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

[GHC]

#14677: Code generator does not correctly tag a pointer
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        Reporter:  simonpj           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:  CodeGen
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:  15155             |             Blocking:  14626
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 I'm getting a bit lost.

 * In ticket:15155#comment:11 we decided that we do NOT have the invariant
 that a strict constructor always has a correctly-tagged pointer in it.

 * An example of the difficulty is in ticket:15696#comment:36

 * Simon Marlow suggested one way to restore the invariant in
 ticket:15155#comment:17. But we have not implemented this.

 So doing this IND_STATIC stuff might reduce code size a tiny bit, but will
 not (of itself) change the situation for tagged pointers in strict
 constructors.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14677#comment:28>
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