[GHC] #13379: Space leak / quadratic behavior when inlining

[GHC]

#13379: Space leak / quadratic behavior when inlining
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        Reporter:  jberryman         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by dfeuer):

 I'm not too surprised this is a difficult case. `>>` is `infixl`. So we
 start with `(((f bs >> f b) >> f bs) >> f bs) >> f bs` and we end up
 (eventually) re-associating everything the other way. How did an example
 like this arise in practice?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13379#comment:2>
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