[GHC] #915: Implement list fusion using streams instead of foldr/build

[GHC]

#915: Implement list fusion using streams instead of foldr/build
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        Reporter:  simonpj           |                Owner:  (none)
            Type:  task              |               Status:  closed
        Priority:  normal            |            Milestone:  7.6.1
       Component:  libraries/base    |              Version:  6.8
      Resolution:  invalid           |             Keywords:  fusion
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:  N/A
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by sgraf):

 Replying to [comment:50 simonpj]:
 > >  if we would employ some other mechanism than rewrite rules to
 specialise call sites
 >
 > I don't know what you have in mind here.  Would you care to elaborate?

 Right, that's quite a bummer. I'll probably have to develop a deeper
 understanding of how `SpecConstr` and the rewrite rule mechanism works
 before I can answer this.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/915#comment:51>
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