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-rw-r--r--testsuite/tests/simplCore/should_compile/T18231.hs7
1 files changed, 7 insertions, 0 deletions
diff --git a/testsuite/tests/simplCore/should_compile/T18231.hs b/testsuite/tests/simplCore/should_compile/T18231.hs
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index 0000000000..d9c6e0c93b
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+++ b/testsuite/tests/simplCore/should_compile/T18231.hs
@@ -0,0 +1,7 @@
+module T18231 where
+
+import Control.Monad (forever)
+import Control.Monad.Trans.State.Strict
+
+m :: State Int ()
+m = forever $ modify' (+1)