git: openjdk/jdk17u-dev: 8290082: [PPC64] ZGC C2 load barrier stub needs to preserve vector registers

[Martin Doerr]

Changeset: 528693c9
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2022-07-14 10:08:22 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/528693c991da80f8aedc4dd8639ed2898fa6b503

8290082: [PPC64] ZGC C2 load barrier stub needs to preserve vector registers

Backport-of: 393dc7ade716485f4452d0185caf9e630e4c6139

! src/hotspot/cpu/ppc/gc/z/zBarrierSetAssembler_ppc.cpp
! src/hotspot/cpu/ppc/ppc.ad
! src/hotspot/cpu/ppc/register_ppc.hpp
! src/hotspot/cpu/ppc/vmreg_ppc.cpp
! src/hotspot/cpu/ppc/vmreg_ppc.hpp