[GHC] #11770: Demand analysis: Wrong one-shot annotation due to fixed-point iteration

[GHC]

#11770: Demand analysis: Wrong one-shot annotation due to fixed-point iteration
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        Reporter:  nomeata           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2070
       Wiki Page:                    |
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Comment (by nomeata):

 TODO: Calculate called-once-demend on the wrapper in `splitFun`, and get
 rid of `oneShot` annotation calculation in `mkWwBodies`. Might fix the
 performance regressions.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11770#comment:11>
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