diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -5665,7 +5665,10 @@
   }
   RemangledIntrinsics.clear();
 
-  UpgradeDebugInfo(*TheModule);
+  if (StripDebugInfo)
+    llvm::StripDebugInfo(*TheModule);
+  else
+    UpgradeDebugInfo(*TheModule);
 
   UpgradeModuleFlags(*TheModule);