VN_Field02.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 *
 * 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 constant folding of integer operations.
 * @Harness: java
 * @Runs: 0=18; 1=18; 2=!java.lang.NullPointerException
 */
public class VN_Field02 {
    private static boolean cond = true;
    static final VN_Field02 object = new VN_Field02();

    int field = 9;

    public static int test(int arg) {
        if (arg == 0) {
            return test1();
        }
        if (arg == 1) {
            return test2();
        }
        if (arg == 2) {
            return test3();
        }
        return 0;
    }

    private static int test1() {
        VN_Field02 a = object;
        int c = a.field;
        if (cond) {
            return c + a.field;
        }
        return 0;
    }

    private static int test2() {
        VN_Field02 a = object;
        if (cond) {
            VN_Field02 b = object;
            return a.field + b.field;
        }
        return 0;
    }

    @SuppressWarnings("all")
    private static int test3() {
        VN_Field02 a = null;
        if (cond) {
            VN_Field02 b = null;
            return a.field + b.field;
        }
        return 0;
    }
}