#9434: GHC.List.reverse does not fuse -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: patch Priority: normal | Milestone: Component: | Version: 7.9 libraries/base | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Easy (less than 1 Unknown/Multiple | hour) Type of failure: Runtime | Blocked By: performance bug | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by dfeuer): * status: new => patch Comment: The nofib results look generally good, if I'm reading them right. It appears that with regard to allocations, the biggest benefits are to kahan (-7.8%), gamteb (-4.1%), and scs (-1.4%). The loser, for some reason, seems to be constraints (+3.6%). I don't have much faith in my (good- looking) timing measurements—the results look ... very wonky. I'm hoping maybe someone who's better at such things can try to measure those properly. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9434#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler