[GHC] #10129: emitCmmLitSwitch could be better

[GHC]

#10129: emitCmmLitSwitch could be better
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        Reporter:  nomeata           |                   Owner:
            Type:  task              |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
  (CodeGen)                          |                Keywords:
      Resolution:  fixed             |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  Runtime           |               Test Case:
  performance bug                    |                Blocking:
      Blocked By:                    |  Differential Revisions:  Phab:D693
 Related Tickets:                    |
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Comment (by nomeata):

 I thought about this, but I’m really not sure how to do it. The best thing
 I could think of would be to grep on the output of -ddump-cmm, but that
 seems too fragile.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10129#comment:6>
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