#9132: takeWhile&C. still not fusible -------------------------------------+------------------------------------- Reporter: Blaisorblade | Owner: skeuchel Type: bug | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 7.8.2 Resolution: | Keywords: fusion Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: Runtime | Difficulty: Moderate (less performance bug | than a day) Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- Comment (by nomeata): Great analysis. I think the change can go in nevertheless. Optimization is hardly ever a win in all cases, and I think the regression is just a random knock-on- effect that could well have been an improvement. Also, it is not takeWhile specific, but rather a problem with the list-fusion setup in general. I’d say we can merge this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9132#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler