[EXTERNAL]RFC: Partial Escape Analysis in HotSpot C2

[Vladimir Kozlov]

On 10/12/22 7:58 AM, Liu, Xin wrote:
> hi, Vladimir,
>> You should show that your implementation can rematirealize an object
> at any escape site.
> 
> My understanding is I suppose to 'materialize' an object at any escape site.

Words ;^)

Yes, I mistyped and misspelled.

Vladimir K

> 
> 'rematerialize' refers to 'create an scalar-replaced object on heap' in
> deoptimization. It's for interpreter as if the object was created in the
> first place. It doesn't apply to an escaped object because it's marked
> 'GlobalEscaped' in C2 EA.
> 
> 
> Okay. I will try this idea!
> 
> thanks,
> --lx
> 
> 
> 
> 
> On 10/11/22 3:12 PM, Vladimir Kozlov wrote:
>> Also in your test there should be no merge at safepoint2 because `obj` is "not alive" (not referenced) anymore.