| /* |
| * Copyright (c) 2021, 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 |
| * @bug 8257822 |
| * @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/TestDivZeroWithSplitIf::test |
| * -XX:+UnlockDiagnosticVMOptions -XX:+StressGCM compiler.loopopts.TestDivZeroWithSplitIf |
| * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileOnly=compiler/loopopts/TestDivZeroWithSplitIf::test |
| * -XX:+UnlockDiagnosticVMOptions -XX:+StressGCM compiler.loopopts.TestDivZeroWithSplitIf |
| */ |
| |
| package compiler.loopopts; |
| |
| public class TestDivZeroWithSplitIf { |
| public static int iArrFld[] = new int[10]; |
| |
| public static void test() { |
| int x = 20; |
| int y = 0; |
| int z = 10; |
| for (int i = 9; i < 99; i += 2) { |
| for (int j = 3; j < 100; j++) { |
| for (int k = 1; k < 2; k++) { |
| try { |
| x = (-65229 / y); // Division by zero |
| z = (iArrFld[5] / 8); // RangeCheckNode |
| } catch (ArithmeticException a_e) {} |
| try { |
| y = (-38077 / y); |
| z = (y / 9); |
| } catch (ArithmeticException a_e) {} |
| y = 8; |
| z += k; |
| } |
| } |
| } |
| } |
| public static void main(String[] strArr) { |
| for (int i = 0; i < 10; i++) { |
| test(); |
| } |
| } |
| } |
| |