git: openjdk/jdk: master: 8355363: [BACKOUT] 8354668: Missing REX2 prefix accounting in ZGC barriers leads to incorrect encoding

[Tobias Hartmann]

Changeset: c2e90bcc
Branch: master
Author:    Tobias Hartmann <thartmann at openjdk.org>
Date:      2025-04-23 08:21:07 +0000
URL:       https://git.openjdk.org/jdk/commit/c2e90bcc8026fb2047b42deae6cdad738d6d01b8

8355363: [BACKOUT] 8354668: Missing REX2 prefix accounting in ZGC barriers leads to incorrect encoding

Reviewed-by: chagedorn

! src/hotspot/cpu/x86/gc/z/zBarrierSetAssembler_x86.cpp
! src/hotspot/cpu/x86/gc/z/zBarrierSetAssembler_x86.hpp
! src/hotspot/cpu/x86/gc/z/z_x86_64.ad
! src/hotspot/cpu/x86/jvmciCodeInstaller_x86.cpp