/* * Copyright (c) 2017, 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 * @bug 8191915 * @summary Regression test for multiplyExact intrinsic * @library /test/lib / * @modules java.base/jdk.internal.misc * java.management * * @run main/othervm -Xcomp -XX:-TieredCompilation compiler.intrinsics.mathexact.LongMulOverflowTest */ package compiler.intrinsics.mathexact; public class LongMulOverflowTest { public static void main(String[] args) { LongMulOverflowTest test = new LongMulOverflowTest(); for (int i = 0; i < 10; ++i) { try { test.runTest(); throw new RuntimeException("Error, runTest() did not overflow!"); } catch (ArithmeticException e) { // success } try { test.runTestOverflow(); throw new RuntimeException("Error, runTestOverflow() did not overflow!"); } catch (ArithmeticException e) { // success } } } public void runTest() { java.lang.Math.multiplyExact(Long.MIN_VALUE, 7); } public void runTestOverflow() { java.lang.Math.multiplyExact((Long.MAX_VALUE / 2) + 1, 2); } }