Function _lzcnt_u64
#[target_feature(enable = "lzcnt")]
pub const fn _lzcnt_u64(x: u64) -> u64Counts the leading most significant zero bits.
When the operand is zero, it returns its size in bits.
_lzcnt_u64#[target_feature(enable = "lzcnt")]
pub const fn _lzcnt_u64(x: u64) -> u64Counts the leading most significant zero bits.
When the operand is zero, it returns its size in bits.