[GHC] #1875: Compiling with -O is 30 times slower than with -Onot

[GHC]

#1875: Compiling with -O is 30 times slower than with -Onot
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 Reporter:  simonpj                       |          Owner:         
     Type:  compile-time performance bug  |         Status:  new    
 Priority:  normal                        |      Milestone:  6.10.1 
Component:  Compiler                      |        Version:  6.8.1  
 Severity:  normal                        |     Resolution:         
 Keywords:  performance                   |     Difficulty:  Unknown
 Testcase:                                |   Architecture:  Unknown
       Os:  Unknown                       |  
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Changes (by igloo):

  * milestone:  6.8.3 => 6.10.1

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1875#comment:4>
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