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Quelle ClearArray.javaSprache: JAVA |
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/* * Copyright (c) 2022, 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 ClearArray.java * @bug 8284883 * @compile ClearArray.java * @summary ClearArray instruction overflows scratch buffer * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-TieredCompilation -Xbatch * -XX:InitArrayShortSize=32768 -XX:-IdealizeClearArrayNode compiler.c2.ClearArray * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+IgnoreUnrecognizedVMOptions - * -XX:InitArrayShortSize=32768 -XX:-IdealizeClearArrayNode -XX:UseAVX=3 compiler.c2. */ package compiler.c2; public class ClearArray { static long[] STATIC; static void foo() { STATIC = new long[2048 - 1]; } public static void main(String[] args) { for (int i = 0; i < 20_000; ++i) { foo(); } } }
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2026-06-09