118 lines
3.3 KiB
Java
118 lines
3.3 KiB
Java
/*
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* Copyright (c) 2009, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 6800154
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* @summary Add comments to long_by_long_mulhi() for better understandability
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* @modules java.base/jdk.internal.misc
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* @library /test/lib
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*
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* @run main/othervm -Xcomp
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* -XX:CompileCommand=compileonly,compiler.c2.Test6800154::divcomp
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* compiler.c2.Test6800154
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*/
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package compiler.c2;
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import jdk.test.lib.Utils;
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public class Test6800154 implements Runnable {
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static final long[] DIVIDENDS = {
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0,
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1,
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2,
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1423487,
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4444441,
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4918923241323L,
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-1,
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-24351,
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0x3333,
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0x0000000080000000L,
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0x7fffffffffffffffL,
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0x8000000000000000L
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};
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static final long[] DIVISORS = {
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1,
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2,
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17,
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12342,
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24123,
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143444,
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123444442344L,
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-1,
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-2,
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-4423423234231423L,
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0x0000000080000000L,
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0x7fffffffffffffffL,
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0x8000000000000000L
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};
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// Initialize DIVISOR so that it is final in this class.
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static final long DIVISOR;
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static {
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long value = 0;
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try {
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value = Long.decode(System.getProperty("divisor"));
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} catch (Throwable e) {
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}
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DIVISOR = value;
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}
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public static void main(String[] args) throws Exception
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{
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Class cl = Test6800154.class;
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ClassLoader apploader = cl.getClassLoader();
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// Iterate over all divisors.
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for (int i = 0; i < DIVISORS.length; i++) {
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System.setProperty("divisor", "" + DIVISORS[i]);
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ClassLoader loader
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= Utils.getTestClassPathURLClassLoader(apploader.getParent());
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Class c = loader.loadClass(Test6800154.class.getName());
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Runnable r = (Runnable) c.newInstance();
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r.run();
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}
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}
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public void run()
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{
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// Iterate over all dividends.
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for (int i = 0; i < DIVIDENDS.length; i++) {
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long dividend = DIVIDENDS[i];
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long expected = divint(dividend);
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long result = divcomp(dividend);
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if (result != expected)
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throw new InternalError(dividend + " / " + DIVISOR + " failed: " + result + " != " + expected);
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}
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}
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static long divint(long a) { return a / DIVISOR; }
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static long divcomp(long a) { return a / DIVISOR; }
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}
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