Bugfix: support unknown control op subgraph

tests/ut/ge/hybrid/ge_hybrid_unittest.cc

@@ -265,19 +265,21 @@ TEST_F(UtestGeHybrid, unfold_subgraphs_success) {
   NodePtr sub_sub_graph_while_cond_data_node = sub_sub_graph1->AddNode(sub_sub_graph_while_cond_data_op_desc);
 
   ComputeGraphPtr sub_sub_graph2 = std::make_shared<ComputeGraph>("while body");
-  OpDescPtr sub_sub_graph_while_body_const_op_desc = CreateOpDesc("body_const", CONSTANT);
-  NodePtr sub_sub_graph_while_body_const_node = sub_sub_graph2->AddNode(sub_sub_graph_while_body_const_op_desc);
+  /*OpDescPtr sub_sub_graph_while_body_const_op_desc = CreateOpDesc("body_const", CONSTANT);
+  NodePtr sub_sub_graph_while_body_const_node = sub_sub_graph2->AddNode(sub_sub_graph_while_body_const_op_desc);*/
   OpDescPtr sub_sub_graph_while_body_data_op_desc = CreateOpDesc("body_data", DATA);
   NodePtr sub_sub_graph_while_body_data_node = sub_sub_graph2->AddNode(sub_sub_graph_while_body_data_op_desc);
-  OpDescPtr sub_sub_graph_while_body_add_op_desc = CreateOpDesc("body_add", ADD);
+  /*OpDescPtr sub_sub_graph_while_body_add_op_desc = CreateOpDesc("body_add", ADD);
   NodePtr sub_sub_graph_while_body_add_node = sub_sub_graph2->AddNode(sub_sub_graph_while_body_add_node);
   sub_sub_graph_while_body_add_node->AddLinkFrom(sub_sub_graph_while_body_data_node);
-  sub_sub_graph_while_body_add_node->AddLinkFrom(sub_sub_graph_while_body_const_node);
+  sub_sub_graph_while_body_add_node->AddLinkFrom(sub_sub_graph_while_body_const_node);*/
 
   ComputeGraphPtr sub_graph = std::make_shared<ComputeGraph>("sub_graph");
   OpDescPtr sub_graph_while_op_desc = CreateOpDesc("while", WHILE);
   NodePtr sub_graph_while_node = sub_graph->AddNode(sub_graph_while_op_desc);
   sub_graph->SetGraphUnknownFlag(true);
+  sub_graph_while_node->GetOpDesc()->AddSubgraphName("while_cond");
+  sub_graph_while_node->GetOpDesc()->AddSubgraphName("while_body");
   sub_graph_while_node->GetOpDesc()->SetSubgraphInstanceName(0, "while_cond");
   sub_graph_while_node->GetOpDesc()->SetSubgraphInstanceName(1, "while_body");