[GHC] #9646: Strange performance bug

[GHC]

#9646: Strange performance bug
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              Reporter:  erikd       |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.3
            Resolution:              |         Keywords:
      Operating System:  Linux       |     Architecture:  x86_64 (amd64)
       Type of failure:  Runtime     |       Difficulty:  Unknown
  performance bug                    |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
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Comment (by erikd):

 @jstolarek : No, my Makefile does not recognize cabal sandboxes.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9646#comment:5>
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