| /* |
| * Copyright (c) 2009, 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 6800154 |
| * @summary Add comments to long_by_long_mulhi() for better understandability |
| * |
| * @run main/othervm -Xcomp -XX:CompileOnly=Test6800154.divcomp Test6800154 |
| */ |
| |
| import java.net.URLClassLoader; |
| |
| public class Test6800154 implements Runnable { |
| static final long[] DIVIDENDS = { |
| 0, |
| 1, |
| 2, |
| 1423487, |
| 4444441, |
| 4918923241323L, |
| -1, |
| -24351, |
| 0x3333, |
| 0x0000000080000000L, |
| 0x7fffffffffffffffL, |
| 0x8000000000000000L |
| }; |
| |
| static final long[] DIVISORS = { |
| 1, |
| 2, |
| 17, |
| 12342, |
| 24123, |
| 143444, |
| 123444442344L, |
| -1, |
| -2, |
| -4423423234231423L, |
| 0x0000000080000000L, |
| 0x7fffffffffffffffL, |
| 0x8000000000000000L |
| }; |
| |
| // Initialize DIVISOR so that it is final in this class. |
| static final long DIVISOR; |
| |
| static { |
| long value = 0; |
| try { |
| value = Long.decode(System.getProperty("divisor")); |
| } catch (Throwable e) { |
| } |
| DIVISOR = value; |
| } |
| |
| public static void main(String[] args) throws Exception |
| { |
| Class cl = Class.forName("Test6800154"); |
| URLClassLoader apploader = (URLClassLoader) cl.getClassLoader(); |
| |
| // Iterate over all divisors. |
| for (int i = 0; i < DIVISORS.length; i++) { |
| System.setProperty("divisor", "" + DIVISORS[i]); |
| ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent()); |
| Class c = loader.loadClass("Test6800154"); |
| Runnable r = (Runnable) c.newInstance(); |
| r.run(); |
| } |
| } |
| |
| public void run() |
| { |
| // Iterate over all dividends. |
| for (int i = 0; i < DIVIDENDS.length; i++) { |
| long dividend = DIVIDENDS[i]; |
| |
| long expected = divint(dividend); |
| long result = divcomp(dividend); |
| |
| if (result != expected) |
| throw new InternalError(dividend + " / " + DIVISOR + " failed: " + result + " != " + expected); |
| } |
| } |
| |
| static long divint(long a) { return a / DIVISOR; } |
| static long divcomp(long a) { return a / DIVISOR; } |
| } |