// bridge.
    if (op->isRegistered()) {
      return WalkResult::advance();
    }

    // Find out the compose function
    auto compose_func_name = GetComposeFuncName(op->getName().getStringRef());
    auto compose_func = table.lookup<TFRFuncOp>(compose_func_name);
    if (!compose_func || compose_func.isExternal()) {
      // There are no decomposition methods defined for this op, skip.
      return WalkResult::advance();