[GHC] #7428: Occurrence analyzer out of memory

[GHC]

#7428: Occurrence analyzer out of memory
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Reporter:  nudded                        |          Owner:                
    Type:  bug                           |         Status:  new           
Priority:  normal                        |      Component:  Compiler      
 Version:  7.4.2                         |       Keywords:                
      Os:  MacOS X                       |   Architecture:  x86_64 (amd64)
 Failure:  Compile-time performance bug  |      Blockedby:                
Blocking:                                |        Related:                
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 When compiling the attached code with -O2 GHC runs out of memory.
 Experimenting with different monad stacks shows exponential memory usage.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7428>
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