/* * Copyright (c) 2023, 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 8305324 * @summary C2: Wrong execution of vectorizing Interger.reverseBytes * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileCommand=compileonly,compiler.vectorization.TestNarrowedIntegerReverseBytes::* compiler.vectorization.TestNarrowedIntegerReverseBytes */ package compiler.vectorization; public class TestNarrowedIntegerReverseBytes { static final int LEN = 33; static byte byteArray[] = new byte[LEN]; static void test() { for (int i = 0; i < LEN; i++) { byteArray[i] = (byte) Integer.reverseBytes(i); } } public static void main(String[] strArr) { for (int i = 0; i < 2; i++) { test(); } for (int i = 0; i < byteArray.length; i++) { if (byteArray[i] != 0) { System.err.println("FAILED: all the elements should be zero"); System.exit(1); } } System.out.println("PASSED"); } }