[GHC] #9661: Branchless ==# is compiled to branchy code

[GHC]

#9661: Branchless ==# is compiled to branchy code
-------------------------------------+-------------------------------------
              Reporter:  dfeuer      |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.9
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  Runtime     |       Blocked By:
  performance bug                    |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------

Comment (by jstolarek):

 No, I think that `litEq` rule is independent from #8317. Band-aid for
 `tagToEnum#` is somewhere else, so this ticket should be fixed
 independently.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9661#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler