Function core::arch::x86::_mm_tzcnt_32

1.27.0· source · [−]

pub unsafe fn _mm_tzcnt_32(x: u32) -> i32

This is supported on x86 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.