#7070: "the 'impossible' happened"
--------------------------------+-------------------------------------------
Reporter: aristidb | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.4.2 | Keywords:
Os: Linux | Architecture: x86_64 (amd64)
Failure: Compile-time crash | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by aristidb):
Note that there's a script trigger.sh that should trigger the bug. It does
basically the same ghc -package-conf invocation as in the original
unminimised example, and yields this output for me:
{{{
aristid@sigmoid:~/Code/data-kinds-haskell-bug$ ./trigger.sh
Resolving dependencies...
Configuring data-kinds-haskell-bug-0.1...
Preprocessing library data-kinds-haskell-bug-0.1...
Building data-kinds-haskell-bug-0.1...
[1 of 1] Compiling IsThisTheBug ( IsThisTheBug.hs,
dist/build/IsThisTheBug.o )
Registering data-kinds-haskell-bug-0.1...
[1 of 1] Compiling Main ( Importer.hs, Importer.o )
ghc: panic! (the 'impossible' happened)
(GHC version 7.4.2 for x86_64-unknown-linux):
tyThingTyCon
Data constructor `data-kinds-haskell-
bug-0.1:IsThisTheBug.KindConstructor1{d r2Q}'
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
(The fact that Trac doesn't allow editing comments makes it hard for me,
because I always think of new stuff after I've already made the comment.)
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7070#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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