VN_Float01.java

/*
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 * 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.
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package jtt.optimize;

/*
 * Tests optimization of float operations.
 * @Harness: java
 * @Runs: 0f=22f; 1f=0f; 2f=144f; 3f=1f
 */
public class VN_Float01 {
    public static float test(float arg) {
        if (arg == 0) {
            return add(arg + 10);
        }
        if (arg == 1) {
            return sub(arg + 10);
        }
        if (arg == 2) {
            return mul(arg + 10);
        }
        if (arg == 3) {
            return div(arg + 10);
        }
        return 0;
    }
    public static float add(float x) {
        float c = 1;
        float t = x + c;
        float u = x + c;
        return t + u;
    }
    public static float sub(float x) {
        float c = 1;
        float t = x - c;
        float u = x - c;
        return t - u;
    }
    public static float mul(float x) {
        float c = 1;
        float t = x * c;
        float u = x * c;
        return t * u;
    }
    public static float div(float x) {
        float c = 1;
        float t = x / c;
        float u = x / c;
        return t / u;
    }
}