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

计算尾随的最低有效零位的数量。

当源操作数为 0 时,它将返回其大小 (以位为单位)。

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