Function vraddhn_high_u32 

pub fn vraddhn_high_u32(
    a: uint16x4_t,
    b: uint32x4_t,
    c: uint32x4_t,
) -> uint16x8_t

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

Rounding Add returning High Narrow (high half). Arm’s documentation