[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:                    |
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * status:  new => merge
 * testcase:   => perf/compiler/T12425


Comment:

 I think I nailed this one, in HEAD at least.  Can you see if it fixes your
 original library?

 Probably worth merging this to 8.0.3 if we produce such a thing.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12425#comment:14>
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