[GHC] #13966: Skip-less stream fusion: a missed opportunity

GHC ghc-devs at haskell.org
Tue Aug 1 07:30:55 UTC 2017


#13966: Skip-less stream fusion: a missed opportunity
-------------------------------------+-------------------------------------
        Reporter:  jmspiewak         |                Owner:  mpickering
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1-rc3
      Resolution:                    |             Keywords:  JoinPoints,
                                     |  StaticArgumentTransformation
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14067 #14068     |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Yes, two tasks.  Of these, the most important is the first #14068.

 The second SAT part is worthwhile, I think, but this particular ticket
 doesn't really show why.  The point is that while SAT is ''sometimes''
 good for normal definitions, I think it's probably ''always'' good (or at
 least not harmful) for `joinrecs`.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13966#comment:14>
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