RFR: 8368303: AlwaysAtomicAccesses is excessively strict [v2]

[Andrew Haley]

On Mon, 6 Oct 2025 08:55:06 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This is a good compromise.
> 
> At the risk of dragging it ever further, I think we can make it ever crisper by catching the fact we are going for `volatile_field_(load|store)` either for proper volatile, or because we wanted to force atomicity.

Mmm yes, good point. Done.

> It looks like we really want to push the `membar()`-s down to `LIRGenerator`, though. Especially as AArch64 emits more membars on top:

Yes, that's WIP, waiting for this patch.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/27432#issuecomment-3371519513