#5742: compiler option -XDoRec crash
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Reporter: Huenniger | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.2.1 | Keywords: frisby recusive do -XDoRec
Os: Unknown/Multiple | Architecture: x86
Failure: Compile-time crash | Testcase:
Blockedby: | Blocking:
Related: |
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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
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5742>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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