hg: shenandoah/jdk11: Streamline CAS barriers, C2 ideal graph generation and matching

[rkennke at redhat.com]

Changeset: 674ff4da0611
Author:    rkennke
Date:      2019-05-30 12:53 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk11/rev/674ff4da0611

Streamline CAS barriers, C2 ideal graph generation and matching
Reviewed-by: shade, roland

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/x86/x86_64.ad
! src/hotspot/share/adlc/formssel.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.hpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.hpp
! src/hotspot/share/opto/classes.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/escape.cpp
! src/hotspot/share/opto/matcher.cpp