[GHC] #5302: Unused arguments in join points

[GHC]

#5302: Unused arguments in join points
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    Reporter:  reinerp           |       Owner:  simonpj                
        Type:  bug               |      Status:  new                    
    Priority:  low               |   Milestone:  7.6.2                  
   Component:  Compiler          |     Version:  7.0.3                  
    Keywords:                    |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple  |     Failure:  Runtime performance bug
  Difficulty:                    |    Testcase:                         
   Blockedby:                    |    Blocking:                         
     Related:                    |  
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Comment(by nfrisby):

 As of 321941a, this test case (at less the _full.hs one) still generates
 the unused arguments. In fact, the join point under discussion also
 contains a join point with the same flaw. This happens with and without a
 SpecConstr.

 In both cases, a late demand analysis removes both unnecessary arguments.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5302#comment:7>
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