[GHC] #8285: unexpected behavior with encodeFloat on large inputs

[GHC]

#8285: unexpected behavior with encodeFloat on large inputs
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        Reporter:  carter                       |            Owner:
            Type:  bug                          |           Status:  new
        Priority:  normal                       |        Milestone:  7.8.1
       Component:  Compiler                     |          Version:  7.7
      Resolution:                               |         Keywords:
Operating System:  Unknown/Multiple             |     Architecture:
 Type of failure:  Incorrect result at runtime  |  Unknown/Multiple
       Test Case:                               |       Difficulty:
        Blocking:                               |  Unknown
                                                |       Blocked By:
                                                |  Related Tickets:
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Comment (by carter):

 This seems like its worth fixing, if theres a reasonable solution. My
 understanding is the the current code just punts on handling these corner
 cases properly

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8285#comment:1>
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