Function vrsubhn_high_s64

pub unsafe fn vrsubhn_high_s64(
    a: int32x2_t,
    b: int64x2_t,
    c: int64x2_t,
) -> int32x4_t

Available on (AArch64 or target_arch="arm64ec") and target feature neon only.

Rounding subtract returning high narrow

Arm’s documentation