Tom Lane wrote:
> Alan Stange <stange@rentec.com> writes:
>> This code isn't used by gcc, is it? Or are you thinking to use the same
>> assembler segment in the inline function used by gcc?
>
> The out-of-line .s files aren't used for gcc builds --- what's on the
> table here is whether to make the gcc inline assembler in s_lock.h
> match up with what's in the out-of-line files.
>
>> Was there any reason given for the cas patch?
>
> It appeared to me that the submitter just had a bee in his bonnet about
> cas being nicer ;-). There might be something real to it, but AFAIR he
> didn't present any hard evidence.
Here's one workaround.
Check out the comment and implementation for cas32() in this .il
template file for libc from OpenSolaris:
http://cvs.opensolaris.org/source/xref/on/usr/src/lib/libc/sparc/threads/sparc.il
