[GHC] #9314: Huge space leak of GHC API 7.8.x

[GHC]

#9314: Huge space leak of GHC API 7.8.x
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        Reporter:  kazu-yamamoto     |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  GHC API           |          Version:  7.8.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  Other             |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by simonpj):

 -O2 adds `SpecConstr`, a notorious source of blow-up.  Try switching it
 off with `-fno-spec-constr`.

 The `SpecConstr` blow-up needs love and attention, and I keep being too
 distracted.  Help most welcome. I don't think it's fundamental.

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9314#comment:4>
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