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

[GHC]

#9251: ghc does not expose branchless max/min operations as primops
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        Reporter:  carter            |                Owner:  osa1
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.8.2
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #9246             |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 I believe it is just waiting for someone to come along with a patch. Feel
 free to finish up osa1's patch.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9251#comment:20>
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