| /* |
| * 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); |
| } |
| } |
| } |
