/*

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

 * Copyright (c) 2019, Arm Limited. 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.aarch64.test;

import org.junit.Test;

public class AArch64MultiplyLongTest extends AArch64MatchRuleTest {

    public long signedMulLong(int a, int b) {

        return a * (long) b;

    }

    public long signedMulLongFromShort(short a, short b) {

        return (long) a * b;

    }

    public long signedMulLongFromChar(char a, char b) {

        return a * (long) b;

    }

    public long signedMulLongFromByte(byte a, byte b) {

        return (long) a * b;

    }

    @Test

    public void testSignedMulLong() {

        test("signedMulLong", 0x12345678, 0x87654321);

        checkLIR("signedMulLong", op -> op.name().equals("SMULL"), 1);

        test("signedMulLongFromShort", (short) 32767, (short) -32768);

        checkLIR("signedMulLongFromShort", op -> op.name().equals("SMULL"), 1);

        test("signedMulLongFromChar", (char) 59999, (char) 65535);

        checkLIR("signedMulLongFromChar", op -> op.name().equals("SMULL"), 1);

        test("signedMulLongFromByte", (byte) 10, (byte) -256);

        checkLIR("signedMulLongFromByte", op -> op.name().equals("SMULL"), 1);

    }

    public long signedMNegLong1(int a, int b) {

        return -(a * (long) b);

    }

    public long signedMNegLong2(int a, int b) {

        return a * (-(long) b);

    }

    @Test

    public void testSignedMNegLong() {

        test("signedMNegLong1", 0x89abcdef, 0xfedcba98);

        checkLIR("signedMNegLong1", op -> op.name().equals("SMNEGL"), 1);

        test("signedMNegLong2", 0x89abcdef, 0xfedcba98);

        checkLIR("signedMNegLong2", op -> op.name().equals("SMNEGL"), 1);

    }

    public long signedMAddLong1(int a, int b, long c) {

        return c + a * (long) b;

    }

    public long signedMAddLong2(int a, int b, long c) {

        return a * (long) b + c;

    }

    @Test

    public void testSignedMAddLong() {

        test("signedMAddLong1", 0x22228888, 0xaaaacccc, 0x123456789abcdL);

        checkLIR("signedMAddLong1", op -> op.name().equals("SMADDL"), 1);

        test("signedMAddLong2", 0x22228888, 0xaaaacccc, 0x123456789abcdL);

        checkLIR("signedMAddLong2", op -> op.name().equals("SMADDL"), 1);

    }

    public long signedMSubLong(int a, int b, long c) {

        return c - a * (long) b;

    }

    @Test

    public void testSignedMSubLong() {

        test("signedMSubLong", 0x99995555, 0xeeeebbbb, 0x3456789abcdefL);

        checkLIR("signedMSubLong", op -> op.name().equals("SMSUBL"), 1);

    }

}