src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/ControlSplitNode.java

*** 40,51 ****
--- 40,62 ----
      }
  
      public abstract double probability(AbstractBeginNode successor);
  
      /**
+      * Attempts to set the probability for the given successor to the passed value (which has to be
+      * in the range of 0.0 and 1.0). Returns whether setting the probability was successful.
+      */
+     public abstract boolean setProbability(AbstractBeginNode successor, double value);
+ 
+     /**
       * Primary successor of the control split. Data dependencies on the node have to be scheduled in
       * the primary successor.
       *
       * @return the primary successor
       */
      public abstract AbstractBeginNode getPrimarySuccessor();
+ 
+     /**
+      * Returns the number of successors.
+      */
+     public abstract int getSuccessorCount();
  }