[GHC] #14461: Reuse free variable lists through nested closures

[GHC]

#14461: Reuse free variable lists through nested closures
-------------------------------------+-------------------------------------
        Reporter:  tdammers          |                Owner:  alexbiehl
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  7258              |  Differential Rev(s):
       Wiki Page:  NestedClosures    |
-------------------------------------+-------------------------------------

Comment (by alexbiehl):

 Replying to [comment:6 simonpj]:
 > I'm beginning to think that it might be easier to do this free-var-
 finding stuff as a STG-to-STG pass with a single purpose, rather than as
 part of Core-to-STG.

 Seems reasonable. I will take that in consideration.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14461#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler