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 double operations.
  31  */
  32 public class Reduce_Double01 extends JTTTest {
  33 
  34     public static double test(double arg) {
  35         if (arg == 0) {
  36             return add(10);
  37         }
  38         if (arg == 1) {
  39             return sub(11);
  40         }
  41         if (arg == 2) {
  42             return mul(12);
  43         }
  44         if (arg == 3) {
  45             return div(13);
  46         }
  47         return 0;
  48     }
  49 
  50     public static double add(double x) {
  51         return x + 0;
  52     }
  53 
  54     public static double sub(double x) {
  55         return x - 0;
  56     }
  57 
  58     public static double mul(double x) {
  59         return x * 1;
  60     }
  61 
  62     public static double div(double x) {
  63         return x / 1;
  64     }
  65 
  66     @Test
  67     public void run0() throws Throwable {
  68         runTest("test", 0d);
  69     }
  70 
  71     @Test
  72     public void run1() throws Throwable {
  73         runTest("test", 1d);
  74     }
  75 
  76     @Test
  77     public void run2() throws Throwable {
  78         runTest("test", 2d);
  79     }
  80 
  81     @Test
  82     public void run3() throws Throwable {
  83         runTest("test", 3d);
  84     }
  85 
  86 }