[GHC] #14346: 8.2.1 regression: heap corruption after safe foreign calls

[GHC]

#14346: 8.2.1 regression: heap corruption after safe foreign calls
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        Reporter:  andrewchen        |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.5
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime crash     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #15260            |  Differential Rev(s):  Phab:D5020
       Wiki Page:                    |
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Comment (by hsyl20):

 Thanks Ben. Could you also merge the test case from Phab:D5020 so that it
 doesn't get lost?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14346#comment:38>
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