Aarch64 vaarg

gcc/d/d-target.def

@@ -56,5 +56,29 @@ DEFHOOK
  unsigned, (void),
  hook_uint_void_0)
 
+/* The types of extra fields to store in TypeInfo for va_arg implementation.  */
+DEFHOOK
+(d_vaarg_ti_types,
+ "Returns types of target-specific fields which need to be inserted into\
+ TypeInfo to support the va_arg variant taking a TypeInfo argument.\
+ The va_arg imlementation can be found in core/stdc/stdarg.d. This function's\
+ first parameter is a @code{tinfo_kind} as fields can be differnt depending\
+ on the kind of TypeInfo. Returns a @code{TREE_LIST} of types and void_zero_node\
+ if no extra fields are needed.",
+ tree, (d_tinfo_kind),
+ d_default_vaarg_ti_types)
+
+/* The initializer values of extra fields to store in TypeInfo.  */
+DEFHOOK
+(d_vaarg_ti_values,
+ "Returns initial values for target-specific fields which need to be inserted\
+ into TypeInfo to support the va_arg variant taking a TypeInfo argument.\
+ The va_arg imlementation can be found in core/stdc/stdarg.d. This function's\
+ first parameter is a @code{tree} for the type described by the TypeInfo\
+ instance. Returns a @code{TREE_LIST} of initial values and NULL_TREE\
+ if no extra fields are needed.",
+ tree, (d_tinfo_kind, tree),
+ d_default_vaarg_ti_values)
+
 /* Close the 'struct gcc_targetdm' definition.  */
 HOOK_VECTOR_END (C90_EMPTY_HACK)

gcc/d/d-target.h

@@ -18,6 +18,30 @@
 #ifndef GCC_D_TARGET_H
 #define GCC_D_TARGET_H
 
+/* Used by target as parameter for d_vaarg_ti_types */
+enum d_tinfo_kind
+{
+  D_TK_TYPEINFO_TYPE,		/* object.TypeInfo  */
+  D_TK_CLASSINFO_TYPE,		/* object.TypeInfo_Class  */
+  D_TK_INTERFACE_TYPE,		/* object.TypeInfo_Interface  */
+  D_TK_STRUCT_TYPE,		/* object.TypeInfo_Struct  */
+  D_TK_POINTER_TYPE,		/* object.TypeInfo_Pointer  */
+  D_TK_ARRAY_TYPE,		/* object.TypeInfo_Array  */
+  D_TK_STATICARRAY_TYPE,		/* object.TypeInfo_StaticArray  */
+  D_TK_ASSOCIATIVEARRAY_TYPE,	/* object.TypeInfo_AssociativeArray  */
+  D_TK_VECTOR_TYPE,		/* object.TypeInfo_Vector  */
+  D_TK_ENUMERAL_TYPE,		/* object.TypeInfo_Enum  */
+  D_TK_FUNCTION_TYPE,		/* object.TypeInfo_Function  */
+  D_TK_DELEGATE_TYPE,		/* object.TypeInfo_Delegate  */
+  D_TK_TYPELIST_TYPE,		/* object.TypeInfo_Tuple  */
+  D_TK_CONST_TYPE,		/* object.TypeInfo_Const  */
+  D_TK_IMMUTABLE_TYPE,		/* object.TypeInfo_Invariant  */
+  D_TK_SHARED_TYPE,		/* object.TypeInfo_Shared  */
+  D_TK_INOUT_TYPE,		/* object.TypeInfo_Inout  */
+  D_TK_CPPTI_TYPE,		/* object.__cpp_type_info_ptr  */
+  D_TK_END,
+};
+
 #define DEFHOOKPOD(NAME, DOC, TYPE, INIT) TYPE NAME;
 #define DEFHOOK(NAME, DOC, TYPE, PARAMS, INIT) TYPE (* NAME) PARAMS;
 #define DEFHOOK_UNDOC DEFHOOK
@@ -31,4 +55,10 @@ extern struct gcc_targetdm targetdm;
 /* Used by target to add predefined version idenditiers.  */
 extern void d_add_builtin_version (const char *);
 
+/* default implementation for d_vaarg_ti_types */
+extern tree d_default_vaarg_ti_types (d_tinfo_kind);
+
+/* default implementation for d_vaarg_ti_values */
+extern tree d_default_vaarg_ti_values (d_tinfo_kind, tree);
+
 #endif /* GCC_D_TARGET_H */