[GHC] #4062: Bad choice of loop breaker?

[GHC]

#4062: Bad choice of loop breaker?
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    Reporter:  rl                |        Owner:                         
        Type:  bug               |       Status:  new                    
    Priority:  normal            |    Milestone:                         
   Component:  Compiler          |      Version:  6.13                   
    Keywords:                    |   Difficulty:                         
          Os:  Unknown/Multiple  |     Testcase:                         
Architecture:  Unknown/Multiple  |      Failure:  Runtime performance bug
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Comment(by simonpj):

 Roman, I think you've added `splitD_impl` to the repo, so I can't
 reproduce the problem any more.

 Simon

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4062#comment:1>
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