42 lines
890 B
C#
42 lines
890 B
C#
using System.Runtime.CompilerServices;
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using BenchmarkDotNet.Attributes;
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using BenchmarkDotNet.Jobs;
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namespace EvenPerfectBitScanner.Benchmarks;
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[SimpleJob(RuntimeMoniker.Net80, launchCount: 1, warmupCount: 1, iterationCount: 5)]
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[MemoryDiagnoser]
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public class Mod7ULongBenchmarks
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ulong Mod7(ulong value)
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{
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ulong remainder = ((uint)value % 7U) + (((uint)(value >> 32) % 7U) << 2);
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while (remainder >= 7UL)
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{
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remainder -= 7UL;
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}
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return remainder;
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}
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[Params(7UL, 8191UL, 131071UL, 2147483647UL, ulong.MaxValue - 63UL)]
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public ulong Value { get; set; }
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/// <summary>
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/// Fastest
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/// </summary>
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[Benchmark(Baseline = true)]
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public ulong ModuloOperator()
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{
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return Value % 7UL;
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}
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[Benchmark]
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public ulong ExtensionMethod()
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{
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return Mod7(Value);
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}
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}
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