Integrated: 8368303: AlwaysAtomicAccesses is excessively strict

Tue Oct 7 10:11:58 UTC 2025

On Mon, 22 Sep 2025 16:51:08 GMT, Andrew Haley <aph at openjdk.org> wrote:

> In C1, the experimental flag `AlwaysAtomicAccesses` treats accesses to all fields as if they were volatile fields. This is correct but excessive: we only need single-copy atomicity to satisfy `AlwaysAtomicAccesses`. 
> 
> We need this in order to allow progress on JDK-8365147.

This pull request has now been integrated.

Changeset: aed9485b
Author:    Andrew Haley <aph at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/aed9485bbb1d93063e5e5f60ed84bfb36053bdd1
Stats:     14 lines in 1 file changed: 10 ins; 0 del; 4 mod

8368303: AlwaysAtomicAccesses is excessively strict

Reviewed-by: shade, vlivanov, dlong

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PR: https://git.openjdk.org/jdk/pull/27432