[lworld] RFR: 8371357: [lworld] Remove EnableValhalla [v3]

[Stefan Karlsson]

On Tue, 16 Dec 2025 10:10:20 GMT, Paul Hübner <phubner at openjdk.org> wrote:

>> I think this should be fine because `T_FLAT_ELEMENT` is hardcoded to `15` regardless of if Valhalla/preview is enabled.
>
> Testing until tier 4 also shows no issue, so I think I'm confident enough to leave it as is. Unless someone from compiler has any insights?

FWIW, a follow-up could add an assert in this branch that we are indeed running with value classes.

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PR Review Comment: https://git.openjdk.org/valhalla/pull/1759#discussion_r2622919594