func ExampleOnesCount8() {
	fmt.Printf("OnesCount8(%08b) = %d\n", 14, bits.OnesCount8(14))
	// Output:
	// OnesCount8(00001110) = 3
}

func ExampleOnesCount16() {
	fmt.Printf("OnesCount16(%016b) = %d\n", 14, bits.OnesCount16(14))
	// Output:
	// OnesCount16(0000000000001110) = 3
}

func ExampleOnesCount32() {
	fmt.Printf("OnesCount32(%032b) = %d\n", 14, bits.OnesCount32(14))
	// Output:

			in:   14,
			out:  [4]any{bits.TrailingZeros8(14), bits.TrailingZeros16(14), bits.TrailingZeros32(14), bits.TrailingZeros64(14)},
		},
		{
			name: "OnesCount",
			in:   14,
			out:  [4]any{bits.OnesCount8(14), bits.OnesCount16(14), bits.OnesCount32(14), bits.OnesCount64(14)},
		},
		{
			name: "RotateLeft",
			in:   15,
			out:  [4]any{bits.RotateLeft8(15, 2), bits.RotateLeft16(15, 2), bits.RotateLeft32(15, 2), bits.RotateLeft64(15, 2)},

}

// OnesCount8 returns the number of one bits ("population count") in x.
func OnesCount8(x uint8) int {
	return int(pop8tab[x])
}

// OnesCount16 returns the number of one bits ("population count") in x.
func OnesCount16(x uint16) int {
	return int(pop8tab[x>>8] + pop8tab[x&0xff])
}

// OnesCount32 returns the number of one bits ("population count") in x.
func OnesCount32(x uint32) int {

	// ppc64x:"POPCNTW"
	// wasm:"I64Popcnt"
	return bits.OnesCount32(n)
}

func OnesCount16(n uint16) int {
	// amd64/v2:-".*x86HasPOPCNT" amd64/v3:-".*x86HasPOPCNT"
	// amd64:"POPCNTL"
	// arm64:"VCNT","VUADDLV"
	// s390x:"POPCNT"
	// ppc64x:"POPCNTW"
	// wasm:"I64Popcnt"
	return bits.OnesCount16(n)
}

func OnesCount8(n uint8) int {
	// s390x:"POPCNT"
	// ppc64x:"POPCNTB"

	if x <= 1<<8-1 {
		got := OnesCount8(uint8(x))
		if got != want {
			t.Fatalf("OnesCount8(%#02x) == %d; want %d", uint8(x), got, want)
		}
	}

	if x <= 1<<16-1 {
		got := OnesCount16(uint16(x))
		if got != want {
			t.Fatalf("OnesCount16(%#04x) == %d; want %d", uint16(x), got, want)
		}
	}

	if x <= 1<<32-1 {
		got := OnesCount32(uint32(x))
		if got != want {

pkg math/bits, func Len16(uint16) int
pkg math/bits, func Len32(uint32) int
pkg math/bits, func Len64(uint64) int
pkg math/bits, func Len8(uint8) int
pkg math/bits, func OnesCount(uint) int
pkg math/bits, func OnesCount16(uint16) int
pkg math/bits, func OnesCount32(uint32) int
pkg math/bits, func OnesCount64(uint64) int
pkg math/bits, func OnesCount8(uint8) int
pkg math/bits, func Reverse(uint) uint

	seen := uint16(0)
	for i := len(name) - 17; i < len(name)-1; i++ {
		digit, ok := hexDigit(name[i])
		if !ok {
			return "", false
		}
		seen |= 1 << digit
	}
	if bits.OnesCount16(seen) < 5 {
		return "", false
	}
	name = name[:len(name)-20]

	// The name is a sequence of length-preceded identifiers.
	var sb strings.Builder
	for len(name) > 0 {

			return s.newValue1(ssa.OpPopCount32, types.Types[types.TINT], args[0])
		},
		sys.PPC64, sys.ARM64, sys.S390X, sys.Wasm)
	addF("math/bits", "OnesCount16",
		makeOnesCountAMD64(ssa.OpPopCount16),
		sys.AMD64)
	addF("math/bits", "OnesCount16",
		func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {
			return s.newValue1(ssa.OpPopCount16, types.Types[types.TINT], args[0])
		},

		{"Len16", Func, 9},
		{"Len32", Func, 9},
		{"Len64", Func, 9},
		{"Len8", Func, 9},
		{"Mul", Func, 12},
		{"Mul32", Func, 12},
		{"Mul64", Func, 12},
		{"OnesCount", Func, 9},
		{"OnesCount16", Func, 9},
		{"OnesCount32", Func, 9},
		{"OnesCount64", Func, 9},
		{"OnesCount8", Func, 9},
		{"Rem", Func, 14},
		{"Rem32", Func, 14},
		{"Rem64", Func, 14},
		{"Reverse", Func, 9},