[GHC] #9391: LLVM 3.2 crash (AVX messes up GHC calling convention)

[GHC]

#9391: LLVM 3.2 crash (AVX messes up GHC calling convention)
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              Reporter:  scpmw       |            Owner:
                  Type:  bug         |           Status:  infoneeded
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.2
  (LLVM)                             |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:  MacOS X     |       Difficulty:  Easy (less than 1
       Type of failure:  Runtime     |  hour)
  crash                              |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
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Comment (by scpmw):

 My reasoning was that if the user explicitly requests AVX using `-mavx`,
 it makes sense not to override it. After all, it is a relatively uncommon
 bug, and there might be ways to work around it for a given module. I might
 be overthinking this...

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9391#comment:3>
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