[GHC] #13719: checkFamInstConsistency dominates compile time

[GHC]

#13719: checkFamInstConsistency dominates compile time
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        Reporter:  niteria           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.3
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13092, #13099,   |  Differential Rev(s):
  #12191                             |
       Wiki Page:                    |
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Comment (by simonpj):

 That does seem terrible.  Thanks for continuing to investiate and explore
 solutions.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13719#comment:1>
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