#7994: Make foldl into a good consumer -------------------------------------+------------------------------------ Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by nomeata): Previously I said that my analysis makes no change in nofib if one does not also change `foldl` to use `foldr`. That is not true anymore with the latest code (but almost so), there are a few allocation improvemts, up to `-1.3%` (in `anna`, stemming from `take 30 [... | ...]`) – not a surprise, `take` is defined with a continuation passing `takeFB :: (a -> b -> b) -> b -> a -> (Int# -> b) -> Int# -> b`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7994#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler