[GHC] #11303: Pattern matching against sets of strings sharing a prefix blows up pattern checker

[GHC]

#11303: Pattern matching against sets of strings sharing a prefix blows up pattern
checker
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        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  7.11
      Resolution:                    |             Keywords:
                                     |  PatternMatchWarnings
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |            Test Case:  T11303
      Blocked By:                    |             Blocking:
 Related Tickets:  #11276, #11302    |  Differential Rev(s):  Phab:D1716,
       Wiki Page:                    |  Phab:D1719
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Changes (by simonpj):

 * keywords:   => PatternMatchWarnings
 * status:  closed => new
 * resolution:  fixed =>
 * milestone:  8.0.1 => 8.2.1


Comment:

 Re-opening because I think we can do better for 8.2.  But ok for 8.0.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11303#comment:20>
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