diff --git a/bolt/lib/Profile/DataReader.cpp b/bolt/lib/Profile/DataReader.cpp
--- a/bolt/lib/Profile/DataReader.cpp
+++ b/bolt/lib/Profile/DataReader.cpp
@@ -405,6 +405,11 @@
     }
   }
 
+  if (opts::Verbosity >= 2 && MismatchedBranches > 0) {
+    errs() << "BOLT-WARNING: found " << MismatchedBranches
+           << "Mismatched Branches\n";
+  }
+
   // Convert branch data into annotations.
   convertBranchData(BF);
 }