git: openjdk/jdk16u: 8256215: Shenandoah: re-organize saving/restoring machine state in assembler code

[Aleksey Shipilev]

Changeset: 12f505ad
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-03-03 21:23:33 +0000
URL:       https://git.openjdk.java.net/jdk16u/commit/12f505ad

8256215: Shenandoah: re-organize saving/restoring machine state in assembler code

Backport-of: a97aedff9f622ba6816b7550588f1d429bff2483

! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_32.cpp