[GHC] #9476: Implement late lambda-lifting

GHC ghc-devs at haskell.org
Fri Sep 7 08:49:02 UTC 2018


#9476: Implement late lambda-lifting
-------------------------------------+-------------------------------------
        Reporter:  simonpj           |                Owner:  sgraf
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.8.2
      Resolution:                    |             Keywords:  LateLamLift
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #8763 #13286      |  Differential Rev(s):
       Wiki Page:  LateLamLift       |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 > iii) Abstract (over-)saturated applications:

 I agree.  Let's do it.

 > vi> Use one-shot info:

 I took a quick look at Nick's code. It seemed to be to do with NOT
 floating a binding that looked like
 {{{
    f = \x[oneshot]. blah
 }}}
 I'm not sure why - and I think it'd irrelevant by the time we get to STG.
 So yes, ignore this.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9476#comment:31>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler


More information about the ghc-tickets mailing list