I can confirm this performance bug with GHC version 6.6.1 on OS X PCC (G4) Leopard.
It performs correctly, lazily keeping 'primes' for all 4 repetitions, when using "ghc -Onot" but the the doSlow fails to retain 'primes' when compiling with "ghc -O" and "ghc -O2"
Cheers, Chris _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
