[GHC] #10433: Fix load/store barriers in pre-ARMv7 builds

[GHC]

#10433: Fix load/store barriers in pre-ARMv7 builds
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        Reporter:  thoughtpolice     |                   Owner:  rwbarton
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.12.1
       Component:  Runtime System    |                 Version:
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:  arm
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #10244            |  Differential Revisions:
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Changes (by thoughtpolice):

 * owner:  simonmar => rwbarton


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10433#comment:1>
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