#7538: Panic on Irrefutable Pattern Failure
--------------------------+-------------------------------------------------
Reporter: eli_sennesh | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.4.2 | Keywords:
Os: Linux | Architecture: x86_64 (amd64)
Failure: Runtime crash | Blockedby:
Blocking: | Related:
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{{{
esennesh@lap282:~/Programs$ ghc herps.hs
[1 of 1] Compiling Herps ( herps.hs, herps.o )
ghc: panic! (the 'impossible' happened)
(GHC version 7.4.2 for x86_64-unknown-linux):
compiler/rename/RnSource.lhs:430:14-81: Irrefutable pattern failed
for pattern Data.Maybe.Just (inst_tyvars,
_,
SrcLoc.L _ cls,
_)
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7538>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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