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_Float01 extends JTTTest { 33 34 public static float test(float arg) { 35 if (arg == 0) { 36 return add(arg + 10); 37 } 38 if (arg == 1) { 39 return sub(arg + 10); 40 } 41 if (arg == 2) { 42 return mul(arg + 10); 43 } 44 if (arg == 3) { 45 return div(arg + 10); 46 } 47 return 0; 48 } 49 50 public static float add(float x) { 51 float c = 1; 52 float t = x + c; 53 float u = x + c; 54 return t + u; 55 } 56 57 public static float sub(float x) { 58 float c = 1; 59 float t = x - c; 60 float u = x - c; 61 return t - u; 62 } 63 64 public static float mul(float x) { 65 float c = 1; 66 float t = x * c; 67 float u = x * c; 68 return t * u; 69 } 70 71 public static float div(float x) { 72 float c = 1; 73 float t = x / c; 74 float u = x / c; 75 return t / u; 76 } 77 78 @Test 79 public void run0() throws Throwable { 80 runTest("test", 0f); 81 } 82 83 @Test 84 public void run1() throws Throwable { 85 runTest("test", 1f); 86 } 87 88 @Test 89 public void run2() throws Throwable { 90 runTest("test", 2f); 91 } 92 93 @Test 94 public void run3() throws Throwable { 95 runTest("test", 3f); 96 } 97 98 }