1 files changed, 69 insertions, 0 deletions
diff --git a/compiler/luci/pass/src/RemoveFakeQuantPass.cpp b/compiler/luci/pass/src/RemoveFakeQuantPass.cpp
new file mode 100644
index 000000000..adc0aa480
--- /dev/null
+++ b/compiler/luci/pass/src/RemoveFakeQuantPass.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2021 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 "luci/Pass/RemoveFakeQuantPass.h"
+
+#include <luci/IR/CircleNodes.h>
+
+namespace
+{
+
+void remove_fake_quant(luci::CircleFakeQuant *fakequant)
+{
+  assert(fakequant != nullptr);
+
+  auto input_node = loco::must_cast<luci::CircleNode *>(fakequant->inputs());
+
+  replace(fakequant).with(input_node);
+}
+
+} // namespace
+
+namespace luci
+{
+/**
+ * BEFORE
+ *
+ *    [CircleNode]
+ *          |
+ *    [CircleFakeQuant]
+ *          |
+ *    [CircleNode]
+ *
+ * AFTER
+ *
+ *    [CircleNode]
+ *          |
+ *    [CircleNode]   [CircleFakeQuant]
+ *
+ * CircleFakeQuant OP will be removed from the output graph
+ */
+bool RemoveFakeQuantPass::run(loco::Graph *g)
+{
+  bool changed = false;
+  for (auto node : loco::active_nodes(loco::output_nodes(g)))
+  {
+    auto target_node = dynamic_cast<luci::CircleFakeQuant *>(node);
+    if (target_node != nullptr)
+    {
+      remove_fake_quant(target_node);
+      changed = true;
+    }
+  }
+  return changed;
+}
+
+} // namespace luci