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 float operations. 31 */ 32 public class VN_Float02 extends JTTTest { 33 34 private static boolean cond = true; 35 36 public static float test(float arg) { 37 if (arg == 0) { 38 return add(arg + 10); 39 } 40 if (arg == 1) { 41 return sub(arg + 10); 42 } 43 if (arg == 2) { 44 return mul(arg + 10); 45 } 46 if (arg == 3) { 47 return div(arg + 10); 48 } 49 return 0; 50 } 51 52 public static float add(float x) { 53 float c = 1.0f; 54 float t = x + c; 55 if (cond) { 56 float u = x + c; 57 return t + u; 58 } 59 return 1.0f; 60 } 61 62 public static float sub(float x) { 63 float c = 1.0f; 64 float t = x - c; 65 if (cond) { 66 float u = x - c; 67 return t - u; 68 } 69 return 1.0f; 70 } 71 72 public static float mul(float x) { 73 float c = 1.0f; 74 float t = x * c; 75 if (cond) { 76 float u = x * c; 77 return t * u; 78 } 79 return 1.0f; 80 } 81 82 public static float div(float x) { 83 float c = 1.0f; 84 float t = x / c; 85 if (cond) { 86 float u = x / c; 87 return t / u; 88 } 89 return 1.0f; 90 } 91 92 @Test 93 public void run0() throws Throwable { 94 runTest("test", 0f); 95 } 96 97 @Test 98 public void run1() throws Throwable { 99 runTest("test", 1f); 100 } 101 102 @Test 103 public void run2() throws Throwable { 104 runTest("test", 2f); 105 } 106 107 @Test 108 public void run3() throws Throwable { 109 runTest("test", 3f); 110 } 111 112 }