Date: Mon, 9 Jan 2012 23:48:49 -0500 From: Eitan Adler <lists@eitanadler.com> To: John-Mark Gurney <jmg@funkthat.com> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, "Pedro F. Giffuni" <pfg@freebsd.org>, src-committers@freebsd.org Subject: Re: svn commit: r229415 - head/lib/libvgl Message-ID: <CAF6rxg=2BKy-_z_hRpX25U4dXhemha49gbajmvERmtkyBNH%2BYw@mail.gmail.com> In-Reply-To: <20120110040219.GE52468@funkthat.com> References: <201201031947.q03JlXnx039684@svn.freebsd.org> <20120110040219.GE52468@funkthat.com>
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On Mon, Jan 9, 2012 at 11:02 PM, John-Mark Gurney <jmg@funkthat.com> 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
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