Date: Tue, 6 Aug 2013 12:37:01 -0400 From: John Baldwin <jhb@freebsd.org> To: "Jung-uk Kim" <jkim@freebsd.org> Cc: svn-src-projects@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r253872 - in projects/atomic64/sys: amd64/include i386/include Message-ID: <201308061237.01659.jhb@freebsd.org> In-Reply-To: <201308012320.r71NKWlN083697@svn.freebsd.org> References: <201308012320.r71NKWlN083697@svn.freebsd.org>
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On Thursday, August 01, 2013 7:20:32 pm Jung-uk Kim wrote: > Author: jkim > Date: Thu Aug 1 23:20:31 2013 > New Revision: 253872 > URL: http://svnweb.freebsd.org/changeset/base/253872 > > Log: > Allow any register to be used for the return value. You need to clobber eax/rax then as cmpxchg always writes the current value to that register. -- John Baldwin
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