w1 := x.Args[2]
		if !(x.Uses == 1 && is20Bit(int64(i)-16) && setPos(v, x.Pos) && clobber(x)) {
			break
		}
		v.reset(OpS390XSTMG3)
		v.AuxInt = int32ToAuxInt(i - 16)
		v.Aux = symToAux(s)
		v.AddArg5(p, w0, w1, w2, mem)
		return true
	}
	// match: (MOVDstore [i] {s} p w3 x:(STMG3 [i-24] {s} p w0 w1 w2 mem))
	// cond: x.Uses == 1 && is20Bit(int64(i)-24) && setPos(v, x.Pos) && clobber(x)