if !(v.Type.Size() <= 4 && l.Uses == 1 && clobber(l)) {
				continue
			}
			v.reset(OpARM64MADDW)
			v.AddArg3(a, x, y)
			return true
		}
		break
	}
	// match: (ADD a l:(MNEGW x y))
	// cond: v.Type.Size() <= 4 && l.Uses==1 && clobber(l)
	// result: (MSUBW a x y)
	for {
		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
			a := v_0
			l := v_1