[GHC] #11029: Performance loss due to eta expansion

[GHC]

#11029: Performance loss due to eta expansion
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        Reporter:  NeilMitchell      |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by nomeata):

 > Given the attached file, at both -O2 and -O0

 does this imply that it is not happening with `-O` (which I thought is the
 most common optimization level)?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11029#comment:2>
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