/*

 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.

 * 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

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 */

package org.graalvm.compiler.core.test;

import java.util.Arrays;

import org.junit.Test;

import org.graalvm.compiler.nodes.StructuredGraph;

import org.graalvm.compiler.nodes.java.NewArrayNode;

public class CopyOfVirtualizationTest extends GraalCompilerTest {

    @Override

    protected void checkMidTierGraph(StructuredGraph graph) {

        assertTrue(graph.getNodes().filter(node -> node instanceof NewArrayNode).count() == 0, "shouldn't require allocation in %s", graph);

        super.checkMidTierGraph(graph);

    }

    public byte byteCopyOfVirtualization(int index) {

        byte[] array = new byte[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    public short shortCopyOfVirtualization(int index) {

        short[] array = new short[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    public char charCopyOfVirtualization(int index) {

        char[] array = new char[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    public int intCopyOfVirtualization(int index) {

        int[] array = new int[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    public long longCopyOfVirtualization(int index) {

        long[] array = new long[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    public float floatCopyOfVirtualization(int index) {

        float[] array = new float[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    public double doubleCopyOfVirtualization(int index) {

        double[] array = new double[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    public Object objectCopyOfVirtualization(int index) {

        Object[] array = new Object[]{1, 2, 3, 4};

        return Arrays.copyOf(array, array.length)[index];

    }

    // @Test

    public void testCopyOfVirtualization() {

        test("byteCopyOfVirtualization", 3);

        test("shortCopyOfVirtualization", 3);

        test("charCopyOfVirtualization", 3);

        test("intCopyOfVirtualization", 3);

        test("longCopyOfVirtualization", 3);

        test("floatCopyOfVirtualization", 3);

        test("doubleCopyOfVirtualization", 3);

        test("objectCopyOfVirtualization", 3);

    }

    static final byte[] byteArray = new byte[]{1, 2, 3, 4};

    public byte byteCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(byteArray, byteArray.length)[3];

    }

    static final short[] shortArray = new short[]{1, 2, 3, 4};

    public short shortCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(shortArray, shortArray.length)[3];

    }

    static final char[] charArray = new char[]{1, 2, 3, 4};

    public char charCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(charArray, charArray.length)[3];

    }

    static final int[] intArray = new int[]{1, 2, 3, 4};

    public int intCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(intArray, intArray.length)[3];

    }

    static final long[] longArray = new long[]{1, 2, 3, 4};

    public long longCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(longArray, longArray.length)[3];

    }

    static final float[] floatArray = new float[]{1, 2, 3, 4};

    public float floatCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(floatArray, floatArray.length)[3];

    }

    static final double[] doubleArray = new double[]{1, 2, 3, 4};

    public double doubleCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(doubleArray, doubleArray.length)[3];

    }

    static final Object[] objectArray = new Object[]{1, 2, 3, 4};

    public Object objectCopyOfVirtualizableAllocation() {

        return Arrays.copyOf(objectArray, objectArray.length)[3];

    }

    @Test

    public void testCopyOfVirtualizableAllocation() {

        test("byteCopyOfVirtualizableAllocation");

        test("shortCopyOfVirtualizableAllocation");

        test("charCopyOfVirtualizableAllocation");

        test("intCopyOfVirtualizableAllocation");

        test("longCopyOfVirtualizableAllocation");

        test("floatCopyOfVirtualizableAllocation");

        test("doubleCopyOfVirtualizableAllocation");

        test("objectCopyOfVirtualizableAllocation");

    }

}