[GHC] #7561: Unnecessary Heap Allocations - Slow Performance

[GHC]

#7561: Unnecessary Heap Allocations - Slow Performance
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    Reporter:  wurmli          |       Owner:                         
        Type:  bug             |      Status:  new                    
    Priority:  normal          |   Milestone:  7.8.1                  
   Component:  Compiler        |     Version:  7.6.1                  
    Keywords:                  |          Os:  Linux                  
Architecture:  x86_64 (amd64)  |     Failure:  Runtime performance bug
  Difficulty:  Unknown         |    Testcase:                         
   Blockedby:                  |    Blocking:                         
     Related:                  |  
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Comment(by shachaf):

 Ah, yes, `-fno-state-hack` fixes it. So it looks like it's the same issue
 as #1168.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7561#comment:9>
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