#4160: Panic! at the HEAD
-------------------------------+--------------------------------------------
Reporter: LouisWasserman | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.13
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Linux | Blocking:
Architecture: x86 | Failure: Compile-time crash
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Comment(by igloo):
Thanks for the report. It would be useful if you could include the error,
and reproduction instructions, when reporting bugs.
In this case, GHC only panics with `-O`:
{{{
$ ghc -c -O q.hs
ghc-stage2: panic! (the 'impossible' happened)
(GHC version 6.13.20100731 for x86_64-unknown-linux):
coTyConAppKind
LEFT
[ghc-prim:GHC.Prim.trans{(w) tc 34y}
(ghc-prim:GHC.Prim.sym{(w) tc 34v}
(main:Foo.TFCo:R:TrieMapTP{tc rch} f{tv ab2} [sk] g{tv ab4}
[sk]))
co_wild_B1{tv} [tv]]
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4160#comment:3>
GHC <http://www.haskell.org/ghc/>
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