Add the profile_mkldnn flag for profile function(test=develop)

paddle/fluid/inference/tests/api/analyzer_dam_tester.cc

@@ -188,10 +188,14 @@ void SetInput(std::vector<std::vector<PaddleTensor>> *inputs) {
 }
 
 // Easy for profiling independently.
-TEST(Analyzer_dam, profile) {
+void profile(bool use_mkldnn = false) {
   contrib::AnalysisConfig cfg;
   SetConfig(&cfg);
 
+  if (use_mkldnn) {
+    cfg.EnableMKLDNN();
+  }
+
   std::vector<PaddleTensor> outputs;
   std::vector<std::vector<PaddleTensor>> input_slots_all;
   SetInput(&input_slots_all);
@@ -209,6 +213,11 @@ TEST(Analyzer_dam, profile) {
   }
 }
 
+TEST(Analyzer_dam, profile) { profile(); }
+#ifdef PADDLE_WITH_MKLDNN
+TEST(Analyzer_dam, profile_mkldnn) { profile(true /* use_mkldnn */); }
+#endif
+
 // Check the fuse status
 TEST(Analyzer_dam, fuse_statis) {
   contrib::AnalysisConfig cfg;