[GHC] #8814: 7.8 optimizes attoparsec improperly

[GHC]

#8814: 7.8 optimizes attoparsec improperly
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              Reporter:  joelteon    |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.1-rc1
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  x86_64 (amd64)
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  Runtime     |       Blocked By:
  performance bug                    |  Related Tickets:  #8763
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by thomie):

 * os:  MacOS X => Unknown/Multiple


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8814#comment:19>
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