70 lines
2.4 KiB
Java
70 lines
2.4 KiB
Java
/*
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* Copyright (c) 2024, Red Hat, Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8308660
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* @summary C2 compilation hits 'node must be dead' assert
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* @requires vm.compiler2.enabled
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* @run main/othervm -XX:-BackgroundCompilation -XX:-TieredCompilation -XX:-UseOnStackReplacement
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* -XX:+UnlockDiagnosticVMOptions -XX:+StressIGVN -XX:StressSeed=242006623 TestFoldIfRemovesTopNode
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* @run main/othervm -XX:-BackgroundCompilation -XX:-TieredCompilation -XX:-UseOnStackReplacement
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* -XX:+UnlockDiagnosticVMOptions -XX:+StressIGVN TestFoldIfRemovesTopNode
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*
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*/
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public class TestFoldIfRemovesTopNode {
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public static void main(String[] args) {
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int[] array = new int[100];
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for (int i = 0; i < 20_000; i++) {
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test(false, true, 0, array);
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test(false, false, 0, array);
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testHelper2(false, false, 0, array);
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testHelper(0, true, array);
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}
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}
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private static void test(boolean flag, boolean flag2, int k, int[] array) {
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if (flag2) {
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testHelper2(flag, flag2, k, array);
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}
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}
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private static void testHelper2(boolean flag, boolean flag2, int k, int[] array) {
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if (flag2) {
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k = -1;
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}
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testHelper(k, flag, array);
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}
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private static void testHelper(int k, boolean flag, int[] array) {
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if (flag) {
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k = new int[k].length;
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int j = k + 3;
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if (j >= 0 && j <= array.length) {
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}
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}
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}
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}
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