[riscv-port-jdk17u:riscv-port] RFR: 8308089: [riscv-port-jdk17u] Intrinsify Unsafe.storeStoreFence

[Fei Yang]

On Mon, 15 May 2023 10:30:56 GMT, Xiaolin Zheng <xlinzheng at openjdk.org> wrote:

> [JDK-8252990](https://bugs.openjdk.org/browse/JDK-8252990) was recently backported to jdk17u in April. We should also enable the matching rule for `StoreStoreFence` on the WIP riscv-port-jdk17u repo.
> 
> Found the small fastdebug crash when backporting #51 using `-Xcomp`.
> 
> Testing a hotspot tier1~2 in progress.

Marked as reviewed by fyang (Lead).

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PR Review: https://git.openjdk.org/riscv-port-jdk17u/pull/52#pullrequestreview-1427743998