1 files changed, 57 insertions, 0 deletions
diff --git a/compiler/mir/include/mir/ops/GatherOp.h b/compiler/mir/include/mir/ops/GatherOp.h
new file mode 100644
index 000000000..899c9f169
--- /dev/null
+++ b/compiler/mir/include/mir/ops/GatherOp.h
@@ -0,0 +1,57 @@
+/*
+ * 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_OPS_GATHER_OP_H_
+#define _MIR_OPS_GATHER_OP_H_
+
+#include "mir/Operation.h"
+
+namespace mir
+{
+namespace ops
+{
+
+/**
+ * @brief Gather operation as defined by ONNX spec.
+ * https://github.com/onnx/onnx/blob/master/docs/Operators.md#Gather
+ * https://www.tensorflow.org/api_docs/python/tf/gather
+ */
+class GatherOp : public Operation
+{
+public:
+  GatherOp(Output *data, Output *indices, int32_t axis)
+      : Operation(Type::gather, {data, indices}), _axis(axis)
+  {
+    inferOutputTypes();
+  }
+
+  Operation *copyWithInputs(const std::vector<Output *> &inputs) override
+  {
+    return new GatherOp(inputs[0], inputs[1], _axis);
+  }
+
+  int32_t getAxis() const { return _axis; }
+
+private:
+  void inferOutputTypes();
+
+  int32_t _axis;
+};
+
+} // namespace ops
+} // namespace mir
+
+#endif //_MIR_OPS_GATHER_OP_H_