[vectorIntrinsics] RFR: 8254826: Add reduction nodes implementation for Arm SVE

[Paul Sandoz]

On Thu, 15 Oct 2020 10:52:06 GMT, Dongbo He <dongbohe at openjdk.org> wrote:

> Contributed-by: wanghuang3 at huawei.com, hexuejin2 at huawei.com
> 
> Add reduction nodes support for Arm SVE. Add the backend codegen for nodes like "AndReductionVNode" "OrReductionVNode"
> "XorReductionVNode" "MaxReductionVNode" "MinReductionVNode" .

@dongbohe when adding a contributor using email address try enclosing the address in '<' and '>' e.g (view in raw
textual form:

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PR: https://git.openjdk.java.net/panama-vector/pull/13