const float zp = q_type.getZeroPoint();

    auto input_values = input_dequant.getValue();

    // mapValues always takes a function returning APInt, even when the output
    // is actually float.
    using DequantizeFuncType = llvm::APInt(const llvm::APInt&);
    auto dequantize_func = [&](const APInt& ap_int_value) -> APInt {
      const int64_t int_value = ap_int_value.getSExtValue();

      const float real = (int_value - zp) * scale;