Method SetProducer

tensorflow/lite/delegates/gpu/common/model.h:257–284

  }

  Status SetProducer(NodeId producer, ValueId value) final {
    ValueDef* v;
    RETURN_IF_ERROR(LookupValue(value, &v));
    Value<TensorT>* value_ptr = v->value.get();
    NodeDef* n;
    RETURN_IF_ERROR(LookupNode(producer, &n));
    Node* node_ptr = n->node.get();

    // check if this value has the same producer already
    if (node_ptr == v->producer) {
      return InvalidArgumentError("Node is already a producer of the value");
    }

    // Check if the node is a consumer of this value.
    if (std::find(n->inputs.begin(), n->inputs.end(), value_ptr) !=
        n->inputs.end()) {
      return InvalidArgumentError("Node is a consumer of the value");
    }
    // TODO(akulik): detect circular dependency?

    if (v->producer != nullptr) {
      // value is no longer produced by it's previous producer.
      Erase(&nodes_[v->producer->id].outputs, value_ptr);
    }
    v->producer = node_ptr;
    n->outputs.push_back(value_ptr);
    return OkStatus();
  }

  Status RemoveProducer(ValueId value) final {
    ValueDef* v;