1 files changed, 28 insertions, 0 deletions
diff --git a/tensorflow/core/kernels/reverse_op.h b/tensorflow/core/kernels/reverse_op.h
new file mode 100644
index 0000000000..bba25f70e8
--- /dev/null
+++ b/tensorflow/core/kernels/reverse_op.h
@@ -0,0 +1,28 @@
+#ifndef TENSORFLOW_KERNELS_REVERSE_OP_H_
+#define TENSORFLOW_KERNELS_REVERSE_OP_H_
+
+#include "tensorflow/core/framework/tensor_types.h"
+#include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor"
+
+namespace tensorflow {
+namespace functor {
+
+// Functor used by MirrorOp to do the computations.
+template <typename Device, typename T, int Dims>
+struct Reverse {
+  void operator()(const Device& d, typename TTypes<T, Dims>::ConstTensor input,
+                  typename TTypes<bool, 1>::ConstTensor dims,
+                  typename TTypes<T, Dims>::Tensor output) {
+    // mirror is in host memory
+    Eigen::array<bool, Dims> reverse_dims;
+    for (int i = 0; i < Dims; ++i) {
+      reverse_dims[i] = dims(i);
+    }
+    output.device(d) = input.reverse(reverse_dims);
+  }
+};
+
+}  // namespace functor
+}  // namespace tensorflow
+
+#endif  // TENSORFLOW_KERNELS_MIRROR_OP_H_