001/*
002 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.jtt.micro;
024
025import org.junit.*;
026
027import com.oracle.graal.jtt.*;
028
029public class FloatingReads extends JTTTest {
030
031    public static long init = Runtime.getRuntime().totalMemory();
032    private final int f = 10;
033    private int a;
034    private int b;
035    private int c;
036
037    public int test(int d) {
038        a = 3;
039        b = 5;
040        c = 7;
041        for (int i = 0; i < d; i++) {
042            if (i % 2 == 0) {
043                a += b;
044            }
045            if (i % 4 == 0) {
046                b += c;
047            } else if (i % 3 == 0) {
048                b -= a;
049            }
050            if (i % 5 == 0) {
051                for (int j = 0; j < i; j++) {
052                    c += a;
053                }
054                a -= f;
055            }
056            b = a ^ c;
057            if (i % 6 == 0) {
058                c--;
059            } else if (i % 7 == 0) {
060                Runtime.getRuntime().totalMemory();
061            }
062        }
063        return a + b + c;
064    }
065
066    @Test
067    public void run0() {
068        runTest("test", 10);
069    }
070
071    @Test
072    public void run1() {
073        runTest("test", 1000);
074    }
075
076    @Test
077    public void run2() {
078        runTest("test", 1);
079    }
080
081    @Test
082    public void run3() {
083        runTest("test", 0);
084    }
085}