[GHC] #9872: Runing type functions is too slow

[GHC]

#9872: Runing type functions is too slow
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        Reporter:  simonpj           |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.3
      Resolution:  fixed             |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by ezyang):

 See also #9960

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9872#comment:32>
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