/* * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8244719 * @summary Tests custom bytecode with an explicit entry (fall through or jump) to an exception block which was unexpected for C2 parsing. * * @compile TestExceptionBlockWithPredecessors.jasm * @run main/othervm -Xbatch -XX:CompileCommand=dontinline,compiler.parsing.TestExceptionBlockWithPredecessors::* * compiler.parsing.TestExceptionBlockWithPredecessorsMain */ package compiler.parsing; public class TestExceptionBlockWithPredecessorsMain { public static void main(String[] args) { TestExceptionBlockWithPredecessors t = new TestExceptionBlockWithPredecessors(); for (int i = 0; i < 10000; i++) { t.loopCounter = (i % 2 == 0) ? 0 : 10; t.switchOn = (i % 2 == 0) ? 2 : 3; t.test(); // Triggers assertion failure t.testWorksWithoutPreds(); // Works since no predecessors for exception handler } } }