From c088a40df20a80c310cde4c817ba4f306988e1e7 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=EB=B0=95=EC=84=B8=ED=9D=AC/On-Device=20Lab=28SR=29/Princip?=
 =?utf8?q?al=20Engineer/=EC=82=BC=EC=84=B1=EC=A0=84=EC=9E=90?=
 <saehie.park@samsung.com>
Date: Tue, 2 Jul 2019 16:45:38 +0900
Subject: [PATCH] [moco/tf] Introduce TFOptimizier (#4049)

This will introduce TFOptimizier to provide transformations with TensorFlow Dialects

Signed-off-by: SaeHie Park <saehie.park@samsung.com>
---
 contrib/moco-tf/src/TFOptimizer.cpp      | 43 ++++++++++++++++++++++++++++++++
 contrib/moco-tf/src/TFOptimizer.h        | 36 ++++++++++++++++++++++++++
 contrib/moco-tf/src/TFOptimizer.test.cpp | 33 ++++++++++++++++++++++++
 3 files changed, 112 insertions(+)
 create mode 100644 contrib/moco-tf/src/TFOptimizer.cpp
 create mode 100644 contrib/moco-tf/src/TFOptimizer.h
 create mode 100644 contrib/moco-tf/src/TFOptimizer.test.cpp

diff --git a/contrib/moco-tf/src/TFOptimizer.cpp b/contrib/moco-tf/src/TFOptimizer.cpp
new file mode 100644
index 0000000..f1380d3
--- /dev/null
+++ b/contrib/moco-tf/src/TFOptimizer.cpp
@@ -0,0 +1,43 @@
+/*
+ * 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 "TFOptimizer.h"
+
+#include "Knob.h"
+#include "Phase.h"
+#include "Transforms.h"
+
+#include <stdex/Memory.h>
+
+namespace moco
+{
+namespace tf
+{
+
+void TFOptimizer::optimize(loco::Graph *g) const
+{
+  moco::tf::Phase phase;
+
+  /* TRANSFORM DECLARATION BEGIN */
+
+  /* TRANSFORM DECLARATION END */
+
+  moco::tf::PhaseRunner<moco::tf::PhaseStrategy::Saturate> phase_runner{g};
+  phase_runner.run(phase);
+}
+
+} // namespace tf
+} // namespace moco
diff --git a/contrib/moco-tf/src/TFOptimizer.h b/contrib/moco-tf/src/TFOptimizer.h
new file mode 100644
index 0000000..69ab74d
--- /dev/null
+++ b/contrib/moco-tf/src/TFOptimizer.h
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+#ifndef __TF_OPTIMIZER_H__
+#define __TF_OPTIMIZER_H__
+
+#include <loco.h>
+
+namespace moco
+{
+namespace tf
+{
+
+class TFOptimizer final
+{
+public:
+  void optimize(loco::Graph *) const;
+};
+
+} // namespace tf
+} // namespace moco
+
+#endif // __TF_OPTIMIZER_H__
diff --git a/contrib/moco-tf/src/TFOptimizer.test.cpp b/contrib/moco-tf/src/TFOptimizer.test.cpp
new file mode 100644
index 0000000..26348f6
--- /dev/null
+++ b/contrib/moco-tf/src/TFOptimizer.test.cpp
@@ -0,0 +1,33 @@
+/*
+ * 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 "TFOptimizer.h"
+
+#include <loco.h>
+
+#include <gtest/gtest.h>
+
+// TFOptimizer SHOULD NOT crash even though a given graph is empty
+TEST(TFOptimizer, empty_graph)
+{
+  moco::tf::TFOptimizer tfo;
+
+  loco::Graph g;
+
+  tfo.optimize(&g);
+
+  SUCCEED();
+}
-- 
2.7.4