func math/bits.LeadingZeros64

9 uses

	math/bits (current package)
		bits.go#L37: func LeadingZeros64(x uint64) int { return 64 - Len64(x) }
		bits.go#L531: 	s := uint(LeadingZeros64(y))

	math
		fma.go#L66: 	l = int32(bits.LeadingZeros64(u1))
		fma.go#L68: 		l += int32(bits.LeadingZeros64(u2))
		fma.go#L83: 		shift := uint(bits.LeadingZeros64(mantissa) - 11)
		trig_reduce.go#L59: 	lz := uint(bits.LeadingZeros64(hi))

	math/big
		float.go#L520: 	s := bits.LeadingZeros64(x)

	strconv
		eisel_lemire.go#L41: 	clz := bits.LeadingZeros64(man)
		eisel_lemire.go#L116: 	clz := bits.LeadingZeros64(man)