--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.test/src/org/graalvm/compiler/test/GraalTest.java	2016-12-09 00:57:22.618176028 -0800
@@ -0,0 +1,370 @@
+/*
+ * Copyright (c) 2013, 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.test;
+
+import java.io.PrintStream;
+import java.io.PrintWriter;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+
+import org.junit.Assert;
+import org.junit.internal.ComparisonCriteria;
+import org.junit.internal.ExactComparisonCriteria;
+
+import sun.misc.Unsafe;
+
+/**
+ * Base class that contains common utility methods and classes useful in unit tests.
+ */
+public class GraalTest {
+
+    public static final Unsafe UNSAFE;
+    static {
+        try {
+            Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
+            theUnsafe.setAccessible(true);
+            UNSAFE = (Unsafe) theUnsafe.get(Unsafe.class);
+        } catch (Exception e) {
+            throw new RuntimeException("exception while trying to get Unsafe", e);
+        }
+    }
+
+    public static final boolean Java8OrEarlier = System.getProperty("java.specification.version").compareTo("1.9") < 0;
+
+    protected Method getMethod(String methodName) {
+        return getMethod(getClass(), methodName);
+    }
+
+    protected Method getMethod(Class<?> clazz, String methodName) {
+        Method found = null;
+        for (Method m : clazz.getMethods()) {
+            if (m.getName().equals(methodName)) {
+                Assert.assertNull(found);
+                found = m;
+            }
+        }
+        if (found == null) {
+            /* Now look for non-public methods (but this does not look in superclasses). */
+            for (Method m : clazz.getDeclaredMethods()) {
+                if (m.getName().equals(methodName)) {
+                    Assert.assertNull(found);
+                    found = m;
+                }
+            }
+        }
+        if (found != null) {
+            return found;
+        } else {
+            throw new RuntimeException("method not found: " + methodName);
+        }
+    }
+
+    protected Method getMethod(Class<?> clazz, String methodName, Class<?>[] parameterTypes) {
+        try {
+            return clazz.getMethod(methodName, parameterTypes);
+        } catch (NoSuchMethodException | SecurityException e) {
+            throw new RuntimeException("method not found: " + methodName + "" + Arrays.toString(parameterTypes));
+        }
+    }
+
+    /**
+     * Compares two given objects for {@linkplain Assert#assertEquals(Object, Object) equality}.
+     * Does a deep copy equality comparison if {@code expected} is an array.
+     */
+    protected void assertDeepEquals(Object expected, Object actual) {
+        assertDeepEquals(null, expected, actual);
+    }
+
+    /**
+     * Compares two given objects for {@linkplain Assert#assertEquals(Object, Object) equality}.
+     * Does a deep copy equality comparison if {@code expected} is an array.
+     *
+     * @param message the identifying message for the {@link AssertionError}
+     */
+    protected void assertDeepEquals(String message, Object expected, Object actual) {
+        if (ulpsDelta() > 0) {
+            assertDeepEquals(message, expected, actual, ulpsDelta());
+        } else {
+            assertDeepEquals(message, expected, actual, equalFloatsOrDoublesDelta());
+        }
+    }
+
+    /**
+     * Compares two given values for equality, doing a recursive test if both values are arrays of
+     * the same type.
+     *
+     * @param message the identifying message for the {@link AssertionError}
+     * @param delta the maximum delta between two doubles or floats for which both numbers are still
+     *            considered equal.
+     */
+    protected void assertDeepEquals(String message, Object expected, Object actual, double delta) {
+        if (expected != null && actual != null) {
+            Class<?> expectedClass = expected.getClass();
+            Class<?> actualClass = actual.getClass();
+            if (expectedClass.isArray()) {
+                Assert.assertTrue(message, expected != null);
+                Assert.assertTrue(message, actual != null);
+                Assert.assertEquals(message, expectedClass, actual.getClass());
+                if (expected instanceof int[]) {
+                    Assert.assertArrayEquals(message, (int[]) expected, (int[]) actual);
+                } else if (expected instanceof byte[]) {
+                    Assert.assertArrayEquals(message, (byte[]) expected, (byte[]) actual);
+                } else if (expected instanceof char[]) {
+                    Assert.assertArrayEquals(message, (char[]) expected, (char[]) actual);
+                } else if (expected instanceof short[]) {
+                    Assert.assertArrayEquals(message, (short[]) expected, (short[]) actual);
+                } else if (expected instanceof float[]) {
+                    Assert.assertArrayEquals(message, (float[]) expected, (float[]) actual, (float) delta);
+                } else if (expected instanceof long[]) {
+                    Assert.assertArrayEquals(message, (long[]) expected, (long[]) actual);
+                } else if (expected instanceof double[]) {
+                    Assert.assertArrayEquals(message, (double[]) expected, (double[]) actual, delta);
+                } else if (expected instanceof boolean[]) {
+                    new ExactComparisonCriteria().arrayEquals(message, expected, actual);
+                } else if (expected instanceof Object[]) {
+                    new ComparisonCriteria() {
+                        @Override
+                        protected void assertElementsEqual(Object e, Object a) {
+                            assertDeepEquals(message, e, a, delta);
+                        }
+                    }.arrayEquals(message, expected, actual);
+                } else {
+                    Assert.fail((message == null ? "" : message) + "non-array value encountered: " + expected);
+                }
+            } else if (expectedClass.equals(double.class) && actualClass.equals(double.class)) {
+                Assert.assertEquals((double) expected, (double) actual, delta);
+            } else if (expectedClass.equals(float.class) && actualClass.equals(float.class)) {
+                Assert.assertEquals((float) expected, (float) actual, delta);
+            } else {
+                Assert.assertEquals(message, expected, actual);
+            }
+        } else {
+            Assert.assertEquals(message, expected, actual);
+        }
+    }
+
+    /**
+     * Compares two given values for equality, doing a recursive test if both values are arrays of
+     * the same type. Uses {@linkplain StrictMath#ulp(float) ULP}s for comparison of floats.
+     *
+     * @param message the identifying message for the {@link AssertionError}
+     * @param ulpsDelta the maximum allowed ulps difference between two doubles or floats for which
+     *            both numbers are still considered equal.
+     */
+    protected void assertDeepEquals(String message, Object expected, Object actual, int ulpsDelta) {
+        ComparisonCriteria doubleUlpsDeltaCriteria = new ComparisonCriteria() {
+            @Override
+            protected void assertElementsEqual(Object e, Object a) {
+                assertTrue(message, e instanceof Double && a instanceof Double);
+                // determine acceptable error based on whether it is a normal number or a NaN/Inf
+                double de = (Double) e;
+                double epsilon = (!Double.isNaN(de) && Double.isFinite(de) ? ulpsDelta * Math.ulp(de) : 0);
+                Assert.assertEquals(message, (Double) e, (Double) a, epsilon);
+            }
+        };
+
+        ComparisonCriteria floatUlpsDeltaCriteria = new ComparisonCriteria() {
+            @Override
+            protected void assertElementsEqual(Object e, Object a) {
+                assertTrue(message, e instanceof Float && a instanceof Float);
+                // determine acceptable error based on whether it is a normal number or a NaN/Inf
+                float fe = (Float) e;
+                float epsilon = (!Float.isNaN(fe) && Float.isFinite(fe) ? ulpsDelta * Math.ulp(fe) : 0);
+                Assert.assertEquals(message, (Float) e, (Float) a, epsilon);
+            }
+        };
+
+        if (expected != null && actual != null) {
+            Class<?> expectedClass = expected.getClass();
+            Class<?> actualClass = actual.getClass();
+            if (expectedClass.isArray()) {
+                Assert.assertEquals(message, expectedClass, actualClass);
+                if (expected instanceof double[] || expected instanceof Object[]) {
+                    doubleUlpsDeltaCriteria.arrayEquals(message, expected, actual);
+                    return;
+                } else if (expected instanceof float[] || expected instanceof Object[]) {
+                    floatUlpsDeltaCriteria.arrayEquals(message, expected, actual);
+                    return;
+                }
+            } else if (expectedClass.equals(double.class) && actualClass.equals(double.class)) {
+                doubleUlpsDeltaCriteria.arrayEquals(message, expected, actual);
+                return;
+            } else if (expectedClass.equals(float.class) && actualClass.equals(float.class)) {
+                floatUlpsDeltaCriteria.arrayEquals(message, expected, actual);
+                return;
+            }
+        }
+        // anything else just use the non-ulps version
+        assertDeepEquals(message, expected, actual, equalFloatsOrDoublesDelta());
+    }
+
+    /**
+     * Gets the value used by {@link #assertDeepEquals(Object, Object)} and
+     * {@link #assertDeepEquals(String, Object, Object)} for the maximum delta between two doubles
+     * or floats for which both numbers are still considered equal.
+     */
+    protected double equalFloatsOrDoublesDelta() {
+        return 0.0D;
+    }
+
+    // unless overridden ulpsDelta is not used
+    protected int ulpsDelta() {
+        return 0;
+    }
+
+    @SuppressWarnings("serial")
+    public static class MultiCauseAssertionError extends AssertionError {
+
+        private Throwable[] causes;
+
+        public MultiCauseAssertionError(String message, Throwable... causes) {
+            super(message);
+            this.causes = causes;
+        }
+
+        @Override
+        public void printStackTrace(PrintStream out) {
+            super.printStackTrace(out);
+            int num = 0;
+            for (Throwable cause : causes) {
+                if (cause != null) {
+                    out.print("cause " + (num++));
+                    cause.printStackTrace(out);
+                }
+            }
+        }
+
+        @Override
+        public void printStackTrace(PrintWriter out) {
+            super.printStackTrace(out);
+            int num = 0;
+            for (Throwable cause : causes) {
+                if (cause != null) {
+                    out.print("cause " + (num++) + ": ");
+                    cause.printStackTrace(out);
+                }
+            }
+        }
+    }
+
+    /*
+     * Overrides to the normal JUnit {@link Assert} routines that provide varargs style formatting
+     * and produce an exception stack trace with the assertion frames trimmed out.
+     */
+
+    /**
+     * Fails a test with the given message.
+     *
+     * @param message the identifying message for the {@link AssertionError} (<code>null</code>
+     *            okay)
+     * @see AssertionError
+     */
+    public static void fail(String message, Object... objects) {
+        AssertionError e;
+        if (message == null) {
+            e = new AssertionError();
+        } else {
+            e = new AssertionError(String.format(message, objects));
+        }
+        // Trim the assert frames from the stack trace
+        StackTraceElement[] trace = e.getStackTrace();
+        int start = 1; // Skip this frame
+        String thisClassName = GraalTest.class.getName();
+        while (start < trace.length && trace[start].getClassName().equals(thisClassName) && (trace[start].getMethodName().equals("assertTrue") || trace[start].getMethodName().equals("assertFalse"))) {
+            start++;
+        }
+        e.setStackTrace(Arrays.copyOfRange(trace, start, trace.length));
+        throw e;
+    }
+
+    /**
+     * Asserts that a condition is true. If it isn't it throws an {@link AssertionError} with the
+     * given message.
+     *
+     * @param message the identifying message for the {@link AssertionError} (<code>null</code>
+     *            okay)
+     * @param condition condition to be checked
+     */
+    public static void assertTrue(String message, boolean condition) {
+        assertTrue(condition, message);
+    }
+
+    /**
+     * Asserts that a condition is true. If it isn't it throws an {@link AssertionError} without a
+     * message.
+     *
+     * @param condition condition to be checked
+     */
+    public static void assertTrue(boolean condition) {
+        assertTrue(condition, null);
+    }
+
+    /**
+     * Asserts that a condition is false. If it isn't it throws an {@link AssertionError} with the
+     * given message.
+     *
+     * @param message the identifying message for the {@link AssertionError} (<code>null</code>
+     *            okay)
+     * @param condition condition to be checked
+     */
+    public static void assertFalse(String message, boolean condition) {
+        assertTrue(!condition, message);
+    }
+
+    /**
+     * Asserts that a condition is false. If it isn't it throws an {@link AssertionError} without a
+     * message.
+     *
+     * @param condition condition to be checked
+     */
+    public static void assertFalse(boolean condition) {
+        assertTrue(!condition, null);
+    }
+
+    /**
+     * Asserts that a condition is true. If it isn't it throws an {@link AssertionError} with the
+     * given message.
+     *
+     * @param condition condition to be checked
+     * @param message the identifying message for the {@link AssertionError}
+     * @param objects arguments to the format string
+     */
+    public static void assertTrue(boolean condition, String message, Object... objects) {
+        if (!condition) {
+            fail(message, objects);
+        }
+    }
+
+    /**
+     * Asserts that a condition is false. If it isn't it throws an {@link AssertionError} with the
+     * given message produced by {@link String#format}.
+     *
+     * @param condition condition to be checked
+     * @param message the identifying message for the {@link AssertionError}
+     * @param objects arguments to the format string
+     */
+    public static void assertFalse(boolean condition, String message, Object... objects) {
+        assertTrue(!condition, message, objects);
+    }
+}