RFR: 8227086: Use AS_NO_KEEPALIVE loads in HeapDumper

[Stefan Karlsson]

Thanks, Kim.

StefanK

On 2019-07-03 00:11, Kim Barrett wrote:
>> On Jul 2, 2019, at 9:53 AM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:
>>
>> Hi all,
>>
>> Please review this patch to read objects with AS_NO_KEEPALIVE in the HeapDumper.
>>
>> http://cr.openjdk.java.net/~stefank/8227086/webrev.01/
>> https://bugs.openjdk.java.net/browse/JDK-8227086
>>
>> Found this while running some extra verification code through our barriers. This is one place where we use ON_UNKNOWN_OOP_REF without AS_NO_KEEPALIVE. The current code isn't wrong, but we could just as well use the more light-weight load barrier here.
>>
>> Tested with tier 1-7
>>
>> Thanks,
>> StefanK
> Looks good.
>