extern void *memcpy (void *, const void *, __SIZE_TYPE__); typedef int word_type; static void copy_reg (unsigned int reg, frame_state *udata, /* { dg-error "unknown type name" } */ frame_state *target_udata) /* { dg-error "unknown type name" } */ { word_type *preg = ge_reg_addr (reg, udata, 0); word_type *ptreg = ge_reg_addr (reg, target_udata, 0); memcpy (ptreg, preg, __builtin_dwarf_reg_size (reg)); }