int offset = m.getOffsetAsInt() >>> LOG_BYTES_IN_ADDRESS;
int offset = m.getOffset().toInt() >>> LOG_BYTES_IN_ADDRESS;
  public void updateTIBEntry(VM_Method m) {    if (VM.VerifyAssertions) {      VM_Method vm = findVirtualMethod(m.getName(), m.getDescriptor());      VM._assert(vm == m);    }    int offset = m.getOffsetAsInt() >>> LOG_BYTES_IN_ADDRESS;    typeInformationBlock[offset] = m.getCurrentInstructions();    VM_InterfaceInvocation.updateTIBEntry(this, m);  }