[GHC] #5433: Compiler generates invalid assembly with "bad register name"

[GHC]

#5433: Compiler generates invalid assembly with "bad register name"
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    Reporter:  bos               |        Owner:  simonmar          
        Type:  bug               |       Status:  new               
    Priority:  highest           |    Milestone:  7.4.1             
   Component:  Compiler          |      Version:  7.2.1             
    Keywords:                    |     Testcase:                    
   Blockedby:                    |   Difficulty:                    
          Os:  Unknown/Multiple  |     Blocking:                    
Architecture:  x86               |      Failure:  Compile-time crash
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Changes (by simonpj):

  * owner:  simonpj => simonmar


Comment:

 Simon M is going to look for a test case; the issue is that we had a case
 expression whose case-binder was dead, but whose scrutinee was used in the
 RHS.  That doesn't usually happen, because of the binder-swap stuff, and
 we were curious why not.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5433#comment:6>
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