[GHC] #1600: Optimisation: CPR the results of IO

[GHC]

#1600: Optimisation: CPR the results of IO
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    Reporter:  simonmar                    |       Owner:                         
        Type:  task                        |      Status:  new                    
    Priority:  lowest                      |   Milestone:  7.6.2                  
   Component:  Compiler                    |     Version:  6.6.1                  
    Keywords:                              |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple            |     Failure:  Runtime performance bug
  Difficulty:  Moderate (less than a day)  |    Testcase:                         
   Blockedby:                              |    Blocking:                         
     Related:                              |  
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Comment(by morabbin):

 Time to revisit this optimization.

 Is this more of feature request though?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1600#comment:15>
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