git: openjdk/jdk11u-dev: 8252857: AArch64: Shenandoah C1 CAS is not sequentially consistent

[Aleksey Shipilev]

Changeset: 7cafcf4c
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-08-25 15:10:16 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/7cafcf4c34bef00fceb295f17877f88ff8c7e0bb

8252857: AArch64: Shenandoah C1 CAS is not sequentially consistent

Reviewed-by: rkennke, clanger
Backport-of: 8e87d46f41e663f5d0506554054417e3049175e7

! src/hotspot/cpu/aarch64/gc/shenandoah/c1/shenandoahBarrierSetC1_aarch64.cpp
! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp