diff --git a/lite/operators/conv_op.cc b/lite/operators/conv_op.cc
index 9ae52d1cb6a406dc8d1059ad97f3757dbc0a31fa..d9c0ecb4fd8457782ac90850b8b6a002c7dfcffe 100644
--- a/lite/operators/conv_op.cc
+++ b/lite/operators/conv_op.cc
@@ -52,12 +52,12 @@ inline int ConvOutputSize(int input_size,
   return output_size;
 }
 
-void UpdatePaddingAndDilation(std::vector<int>* paddings,
-                              std::vector<int>* dilations,
-                              const std::vector<int>& strides,
-                              const std::string padding_algorithm,
-                              const lite::DDim data_dims,
-                              const lite::DDim& ksize) {
+inline void UpdatePaddingAndDilation(std::vector<int>* paddings,
+                                     std::vector<int>* dilations,
+                                     const std::vector<int>& strides,
+                                     const std::string padding_algorithm,
+                                     const lite::DDim data_dims,
+                                     const lite::DDim& ksize) {
   // when padding_desc is "VALID" or "SAME"
   if (padding_algorithm == "SAME") {
     for (size_t i = 0; i < strides.size(); ++i) {
diff --git a/lite/tests/kernels/reduce_sum_compute_test.cc b/lite/tests/kernels/reduce_sum_compute_test.cc
index 9cfe213750b1191c1ef8fe7fba1b1c1035c2ae42..644d761de06fd7f117e781d5146812b7a8ae92d8 100644
--- a/lite/tests/kernels/reduce_sum_compute_test.cc
+++ b/lite/tests/kernels/reduce_sum_compute_test.cc
@@ -196,7 +196,7 @@ class ReduceSumComputeTester : public arena::TestCase {
   std::vector<int> dim_{0};
   bool keep_dim_ = false;
   bool reduce_all_ = false;
-  DDim x_dims_{{3, 2, 3, 4}};
+  DDim x_dims_;
 
  public:
   ReduceSumComputeTester(const Place& place,
@@ -255,39 +255,76 @@ class ReduceSumComputeTester : public arena::TestCase {
     out->Resize(DDim(out_dims));
 
     auto* out_data = out->mutable_data<float>();
-    int in_n = x_dims_[0];
-    int in_c = x_dims_[1];
-    int in_h = x_dims_[2];
-    int in_w = x_dims_[3];
+    if (x_dims_.size() == 4) {
+      int in_n = x_dims_[0];
+      int in_c = x_dims_[1];
+      int in_h = x_dims_[2];
+      int in_w = x_dims_[3];
 
-    if (reduce_all_) {
-      reduce_sum_all(x_data, out_data, in_n, in_c, in_h, in_w);
-    } else if (dim_.size() == 1) {
-      switch (dim_[0]) {
-        case 0:
-          reduce_sum_n(x_data, out_data, in_n, in_c, in_h, in_w);
-          break;
-        case 1:
-          reduce_sum_c(x_data, out_data, in_n, in_c, in_h, in_w);
-          break;
-        case 2:
-          reduce_sum_h(x_data, out_data, in_n, in_c, in_h, in_w);
-          break;
-        case 3:
-          reduce_sum_w(x_data, out_data, in_n, in_c, in_h, in_w);
-          break;
-        default:
-          LOG(FATAL) << "error!!!";
+      if (reduce_all_) {
+        reduce_sum_all(x_data, out_data, in_n, in_c, in_h, in_w);
+      } else if (dim_.size() == 1) {
+        switch (dim_[0]) {
+          case 0:
+            reduce_sum_n(x_data, out_data, in_n, in_c, in_h, in_w);
+            break;
+          case 1:
+            reduce_sum_c(x_data, out_data, in_n, in_c, in_h, in_w);
+            break;
+          case 2:
+            reduce_sum_h(x_data, out_data, in_n, in_c, in_h, in_w);
+            break;
+          case 3:
+            reduce_sum_w(x_data, out_data, in_n, in_c, in_h, in_w);
+            break;
+          default:
+            LOG(FATAL) << "error!!!";
+        }
+      } else if (dim_.size() == 2) {
+        if (dim_[0] == 0 && dim_[1] == 1) {
+          reduce_sum_nc(x_data, out_data, in_n, in_c, in_h, in_w);
+        } else if (dim_[0] == 1 && dim_[1] == 2) {
+          reduce_sum_ch(x_data, out_data, in_n, in_c, in_h, in_w);
+        } else if (dim_[0] == 2 && dim_[1] == 3) {
+          reduce_sum_hw(x_data, out_data, in_n, in_c, in_h, in_w);
+        } else {
+          LOG(FATAL) << "invalid dims_!!";
+        }
       }
-    } else if (dim_.size() == 2) {
-      if (dim_[0] == 0 && dim_[1] == 1) {
-        reduce_sum_nc(x_data, out_data, in_n, in_c, in_h, in_w);
-      } else if (dim_[0] == 1 && dim_[1] == 2) {
-        reduce_sum_ch(x_data, out_data, in_n, in_c, in_h, in_w);
-      } else if (dim_[0] == 2 && dim_[1] == 3) {
-        reduce_sum_hw(x_data, out_data, in_n, in_c, in_h, in_w);
-      } else {
-        LOG(FATAL) << "invalid dims_!!";
+    } else {
+      if (dim_.size() == 1 && !reduce_all_) {
+        switch (dim_[0]) {
+          case 0:
+            for (int i = 0; i < x_dims_[1]; i++) {
+              for (int j = 0; j < x_dims_[2]; j++) {
+                out_data[i * x_dims_[2] + j] =
+                    i * x_dims_[0] * x_dims_[2] + j * x_dims_[0] +
+                    x_dims_[0] * (x_dims_[0] - 1) * x_dims_[1] * x_dims_[2] / 2;
+              }
+            }
+            break;
+          case 1:
+            for (int i = 0; i < x_dims_[0]; i++) {
+              for (int j = 0; j < x_dims_[2]; j++) {
+                out_data[i * x_dims_[2] + j] =
+                    i * x_dims_[1] * x_dims_[1] * x_dims_[2] + j * x_dims_[1] +
+                    x_dims_[1] * (x_dims_[1] - 1) * x_dims_[2] / 2;
+              }
+            }
+            break;
+          case 2:
+            for (int i = 0; i < x_dims_[0]; i++) {
+              for (int j = 0; j < x_dims_[1]; j++) {
+                out_data[i * x_dims_[1] + j] =
+                    i * x_dims_[1] * x_dims_[2] * x_dims_[2] +
+                    j * x_dims_[2] * x_dims_[2] +
+                    x_dims_[2] * (x_dims_[2] - 1) / 2;
+              }
+            }
+            break;
+          default:
+            LOG(FATAL) << "error!!!";
+        }
       }
     }
   }
@@ -333,6 +370,21 @@ void test_reduce_sum(Place place) {
       }
     }
   }
+
+  std::vector<std::vector<int>> reduce_dimm{{0}, {1}, {2}};
+  for (auto dim : reduce_dimm) {
+    for (auto c : {1, 3}) {
+      for (auto h : {1, 3}) {
+        for (auto w : {1, 4}) {
+          auto x_dims = DDim(std::vector<int64_t>({c, h, w}));
+          std::unique_ptr<arena::TestCase> tester(new ReduceSumComputeTester(
+              place, "def", dim, false, false, x_dims));
+          arena::Arena arena(std::move(tester), place, 2e-5);
+          arena.TestPrecision();
+        }
+      }
+    }
+  }
 }
 
 TEST(ReduceSum, precision) {