[GHC] #5779: SPECIALISE pragma generates wrong activations

[GHC]

#5779: SPECIALISE pragma generates wrong activations
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  Reporter:  rl                       |          Owner:                  
      Type:  bug                      |         Status:  closed          
  Priority:  normal                   |      Milestone:                  
 Component:  Compiler                 |        Version:  7.5             
Resolution:  invalid                  |       Keywords:                  
        Os:  Unknown/Multiple         |   Architecture:  Unknown/Multiple
   Failure:  Runtime performance bug  |     Difficulty:  Unknown         
  Testcase:                           |      Blockedby:                  
  Blocking:                           |        Related:                  
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Comment(by simonpj):

 Because the common case is that you have
 {{{
 f x = e
 {-# SPECIALISE f :: Int -> Int #-}
 }}}
 Then you are saying "if f doesn't inline by itself, use the specialised
 version".  That's a perfectly reasonable thing to say.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5779#comment:6>
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