| /* |
| * Copyright (c) 2019, 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 8231223 |
| * @summary Test conditional move optimization encountering an Opaque4Node. |
| * @run main/othervm -Xbatch -XX:-TieredCompilation |
| * -XX:CompileCommand=inline,compiler.loopopts.TestCMovWithOpaque::test |
| * compiler.loopopts.TestCMovWithOpaque |
| */ |
| |
| package compiler.loopopts; |
| |
| public class TestCMovWithOpaque { |
| |
| public static void test(int array[]) { |
| for (int i = 1; i < 8; i += 3) { |
| for (int j = 0; j < 4; ++j) { |
| switch (i % 4) { |
| case 0: |
| break; |
| case 1: |
| break; |
| case 2: |
| break; |
| case 3: |
| array[j] += 42; |
| break; |
| } |
| } |
| } |
| } |
| |
| public static void main(String[] args) { |
| int[] array = new int[4]; |
| for (int i = 0; i < 20_000; ++i) { |
| test(array); |
| } |
| } |
| } |
