[GHC] #9476: Implement late lambda-lifting

[GHC]

#9476: Implement late lambda-lifting
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       Reporter:  simonpj            |                   Owner:
           Type:  feature request    |                  Status:  new
       Priority:  normal             |               Milestone:
      Component:  Compiler           |                 Version:  7.8.2
       Keywords:                     |        Operating System:
   Architecture:  Unknown/Multiple   |  Unknown/Multiple
     Difficulty:  Unknown            |         Type of failure:
     Blocked By:                     |  None/Unknown
Related Tickets:                     |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:
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 This ticket exists to coordinate work on Nick Frisby's '''late lambda-
 lifting''' optimisation.

  * Wiki page: [wiki:LateLamLift].  All the details are here.

  * Branch in GHC repo: `wip/llf`

  * Related tickets
    * #9279: local closure remains in final program
    * #9374: static argument transformation

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9476>
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