1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/6800154/Test6800154.java Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,109 @@
1.4 +/*
1.5 + * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/**
1.28 + * @test
1.29 + * @bug 6800154
1.30 + * @summary Add comments to long_by_long_mulhi() for better understandability
1.31 + *
1.32 + * @run main/othervm -Xcomp -XX:CompileOnly=Test6800154.divcomp Test6800154
1.33 + */
1.34 +
1.35 +import java.net.URLClassLoader;
1.36 +
1.37 +public class Test6800154 implements Runnable {
1.38 + static final long[] DIVIDENDS = {
1.39 + 0,
1.40 + 1,
1.41 + 2,
1.42 + 1423487,
1.43 + 4444441,
1.44 + 4918923241323L,
1.45 + -1,
1.46 + -24351,
1.47 + 0x3333,
1.48 + 0x0000000080000000L,
1.49 + 0x7fffffffffffffffL,
1.50 + 0x8000000000000000L
1.51 + };
1.52 +
1.53 + static final long[] DIVISORS = {
1.54 + 1,
1.55 + 2,
1.56 + 17,
1.57 + 12342,
1.58 + 24123,
1.59 + 143444,
1.60 + 123444442344L,
1.61 + -1,
1.62 + -2,
1.63 + -4423423234231423L,
1.64 + 0x0000000080000000L,
1.65 + 0x7fffffffffffffffL,
1.66 + 0x8000000000000000L
1.67 + };
1.68 +
1.69 + // Initialize DIVISOR so that it is final in this class.
1.70 + static final long DIVISOR;
1.71 +
1.72 + static {
1.73 + long value = 0;
1.74 + try {
1.75 + value = Long.decode(System.getProperty("divisor"));
1.76 + } catch (Throwable e) {
1.77 + }
1.78 + DIVISOR = value;
1.79 + }
1.80 +
1.81 + public static void main(String[] args) throws Exception
1.82 + {
1.83 + Class cl = Class.forName("Test6800154");
1.84 + URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
1.85 +
1.86 + // Iterate over all divisors.
1.87 + for (int i = 0; i < DIVISORS.length; i++) {
1.88 + System.setProperty("divisor", "" + DIVISORS[i]);
1.89 + ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
1.90 + Class c = loader.loadClass("Test6800154");
1.91 + Runnable r = (Runnable) c.newInstance();
1.92 + r.run();
1.93 + }
1.94 + }
1.95 +
1.96 + public void run()
1.97 + {
1.98 + // Iterate over all dividends.
1.99 + for (int i = 0; i < DIVIDENDS.length; i++) {
1.100 + long dividend = DIVIDENDS[i];
1.101 +
1.102 + long expected = divint(dividend);
1.103 + long result = divcomp(dividend);
1.104 +
1.105 + if (result != expected)
1.106 + throw new InternalError(dividend + " / " + DIVISOR + " failed: " + result + " != " + expected);
1.107 + }
1.108 + }
1.109 +
1.110 + static long divint(long a) { return a / DIVISOR; }
1.111 + static long divcomp(long a) { return a / DIVISOR; }
1.112 +}
