1 files changed, 43 insertions, 0 deletions
diff --git a/tensorflow/core/kernels/dense_update_ops.h b/tensorflow/core/kernels/dense_update_ops.h
new file mode 100644
index 0000000000..d32c9a4af2
--- /dev/null
+++ b/tensorflow/core/kernels/dense_update_ops.h
@@ -0,0 +1,43 @@
+#ifndef TENSORFLOW_KERNELS_DENSE_UPDATE_OPS_H_
+#define TENSORFLOW_KERNELS_DENSE_UPDATE_OPS_H_
+
+#include "tensorflow/core/framework/tensor_types.h"
+#include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor"
+
+namespace tensorflow {
+
+enum DenseUpdateType { ADD, SUB, ASSIGN };
+
+namespace functor {
+
+template <typename Device, typename T, DenseUpdateType OP>
+struct DenseUpdate;
+
+template <typename Device, typename T>
+struct DenseUpdate<Device, T, ADD> {
+  void operator()(const Device& d, typename TTypes<T>::Flat params,
+                  typename TTypes<T>::ConstFlat update) {
+    params.device(d) += update;
+  }
+};
+
+template <typename Device, typename T>
+struct DenseUpdate<Device, T, SUB> {
+  void operator()(const Device& d, typename TTypes<T>::Flat params,
+                  typename TTypes<T>::ConstFlat update) {
+    params.device(d) -= update;
+  }
+};
+
+template <typename Device, typename T>
+struct DenseUpdate<Device, T, ASSIGN> {
+  void operator()(const Device& d, typename TTypes<T>::Flat params,
+                  typename TTypes<T>::ConstFlat update) {
+    params.device(d) = update;
+  }
+};
+
+}  // end namespace functor
+}  // end namespace tensorflow
+
+#endif  // TENSORFLOW_KERNELS_DENSE_UPDATE_OPS_H_