1 files changed, 59 insertions, 0 deletions
diff --git a/compiler/mir/include/mir/TensorUtil.h b/compiler/mir/include/mir/TensorUtil.h
new file mode 100644
index 000000000..757f99f0b
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+++ b/compiler/mir/include/mir/TensorUtil.h
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+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _MIR_TENSOR_UTIL_H_
+#define _MIR_TENSOR_UTIL_H_
+
+#include "mir/Index.h"
+#include "mir/ShapeRange.h"
+#include "mir/TensorVariant.h"
+
+#include <cstring>
+
+namespace mir
+{
+
+template <int32_t... Ints> Shape transposeShape(const Shape &shape)
+{
+  assert(sizeof...(Ints) == shape.rank());
+  return {shape.dim(Ints)...};
+}
+
+template <unsigned int... Ints> TensorVariant transposeTensor(const TensorVariant &tensor)
+{
+  const auto &shape = tensor.getShape();
+  Shape transposed_shape{shape.dim(Ints)...};
+
+  auto elem_type = tensor.getElementType();
+  auto elem_size = tensor.getElementSize();
+  TensorType transposed_type(elem_type, transposed_shape);
+  if (tensor.getType().isQuantized())
+    transposed_type.setQuantization(tensor.getType().getQuantization());
+
+  TensorVariant transposed_tensor(transposed_type);
+
+  for (const auto &index : ShapeRange(shape))
+  {
+    Index transposed_index{index.at(Ints)...};
+    std::memcpy(transposed_tensor.at(transposed_index), tensor.at(index), elem_size);
+  }
+
+  return transposed_tensor;
+}
+
+} // namespace mir
+
+#endif //_MIR_TENSOR_UTIL_H_