Function vcls_u16 

pub fn vcls_u16(a: uint16x4_t) -> int16x4_t

🔬This is a nightly-only experimental API. (stdarch_arm_neon_intrinsics #111800)

Available on ARM and target feature neon and (AArch64 or ARM or ARM64EC) and (AArch64 or ARM64EC or target feature v7) only.

Count leading sign bits Arm’s documentation