Mercurial > hg > graal-compiler
view test/compiler/6478991/NullCheckTest.java @ 19143:f10ca512eb40
Merge with cd49455040c1d57d8ab74473b3786ecc4f663060
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
---|---|
date | Wed, 04 Feb 2015 16:38:09 -0800 |
parents | 15559220ce79 |
children |
line wrap: on
line source
/* * Copyright (c) 2011, 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 6478991 * @summary C1 NullCheckEliminator yields incorrect exceptions * * @run main/othervm -XX:CompileOnly=NullCheckTest.test,NullCheckTest.inlined -Xcomp NullCheckTest */ public class NullCheckTest { static class A { int f; public final void inlined(A a) { // This cast is intended to fail. B b = ((B) a); } } static class B extends A { } private static void test(A a1, A a2) { // Inlined call must do a null check on a1. // However, the exlipcit NullCheck instruction is eliminated and // the null check is folded into the field load below, so the // exception in the inlined method is thrown before the null check // and the NullPointerException is not thrown. a1.inlined(a2); int x = a1.f; } public static void main(String[] args) { // load classes new B(); try { test(null, new A()); throw new InternalError("FAILURE: no exception"); } catch (NullPointerException ex) { System.out.println("CORRECT: NullPointerException"); } catch (ClassCastException ex) { System.out.println("FAILURE: ClassCastException"); throw ex; } } }