diff --git a/llvm/lib/IR/Attributes.cpp b/llvm/lib/IR/Attributes.cpp
--- a/llvm/lib/IR/Attributes.cpp
+++ b/llvm/lib/IR/Attributes.cpp
@@ -446,14 +446,6 @@
                     Twine(Kind == UWTableKind::Sync ? "sync" : "async") + ")")
                        .str();
     }
-
-    if (Kind != UWTableKind::None) {
-      if (Kind == UWTableKind::Default)
-        return "uwtable";
-      return ("uwtable(" + Twine(Kind == UWTableKind::Sync ? "sync" : "async") +
-              ")")
-          .str();
-    }
   }
 
   // Convert target-dependent attributes to strings of the form: