| /* |
| * Copyright (c) 2018, Red Hat, Inc. 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 8200282 |
| * @summary arraycopy converted as a series of loads/stores uses wrong slice for loads |
| * |
| * @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:CompileCommand=dontinline,ACasLoadsStoresBadMem::not_inlined ACasLoadsStoresBadMem |
| * |
| */ |
| |
| public class ACasLoadsStoresBadMem { |
| public static void main(String[] args) { |
| int[] dst = new int[5]; |
| for (int i = 0; i < 20_000; i++) { |
| test1(dst, 1); |
| for (int j = 1; j < 5; j++) { |
| if (dst[j] != j) { |
| throw new RuntimeException("Bad copy "); |
| } |
| } |
| } |
| } |
| |
| private static void test1(int[] dst, int dstPos) { |
| int[] src = new int[4]; |
| not_inlined(); |
| src[0] = 1; |
| src[1] = 2; |
| src[2] = 3; |
| src[3] = 4; |
| System.arraycopy(src, 0, dst, dstPos, 4); |
| } |
| |
| private static void not_inlined() { |
| } |
| } |
