git: openjdk/jdk21u-dev: master: 8320807: [PPC64][ZGC] C1 generates wrong code for atomics

[Martin Doerr]

Changeset: 0106db07
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2023-12-14 16:33:27 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/0106db077b2e20d1b6d5e9dc3bbc323c42e43b4d

8320807: [PPC64][ZGC] C1 generates wrong code for atomics

Backport-of: 3087e14cde9257680f0406b11942f9cb7739cb7b

! src/hotspot/cpu/ppc/c1_LIRAssembler_ppc.cpp
! src/hotspot/cpu/ppc/c1_LIRGenerator_ppc.cpp
! src/hotspot/cpu/ppc/gc/shenandoah/c1/shenandoahBarrierSetC1_ppc.cpp
! src/hotspot/cpu/ppc/gc/z/zBarrierSetAssembler_ppc.cpp