[cpp-threads] A question about N2153

[Peter Dimov]

Raul Silvera wrote:

> N2153 is trying to propose a model that does not overtly favor any
> specific niche CPU. We're looking for a trade-off between
> programmability and performance across the whole spectrum of parallel
> architectures.

One more question, can you clarify the semantics of RMW_ordered? Is it 
equivalent to RMW_acquire_release, where the acquire applies to the read 
part, and the release applies to the write part, or is it ordered more 
strongly (total systemwide order on all RMW_ordered, useful for building SC 
atomics)?