/* * Copyright (c) 2025, 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 8366888 * @summary C2: incorrect assertion predicate with short running long counted loop * * @run main/othervm -XX:CompileOnly=TestShortCountedLoopWithLongRCBadAssertPredicate2::test -Xbatch TestShortCountedLoopWithLongRCBadAssertPredicate2 * @run main/othervm TestShortCountedLoopWithLongRCBadAssertPredicate2 */ import java.lang.foreign.MemorySegment; import java.lang.foreign.ValueLayout; public class TestShortCountedLoopWithLongRCBadAssertPredicate2 { private static MemorySegment ms = MemorySegment.ofArray(new byte[80000]); private static final ValueLayout.OfByte BYTE = ValueLayout.JAVA_BYTE; static byte[] bArr = new byte[80000]; public static void main(String[] args) { for (int i = 0; i < 10000; i++) { test(i); } } public static void test(int start) { int end = start + 100; int i = 0; while (start < end) { bArr[i++] = ms.get(BYTE, start++); } } }