olivaE <bchkifa@xxxxxxxxx> writes: > I'm not sure I should be asking for this here or in apple or intel forums, > but anyway, I have a mac book intel core duo and I'm running mac os 10.6.7. > I have xcode 3.2.6 and the default compiler is gcc 4.2, and it's the last > version of gcc supported in xcode yet. I lately started to use intel SSE for > some linear algebra routines and I would like to use _m256 type but I > couldn't find it in the xmmintrin.h header, is this because It's not > supported by the hardware , I bought my mac on 2007, or I just have to > update the intel SSE headers. The _m256 type is supported in immintrin.h, but only when -march indicates that AVX support is available. This is only available in gcc 4.4 and later. Ian
