2008/6/7 Conal Elliott <[EMAIL PROTECTED]>: > I'm trying to do some fusion in ghc, and I'd greatly appreciate help with > the code below (which is simplified from fusion on linear maps). I've tried > every variation I can think of, and always something prevents the fusion. > > [snip] > > {-# INLINE onInt #-} > onInt :: AsInt a => (Int -> Int) -> (a -> a) > onInt f = fromInt . f . toInt
I don't know if this will help but add this to prevent GHC from inlining the definition of fromInt (or toInt) in the first phase: {-# NOINLINE [1] fromInt #-} {-# INLINE [2] fromInt #-} It might be possible to combine the both into one pragma but I don't know how. -- Johan _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users