[GHC] #8381: Simplifier ticks exhausted

[GHC]

#8381: Simplifier ticks exhausted
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       Reporter:  guest           |             Owner:
           Type:  bug             |            Status:  new
       Priority:  normal          |         Milestone:
      Component:  Compiler        |           Version:  7.6.3
       Keywords:                  |  Operating System:  MacOS X
   Architecture:  x86_64 (amd64)  |   Type of failure:  Compile-time crash
     Difficulty:  Unknown         |         Test Case:
     Blocked By:                  |          Blocking:
Related Tickets:                  |
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 Trying to build a (rather simple) project using '''cabal''' I get the
 following error message on a valid program:

 ghc: panic! (the 'impossible' happened)
   (GHC version 7.6.3 for i386-apple-darwin):
         Simplifier ticks exhausted
     When trying UnfoldingDone a_syQ{v} [lid]
     To increase the limit, use -fsimpl-tick-factor=N (default 100)
     If you need to do this, let GHC HQ know, and what factor you needed
     To see detailed counts use -ddump-simpl-stats
     Total ticks: 5080

 I tried to increase the limit without success.

 More oddly if I try to build directly the program using '''ghc''' (same
 version) it succeeds, therefore I suspect that cabal is somehow the source
 of my problem.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8381>
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