| /* |
| * Copyright (c) 2023, 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 8303511 |
| * @summary C2: assert(get_ctrl(n) == cle_out) during unrolling |
| * @requires vm.gc.Parallel |
| * @run main/othervm -XX:-BackgroundCompilation -XX:+UseParallelGC TestAddPAtOuterLoopHead |
| */ |
| |
| |
| import java.util.Arrays; |
| |
| public class TestAddPAtOuterLoopHead { |
| public static void main(String[] args) { |
| boolean[] flags1 = new boolean[1000]; |
| boolean[] flags2 = new boolean[1000]; |
| Arrays.fill(flags2, true); |
| for (int i = 0; i < 20_000; i++) { |
| testHelper(42, 42, 43); |
| test(flags1); |
| test(flags2); |
| } |
| } |
| |
| private static int test(boolean[] flags) { |
| int[] array = new int[1000]; |
| |
| int k; |
| for (k = 0; k < 10; k++) { |
| for (int i = 0; i < 2; i++) { |
| } |
| } |
| k = k / 10; |
| int m; |
| for (m = 0; m < 2; m++) { |
| for (int i = 0; i < 2; i++) { |
| for (int j = 0; j < 2; j++) { |
| } |
| } |
| } |
| |
| |
| int v = 0; |
| for (int j = 0; j < 2; j++) { |
| for (int i = 0; i < 998; i += k) { |
| int l = testHelper(m, j, i); |
| v = array[i + l]; |
| if (flags[i]) { |
| return v; |
| } |
| } |
| } |
| |
| return v; |
| } |
| |
| private static int testHelper(int m, int j, int i) { |
| return m == 2 ? j : i; |
| } |
| } |
