// If the weight is applicable to dynamic range quantization, insert Quantize
// and Dequantize ops with either per-axis or per-tensor scale.
class PrepareDynamicRangeQuantizableOp
    : public OpRewritePattern<arith::ConstantOp> {
 public:
  explicit PrepareDynamicRangeQuantizableOp(
      MLIRContext* context, const quant::QuantizationSpecs& quant_specs,
      llvm::SetVector<Operation*>* const visited_nonquantizable_ops)