[GHC] #13873: Adding a SPECIALIZE at a callsite in Main.hs is causing a regression

[GHC]

#13873: Adding a SPECIALIZE at a callsite in Main.hs is causing a regression
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        Reporter:  jberryman         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.2.3
       Component:  Compiler          |              Version:  8.2.1-rc2
      Resolution:                    |             Keywords:  Specialise
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * milestone:  8.2.2 => 8.2.3


Comment:

 >  If you have conflicting specialisations then the choice about which one
 applies is left up to the rule selection mechanism which I am not as
 familiar with.

 Unfortunately this pretty much means that the choice comes down to chance
 (e.g. which rule happens to fire first).

 Regardless, this won't be fixed for 8.2.2. Bumping to 8.2.3.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13873#comment:9>
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