[GHC] #9251: ghc does not expose branchless max/min operations as primops

GHC ghc-devs at haskell.org
Sun Jul 6 21:56:23 UTC 2014


#9251: ghc does not expose branchless 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
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #9246
-------------------------------------+------------------------------------

Comment (by carter):

 To clarify what I said:  both the perf and reproducible primops will be
 added and the one I'll pick for base will the reproducible/ portable one.

 We agree. Bring the worry to the code review once I've got a proposed
 patch. :-). I write tooling for both workloads, I'm well well well aware
 of reproducibility being valuable.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9251#comment:7>
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