RFR: 8322770: Implement C2 VectorizedHashCode on AArch64 [v9]

[Mikhail Ablakatov]

On Wed, 18 Sep 2024 12:28:17 GMT, Andrew Haley <aph at openjdk.org> wrote:

> Does that make a significant measurable difference?

I'll revert on this with performance numbers later.

> Why not simply 32-align the region? Then we can get rid of this large_loop_size calculation.

We aim to align the code only if it reduces the number of aligned 32-byte instruction memory regions the loop compromises.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18487#discussion_r1765068543