if (op instanceof OPT_AddressConstantOperand) return op.asAddressConstant().value.toInt();
  private static int getIntValue(OPT_Operand op) {    if (op instanceof OPT_NullConstantOperand)       return 0;    if (op instanceof OPT_IntConstantOperand)      return op.asIntConstant().value;    if (op instanceof OPT_AddressConstantOperand)      return op.asAddressConstant().value.toInt();  // not portable    throw new OPT_OptimizingCompilerException("Cannot getIntValue from this operand " + op);  }