[GHC] #4978: Continuation passing style loop doesn't compile into a loop

[GHC]

#4978: Continuation passing style loop doesn't compile into a loop
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    Reporter:  tibbe             |        Owner:              
        Type:  bug               |       Status:  new         
    Priority:  normal            |    Milestone:  7.4.1       
   Component:  Compiler          |      Version:  7.0.1       
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
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Comment(by simonmar):

 We should look into why `$weta_s11K` isn't being inlined, it looks like it
 ought to be.  Perhaps `touch#` or the other primops don't look cheap
 enough to the simplifier?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4978#comment:15>
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