[GHC] #13543: Improve demand analysis for join points

[GHC]

#13543: Improve demand analysis for join points
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        Reporter:  simonpj           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  JoinPoints
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"b5b7d820afd8fca098bf1f4a7380d425ca6be31d/ghc" b5b7d82/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="b5b7d820afd8fca098bf1f4a7380d425ca6be31d"
 Improve demand analysis for join points

 I realised (Trac #13543) that we can improve demand analysis for
 join point quite straightforwardly.

 The idea is explained in
     Note [Demand analysis for join points]
 in DmdAnal
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13543#comment:2>
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