Date: Mon, 9 Jan 2012 20:02:19 -0800 From: John-Mark Gurney <jmg@funkthat.com> To: "Pedro F. Giffuni" <pfg@FreeBSD.org> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r229415 - head/lib/libvgl Message-ID: <20120110040219.GE52468@funkthat.com> In-Reply-To: <201201031947.q03JlXnx039684@svn.freebsd.org> References: <201201031947.q03JlXnx039684@svn.freebsd.org>
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Pedro F. Giffuni wrote this message on Tue, Jan 03, 2012 at 19:47 +0000:
> +#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-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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