81 lines
2.3 KiB
Java
81 lines
2.3 KiB
Java
/*
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* Copyright (c) 2023, 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 8303564
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* @summary C2: "Bad graph detected in build_loop_late" after a CMove is wrongly split thru phi
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* @run main/othervm -XX:-BackgroundCompilation TestWrongCMovSplitIf
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*/
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public class TestWrongCMovSplitIf {
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private static int[] field1 = new int[1];
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private static int field3;
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public static void main(String[] args) {
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for (int i = 0; i < 20_000; i++) {
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test(true);
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test(false);
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testHelper(1000, false);
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}
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}
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private static void test(boolean flag) {
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int i;
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for (i = 0; i < 2; i++) {
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for (int j = 0; j < 10; j++) {
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for (int k = 0; k < 10; k++) {
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}
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}
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}
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field3 = testHelper(i, flag);
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for (int j = 0; j < 10; j++) {
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for (int k = 0; k < 10; k++) {
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for (int l = 0; l < 10; l++) {
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for (int m = 0; m < 10; m++) {
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}
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}
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}
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}
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}
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private static int testHelper(int i, boolean flag) {
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int stop = 1000;
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if (i == 2) {
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if (flag) {
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stop = 2;
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} else {
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stop = 1;
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}
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}
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int f = 0;
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for (int j = 0; j < stop; j++) {
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f += field1[0];
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}
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return f;
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}
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}
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