host_graph->get(),
      std::unordered_set<const Node*>{(*host_graph)->sink_node()});

  // Postprocess edges between different outside compilations.
  TF_RETURN_IF_ERROR(PostprocessEdgesBetweenOutsideCompilations(
      host_graph->get(), outside_compilation_attr_name));

  // Postprocess lifted arg nodes.
  TF_RETURN_IF_ERROR(PostprocessLiftedArgs(host_graph->get(), fld));

  if (VLOG_IS_ON(4)) {