[GHC] #9276: audit ghc floating point support for IEEE (non)compliance

[GHC]

#9276: audit ghc floating point support for IEEE (non)compliance
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        Reporter:  carter            |            Owner:  carter
            Type:  task              |           Status:  new
        Priority:  high              |        Milestone:  7.10.1
       Component:  Compiler          |          Version:  7.8.2
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by augustss):

 You can check if the host and the target have the same kind of FP (easy if
 host==target) and only constant fold under that condition.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9276#comment:2>
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