[GHC] #12425: With -O1 and above causes ghc to use all available memory before being killed by OOM killer

[GHC]

#12425: With -O1 and above causes ghc to use all available memory before being
killed by OOM killer
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        Reporter:  erikd             |                Owner:
            Type:  bug               |               Status:  merge
        Priority:  high              |            Milestone:  8.0.3
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  Inlining
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Compile-time      |            Test Case:
  performance bug                    |  perf/compiler/T12425
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by uznx):

 Just for the record, this bug can be reproduced by compiling Hackage's
 find-conduit 0.4.4 with GHC 8.0.1.  find-conduit is the old version of
 conduit-find prior to a maintainer change, and prior to the workarounds to
 avoid this bug that have been incorporated into conduit-find.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12425#comment:19>
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