[jmm-dev] weakCompareAndSet memory semantics

Andrew Haley aph at redhat.com
Wed Apr 20 10:03:47 UTC 2016

On 20/04/16 10:55, Aleksey Shipilev wrote:
> I wonder if that was the intended use for weakCAS in C++11, and if so,
> shouldn't we re-spec weakCAS in Java to have volatile/seq_cst memory
> effects?

Probably.  Or, at least, we want a weakCompareAndSet which is sequentially
consistent.  As a general principle: we have an opportunity to make Java's
operators consistent with those of C++, and we shouldn't mess that up.


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