[vectorIntrinsics+mask] RFR: 8274342: AArch64: [vector] AArch64 SVE backend code cleanup

[Ningsheng Jian]

On Mon, 27 Sep 2021 09:59:49 GMT, Eric Liu <eliu at openjdk.org> wrote:

> This patch refactors AArch64 SVE backend codes with merging some rules
> into C2_MacroAssembler. As the input of VectorMaskOp changed after
> JDK-8273949, this patch fixes the backend to support using predicate
> register as input.
> 
> The size of libjvm.so reduces about 100KB after this patch.

LGTM.

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Marked as reviewed by njian (Committer).

PR: https://git.openjdk.java.net/panama-vector/pull/134