[GHC] #1117: [2,4..10] is not a good list producer

[GHC]

#1117: [2,4..10] is not a good list producer
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 Reporter:  br1 at internet.com.uy  |          Owner:             
     Type:  feature request      |         Status:  new        
 Priority:  normal               |      Milestone:             
Component:  Compiler             |        Version:  6.6        
 Severity:  normal               |     Resolution:             
 Keywords:  rewrite rules        |     Difficulty:  Easy (1 hr)
 Testcase:                       |   Architecture:  Multiple   
       Os:  Multiple             |  
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Comment (by kirsten):

 Ah, yes, I wasn't looking at the instance for int. So, what kind of
 speedup do you get for your code if you do define your own efdtInt in
 terms of foldr/build?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1117>
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