}
  }

  return changed;
}

Node* MarkForCompilationPassImpl::GetOnlyNodeIn(const Cluster& cluster) {
  return cluster.cluster_size() == 1
             ? graph_->FindNodeId(cluster.GetIdOfOnlyNode())
             : nullptr;
}

bool MarkForCompilationPassImpl::IsSinkLike(const Cluster& cluster) {
  if (Node* n = GetOnlyNodeIn(cluster)) {
    return n->type_string() == "NoOp" && n->out_edges().size() == 1 &&