[GHC] #10137: Rewrite switch code generation

[GHC]

#10137: Rewrite switch code generation
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        Reporter:  nomeata           |                Owner:  nomeata
            Type:  task              |               Status:  closed
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.9
  (CodeGen)                          |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #9157, #8326,     |  Differential Rev(s):
  #8317, #9159                       |
       Wiki Page:                    |
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Comment (by nomeata):

 I don’t plan to look into this now, but whoever touches this code next and
 feels like improving the heuristics that decide whether to do a table or a
 binary search, see [ticket:9159#comment:5] for what the Java compiler
 does.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10137#comment:13>
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