Mercurial > hg > icedtea8-forest > hotspot
view test/compiler/intrinsics/mathexact/LongMulOverflowTest.java @ 10928:85c5bc8157df jdk8u292-b08
8191915: JCK tests produce incorrect results with C2
Reviewed-by: thartmann, vlivanov, goetz, andrew
author | rbackman |
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date | Thu, 18 Jan 2018 19:21:11 +0100 |
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/* * Copyright (c) 2018, 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 * @compile LongMulOverflowTest.java * @run main/othervm -Xcomp -XX:-TieredCompilation LongMulOverflowTest */ 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); } }