--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/AbstractMergeNode.java	2017-07-07 09:31:20.000000000 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/AbstractMergeNode.java	2017-07-07 09:31:20.000000000 -0700
@@ -28,7 +28,6 @@
 
 import java.util.List;
 
-import org.graalvm.compiler.debug.Debug;
 import org.graalvm.compiler.graph.IterableNodeType;
 import org.graalvm.compiler.graph.Node;
 import org.graalvm.compiler.graph.NodeClass;
@@ -183,7 +182,7 @@
                     }
                 }
             }
-            Debug.log("Split %s into ends for %s.", this, merge);
+            getDebug().log("Split %s into ends for %s.", this, merge);
             int numEnds = this.forwardEndCount();
             for (int i = 0; i < numEnds - 1; i++) {
                 AbstractEndNode end = forwardEndAt(numEnds - 1 - i);