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

[Fei Yang]

On Tue, 16 May 2023 00:28:33 GMT, Fei Yang <fyang 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.
>
> @zhengxiaolinX : Thanks for fixing this. The changes looks good to me.
> Suggestion for the JBS issue title: [riscv-port-jdk17u] Intrinsify Unsafe.storeStoreFence
> 
> PS: I am referencing issue title naming convention for other project like lilliput: https://bugs.openjdk.org/browse/JDK-8302065

> @RealFYang do you think we are ready now to try to go into jdk17u-dev ?

Still a couple of backports pending, like JDK-8307446. I was told those are currently under testing.
If everything goes well, I think we should be able to initiating the upstreaming early next month.

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PR Comment: https://git.openjdk.org/riscv-port-jdk17u/pull/52#issuecomment-1552278548