[aarch64-port-dev ] RFR(L): 8231441: AArch64: Initial SVE backend support

[Ningsheng Jian]

Hi,

Thanks a lot for the reviews! I think I have addressed the review 
comments from Andrew, Vladimir and Erik. This is the new webrev:

Full:
http://cr.openjdk.java.net/~njian/8231441/webrev.05/

Incremental:
http://cr.openjdk.java.net/~njian/8231441/webrev.05-vs-04/

Tests:
Tested with jtreg hotspot_all_no_apps, jdk_core and langtools:tier1 on 
AArch64 systems with and without SVE as well as some x86_64 systems. 
Mach5 submit test also reported passed.

Could you please help to take a look again? OK for jdk/jdk?

Thanks,
Ningsheng

On 8/19/20 5:53 PM, Ningsheng Jian wrote:
> Hi Andrew,
> 
> I have updated the patch based on the review comments. Would you mind
> taking another look? Thanks!
> 
> Full:
> http://cr.openjdk.java.net/~njian/8231441/webrev.04/
> 
> Incremental:
> http://cr.openjdk.java.net/~njian/8231441/webrev.04-vs-03/
> 
> Also add build-dev, as there's a makefile change.
> 
> And the split parts:
> 
> 1) SVE feature detection:
> http://cr.openjdk.java.net/~njian/8231441/webrev.04-feature
> 
> 2) c2 register allocation:
> http://cr.openjdk.java.net/~njian/8231441/webrev.04-ra
> 
> 3) SVE c2 backend:
> http://cr.openjdk.java.net/~njian/8231441/webrev.04-c2
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8231441
> CSR: https://bugs.openjdk.java.net/browse/JDK-8248742
>