message: In TRT6, do not manually fall to fp16 in case of missing quant ranges
  TensorRT6 internally converts those layers to FP16.
diff: @@ -1566,8 +1566,11 @@ void Converter::MaybeApplyQuantizationRanges() {
  #endif
  if (use_calibration()) return;
  +#if !IS_TRT_VERSION_GE(6, 0, 0, 0)
  // Attempt to find tensors that are missing ranges, and set the corresponding
  // layer's precision to FP16 to avoid Builder::buildCudaEngine() failing.
  + // This is only needed for TensorRT 5 and before because
  + // TensorRT6 falls to FP16 internally.
  // TensorRT doesn't need ranges for intermediate tensors when layers are fused
  // so find fused layers first.
  // Get all tensors from network and deduce fused ops.
  @@ -1696,6 +1699,7 @@ void Converter::MaybeApplyQuantizationRanges() {
  }
  }
  }
  +#endif
  }
  void Converter::PropagateQuantizationRanges() {
  