hg: jdk/jdk: 8222766: Shenandoah: streamline post-LRB CAS barrier (x86)

[shade at redhat.com]

Changeset: 6a147ac7a68f
Author:    shade
Date:      2019-09-30 22:39 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/6a147ac7a68f

8222766: Shenandoah: streamline post-LRB CAS barrier (x86)
Reviewed-by: rkennke

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