w2 := x.Args[3]
		if !(x.Uses == 1 && is20Bit(int64(i)-24) && setPos(v, x.Pos) && clobber(x)) {
			break
		}
		v.reset(OpS390XSTMG4)
		v.AuxInt = int32ToAuxInt(i - 24)
		v.Aux = symToAux(s)
		v.AddArg6(p, w0, w1, w2, w3, mem)
		return true
	}
	// match: (MOVDstore [off] {sym} ptr r:(MOVDBR x) mem)
	// cond: r.Uses == 1
	// result: (MOVDBRstore [off] {sym} ptr x mem)
	for {