Function vtstq_p16 

pub fn vtstq_p16(a: poly16x8_t, b: poly16x8_t) -> uint16x8_t

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

Signed compare bitwise Test bits nonzero Arm’s documentation