From 319534b003a01f22b70f7e1941d8d5a652ba6536 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=EB=B0=95=EC=B2=9C=EA=B5=90/On-Device=20Lab=28SR=29/Enginee?=
 =?utf8?q?r/=EC=82=BC=EC=84=B1=EC=A0=84=EC=9E=90?= <ch.bahk@samsung.com>
Date: Thu, 19 Sep 2019 14:21:42 +0900
Subject: [PATCH] [moco-tf] Basic structure for Conv2DBackpropInput
 canonicalize (#7627)

This commit adds basic structure for TFConv2DBackpropInput canonicalize
stage.

Signed-off-by: Cheongyo Bahk <ch.bahk@samsung.com>
---
 .../Conv2DBackpropInputCanonicalizer.cpp           | 61 ++++++++++++++++++++++
 .../Conv2DBackpropInputCanonicalizer.h             | 42 +++++++++++++++
 2 files changed, 103 insertions(+)
 create mode 100644 compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.cpp
 create mode 100644 compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.h

diff --git a/compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.cpp b/compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.cpp
new file mode 100644
index 0000000..a804ceb
--- /dev/null
+++ b/compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.cpp
@@ -0,0 +1,61 @@
+/*
+ * 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 "Conv2DBackpropInputCanonicalizer.h"
+
+#include "Dialect/TFDialect.h"
+#include "Dialect/TFNodes.h"
+
+namespace
+{
+
+bool canonicalize_conv2d_backprop_input(loco::Graph *graph,
+                                        moco::tf::TFConv2DBackpropInput *conv2d_backprop)
+{
+  // TODO Implement!
+  return false;
+}
+
+} // namespace
+
+namespace moco
+{
+namespace tf
+{
+
+bool Conv2DBackpropInputCanonicalizer::run(loco::Graph *graph)
+{
+  auto active_nodes = loco::active_nodes(loco::output_nodes(graph));
+  bool changed = false;
+
+  for (auto node : active_nodes)
+  {
+    if (node->dialect() == TFDialect::get())
+    {
+      auto tf_node = dynamic_cast<moco::tf::TFConv2DBackpropInput *>(node);
+      if (tf_node != nullptr)
+      {
+        if (canonicalize_conv2d_backprop_input(graph, tf_node))
+          changed = true;
+      }
+    }
+  }
+
+  return changed;
+}
+
+} // namespace tf
+} // namespace moco
diff --git a/compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.h b/compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.h
new file mode 100644
index 0000000..02bdc48
--- /dev/null
+++ b/compiler/moco-tf/src/Canonicalization/Conv2DBackpropInputCanonicalizer.h
@@ -0,0 +1,42 @@
+/*
+ * 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 __MOCO_TF_CONV2DBACKPROPINPUT_CANONICALIZER_H__
+#define __MOCO_TF_CONV2DBACKPROPINPUT_CANONICALIZER_H__
+
+#include "Transform.h"
+
+#include <loco.h>
+
+namespace moco
+{
+namespace tf
+{
+
+/// @brief  Convert TFConv2DBackpropInput to Canonical TransposedConv2D
+class Conv2DBackpropInputCanonicalizer : public Transform
+{
+public:
+  const char *name(void) const final { return "Conv2DBackpropInputCanonicalizer"; }
+
+public:
+  bool run(loco::Graph *graph) override;
+};
+
+} // namespace tf
+} // namespace moco
+
+#endif // __MOCO_TF_CONV2DBACKPROPINPUT_CANONICALIZER_H__
-- 
2.7.4