!4565 fix post training quant

Merge pull request !4565 from xutianchun/quant_0817

mindspore/lite/tools/anf_exporter/anf_exporter.cc

@@ -238,7 +238,6 @@ schema::MetaGraphT *AnfExporter::Export(const FuncGraphPtr &func_graph) {
     }
 
     meta_graphT->nodes.emplace_back(std::move(node));
-    primitiveT_value->SetPrimitiveT(nullptr);
   }
   // set graph input tensors
   SetGraphInputIndex(meta_graphT);
@@ -296,6 +295,18 @@ int AnfExporter::ConvertInputParameter(const std::shared_ptr<AnfNode> input_anod
     paramTensor->nodeType = schema::NodeType_ValueNode;
     paramTensor->data.resize(paramValue->tensor_size());
     memcpy(paramTensor->data.data(), paramValue->tensor_addr(), paramValue->tensor_size());
+    for (auto &ite : paramValue->quant_param()) {
+      auto quantPar = std::make_unique<schema::QuantParamT>();
+      quantPar->scale = ite->scale;
+      quantPar->zeroPoint = ite->zeroPoint;
+      quantPar->min = ite->zeroPoint;
+      quantPar->max = ite->max;
+      quantPar->narrowRange = ite->narrowRange;
+      quantPar->inited = ite->inited;
+      quantPar->numBits = ite->numBits;
+      paramTensor->quantParams.emplace_back(std::move(quantPar));
+      paramTensor->dataType = paramValue->tensor_type();
+    }
   }
   node_id_map_[paramNode->fullname_with_scope()] = meta_graphT->allTensors.size();
   output_cnode->inputIndex.emplace_back(meta_graphT->allTensors.size());