1 /*
 2  * Copyright (c) 2025, 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 
24  /*
25  * @test
26  * @library /test/lib /
27  * @bug 8359200
28  * @key randomness
29  * @requires vm.flagless & vm.compiler2.enabled & vm.debug == true
30  * @summary Test that -XX:OptoNodeListSize does not crash the VM.
31  * @run driver compiler.arguments.TestOptoNodeListSize
32  */
33 
34 package compiler.arguments;
35 
36 import java.io.IOException;
37 import java.util.Random;
38 
39 import jdk.test.lib.process.ProcessTools;
40 import jdk.test.lib.process.OutputAnalyzer;
41 import jdk.test.lib.Utils;
42 
43 public class TestOptoNodeListSize {
44     private static final Random RANDOM = Utils.getRandomInstance();
45 
46     public static void main(String[] args) throws IOException {
47         if (args.length == 0) {
48             int size = RANDOM.nextInt(1000) + 1;
49             ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder("-XX:OptoNodeListSize=" + size,
50                 "-Xcomp", "-XX:-TieredCompilation", "compiler.arguments.TestOptoNodeListSize", "run");
51             OutputAnalyzer output = new OutputAnalyzer(pb.start());
52             output.shouldHaveExitValue(0);
53         } else {
54             System.out.println("Test passed.");
55         }
56     }
57 }