Function vfmsq_lane_f64

pub unsafe fn vfmsq_lane_f64(
    a: float64x2_t,
    b: float64x2_t,
    c: float64x1_t,
    const LANE: i32,
) -> float64x2_t

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

Floating-point fused multiply-subtract to accumulator

Arm’s documentation