--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.jtt/src/org/graalvm/compiler/jtt/backend/ConstantPhiTest.java	2016-12-09 00:50:11.881189397 -0800
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2015, 2015, 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.jtt.backend;
+
+import static org.graalvm.compiler.api.directives.GraalDirectives.LIKELY_PROBABILITY;
+import static org.graalvm.compiler.api.directives.GraalDirectives.injectBranchProbability;
+
+import java.lang.reflect.Method;
+
+import org.junit.Test;
+
+import org.graalvm.compiler.core.common.GraalOptions;
+import org.graalvm.compiler.jtt.JTTTest;
+import org.graalvm.compiler.options.OptionValue;
+import org.graalvm.compiler.options.OptionValue.OverrideScope;
+
+public class ConstantPhiTest extends JTTTest {
+
+    public static int test(int i, int x) throws Throwable {
+        int r;
+        if (injectBranchProbability(LIKELY_PROBABILITY, i < 0)) {
+            r = 42;
+        } else {
+            r = x;
+        }
+        destroyCallerSavedValues();
+        return r;
+    }
+
+    protected static void destroyCallerSavedValues() throws Throwable {
+        Class<ConstantPhiTest> c = ConstantPhiTest.class;
+        Method m = c.getMethod("destroyCallerSavedValues0");
+        m.invoke(null);
+    }
+
+    public static void destroyCallerSavedValues0() {
+    }
+
+    @Test
+    @SuppressWarnings("try")
+    public void run0() {
+        try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) {
+            runTest("test", 0, 0xDEADDEAD);
+        }
+    }
+
+    @Test
+    @SuppressWarnings("try")
+    public void run1() {
+        try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) {
+            runTest("test", -1, 0xDEADDEAD);
+        }
+    }
+
+    @Test
+    @SuppressWarnings("try")
+    public void run2() {
+        try (OverrideScope os = OptionValue.override(GraalOptions.MaximumInliningSize, -1)) {
+            runTest("test", 1, 0xDEADDEAD);
+        }
+    }
+}