--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/LoopFragment.java	Fri Feb 02 10:37:48 2018 -0500
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/LoopFragment.java	Fri Feb 02 17:28:17 2018 -0800
@@ -22,7 +22,12 @@
  */
 package org.graalvm.compiler.loop;
 
-import jdk.vm.ci.meta.TriState;
+import java.util.ArrayDeque;
+import java.util.Collections;
+import java.util.Deque;
+import java.util.Iterator;
+
+import org.graalvm.collections.EconomicMap;
 import org.graalvm.compiler.debug.GraalError;
 import org.graalvm.compiler.graph.Graph;
 import org.graalvm.compiler.graph.Graph.DuplicationReplacement;
@@ -52,12 +57,8 @@
 import org.graalvm.compiler.nodes.spi.NodeWithState;
 import org.graalvm.compiler.nodes.virtual.CommitAllocationNode;
 import org.graalvm.compiler.nodes.virtual.VirtualObjectNode;
-import org.graalvm.util.EconomicMap;
 
-import java.util.ArrayDeque;
-import java.util.Collections;
-import java.util.Deque;
-import java.util.Iterator;
+import jdk.vm.ci.meta.TriState;
 
 public abstract class LoopFragment {