[GHC] #2609: Compiling with -O2 is 7x slower than -O

[GHC]

#2609: Compiling with -O2 is 7x slower than -O
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 Reporter:  simonpj                       |          Owner:             
     Type:  compile-time performance bug  |         Status:  new        
 Priority:  normal                        |      Milestone:  6.12 branch
Component:  Compiler                      |        Version:  6.8.3      
 Severity:  normal                        |     Resolution:             
 Keywords:                                |     Difficulty:  Unknown    
 Testcase:                                |   Architecture:  Unknown    
       Os:  Unknown                       |  
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Changes (by igloo):

  * milestone:  => 6.12 branch

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2609#comment:2>
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