RFR (S) 8222766: Shenandoah: streamline post-LRB CAS barrier

[Aleksey Shipilev]

On 4/23/19 11:01 AM, Roman Kennke wrote:
> This looks good to me. One minor nit:
> 
> 609   // to-space, and memory pointer is to-space as well. Nothing is able to store
> 610   // to-space ptr into memory anymore.
> 
> Should be: Nothing is able to store from-space ptr into memory anymore.
> 
> Also:
> 
> 626   // and promote the result. Note that we handle the flag from any the CASes
> 627   // either from fast-path or retries.
> 
> 'from any *of* the CASes'

Right. Updated in-place.

-Aleksey

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