RFR: 8264018: AArch64: NEON loadV2 and storeV2 addressing is wrong

[Andrew Dinn]

On Wed, 24 Mar 2021 06:48:47 GMT, Ningsheng Jian <njian at openjdk.org> wrote:

> AArch64 c2 loadV2 and storeV2 are used for Vector API mask value load/store with size of halfword. Their load/store immediate offset should be similar to other vector load/store, e.g. loadV4/storeV4, valid only for unscaled signed offset of imm9 or scaled unsigned offset of imm12:scale. This patch also groups other loadVs/storeVs together in the ad file.
> 
> Verified with tier1 and jtreg vector api cases, though I cannot reproduce this issue.

Looks good.

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Marked as reviewed by adinn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/3168