--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/DegeneratedLoopsTest.java	2017-02-15 16:57:31.620787607 -0800
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2011, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package org.graalvm.compiler.core.test;
+
+import org.junit.Test;
+
+import org.graalvm.compiler.debug.Debug;
+import org.graalvm.compiler.debug.Debug.Scope;
+import org.graalvm.compiler.debug.DebugDumpScope;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
+import org.graalvm.compiler.phases.common.CanonicalizerPhase;
+import org.graalvm.compiler.phases.common.inlining.InliningPhase;
+import org.graalvm.compiler.phases.tiers.HighTierContext;
+
+/**
+ * In the following tests, the usages of local variable "a" are replaced with the integer constant
+ * 0. Then canonicalization is applied and it is verified that the resulting graph is equal to the
+ * graph of the method that just has a "return 1" statement in it.
+ */
+public class DegeneratedLoopsTest extends GraalCompilerTest {
+
+    private static final String REFERENCE_SNIPPET = "referenceSnippet";
+
+    @SuppressWarnings("all")
+    public static int referenceSnippet(int a) {
+        return a;
+    }
+
+    @Test
+    public void test1() {
+        test("test1Snippet");
+    }
+
+    private static class UnresolvedException extends RuntimeException {
+
+        private static final long serialVersionUID = 5215434338750728440L;
+
+        static {
+            if (true) {
+                throw new UnsupportedOperationException("this class may never be initialized");
+            }
+        }
+    }
+
+    @SuppressWarnings("all")
+    public static int test1Snippet(int a) {
+        for (;;) {
+            try {
+                test();
+                break;
+            } catch (UnresolvedException e) {
+            }
+        }
+        return a;
+    }
+
+    private static void test() {
+
+    }
+
+    @SuppressWarnings("try")
+    private void test(final String snippet) {
+        try (Scope s = Debug.scope("DegeneratedLoopsTest", new DebugDumpScope(snippet))) {
+            StructuredGraph graph = parseEager(snippet, AllowAssumptions.YES);
+            HighTierContext context = getDefaultHighTierContext();
+            new InliningPhase(new CanonicalizerPhase()).apply(graph, context);
+            new CanonicalizerPhase().apply(graph, context);
+            Debug.dump(Debug.BASIC_LOG_LEVEL, graph, "Graph");
+            StructuredGraph referenceGraph = parseEager(REFERENCE_SNIPPET, AllowAssumptions.YES);
+            Debug.dump(Debug.BASIC_LOG_LEVEL, referenceGraph, "ReferenceGraph");
+            assertEquals(referenceGraph, graph);
+        } catch (Throwable e) {
+            throw Debug.handle(e);
+        }
+    }
+}