CHECK_NOTNULL(z.node());

    if (expected) {
      // Construct backward graph.
      auto dz = Const(scope, {{1.0, 1.0}, {1.0, 1.0}});
      auto dx = MatMul(scope, dz, y, MatMul::TransposeB(true));
      auto dy = MatMul(scope, x, dz, MatMul::TransposeA(true));
    } else {
      // Call AddSymbolicGradients.
      auto dz = Const(scope, {{1.0, 1.0}, {1.0, 1.0}});
      std::vector<Output> grad_outputs;
      TF_ASSERT_OK(

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		sfx := inst.Op.String()[2:]
		bo := int(inst.Args[0].(Imm))
		bi := inst.Args[1].(CondReg)
		atsfx := [4]string{"", "?", "-", "+"}
		decsfx := [2]string{"dnz", "dz"}

		//BO field is... complicated (z == ignored bit, at == prediction hint)
		//Paraphrased from ISA 3.1 Book I Section 2.4:
		//
		//0000z -> decrement ctr, b if ctr != 0 and CRbi == 0

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archaeological.museum archaeology.museum archi architectes.bj architecture.museum ardal.no aremark.no arendal.no arezzo.it ariake.saga.jp arida.wakayama.jp aridagawa.wakayama.jp arita.saga.jp arkhangelsk.su armenia.su army arna.no arpa arq.br art art.br art.do art.dz art.ht art.museum art.pl art.sn artanddesign.museum artcenter.museum artdeco.museum arte arte.bo arteducation.museum artgallery.museum arts.co arts.museum arts.nf arts.ro arts.ve artsandcrafts.museum arvo.network as as.us asago.hyogo.jp asahi.chiba.jp...

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