1 /* 2 * Copyright (c) 2009, 2012, 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.jtt.optimize; 24 25 import org.junit.Test; 26 27 import org.graalvm.compiler.jtt.JTTTest; 28 29 /* 30 * Tests optimization of integer operations. 31 */ 32 public class Reduce_LongShift01 extends JTTTest { 33 34 public static long test(long arg) { 35 if (arg == 0) { 36 return shift0(arg + 10); 37 } 38 if (arg == 1) { 39 return shift1(arg + 10); 40 } 41 if (arg == 2) { 42 return shift2(arg + 10); 43 } 44 if (arg == 3) { 45 return shift3(arg + 10); 46 } 47 if (arg == 4) { 48 return shift4(arg + 10); 49 } 50 if (arg == 5) { 51 return shift5(arg + 10); 52 } 53 return 0; 54 } 55 56 public static long shift0(long x) { 57 return x >> 0; 58 } 59 60 public static long shift1(long x) { 61 return x >>> 0; 62 } 63 64 public static long shift2(long x) { 65 return x << 0; 66 } 67 68 public static long shift3(long x) { 69 return x >> 64; 70 } 71 72 public static long shift4(long x) { 73 return x >>> 64; 74 } 75 76 public static long shift5(long x) { 77 return x << 64; 78 } 79 80 @Test 81 public void run0() throws Throwable { 82 runTest("test", 0L); 83 } 84 85 @Test 86 public void run1() throws Throwable { 87 runTest("test", 1L); 88 } 89 90 @Test 91 public void run2() throws Throwable { 92 runTest("test", 2L); 93 } 94 95 @Test 96 public void run3() throws Throwable { 97 runTest("test", 3L); 98 } 99 100 @Test 101 public void run4() throws Throwable { 102 runTest("test", 4L); 103 } 104 105 @Test 106 public void run5() throws Throwable { 107 runTest("test", 5L); 108 } 109 110 }