[GHC] #1171: GHC generates incorrect code with -O for Haskell 98 program

[GHC]

#1171: GHC generates incorrect code with -O for Haskell 98 program
----------------------+-----------------------------------------------------
 Reporter:  neil      |          Owner:          
     Type:  bug       |         Status:  new     
 Priority:  high      |      Milestone:  6.6.1   
Component:  Compiler  |        Version:  6.6     
 Severity:  major     |     Resolution:          
 Keywords:            |     Difficulty:  Unknown 
 Testcase:            |   Architecture:  Multiple
       Os:  Multiple  |  
----------------------+-----------------------------------------------------
Changes (by simonmar):

  * milestone:  => 6.6.1
  * priority:  normal => high

Comment:

 wrong-code bugs are a high priority.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1171>
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