Mercurial > hg > truffle
view test/compiler/codegen/C1NullCheckOfNullStore.java @ 20907:06b0a2fb20a1
Truffle/Tools: the coverage tool will now ignore counts for any sources holding the tag CoverageTracker.Tags.NO_COVERAGE.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Mon, 13 Apr 2015 11:05:58 -0700 |
parents | 876390ee9b6f |
children |
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/* * Copyright (c) 2014, 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 8039043 * @summary Null check is placed in a wrong place when storing a null to an object field on x64 with compressed oops off * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:CompileCommand=compileonly,C1NullCheckOfNullStore::test -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:-UseCompressedOops C1NullCheckOfNullStore * */ public class C1NullCheckOfNullStore { private static class Foo { Object bar; } static private void test(Foo x) { x.bar = null; } static public void main(String args[]) { Foo x = new Foo(); for (int i = 0; i < 10000; i++) { test(x); } boolean gotNPE = false; try { for (int i = 0; i < 10000; i++) { test(null); } } catch(NullPointerException e) { gotNPE = true; } if (!gotNPE) { throw new Error("Expecting a NullPointerException"); } } }