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