#12847: ghci -fobject-code -O2 doesn't do the same optimisations as ghc --make -O2 -------------------------------------+------------------------------------- Reporter: nh2 | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Other | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by nh2): Replying to [comment:1 rwbarton]:
you seem to be invoking `ghci` and then running `:set -fforce-recomp -fobject-code -O2 -v`
I am. Your guess seems right, if I start ghci on the command line with these flags, it's just as slow as ghc. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12847#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler