On Sat, Oct 18, 2008 at 01:24:23PM -0700, Jason Garrett-Glaser wrote: > As far as I've experienced, there is zero measurable benefit from > -march higher than pentium2 (except for SSE float math maybe), and > GCC's autovectorization is patently worthless. Interesting. I actually tried building Firefox with -ftree-vectorize recently, but all I got was a binary that segfaulted immediately. So is that why it's worthless or is it because even if it produced a working binary, it wouldn't be any faster?
