--- /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/HashCodeTest.java	2017-02-15 16:57:36.130983480 -0800
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2016, 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.Assert;
+import org.junit.Test;
+
+import org.graalvm.compiler.core.phases.HighTier;
+import org.graalvm.compiler.core.phases.MidTier;
+import org.graalvm.compiler.nodes.InvokeNode;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.extended.LoadHubNode;
+import org.graalvm.compiler.nodes.extended.LoadMethodNode;
+import org.graalvm.compiler.phases.OptimisticOptimizations;
+import org.graalvm.compiler.phases.tiers.MidTierContext;
+
+public class HashCodeTest extends GraalCompilerTest {
+
+    static class OverrideHashCode {
+        @Override
+        public int hashCode() {
+            return 42;
+        }
+    }
+
+    static final class DontOverrideHashCode {
+    }
+
+    public static final Object NonOverridingConstant = new Object();
+    public static final Object OverridingConstant = new OverrideHashCode();
+
+    private static void initialize(Class<?> c) {
+        try {
+            Class.forName(c.getName(), true, c.getClassLoader());
+        } catch (ClassNotFoundException e) {
+            throw new AssertionError(e);
+        }
+    }
+
+    public static final int hashCodeSnippet01(Object o) {
+        return o.hashCode();
+    }
+
+    public static final int systemIdentityHashCodeSnippet01(Object o) {
+        return System.identityHashCode(o);
+    }
+
+    public static final int hashCodeFoldSnippet01() {
+        return NonOverridingConstant.hashCode();
+    }
+
+    public static final int identityHashCodeFoldSnippet01() {
+        return System.identityHashCode(NonOverridingConstant);
+    }
+
+    public static final int hashCodeNoFoldOverridingSnippet01(Object o) {
+        return o.hashCode();
+    }
+
+    public static final int identityHashCodeFoldOverridingSnippet01() {
+        return System.identityHashCode(OverridingConstant);
+    }
+
+    public static final int dontOverrideHashCodeFinalClass(DontOverrideHashCode o) {
+        return o.hashCode();
+    }
+
+    @Test
+    public void test01() {
+        test("hashCodeSnippet01", new Object());
+    }
+
+    @Test
+    public void test02() {
+        test("systemIdentityHashCodeSnippet01", new Object());
+    }
+
+    @Test
+    public void test03() {
+        StructuredGraph g = buildGraphAfterMidTier("hashCodeFoldSnippet01");
+        Assert.assertEquals(0, g.getNodes().filter(InvokeNode.class).count());
+    }
+
+    @Test
+    public void test04() {
+        StructuredGraph g = buildGraphAfterMidTier("identityHashCodeFoldSnippet01");
+        Assert.assertEquals(0, g.getNodes().filter(InvokeNode.class).count());
+    }
+
+    @Test
+    public void test05() {
+        checkForGuardedIntrinsicPattern("hashCodeNoFoldOverridingSnippet01");
+
+        Object nullObject = null;
+        test("hashCodeNoFoldOverridingSnippet01", nullObject);
+        test("hashCodeNoFoldOverridingSnippet01", new Object());
+        test("hashCodeNoFoldOverridingSnippet01", new DontOverrideHashCode());
+    }
+
+    @Test
+    public void test06() {
+        StructuredGraph g = buildGraphAfterMidTier("identityHashCodeFoldOverridingSnippet01");
+        Assert.assertEquals(0, g.getNodes().filter(InvokeNode.class).count());
+    }
+
+    @Test
+    public void test07() {
+        initialize(DontOverrideHashCode.class);
+        StructuredGraph g = buildGraphAfterMidTier("dontOverrideHashCodeFinalClass");
+        Assert.assertEquals(0, g.getNodes().filter(InvokeNode.class).count());
+    }
+
+    public static final int hashCodeInterface(Appendable o) {
+        return o.hashCode();
+    }
+
+    @Test
+    public void test08() {
+        initialize(Appendable.class);
+        checkForGuardedIntrinsicPattern("hashCodeInterface");
+        checkForGuardedIntrinsicPattern("hashCodeSnippet01");
+    }
+
+    private void checkForGuardedIntrinsicPattern(String name) {
+        StructuredGraph g = parseForCompile(getResolvedJavaMethod(name));
+        Assert.assertEquals(1, g.getNodes().filter(InvokeNode.class).count());
+        Assert.assertEquals(1, g.getNodes().filter(LoadHubNode.class).count());
+        Assert.assertEquals(1, g.getNodes().filter(LoadMethodNode.class).count());
+    }
+
+    @SuppressWarnings("try")
+    private StructuredGraph buildGraphAfterMidTier(String name) {
+        StructuredGraph g = parseForCompile(getResolvedJavaMethod(name));
+        new HighTier().apply(g, getDefaultHighTierContext());
+        new MidTier().apply(g, new MidTierContext(getProviders(), getTargetProvider(), OptimisticOptimizations.ALL, g.getProfilingInfo()));
+        return g;
+    }
+
+}