#2409: Error: symbol `ghczmprim_GHCziUnit_Z0T_closure' is already defined
-------------------------+--------------------------------------------------
Reporter: igloo | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.10.1
Component: Compiler | Version: 6.9
Severity: normal | Keywords:
Difficulty: Unknown | Testcase:
Architecture: Unknown | Os: Unknown
-------------------------+--------------------------------------------------
This module:
{{{
module Foo where
f :: Int -> Int
f _ | () `seq` False = undefined
| otherwise = error "XXX"
g :: Int -> Int
g _ | () `seq` False = undefined
| otherwise = error "XXX"
}}}
doesn't compile with 6.8.3 or the HEAD; here's what happens with the HEAD
(compiled with -DDEBUG, but I'm pretty sure it wouldn't work anyway):
{{{
$ ghc -fforce-recomp -c Foo.hs
ghc-6.9.20080701: panic! (the 'impossible' happened)
(GHC version 6.9.20080701 for x86_64-unknown-linux):
ASSERT failed! file stgSyn/CoreToStg.lhs line 922 (){v 71} [lid]
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
$ ghc -fforce-recomp -c Foo.hs -O
/tmp/ghc4665_0/ghc4665_0.s: Assembler messages:
/tmp/ghc4665_0/ghc4665_0.s:95:0:
Error: symbol `ghczmprim_GHCziUnit_Z0T_closure' is already defined
}}}
The original problem report, using Takusen, is here:
http://www.haskell.org/pipermail/glasgow-haskell-
users/2008-June/015037.html
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2409>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
