Compiling with 6.4.3, I have no problems, even with optimisation on. I'll let you know if it happens again. Thanks!
Frederik On Thu, Aug 17, 2006 at 05:47:21PM +0100, Simon Peyton-Jones wrote: > OK, I can reproduce it now. (Previously I was not compiling with -O2.) > > It's a bug in 6.4.2 related to GADTs, specifically in the typing of > interface files. You get a much more informative message if you use the > flag "-dcore-lint". > > I think it's fixed in the upcoming 6.4.3 release; at least it works for > me. > > Can you try to download a snapshot distribution of 6.4.3 (the "STABLE" > branch) from > http://www.haskell.org/ghc/download.html > and try that? > > Simon > > | -----Original Message----- > | From: Frederik Eaton [mailto:[EMAIL PROTECTED] > | Sent: 16 August 2006 15:48 > | To: Simon Peyton-Jones > | Subject: Re: impossible happened: splitTyConApp a{tv i6hr} > | > | Here: > | > | http://ofb.net/~frederik/gslhaskell2-ghc-bug1.tar.gz > | > | The file "General.hs" is the subdirectory "Vector". > | > | The problem only happens when I edit General.hs and recompile... > | > | Frederik > | > | On Wed, Aug 16, 2006 at 03:30:02PM +0100, Simon Peyton-Jones wrote: > | > I'd like to reproduce this, but to do so I'll need either a cut-down > | > version, or all the source code need to get to the point where it > fell > | > over. Could you manage the former, or if not, the latter? Thanks > | > > | > S > | > > | > | -----Original Message----- > | > | From: [EMAIL PROTECTED] > | > [mailto:[EMAIL PROTECTED] > | > | On Behalf Of Frederik Eaton > | > | Sent: 16 August 2006 14:52 > | > | To: glasgow-haskell-bugs@haskell.org > | > | Subject: impossible happened: splitTyConApp a{tv i6hr} > | > | > | > | I've attached the code. > | > | > | > | > Skipping Vector ( Vector.hs, dist/build/Vector.o ) > | > | > Compiling Vector.General ( ./Vector/General.hs, > | > dist/build/Vector/General.o ) > | > | > > | > | > ./Vector/General.hs:29:0: > | > | > Warning: No explicit method nor default method for > | > `vectorUpdate' > | > | > In the instance declaration for `Vector (GVector e) > e' > | > | > > | > | > ./Vector/General.hs:29:0: > | > | > Warning: No explicit method nor default method for `byRow' > | > | > In the instance declaration for `Vector (GVector e) > e' > | > | > ghc-6.4.2: panic! (the `impossible' happened, GHC version > 6.4.2): > | > | > splitTyConApp a{tv i6hr} > | > | > > | > | > Please report this as a compiler bug. See: > | > | > http://www.haskell.org/ghc/reportabug > | > | > | > | -- > | > | http://ofb.net/~frederik/ > | > > | > | -- > | http://ofb.net/~frederik/ > -- http://ofb.net/~frederik/ _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
