--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common/src/org/graalvm/compiler/phases/common/PropagateDeoptimizeProbabilityPhase.java	Tue Sep 24 08:54:08 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common/src/org/graalvm/compiler/phases/common/PropagateDeoptimizeProbabilityPhase.java	Tue Sep 24 12:47:15 2019 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -26,6 +26,7 @@
 
 import jdk.internal.vm.compiler.collections.EconomicMap;
 import jdk.internal.vm.compiler.collections.EconomicSet;
+import jdk.internal.vm.compiler.collections.Equivalence;
 import jdk.internal.vm.compiler.collections.MapCursor;
 import org.graalvm.compiler.graph.NodeStack;
 import org.graalvm.compiler.nodes.AbstractBeginNode;
@@ -52,7 +53,7 @@
         if (graph.hasNode(AbstractDeoptimizeNode.TYPE)) {
 
             NodeStack stack = new NodeStack();
-            EconomicMap<ControlSplitNode, EconomicSet<AbstractBeginNode>> reachableSplits = EconomicMap.create();
+            EconomicMap<ControlSplitNode, EconomicSet<AbstractBeginNode>> reachableSplits = EconomicMap.create(Equivalence.IDENTITY);
 
             // Mark all control flow nodes that are post-dominated by a deoptimization.
             for (AbstractDeoptimizeNode d : graph.getNodes(AbstractDeoptimizeNode.TYPE)) {