p.AddRestSourceReg(v.Args[1].Reg())
		} else {
			p.AddRestSourceReg(ppc64.REG_R0)
		}
		// AuxInt values 4,5,6 implemented with reverse operand order from 0,1,2
		if v.AuxInt > 3 {
			p.Reg, p.GetFrom3().Reg = p.GetFrom3().Reg, p.Reg
		}
		p.From.SetConst(v.AuxInt & 3)

	case ssa.OpPPC64SETBC, ssa.OpPPC64SETBCR:
		p := s.Prog(v.Op.Asm())
		p.To.Type = obj.TYPE_REG
		p.To.Reg = v.Reg()

    auto input_shape = input_ty.getShape();

    DenseIntElementsAttr block_shape;
    DenseIntElementsAttr crops;
    if (!matchPattern(op.getBlockShape(), m_Constant(&block_shape)) ||
        !matchPattern(op.getCrops(), m_Constant(&crops))) {
      return failure();
    }

    auto block_shape_ty = block_shape.getType();
    if (!block_shape_ty.hasRank() || block_shape_ty.getRank() != 1) {
      return failure();