[GHC] #10378: min/max for Double/Float instances are incorrect

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Mon May 4 18:03:54 UTC 2015


#10378: min/max for Double/Float instances are incorrect
-------------------------------------+-------------------------------------
        Reporter:  lerkok            |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by lerkok):

 @rwbarton: Ah, thanks for that pointer, I'm not sure if it's a true
 duplicate (I didn't see a discussion of +0/-0 in there); but the tickets
 are indeed related.

 Feel free to close/merge. I definitely agree that we need more discussion
 on this. Since the other one is closed, perhaps this one can stay.

 PS. I just found out that the min/max implementation in Intel CPU's
 actually do not follow the reference implementation I gave in the ticket
 precisely. I'll put a note in there. Something else to discuss on how to
 proceed.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10378#comment:5>
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