[GHC] #8974: 64 bit windows executable built with ghc-7.9.20140405+LLVM segfaults

[GHC]

#8974: 64 bit windows executable built with ghc-7.9.20140405+LLVM segfaults
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        Reporter:  awson             |                   Owner:
            Type:  bug               |                  Status:  infoneeded
        Priority:  high              |               Milestone:  7.12.1
       Component:  Compiler (LLVM)   |                 Version:  7.9
      Resolution:                    |                Keywords:
Operating System:  Windows           |            Architecture:  x86_64
 Type of failure:  Runtime crash     |  (amd64)
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by bgamari):

 Do we know exactly why Windows doesn't like 64-bit offsets? Presumably it
 has some support for this, no?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8974#comment:26>
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