diff --git a/tensorflow/contrib/boosted_trees/lib/utils/dropout_utils_test.cc b/tensorflow/contrib/boosted_trees/lib/utils/dropout_utils_test.cc
index 02f972c8e00..1067fe409cf 100644
--- a/tensorflow/contrib/boosted_trees/lib/utils/dropout_utils_test.cc
+++ b/tensorflow/contrib/boosted_trees/lib/utils/dropout_utils_test.cc
@@ -195,9 +195,6 @@ TEST_F(DropoutUtilsTest, DropoutSeedTest) {
     std::vector<int32> dropped_trees_2;
     std::vector<float> original_weights_2;
 
-    DecisionTreeEnsembleConfig new_ensemble_1;
-    DecisionTreeEnsembleConfig new_ensemble_2;
-
     TF_EXPECT_OK(DropoutUtils::DropOutTrees(
         kSeed + 1, config, trees_not_to_drop, weights_, &dropped_trees_1,
         &original_weights_1));
@@ -219,8 +216,6 @@ TEST_F(DropoutUtilsTest, DropoutSeedTest) {
     std::vector<int32> dropped_trees_2;
     std::vector<float> original_weights_2;
 
-    DecisionTreeEnsembleConfig new_ensemble_1;
-    DecisionTreeEnsembleConfig new_ensemble_2;
 
     TF_EXPECT_OK(DropoutUtils::DropOutTrees(kSeed, config, trees_not_to_drop,
                                             weights_, &dropped_trees_1,
@@ -264,7 +259,6 @@ TEST_F(DropoutUtilsTest, InvalidConfigTest) {
     config.set_dropout_probability(0.5);
     config.set_probability_of_skipping_dropout(-10);
 
-    DecisionTreeEnsembleConfig new_ensemble;
     EXPECT_FALSE(DropoutUtils::DropOutTrees(kSeed, config, trees_not_to_drop,
                                             weights_, &dropped_trees,
                                             &original_weights)
@@ -276,7 +270,6 @@ TEST_F(DropoutUtilsTest, InvalidConfigTest) {
     config.set_dropout_probability(0.5);
     config.set_probability_of_skipping_dropout(1.2);
 
-    DecisionTreeEnsembleConfig new_ensemble;
     EXPECT_FALSE(DropoutUtils::DropOutTrees(kSeed, config, trees_not_to_drop,
                                             weights_, &dropped_trees,
                                             &original_weights)
diff --git a/tensorflow/contrib/fused_conv/kernels/fused_conv2d_bias_activation_op.cc b/tensorflow/contrib/fused_conv/kernels/fused_conv2d_bias_activation_op.cc
index 94c2e61eb86..57e4bae3b62 100644
--- a/tensorflow/contrib/fused_conv/kernels/fused_conv2d_bias_activation_op.cc
+++ b/tensorflow/contrib/fused_conv/kernels/fused_conv2d_bias_activation_op.cc
@@ -715,7 +715,6 @@ void LaunchFusedConv2DBiasActivationOp<GPUDevice, T, BiasType, ScaleType>::
                           &extra_left_padding, &extra_right_padding);
     if (extra_top_padding != 0 || extra_bottom_padding != 0 ||
         extra_left_padding != 0 || extra_right_padding != 0) {
-      Tensor transformed_input;
       const int new_conv_input_rows =
           conv_input_rows + extra_top_padding + extra_bottom_padding;
       const int new_conv_input_cols =
diff --git a/tensorflow/contrib/verbs/rdma.cc b/tensorflow/contrib/verbs/rdma.cc
index b77f61e2e7b..b69c7ca7b14 100644
--- a/tensorflow/contrib/verbs/rdma.cc
+++ b/tensorflow/contrib/verbs/rdma.cc
@@ -1622,8 +1622,6 @@ void RdmaTensorRequest::RecvTensorContent() {
               << ": Received tensor content #" << index_ << ": " << key_
               << " (Size: 0x" << std::hex << message_size << ")";
 
-  Tensor val;
-
 #if GOOGLE_CUDA
   if (proxy_tensor_ != nullptr) {
     CountCopies(key_, (void*)DMAHelper::base(proxy_tensor_),