diff --git a/bolt/lib/Rewrite/DWARFRewriter.cpp b/bolt/lib/Rewrite/DWARFRewriter.cpp
--- a/bolt/lib/Rewrite/DWARFRewriter.cpp
+++ b/bolt/lib/Rewrite/DWARFRewriter.cpp
@@ -485,6 +485,8 @@
         Optional<uint64_t> Address = AttrVal.V.getAsAddress();
         const BinaryFunction *Function =
             BC.getBinaryFunctionContainingAddress(*Address);
+        if (!Function)
+          return;
         const uint64_t UpdatedAddress =
             Function->translateInputToOutputAddress(*Address);
         const uint32_t Index =