[GHC] #8632: ghc: panic! (the 'impossible' happened)
GHC
ghc-devs at haskell.org
Fri Dec 27 04:45:50 UTC 2013
#8632: ghc: panic! (the 'impossible' happened)
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Reporter: jdoliner | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.4.1
Keywords: | Operating System: Unknown/Multiple
Architecture: x86_64 (amd64) | Type of failure: Compile-time crash
Difficulty: Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: |
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I got this message when trying to compile. It appears to be reproducible.
Also I realize this is an outdate version of GHC so I'm going to update
and see if it fixes itself.
(GHC version 7.4.1 for x86_64-unknown-linux):
compiler/rename/RnSource.lhs:429:14-81: Irrefutable pattern failed
for pattern Data.Maybe.Just (inst_tyvars,
_,
SrcLoc.L _ cls,
_)
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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8632>
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