[vector] Update AbsV match rule for AArch64 NEON

[Ningsheng Jian]

Hi Yang,

On 8/21/19 1:36 PM, Yang Zhang (Arm Technology China) wrote:
> Hi
> 
> Could anyone please help to review this patch?
> 
> Webrev: http://cr.openjdk.java.net/~yzhang/vectorapi/vectorapi.absv/webrev.00/
> 
> In this patch, AbsV nodes are seperated to AbsVB/AbsVS/AbsVI/AbsVL. Instruction
> encodings are also updated..
> 

This looks good to me. Maybe the assembler_aarch64.hpp changes should go 
to jdk/jdk?

Thanks,
Ningsheng