Subj : Re: Memory visibility and MS Interlocked instructions
To   : comp.programming.threads
From : Scott Meyers
Date : Thu Aug 25 2005 11:14 am

David Schwartz wrote:
 >     The MS Interlocked instructions can only work on platforms where the
 > compiler puts in any  necessary memory barriers on all accesses to
 > 'volatile' variables. This happens to be very easy to do on x86.

But this would require that MS insert membars on all volatile accesses,
because there is, in general, no way to know whether another part of the
program uses an interlocked instruction.  Do MS and MS-compatible compilers
really do that?

Scott

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