1 files changed, 75 insertions, 0 deletions
diff --git a/compiler/mir/include/mir/Shape.h b/compiler/mir/include/mir/Shape.h
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+++ b/compiler/mir/include/mir/Shape.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_SHAPE_H_
+#define _MIR_SHAPE_H_
+
+#include <initializer_list>
+#include <vector>
+#include <cstdint>
+
+#include "adtidas/SmallVector.h"
+#include "mir/Common.h"
+
+namespace mir
+{
+
+class Shape
+{
+public:
+  static constexpr int32_t autoDim = -1;
+
+  Shape() = default;
+
+  explicit Shape(int32_t rank) : _dims(rank) {}
+
+  Shape(std::initializer_list<int32_t> &&dims) : _dims(std::move(dims)) {}
+
+  explicit Shape(const std::vector<int32_t> &dims) : _dims(std::begin(dims), std::end(dims)) {}
+
+  int32_t rank() const { return static_cast<int32_t>(_dims.size()); }
+
+  void resize(int32_t size);
+
+  int32_t &dim(int32_t axis) noexcept
+  {
+    auto dim = wrap_index(axis, _dims.size());
+    return _dims[dim];
+  };
+
+  int32_t dim(int32_t axis) const noexcept
+  {
+    auto dim = wrap_index(axis, _dims.size());
+    return _dims[dim];
+  }
+
+  int32_t numElements() const;
+
+  bool operator==(const Shape &rhs) const { return _dims == rhs._dims; }
+
+  bool operator!=(const Shape &rhs) const { return !(*this == rhs); }
+
+private:
+  adt::small_vector<int32_t, MAX_DIMENSION_COUNT> _dims;
+};
+
+Shape broadcastShapes(const Shape &lhs_shape, const Shape &rhs_shape);
+
+std::string toString(const Shape &shape);
+
+} // namespace mir
+
+#endif //_MIR_SHAPE_H_