[GHC] #8834: 64-bit windows cabal.exe segfaults in GC

[GHC]

#8834: 64-bit windows cabal.exe segfaults in GC
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        Reporter:  awson          |            Owner:  jstolarek
            Type:  bug            |           Status:  patch
        Priority:  highest        |        Milestone:  7.8.1
       Component:  Compiler       |          Version:  7.8.1-rc2
      Resolution:                 |         Keywords:
Operating System:  Windows        |     Architecture:  x86_64 (amd64)
 Type of failure:  Runtime crash  |       Difficulty:  Unknown
       Test Case:                 |       Blocked By:
        Blocking:                 |  Related Tickets:
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"a79613a75c7da0d3d225850382f0f578a07113b5/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="a79613a75c7da0d3d225850382f0f578a07113b5"
 Revert ad15c2, which causes Windows seg-faults (Trac #8834)

 We don't yet understand WHY commit ad15c2, which is to do with
 CmmSink, causes seg-faults on Windows, but it certainly seems to.  So
 reverting it is a stop-gap, but we need to un-block the 7.8 release.

 Many thanks to awson for identifying the offending commit.
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8834#comment:49>
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