public:
  explicit LowerAddNOp(MLIRContext *context)
      : RewritePattern(AddNOp::getOperationName(), 1, context,
                       {AddV2Op::getOperationName()}) {}

  LogicalResult matchAndRewrite(Operation *op,
                                PatternRewriter &rewriter) const override {
    auto addn_op = cast<AddNOp>(op);

    // TODO(hinsu): Support variant with TensorList type. tf.AddV2 doesn't

					q = c.newprog()
					q.Link = p.Link
					p.Link = q
					q.As = AJMP
					q.Pos = p.Pos
					q.To.Type = obj.TYPE_BRANCH
					q.To.SetTarget(q.Link.Link)

					c.addnop(p.Link)
					c.addnop(p)
					bflag = 1
				}
			}

			m = int(o.size)
			if m == 0 {
				if p.As != obj.ANOP && p.As != obj.AFUNCDATA && p.As != obj.APCDATA {
					c.ctxt.Diag("zero-width instruction\n%v", p)