1 /* 2 * Copyright (c) 2019, 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 * @bug 8219807 27 * @summary Test IfNode::up_one_dom() with dead regions. 28 * @compile -XDstringConcat=inline TestIfWithDeadRegion.java 29 * @run main/othervm -XX:CompileCommand=compileonly,compiler.c2.TestIfWithDeadRegion::test 30 * compiler.c2.TestIfWithDeadRegion 31 */ 32 33 package compiler.c2; 34 35 import java.util.function.Supplier; 36 37 public class TestIfWithDeadRegion { 38 39 static String msg; 40 getString(String s, int i)41 static String getString(String s, int i) { 42 String current = s + String.valueOf(i); 43 System.nanoTime(); 44 return current; 45 } 46 test(Supplier<String> supplier)47 static void test(Supplier<String> supplier) { 48 msg = supplier.get(); 49 } 50 main(String[] args)51 public static void main(String[] args) { 52 for (int i = 0; i < 20_000; ++i) { 53 test(() -> getString("Test1", 42)); 54 test(() -> getString("Test2", 42)); 55 } 56 } 57 } 58