Function vfmsq_f16 

pub fn vfmsq_f16(a: float16x8_t, b: float16x8_t, c: float16x8_t) -> float16x8_t

Available on target feature fp16 and target feature neon and (AArch64 or ARM or ARM64EC) and (AArch64 or ARM64EC) and (AArch64 or ARM64EC or target feature v7) and non-ARM64EC only.

Floating-point fused multiply-subtract from accumulator Arm’s documentation