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diff --git a/compiler/exo/src/Conversion/TensorReduceConverter.cpp b/compiler/exo/src/Conversion/TensorReduceConverter.cpp
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+/*
+ * Copyright (c) 2019 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.
+ */
+
+#include "TensorReduceConverter.h"
+
+#include "Dialect/IR/TFLNodes.h"
+#include "Check.h"
+
+#include <oops/InternalExn.h>
+
+#include <loco.h>
+#include <loco/Service/ShapeInference.h>
+
+namespace
+{
+
+/**
+ * @brief Convert given TensorReduce as TFLMean
+ *
+ * <Before>
+ * In --- loco::TensorReduce --- Out(s)
+ *
+ * <After>
+ * In -------- locoex::TFLMean --- Out(s)
+ * /
+ * TFLConst ---
+ * (reduction indices)
+ */
+bool convert_as_mean(loco::TensorReduce *origin)
+{
+ EXO_ASSERT(origin->func() == loco::ReduceFunc::Mean, "func should be Mean for this helper");
+ EXO_ASSERT(origin->input(), "TensorReduce has no input");
+
+ auto *graph = origin->graph();
+
+ // Make reduction indicies TFLConst node
+ auto reduction = graph->nodes()->create<locoex::TFLConst>();
+ {
+ auto input_rank = loco::shape_get(origin->input()).as<loco::TensorShape>().rank();
+
+ std::vector<int32_t> red_vec;
+ for (uint32_t axis = 0; axis < input_rank; ++axis)
+ if (origin->axes()->defined(axis))
+ red_vec.push_back(static_cast<int32_t>(axis));
+
+ const loco::DataType S32 = loco::DataType::S32;
+
+ reduction->dtype(S32);
+ reduction->rank(1);
+ reduction->dim(0) = red_vec.size();
+ reduction->size<S32>(red_vec.size());
+ for (uint32_t i = 0; i < red_vec.size(); ++i)
+ reduction->at<S32>(i) = red_vec.at(i);
+ }
+
+ // Make TFLMean node to replace
+ auto mean = graph->nodes()->create<locoex::TFLMean>();
+ mean->input(origin->input());
+ mean->reduction_indices(reduction);
+ mean->keep_dims(true); // Canonical TensorReduce always keep dimensions
+
+ // replace canonical node
+ loco::replace(origin).with(mean);
+ origin->input(nullptr);
+
+ return true;
+}
+
+} // namespace
+
+namespace exo
+{
+
+bool TensorReduceConverter::convert(loco::TensorReduce *origin)
+{
+ if (origin->func() == loco::ReduceFunc::Mean)
+ return convert_as_mean(origin);
+ else
+ INTERNAL_EXN_V("Unsupported ReduceFunc", oops::to_uint32(origin->func()));
+}
+
+} // namespace exo