[GHC] #4941: SpecConstr generates functions that do not use their arguments

[GHC]

#4941: SpecConstr generates functions that do not use their arguments
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    Reporter:  simonpj           |        Owner:                         
        Type:  task              |       Status:  new                    
    Priority:  normal            |    Milestone:  _|_                    
   Component:  Compiler          |      Version:  7.0.1                  
    Keywords:                    |     Testcase:                         
   Blockedby:                    |   Difficulty:                         
          Os:  Unknown/Multiple  |     Blocking:                         
Architecture:  Unknown/Multiple  |      Failure:  Runtime performance bug
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Comment(by simonpj):

 I've made a new ticket #4957 for the "excessive boxing" point, leaving
 this ticket to address its original purpose, namely the question of absent
 parameters.

 Simon

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4941#comment:7>
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