[GHC] #9346: AtomicPrimOps tests failing on 32-bit x86

[GHC]

#9346: AtomicPrimOps tests failing on 32-bit x86
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              Reporter:  niklasl     |            Owner:
                  Type:  bug         |           Status:  patch
              Priority:  highest     |        Milestone:
             Component:  Compiler    |          Version:  7.9
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by tibbe):

 Fixed by 23773b25863a0a439d81332cb8eee14f6f2c0098 and
 c11b35f5c5efe8f11039583c493e245bb6bcb33c. While we haven't seen any
 failure due to it, fc53ed5da1a2455b0da2f8ef3ec317e1a96ed83d fixes an issue
 with a missing memory fence for stores.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9346#comment:19>
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