[jdk21u-dev] RFR: 8341146: RISC-V: Unnecessary fences used for load-acquire in template interpreter

[Fei Yang]

On Fri, 11 Oct 2024 00:47:51 GMT, Gui Cao <gcao at openjdk.org> wrote:

> Hi, The same issue also exists in the jdk21u. I would like to backport 8341146 to jdk21u-dev. becasue jdk21u-dev not have [JDK-8301997](https://bugs.openjdk.org/browse/JDK-8301997), so this backport is not clean. This is a risc-v specific change, risk is low. 
> 
> ### Testing on SOPHON SG2042 (release) 
> - [x] JCstress
> - [x] Run tier1 tests
> - [x] ~5% improvement on SPECJbb2005 score (-Xint -XX:+UseParallelGC)

Marked as reviewed by fyang (Reviewer).

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PR Review: https://git.openjdk.org/jdk21u-dev/pull/1044#pullrequestreview-2367948280