1 /*
   2  * Copyright (c) 2012, 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 // Checkstyle: stop
  24 package org.graalvm.compiler.jtt.loop;
  25 
  26 import org.junit.Test;
  27 
  28 import org.graalvm.compiler.jtt.JTTTest;
  29 
  30 /*
  31  * Test around an object that escapes directly from inside a loop (no virtual phi on the loop)
  32  */
  33 public class LoopEscape extends JTTTest {
  34 
  35     public static L ll = new L(0, 1, 2);
  36 
  37     private static class L {
  38 
  39         public int a;
  40         public int b;
  41         public int c;
  42 
  43         public L(int a, int b, int c) {
  44             this.a = a;
  45             this.b = b;
  46             this.c = c;
  47         }
  48     }
  49 
  50     public static int test0(int count) {
  51         L l = new L(5, 5, 5);
  52         for (int i = 0; i < count; i++) {
  53             l.a++;
  54             l.b--;
  55             l.c = 4;
  56         }
  57 
  58         return l.a + l.b * 10 + l.c * 100;
  59     }
  60 
  61     public static int test1(int count) {
  62         L l = new L(5, 5, 5);
  63         for (int i = 0; i < count; i++) {
  64             if (l.a % 2 == 0) {
  65                 l.a++;
  66                 l.b--;
  67                 l.c = 4;
  68             } else {
  69                 l.a++;
  70             }
  71         }
  72 
  73         return l.a + l.b * 10 + l.c * 100;
  74     }
  75 
  76     @Test
  77     public void run10() throws Throwable {
  78         runTest("test1", 0);
  79     }
  80 
  81     @Test
  82     public void run11() throws Throwable {
  83         runTest("test1", 1);
  84     }
  85 
  86     @Test
  87     public void run12() throws Throwable {
  88         runTest("test1", 2);
  89     }
  90 
  91     @Test
  92     public void run00() throws Throwable {
  93         runTest("test0", 0);
  94     }
  95 
  96     @Test
  97     public void run01() throws Throwable {
  98         runTest("test0", 1);
  99     }
 100 
 101     @Test
 102     public void run02() throws Throwable {
 103         runTest("test0", 2);
 104     }
 105 
 106     @Test
 107     public void run05() throws Throwable {
 108         runTest("test0", 5);
 109     }
 110 }