git: openjdk/jdk: 8269598: Regressions up to 5% on aarch64 seems due to JDK-8268858

[Yi Yang]

Changeset: 7c234919
Author:    Joshua Zhu <jzhu at openjdk.org>
Committer: Yi Yang <yyang at openjdk.org>
Date:      2021-07-15 01:57:31 +0000
URL:       https://git.openjdk.java.net/jdk/commit/7c2349191893f07d133ff94a0be4472948f7920b

8269598: Regressions up to 5% on aarch64 seems due to JDK-8268858

Reviewed-by: kvn, dlong

! src/hotspot/cpu/aarch64/aarch64.ad