RFR(XS): 8246689: Enable independent compressed oops/class ptrs on Aarch64

[Erik Österlund]

Hi Patric,

Yes, it’s trivial. Ship it!

/Erik

> On 9 Jun 2020, at 22:16, Patric Hedlin <patric.hedlin at oracle.com> wrote:
> 
> Thanks Erik.
> 
> Would you say the change is trivial...
> 
> /Patric
> 
>> On 2020-06-09 08:04, Erik Österlund wrote:
>> Hi Patric,
>> 
>> This looks good. Thank you for trying this out on AArch64. Only Graal to go now, then we can remove the switch and have support for this feature be expected on all platforms.
>> 
>> /Erik
>> 
>>>> On 9 Jun 2020, at 00:24, Patric Hedlin <patric.hedlin at oracle.com> wrote:
>>> 
>>> Dear all,
>>> 
>>> I would like to ask for help to review the following change/update:
>>> 
>>> Issue:  https://bugs.openjdk.java.net/browse/JDK-8246689
>>> Webrev: http://cr.openjdk.java.net/~phedlin/tr8246689/
>>> 
>>> 
>>> Aarch64 was not included in JDK-8241825. This small patch enables the feature on Aarch64 and updates the associated test-case (in tier2). This patch is an attempt to make tier2 all green for linux-aarch64, that we want to run in regular testing (see JDK-8246691).
>>> 
>>> Testing: tier1-2 and a number of runs of RunThese30M.
>>> 
>>> 
>>> Best regards,
>>> Patric