fix bug and mac compile

paddle/fluid/operators/jit/benchmark.cc

@@ -12,9 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License. */
 
-// #include <cstring>  // for memcpy
-// #include <random>
 #include <iostream>
+#include <random>
 #include <string>
 #include <vector>
 #include "gflags/gflags.h"

paddle/fluid/operators/jit/helper.h

@@ -49,6 +49,7 @@ inline typename KernelTuples::func_type GetJitCode(
     // pool: (KernelKey(type, place), vector<GenCreatorPtr>)
     auto& creator_map = JitCodeCreatorPool().Instance().AllCreators();
     auto iter = creator_map.find(kkey);
+    if (iter != creator_map.end()) {
       auto& creators = iter->second;
       for (auto& cur : creators) {
         auto i = dynamic_cast<const JitCodeCreator<Attr>*>(cur.get());
@@ -62,6 +63,7 @@ inline typename KernelTuples::func_type GetJitCode(
         }
       }
     }
+  }
   return nullptr;
 }