1 files changed, 16 insertions, 0 deletions
diff --git a/test/coq/pass/unpacking.sail b/test/coq/pass/unpacking.sail
new file mode 100644
index 00000000..d0143f40
--- /dev/null
+++ b/test/coq/pass/unpacking.sail
@@ -0,0 +1,16 @@
+default Order dec
+
+$include <prelude.sail>
+
+val f : int -> {'n, 'n >= 0. int('n)} effect {rreg}
+val g : int -> {'n, 'n >= 0. int('n)}
+
+val test : unit -> int effect {rreg}
+
+function test() = {
+  let x1 : {'n, 'n >= 0. int('n)} = f(5);
+  let x2 : int = f(6);
+  let y1 : {'n, 'n >= 0. int('n)} = g(7);
+  let y2 : int = g(8);
+  x1 + x2 + y1 + y2
+}