#1804: Panic: applyTypeToArgs with -O
--------------------------------------+-------------------------------------
Reporter: dons | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler (Type checker) | Version: 6.8
Severity: normal | Keywords:
Difficulty: Unknown | Os: OpenBSD
Testcase: | Architecture: x86_64 (amd64)
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My HWN publishing program,
http://www.galois.com/~dons/publish.hs
elicits a panic from a ghc 6.8 snapshot from Sep 9, when compiled with -O:
{{{
$ ghc --make -O publish.hs -o publish -no-recomp
[1 of 1] Compiling Main ( publish.hs, publish.o )
ghc-6.9.20070916: panic! (the 'impossible' happened)
(GHC version 6.9.20070916 for x86_64-unknown-openbsd):
applyTypeToArgs
unix-2.0:System.Posix.Signals.a37{v rjv} [gid]
(unix-2.0:System.Posix.Signals.a25{v rju} [gid]
`cast` (base:GHC.Prim.sym{(w) tc 34v}
(base:Foreign.C.Types.:CoCInt{tc rjt})
:: <pred>base:GHC.Int.Int32{tc 3V}
~
<nt>base:Foreign.C.Types.CInt{tc r9e}))
unix-2.0:System.Posix.Signals.Ignore{v rjs} [gid]
(base:Data.Maybe.Nothing{v r4U} [gid]
@ <nt>unix-2.0:System.Posix.Signals.SignalSet{tc rjr})
eta{v a3Uh} [lid]
(# base:GHC.Prim.State#{(w) tc 32q}
base:GHC.Prim.RealWorld{(w) tc 31E},
base:GHC.Base.(){(w) tc 40} #)
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1804>
GHC <http://www.haskell.org/ghc/>
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