fix data directlly connect netoutput scene

tests/ut/ge/hybrid/ge_hybrid_unittest.cc

@@ -39,7 +39,7 @@
 #include "hybrid/common/npu_memory_allocator.h"
 #include "graph/types.h"
 #include "graph/utils/tensor_utils.h"
-
+#include "graph/testcase/ge_graph/graph_builder_utils.h"
 #undef private
 #undef protected
 
@@ -173,6 +173,33 @@ TEST_F(UtestGeHybrid, parse_force_infershape_nodes) {
   HybridModelBuilder hybrid_model_builder(hybrid_model);
   ASSERT_EQ(hybrid_model_builder.ParseForceInfershapeNodes(node, *new_node), SUCCESS);
 }
+static ComputeGraphPtr BuildDataDirectConnectGraph() {
+  ge::ut::GraphBuilder builder("subgraph");
+  auto data = builder.AddNode("Data", "Data", 1, 1);
+  auto netoutput = builder.AddNode("Netoutput", "Netoutput", 1, 1);
+
+  builder.AddDataEdge(data, 0, netoutput, 0);
+  return builder.GetGraph();
+}
+TEST_F(UtestGeHybrid, data_direct_connect) {
+  std::unique_ptr<NodeItem> node_item;
+  auto root_graph = make_shared<ComputeGraph>("root_graph");
+  OpDescPtr op_desc = CreateOpDesc("PartitionedCall", "PartitionedCall");
+  auto node = root_graph->AddNode(op_desc);
+  auto sub_graph = BuildDataDirectConnectGraph();
+  sub_graph->SetParentGraph(root_graph);
+  sub_graph->SetParentNode(node);
+  node->GetOpDesc()->AddSubgraphName("subgraph");
+  node->GetOpDesc()->SetSubgraphInstanceName(0, "subgraph");
+  root_graph->AddSubgraph("subgraph", sub_graph);
+  std::unique_ptr<NodeItem> new_node;
+  NodeItem::Create(node, new_node);
+  GeRootModelPtr ge_root_model = make_shared<GeRootModel>(root_graph);
+  HybridModel hybrid_model(ge_root_model);
+  HybridModelBuilder hybrid_model_builder(hybrid_model);
+  auto ret = hybrid_model_builder.IdentifyVariableOutputs(*new_node.get());
+  ASSERT_EQ(ret, SUCCESS);
+}
 
 TEST_F(UtestGeHybrid, index_taskdefs_success) {
   // build aicore task