diff --git a/test/CodeGen/Alpha/add128.ll b/test/CodeGen/Alpha/add128.ll
new file mode 100644
index 0000000..3f243d1
--- /dev/null
+++ b/test/CodeGen/Alpha/add128.ll
@@ -0,0 +1,10 @@
+;test for ADDC and ADDE expansion
+;
+; RUN: llvm-as < %s | llc -march=alpha -o %t.s -f
+; XFAIL: *
+
+define i128 @add128(i128 %x, i128 %y) {
+entry:
+	%tmp = add i128 %y, %x
+	ret i128 %tmp
+}