#826: Optimization breaks strictness with IO
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Reporter: [EMAIL PROTECTED] | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.4.2
Severity: minor | Keywords:
Os: Unknown | Difficulty: Unknown
Architecture: Unknown |
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The following program fails with exception when compiled with -O0, but
terminates successfully when compiled with -O.
{{{
module Main(main) where
import Control.Concurrent.MVar
f l =undefined `seq` putStrLn "q"
main = do
mv <- newMVar ()
f () `seq` putStrLn "Hello"
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/826>
GHC <http://www.haskell.org/ghc/>
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