[GHC] #7450: Regression in optimisation time of functions with many patterns (6.12 to 7.4)?

[GHC]

#7450: Regression in optimisation time of functions with many patterns (6.12 to
7.4)?
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        Reporter:  iustin            |                Owner:  bgamari
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.6.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1012
       Wiki Page:                    |
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Comment (by bgamari):

 Judging by the summary in ticket:9669#comment:13 there still may be some
 non-linear behavior here. I need to look further into this.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7450#comment:28>
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