RFR: 8256406: G1 x86 C1/Interpreter post write barrier always uses 32 bit to access variable sized PtrQueue::_index [v2]

[Aleksey Shipilev]

On Wed, 18 Nov 2020 08:41:18 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hi all,
>> 
>>   can I have reviews for this change that fixes benign issues with the G1 C1/interpreter barriers that on x64 only used the lower 32 bit word of the 64 bit PtrQueue::_index member?
>> 
>> Testing: tier1, linux-x86 builds
>> 
>> Thanks,
>>   Thomas
>
> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
> 
>   shade review

This looks good to me, thanks.

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Marked as reviewed by shade (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1257