Function svmla_n_u8_z 

pub fn svmla_n_u8_z(
    pg: svbool_t,
    op1: svuint8_t,
    op2: svuint8_t,
    op3: u8,
) -> svuint8_t

🔬This is a nightly-only experimental API. (stdarch_aarch64_sve #145052)

Available on (AArch64 or ARM64EC) and target feature sve only.

Multiply-add, addend first Arm’s documentation