[GHC] #8941: Module that causes GHC-7.8 to exhaust memory when compiled with -O2

[GHC]

#8941: Module that causes GHC-7.8 to exhaust memory when compiled with -O2
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        Reporter:  guest         |            Owner:
            Type:  bug           |           Status:  new
        Priority:  normal        |        Milestone:
       Component:  Compiler      |          Version:  7.8.1-rc2
      Resolution:                |         Keywords:
Operating System:  Linux         |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown  |       Difficulty:  Unknown
       Test Case:                |       Blocked By:
        Blocking:                |  Related Tickets:
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Comment (by bjp):

 I had a similar problem one month ago and believe that it is caused by
 https://ghc.haskell.org/trac/ghc/ticket/7068 in my case.

 I temporarily fixed it by adding a `-fno-spec-constr` option, maybe you
 want to try that as well?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8941#comment:4>
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