Add BuiltinOperatorName print in debug log info
diff --git a/tensorflow/lite/optional_debug_tools.cc b/tensorflow/lite/optional_debug_tools.cc
index a59af3d..6ed9457 100644
--- a/tensorflow/lite/optional_debug_tools.cc
+++ b/tensorflow/lite/optional_debug_tools.cc
@@ -13,7 +13,7 @@
 limitations under the License.
 ==============================================================================*/
 #include "tensorflow/lite/optional_debug_tools.h"
-
+#include "tensorflow/lite/schema/schema_generated.h"
 namespace tflite {
 
 void PrintIntVector(const std::vector<int>& v) {
@@ -107,8 +107,8 @@
       printf("Node %3zu Operator Custom Name %s\n", node_index,
              reg.custom_name);
     } else {
-      printf("Node %3zu Operator Builtin Code %3d\n", node_index,
-             reg.builtin_code);
+      printf("Node %3zu Operator Builtin Code %3d %s\n", node_index,
+             reg.builtin_code, EnumNamesBuiltinOperator()[reg.builtin_code]);
     }
     printf("  Inputs:");
     PrintTfLiteIntVector(node.inputs);