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Subj : Re: load-after-store reordering for x86 wrt smr...
To   : comp.programming.threads
From : Joe Seigh
Date : Mon Mar 14 2005 08:50 pm

On Mon, 14 Mar 2005 17:30:20 -0800, SenderX <xxx@xxx.com> wrote:

> Do you think that the store fence is needed in line 8:
>
>
[...]
>
>
> Line 7 would be the first store, line 9 would be the load-after-store from
> another location condition. It seems that smr requires explicit barriers on
> x86 to prevent the algorithm from crashing...
>
>
>
It has to be an mfence.  sfence is just store/store.


-- 
Joe Seigh

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