Method BuildCtrlRegstDescIfNeed

oneflow/core/graph/task_node.cpp:276–283

}

bool TaskNode::BuildCtrlRegstDescIfNeed(TaskNode* dst_node, std::string* name) {
  if (IsMeaningLess() || dst_node->IsMeaningLess()) { return false; }
  for (const TaskEdge* in_edge : dst_node->in_edges()) {
    if (in_edge->src_node() == this) { return false; }
  }
  BuildCtrlRegstDesc(dst_node, name);
  return true;
}

RegstDesc* TaskNode::BuildCtrlRegstDesc(TaskNode* dst_node) {
  std::string name;