jdk-24/test/hotspot/jtreg/compiler/vectorization/runner/ArrayInvariantFillTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 *
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 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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/*
 * @test
 * @summary Vectorization test on array invariant fill
 * @library /test/lib /
 *
 * @build sun.hotspot.WhiteBox
 *        compiler.vectorization.runner.VectorizationTestRunner
 *
 * @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox
 * @run main/othervm -Xbootclasspath/a:.
 *                   -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI
 *                   -XX:-OptimizeFill
 *                   compiler.vectorization.runner.ArrayInvariantFillTest
 *
 * @requires vm.compiler2.enabled & vm.flagless
 */

package compiler.vectorization.runner;

import java.util.Random;

public class ArrayInvariantFillTest extends VectorizationTestRunner {

    private static final int SIZE = 2345;

    private int intInv;
    private char charInv;
    private float floatInv;
    private double doubleInv;

    public ArrayInvariantFillTest() {
        Random ran = new Random(10);
        intInv = ran.nextInt();
        charInv = (char) ran.nextInt();
        floatInv = ran.nextFloat();
        doubleInv = ran.nextDouble();
    }

    // ---------------- Simple Fill ----------------
    @Test
    public byte[] fillByteArray() {
        byte[] res = new byte[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = (byte) 10;
        }
        return res;
    }

    @Test
    public short[] fillShortArray() {
        short[] res = new short[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = (short) -3333;
        }
        return res;
    }

    @Test
    public char[] fillCharArray() {
        char[] res = new char[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = (char) 55555;
        }
        return res;
    }

    @Test
    public int[] fillIntArray() {
        int[] res = new int[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = 2147483647;
        }
        return res;
    }

    @Test
    public long[] fillLongArray() {
        long[] res = new long[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = -2222222222222222L;
        }
        return res;
    }

    @Test
    public float[] fillFloatArray() {
        float[] res = new float[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = 3.234567e8f;
        }
        return res;
    }

    @Test
    public double[] fillDoubleArray() {
        double[] res = new double[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = -9.87654321e50;
        }
        return res;
    }

    // ---------------- Fill With Type Change ----------------
    @Test
    public long[] fillLongArrayWithInt() {
        long[] res = new long[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = intInv;
        }
        return res;
    }

    @Test
    public long[] fillLongArrayWithUnsigned() {
        long[] res = new long[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = charInv;
        }
        return res;
    }

    @Test
    public long[] fillLongArrayWithFloat() {
        long[] res = new long[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = (long) floatInv;
        }
        return res;
    }

    @Test
    public int[] fillIntArrayWithDouble() {
        int[] res = new int[SIZE];
        for (int i = 0; i < SIZE; i++) {
            res[i] = (int) doubleInv;
        }
        return res;
    }
}