[GHC] #14035: Weird performance results.

[GHC]

#14035: Weird performance results.
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        Reporter:  danilo2           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 > When provided with 10^6 characters this code works in 1ms

 Can you provide test data. How do I run the program?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14035#comment:6>
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