68 lines
2.1 KiB
Java
68 lines
2.1 KiB
Java
/*
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* Copyright (c) 2022, Arm Limited. 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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* @key stress randomness
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* @bug 8291466
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* @summary Infinite loop in PhaseIterGVN::transform_old with -XX:+StressIGVN
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* @requires vm.compiler2.enabled
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* @run main/othervm -Xbatch -XX:-TieredCompilation
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* -XX:+UnlockDiagnosticVMOptions -XX:+StressIGVN
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* -XX:StressSeed=1 compiler.c2.TestMulNodeInfiniteGVN
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*/
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package compiler.c2;
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public class TestMulNodeInfiniteGVN {
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private static int fun() {
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int sum = 0;
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for (int c = 0; c < 50000; c++) {
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int x = 9;
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while ((x += 2) < 12) {
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for (int k = 1; k < 2; k++) {
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sum += x * k;
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}
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}
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int y = 11;
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while ((y += 2) < 14) {
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for (int k = 1; k < 2; k++) {
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sum += y * k;
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}
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}
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int z = 17;
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while ((z += 2) < 20) {
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for (int k = 1; k < 2; k++) {
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sum += z * k;
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}
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}
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}
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return sum;
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}
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public static void main(String[] args) {
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fun();
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}
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}
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