[GHC] #10639: Tight (non-allocating) loop freezes the scheduler

[GHC]

#10639: Tight (non-allocating) loop freezes the scheduler
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        Reporter:  gizmo.mk0         |                   Owner:
            Type:  bug               |                  Status:  patch
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Windows           |            Architecture:  x86_64
 Type of failure:  Incorrect result  |  (amd64)
  at runtime                         |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D1127
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Changes (by bgamari):

 * differential:   => Phab:D1127


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10639#comment:7>
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