RFR: Resolve fwdptrs in CAS barrier without calling BarrierSet::resolve_for_read

[Roman Kennke]

Am 03.08.2018 um 19:40 schrieb Aleksey Shipilev:
> http://cr.openjdk.java.net/~shade/shenandoah/cas-resolve-direct/webrev.01/
> 
> In CAS barrier, we are already at rock bottom barrier-generation-wise. So we should instead call our
> own internal methods for resolving the fwdptrs on CAS fallback paths. Otherwise any change in
> BarrierSet, including weird flag configuration, can screw up CAS barrier.
> 
> Testing: x86_64 (tier3_gc_shenandoah), aarch64 (cross-build)
> 
> Thanks,
> -Aleksey
> 

Yes, please!
Thanks,
Roman