[GHC] #9279: Optimisation bug

[GHC]

#9279: Optimisation bug
-------------------------------------+-------------------------------------
              Reporter:  simonmar    |             Owner:  simonpj
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:  Compiler    |           Version:  7.8.2
            Resolution:              |          Keywords:
Differential Revisions:              |  Operating System:  Unknown/Multiple
          Architecture:              |   Type of failure:  Runtime
  Unknown/Multiple                   |  performance bug
            Difficulty:  Unknown     |         Test Case:
            Blocked By:              |          Blocking:
       Related Tickets:              |
-------------------------------------+-------------------------------------

Comment (by simonmar):

 You also need to install `aeson`, `unordered-containers`, `stm` and `text`
 (I think those should be enough).

 I've collected the log you asked for, it's too big to attach here so I've
 put it at [http://community.haskell.org/~simonmar/log.bz2].

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9279#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler