On Fri, 2006-11-17 at 09:10 -0500, Hans-Christoph Steiner wrote: > On Nov 17, 2006, at 7:01 AM, Tim Blechmann wrote: > > > On Thu, 2006-11-16 at 16:28 -0500, Hans-Christoph Steiner wrote: > >> Debian/testing now uses gcc 4.1 as its default compiler. I just > >> noticed when doing the apt-get upgrades. Has anyone tried the auto- > >> vectorization stuff? Is it worthwhile with Pd? > > > > you might want to check the archives: > > http://lists.puredata.info/pipermail/pd-dev/2006-08/007324.html > > > > to explain the terms 'alignment' and 'aliasing': > > > > alignment: > > audio blocks are not known to be aligned to 16byte boundaries > > > > aliasing: > > for functions in the form foo(t_sample * a, t_sample * b, int n), the > > compiler is unable to know if the memory regions of a and b are > > overlapping (b may be a+1) > > Right, I remember that, I was meaning more has anyone tried any > benchmarks.
i must admit, but i'm a bit confused ... how can an auto-vectorizer, that's known not to have any effect for a piece of code improve it's performance? tim -- [EMAIL PROTECTED] ICQ: 96771783 http://www.mokabar.tk Beware of bugs in the above code; I have only proved it correct, not tried it. Donald Knuth
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