[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
-------------------------------------+-------------------------------------
        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 RyanGlScott):

 Sorry erikd, several of those dependencies not building on GHC HEAD were
 probably my fault. After adjusting some `template-haskell` upper version
 bounds on dependent packages on Hackage, I was able to successfully
 install `conduit-find` with GHC HEAD, and I did not observe any noticeable
 slowness.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12425#comment:17>
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