#2159: Use a more efficient representation than [DynFlag] -------------------------------------+------------------------------------- Reporter: igloo | Owner: Type: bug | Status: closed Priority: lowest | Milestone: Component: Compiler | Version: 6.8.2 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rwbarton): Heh, I was just looking at this too. I imagine a bit array representation as in "bitmap.dpatch" would be a lot faster though. Especially if you added RULES to inline the case of checking for a known flag. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/2159#comment:21 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler