#9251: ghc does not expose brancheless max/min operations as primops ------------------------------------+------------------------------------- Reporter: carter | Owner: carter Type: task | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.8.2 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9246 | ------------------------------------+------------------------------------- It was pointed out in #9246 that GHC currently does not expose primops for Max and Min on various unlifted types such as Float# and Double# and Int# and Word#, but that on most modern CPU architectures there is instruction level support for these operations. (Eg, Float# and #Double min and max can be provided on any 64bit x86 system pretty easily ) This ticket is to track doing that task. I'll probably do it one of the next two weekends to get back in the GHC hacking groove, or maybe this should be used as a "getting started" ticket for a new contributor? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9251 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler