[vectorIntrinsics] Integrated: 8263644: Add Extract float nodes implementation for Arm SVE

[Wang Huang]

On Wed, 17 Mar 2021 01:29:47 GMT, Wang Huang <whuang at openjdk.org> wrote:

> We implement ExtractD & ExtractF Node for Arm SVE backend.
> * overload encoding functions `sve_lasta` & `sve_lastb`
> * for future JDK-8263424, we eliminate vector length judgements and use  `rscratch1`

This pull request has now been integrated.

Changeset: 47334c5b
Author:    Wang Huang <whuang at openjdk.org>
Committer: Ningsheng Jian <njian at openjdk.org>
URL:       https://git.openjdk.java.net/panama-vector/commit/47334c5b
Stats:     125 lines in 5 files changed: 52 ins; 4 del; 69 mod

8263644: Add Extract float nodes implementation for Arm SVE

Co-authored-by: Wang Huang <whuang at openjdk.org>
Co-authored-by: He Xuejin <hexuejin2 at huawei.com>
Co-authored-by: Ai Jiaming <aijiaming1 at huawei.com>
Reviewed-by: xgong, njian

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PR: https://git.openjdk.java.net/panama-vector/pull/51