--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes.test/src/org/graalvm/compiler/nodes/test/ReinterpretStampTest.java	2017-02-15 17:06:28.146174445 -0800
@@ -0,0 +1,73 @@
+/*
+ * 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.nodes.test;
+
+import org.graalvm.compiler.nodes.calc.ReinterpretNode;
+
+/**
+ * Unit tests for the {@link ReinterpretNode#inferStamp} method.
+ */
+public class ReinterpretStampTest {
+
+    protected static final long[] interestingLongs = {
+                    // @formatter:off
+                    Long.MIN_VALUE,                                        // -0.0d
+                    Long.MIN_VALUE + 1,                                    // largest negative number
+                    Double.doubleToLongBits(-42.0),                        // random negative number
+                    Double.doubleToLongBits(Double.NEGATIVE_INFINITY) - 1, // smallest negative number
+                    Double.doubleToLongBits(Double.NEGATIVE_INFINITY),     // -Inf
+                    Double.doubleToLongBits(Double.NEGATIVE_INFINITY) + 1, // smallest negative NaN
+                    -42,                                                   // random negative NaN
+                    -1,                                                    // largest negative NaN
+                    0,                                                     // 0.0d
+                    1,                                                     // smallest positive number
+                    Double.doubleToLongBits(42.0),                         // random positive number
+                    Double.doubleToLongBits(Double.POSITIVE_INFINITY) - 1, // largest positive number
+                    Double.doubleToLongBits(Double.POSITIVE_INFINITY),     // +Inf
+                    Double.doubleToLongBits(Double.POSITIVE_INFINITY) + 1, // smallest positive NaN
+                    Long.MAX_VALUE - 42,                                   // random positive NaN
+                    Long.MAX_VALUE,                                        // largest positive NaN
+                    // @formatter:on
+    };
+
+    protected static final int[] interestingInts = {
+                    // @formatter:off
+                    Integer.MIN_VALUE,                                 // -0.0f
+                    Integer.MIN_VALUE + 1,                             // largest negative number
+                    Float.floatToIntBits(-42.0f),                      // random negative number
+                    Float.floatToIntBits(Float.NEGATIVE_INFINITY) - 1, // smallest negative number
+                    Float.floatToIntBits(Float.NEGATIVE_INFINITY),     // -Inf
+                    Float.floatToIntBits(Float.NEGATIVE_INFINITY) + 1, // smallest negative NaN
+                    -42,                                               // random negative NaN
+                    -1,                                                // largest negative NaN
+                    0,                                                 // 0.0f
+                    1,                                                 // smallest positive number
+                    Float.floatToIntBits(42.0f),                       // random positive number
+                    Float.floatToIntBits(Float.POSITIVE_INFINITY) - 1, // largest positive number
+                    Float.floatToIntBits(Float.POSITIVE_INFINITY),     // +Inf
+                    Float.floatToIntBits(Float.POSITIVE_INFINITY) + 1, // smallest positive NaN
+                    Integer.MAX_VALUE - 42,                            // random positive NaN
+                    Integer.MAX_VALUE,                                 // largest positive NaN
+                    // @formatter:on
+    };
+}