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-rw-r--r--compiler/GHC/Stg/BcPrep.hs3
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/GHC/Stg/BcPrep.hs b/compiler/GHC/Stg/BcPrep.hs
index c1fd67d484..d167a8c791 100644
--- a/compiler/GHC/Stg/BcPrep.hs
+++ b/compiler/GHC/Stg/BcPrep.hs
@@ -126,8 +126,7 @@ bcPrep us bnds = evalState (mapM bcPrepTopLvl bnds) (BcPrepM_State us)
-- Is this Id a not-necessarily-lifted join point?
-- See Note [Not-necessarily-lifted join points], step 1
isNNLJoinPoint :: Id -> Bool
-isNNLJoinPoint x = isJoinId x &&
- Just True /= isLiftedType_maybe (idType x)
+isNNLJoinPoint x = isJoinId x && mightBeUnliftedType (idType x)
-- Update an Id's type to take a Void# argument.
-- Precondition: the Id is a not-necessarily-lifted join point.