RFR (11): Streamline CAS barriers, C2 ideal graph generation and matching

[Aleksey Shipilev]

On 5/30/19 1:00 PM, Roman Kennke wrote:
> Recently, I've streamlined the C1 and backend parts of CAS. When doing
> the LRB backport to 11, I noticed that should also harmonize C2 ideal
> generation and matching for CASes:
> 
> http://cr.openjdk.java.net/~rkennke/jdk11-streamline-cas-c2/webrev.00/

Looks fine to me. Roland might want to eyeball?

Hold it off until we clear and push shenandoah-jdk-11.0.4+5 tag in the evening?

-Aleksey