[GHC] #5623: GHC 7.2.1 Performance Regression: Vector

[GHC]

#5623: GHC 7.2.1 Performance Regression: Vector
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    Reporter:  dterei            |        Owner:  simonpj                
        Type:  bug               |       Status:  new                    
    Priority:  high              |    Milestone:  7.4.1                  
   Component:  Compiler          |      Version:  7.3                    
    Keywords:                    |     Testcase:                         
   Blockedby:                    |   Difficulty:                         
          Os:  Unknown/Multiple  |     Blocking:                         
Architecture:  Unknown/Multiple  |      Failure:  Runtime performance bug
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Comment(by simonmar):

 Probably a result of the tuning we did to make primops look cheaper (see
 #4978), though we shouldn't be just duplicating them willy-nilly.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5623#comment:5>
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