new_output.name(), ") from cluster ", cluster_name));
        new_output = check_numerics_op;
      }

      ops::_XlaMerge xla_merge_op(s.WithOpName("merge_oidx_", oidx),
                                  Output(old_node, oidx), new_output);
      merged_output = merged_outputs[oidx] = xla_merge_op.output;
    }

    Node* dst = e->dst();
    int dst_idx = e->dst_input();