[GHC] #14259: Worker/Wrapper for sum return

[GHC]

#14259: Worker/Wrapper for sum return
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        Reporter:  jheek             |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:  UnboxedSums
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12364            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by osa1):

 > osa1, perhaps you would care to say a few words about the status of
 these?

 Sure. CPR and worker/wrapper are easy to implement and I even have patches
 for these. (all of which should be up on phabricator)

 Demand analysis on the other hand is not that easy to extend
 (conceptually) and implement. We had some work on this too but we couldn't
 finish it (after several weeks of work) and these days I unfortunately
 don't have time & energy to work on this ;-(

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14259#comment:3>
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