int physType = phys.getPhysicalRegisterType(symbReg);
int physType = OPT_PhysicalRegisterSet.getPhysicalRegisterType(symbReg);
  final OPT_Register allocateVolatileRegister(OPT_Register symbReg) {    OPT_PhysicalRegisterSet phys = ir.regpool.getPhysicalRegisterSet();    int physType = phys.getPhysicalRegisterType(symbReg);    for (Enumeration e = phys.enumerateVolatiles(physType);         e.hasMoreElements(); ) {      OPT_Register realReg = (OPT_Register)e.nextElement();      if (realReg.isAvailable()) {        realReg.allocateToRegister(symbReg);        if (debug) VM.sysWrite(" volat."+realReg+" to symb "+symbReg+'\n');        return realReg;      }    }    return null;  }