Function core::arch::x86_64::_mm_tzcnt_64
1.27.0 · source · pub unsafe fn _mm_tzcnt_64(x: u64) -> i64
Available on x86-64 and target feature
bmi1
only.Expand description
Counts the number of trailing least significant zero bits.
When the source operand is 0
, it returns its size in bits.