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-rw-r--r--testsuite/tests/simplCore/should_compile/T18399.hs5
1 files changed, 5 insertions, 0 deletions
diff --git a/testsuite/tests/simplCore/should_compile/T18399.hs b/testsuite/tests/simplCore/should_compile/T18399.hs
new file mode 100644
index 0000000000..68fb2608d4
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+++ b/testsuite/tests/simplCore/should_compile/T18399.hs
@@ -0,0 +1,5 @@
+module Bug where
+
+f :: p b d -> (a -> b) -> (c -> d) -> p a c -> p b d
+{-# INLINE f #-}
+f = const . const . const