[jdk21u-dev] RFR: 8320397: RISC-V: Avoid passing t0 as temp register to MacroAssembler:: cmpxchg_obj_header/cmpxchgptr

[duke]

On Tue, 15 Oct 2024 10:29:12 GMT, Gui Cao <gcao at openjdk.org> wrote:

> Hi, The same issue also exists in the jdk21u. I would like to backport this to jdk21u-dev. This is a risc-v specific change. Backport is clean, risk is low.
> 
> ### Testing
> - [x] Run tier1-3 tests on SOPHON SG2042 (release)

@zifeihan 
Your change (at version a348ca74d38bf2487b5890de9e041a67a8d79655) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/1053#issuecomment-2416955684