[GHC] #7830: Error: operand out of range

[GHC]

#7830: Error: operand out of range
-------------------------------------+-------------------------------------
        Reporter:  erikd             |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  highest           |               Milestone:  8.0.1
       Component:  Compiler          |                 Version:  7.8.1-rc1
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:  powerpc
 Type of failure:  Installing GHC    |               Test Case:
  failed                             |
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by erikd):

 Looked through the git log to see if I could find possible breaking
 commits. The most obvious one was this:

 {{{
 commit d3c1dda60d0ec07fc7f593bfd83ec9457dfa7984
 Author: Peter Trommler <ptrommler at acm.org>
 Date:   Fri Jul 3 19:09:06 2015 +0200

 Implement PowerPC 64-bit native code backend for Linux
 }}}

 but this commit builds fine. Currently running a git bisect.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7830#comment:22>
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