RFR: 8331126: [s390x] secondary_super_cache does not scale well [v6]

[Martin Doerr]

On Thu, 27 Jun 2024 20:22:46 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> But if we clobber this then verification will fail. Because in this method we are dependent on value present in `r_result`.  It's just that I'm making sure that whatever value is there it's either `1` or `0`.
>
> There are instructions which don't kill the src operand. E.g. ngrk or slrg.

Ok. I assume that CPUs which don't support `z_srlk` are no longer supported.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19544#discussion_r1659737266