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 value numbering of integer operations.
  31  */
  32 public class VN_Int01 extends JTTTest {
  33 
  34     public static int test(int arg) {
  35         if (arg == 0) {
  36             return add(arg);
  37         }
  38         if (arg == 1) {
  39             return sub(arg);
  40         }
  41         if (arg == 2) {
  42             return mul(arg);
  43         }
  44         if (arg == 3) {
  45             return div(arg);
  46         }
  47         if (arg == 4) {
  48             return mod(arg);
  49         }
  50         if (arg == 5) {
  51             return and(arg);
  52         }
  53         if (arg == 6) {
  54             return or(arg);
  55         }
  56         if (arg == 7) {
  57             return xor(arg);
  58         }
  59         return 0;
  60     }
  61 
  62     public static int add(int x) {
  63         int c = 3;
  64         int t = x + c;
  65         int u = x + c;
  66         return t + u;
  67     }
  68 
  69     public static int sub(int x) {
  70         int c = 3;
  71         int t = x - c;
  72         int u = x - c;
  73         return t - u;
  74     }
  75 
  76     public static int mul(int x) {
  77         int i = 3;
  78         int t = x * i;
  79         int u = x * i;
  80         return t * u;
  81     }
  82 
  83     public static int div(int x) {
  84         int i = 9;
  85         int t = i / x;
  86         int u = i / x;
  87         return t / u;
  88     }
  89 
  90     public static int mod(int x) {
  91         int i = 7;
  92         int t = i % x;
  93         int u = i % x;
  94         return t % u;
  95     }
  96 
  97     public static int and(int x) {
  98         int i = 7;
  99         int t = i & x;
 100         int u = i & x;
 101         return t & u;
 102     }
 103 
 104     public static int or(int x) {
 105         int i = 7;
 106         int t = i | x;
 107         int u = i | x;
 108         return t | u;
 109     }
 110 
 111     public static int xor(int x) {
 112         int i = 7;
 113         int t = i ^ x;
 114         int u = i ^ x;
 115         return t ^ u;
 116     }
 117 
 118     @Test
 119     public void run0() throws Throwable {
 120         runTest("test", 0);
 121     }
 122 
 123     @Test
 124     public void run1() throws Throwable {
 125         runTest("test", 1);
 126     }
 127 
 128     @Test
 129     public void run2() throws Throwable {
 130         runTest("test", 2);
 131     }
 132 
 133     @Test
 134     public void run3() throws Throwable {
 135         runTest("test", 3);
 136     }
 137 
 138     @Test
 139     public void run4() throws Throwable {
 140         runTest("test", 4);
 141     }
 142 
 143     @Test
 144     public void run5() throws Throwable {
 145         runTest("test", 5);
 146     }
 147 
 148     @Test
 149     public void run6() throws Throwable {
 150         runTest("test", 6);
 151     }
 152 
 153     @Test
 154     public void run7() throws Throwable {
 155         runTest("test", 7);
 156     }
 157 
 158 }