[GHC] #14414: Profiled program runs 2.5x faster than non-profiled

[GHC]

#14414: Profiled program runs 2.5x faster than non-profiled
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        Reporter:  Fuuzetsu          |                Owner:  (none)
            Type:  bug               |               Status:  infoneeded
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      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 Fuuzetsu):

 I believe I was on NixOS, IIRC Intel i7 6700k CPU on 8.2. That machine is
 on another continent and I won't be able to retry the experiment... If
 someone can confirm the bug doesn't occur on Linux with modern GHC, I'm
 happy for the ticket to be closed.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14414#comment:12>
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