/* * Copyright (c) 2024, 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 * @key stress randomness * @bug 8329258 * @summary Test correct execution of the tail call at the end of the arraycopy stub. * @requires vm.compiler2.enabled * @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xbatch -XX:-TieredCompilation * -XX:+StressGCM -XX:+StressLCM * -XX:CompileCommand=quiet -XX:CompileCommand=compileonly,*::test * compiler.arraycopy.TestTailCallInArrayCopyStub * @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xbatch -XX:-TieredCompilation * -XX:+StressGCM -XX:+StressLCM -XX:StressSeed=75451718 * -XX:CompileCommand=quiet -XX:CompileCommand=compileonly,*::test * compiler.arraycopy.TestTailCallInArrayCopyStub */ package compiler.arraycopy; public class TestTailCallInArrayCopyStub { public static void test(byte[] src, byte[] dst) { try { System.arraycopy(src, -1, dst, 0, src.length); } catch (Exception e) { // Expected } } public static void main(String[] args) { byte[] array = new byte[5]; for (int i = 0; i < 10_000; ++i) { test(array, array); } } }