RFR: 8325449: [BACKOUT] use "dmb.ishst+dmb.ishld" for release barrier

[Christian Hagedorn]

On Wed, 14 Feb 2024 06:03:40 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> Clean backout of [JDK-8324186](https://bugs.openjdk.org/browse/JDK-8324186) which caused performance regressions with several benchmarks (see [JDK-8325449](https://bugs.openjdk.org/browse/JDK-8325449) and [JDK-8325269](https://bugs.openjdk.org/browse/JDK-8325269)). REDO work is tracked by [JDK-8325821](https://bugs.openjdk.org/browse/JDK-8325821).
> 
> Thanks,
> Tobias

Make sense, looks good!

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Marked as reviewed by chagedorn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/17841#pullrequestreview-1879552205