#9661: Branchless ==# is compiled to branchy code -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.9 Component: Compiler | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: Runtime | Related Tickets: performance bug | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by dfeuer): Replying to [comment:9 rwbarton]:
I don't understand what `bartonEq` or `feuerEq` is or what the difference between them is supposed to be. They look equal to me.
You're right. I got confused. Sorry. I still think we should have that `secretEq#` that acts the same as `==#` but without the `litEq` modification. I'm not the one to come up with a good justification—all I want it for at the moment is `isSpace`, whicn is not exactly a hotspot in most code. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9661#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler