[GHC] #1904: Strictness analyser should be smarter

[GHC]

#1904: Strictness analyser should be smarter
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    Reporter:  igloo             |       Owner:                  
        Type:  bug               |      Status:  new             
    Priority:  normal            |   Milestone:  _|_             
   Component:  Compiler          |     Version:  6.8.1           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Comment(by morabbin):

 Does the second approach above amount to:

   When we first encounter a case, calculate the demand placed on vars in
 the scrutinee, when evaluating the scrutinee. Use this information when
 analyzing the branches.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1904#comment:5>
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