/* * Copyright (c) 2021, 2023, Oracle and/or its affiliates. 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 * @key stress randomness * @bug 8259227 * @summary Verify that zero check is executed before division/modulo operation. * @requires vm.compiler2.enabled * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileOnly=compiler.loopopts.TestDivZeroDominatedBy::test * -XX:+UnlockDiagnosticVMOptions -XX:+StressGCM -XX:StressSeed=917280111 compiler.loopopts.TestDivZeroDominatedBy * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileOnly=compiler.loopopts.TestDivZeroDominatedBy::test * -XX:+UnlockDiagnosticVMOptions -XX:+StressGCM compiler.loopopts.TestDivZeroDominatedBy */ package compiler.loopopts; public class TestDivZeroDominatedBy { public static int iFld = 1; public static int iFld1 = 2; public static int iFld2 = 3; public static int iArrFld[] = new int[10]; public static double dFld = 1.0; public static void test() { int x = 1; int y = 2; int z = 3; iFld = y; iArrFld[5] += iFld1; int i = 1; do { for (int j = 0; j < 10; j++) { iFld2 += iFld2; iFld1 = iFld2; int k = 1; do { iArrFld[k] = y; z = iFld2; dFld = x; try { y = iArrFld[k]; iArrFld[8] = 5; iFld = (100 / z); } catch (ArithmeticException a_e) {} } while (++k < 2); } } while (++i < 10); } public static void main(String[] strArr) { test(); } }