Function vsraq_n_s8 

pub fn vsraq_n_s8(a: int8x16_t, b: int8x16_t, const N: i32) -> int8x16_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 shift right and accumulate Arm’s documentation