32, 64, 128, 256, 512, 1024, 2048, 4096,
}

func BenchmarkMemmove(b *testing.B) {
	benchmarkSizes(b, bufSizes, func(b *testing.B, n int) {
		x := make([]byte, n)
		y := make([]byte, n)
		for i := 0; i < b.N; i++ {
			copy(x, y)
		}
	})
}

func BenchmarkMemmoveOverlap(b *testing.B) {
	benchmarkSizes(b, bufSizesOverlap, func(b *testing.B, n int) {
		x := make([]byte, n+16)
		for i := 0; i < b.N; i++ {

}

func BenchmarkHash8Bytes(b *testing.B) {
	benchmarkSize(b, 8, false)
}

func BenchmarkHash64(b *testing.B) {
	benchmarkSize(b, 64, false)
}

func BenchmarkHash128(b *testing.B) {
	benchmarkSize(b, 128, false)
}

func BenchmarkHash256(b *testing.B) {
	benchmarkSize(b, 256, false)
}

func BenchmarkHash512(b *testing.B) {
	benchmarkSize(b, 512, false)
}

		t.Errorf("hashes don't match: want %x, got %x", x, y)
	}
}

// Make sure a Hash implements the hash.Hash and hash.Hash64 interfaces.
var _ hash.Hash = &Hash{}
var _ hash.Hash64 = &Hash{}

func benchmarkSize(b *testing.B, size int) {
	h := &Hash{}
	buf := make([]byte, size)
	s := string(buf)

	b.Run("Write", func(b *testing.B) {
		b.SetBytes(int64(size))
		for i := 0; i < b.N; i++ {
			h.Reset()

			Sum(buf[:size])
		}
	})
}

func BenchmarkHash8Bytes(b *testing.B) {
	benchmarkSize(b, 8)
}

func BenchmarkHash320Bytes(b *testing.B) {
	benchmarkSize(b, 320)
}

func BenchmarkHash1K(b *testing.B) {
	benchmarkSize(b, 1024)
}

func BenchmarkHash8K(b *testing.B) {
	benchmarkSize(b, 8192)

		for i := 0; i < b.N; i++ {
			Sum256(buf[:size])
		}
	})
}

func BenchmarkHash8Bytes(b *testing.B) {
	benchmarkSize(b, 8)
}

func BenchmarkHash1K(b *testing.B) {
	benchmarkSize(b, 1024)
}

func BenchmarkHash8K(b *testing.B) {
	benchmarkSize(b, 8192)

		for i := 0; i < b.N; i++ {
			Sum256(buf[:size])
		}
	})
}

func BenchmarkHash8Bytes(b *testing.B) {
	benchmarkSize(b, 8)
}

func BenchmarkHash1K(b *testing.B) {
	benchmarkSize(b, 1024)
}

func BenchmarkHash8K(b *testing.B) {
	benchmarkSize(b, 8192)

	buf := new(bytes.Buffer)
	var w io.Writer = buf
	b.SetBytes(1000)
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		buf.Reset()
		Write(w, BigEndian, slice)
	}
}

func BenchmarkSize(b *testing.B) {
	for _, data := range sizableTypes {
		b.Run(fmt.Sprintf("%T", data), func(b *testing.B) {
			for range b.N {
				_ = Size(data)
			}
		})
	}
}

		for i := 0; i < b.N; i++ {
			Sum512(buf[:size])
		}
	})
}

func BenchmarkHash8Bytes(b *testing.B) {
	benchmarkSize(b, 8)
}

func BenchmarkHash1K(b *testing.B) {
	benchmarkSize(b, 1024)
}

func BenchmarkHash8K(b *testing.B) {
	benchmarkSize(b, 8192)