[GHC] #9630: compile-time performance regression (probably due to Generics)

[GHC]

#9630: compile-time performance regression (probably due to Generics)
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              Reporter:  hvr         |            Owner:  simonpj
                  Type:  bug         |           Status:  new
              Priority:  high        |        Milestone:  7.10.1
             Component:  Compiler    |          Version:  7.9
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  Compile-    |       Blocked By:
  time performance bug               |  Related Tickets:  #9583
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by simonpj):

 I'm happy to support, but I currently believe that this isn't a GHC
 shortcoming.  I'm willing to revise that view if evidence emerges!  A good
 starting point might be the amount of code generated by Edward's example
 in comment 5 of #9583

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9630#comment:5>
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