ONe fo my machines still has K8 - AMD64 X2 6000+ in it.
cat /proc/cpuinfo doesn't list SSE3 capabilities of the CPU, whereas AMD states that newer AMD64 (2005 and after that) are SSE3 capable and gcc-4.3.2 has -march=k8-sse3
Wikipedia states that AMD K8 is SSE3 capable, except for a few Intel-specific instructions. Maybe that is the reason why it isn't listed in /proc/cpuinfo ?
Until now I have always used -march=k8, but now I wonder whether it would be safe to use k8-sse3.
Has anyone tried this yet ?
