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-rw-r--r--compiler/ilxGen/tests/test9.hs10
1 files changed, 10 insertions, 0 deletions
diff --git a/compiler/ilxGen/tests/test9.hs b/compiler/ilxGen/tests/test9.hs
new file mode 100644
index 0000000000..311b65c4e1
--- /dev/null
+++ b/compiler/ilxGen/tests/test9.hs
@@ -0,0 +1,10 @@
+data Tree a = Node (Tree a) (Tree a)
+
+left (Node x y) = x
+right (Node x y) = y
+
+choose (Node (Node _ _) (Node _ _)) = "hello world!\n"
+
+mk f = f (mk f) (mk f)
+main = putStr (choose (mk Node))
+