1 files changed, 11 insertions, 0 deletions
diff --git a/testsuite/tests/th/TH_tf3.hs b/testsuite/tests/th/TH_tf3.hs
new file mode 100644
index 0000000000..08e089fdf1
--- /dev/null
+++ b/testsuite/tests/th/TH_tf3.hs
@@ -0,0 +1,11 @@
+{-# LANGUAGE TypeFamilies, FlexibleInstances, UndecidableInstances #-}
+
+module TH_tf3 where
+
+type family T a
+
+$( [d| foo :: T [a] ~ Bool => a -> a
+       foo x = x |] )
+
+$( [d| class C a 
+       instance a ~ Int => C a |] )
+\ No newline at end of file