[GHC] #9342: Branchless arithmetic operations

[GHC]

#9342: Branchless arithmetic operations
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        Reporter:  hvr               |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.8.3
  (CodeGen)                          |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
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Comment (by tibbe):

 As a data point the hashtables package makes effective use of branchless
 code in practice:
 https://github.com/gregorycollins/hashtables/search?utf8=%E2%9C%93&q=branchless

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9342#comment:7>
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