#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: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: new => closed * resolution: => fixed Comment: Unless I am mistaken this has already been implemented. `DynFlags` now represents dump flags, extension flags, and general flags as `IntSet`s, using the `Enum` instances of the respective types to map each flag to a bit. I'm not entirely sure when this change was made but it was quite a while ago. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/2159#comment:20 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler