl_ptrptr_kernel_arg : Error<
  "kernel argument cannot be declared as a pointer to a pointer">;
def err_static_function_scope : Error<
  "variables in function scope cannot be declared static">;
def err_opencl_bitfields : Error<
  "bitfields are not supported in OpenCL">;
def err_opencl_vla : Error<
  "variable length arrays are not supported in OpenCL">;
def err_event_t_kernel_arg : Error<
  "the event_t type cannot be used to declare a kernel function argument">;
def err_event_t_global_var : Error<
  "the event_t type cannot be used to declare a program scope variable">;
def err_event_t_struct_field : Error<
  "the event_t type cannot be used to declare a structure or union field">;
def err_event_t_addr_space_qual : Error<
  "the event_t type can only be used with __private address space qualifier">;
def err_expected_kernel_void_return_type : Error<
  "kernel must have void return type">;
def err_sampler_argument_required : Error<
  "sampler_t variable required - got %0">;
def err_wrong_sampler_addressspace: Error<
  "sampler type cannot be used with the __local and __global address space qualifiers">;
def err_opencl_global_invalid_addr_space : Error<
  "global variables must have a constant address space qualifier">;
  
// OpenMP support.
def err_omp_expected_var_arg_suggest : Error<
  "%0 is not a global variable, static local variable or static data member%select{|; did you mean %2?}1">;
def err_omp_global_var_arg : Error<
  "arguments of '#pragma omp %0' must have %select{global storage|static storage duration}1">;
def err_omp_ref_type_arg : Error<
  "arguments of '#pragma omp %0' cannot be of reference type %1">;
def err_omp_var_scope : Error<
  "'#pragma omp %0' must appear in the scope of the %1 variable declaration">;
def err_omp_var_used : Error<
  "'#pragma omp %0' must precede all references to variable %1">;
def err_omp_var_thread_local : Error<
  "variable %0 cannot be threadprivate because it is thread-local">;
def err_omp_incomplete_type : Error<
  "a threadprivate variable must not have incomplete type %0">;

} // end of sema category

let CategoryName = "Related Result Type Issue" in {
// Objective-C related result type compatibility
def warn_related_result_type_compatibility_class : Warning<
  "method is expected to return an instance of its class type "
  "%diff{$, but is declared to return $|"
  ", but is declared to return different type}0,1">;
def warn_related_result_type_compatibility_protocol : Warning<
  "protocol method is expected to return an instance of the implementing "
  "class, but is declared to return %0">;
def note_related_result_type_family : Note<
  "%select{overridden|current}0 method is part of the '%select{|alloc|copy|init|"
  "mutableCopy|new|autorelease|dealloc|finalize|release|retain|retainCount|"
  "self}1' method family%select{| and is expected to return an instance of its "
  "class type}0">;
def note_related_result_type_overridden : Note<
  "overridden method returns an instance of its class type">;
def note_related_result_type_inferred : Note<
  "%select{class|instance}0 method %1 is assumed to return an instance of "
  "its receiver type (%2)">;
def note_related_result_type_explicit : Note<
  "%select{overridden|current}0 method is explicitly declared 'instancetype'"
  "%select{| and is expected to return an instance of its class type}0">;

}

let CategoryName = "Modules Issue" in {
def err_module_private_specialization : Error<
  "%select{template|partial|member}0 specialization cannot be "
  "declared __module_private__">;
def err_module_private_local : Error<
  "%select{local variable|parameter|typedef}0 %1 cannot be declared "
  "__module_private__">;
def err_module_private_local_class : Error<
  "local %select{struct|interface|union|class|enum}0 cannot be declared "
  "__module_private__">;
def err_module_private_definition : Error<
  "definition of %0 must be imported from module '%1' before it is required">;
}

let CategoryName = "Documentation Issue" in {
def warn_not_a_doxygen_trailing_member_comment : Warning<
  "not a Doxygen trailing comment">, InGroup<Documentation>, DefaultIgnore;
} // end of documentation issue category

} // end of sema component.