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 }