--- a/gen/structs.h	Thu May 14 17:23:55 2009 +0200
+++ b/gen/structs.h	Thu May 14 20:36:55 2009 +0200
@@ -18,4 +18,18 @@
 /// index a struct one level
 LLValue* DtoIndexStruct(LLValue* src, StructDeclaration* sd, VarDeclaration* vd);
 
+/// Return the type returned by DtoUnpaddedStruct called on a value of the
+/// specified type.
+/// Union types will get expanded into a struct, with a type for each member.
+LLType* DtoUnpaddedStructType(Type* dty);
+
+/// Return the struct value represented by v without the padding fields.
+/// Unions will be expanded, with a value for each member.
+/// Note: v must be a pointer to a struct, but the return value will be a
+///       first-class struct value.
+LLValue* DtoUnpaddedStruct(Type* dty, LLValue* v);
+
+/// Undo the transformation performed by DtoUnpaddedStruct, writing to lval.
+void DtoPaddedStruct(Type* dty, LLValue* v, LLValue* lval);
+
 #endif