[GHC] #8860: Optimized Cmm isn't

[GHC]

#8860: Optimized Cmm isn't
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        Reporter:  tibbe             |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by simonmar):

 Are you sure you were compiling with -O?  I don't see the output of
 `CmmSink` here, which is where most optimisations are performed.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8860#comment:4>
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