Quote from: Jeff Garzik on August 27, 2010, 2:35:26 PM UTC… -march=XXXX means the compiler expects the binary will only be run on amdfam10.
That’s exactly what we want. But I agree, it’s a dirty hack to use -march=amdfam10. In this case it’ll produce the most compact and efficient SSE2 code from the source. A cleaner alternative would be inline assembler.
So, what CPU’s support this? Is this only the newest AMD ones? And how many systems are we excluding because of this?