[GHC] #10293: CallArity taking 20% of compile time

[GHC]

#10293: CallArity taking 20% of compile time
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        Reporter:  simonpj           |                   Owner:  nomeata
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by nomeata):

 Thanks for the report. I did test its impact on GHC and nofib, and ensured
 that it would run reasonably fast, but it’s not unlikely that there are
 classes of programs where it goes through the roof. I’ll have a look, but
 I’ll first have to catch up a post-vaction backlog.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10293#comment:2>
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