Bugs item #814864, was opened at 2003-09-29 19:40
Message generated for change (Comment added) made by nobody
You can respond by visiting:
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Category: Compiler
Group: 6.0
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: bug ghc --make
Initial Comment:
Using ghc-6.0 with
ghc --make mimico.hs
gives:
ghc: panic! (the 'impossible' happened, GHC 6.0):
coreSyn/coreUtils.lhs: 1188: Non-exaustive patterns
in function isCrossDllArg
I've done some work to help you finding the cause of
the bug, by leaving only 4 (stripped down) files (see
attachment). A single line --- the definition of function
getInput, in ParsecPrim.hs --- is indicated that, if
modified (by writing, say, "getInput=undefined")
causes "ghc --make mimco.hs" not to 'panic'.
(The bug turned out to appear in Parsec files; seems
Daan Leijen didn't use "ghc --make" :-).
Hope that helps...
Tchau,
Carlos
----------------------------------------------------------------------
Comment By: Nobody/Anonymous (nobody)
Date: 2003-09-30 20:23
Message:
Logged In: NO
Oops, it has nothing to do with "--make":
ghc -c ParsecPrim.hs
causes the same crash...
Silly guessing by myself.
Tchau, Carlos
----------------------------------------------------------------------
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=814864&group_id=8032
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