Function clrs8 

pub fn clrs8(a: usize) -> usize

🔬This is a nightly-only experimental API. (riscv_ext_intrinsics #114544)

Available on (RISC-V RV64) and (RISC-V RV32 or RISC-V RV64) only.

Count the number of redundant sign bits of the packed 8-bit elements