[GHC] #701: Better CSE optimisation

[GHC]

#701: Better CSE optimisation
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    Reporter:  simonmar          |        Owner:                    
        Type:  task              |       Status:  new               
    Priority:  normal            |    Milestone:  _|_               
   Component:  Compiler          |      Version:  6.4.1             
    Severity:  normal            |   Resolution:                    
    Keywords:                    |   Difficulty:  Difficult (1 week)
    Testcase:  N/A               |           Os:  Unknown/Multiple  
Architecture:  Unknown/Multiple  |  
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Changes (by PHO):

 * cc: pho at cielonegro.org (added)

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/701#comment:6>
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