Mercurial > hg > graal-compiler
view test/compiler/7046096/Test7046096.java @ 6142:121e5708ae96
7169782: C2: SIGSEGV in LShiftLNode::Ideal(PhaseGVN*, bool)
Summary: keep intermediate node alive till the end of the graph construction using dummy hook node trick
Reviewed-by: kvn, twisti
Contributed-by: vladimir.x.ivanov@oracle.com
author | kvn |
---|---|
date | Tue, 12 Jun 2012 09:47:23 -0700 |
parents | e3cbc9ddd434 |
children |
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/* * 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 7046096 * @summary SEGV IN C2 WITH 6U25 * * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:+OptimizeStringConcat Test7046096 */ public class Test7046096 { static int first = 1; String add(String str) { if (first != 0) { return str + "789"; } else { return "null"; } } String test(String str) { for (int i=0; i < first; i++) { if (i > 1) return "bad"; } return add(str+"456"); } public static void main(String [] args) { Test7046096 t = new Test7046096(); for (int i = 0; i < 11000; i++) { String str = t.test("123"); if (!str.equals("123456789")) { System.out.println("FAILED: " + str + " != \"123456789\""); System.exit(97); } } } }