[GHC] #13695: Highly nested UNPACKed data causes panic

[GHC]

#13695: Highly nested UNPACKed data causes panic
---------------------------------+----------------------------------------
        Reporter:  ryanreich     |                Owner:  (none)
            Type:  bug           |               Status:  new
        Priority:  high          |            Milestone:  8.2.1
       Component:  Compiler      |              Version:  8.2.1-rc2
      Resolution:                |             Keywords:
Operating System:  Linux         |         Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:  #3990         |  Differential Rev(s):
       Wiki Page:                |
---------------------------------+----------------------------------------
Changes (by dfeuer):

 * cc: ezyang (added)


Comment:

 It looks like ezyang was the last one to work in this general area; he may
 not be responsible, but it seems somewhat likely that he may still
 remember something about how this code works.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13695#comment:8>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler