[vectorIntrinsics] RFR: 8259536: Add cast nodes between interger types implementation for Arm SVE

[Xiaohong Gong]

On Tue, 12 Jan 2021 03:13:31 GMT, Wang Huang <whuang at openjdk.org> wrote:

> This patch add cast nodes between interger types implementation for Arm SVE like  "VectorCastB2X" "VectorCastI2X " "VectorCastS2X" "VectorCastL2X".

Hi @Wanghuang-Huawei,  thanks for adding the SVE support for VectorCast. I observed that this patch misses some type casts like: `byte -> long`, `short -> long`, `long -> byte` and `long -> short`. Do you have any plan to add these missing parts in future? I'd suggest to add them all with the single patch. WDYT?

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PR: https://git.openjdk.java.net/panama-vector/pull/31