[GHC] #14677: Code generator does not correctly tag a pointer

[GHC]

#14677: Code generator does not correctly tag a pointer
-------------------------------------+-------------------------------------
        Reporter:  simonpj           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:  14626
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 Could you possibly give the example that goes wrong, in source code, tidy-
 core, and the wrong Cmm we get?  That would be easier to discuss.  I can't
 make sense of your question without a bit more context.  Thanks!

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14677#comment:13>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler