Hey, just came across this when searching for something else and now I realise 
why I never heard anything more about this bug report (I was the original 
submitter). Anyway, Jonathan if you're still watching this thread, thanks for 
the follow-up.

I have another atomic_ops question, which may now get lost due to replying to 
an old thread, but anyway here goes:

- Is there a plan to add atomic_cas_128 (or similar) to expose the underlying 
cmpxchg16b operation on AMD64? From what I've read this is 'widely' supported 
by AMD chips now ... not sure about over in Intel-land but my guess is that 
they'd be there as well.

Cheers,

Matt.
 
 
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