[GHC] #8909: ppc dyn executable compiled with ghc-7.8.1 RC2 segfaults

[GHC]

#8909: ppc dyn executable compiled with ghc-7.8.1 RC2 segfaults
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              Reporter:  juhpetersen       |            Owner:
                  Type:  bug               |           Status:  new
              Priority:  normal            |        Milestone:
             Component:  Compiler          |          Version:  7.8.1-rc2
            Resolution:                    |         Keywords:
      Operating System:  Unknown/Multiple  |     Architecture:  powerpc
       Type of failure:  Runtime crash     |       Difficulty:  Unknown
             Test Case:                    |       Blocked By:
              Blocking:                    |  Related Tickets:
Differential Revisions:                    |
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Comment (by slyfox):

 I think it's a manifestation of #8024 (and #8857).

 Can you try to apply a patch on top of 7.8.3 from
     https://phabricator.haskell.org/D177
 (or just try -HEAD) and see if it helps?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8909#comment:2>
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