[vectorIntrinsics] Integrated: 8265817: Add LoadVectorGather nodes implementation for Arm SVE

[Wang Huang]

On Fri, 23 Apr 2021 06:54:50 GMT, Wang Huang <whuang at openjdk.org> wrote:

> * Add LoadVectorGather nodes implementation for Arm SVE
> * add new instruction `sve_ld1w_gather`[1] & `sve_ld1d_gather`[2]
> * move a small code into `op_sve_supported` as @nsjian suggested[3]
> * some code styles fix 
> [1] https://developer.arm.com/documentation/ddi0596/2020-12/SVE-Instructions/LD1W--scalar-plus-vector---Gather-load-unsigned-words-to-vector--vector-index--
> [2] https://developer.arm.com/documentation/ddi0596/2020-12/SVE-Instructions/LD1D--scalar-plus-vector---Gather-load-doublewords-to-vector--vector-index--
> [3]https://github.com/openjdk/panama-vector/pull/70#discussion_r618240204

This pull request has now been integrated.

Changeset: 37df2b12
Author:    Wang Huang <whuang at openjdk.org>
URL:       https://git.openjdk.java.net/panama-vector/commit/37df2b12
Stats:     181 lines in 6 files changed: 93 ins; 16 del; 72 mod

8265817: Add LoadVectorGather nodes implementation for Arm SVE

Co-authored-by: Wang Huang <whuang at openjdk.org>
Co-authored-by: Ai Jiaming <ajiaming1 at huawei.com>
Reviewed-by: xgong

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PR: https://git.openjdk.java.net/panama-vector/pull/72