RFR: 8360654: AArch64: Remove redundant dmb from C1 compareAndSet [v2]
Andrew Haley
aph at openjdk.org
Fri Jul 25 08:05:55 UTC 2025
On Thu, 24 Jul 2025 10:46:00 GMT, Samuel Chee <duke at openjdk.org> wrote:
> I have been unable to find any particular use patterns which relies on the existence of these trailing dmbs, so it does not seem necessary to add the trailingDMB option. Although would like to hear your thoughts on the issue.
Maybe simply move the `dmb` after the non-LSE ldxr/stxr logic, then.
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PR Review Comment: https://git.openjdk.org/jdk/pull/26000#discussion_r2230446292
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