1 files changed, 62 insertions, 0 deletions
diff --git a/compiler/mir/include/mir/Tensor.h b/compiler/mir/include/mir/Tensor.h
new file mode 100644
index 000000000..5e1f3f236
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+++ b/compiler/mir/include/mir/Tensor.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_H_
+#define _MIR_TENSOR_H_
+
+#include "mir/ExternalRegion.h"
+#include "mir/TensorVariant.h"
+
+namespace mir
+{
+
+template <typename T> class Tensor final
+{
+public:
+  explicit Tensor(const TensorVariant &t) : _proxy(t) {}
+
+  T at(const Index &id) const { return *reinterpret_cast<T *>(this->_proxy.at(id)); }
+
+  T &at(const Index &id) { return *reinterpret_cast<T *>(this->_proxy.at(id)); }
+
+  T atOffset(int32_t offset) const { return *reinterpret_cast<T *>(this->_proxy.atOffset(offset)); }
+
+  T &atOffset(int32_t offset) { return *reinterpret_cast<T *>(this->_proxy.atOffset(offset)); }
+
+  ExternalRegion<T> getRegion(const Index &idx)
+  {
+    // Only last dimension is safe to process continiously
+    auto last_dim = getShape().rank() - 1;
+    auto base = reinterpret_cast<T *>(_proxy.at(idx));
+    auto length = getShape().dim(last_dim) - idx.at(last_dim);
+    return ExternalRegion<T>(base, length);
+  }
+
+  const Shape &getShape() const { return _proxy.getShape(); };
+
+private:
+  const TensorVariant &_proxy;
+};
+
+extern template class Tensor<float>;
+
+extern template class Tensor<double>;
+
+extern template class Tensor<int>;
+
+} // namespace mir
+
+#endif //_MIR_TENSOR_H_