summaryrefslogtreecommitdiff
path: root/compiler/exo/src/Conversion/AvgPool2DConverter.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'compiler/exo/src/Conversion/AvgPool2DConverter.cpp')
-rw-r--r--compiler/exo/src/Conversion/AvgPool2DConverter.cpp79
1 files changed, 79 insertions, 0 deletions
diff --git a/compiler/exo/src/Conversion/AvgPool2DConverter.cpp b/compiler/exo/src/Conversion/AvgPool2DConverter.cpp
new file mode 100644
index 000000000..a95518ac6
--- /dev/null
+++ b/compiler/exo/src/Conversion/AvgPool2DConverter.cpp
@@ -0,0 +1,79 @@
+/*
+ * 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 "AvgPool2DConverter.h"
+
+#include "Dialect/IR/TFLNodes.h"
+
+#include "GraphBlock.h"
+#include "Check.h"
+
+#include <loco.h>
+
+namespace exo
+{
+/**
+ * @brief Converts loco::AvgPool2D to locoex::TFLAveragePool2D
+ *
+ * How it works: (note: ten->fea means input: tensor, output: feature)
+ *
+ * Before:
+ * Foo ---- FeatureEncode ---- AvgPool2D ---- FeatureDecode ---- Bar
+ * ten->ten ten->fea fea->fea fea->ten ten->ten
+ *
+ * After: AvgPool2D
+ * /
+ * Foo -- FeatureEncode - FeatureDecode - TFLAvgPool2D - FeatureEncode - FeatureDecode -- Bar
+ * ten->ten ten->fea fea->ten ten->ten ten->fea fea->ten ten->ten
+ *
+ * @note This method replaces AvgPool2D with "FeatureDecode -- TFLAvgPool2D -- FeatureEncode".
+ * Redundant nodes will be removed during transforms.
+ */
+bool AvgPool2DConverter::convert(loco::AvgPool2D *origin)
+{
+ auto *graph = origin->graph();
+
+ auto dec = make_feature_decode<FeatureLayout::NHWC>(origin->ifm());
+ auto tfl_average = graph->nodes()->create<locoex::TFLAveragePool2D>();
+ {
+ tfl_average->value(dec);
+
+ // set attributes
+ tfl_average->stride()->w(origin->stride()->horizontal());
+ tfl_average->stride()->h(origin->stride()->vertical());
+
+ tfl_average->filter()->w(origin->window()->horizontal());
+ tfl_average->filter()->h(origin->window()->vertical());
+
+ auto pad = origin->pad();
+ if (pad->bottom() == 0 && pad->top() == 0 && pad->left() == 0 && pad->right() == 0)
+ tfl_average->padding(locoex::Padding::VALID);
+ else
+ // TODO This is necessary, but not sufficient condition. More rigorous check required
+ tfl_average->padding(locoex::Padding::SAME);
+
+ tfl_average->fusedActivationFunction(locoex::FusedActFunc::NONE);
+ }
+ auto enc = make_feature_encode<FeatureLayout::NHWC>(tfl_average);
+
+ // replace canonical node
+ loco::replace(origin).with(enc);
+ origin->ifm(nullptr);
+
+ return true;
+}
+
+} // namespace exo