RFR: 8362504: AArch64: Replace MOVZ+MOVK+MOVK with ADRP+ADD

[Fei Gao]

On Thu, 14 Aug 2025 20:58:12 GMT, Andrew Haley <aph at openjdk.org> wrote:

> All of this stuff is pretty marginal. I can at least accept that `adrp; addp` is shorter therefore better,.
> 
> But I do not look forward to a blizzard of such changes.

@theRealAph That does make sense. Thanks for running the experimental tests — much appreciated!

I've disabled this reachability-based optimization during AOT code dumping in the new commit as suggested by @adinn .

Could you please take a look? Thanks again.

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PR Comment: https://git.openjdk.org/jdk/pull/26653#issuecomment-3200228046