RFR: 8326139: C2 SuperWord: split packs (match use/def packs, implemented, mutual independence) [v5]

[Emanuel Peter]

On Tue, 27 Feb 2024 19:23:45 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Yes, they did. It was some of those tests that motivated the introduction of `is_populate_index`
>
> Add comment  (your option 2.) before `!is_populate_index(` check to explain why we do check.

Done

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PR Review Comment: https://git.openjdk.org/jdk/pull/17848#discussion_r1505558413