On Sun, Jul 08, 2007 at 12:10:04PM +0100, Andrew Coppin wrote: > (Realistically though. My program takes a [Word8] and turns it into a > [Bool] before running a parser over it. The GHC optimiser doesn't really > stand a hope in hell of optimising that into a program that reads a machine > word into a CPU register and starts playing with bit flips on it...)
Actually, if you're very lucky (fusion is just as hard in Haskell as it is in real life), it *does*. It seems to fit nicely into the stream-fusion framework. > PS. Are those zlib libraries actually written in Haskell? Or are they a > thin layer on top of a C library? Yup, they wrap C's zlib. > PPS. Does GHC make use of MMX, SSE, et al? No (in spirit - the native code generator uses 1-element SSE operations for floating point because it's easier to optimize than "FPU" code). Stefan _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
