[GHC] #8590: Reduce code size of CAFs

GHC ghc-devs at haskell.org
Fri Dec 6 10:02:03 UTC 2013


#8590: Reduce code size of CAFs
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        Reporter:  parcs             |            Owner:  parcs
            Type:  feature request   |           Status:  closed
        Priority:  normal            |        Milestone:
       Component:  Compiler (NCG)    |          Version:  7.7
      Resolution:  fixed             |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by simonmar):

 I think it's a good idea, and it's great that you're finding ways to
 squeeze the code size.  Keep at it! :)

 > jump (%ENTRY_CODE(info)) ()

 I think you'll want that to be

 {{{
   jump (%ENTRY_CODE(info)) (node)
 }}}

 One other thing you'll need to look at is reverting CAFs, which will need
 to put the `stg_CAF_info` back, rather than the saved info pointer.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8590#comment:16>
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