func runtime/internal/sys.Len64

3 uses

	runtime/internal/sys (current package)
		intrinsics_common.go#L48: func Len64(x uint64) (n int) {
		intrinsics_common.go#L130: func LeadingZeros64(x uint64) int { return 64 - Len64(x) }

	runtime
		histogram.go#L97: 		superBucket = uint(sys.Len64(uint64(duration))) - timeHistSubBucketBits

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