[GHC] #7429: Unexplained performance boost with +RTS -h

[GHC]

#7429: Unexplained performance boost with +RTS -h
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    Reporter:  simonmar          |       Owner:                         
        Type:  bug               |      Status:  new                    
    Priority:  normal            |   Milestone:  7.8.1                  
   Component:  Compiler          |     Version:  7.6.1                  
    Keywords:                    |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple  |     Failure:  Runtime performance bug
  Difficulty:  Unknown           |    Testcase:                         
   Blockedby:                    |    Blocking:                         
     Related:                    |  
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Comment(by simonpj):

 Does `-fno-state-hack` make any difference?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7429#comment:4>
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