[GHC] #15155: How untagged pointers sneak into banged fields

[GHC]

#15155: How untagged pointers sneak into banged fields
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        Reporter:  heisenbug         |                Owner:  heisenbug
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.10.1
       Component:  Compiler          |              Version:  8.4.2
      Resolution:                    |             Keywords:  CodeGen
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:  14677
 Related Tickets:  #13027 #7308      |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by heisenbug):

 I have a merge request:
 https://gitlab.haskell.org/ghc/ghc/merge_requests/10

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15155#comment:20>
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