}

	if i <= 32 {
		x32 := uint32(x)
		t32 := T.TrailingZeros32(x32) // ERROR "intrinsic substitution for TrailingZeros32"
		if i != t32 {
			logf("TrailingZeros32(0x%x) expected %d but got %d\n", x32, i, t32)
		}
		x32 = -x32
		t32 = T.TrailingZeros32(x32) // ERROR "intrinsic substitution for TrailingZeros32"
		if i != t32 {
			logf("TrailingZeros32(0x%x) expected %d but got %d\n", x32, i, t32)
		}
	}
}

			t.Errorf("TrailingZeros64(%d)=%d, want %d", x, got, i)
		}
	}
}
func TestTrailingZeros32(t *testing.T) {
	for i := 0; i <= 32; i++ {
		x := uint32(5) << uint(i)
		if got := sys.TrailingZeros32(x); got != i {
			t.Errorf("TrailingZeros32(%d)=%d, want %d", x, got, i)
		}
	}
}

func TestBswap64(t *testing.T) {
	x := uint64(0x1122334455667788)
	y := sys.Bswap64(x)
	if y != 0x8877665544332211 {

	// Output:
	// TrailingZeros16(0000000000001110) = 1
}

func ExampleTrailingZeros32() {
	fmt.Printf("TrailingZeros32(%032b) = %d\n", 14, bits.TrailingZeros32(14))
	// Output:
	// TrailingZeros32(00000000000000000000000000001110) = 1
}

func ExampleTrailingZeros64() {
	fmt.Printf("TrailingZeros64(%064b) = %d\n", 14, bits.TrailingZeros64(14))
	// Output:

	}
	if runtime.GOARCH != "386" {
		// As explained above, TrailingZeros64 and TrailingZeros32 are not Go code on 386.
		// The same applies to Bswap32.
		want["runtime/internal/sys"] = append(want["runtime/internal/sys"], "TrailingZeros64")
		want["runtime/internal/sys"] = append(want["runtime/internal/sys"], "TrailingZeros32")
		want["runtime/internal/sys"] = append(want["runtime/internal/sys"], "Bswap32")
	}

			prod = uint64(v) * uint64(n)
			low = uint32(prod)
		}
	}
	return uint32(prod >> 32)
}

// exp2 generates n with probability 1/2^(n+1).
func (r *pcgRand) exp2() int {
	return bits.TrailingZeros32(r.uint32())
}

// bool generates a random bool.
func (r *pcgRand) bool() bool {
	return r.uint32()&1 == 0
}

// noCopy may be embedded into structs which must not be copied
// after the first use.

	"\x05\x00\x01\x00\x02\x00\x01\x00\x03\x00\x01\x00\x02\x00\x01\x00" +
	"\x04\x00\x01\x00\x02\x00\x01\x00\x03\x00\x01\x00\x02\x00\x01\x00"

// TrailingZeros32 returns the number of trailing zero bits in x; the result is 32 for x == 0.
func TrailingZeros32(x uint32) int {
	if x == 0 {
		return 32
	}
	// see comment in TrailingZeros64
	return int(deBruijn32tab[(x&-x)*deBruijn32>>(32-5)])
}

		},
		{
			name: "TrailingZeros",
			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)},
		},
		{

	if x == 0 {
		return 16
	}
	// see comment in TrailingZeros64
	return int(deBruijn32tab[uint32(x&-x)*deBruijn32>>(32-5)])
}

// TrailingZeros32 returns the number of trailing zero bits in x; the result is 32 for x == 0.
func TrailingZeros32(x uint32) int {
	if x == 0 {
		return 32
	}
	// see comment in TrailingZeros64
	return int(deBruijn32tab[(x&-x)*deBruijn32>>(32-5)])
}

	return bits.TrailingZeros64(1 - n)
}

func TrailingZeros32(n uint32) int {
	// amd64/v1,amd64/v2:"BTSQ\\t\\$32","BSFQ"
	// amd64/v3:"TZCNTL"
	// 386:"BSFL"
	// arm:"CLZ"
	// arm64:"RBITW","CLZW"
	// s390x:"FLOGR","MOVWZ"
	// ppc64x/power8:"ANDN","POPCNTW"
	// ppc64x/power9: "CNTTZW"
	// wasm:"I64Ctz"
	return bits.TrailingZeros32(n)
}

func TrailingZeros16(n uint16) int {

pkg math/bits, func RotateLeft64(uint64, int) uint64
pkg math/bits, func RotateLeft8(uint8, int) uint8
pkg math/bits, func TrailingZeros(uint) int
pkg math/bits, func TrailingZeros16(uint16) int
pkg math/bits, func TrailingZeros32(uint32) int
pkg math/bits, func TrailingZeros64(uint64) int
pkg math/bits, func TrailingZeros8(uint8) int
pkg mime, var ErrInvalidMediaParameter error
pkg mime/multipart, type FileHeader struct, Size int64