1 /*
   2  * Copyright (c) 2015, 2015, 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.micro;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.jtt.JTTTest;
  28 
  29 public class ConstantLoadTest extends JTTTest {
  30 
  31     private static final class MyClass {
  32         public long a;
  33         public long b;
  34 
  35         MyClass(long a, long b) {
  36             this.a = a;
  37             this.b = b;
  38         }
  39     }
  40 
  41     private static final MyClass myClass = new MyClass(Long.MIN_VALUE, Long.MAX_VALUE);
  42     private static final long myLong = Long.MAX_VALUE;
  43 
  44     public static long test(int arg) {
  45         if (arg == 0) {
  46             return myClass.a / arg + myLong;
  47         }
  48         if (arg == 1) {
  49             return myClass.b - arg + myLong;
  50         }
  51         long r = 1;
  52         for (int i = 0; i < arg; i++) {
  53             r *= i;
  54         }
  55         return r;
  56     }
  57 
  58     @Test
  59     public void run0() throws Throwable {
  60         runTest("test", 0);
  61     }
  62 
  63     @Test
  64     public void run1() throws Throwable {
  65         runTest("test", -1);
  66     }
  67 
  68     @Test
  69     public void run2() throws Throwable {
  70         runTest("test", 1);
  71     }
  72 
  73     @Test
  74     public void run3() throws Throwable {
  75         runTest("test", 2);
  76     }
  77 
  78 }