[GHC] #7460: Double literals generated bad core

[GHC]

#7460: Double literals generated bad core
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    Reporter:  tibbe             |       Owner:                         
        Type:  bug               |      Status:  new                    
    Priority:  normal            |   Milestone:                         
   Component:  Compiler          |     Version:  7.4.2                  
    Keywords:                    |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple  |     Failure:  Runtime performance bug
  Difficulty:  Unknown           |    Testcase:                         
   Blockedby:                    |    Blocking:                         
     Related:                    |  
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Comment(by tibbe):

 Simon, I don't think we need new primitives, as this is a regression and
 hence it used to work without extra primitives. I'm not quite sure why it
 regressed. Perhaps it's due to some refactoring that touches inling. Ian,
 do you have any idea why this regressed?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7460#comment:6>
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