[GHC] #11276: GHC hangs/takes an exponential amount of time with simple program

[GHC]

#11276: GHC hangs/takes an exponential amount of time with simple program
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        Reporter:  mpickering        |                Owner:  gkaracha
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.10.3
      Resolution:                    |             Keywords:  pattern
                                     |  checker, PatternMatchWarnings
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 gkaracha):

 Replying to [comment:16 simonpj]:
 > Does Phab:D1795 fix this?

 Yes, it does. The current limits are:
 {{{
 test('T11276', compile_timeout_multiplier(0.01), compile, ['-fwarn-
 incomplete-patterns -fwarn-overlapping-patterns +RTS -M1G -RTS'])
 }}}
 and it passes.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11276#comment:17>
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