/* * Copyright (c) 2015, 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 8134321 * @summary Code that capture field values of eliminated allocation at a safepoint when there's an arraycopy behind a Phi is broken * * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement * compiler.arraycopy.TestEliminatedArrayCopyPhi */ package compiler.arraycopy; public class TestEliminatedArrayCopyPhi { static int[] escaped; static void test(int[] src, boolean flag1, boolean flag2) { int[] array = new int[10]; if (flag1) { System.arraycopy(src, 0, array, 0, src.length); } else { } if (flag2) { // never taken escaped = array; } } public static void main(String[] args) { int[] src = new int[10]; for (int i = 0; i < 20000; i++) { test(src, (i % 2) == 0, false); } } }