if !(p.Op != OpSB && x.Uses == 1 && is20Bit(int64(i)-8) && setPos(v, x.Pos) && clobber(x)) {
			break
		}
		v.reset(OpS390XSTMG2)
		v.AuxInt = int32ToAuxInt(i - 8)
		v.Aux = symToAux(s)
		v.AddArg4(p, w0, w1, mem)
		return true
	}
	// match: (MOVDstore [i] {s} p w2 x:(STMG2 [i-16] {s} p w0 w1 mem))
	// cond: x.Uses == 1 && is20Bit(int64(i)-16) && setPos(v, x.Pos) && clobber(x)

		p.Pos = p.Pos.WithNotStmt()
	}
	return p
}

// Pc returns the current Prog.
func (s *State) Pc() *obj.Prog {
	return s.pp.Next
}

// SetPos sets the current source position.
func (s *State) SetPos(pos src.XPos) {
	s.pp.Pos = pos
}

// Br emits a single branch instruction and returns the instruction.
// Not all architectures need the returned instruction, but otherwise