Integrated: 8354572: Turn off AlwaysMergeDMB for Ampere CPU by default

Sat Apr 19 10:04:45 UTC 2025

On Tue, 15 Apr 2025 08:16:08 GMT, Liming Liu <lliu at openjdk.org> wrote:

> Hi all, I found that "dmb ishst + dmb ishld" is obviously faster than "dmb ish" on Ampere CPU, so I submit this patch to make the former be default.

This pull request has now been integrated.

Changeset: 128f2d1c
Author:    Liming Liu <lliu at openjdk.org>
Committer: SendaoYan <syan at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/128f2d1cadae3cf91e4c590e6dabe2086737b7dd
Stats:     3 lines in 1 file changed: 3 ins; 0 del; 0 mod

8354572: Turn off AlwaysMergeDMB for Ampere CPU by default

Reviewed-by: shade

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

PR: https://git.openjdk.org/jdk/pull/24652