#8814: 7.8 optimizes attoparsec improperly --------------------------------------------+------------------------------ Reporter: joelteon | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.1-rc1 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 Type of failure: Runtime performance bug | (amd64) Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: #8763 --------------------------------------------+------------------------------ Comment (by bos): I wrote a [https://github.com/bos/attoparsec/commit/b9a21b8e265949ec2d9541409b0a252aad3... workaround for this problem] that makes this particular performance regression vanish. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8814#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler