ZBarrier::barrier

[Andrew Haley]

On 3/13/19 12:15 PM, Per Liden wrote:
> Hi Andrew,
> 
> On 3/13/19 12:59 PM, Andrew Haley wrote:
>> I'm trying to get my head around self-healing in ZGC.
>>
>> In c1-compiled code, when we call ZBarrier::barrier(volatile oop* p, oop o),
>> what does p point to?
>>
> 
> p points to the reference field where o was loaded from. So if we detect 
> that o is bad, then we want to write back the healed version of o into 
> p. Makes sense?

Got it, thanks.

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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