1 /*
   2  * Copyright (c) 2007, 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.bytecode;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.jtt.JTTTest;
  28 
  29 /*
  30  */
  31 public class BC_irem extends JTTTest {
  32 
  33     public static int test(int a, int b) {
  34         return a % b;
  35     }
  36 
  37     // Left as constant
  38     public static int test2(int b) {
  39         return 13 % b;
  40     }
  41 
  42     // Right as constant
  43     public static int test3(int a) {
  44         return a % 13;
  45     }
  46 
  47     // Tests if the zero extension works fine with 64 bit registers behind
  48     public static long test4(int a, int b) {
  49         int ra = Math.abs(a % b);
  50         int rb = Math.abs(a) % b;
  51         return ra << 32 | rb;
  52     }
  53 
  54     // Test if sign extension works on architectures with 64 bit registers only
  55     public static int test5(int a, int b) {
  56         return (a + 0xFF) % (b + 0xFF);
  57     }
  58 
  59     // Test if sign extension works on architectures with 64 bit registers only
  60     public static int test6(int a, int b) {
  61         return (a - 0xFF) % (b - 0xFF);
  62     }
  63 
  64     @Test
  65     public void run0() throws Throwable {
  66         runTest("test", 1, 2);
  67     }
  68 
  69     @Test
  70     public void run1() throws Throwable {
  71         runTest("test", 2, -1);
  72     }
  73 
  74     @Test
  75     public void run2() throws Throwable {
  76         runTest("test", 256, 4);
  77     }
  78 
  79     @Test
  80     public void run3() throws Throwable {
  81         runTest("test", 135, 7);
  82     }
  83 
  84     @Test
  85     public void run20() throws Throwable {
  86         runTest("test2", 2);
  87     }
  88 
  89     @Test
  90     public void run21() throws Throwable {
  91         runTest("test2", 20000000);
  92     }
  93 
  94     @Test
  95     public void run22() throws Throwable {
  96         runTest("test2", -20000000);
  97     }
  98 
  99     @Test
 100     public void run30() throws Throwable {
 101         runTest("test3", 2);
 102     }
 103 
 104     @Test
 105     public void run31() throws Throwable {
 106         runTest("test3", 200000000);
 107     }
 108 
 109     @Test
 110     public void run32() throws Throwable {
 111         runTest("test3", -200000000);
 112     }
 113 
 114     @Test
 115     public void run41() throws Throwable {
 116         runTest("test4", -100000, 3000000);
 117     }
 118 
 119     @Test
 120     public void run42() throws Throwable {
 121         runTest("test4", -100000, 30);
 122     }
 123 
 124     @Test
 125     public void run43() throws Throwable {
 126         runTest("test4", -1000000, -30);
 127     }
 128 
 129     @Test
 130     public void run51() {
 131         runTest("test5", Integer.MAX_VALUE, Integer.MAX_VALUE);
 132     }
 133 
 134     @Test
 135     public void run61() {
 136         runTest("test6", Integer.MIN_VALUE, Integer.MIN_VALUE);
 137     }
 138 }