!9223 [MS][LITE] add posttraining model && fix static check error

From: @jianghui58
Reviewed-by: @zhanghaibo5,@HilbertDavid
Signed-off-by: @HilbertDavid

mindspore/lite/test/models_tflite_posttraining.cfg

@@ -1 +1,3 @@
-mobilenet.tflite
+mobilenet.tflite 0.5
+transformer_20200831_encoder_fp32.tflite 68
+transformer_20200831_decoder_fp32.tflite 35

mindspore/lite/tools/converter/quantizer/post_training_quantizer.cc

@@ -867,6 +867,9 @@ STATUS PostTrainingQuantizer::QuantNode() {
           }
         }
         if (input_node->isa<mindspore::CNode>()) {
+          if (op_type == PrimitiveType_Gather) {
+            continue;
+          }
           auto input_cnode = std::dynamic_pointer_cast<mindspore::CNode>(input_node);
           auto input_cnode_primitive_c = GetValueNode<std::shared_ptr<PrimitiveC>>(input_cnode->input(0));
           if (input_cnode_primitive_c == nullptr) {
@@ -932,7 +935,8 @@ STATUS PostTrainingQuantizer::QuantNode() {
       // do weight quant
       auto weight = cnode->input(2);
       bool perchannel = false;
-      if (op_type == PrimitiveType_Conv2D || op_type == PrimitiveType_DepthwiseConv2D) {
+      if (op_type == PrimitiveType_Conv2D || op_type == PrimitiveType_DepthwiseConv2D ||
+          op_type == PrimitiveType_FullConnection) {
         perchannel = true;
       }
       DoWeightQuant(weight, primitive_c, perchannel);

mindspore/lite/tools/converter/quantizer/quant_cast.cc

@@ -47,7 +47,10 @@ STATUS QuantCast::Run(const FuncGraphPtr &graph) {
     } else {
       curnode_quant_type = primitive_c->quant_type();
     }
-
+    auto op_type = (schema::PrimitiveType)primitive_c->Type();
+    if (op_type == schema::PrimitiveType_Gather) {
+      continue;
+    }
     for (size_t i = 1; i < cnode->inputs().size(); i++) {
       auto input_node = cnode->input(i);
       auto is_graph_input = false;

mindspore/lite/tools/converter/quantizer/quantize_util.cc

@@ -89,25 +89,13 @@ bool QuantStrategy::CanOpPostQuantized(AnfNodePtr &node) const {
   auto cnode = std::dynamic_pointer_cast<CNode>(node);
   auto type = NodePrimitiveType(cnode);
   static const std::vector<schema::PrimitiveType> int8OpList = {
-    schema::PrimitiveType_Nchw2Nhwc,
-    schema::PrimitiveType_Nhwc2Nchw,
-    schema::PrimitiveType_Conv2D,
-    schema::PrimitiveType_DepthwiseConv2D,
-    schema::PrimitiveType_Add,
-    schema::PrimitiveType_Pooling,
-    schema::PrimitiveType_Concat,
-    schema::PrimitiveType_Split,
-    schema::PrimitiveType_TupleGetItem,
-    schema::PrimitiveType_Reshape,
-    schema::PrimitiveType_FullConnection,
-    schema::PrimitiveType_MatMul,
-    schema::PrimitiveType_Crop,
-    schema::PrimitiveType_DeDepthwiseConv2D,
-    schema::PrimitiveType_DeConv2D,
-    schema::PrimitiveType_Activation,
-    schema::PrimitiveType_Transpose,
-    schema::PrimitiveType_Eltwise,
-    schema::PrimitiveType_LayerNorm,
+    schema::PrimitiveType_Nchw2Nhwc,       schema::PrimitiveType_Nhwc2Nchw,  schema::PrimitiveType_Conv2D,
+    schema::PrimitiveType_DepthwiseConv2D, schema::PrimitiveType_Add,        schema::PrimitiveType_Mul,
+    schema::PrimitiveType_Pooling,         schema::PrimitiveType_Concat,     schema::PrimitiveType_Split,
+    schema::PrimitiveType_TupleGetItem,    schema::PrimitiveType_Reshape,    schema::PrimitiveType_FullConnection,
+    schema::PrimitiveType_MatMul,          schema::PrimitiveType_Crop,       schema::PrimitiveType_DeDepthwiseConv2D,
+    schema::PrimitiveType_DeConv2D,        schema::PrimitiveType_Activation, schema::PrimitiveType_Transpose,
+    schema::PrimitiveType_Eltwise,         schema::PrimitiveType_Gather,     schema::PrimitiveType_LayerNorm,
   };
   bool contain = IsContain(int8OpList, type);
   if (!contain) {

mindspore/lite/tools/net_train/net_train.cc

@@ -34,8 +34,8 @@ static const char *DELIM_SLASH = "/";
 
 void SaveFile(std::string path, void *buf, size_t size) {
   std::ofstream ofs(path);
-  assert(true == ofs.good());
-  assert(true == ofs.is_open());
+  MS_ASSERT(ofs.good() == true);
+  MS_ASSERT(ofs.is_open() == true);
 
   ofs.seekp(0, std::ios::beg);
   ofs.write((const char *)buf, size);
@@ -521,7 +521,7 @@ int NetTrain::RunNetTrain() {
 }
 
 void NetTrainFlags::InitInputDataList() {
-  char *saveptr1;
+  char *saveptr1 = nullptr;
   char *input_list = new char[this->in_data_file_.length() + 1];
   snprintf(input_list, this->in_data_file_.length() + 1, "%s", this->in_data_file_.c_str());
   char *cur_input;