#1714: GHC crashes when encountering arrow syntax
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Reporter: [EMAIL PROTECTED] | Owner:
Type: bug | Status: new
Priority: high | Milestone: 6.8.1
Component: Compiler | Version: 6.8
Severity: critical | Keywords:
Difficulty: Unknown | Os: Linux
Testcase: | Architecture: x86
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Compiling the following code makes GHC 6.8.20070916 crash:
{{{
{-# LANGUAGE Arrows #-}
module ArrowSyntax where
import Control.Arrow
arrow :: (Arrow arrow) => arrow () ()
arrow = proc () -> do returnA -< ()
}}}
The message is:
{{{
ghc-6.8.0.20070916: panic! (the 'impossible' happened)
(GHC version 6.8.0.20070916 for i386-unknown-linux):
initC: srt_lbl
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
I encountered the same behavior with other expressions using arrow syntax,
so the arrow syntax really seems to be the cause of this panic.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1714>
GHC <http://www.haskell.org/ghc/>
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