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  * Test case for null check elimination.
  31  */
  32 public class NCE_04 extends JTTTest {
  33 
  34     public static class TestClass {
  35         int field1;
  36         int field2 = 23;
  37     }
  38 
  39     private static boolean cond = true;
  40     public static TestClass object = new TestClass();
  41 
  42     public static int test() {
  43         TestClass o = object;
  44         if (cond) {
  45             o.field1 = 22;
  46         } else {
  47             o.field1 = 11;
  48         }
  49         // expect non-null
  50         return o.field2;
  51     }
  52 
  53     @Test
  54     public void run0() throws Throwable {
  55         runTest("test");
  56     }
  57 
  58 }