diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.h b/llvm/lib/Bitcode/Reader/BitcodeReader.h
index 1fa6f82..14033b0 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.h
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.h
@@ -212,7 +212,7 @@
 private:
   const Type *getTypeByID(unsigned ID, bool isTypeTable = false);
   Value *getFnValueByID(unsigned ID, const Type *Ty) {
-    if (Ty->isMetadataTy())
+    if (Ty && Ty->isMetadataTy())
       return MDValueList.getValueFwdRef(ID);
     return ValueList.getValueFwdRef(ID, Ty);
   }