final void augmentAddress(OPT_RegisterOperand op) {
final void augmentAddress(OPT_Operand op) {
  final void augmentAddress(OPT_RegisterOperand op) {    if (VM.VerifyAssertions) VM.assert(AddrStack != null, "No address to augment");    if (AddrStack.base == null) {      AddrStack.base = op;    } else if (AddrStack.index == null) {