diff --git a/lite/api/model_test.cc b/lite/api/model_test.cc
index 6e0a249a81c8c2476a9a0685ab6492da3d4013a6..114d1acdbe1aa3e73bfa593a7a8950eacf3d415d 100644
--- a/lite/api/model_test.cc
+++ b/lite/api/model_test.cc
@@ -40,6 +40,7 @@ void OutputOptModel(const std::string& load_model_dir,
   config.set_valid_places({
       Place{TARGET(kX86), PRECISION(kFloat)},
       Place{TARGET(kARM), PRECISION(kFloat)},
+      Place{TARGET(kHost), PRECISION(kFloat)},
   });
   auto predictor = lite_api::CreatePaddlePredictor(config);
 
diff --git a/lite/core/mir/fusion/conv_elementwise_fuser.cc b/lite/core/mir/fusion/conv_elementwise_fuser.cc
index c3ab3e4c4ca9bd8d6a6eaaf82e40dcb06cf99ea9..abc78edda88e008945e9d184b02e5feef3e5a4b1 100644
--- a/lite/core/mir/fusion/conv_elementwise_fuser.cc
+++ b/lite/core/mir/fusion/conv_elementwise_fuser.cc
@@ -27,8 +27,10 @@ void ConvElementwiseFuser::BuildPattern() {
       VarNode("input")->assert_is_op_input(conv_type_, "Input")->AsInput();
   auto* filter =
       VarNode("filter")->assert_is_op_input(conv_type_, "Filter")->AsInput();
-  auto* bias =
-      VarNode("bias")->assert_is_op_input("elementwise_add", "Y")->AsInput();
+  auto* bias = VarNode("bias")
+                   ->assert_is_op_input("elementwise_add", "Y")
+                   ->AsInput()
+                   ->assert_is_persistable_var();
 
   // create op nodes
   auto* conv2d =
diff --git a/lite/core/mir/memory_optimize_pass.cc b/lite/core/mir/memory_optimize_pass.cc
index 6956e805c673d8776d7bdd414dce0a5ddfcd965a..02311b0579456768389bb725cae71ae897c78432 100644
--- a/lite/core/mir/memory_optimize_pass.cc
+++ b/lite/core/mir/memory_optimize_pass.cc
@@ -49,6 +49,7 @@ void MemoryOptimizePass::CollectLifeCycleByDevice(
                                         "equal",
                                         "lod_reset",
                                         "concat",
+                                        "yolo_box",
                                         "graph_op",
                                         "feed",
                                         "fetch"};
diff --git a/lite/kernels/arm/norm_compute.cc b/lite/kernels/arm/norm_compute.cc
index 3cc1645fc6823c4c3276cd1f22f4be8a584d2073..fb8b4bbe0773b808a0f6942d1120ebc7d4e844d2 100644
--- a/lite/kernels/arm/norm_compute.cc
+++ b/lite/kernels/arm/norm_compute.cc
@@ -47,4 +47,5 @@ REGISTER_LITE_KERNEL(
     norm, kARM, kFloat, kNCHW, paddle::lite::kernels::arm::NormCompute, def)
     .BindInput("X", {LiteType::GetTensorTy(TARGET(kARM))})
     .BindOutput("Out", {LiteType::GetTensorTy(TARGET(kARM))})
+    .BindOutput("Norm", {LiteType::GetTensorTy(TARGET(kARM))})
     .Finalize();
diff --git a/lite/operators/op_params.h b/lite/operators/op_params.h
index 5c88a28527aec59e0c5c729f893f5a81d3dfdae2..321474875fe2dc17e28e084b8477f468ccb99a88 100644
--- a/lite/operators/op_params.h
+++ b/lite/operators/op_params.h
@@ -600,6 +600,7 @@ struct SequenceSoftmaxParam {
 struct NormParam {
   const lite::Tensor* X{};
   lite::Tensor* Out{};
+  lite::Tensor* Norm{};
   int axis{1};
   float epsilon{1e-10};
 };
diff --git a/lite/tests/kernels/norm_compute_test.cc b/lite/tests/kernels/norm_compute_test.cc
index 830bac062784a8c16752f4e43a23ed8157cc6c0f..6aee1758c19cd793de709921c4733b8892e5f3d9 100644
--- a/lite/tests/kernels/norm_compute_test.cc
+++ b/lite/tests/kernels/norm_compute_test.cc
@@ -46,7 +46,7 @@ class NormComputeTester : public arena::TestCase {
 
     auto* x = scope->FindTensor(input_);
     const auto* x_data = x->data<float>();
-    int axis = axis_ < 0 ? axis + dims_.size() : axis_;
+    int axis = axis_ < 0 ? axis_ + dims_.size() : axis_;
     int pre_n = dims_.count(0, axis);
     int n = dims_[axis];
     int post_n = dims_.count(axis + 1, dims_.size());
diff --git a/lite/tools/build.sh b/lite/tools/build.sh
index d56a5f81cb87c84078c475caa634e54df7fd280f..87e50fd11e839ee3dd45552ee17944a39bb5b2be 100755
--- a/lite/tools/build.sh
+++ b/lite/tools/build.sh
@@ -221,7 +221,7 @@ function print_usage {
     echo -e "argument choices:"
     echo -e "--arm_os:\t android|ios|ios64"
     echo -e "--arm_abi:\t armv8|armv7"
-    echo -e "--arm_lang:\t gcc|clang (for android)"
+    echo -e "--arm_lang:\t only support gcc now, clang will be supported in future.(for android)"
     echo -e "--android_stl:\t c++_static|c++_shared (for android)"
     echo
     echo -e "tasks:"
@@ -252,6 +252,13 @@ function main {
                 ;;
             --arm_lang=*)
                 ARM_LANG="${i#*=}"
+                if [ ${ARM_LANG} == "clang" ]; then
+                     set +x
+                     echo
+                     echo -e "error: only support gcc now, clang will be supported in future."
+                     echo
+                     exit 1
+                fi
                 shift
                 ;;
             --android_stl=*)