[GHC] #10571: GHC 7.10.1 segfaults when shiftL-ing Integers by negative amounts

[GHC]

#10571: GHC 7.10.1 segfaults when shiftL-ing Integers by negative amounts
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        Reporter:  anders_           |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  MacOS X           |            Architecture:  x86_64
 Type of failure:  Runtime crash     |  (amd64)
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by rwbarton):

 Might not be possible inside integer-gmp for dependency reasons (`error`
 is defined in base which depends on integer-gmp) but certainly possible in
 the instance in Data.Bits. Having `shiftLInteger` itself crash on negative
 shifts is fine IMHO as it's not intended for end-user use.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10571#comment:7>
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