git: openjdk/jdk: 8320397: RISC-V: Avoid passing t0 as temp register to MacroAssembler:: cmpxchg_obj_header/cmpxchgptr

[Fei Yang]

Changeset: 0be0775a
Author:    Gui Cao <gcao at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
Date:      2023-12-15 07:23:50 +0000
URL:       https://git.openjdk.org/jdk/commit/0be0775a762edbefacf4188b4787b039153fe670

8320397: RISC-V: Avoid passing t0 as temp register to MacroAssembler:: cmpxchg_obj_header/cmpxchgptr

Reviewed-by: rehn, fyang

! src/hotspot/cpu/riscv/gc/x/x_riscv.ad
! src/hotspot/cpu/riscv/gc/z/z_riscv.ad
! src/hotspot/cpu/riscv/interp_masm_riscv.cpp
! src/hotspot/cpu/riscv/macroAssembler_riscv.cpp
! src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp