Hi Andi, [EMAIL PROTECTED] wrote on 10/03/2008 18:32:35:
> > I noticed the gcc 4.3.0 changes document on the website does not > mention that the vectorizer is now on by default in -O3. > Perhaps that should be added? It seems like an important noteworthy > change to me. Thanks for pointing this out. The vectorizer's website was not update for a while. I am going to do that. > > I'm not sure it applies to all architectures, but it applies to > x86 at least. Vectorization (-ftree-vectorize) is on by default in -O3 on all platforms, but many architectures require additional flags to actually apply it, like -maltivec on PowerPC. Thanks, Ira > > -Andi
