1 files changed, 114 insertions, 0 deletions
diff --git a/compiler/luci/pass/src/RemoveRedundantDequantizePass.test.cpp b/compiler/luci/pass/src/RemoveRedundantDequantizePass.test.cpp
new file mode 100644
index 000000000..adb2f14a4
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+++ b/compiler/luci/pass/src/RemoveRedundantDequantizePass.test.cpp
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2022 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/RemoveRedundantDequantizePass.h"
+
+#include <luci/IR/CircleNodes.h>
+
+#include <luci/test/TestIOGraph.h>
+
+#include <gtest/gtest.h>
+
+namespace
+{
+
+using namespace luci::test;
+
+class DequantizeGraphlet
+{
+public:
+  DequantizeGraphlet() = default;
+
+public:
+  void init(loco::Graph *g)
+  {
+    _dequantize = g->nodes()->create<luci::CircleDequantize>();
+    _dequantize->dtype(loco::DataType::FLOAT32);
+    _dequantize->name("dequantize");
+  }
+
+protected:
+  luci::CircleDequantize *_dequantize = nullptr;
+};
+
+class RedundantDequantizeGraph : public TestIOGraph, public DequantizeGraphlet
+{
+public:
+  RedundantDequantizeGraph() = default;
+
+public:
+  void init(void)
+  {
+    TestIOGraph::init({1}, {1});
+    DequantizeGraphlet::init(g());
+
+    _dequantize->input(input());
+
+    output()->from(_dequantize);
+  }
+
+  void init_u8_input(void)
+  {
+    TestIOGraph::init({1}, {1});
+    DequantizeGraphlet::init(g());
+
+    // Use u8 input (dequantize is not redundant anymore)
+    input()->dtype(loco::DataType::U8);
+    {
+      auto qparam = std::make_unique<luci::CircleQuantParam>();
+      qparam->scale = {1};
+      qparam->zerop = {1};
+      input()->quantparam(std::move(qparam));
+    }
+
+    _dequantize->input(input());
+
+    output()->from(_dequantize);
+  }
+};
+
+} // namespace
+
+TEST(RemoveRedundantDequantizePass, single_redundant_dequantize)
+{
+  RedundantDequantizeGraph g;
+  luci::RemoveRedundantDequantizePass pass;
+
+  g.init();
+
+  EXPECT_TRUE(pass.run(g.g()));
+
+  int count = 0;
+  for (auto node : loco::active_nodes(loco::output_nodes(g.g())))
+  {
+    if (dynamic_cast<luci::CircleDequantize *>(node))
+    {
+      count++;
+    }
+  }
+
+  ASSERT_EQ(0, count);
+}
+
+TEST(RemoveRedundantDequantizePass, wrong_dtype_NEG)
+{
+  RedundantDequantizeGraph g;
+  luci::RemoveRedundantDequantizePass pass;
+
+  g.init_u8_input();
+
+  EXPECT_FALSE(pass.run(g.g()));
+}