From 7c796e273a1566bbdfed6bbd7eb388ce6b139b17 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: Wed, 14 Aug 2019 14:18:05 +0900
Subject: [PATCH] [moco-tf] Introduce TFSquaredDifference IR (#6580)

This will introduce TFSquaredDifference IR and required minimum changes

Signed-off-by: SaeHie Park <saehie.park@samsung.com>
---
 compiler/moco-tf/src/Dialect/TFNodes.h             |  1 +
 compiler/moco-tf/src/Dialect/TFNodes.lst           |  1 +
 compiler/moco-tf/src/IR/TFSquaredDifference.h      | 60 ++++++++++++++++++++++
 .../moco-tf/src/IR/TFSquaredDifference.test.cpp    | 32 ++++++++++++
 .../moco-tf/src/Transforms/FixShapeTransform.cpp   |  7 +++
 5 files changed, 101 insertions(+)
 create mode 100644 compiler/moco-tf/src/IR/TFSquaredDifference.h
 create mode 100644 compiler/moco-tf/src/IR/TFSquaredDifference.test.cpp

diff --git a/compiler/moco-tf/src/Dialect/TFNodes.h b/compiler/moco-tf/src/Dialect/TFNodes.h
index 17ec339..8c3df00 100644
--- a/compiler/moco-tf/src/Dialect/TFNodes.h
+++ b/compiler/moco-tf/src/Dialect/TFNodes.h
@@ -35,6 +35,7 @@
 #include "IR/TFRsqrt.h"
 #include "IR/TFShape.h"
 #include "IR/TFSqrt.h"
+#include "IR/TFSquaredDifference.h"
 #include "IR/TFSqueeze.h"
 #include "IR/TFSub.h"
 
diff --git a/compiler/moco-tf/src/Dialect/TFNodes.lst b/compiler/moco-tf/src/Dialect/TFNodes.lst
index 6590cde..e6eff8a 100644
--- a/compiler/moco-tf/src/Dialect/TFNodes.lst
+++ b/compiler/moco-tf/src/Dialect/TFNodes.lst
@@ -25,5 +25,6 @@ TENSORFLOW_NODE(Reshape, TFReshape)
 TENSORFLOW_NODE(Rsqrt, TFRsqrt)
 TENSORFLOW_NODE(Shape, TFShape)
 TENSORFLOW_NODE(Sqrt, TFSqrt)
+TENSORFLOW_NODE(SquaredDifference, TFSquaredDifference)
 TENSORFLOW_NODE(Squeeze, TFSqueeze)
 TENSORFLOW_NODE(Sub, TFSub)
diff --git a/compiler/moco-tf/src/IR/TFSquaredDifference.h b/compiler/moco-tf/src/IR/TFSquaredDifference.h
new file mode 100644
index 0000000..b0d8051
--- /dev/null
+++ b/compiler/moco-tf/src/IR/TFSquaredDifference.h
@@ -0,0 +1,60 @@
+/*
+ * 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_IR_TFSQUAREDDIFFERENCE_H__
+#define __MOCO_TF_IR_TFSQUAREDDIFFERENCE_H__
+
+#include "Dialect/TFNodeDecl.h"
+
+namespace moco
+{
+namespace tf
+{
+
+/// @note TFSquaredDifference corresponds to the following GraphDef
+/*
+node {
+  name: "SquaredDifference"
+  op: "SquaredDifference"
+  input: "input_x"
+  input: "input_y"
+  attr {
+    key: "T"
+    value {
+      type: DT_FLOAT
+    }
+  }
+}
+*/
+
+class TFSquaredDifference final
+    : public loco::FixedArityNode<2, TFNodeImpl<TFOpcode::SquaredDifference>>
+{
+public:
+  TFSquaredDifference() = default;
+
+public:
+  Node *x(void) const { return at(0)->node(); }
+  void x(Node *node) { at(0)->node(node); }
+
+  Node *y(void) const { return at(1)->node(); }
+  void y(Node *node) { at(1)->node(node); }
+};
+
+} // namespace tf
+} // namespace moco
+
+#endif // __MOCO_TF_IR_TFSQUAREDDIFFERENCE_H__
diff --git a/compiler/moco-tf/src/IR/TFSquaredDifference.test.cpp b/compiler/moco-tf/src/IR/TFSquaredDifference.test.cpp
new file mode 100644
index 0000000..f83d28c
--- /dev/null
+++ b/compiler/moco-tf/src/IR/TFSquaredDifference.test.cpp
@@ -0,0 +1,32 @@
+/*
+ * 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 "IR/TFSquaredDifference.h"
+
+#include "Dialect/TFDialect.h"
+
+#include <gtest/gtest.h>
+
+TEST(TFSquaredDifferenceTest, constructor)
+{
+  moco::tf::TFSquaredDifference sd_node;
+
+  ASSERT_EQ(sd_node.dialect(), moco::tf::TFDialect::get());
+  ASSERT_EQ(sd_node.opcode(), moco::tf::TFOpcode::SquaredDifference);
+
+  ASSERT_EQ(sd_node.x(), nullptr);
+  ASSERT_EQ(sd_node.y(), nullptr);
+}
diff --git a/compiler/moco-tf/src/Transforms/FixShapeTransform.cpp b/compiler/moco-tf/src/Transforms/FixShapeTransform.cpp
index 9f0f135..36f1cef 100644
--- a/compiler/moco-tf/src/Transforms/FixShapeTransform.cpp
+++ b/compiler/moco-tf/src/Transforms/FixShapeTransform.cpp
@@ -1332,6 +1332,13 @@ bool fix_shape(moco::tf::TFSqrt *node)
   return copy_shapedata(x, node);
 }
 
+bool fix_shape(moco::tf::TFSquaredDifference *node)
+{
+  // Output shape is same as the input x
+  auto x = node->x();
+  return copy_shapedata(x, node);
+}
+
 bool fix_shape(moco::tf::TFSqueeze *node)
 {
   auto shapedata = node->annot<ShapeInferenceData>();
-- 
2.7.4