[GHC] #7574: Register allocator chokes on certain branches with literals

[GHC]

#7574: Register allocator chokes on certain branches with literals
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Reporter:  thoughtpolice     |          Owner:                  
    Type:  bug               |         Status:  new             
Priority:  normal            |      Component:  Compiler        
 Version:  7.6.1             |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  None/Unknown      |      Blockedby:                  
Blocking:                    |        Related:  #7571           
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Changes (by thoughtpolice):

  * related:  #7571, #7573 => #7571


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7574#comment:2>
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