fix analyzer_test runs error in native_config

test=develop

paddle/fluid/inference/tests/api/config_printer.h

@@ -62,7 +62,7 @@ std::ostream &operator<<(std::ostream &os,
                          const contrib::AnalysisConfig &config) {
   os << GenSpaces(num_spaces) << "contrib::AnalysisConfig {\n";
   num_spaces++;
-  os << *reinterpret_cast<const NativeConfig *>(&config);
+  os << config.ToNativeConfig();
   if (!config.model_from_memory()) {
     os << GenSpaces(num_spaces) << "prog_file: " << config.prog_file() << "\n";
     os << GenSpaces(num_spaces) << "param_file: " << config.params_file()

paddle/fluid/inference/tests/api/tester_helper.h

@@ -54,11 +54,13 @@ namespace paddle {
 namespace inference {
 
 void PrintConfig(const PaddlePredictor::Config *config, bool use_analysis) {
+  const auto *analysis_config =
+      reinterpret_cast<const contrib::AnalysisConfig *>(config);
   if (use_analysis) {
-    LOG(INFO) << *reinterpret_cast<const contrib::AnalysisConfig *>(config);
+    LOG(INFO) << *analysis_config;
     return;
   }
-  LOG(INFO) << *reinterpret_cast<const NativeConfig *>(config);
+  LOG(INFO) << analysis_config->ToNativeConfig();
 }
 
 void CompareResult(const std::vector<PaddleTensor> &outputs,
@@ -96,12 +98,13 @@ void CompareResult(const std::vector<PaddleTensor> &outputs,
 
 std::unique_ptr<PaddlePredictor> CreateTestPredictor(
     const PaddlePredictor::Config *config, bool use_analysis = true) {
+  const auto *analysis_config =
+      reinterpret_cast<const contrib::AnalysisConfig *>(config);
   if (use_analysis) {
-    return CreatePaddlePredictor<contrib::AnalysisConfig>(
-        *(reinterpret_cast<const contrib::AnalysisConfig *>(config)));
+    return CreatePaddlePredictor<contrib::AnalysisConfig>(*analysis_config);
   }
-  return CreatePaddlePredictor<NativeConfig>(
-      *(reinterpret_cast<const NativeConfig *>(config)));
+  auto native_config = analysis_config->ToNativeConfig();
+  return CreatePaddlePredictor<NativeConfig>(native_config);
 }
 
 size_t GetSize(const PaddleTensor &out) { return VecReduceToInt(out.shape); }
@@ -328,10 +331,7 @@ void CompareNativeAndAnalysis(
     const std::vector<std::vector<PaddleTensor>> &inputs) {
   PrintConfig(config, true);
   std::vector<PaddleTensor> native_outputs, analysis_outputs;
-  const auto *analysis_config =
-      reinterpret_cast<const contrib::AnalysisConfig *>(config);
-  auto native_config = analysis_config->ToNativeConfig();
-  TestOneThreadPrediction(&native_config, inputs, &native_outputs, false);
+  TestOneThreadPrediction(config, inputs, &native_outputs, false);
   TestOneThreadPrediction(config, inputs, &analysis_outputs, true);
   CompareResult(analysis_outputs, native_outputs);
 }