1 files changed, 14 insertions, 0 deletions
diff --git a/testsuite/tests/saks/should_fail/T16758.hs b/testsuite/tests/saks/should_fail/T16758.hs
new file mode 100644
index 0000000000..2798156f3c
--- /dev/null
+++ b/testsuite/tests/saks/should_fail/T16758.hs
@@ -0,0 +1,14 @@
+{-# LANGUAGE StandaloneKindSignatures #-}
+{-# LANGUAGE ConstrainedClassMethods #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE GADTs #-}
+{-# LANGUAGE PolyKinds #-}
+{-# LANGUAGE ExplicitForAll #-}
+
+module T16758 where
+
+import Data.Kind
+
+type C :: forall (a :: Type) -> a ~ Int => Constraint
+class C a where
+  f :: C a => a -> Int