[GHC] #13996: Non-cheap primop is duplicated

[GHC]

#13996: Non-cheap primop is duplicated
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        Reporter:  simonpj           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by conal):

 Thanks for the explanation, Simon. The eta-expansion policy sounds very
 sensible to me, and now I understand that more expensive computations will
 not get pushed under lambdas. If GHC's cost model turns out not to fit my
 use, I can add some simple post-GHC transformations on the representation
 I use for generating GPU code.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13996#comment:3>
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