diff --git a/llvm/test/Regression/Transforms/ScalarRepl/union-pointer.ll b/llvm/test/Regression/Transforms/ScalarRepl/union-pointer.ll
new file mode 100644
index 0000000000000000000000000000000000000000..427ceec958ea00ff248197e3b88751fa839ff74a
--- /dev/null
+++ b/llvm/test/Regression/Transforms/ScalarRepl/union-pointer.ll
@@ -0,0 +1,18 @@
+
+; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | not grep alloca &&
+; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep 'ret sbyte'
+
+target endian = little
+target pointersize = 32
+target triple = "i686-apple-darwin8.7.2"
+
+implementation   ; Functions:
+
+sbyte* %test(short* %X) {
+        %X_addr = alloca short*
+        store short* %X, short** %X_addr
+        %X_addr = cast short** %X_addr to sbyte**
+        %tmp = load sbyte** %X_addr
+        ret sbyte* %tmp
+}
+