diff --git a/test/CodeGen/CBackend/2004-02-26-FPNotPrintableConstants.llx b/test/CodeGen/CBackend/2004-02-26-FPNotPrintableConstants.llx
index 6be7b7108b5..36b19f3d8c4 100644
--- a/test/CodeGen/CBackend/2004-02-26-FPNotPrintableConstants.llx
+++ b/test/CodeGen/CBackend/2004-02-26-FPNotPrintableConstants.llx
@@ -5,3 +5,6 @@ float %func () {
   ret float 0xFFF0000000000000  ; -inf
 }
 
+double %func2() {
+  ret double 0xFF20000000000000  ; -inf
+}