RFR: 8347405: MergeStores with reverse bytes order value [v13]

[kuaiwei]

On Thu, 6 Mar 2025 02:17:17 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> @RealFYang , thanks for your comments. As you mentioned, IR test framework can not check Zbb extension for RISCV platform, so I disable it for RISCV64. I think we can make a new PR to enhance IR test framework and enable the test.
>
> That works for me. Maybe you can update the code comments to make it more accurate? Like:
> `// Exclude riscv64 where ReverseBytes is only conditionally supported`

Comments updated

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PR Review Comment: https://git.openjdk.org/jdk/pull/23030#discussion_r1982600202