--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.asm.sparc.test/src/org/graalvm/compiler/asm/sparc/test/BitSpecTest.java	2016-12-09 00:46:47.679189350 -0800
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2016, 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.asm.sparc.test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+import org.graalvm.compiler.asm.sparc.SPARCAssembler.BitSpec;
+import org.graalvm.compiler.asm.sparc.SPARCAssembler.CompositeBitSpec;
+import org.graalvm.compiler.asm.sparc.SPARCAssembler.ContinousBitSpec;
+
+public class BitSpecTest {
+
+    private static final BitSpec d4hi = new ContinousBitSpec(23, 20, true, "d4hi");
+    private static final BitSpec d4lo = new ContinousBitSpec(7, 4, false, "d4lo");
+    private static final BitSpec d8 = new CompositeBitSpec(d4hi, d4lo);
+
+    @Test
+    public void testContinousSignExtend() {
+        testSetGet(d4hi, 0x00700000, 0x00000007);
+        testSetGet(d4hi, 0x00800000, 0xFFFFFFF8);
+    }
+
+    @Test
+    public void testContinousZeroExtend() {
+        testSetGet(d4lo, 0x000000F0, 0x0000000F);
+        testSetGet(d4lo, 0x00000070, 0x00000007);
+    }
+
+    public void testSetGet(BitSpec bs, int encoded, int decoded) {
+        assertTrue(bs.valueFits(decoded));
+        assertEquals(encoded, bs.setBits(0, decoded));
+        assertEquals(decoded, bs.getBits(encoded));
+    }
+
+    @Test
+    public void testContinousSignExtendValueFits() {
+        assertFalse(d4hi.valueFits(0xf));
+        assertFalse(d4hi.valueFits(0x10));
+        assertFalse(d4hi.valueFits(0x17));
+    }
+
+    @Test
+    public void testContinousZeroExtendValueFits() {
+        assertFalse(d4lo.valueFits(0x10));
+    }
+
+    @Test(expected = AssertionError.class)
+    public void testContinousSignExtendSetFail1() {
+        d4hi.setBits(0, 0xf);
+    }
+
+    @Test(expected = AssertionError.class)
+    public void testContinousSignExtendSetFail2() {
+        d4hi.setBits(0, 0xFFFFFFF0);
+    }
+
+    @Test(expected = AssertionError.class)
+    public void testContinousZeroExtendSetFail1() {
+        d4lo.setBits(0, 0x10);
+    }
+
+    @Test
+    public void testCompositeSignExtended() {
+        testSetGet(d8, 0x00f000c0, 0xfffffffc);
+        testSetGet(d8, 0x008000c0, 0xffffff8c);
+        testSetGet(d8, 0x007000c0, 0x7c);
+    }
+
+    @Test(expected = AssertionError.class)
+    public void testCompositeSignExtendedFail1() {
+        d8.setBits(0, 0x00000080);
+    }
+
+    @Test(expected = AssertionError.class)
+    public void testCompositeSignExtendedFail2() {
+        d8.setBits(0, 0xEFFFFF80);
+    }
+
+    @Test
+    public void testCompositeValueFits() {
+        assertTrue(d8.valueFits(0xfffffffc));
+        assertTrue(d8.valueFits(0xffffff8c));
+        assertTrue(d8.valueFits(0x7c));
+        assertFalse(d8.valueFits(0x8c));
+        assertFalse(d8.valueFits(0xEFFFFF80));
+    }
+}