[GHC] #7428: GHC compile times are seriously non-linear in program size

GHC ghc-devs at haskell.org
Tue Jun 16 14:37:34 UTC 2015


#7428: GHC compile times are seriously non-linear in program size
-------------------------------------+-------------------------------------
        Reporter:  nudded            |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.4.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by simonpj):

 See [http://research.microsoft.com/en-
 us/um/people/simonpj/papers/variant-f/index.htm Scrap your type
 applications] Section 2.3, for why types can (legitimately I fear) blow
 up.  I'm not say that is what is happening here, but it might be similar.

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7428#comment:21>
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