[GHC] #9675: Unreasonable memory usage on large data structures

[GHC]

#9675: Unreasonable memory usage on large data structures
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       Reporter:  Polarina           |                   Owner:
           Type:  bug                |                  Status:  new
       Priority:  normal             |               Milestone:
      Component:  Compiler           |                 Version:  7.8.3
       Keywords:                     |        Operating System:  Linux
   Architecture:  x86_64 (amd64)     |         Type of failure:  Compile-
     Difficulty:  Unknown            |  time performance bug
     Blocked By:                     |               Test Case:
Related Tickets:                     |                Blocking:
                                     |  Differential Revisions:
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 I have attached a file that, when compiled, results in very large amount
 of memory usage by GHC.

 The memory used is in the order of tens of gigabytes, but I've not been
 able to successfully compile the file due to lack of physical memory.

 This is on Debian GNU/Linux (Jessie) using Haskell Platform 2014.2.0.0
 with GHC 7.8.3.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9675>
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