--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodeinfo/src/org/graalvm/compiler/nodeinfo/NodeCycles.java	2017-11-03 23:57:02.890182944 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodeinfo/src/org/graalvm/compiler/nodeinfo/NodeCycles.java	2017-11-03 23:57:02.560168177 -0700
@@ -68,6 +68,10 @@
         this.value = value;
     }
 
+    public boolean isValueKnown() {
+        return this != NodeCycles.CYCLES_UNKNOWN && this != NodeCycles.CYCLES_UNSET;
+    }
+
     public static final int IGNORE_CYCLES_CONTRACT_FACTOR = 0xFFFF;
 
     public static NodeCycles compute(NodeCycles base, int opCount) {