1 files changed, 74 insertions, 0 deletions
diff --git a/compiler/moco-tf/src/Canonicalization/TFPushCanonicalizer.cpp b/compiler/moco-tf/src/Canonicalization/TFPushCanonicalizer.cpp
new file mode 100644
index 000000000..081e0e5f9
--- /dev/null
+++ b/compiler/moco-tf/src/Canonicalization/TFPushCanonicalizer.cpp
@@ -0,0 +1,74 @@
+/*
+ * 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 "TFPushCanonicalizer.h"
+
+#include <moco/IR/TFDialect.h>
+
+#include <stdex/Memory.h>
+
+namespace
+{
+
+bool canonicalize_push(loco::Graph *graph, moco::TFPush *node)
+{
+  /**
+   * @note This will replace TFRelu node with Canonical ReLU
+   *
+   *       Before
+   *                 A --- TFPush
+   *       After
+   *                    +- TFPush
+   *                    |
+   *                 A -+- Push
+   *
+   *       Where
+   *                 A : from of TFPush
+   *                 TFPush will have no GraphOutputIndex
+   *                 Push will have GraphOutputIndex that from TFPush
+   */
+
+  auto push_node = graph->nodes()->create<loco::Push>();
+
+  auto node_A = node->from();
+
+  // update connections
+  push_node->from(node_A);
+
+  // update output index
+  push_node->index(node->index());
+  node->index_reset();
+
+  // replace node
+  replace(node).with(push_node);
+
+  return true;
+}
+
+} // namespace
+
+namespace moco
+{
+namespace tf
+{
+
+bool TFPushCanonicalizer::transform(TFPush *node) const
+{
+  return canonicalize_push(node->graph(), node);
+}
+
+} // namespace tf
+} // namespace moco