001/*
002 * Copyright (c) 2009, 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.optimize;
024
025import org.junit.*;
026
027import com.oracle.graal.jtt.*;
028
029/*
030 * Tests optimization of float operations.
031 */
032public class VN_Double01 extends JTTTest {
033
034    public static double test(double arg) {
035        if (arg == 0) {
036            return add(arg + 10);
037        }
038        if (arg == 1) {
039            return sub(arg + 10);
040        }
041        if (arg == 2) {
042            return mul(arg + 10);
043        }
044        if (arg == 3) {
045            return div(arg + 10);
046        }
047        return 0;
048    }
049
050    public static double add(double x) {
051        double c = 1;
052        double t = x + c;
053        double u = x + c;
054        return t + u;
055    }
056
057    public static double sub(double x) {
058        double c = 1;
059        double t = x - c;
060        double u = x - c;
061        return t - u;
062    }
063
064    public static double mul(double x) {
065        double c = 1;
066        double t = x * c;
067        double u = x * c;
068        return t * u;
069    }
070
071    public static double div(double x) {
072        double c = 1;
073        double t = x / c;
074        double u = x / c;
075        return t / u;
076    }
077
078    @Test
079    public void run0() throws Throwable {
080        runTest("test", 0d);
081    }
082
083    @Test
084    public void run1() throws Throwable {
085        runTest("test", 1d);
086    }
087
088    @Test
089    public void run2() throws Throwable {
090        runTest("test", 2d);
091    }
092
093    @Test
094    public void run3() throws Throwable {
095        runTest("test", 3d);
096    }
097
098}