[GHC] #15696: Derived Ord instance for enumerations with more than 8 elements seems to be incorrect

[GHC]

#15696: Derived Ord instance for enumerations with more than 8 elements seems to be
incorrect
-------------------------------------+-------------------------------------
        Reporter:  mrkkrp            |                Owner:  osa1
            Type:  bug               |               Status:  patch
        Priority:  highest           |            Milestone:  8.6.2
       Component:  Compiler          |              Version:  8.6.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14677, #15155    |  Differential Rev(s):  Phab:D5196,
       Wiki Page:                    |  Phab:D5201
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Comment (by osa1):

 Thanks Simon,

 Re 1, the primop is already marked as strict:

 {{{
    strictness = { \ _arity -> mkClosedStrictSig [evalDmd] topRes }
 }}}

 Re 2, I already removed the bang pattern in Phab:D5201. I think you need a
 git pull.

 Re 3, both (1) and (2) are already done so this should've worked?

 I'll implement 4 and update.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15696#comment:74>
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