--- Mar 10/1/12, John-Mark Gurney ha scritto:
> Eitan Adler wrote this message on
> Mon, Jan 09, 2012 at 23:48 -0500:
> > On Mon, Jan 9, 2012 at 11:02 PM, John-Mark Gurney
>
> wrote:
> > > Last time I did benchmarking on this ~10 years
> > > ago, it was slower to use xor instead of
> > > using
Eitan Adler wrote this message on Mon, Jan 09, 2012 at 23:48 -0500:
> On Mon, Jan 9, 2012 at 11:02 PM, John-Mark Gurney wrote:
> > Last time I did benchmarking on this ~10 years ago, it was slower to
> > use xor instead of using assignments...
>
> I'd be shocked if the compiler didn't optimize th
Hello;
--- Mar 10/1/12, Dimitry Andric ha scritto:
> Data: Martedì 10 gennaio 2012, 03:07
> On 2012-01-03 20:47, Pedro F. Giffuni
> wrote:
> > Author: pfg
> > Date: Tue Jan 3 19:47:32 2012
> > New Revision: 229415
> > URL: http://svn.freebsd.org/changeset/base/229415
> >
> > Log:
> > Integr
On 2012-01-03 20:47, Pedro F. Giffuni wrote:
Author: pfg
Date: Tue Jan 3 19:47:32 2012
New Revision: 229415
URL: http://svn.freebsd.org/changeset/base/229415
Log:
Integrate the line drawing algorithm from the book "Graphic Gems 1".
http://www.graphicsgems.org/
At the time it claimed
On 2012-01-10 05:48, Eitan Adler wrote:
On Mon, Jan 9, 2012 at 11:02 PM, John-Mark Gurney wrote:
Last time I did benchmarking on this ~10 years ago, it was slower to
use xor instead of using assignments...
I'd be shocked if the compiler didn't optimize this away to an XCHG.
Even with our an
On Mon, Jan 9, 2012 at 11:02 PM, John-Mark Gurney wrote:
> Last time I did benchmarking on this ~10 years ago, it was slower to
> use xor instead of using assignments...
I'd be shocked if the compiler didn't optimize this away to an XCHG.
--
Eitan Adler
_
Hi John;
--- Lun 9/1/12, John-Mark Gurney ha scritto:
...
> Pedro F. Giffuni wrote this message
> on Tue, Jan 03, 2012 at 19:47 +:
> > +#define SL_SWAP(a,b)
> {a^=b; b^=a; a^=b;}
>
> Can we replace this w/ a normal swap function?
>
> Last time I did benchmarking on this ~10 years
Pedro F. Giffuni wrote this message on Tue, Jan 03, 2012 at 19:47 +:
> +#define SL_SWAP(a,b) {a^=b; b^=a; a^=b;}
Can we replace this w/ a normal swap function?
Last time I did benchmarking on this ~10 years ago, it was slower to
use xor instead of using assignments...
--
John-Ma
Author: pfg
Date: Tue Jan 3 19:47:32 2012
New Revision: 229415
URL: http://svn.freebsd.org/changeset/base/229415
Log:
Integrate the line drawing algorithm from the book "Graphic Gems 1".
http://www.graphicsgems.org/
At the time it claimed to be 3-4 times faster than the traditional
