[lworld] RFR: 8352647: [lworld] Remove larval InlineTypeNode in Unsafe intrinsics [v2]

[Quan Anh Mai]

On Wed, 26 Mar 2025 14:14:12 GMT, Quan Anh Mai <qamai at openjdk.org> wrote:

>> Hi,
>> 
>> As a step of #1405, I would like to remove the usage of larval value objects in `Unsafe` intrinsics. This patch also tries to make sure that `Unsafe::makePrivateBuffer` and `Unsafe::finishPrivateBuffer` are always inlined, so that larval objects do not cross call boundaries except for invoking object constructors.
>> 
>> Please take a look and review this PR, thanks a lot.
>
> Quan Anh Mai has updated the pull request incrementally with one additional commit since the last revision:
> 
>   comments, set and unset larval bit

I filed https://bugs.openjdk.org/browse/JDK-8353236 for improving the javadoc and I will file another issue later to try our best catching the illegal uses in C2.

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PR Comment: https://git.openjdk.org/valhalla/pull/1406#issuecomment-2765078997