[lworld+vector] RFR: 8319972: [lworld+vector] Enable intrinsification of Unsafe.finishPrivateBuffer. [v2]

[Xiaohong Gong]

On Thu, 16 Nov 2023 10:10:16 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> I see. Thanks! Sounds reasonable. The native implementation of `makePrivateBuffer()` also marks the larval bit of the object. Can we get some help from it?
>
> Idea here is to prevent scalarization of value objects in larval state, above check ensures that InlineTypeNode rematerialized from return value of non-inlined makePrivateBuffer are rebuffered and transitioned into larval state.

It makes sense to me. Thanks!

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PR Review Comment: https://git.openjdk.org/valhalla/pull/952#discussion_r1398564307