RFR: 8267356: AArch64: Vector API SVE codegen support

[Ningsheng Jian]

Hi Andrew,

On 5/20/21 4:15 PM, Andrew Haley wrote:
> On 5/20/21 8:48 AM, Ningsheng Jian wrote:
>> Note: our original plan was making this work part of JEP 414 Vector API (Second Incubator) [1], but we realized that it's now close to 17 release cycle and the JEP process may take time. Adding more features could delay the whole review process for the JEP. So we separate this work out as a standalone patch.
> 
> Does this code do anything in the JDK itself? Can it be tested outside
> the incubator project?
> 

Without this patch, running current Vector API code, landed in jdk16, on 
SVE systems, will simply fallback to the API's java implementation 
without intrinsification.

This patch has been tested with existing Vector API code in current 
jdk/jdk project, with expected SVE code generated.


Thanks,
Ningsheng