[jdk23u] RFR: 8342014: RISC-V: ZStoreBarrierStubC2 clobbers rflags [v2]

[Fei Yang]

On Tue, 15 Oct 2024 10:36:54 GMT, Gui Cao <gcao at openjdk.org> wrote:

>> Hi, The same issue also exists in the jdk23u. I would like to backport this to jdk23u. becasue jdk23u not have [JDK-8334060](https://bugs.openjdk.org/browse/JDK-8334060), so this backport is not clean. This is a risc-v specific change, risk is low.
>> 
>> # Testing
>> - [ ]  Run tier1-3 tests on SOPHON SG2042 (release)
>
> Gui Cao has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
> 
>  - Merge remote-tracking branch 'upstream/master' into backport-JDK-8342014
>  - Backport 8342014: RISC-V: ZStoreBarrierStubC2 clobbers rflags

Looks good. Thanks.

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Marked as reviewed by fyang (Reviewer).

PR Review: https://git.openjdk.org/jdk23u/pull/176#pullrequestreview-2369126376