/*

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package org.graalvm.compiler.core.test;

import org.graalvm.compiler.nodes.StructuredGraph;

import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;

import org.graalvm.compiler.nodes.calc.AndNode;

import org.graalvm.compiler.nodes.calc.NotNode;

import org.graalvm.compiler.nodes.calc.OrNode;

import org.junit.Assert;

import org.junit.Test;

public class DeMorganCanonicalizationTest extends GraalCompilerTest {

    public static int or(int a, int b) {

        return ~a | ~b;

    }

    public static int and(int a, int b) {

        return ~a & ~b;

    }

    @Test

    public void testAnd() {

        StructuredGraph g = parseEager("and", AllowAssumptions.NO, getInitialOptions());

        Assert.assertEquals(1, g.getNodes().filter(OrNode.class).count());

        Assert.assertEquals(1, g.getNodes().filter(NotNode.class).count());

        testAgainstExpected(g.method(), new Result(and(-1, 17), null), (Object) null, -1, 17);

        testAgainstExpected(g.method(), new Result(and(-1, 1), null), (Object) null, -1, 1);

        testAgainstExpected(g.method(), new Result(and(-1, -1), null), (Object) null, -1, -1);

        testAgainstExpected(g.method(), new Result(and(Integer.MIN_VALUE, Integer.MIN_VALUE), null), (Object) null, Integer.MIN_VALUE, Integer.MIN_VALUE);

    }

    @Test

    public void testOr() {

        StructuredGraph g = parseEager("or", AllowAssumptions.NO, getInitialOptions());

        Assert.assertEquals(1, g.getNodes().filter(AndNode.class).count());

        Assert.assertEquals(1, g.getNodes().filter(NotNode.class).count());

        testAgainstExpected(g.method(), new Result(or(-1, 17), null), (Object) null, -1, 17);

        testAgainstExpected(g.method(), new Result(or(-1, 1), null), (Object) null, -1, 1);

        testAgainstExpected(g.method(), new Result(or(-1, -1), null), (Object) null, -1, -1);

        testAgainstExpected(g.method(), new Result(or(Integer.MIN_VALUE, Integer.MIN_VALUE), null), (Object) null, Integer.MIN_VALUE, Integer.MIN_VALUE);

    }

}