[GHC] #4267: Missing unboxing in pre-order fold over binary tree

[GHC]

#4267: Missing unboxing in pre-order fold over binary tree
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    Reporter:  tibbe             |       Owner:              
        Type:  bug               |      Status:  new         
    Priority:  normal            |   Component:  Compiler    
     Version:  6.13              |    Keywords:              
    Testcase:                    |   Blockedby:              
          Os:  Unknown/Multiple  |    Blocking:              
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown
---------------------------------+------------------------------------------
Changes (by tibbe):

  * version:  6.12.1 => 6.13


Comment:

 The problem is present in HEAD as well.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4267#comment:1>
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