RFR: 8290892: C2: Intrinsify Reference.reachabilityFence [v19]

[Vladimir Ivanov]

On Tue, 4 Nov 2025 08:27:41 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> The intention is to optimize RF nodes irrespective of whether loop optimizations are performed or not. (It mimics similar logic for expensive nodes.)
>
> Can you make that explicit with a code comment please?

Done.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25315#discussion_r2501851765