diff --git a/llvm/test/Transforms/InstSimplify/vscale.ll b/llvm/test/Transforms/InstSimplify/vscale.ll
--- a/llvm/test/Transforms/InstSimplify/vscale.ll
+++ b/llvm/test/Transforms/InstSimplify/vscale.ll
@@ -90,7 +90,7 @@
 ; CHECK-LABEL: @insert_extract_element_same_vec_idx_2(
 ; CHECK-NEXT:    ret i32 1
 ;
-  %v = insertelement <vscale x 4 x i32> undef, i32 1, i64 4
+  %v = insertelement <vscale x 4 x i32> %a, i32 1, i64 4
   %r = extractelement <vscale x 4 x i32> %v, i64 4
   ret i32 %r
 }