Monthly Archives: February 2013

SSE2 beats SSE4.2 in memcmp?

At the moment I haven’t any box where I can test the latest GCC compilers and SSE4.2 support (pcmpestri etc). So far, the following beats gcc 4.4 with -march=corei7 -msse4.2 (okay, perhaps that’s redundant :-). But gcc generates “repz cmpsb” … Continue reading

Posted in ffs, SSE2, SSE4.2, string search | 2 Comments