[GHC] #12967: GHC 8.0.1 Panic for current Aeson 1.0.2.1

GHC ghc-devs at haskell.org
Tue Dec 13 02:03:07 UTC 2016


#12967: GHC 8.0.1 Panic for current Aeson 1.0.2.1
-------------------------------------+-------------------------------------
           Reporter:  bitemyapp      |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 {{{
     [1 of 1] Compiling Main             ( Dates.hs, .stack-
 work/dist/x86_64-linux/Cabal-1.24.0.0/build/aeson-benchmark-dates/aeson-
 benchmark-dates-tmp/Main.o )
     ghc: panic! (the 'impossible' happened)
       (GHC version 8.0.1 for x86_64-unknown-linux):
         Simplifier ticks exhausted
       When trying UnfoldingDone $s>$<
       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: 153200
 }}}

 I am not certain if this is a duplicate of:

 - https://ghc.haskell.org/trac/ghc/ticket/10083

 - https://ghc.haskell.org/trac/ghc/ticket/12789

 - https://ghc.haskell.org/trac/ghc/ticket/11263

 - https://ghc.haskell.org/trac/ghc/ticket/5539

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12967>
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