1 /* 2 * Copyright (c) 2016, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.asm.sparc.test; 24 25 import static org.junit.Assert.assertEquals; 26 import static org.junit.Assert.assertFalse; 27 import static org.junit.Assert.assertTrue; 28 29 import org.junit.Test; 30 31 import org.graalvm.compiler.asm.sparc.SPARCAssembler.BitSpec; 32 import org.graalvm.compiler.asm.sparc.SPARCAssembler.CompositeBitSpec; 33 import org.graalvm.compiler.asm.sparc.SPARCAssembler.ContinousBitSpec; 34 35 public class BitSpecTest { 36 37 private static final BitSpec d4hi = new ContinousBitSpec(23, 20, true, "d4hi"); 38 private static final BitSpec d4lo = new ContinousBitSpec(7, 4, false, "d4lo"); 39 private static final BitSpec d8 = new CompositeBitSpec(d4hi, d4lo); 40 41 @Test 42 public void testContinousSignExtend() { 43 testSetGet(d4hi, 0x00700000, 0x00000007); 44 testSetGet(d4hi, 0x00800000, 0xFFFFFFF8); 45 } 46 47 @Test 48 public void testContinousZeroExtend() { 49 testSetGet(d4lo, 0x000000F0, 0x0000000F); 50 testSetGet(d4lo, 0x00000070, 0x00000007); 51 } 52 53 public void testSetGet(BitSpec bs, int encoded, int decoded) { 54 assertTrue(bs.valueFits(decoded)); 55 assertEquals(encoded, bs.setBits(0, decoded)); 56 assertEquals(decoded, bs.getBits(encoded)); 57 } 58 59 @Test 60 public void testContinousSignExtendValueFits() { 61 assertFalse(d4hi.valueFits(0xf)); 62 assertFalse(d4hi.valueFits(0x10)); 63 assertFalse(d4hi.valueFits(0x17)); 64 } 65 66 @Test 67 public void testContinousZeroExtendValueFits() { 68 assertFalse(d4lo.valueFits(0x10)); 69 } 70 71 @Test(expected = AssertionError.class) 72 public void testContinousSignExtendSetFail1() { 73 d4hi.setBits(0, 0xf); 74 } 75 76 @Test(expected = AssertionError.class) 77 public void testContinousSignExtendSetFail2() { 78 d4hi.setBits(0, 0xFFFFFFF0); 79 } 80 81 @Test(expected = AssertionError.class) 82 public void testContinousZeroExtendSetFail1() { 83 d4lo.setBits(0, 0x10); 84 } 85 86 @Test 87 public void testCompositeSignExtended() { 88 testSetGet(d8, 0x00f000c0, 0xfffffffc); 89 testSetGet(d8, 0x008000c0, 0xffffff8c); 90 testSetGet(d8, 0x007000c0, 0x7c); 91 } 92 93 @Test(expected = AssertionError.class) 94 public void testCompositeSignExtendedFail1() { 95 d8.setBits(0, 0x00000080); 96 } 97 98 @Test(expected = AssertionError.class) 99 public void testCompositeSignExtendedFail2() { 100 d8.setBits(0, 0xEFFFFF80); 101 } 102 103 @Test 104 public void testCompositeValueFits() { 105 assertTrue(d8.valueFits(0xfffffffc)); 106 assertTrue(d8.valueFits(0xffffff8c)); 107 assertTrue(d8.valueFits(0x7c)); 108 assertFalse(d8.valueFits(0x8c)); 109 assertFalse(d8.valueFits(0xEFFFFF80)); 110 } 111 }