[lworld] RFR: 8375719: [lworld] Move reads of flat fields entirely to the runtime [v2]

Wed Jan 21 18:09:40 UTC 2026

On Wed, 21 Jan 2026 09:21:40 GMT, Joel Sikström <jsikstro at openjdk.org> wrote:

>> I am working on trying to create something for representing an InlineKlass payload in the runtime code. It achives exactly this. Current work in progress: https://github.com/openjdk/valhalla/commit/5df331779cbb6e83493260d41dcdcd97a67ab495
>
> Then I suggest we can hold off on this until Axel's patch is ready. I see he also takes care of similar casts + offsets in InlineKlass.cpp which is nice.
> https://github.com/openjdk/valhalla/blob/a4fb7ebd5af316d3e99d10bffb44d5be3aab5548/src/hotspot/share/oops/inlineKlass.cpp#L238-L247

I don't know if it this should wait for Axel's patch, which I imagine is more extensive.  I think you could push this first.

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PR Review Comment: https://git.openjdk.org/valhalla/pull/1936#discussion_r2713746115