#5742: compiler option -XDoRec crash
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Reporter: Huenniger | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.2.1
Keywords: frisby recusive do -XDoRec | Os: Unknown/Multiple
Architecture: x86 | Failure: Compile-time crash
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Changes (by igloo):
* difficulty: => Unknown
Old description:
> I tried to compile a complex 200 KByte grammer using the library frisby.
> I got a linking error. The file is essentially one big "do rec" block and
> thus needs -XDoRec compiler option.
> I installed the latest GHC Version and use the minus -C flag to analyze
> the problem, which resulted in a ghc panic.
>
> dirk@dirk-desktop:~/temp/wb2pdf/trunk/exp$ ghc -C -XDoRec Grammer.hs
> addFlag by -C on the commandline:
> Warning: The -fvia-C flag does nothing; it will be removed in a
> future GHC release
> ghc: panic! (the 'impossible' happened)
> (GHC version 7.2.2 for i386-unknown-linux):
> pipeLoop: at phase As but I wanted to stop at phase HCc
>
> Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
New description:
I tried to compile a complex 200 KByte grammer using the library frisby. I
got a linking error. The file is essentially one big "do rec" block and
thus needs -XDoRec compiler option.
I installed the latest GHC Version and use the minus -C flag to analyze
the problem, which resulted in a ghc panic.
{{{
dirk@dirk-desktop:~/temp/wb2pdf/trunk/exp$ ghc -C -XDoRec Grammer.hs
addFlag by -C on the commandline:
Warning: The -fvia-C flag does nothing; it will be removed in a future
GHC release
ghc: panic! (the 'impossible' happened)
(GHC version 7.2.2 for i386-unknown-linux):
pipeLoop: at phase As but I wanted to stop at phase HCc
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
}}}
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5742#comment:3>
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