[luci/lang] Add CircleGRU node

compiler/luci/lang/include/luci/IR/CircleNodes.h

@@ -138,6 +138,7 @@
 // Circle only
 #include "Nodes/CircleBCQFullyConnected.h"
 #include "Nodes/CircleBCQGather.h"
+#include "Nodes/CircleGRU.h"
 #include "Nodes/CircleInstanceNorm.h"
 // Virtual nodes
 #include "Nodes/CircleConst.h"

compiler/luci/lang/include/luci/IR/CircleNodes.lst

@@ -52,6 +52,7 @@ CIRCLE_NODE(GATHER_ND, CircleGatherNd)
 CIRCLE_NODE(GELU, CircleGelu)
 CIRCLE_NODE(GREATER, CircleGreater)
 CIRCLE_NODE(GREATER_EQUAL, CircleGreaterEqual)
+CIRCLE_NODE(GRU, CircleGRU)
 CIRCLE_NODE(HARD_SWISH, CircleHardSwish)
 CIRCLE_NODE(IF, CircleIf)
 CIRCLE_NODE(L2_NORMALIZATION, CircleL2Normalize)

compiler/luci/lang/include/luci/IR/Nodes/CircleGRU.h

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2024 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 __LUCI_IR_CIRCLE_GRU_H__
+#define __LUCI_IR_CIRCLE_GRU_H__
+
+#include "luci/IR/CircleNodeDecl.h"
+#include "luci/IR/CircleOpcode.h"
+
+#include "luci/IR/CircleNodeMixins.h"
+
+namespace luci
+{
+
+/**
+ * @brief GRU in Circle
+ */
+class CircleGRU final : public FixedArityNode<6, CircleNodeImpl<CircleOpcode::GRU>>
+{
+public:
+  loco::Node *input(void) const { return at(0)->node(); }
+  void input(loco::Node *node) { at(0)->node(node); }
+
+  loco::Node *hidden_hidden(void) const { return at(1)->node(); }
+  void hidden_hidden(loco::Node *node) { at(1)->node(node); }
+
+  loco::Node *hidden_hidden_bias(void) const { return at(2)->node(); }
+  void hidden_hidden_bias(loco::Node *node) { at(2)->node(node); }
+
+  loco::Node *hidden_input(void) const { return at(3)->node(); }
+  void hidden_input(loco::Node *node) { at(3)->node(node); }
+
+  loco::Node *hidden_input_bias(void) const { return at(4)->node(); }
+  void hidden_input_bias(loco::Node *node) { at(4)->node(node); }
+
+  loco::Node *state(void) const { return at(5)->node(); }
+  void state(loco::Node *node) { at(5)->node(node); }
+
+public:
+  FusedActFunc fusedActivationFunction() const { return _fused_act_fun; }
+  void fusedActivationFunction(FusedActFunc fused_act_fun) { _fused_act_fun = fused_act_fun; }
+
+  bool returnSequences() const { return _return_sequences; }
+  void returnSequences(bool return_sequences) { _return_sequences = return_sequences; }
+
+  bool timeMajor() const { return _time_major; }
+  void timeMajor(bool time_major) { _time_major = time_major; }
+
+private:
+  FusedActFunc _fused_act_fun = FusedActFunc::NONE;
+  bool _return_sequences = false;
+  bool _time_major = false;
+};
+
+} // namespace luci
+
+#endif // __LUCI_IR_CIRCLE_GRU_H__

compiler/luci/lang/src/Nodes/CircleGRU.test.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2024 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/IR/Nodes/CircleGRU.h"
+
+#include "luci/IR/CircleDialect.h"
+#include "luci/IR/CircleNodeVisitor.h"
+
+#include <gtest/gtest.h>
+
+TEST(CircleGRUTest, constructor)
+{
+  luci::CircleGRU gru_node;
+
+  ASSERT_EQ(luci::CircleDialect::get(), gru_node.dialect());
+  ASSERT_EQ(luci::CircleOpcode::GRU, gru_node.opcode());
+
+  ASSERT_EQ(nullptr, gru_node.input());
+  ASSERT_EQ(nullptr, gru_node.hidden_hidden());
+  ASSERT_EQ(nullptr, gru_node.hidden_hidden_bias());
+  ASSERT_EQ(nullptr, gru_node.hidden_input());
+  ASSERT_EQ(nullptr, gru_node.hidden_input_bias());
+  ASSERT_EQ(nullptr, gru_node.state());
+}
+
+TEST(CircleGRUTest, input_NEG)
+{
+  luci::CircleGRU gru_node;
+  luci::CircleGRU node;
+
+  gru_node.input(&node);
+  ASSERT_NE(nullptr, gru_node.input());
+
+  gru_node.input(nullptr);
+  ASSERT_EQ(nullptr, gru_node.input());
+}
+
+TEST(CircleGRUTest, arity_NEG)
+{
+  luci::CircleGRU gru_node;
+
+  ASSERT_NO_THROW(gru_node.arg(0));
+  ASSERT_NO_THROW(gru_node.arg(1));
+  ASSERT_NO_THROW(gru_node.arg(2));
+  ASSERT_NO_THROW(gru_node.arg(3));
+  ASSERT_NO_THROW(gru_node.arg(4));
+  ASSERT_NO_THROW(gru_node.arg(5));
+  ASSERT_THROW(gru_node.arg(6), std::out_of_range);
+}
+
+TEST(CircleGRUTest, visit_mutable_NEG)
+{
+  struct TestVisitor final : public luci::CircleNodeMutableVisitor<void>
+  {
+  };
+
+  luci::CircleGRU gru_node;
+
+  TestVisitor tv;
+  ASSERT_THROW(gru_node.accept(&tv), std::exception);
+}
+
+TEST(CircleGRUTest, visit_NEG)
+{
+  struct TestVisitor final : public luci::CircleNodeVisitor<void>
+  {
+  };
+
+  luci::CircleGRU gru_node;
+
+  TestVisitor tv;
+  ASSERT_THROW(gru_node.accept(&tv), std::exception);
+}