RFR: 8304720: SuperWord::schedule should rebuild C2-graph from SuperWord dependency-graph [v2]

[Fei Gao]

On Fri, 5 May 2023 08:56:28 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Hi @eme64 thanks for your reply. Since all these nodes in a pack are executed at the same time, we don't really care about the first or last one, i.e., position in the pack. What we really care about is if we can get the right memory input from the first or last one for the pack, correctly connecting to other mem ops in the loop body. Did I get that right? Thanks.
>
> @fg1417 Yes, that is the reason. This was like that before and after my patch.
> I did not want to change too much here. I wanted to avoid refactoring the whole of `SuperWord::output`.

Make sense to me.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13354#discussion_r1186579455