diff --git a/test/Transforms/GVN/rle.ll b/test/Transforms/GVN/rle.ll
index 736a7e40ecc..04b38e4eb7f 100644
--- a/test/Transforms/GVN/rle.ll
+++ b/test/Transforms/GVN/rle.ll
@@ -200,6 +200,7 @@ Cont:
 ;;===----------------------------------------------------------------------===;;
 
 ;; i32 -> f32 forwarding.
+;; PR4216
 define i8 @coerce_offset0(i32 %V, i32* %P) {
   store i32 %V, i32* %P