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package org.openjdk.bench.valhalla.ackermann;

import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;

import java.util.concurrent.TimeUnit;

@Fork(3)
@Warmup(iterations = 5, time = 1)
@Measurement(iterations = 5, time = 1)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
@State(Scope.Thread)
public abstract class AckermannBase {

    // ackermann(1,1748) + ackermann(2,1897) + ackermann(3,8) == 9999999 invocations
    // max depth - 3798
    public static final int X1 = 1;
    public static final int Y1 = 1748;
    public static final int X2 = 2;
    public static final int Y2 = 1897;
    public static final int X3 = 3;
    public static final int Y3 = 8;

    public static final int OPI = 9999999;

}
