1 /* 2 * Copyright (c) 2016, 2018, 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 24 25 package org.graalvm.compiler.asm.sparc.test; 26 27 import static org.junit.Assert.assertEquals; 28 import static org.junit.Assert.assertFalse; 29 import static org.junit.Assert.assertTrue; 30 31 import org.junit.Test; 32 33 import org.graalvm.compiler.asm.sparc.SPARCAssembler.BitSpec; 34 import org.graalvm.compiler.asm.sparc.SPARCAssembler.CompositeBitSpec; 35 import org.graalvm.compiler.asm.sparc.SPARCAssembler.ContinousBitSpec; 36 37 public class BitSpecTest { 38 39 private static final BitSpec d4hi = new ContinousBitSpec(23, 20, true, "d4hi"); 40 private static final BitSpec d4lo = new ContinousBitSpec(7, 4, false, "d4lo"); 41 private static final BitSpec d8 = new CompositeBitSpec(d4hi, d4lo); 42 43 @Test 44 public void testContinousSignExtend() { 45 testSetGet(d4hi, 0x00700000, 0x00000007); 46 testSetGet(d4hi, 0x00800000, 0xFFFFFFF8); 47 } 48 49 @Test 50 public void testContinousZeroExtend() { 51 testSetGet(d4lo, 0x000000F0, 0x0000000F); 52 testSetGet(d4lo, 0x00000070, 0x00000007); 53 } 54 55 public void testSetGet(BitSpec bs, int encoded, int decoded) { 56 assertTrue(bs.valueFits(decoded)); 57 assertEquals(encoded, bs.setBits(0, decoded)); 58 assertEquals(decoded, bs.getBits(encoded)); 59 } 60 61 @Test 62 public void testContinousSignExtendValueFits() { 63 assertFalse(d4hi.valueFits(0xf)); 64 assertFalse(d4hi.valueFits(0x10)); 65 assertFalse(d4hi.valueFits(0x17)); 66 } 67 68 @Test 69 public void testContinousZeroExtendValueFits() { 70 assertFalse(d4lo.valueFits(0x10)); 71 } 72 73 @Test(expected = AssertionError.class) 74 public void testContinousSignExtendSetFail1() { 75 d4hi.setBits(0, 0xf); 76 } 77 78 @Test(expected = AssertionError.class) 79 public void testContinousSignExtendSetFail2() { 80 d4hi.setBits(0, 0xFFFFFFF0); 81 } 82 83 @Test(expected = AssertionError.class) 84 public void testContinousZeroExtendSetFail1() { 85 d4lo.setBits(0, 0x10); 86 } 87 88 @Test 89 public void testCompositeSignExtended() { 90 testSetGet(d8, 0x00f000c0, 0xfffffffc); 91 testSetGet(d8, 0x008000c0, 0xffffff8c); 92 testSetGet(d8, 0x007000c0, 0x7c); 93 } 94 95 @Test(expected = AssertionError.class) 96 public void testCompositeSignExtendedFail1() { 97 d8.setBits(0, 0x00000080); 98 } 99 100 @Test(expected = AssertionError.class) 101 public void testCompositeSignExtendedFail2() { 102 d8.setBits(0, 0xEFFFFF80); 103 } 104 105 @Test 106 public void testCompositeValueFits() { 107 assertTrue(d8.valueFits(0xfffffffc)); 108 assertTrue(d8.valueFits(0xffffff8c)); 109 assertTrue(d8.valueFits(0x7c)); 110 assertFalse(d8.valueFits(0x8c)); 111 assertFalse(d8.valueFits(0xEFFFFF80)); 112 } 113 }