[GHC] #5075: CPR optimisation for sum types if only one constructor is used

[GHC]

#5075: CPR optimisation for sum types if only one constructor is used
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              Reporter:              |            Owner:  simonpj
  batterseapower                     |           Status:  new
                  Type:  feature     |        Milestone:  7.10.1
  request                            |          Version:  7.0.3
              Priority:  normal      |         Keywords:
             Component:  Compiler    |     Architecture:  Unknown/Multiple
            Resolution:              |       Difficulty:  Unknown
      Operating System:              |       Blocked By:
  Unknown/Multiple                   |  Related Tickets:
       Type of failure:  Runtime     |
  performance bug                    |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by thomie):

 * failure:  None/Unknown => Runtime performance bug


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5075#comment:22>
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