!3774 Sync device data type to return tensor

Merge pull request !3774 from JoyLvliang/sync-device-data-type-to-return-tensor

mindspore/ccsrc/backend/session/session_basic.cc

@@ -86,7 +86,10 @@ BaseRef CreateOneTensor(const AnfNodePtr &node, size_t output_index, const Kerne
   MS_EXCEPTION_IF_NULL(address);
   auto shape = AnfAlgo::GetOutputInferShape(node, output_index);
   TypeId type_id = kNumberTypeFloat32;
-  type_id = AnfAlgo::GetOutputInferDataType(node, output_index);
+  type_id = AnfAlgo::GetOutputDeviceDataType(node, output_index);
+  if (type_id == kTypeUnknown) {
+    type_id = AnfAlgo::GetOutputInferDataType(node, output_index);
+  }
   std::vector<int> temp_shape;
   if (graph.IsInternalOutput(node, output_index)) {
     temp_shape.emplace_back(1);