1 files changed, 150 insertions, 0 deletions
diff --git a/compiler/luci/pass/src/ExpandBroadcastConstPass.test.cpp b/compiler/luci/pass/src/ExpandBroadcastConstPass.test.cpp
new file mode 100644
index 000000000..5df1b72dc
--- /dev/null
+++ b/compiler/luci/pass/src/ExpandBroadcastConstPass.test.cpp
@@ -0,0 +1,150 @@
+/*
+ * 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/ExpandBroadcastConstPass.h"
+#include "PassTestGraphs.h"
+
+#include <luci/IR/CircleNodes.h>
+
+#include <limits> // std::numeric_limits
+
+#include <gtest/gtest.h>
+
+namespace
+{
+
+class ExpandBroadcastConstTest : public ::testing::Test
+{
+public:
+  ExpandBroadcastConstTest()
+  {
+    _x = _g.nodes()->create<luci::CircleInput>();
+    _y = _g.nodes()->create<luci::CircleConst>();
+    _add = _g.nodes()->create<luci::CircleAdd>();
+    _output = _g.nodes()->create<luci::CircleOutput>();
+
+    auto graph_input = _g.inputs()->create();
+    graph_input->dtype(loco::DataType::FLOAT32);
+    graph_input->shape({1, H, W, D});
+    _x->index(graph_input->index());
+    _x->dtype(graph_input->dtype());
+    _x->shape({1, H, W, D});
+
+    auto graph_output = _g.outputs()->create();
+    graph_output->dtype(loco::DataType::FLOAT32);
+    graph_output->shape({1, H, W, D});
+    _output->index(graph_output->index());
+    _output->dtype(graph_output->dtype());
+    _output->shape({1, H, W, D});
+
+    _y->dtype(loco::DataType::FLOAT32);
+    _y->shape({1, H, W, 1});
+    _y->size<loco::DataType::FLOAT32>(16);
+
+    _add->dtype(loco::DataType::FLOAT32);
+    _add->fusedActivationFunction(luci::FusedActFunc::NONE);
+    _add->x(_x);
+    _add->y(_y);
+    _add->shape({1, H, W, D});
+
+    _output->from(_add);
+
+    _x->name("input");
+    _output->name("output");
+  }
+
+protected:
+  uint32_t const H = 4;
+  uint32_t const W = 4;
+  uint32_t const D = 3;
+
+protected:
+  loco::Graph _g;
+  luci::CircleAdd *_add = nullptr;
+  luci::CircleInput *_x = nullptr;
+  luci::CircleConst *_y = nullptr;
+  luci::CircleOutput *_output = nullptr;
+};
+
+} // namespace
+
+TEST_F(ExpandBroadcastConstTest, name)
+{
+  luci::ExpandBroadcastConstPass pass;
+  auto const name = pass.name();
+  ASSERT_NE(nullptr, name);
+}
+
+TEST_F(ExpandBroadcastConstTest, remove_broadcast)
+{
+  for (uint32_t i = 0; i < H * W; ++i)
+    _y->at<loco::DataType::FLOAT32>(i) = static_cast<float>(i);
+
+  luci::ExpandBroadcastConstPass pass;
+  ASSERT_TRUE(pass.run(&_g));
+
+  auto broadcasted_const = dynamic_cast<luci::CircleConst *>(_add->y());
+  ASSERT_NE(broadcasted_const, nullptr);
+
+  EXPECT_EQ(broadcasted_const->dtype(), loco::DataType::FLOAT32);
+  EXPECT_EQ(broadcasted_const->dim(1).value(), H);
+  EXPECT_EQ(broadcasted_const->dim(2).value(), W);
+  EXPECT_EQ(broadcasted_const->dim(3).value(), D);
+  EXPECT_EQ(broadcasted_const->size<loco::DataType::FLOAT32>(), H * W * D);
+
+  for (uint32_t i = 0; i < H * W; ++i)
+  {
+    for (uint32_t d = 0; d < D; ++d)
+    {
+      EXPECT_NEAR(broadcasted_const->at<loco::DataType::FLOAT32>(i + H * W * d),
+                  static_cast<float>(i), std::numeric_limits<float>::min());
+    }
+  }
+}
+
+TEST_F(ExpandBroadcastConstTest, remove_broadcast_multiple_successors)
+{
+  auto const circle_sqrt = _g.nodes()->create<luci::CircleSqrt>();
+  circle_sqrt->dtype(loco::DataType::FLOAT32);
+  circle_sqrt->shape({1, H, W, 1});
+  circle_sqrt->x(_y);
+
+  luci::ExpandBroadcastConstPass pass;
+  ASSERT_TRUE(pass.run(&_g));
+
+  auto broadcasted_const = dynamic_cast<luci::CircleConst *>(_add->y());
+  auto original_const = dynamic_cast<luci::CircleConst *>(circle_sqrt->x());
+
+  ASSERT_NE(broadcasted_const, nullptr);
+  EXPECT_EQ(broadcasted_const->dtype(), loco::DataType::FLOAT32);
+  EXPECT_EQ(broadcasted_const->dim(3).value(), D);
+  EXPECT_EQ(broadcasted_const->size<loco::DataType::FLOAT32>(), H * W * D);
+
+  // Check if another successor's node was left intact
+  ASSERT_NE(original_const, nullptr);
+  EXPECT_EQ(original_const->dtype(), loco::DataType::FLOAT32);
+  EXPECT_EQ(original_const->dim(3).value(), 1);
+  EXPECT_EQ(original_const->size<loco::DataType::FLOAT32>(), H * W * 1);
+}
+
+TEST_F(ExpandBroadcastConstTest, broadcast_impossible_NEG)
+{
+  _y->shape({1, H, W, 2});
+  _y->size<loco::DataType::FLOAT32>(H * W * (D - 1));
+
+  luci::ExpandBroadcastConstPass pass;
+  ASSERT_FALSE(pass.run(&_g));
+}