diff --git a/tests/unittest_cpp/CMakeLists.txt b/tests/unittest_cpp/CMakeLists.txt
index efc575297bb62408bda3801d0cfa4954d86c9250..8148c8b5f97a23fb414639fff9c1949bec4a6ad1 100644
--- a/tests/unittest_cpp/CMakeLists.txt
+++ b/tests/unittest_cpp/CMakeLists.txt
@@ -16,6 +16,7 @@ file(
   unittest_main.cc
   src/base/*.cc
   src/base_test/*.cc
+  src/pass_test_base/*.cc
   src/pass_test/*.cc)
 
 link_directories(${CMAKE_BINARY_DIR}/googletest/googlemock/gtest)
diff --git a/tests/unittest_cpp/include/base/dump_helper.h b/tests/unittest_cpp/include/base/dump_helper.h
index a9a61cbde253a73eb40a41efe1255904dd26ce12..7c3244aa6bc6332745da3bf61e948aed0e38ccb5 100644
--- a/tests/unittest_cpp/include/base/dump_helper.h
+++ b/tests/unittest_cpp/include/base/dump_helper.h
@@ -29,7 +29,7 @@ class UTRegxMatch {
   static bool RegxMatchHex(const std::string &str);
 
   static const std::string pattern_hex_;
-};  // UTRegxMatch
+};  // class UTRegxMatch
 
 class UTDumpHelper {
  public:
@@ -38,6 +38,6 @@ class UTDumpHelper {
 
   static std::string Dump(const air::NodeRef &node);
   static bool RegxMatchPlaceholder(const std::string &str, const std::string &name);
-};  // UTDumpHelper
+};  // class UTDumpHelper
 }  // namespace akg
 #endif  // UT_BASE_DUMP_HELPER_H_
diff --git a/tests/unittest_cpp/include/base/expr_builder.h b/tests/unittest_cpp/include/base/expr_builder.h
index aaf923abfc998f83023b3568f463e20dd469c93d..24d8b13aaa14f9b62389ddf7abd6dfc5c3068e6b 100644
--- a/tests/unittest_cpp/include/base/expr_builder.h
+++ b/tests/unittest_cpp/include/base/expr_builder.h
@@ -19,6 +19,7 @@
 #include <vector>
 #include "tvm/expr.h"
 #include "tvm/operation.h"
+#include "tvm/tensor.h"
 
 namespace akg {
 class UTExprBuilder {
@@ -26,9 +27,15 @@ class UTExprBuilder {
   UTExprBuilder() = default;
   ~UTExprBuilder() = default;
 
+  static air::Expr IntImm(int64_t value, air::DataType dtype = air::Int(32));
+  static air::Expr UIntImm(uint64_t value, air::DataType dtype = air::UInt(32));
+  static air::Expr BoolImm(bool value);
   static air::Array<air::Expr> CreateShape(const std::vector<int32_t> &shapes);
   static air::Var CreateVar(const std::string &name);
   static air::Array<air::Expr> CreateVars(const std::vector<std::string> &names);
+  static air::Range CreateRange(int32_t min, int32_t max);
+  static air::Region CreateRegion(const std::vector<int32_t> &shapes);
+  static air::Region CreateRegion(const air::Array<air::Expr> &shapes);
   static air::Operation PlaceholderOpNode(
       const std::string &name,
       const std::vector<int32_t> &shapes,
@@ -38,6 +45,18 @@ class UTExprBuilder {
       const std::vector<int32_t> &shapes,
       const std::vector<std::string> &axis_names,
       air::DataType dtype = air::Float(16));
+  static air::Expr ElementOf(
+      const air::Operation &op,
+      const std::vector<std::string> &axis_names);
+  static air::Expr ElementOfPlaceholderOp(
+      const air::Operation &op,
+      const std::vector<std::string> &axis_names);
+  static air::Expr CreateCall(
+      const air::ir::FunctionRef func,
+      air::Array<air::Expr> args,
+      air::ir::Call::CallType call_type = air::ir::Call::Halide,
+      int value_index = 0);
+  static air::Tensor CreateTensorByPlaceholder(const air::Operation op);
 };  // UTExprBuilder
 
 class UTTensorElementHelper {
@@ -46,14 +65,13 @@ class UTTensorElementHelper {
                         const std::string &axis_name_prefix = "ax");
   ~UTTensorElementHelper() = default;
   air::Expr Elem(const std::string &name,
-                  uint32_t dim,
-                  air::DataType dtype = air::Float(16)) const;
+                 uint32_t dim,
+                 air::DataType dtype = air::Float(16)) const;
 
  private:
   std::vector<int32_t> shapes_;
   std::string axis_name_prefix_;
   std::vector<std::string> axis_names_;
-};  // UTTensorElementHelper
-
+};  // class UTTensorElementHelper
 }  // namespace akg
 #endif  // UT_BASE_EXPR_BUILDER_H_
diff --git a/tests/unittest_cpp/include/base/ir_checker.h b/tests/unittest_cpp/include/base/ir_checker.h
new file mode 100644
index 0000000000000000000000000000000000000000..d5168ba1345ea97f4ade419d8f769d015ea305df
--- /dev/null
+++ b/tests/unittest_cpp/include/base/ir_checker.h
@@ -0,0 +1,103 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 UT_IR_CHECKER_H_
+#define UT_IR_CHECKER_H_
+#include <string>
+#include <tuple>
+#include <vector>
+#include <tvm/ir_visitor.h>
+#include "base/dump_helper.h"
+#include "base/expr_builder.h"
+
+namespace akg {
+class UTIRCheckHelper {
+ public:
+  UTIRCheckHelper() = default;
+  ~UTIRCheckHelper() = default;
+  static int64_t GetValueFromImm(const air::Expr &expr);
+};  // class UTIRCheckHelper
+
+class UTProvideChecker : public air::ir::IRVisitor {
+ public:
+  explicit UTProvideChecker(bool ignore_args = false)
+      : ignore_args_(ignore_args) {}
+  ~UTProvideChecker() = default;
+  void Visit_(const air::ir::For *op) override;
+  bool CompareDump(const std::string &dump, const std::string &target);
+
+ protected:
+  bool ignore_args_{false};
+  std::vector<uint64_t> for_count_stack_;
+};  // class UTProvideChecker
+
+class UTProvideCheckerForAssign : public UTProvideChecker {
+ public:
+  explicit UTProvideCheckerForAssign(bool ignore_args = false)
+      : UTProvideChecker(ignore_args) {}
+  ~UTProvideCheckerForAssign() = default;
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> Find(
+      const air::NodeRef &node,
+      const std::string &dump_rhs);
+  void Visit_(const air::ir::Provide *op) override;
+
+ private:
+  std::string dump_rhs_{""};
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs_;
+};  // class UTProvideChecker
+
+class UTProvideCheckerForBinary : public UTProvideChecker {
+ public:
+  enum BinaryOpType : int {
+    kAdd,
+    kSub,
+    kMul,
+    kDiv,
+    kMod,
+  };
+
+  explicit UTProvideCheckerForBinary(bool ignore_args = false)
+      : UTProvideChecker(ignore_args) {}
+  ~UTProvideCheckerForBinary() = default;
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> Find(
+      const air::NodeRef &node,
+      BinaryOpType op_type,
+      const std::string &dump_rhs1,
+      const std::string &dump_rhs2);
+  void Visit_(const air::ir::Provide *op) override;
+
+  template <typename T>
+  void CheckBinary(const air::ir::Provide *op) {
+    const T *expr_binary = op->value.as<T>();
+    if (expr_binary == nullptr) {
+      return;
+    }
+    std::string dump_expr_a = UTDumpHelper::Dump(expr_binary->a);
+    std::string dump_expr_b = UTDumpHelper::Dump(expr_binary->b);
+    if ((dump_rhs1_.empty() || CompareDump(dump_expr_a, dump_rhs1_)) &&
+        (dump_rhs2_.empty() || CompareDump(dump_expr_b, dump_rhs2_))) {
+      air::Expr expr_call = UTExprBuilder::CreateCall(op->func, op->args);
+      infos_lhs_.push_back(std::make_tuple(UTDumpHelper::Dump(expr_call), op, for_count_stack_.back()));
+    }
+  }
+
+ private:
+  BinaryOpType op_type_;
+  std::string dump_rhs1_{""};
+  std::string dump_rhs2_{""};
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs_;
+};  // class UTProvideCheckerForBinary
+}  // namespace akg
+#endif  // UT_IR_CHECKER_H_
diff --git a/tests/unittest_cpp/include/base/stmt_builder.h b/tests/unittest_cpp/include/base/stmt_builder.h
new file mode 100644
index 0000000000000000000000000000000000000000..4d59eed97b3226ad7bc6c5bffb00306a36184ff7
--- /dev/null
+++ b/tests/unittest_cpp/include/base/stmt_builder.h
@@ -0,0 +1,58 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 UT_BASE_STMT_BUILDER_H_
+#define UT_BASE_STMT_BUILDER_H_
+#include <list>
+#include <string>
+#include <vector>
+#include "tvm/ir.h"
+#include "base/expr_builder.h"
+
+namespace akg {
+class UTStmtBuilder {
+ public:
+  UTStmtBuilder() = default;
+  ~UTStmtBuilder() = default;
+  static air::Stmt CreateFor(
+      const std::string &loop_var_name,
+      int32_t min,
+      int32_t extent,
+      air::Stmt body);
+  static air::Stmt CreateRealizeByPlaceholderOp(
+      const air::Operation &op,
+      air::Stmt body);
+  static air::Stmt CreateProvideAssign(
+      air::ir::FunctionRef func_dst,
+      const std::vector<std::string> &vars,
+      air::Expr src,
+      int value_index = 0);
+
+  template <typename T>
+  static air::Stmt CreateProvideBinary(
+      air::ir::FunctionRef func_dst,
+      const std::vector<std::string> &vars,
+      air::Expr src1,
+      air::Expr src2,
+      int value_index = 0) {
+    return air::ir::Provide::make(
+        func_dst,
+        value_index,
+        T::make(src1, src2),
+        UTExprBuilder::CreateVars(vars));
+  }
+};  // class UTStmtBuilder
+}  // namespace akg
+#endif  // UT_BASE_STMT_BUILDER_H_
diff --git a/tests/unittest_cpp/include/pass_test_base/auto_poly_test_base.h b/tests/unittest_cpp/include/pass_test_base/auto_poly_test_base.h
new file mode 100644
index 0000000000000000000000000000000000000000..4fa21dc19b322575a1568914477d82e066f6610d
--- /dev/null
+++ b/tests/unittest_cpp/include/pass_test_base/auto_poly_test_base.h
@@ -0,0 +1,64 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 UT_AUTO_POLY_TEST_BASE_H_
+#define UT_AUTO_POLY_TEST_BASE_H_
+#include <map>
+#include <string>
+#include <gtest/gtest.h>
+#include <tvm/expr.h>
+#include "codegen/util.h"
+#include "contrib/cce_parm/cceconf.h"
+#include "base/expr_builder.h"
+
+namespace akg {
+class AutoPolyTestBase : public ::testing::Test {
+ public:
+  AutoPolyTestBase() = default;
+  ~AutoPolyTestBase() = default;
+  static std::map<std::string, std::string> InitMapMode();
+  void RegisterTensor(const air::Tensor &tensor);
+  void SetRunMode(const std::string &mode);
+  void GlobalAttrSetIsDynamic(bool arg) {
+    global_attrs_.Set("is_dynamic", arg ? UTExprBuilder::IntImm(1, air::Int(1)) :
+                                          UTExprBuilder::IntImm(0, air::Int(1)));
+  }
+
+  void GlobalAttrSetDynamic(bool arg) {
+    global_attrs_.Set("dynamic", arg ? UTExprBuilder::IntImm(1, air::Int(1)) :
+                                       UTExprBuilder::IntImm(0, air::Int(1)));
+  }
+
+  void GlobalAttrSetDumpPassIR(bool arg) {
+    global_attrs_.Set("dump_pass_ir", arg ? UTExprBuilder::IntImm(1, air::Int(1)) :
+                                            UTExprBuilder::IntImm(0, air::Int(1)));
+  }
+
+  void GlobalAttrSetDumpPolyDir(const std::string &path) {
+    global_attrs_.Set("dump_poly_dir", air::ir::StringImm::make(path));
+  }
+
+  void GlobalAttrSetKernalName(const std::string &name) {
+    global_attrs_.Set("kernel_name", air::ir::StringImm::make(name));
+  }
+
+  static std::map<std::string, std::string> map_mode_;
+
+ protected:
+  air::Map<air::Tensor, air::Buffer> binds_;
+  AttrMap global_attrs_;
+};  // class AutoPolyTestBase
+}  // namespace akg
+#endif
diff --git a/tests/unittest_cpp/src/base/expr_builder.cc b/tests/unittest_cpp/src/base/expr_builder.cc
index efad73652d1f33a35c7356e4edee8fadba178553..be870ccbd5da591a2e275ed413f7a74ea061caea 100644
--- a/tests/unittest_cpp/src/base/expr_builder.cc
+++ b/tests/unittest_cpp/src/base/expr_builder.cc
@@ -14,9 +14,22 @@
  * limitations under the License.
  */
 #include <sstream>
+#include <tvm/operation.h>
 #include "base/expr_builder.h"
 
 namespace akg {
+air::Expr UTExprBuilder::IntImm(int64_t value, air::DataType dtype) {
+  return air::IntImm::make(dtype, value);
+}
+
+air::Expr UTExprBuilder::UIntImm(uint64_t value, air::DataType dtype) {
+  return air::ir::UIntImm::make(dtype, value);
+}
+
+air::Expr UTExprBuilder::BoolImm(bool value) {
+  return air::ir::UIntImm::make(air::Bool(), value ? 1 : 0);
+}
+
 air::Array<air::Expr> UTExprBuilder::CreateShape(const std::vector<int32_t> &shapes) {
   air::Array<air::Expr> res;
   for (int32_t shape : shapes) {
@@ -38,6 +51,28 @@ air::Array<air::Expr> UTExprBuilder::CreateVars(const std::vector<std::string> &
   return vars;
 }
 
+air::Region UTExprBuilder::CreateRegion(const std::vector<int32_t> &shapes) {
+  air::Region region;
+  for (int32_t shape : shapes) {
+    region.push_back(CreateRange(0, shape));
+  }
+  return region;
+}
+
+air::Region UTExprBuilder::CreateRegion(const air::Array<air::Expr> &shapes) {
+  air::Region region;
+  for (const air::Expr &shape : shapes) {
+    region.push_back(air::Range::make_by_min_extent(IntImm(0), shape));
+  }
+  return region;
+}
+
+air::Range UTExprBuilder::CreateRange(int32_t min, int32_t max) {
+  air::Integer imm_min = air::IntImm::make(air::Int(32), min);
+  air::Integer imm_max = air::IntImm::make(air::Int(32), max);
+  return air::Range(std::move(imm_min), std::move(imm_max));
+}
+
 air::Operation UTExprBuilder::PlaceholderOpNode(
     const std::string &name,
     const std::vector<int32_t> &shapes,
@@ -60,6 +95,56 @@ air::Expr UTExprBuilder::TensorElement(
       0);                                      // value_index
 }
 
+air::Expr UTExprBuilder::ElementOf(
+    const air::Operation &op,
+    const std::vector<std::string> &axis_names) {
+  if (op->template IsInstance<air::PlaceholderOpNode>()) {
+    return ElementOfPlaceholderOp(op, axis_names);
+  } else {
+    CHECK(false);
+    return air::ir::Any::make();
+  }
+}
+
+air::Expr UTExprBuilder::ElementOfPlaceholderOp(
+    const air::Operation &op,
+    const std::vector<std::string> &axis_names) {
+  const air::PlaceholderOpNode *node = op.as<const air::PlaceholderOpNode>();
+  CHECK(node);
+  return air::ir::Call::make(
+      node->dtype,
+      node->name,
+      CreateVars(axis_names),
+      air::ir::Call::Halide,
+      op,
+      0);
+}
+air::Expr UTExprBuilder::CreateCall(
+  const air::ir::FunctionRef func,
+  air::Array<air::Expr> args,
+  air::ir::Call::CallType call_type,
+  int value_index) {
+  air::DataType type = air::Float(16);
+  const air::OperationNode *node_op = func.as<air::OperationNode>();
+  CHECK(node_op);
+  std::string name = node_op->name;
+  const air::PlaceholderOpNode *node_placeholder = func.as<air::PlaceholderOpNode>();
+  if (node_placeholder != nullptr) {
+    type = node_placeholder->dtype;
+  }
+  return air::ir::Call::make(type, name, args, call_type, func, value_index);
+}
+
+air::Tensor UTExprBuilder::CreateTensorByPlaceholder(const air::Operation op) {
+  const air::PlaceholderOpNode *node = op.as<air::PlaceholderOpNode>();
+  CHECK(node);
+  return air::TensorNode::make(
+      node->shape,
+      node->dtype,
+      op,
+      0);
+}
+
 UTTensorElementHelper::UTTensorElementHelper(const std::vector<int32_t> &shapes,
                                              const std::string &axis_name_prefix)
     : shapes_(shapes), axis_name_prefix_(axis_name_prefix) {
@@ -72,8 +157,8 @@ UTTensorElementHelper::UTTensorElementHelper(const std::vector<int32_t> &shapes,
 }
 
 air::Expr UTTensorElementHelper::Elem(const std::string &name,
-                                       uint32_t dim,
-                                       air::DataType dtype) const {
+                                      uint32_t dim,
+                                      air::DataType dtype) const {
   uint32_t start = shapes_.size() - dim;
   return UTExprBuilder::TensorElement(
       name,
diff --git a/tests/unittest_cpp/src/base/ir_checker.cc b/tests/unittest_cpp/src/base/ir_checker.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c3277022c7ba506bd8e679124dc0ef3c29f2ac09
--- /dev/null
+++ b/tests/unittest_cpp/src/base/ir_checker.cc
@@ -0,0 +1,118 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 "base/ir_checker.h"
+#include <cinttypes>
+#include <string>
+#include "base/dump_helper.h"
+#include "base/expr_builder.h"
+
+namespace akg {
+int64_t UTIRCheckHelper::GetValueFromImm(const air::Expr &expr) {
+  const air::IntImm *imm_int = expr.as<air::IntImm>();
+  if (imm_int != nullptr) {
+    return imm_int->value;
+  }
+  const air::ir::UIntImm *imm_uint = expr.as<air::ir::UIntImm>();
+  if (imm_uint != nullptr) {
+    CHECK(imm_uint->value < INT64_MAX);
+    return static_cast<int64_t>(imm_uint->value);
+  }
+  return 0;
+}
+
+void UTProvideChecker::Visit_(const air::ir::For *op) {
+  uint64_t count_top = for_count_stack_.back();
+  int64_t min = UTIRCheckHelper::GetValueFromImm(op->min);
+  int64_t extent = UTIRCheckHelper::GetValueFromImm(op->extent);
+  CHECK(extent > min);
+  count_top *= static_cast<uint64_t>(extent);
+  for_count_stack_.push_back(count_top);
+  IRVisitor::Visit_(op);
+  for_count_stack_.pop_back();
+}
+
+bool UTProvideChecker::CompareDump(
+    const std::string &dump,
+    const std::string &target) {
+  if (dump.compare(target) == 0) {
+    return true;
+  }
+  if (ignore_args_) {
+    size_t npos = dump.find("(");
+    return dump.substr(0, npos).compare(target) == 0;
+  }
+  return false;
+}
+
+std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> UTProvideCheckerForAssign::Find(
+    const air::NodeRef &node,
+    const std::string &dump_rhs) {
+  dump_rhs_ = dump_rhs;
+  infos_lhs_.clear();
+  for_count_stack_.clear();
+  for_count_stack_.push_back(1);
+  Visit(node);
+  return infos_lhs_;
+}
+
+void UTProvideCheckerForAssign::Visit_(const air::ir::Provide *op) {
+  std::string dump_expr = UTDumpHelper::Dump(op->value);
+  if (CompareDump(dump_expr, dump_rhs_)) {
+    air::Expr expr_call = UTExprBuilder::CreateCall(op->func, op->args);
+    infos_lhs_.push_back(std::make_tuple(UTDumpHelper::Dump(expr_call), op, for_count_stack_.back()));
+  }
+}
+
+std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> UTProvideCheckerForBinary::Find(
+    const air::NodeRef &node,
+    UTProvideCheckerForBinary::BinaryOpType op_type,
+    const std::string &dump_rhs1,
+    const std::string &dump_rhs2) {
+  op_type_ = op_type;
+  dump_rhs1_ = dump_rhs1;
+  dump_rhs2_ = dump_rhs2;
+  infos_lhs_.clear();
+  for_count_stack_.clear();
+  for_count_stack_.push_back(1);
+  if (dump_rhs1_.empty() && dump_rhs2_.empty()) {
+    return infos_lhs_;
+  }
+  Visit(node);
+  return infos_lhs_;
+}
+
+void UTProvideCheckerForBinary::Visit_(const air::ir::Provide *op) {
+  switch (op_type_) {
+    case BinaryOpType::kAdd:
+      CheckBinary<air::ir::Add>(op);
+      break;
+    case BinaryOpType::kSub:
+      CheckBinary<air::ir::Sub>(op);
+      break;
+    case BinaryOpType::kMul:
+      CheckBinary<air::ir::Mul>(op);
+      break;
+    case BinaryOpType::kDiv:
+      CheckBinary<air::ir::Div>(op);
+      break;
+    case BinaryOpType::kMod:
+      CheckBinary<air::ir::Mod>(op);
+      break;
+    default:
+      break;
+  }
+}
+}  // namespace akg
diff --git a/tests/unittest_cpp/src/base/stmt_builder.cc b/tests/unittest_cpp/src/base/stmt_builder.cc
new file mode 100644
index 0000000000000000000000000000000000000000..72b6dd184383f2ffbe887571ef995d0b6c845cbc
--- /dev/null
+++ b/tests/unittest_cpp/src/base/stmt_builder.cc
@@ -0,0 +1,57 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 "base/stmt_builder.h"
+
+namespace akg {
+air::Stmt UTStmtBuilder::CreateFor(
+    const std::string &loop_var_name,
+    int32_t min,
+    int32_t extent,
+    air::Stmt body) {
+  return air::ir::For::make(
+      UTExprBuilder::CreateVar(loop_var_name),
+      UTExprBuilder::IntImm(min),
+      UTExprBuilder::IntImm(extent),
+      air::ir::ForType::Serial,
+      air::ir::DeviceAPI::None,
+      body);
+}
+air::Stmt UTStmtBuilder::CreateRealizeByPlaceholderOp(
+    const air::Operation &op,
+    air::Stmt body) {
+  const air::PlaceholderOpNode *node = op.as<const air::PlaceholderOpNode>();
+  CHECK(node);
+  return air::ir::Realize::make(
+      op,
+      0,
+      node->dtype,
+      UTExprBuilder::CreateRegion(node->shape),
+      UTExprBuilder::BoolImm(true),
+      body);
+}
+
+air::Stmt UTStmtBuilder::CreateProvideAssign(
+    air::ir::FunctionRef func_dst,
+    const std::vector<std::string> &vars,
+    air::Expr src,
+    int value_index) {
+  return air::ir::Provide::make(
+      func_dst,
+      value_index,
+      src,
+      UTExprBuilder::CreateVars(vars));
+}
+}  // namespace akg
diff --git a/tests/unittest_cpp/src/base_test/expr_builder_test.cc b/tests/unittest_cpp/src/base_test/expr_builder_test.cc
index 0ba6b98373e7b78f4f246a3a33932e4c4dc5c5e9..f2635e20f9ef041188bceb79df7fa01eb953a245 100644
--- a/tests/unittest_cpp/src/base_test/expr_builder_test.cc
+++ b/tests/unittest_cpp/src/base_test/expr_builder_test.cc
@@ -18,6 +18,39 @@
 #include "base/expr_builder.h"
 
 namespace akg {
+TEST(UTExprBuilder, IntImm) {
+  air::Expr int1 = UTExprBuilder::IntImm(1024);
+  std::string dump_int1 = UTDumpHelper::Dump(int1);
+  EXPECT_EQ(dump_int1, "1024");
+  air::Expr int2 = UTExprBuilder::IntImm(1024, air::Int(64));
+  std::string dump_int2 = UTDumpHelper::Dump(int2);
+  EXPECT_EQ(dump_int2, "(int64)1024");
+  air::Expr int3 = UTExprBuilder::IntImm(1024, air::Int(16));
+  std::string dump_int3 = UTDumpHelper::Dump(int3);
+  EXPECT_EQ(dump_int3, "(int16)1024");
+}
+
+TEST(UTExprBuilder, UIntImm) {
+  air::Expr uint1 = UTExprBuilder::UIntImm(1024);
+  std::string dump_uint1 = UTDumpHelper::Dump(uint1);
+  EXPECT_EQ(dump_uint1, "(uint32)1024");
+  air::Expr uint2 = UTExprBuilder::UIntImm(1024, air::UInt(64));
+  std::string dump_uint2 = UTDumpHelper::Dump(uint2);
+  EXPECT_EQ(dump_uint2, "(uint64)1024");
+  air::Expr uint3 = UTExprBuilder::UIntImm(1024, air::UInt(16));
+  std::string dump_uint3 = UTDumpHelper::Dump(uint3);
+  EXPECT_EQ(dump_uint3, "(uint16)1024");
+}
+
+TEST(UTExprBuilder, Bool) {
+  air::Expr bool_true = UTExprBuilder::BoolImm(true);
+  std::string dump_bool_true = UTDumpHelper::Dump(bool_true);
+  EXPECT_EQ(dump_bool_true, "(bool)1");
+  air::Expr bool_false = UTExprBuilder::BoolImm(false);
+  std::string dump_bool_false = UTDumpHelper::Dump(bool_false);
+  EXPECT_EQ(dump_bool_false, "(bool)0");
+}
+
 TEST(UTExprBuilder, CreateShape) {
   air::Array<air::Expr> shape1 = UTExprBuilder::CreateShape({1024});
   std::string dump_shape1 = UTDumpHelper::Dump(shape1);
@@ -44,6 +77,12 @@ TEST(UTExprBuilder, CreateVars) {
   EXPECT_EQ(dump_vars, "[ax0, ax1, ax2]");
 }
 
+TEST(UTExprBuilder, CreateRange) {
+  air::Range range = UTExprBuilder::CreateRange(0, 1024);
+  std::string dump_range = UTDumpHelper::Dump(range);
+  EXPECT_EQ(dump_range, "range(min=0, ext=1024)");
+}
+
 TEST(UTExprBuilder, PlaceholderOpNode) {
   air::Operation node = UTExprBuilder::PlaceholderOpNode("input", {16, 32, 1024}, air::Float(16));
   std::string dump_node = UTDumpHelper::Dump(node);
@@ -56,6 +95,13 @@ TEST(UTExprBuilder, TensorElement) {
   EXPECT_EQ(dump_elem, "input(ax0, ax1, ax2)");
 }
 
+TEST(UTExprBuilder, ElememtOfPlaceholderOp) {
+  air::Operation op = UTExprBuilder::PlaceholderOpNode("input", {16, 32, 1024}, air::Float(16));
+  air::Expr elem = UTExprBuilder::ElementOfPlaceholderOp(op, {"ax0", "ax1", "ax2"});
+  std::string dump_elem = UTDumpHelper::Dump(elem);
+  EXPECT_EQ(dump_elem, "input(ax0, ax1, ax2)");
+}
+
 TEST(UTTensorElementHelper, TensorElement) {
   UTTensorElementHelper helper({16, 32, 1024});
   std::string dump_elem1 = UTDumpHelper::Dump(helper.Elem("a", 3));
diff --git a/tests/unittest_cpp/src/base_test/ir_checker_test.cc b/tests/unittest_cpp/src/base_test/ir_checker_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..321d71924d0aab6dc04625c3b3fd425a025cf7a8
--- /dev/null
+++ b/tests/unittest_cpp/src/base_test/ir_checker_test.cc
@@ -0,0 +1,105 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 <gtest/gtest.h>
+#include <string>
+#include "base/ir_checker.h"
+#include "base/expr_builder.h"
+#include "base/stmt_builder.h"
+
+namespace akg {
+TEST(UTProvideChecker, CompareDump) {
+  EXPECT_EQ(UTProvideChecker().CompareDump("a(i, j)", "a"), false);
+  EXPECT_EQ(UTProvideChecker().CompareDump("a(i, j)", "a(i, j)"), true);
+  EXPECT_EQ(UTProvideChecker(true).CompareDump("a(i, j)", "a"), true);
+  EXPECT_EQ(UTProvideChecker(true).CompareDump("a(i, j)", "a(i, j)"), true);
+}
+
+class UTProvideCheckerTest : public testing::Test {
+ public:
+  UTProvideCheckerTest()
+      : a_(UTExprBuilder::PlaceholderOpNode("a", {1024}, air::Float(16))),
+        b_(UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16))),
+        c_(UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16))) {}
+  ~UTProvideCheckerTest() = default;
+  air::Operation a_;
+  air::Operation b_;
+  air::Operation c_;
+};  // class UTProvideCheckerTest
+
+TEST_F(UTProvideCheckerTest, UTProvideCheckerForAssign) {
+  // b(ax0) = a(ax0)
+  air::Stmt stmt = UTStmtBuilder::CreateProvideAssign(
+      b_, {"ax0"}, UTExprBuilder::ElementOf(a_, {"ax0"}));
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs =
+      UTProvideCheckerForAssign().Find(stmt, "a(ax0)");
+  ASSERT_EQ(infos_lhs.size(), 1);
+  EXPECT_EQ(std::get<0>(infos_lhs[0]), "b(ax0)");
+  EXPECT_EQ(std::get<2>(infos_lhs[0]), 1);
+}
+
+TEST_F(UTProvideCheckerTest, UTProvideCheckerForBinary) {
+  // c(ax0) = (a(ax0) + b(ax0))
+  air::Stmt stmt = UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+      c_, {"ax0"},
+      UTExprBuilder::ElementOf(a_, {"ax0"}),
+      UTExprBuilder::ElementOf(b_, {"ax0"}));
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs =
+      UTProvideCheckerForBinary().Find(stmt, UTProvideCheckerForBinary::BinaryOpType::kAdd, "a(ax0)", "b(ax0)");
+  ASSERT_EQ(infos_lhs.size(), 1);
+  EXPECT_EQ(std::get<0>(infos_lhs[0]), "c(ax0)");
+  EXPECT_EQ(std::get<2>(infos_lhs[0]), 1);
+}
+
+class UTProvideCheckerTest2 : public testing::Test {
+ public:
+  UTProvideCheckerTest2()
+      : a_(UTExprBuilder::PlaceholderOpNode("a", {16, 32, 1024}, air::Float(16))),
+        b_(UTExprBuilder::PlaceholderOpNode("b", {16, 32, 1024}, air::Float(16))),
+        c_(UTExprBuilder::PlaceholderOpNode("c", {16, 32, 1024}, air::Float(16))) {}
+  ~UTProvideCheckerTest2() = default;
+  air::Operation a_;
+  air::Operation b_;
+  air::Operation c_;
+};  // class UTProvideCheckerTest
+
+TEST_F(UTProvideCheckerTest2, UTProvideCheckerForBinary) {
+  air::Stmt stmt = UTStmtBuilder::CreateFor(
+      "i", 0, 16,
+      UTStmtBuilder::CreateFor(
+          "j", 0, 32,
+          UTStmtBuilder::CreateFor(
+              "k", 0, 1024,
+              UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                  c_, {"i", "j", "k"},
+                  UTExprBuilder::ElementOf(a_, {"i", "j", "k"}),
+                  UTExprBuilder::ElementOf(b_, {"i", "j", "k"})))));
+  std::string dump_stmt = UTDumpHelper::Dump(stmt);
+  EXPECT_EQ(dump_stmt,
+      "for (i, 0, 16) {\n"
+      "  for (j, 0, 32) {\n"
+      "    for (k, 0, 1024) {\n"
+      "      c(i, j, k) = (a(i, j, k) + b(i, j, k))\n"
+      "    }\n"
+      "  }\n"
+      "}\n");
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs =
+      UTProvideCheckerForBinary().Find(
+          stmt, UTProvideCheckerForBinary::BinaryOpType::kAdd, "a(i, j, k)", "b(i, j, k)");
+  ASSERT_EQ(infos_lhs.size(), 1);
+  EXPECT_EQ(std::get<0>(infos_lhs[0]), "c(i, j, k)");
+  EXPECT_EQ(std::get<2>(infos_lhs[0]), 1024 * 32 * 16);
+}
+}  // namespace akg
diff --git a/tests/unittest_cpp/src/base_test/stmt_builder_test.cc b/tests/unittest_cpp/src/base_test/stmt_builder_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bc732d8b9b7dffb158482fa2e6b87eb324143aa4
--- /dev/null
+++ b/tests/unittest_cpp/src/base_test/stmt_builder_test.cc
@@ -0,0 +1,81 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 "gtest/gtest.h"
+#include "base/dump_helper.h"
+#include "base/expr_builder.h"
+#include "base/stmt_builder.h"
+
+namespace akg {
+TEST(UTStmtBuilder, CreateProvideAssign) {
+  // b(ax0) = a(ax0)
+  air::Operation a = UTExprBuilder::PlaceholderOpNode("a", {1024}, air::Float(16));
+  air::Operation b = UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16));
+  air::Stmt stmt = UTStmtBuilder::CreateProvideAssign(
+      b, {"ax0"}, UTExprBuilder::ElementOf(a, {"ax0"}));
+  std::string dump_stmt = UTDumpHelper::Dump(stmt);
+  EXPECT_EQ(dump_stmt, "b(ax0) = a(ax0)\n");
+}
+
+TEST(UTStmtBuilder, CreateProvideBinary) {
+  // c(ax0) = a(ax0) + b(ax0)
+  air::Operation a = UTExprBuilder::PlaceholderOpNode("a", {1024}, air::Float(16));
+  air::Operation b = UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16));
+  air::Operation c = UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16));
+  air::Stmt stmt = UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+      c, {"ax0"}, UTExprBuilder::ElementOf(a, {"ax0"}), UTExprBuilder::ElementOf(b, {"ax0"}));
+  std::string dump_stmt = UTDumpHelper::Dump(stmt);
+  EXPECT_EQ(dump_stmt, "c(ax0) = (a(ax0) + b(ax0))\n");
+}
+
+TEST(UTStmtBuilder, CreateFor) {
+  /*
+   * for (i, 0, 1024) {
+   *   c(i) = (a(i) + b(i))
+   * }
+   */
+  air::Operation a = UTExprBuilder::PlaceholderOpNode("a", {1024}, air::Float(16));
+  air::Operation b = UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16));
+  air::Operation c = UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16));
+  air::Stmt stmt_for = UTStmtBuilder::CreateFor(
+      "i", 0, 1024,
+      UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+          c, {"i"}, UTExprBuilder::ElementOf(a, {"i"}), UTExprBuilder::ElementOf(b, {"i"})));
+  std::string dump_stmt_for = UTDumpHelper::Dump(stmt_for);
+  EXPECT_EQ(dump_stmt_for,
+      "for (i, 0, 1024) {\n"
+      "  c(i) = (a(i) + b(i))\n"
+      "}\n");
+}
+
+TEST(UTStmtBuilder, CreateRealizeByPlaceholderOp) {
+  air::Operation a = UTExprBuilder::PlaceholderOpNode("a", {1024}, air::Float(16));
+  air::Operation b = UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16));
+  air::Operation c = UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16));
+  air::Stmt stmt_realize = UTStmtBuilder::CreateRealizeByPlaceholderOp(
+      c,
+      UTStmtBuilder::CreateFor(
+          "i", 0, 1024,
+          UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+              c, {"i"}, UTExprBuilder::ElementOf(a, {"i"}), UTExprBuilder::ElementOf(b, {"i"}))));
+  std::string dump_stmt_realize = UTDumpHelper::Dump(stmt_realize);
+  EXPECT_EQ(dump_stmt_realize,
+      "realize c<float16>([0, 1024]) {\n"
+      "  for (i, 0, 1024) {\n"
+      "    c(i) = (a(i) + b(i))\n"
+      "  }\n"
+      "}\n");
+}
+}  // namespace akg
diff --git a/tests/unittest_cpp/src/pass_test/auto_poly_test.cc b/tests/unittest_cpp/src/pass_test/auto_poly_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5ea1012371cb10c4af77d02073465b3080644c49
--- /dev/null
+++ b/tests/unittest_cpp/src/pass_test/auto_poly_test.cc
@@ -0,0 +1,309 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 <gtest/gtest.h>
+#include <tvm/ir.h>
+#include "base/dump_helper.h"
+#include "base/expr_builder.h"
+#include "base/ir_checker.h"
+#include "base/stmt_builder.h"
+#include "pass_test_base/auto_poly_test_base.h"
+#define private public
+#define protected public
+#include "ir_pass.h"
+#undef protected
+#undef private
+#include "codegen/util.h"
+#include "contrib/cce_parm/cceconf.h"
+
+namespace akg {
+/* AutoPolyTest1: test for to_three_address
+ * Input pattern:
+ * for (i0, 0, 32) {
+ *   for (i1, 0, 1024) {
+ *     out_0(i1) = b(i1) + c(i1)
+ *     out(i0, i1) = out_0(i1) + a(i0, i1)
+ *   }
+ * }
+ *
+ * Expect output:
+ * for (cc1, 0, 2) {
+ *   for (cc2, 0, 16) {
+ *     for (cc3, 0, 1024) {
+ *       out_0_local_UB(cc2) = (b_local_UB(cc2) + c_local_UB(cc2))
+ *       out_local_UB(cc3, cc2) = (out_0_local_UB(cc2) + a_local_UB(cc3, cc2))
+ *     }
+ *   }
+ * }
+ *
+ * IR Check:
+ *   count for (b_local_UB + c_local_UB): 32 * 1024
+ */
+class AutoPolyTest1 : public AutoPolyTestBase {
+ public:
+  AutoPolyTest1() {
+    Construct();
+  }
+  ~AutoPolyTest1() = default;
+  void Construct() {
+    a_ = UTExprBuilder::PlaceholderOpNode("a", {32, 1024}, air::Float(16));
+    b_ = UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16));
+    c_ = UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16));
+    out_ = UTExprBuilder::PlaceholderOpNode("out", {32, 1024}, air::Float(16));
+    out_0_ = UTExprBuilder::PlaceholderOpNode("out_0", {1024}, air::Float(16));
+    stmt_ = air::ir::AttrStmt::make(
+        out_0_, "realize_scope", air::ir::StringImm::make(""),
+        UTStmtBuilder::CreateRealizeByPlaceholderOp(
+            out_0_,
+            air::ir::AttrStmt::make(
+                out_, "realize_scope", air::ir::StringImm::make(""),
+                UTStmtBuilder::CreateRealizeByPlaceholderOp(
+                    out_,
+                    air::ir::ProducerConsumer::make(out_, true,
+                        UTStmtBuilder::CreateFor(
+                            "i0", 0, 32,
+                            UTStmtBuilder::CreateFor(
+                                "i1", 0, 1024,
+                                air::ir::Block::make(
+                                    UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                                        out_0_, {"i1"},
+                                        UTExprBuilder::ElementOf(b_, {"i1"}),
+                                        UTExprBuilder::ElementOf(c_, {"i1"})),
+                                    UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                                        out_, {"i0", "i1"},
+                                        UTExprBuilder::ElementOf(out_0_, {"i1"}),
+                                        UTExprBuilder::ElementOf(a_, {"i0", "i1"}))))))))));
+    t_a_ = UTExprBuilder::CreateTensorByPlaceholder(a_);
+    t_b_ = UTExprBuilder::CreateTensorByPlaceholder(b_);
+    t_c_ = UTExprBuilder::CreateTensorByPlaceholder(c_);
+    t_out_ = UTExprBuilder::CreateTensorByPlaceholder(out_);
+    RegisterTensor(t_a_);
+    RegisterTensor(t_b_);
+    RegisterTensor(t_c_);
+    RegisterTensor(t_out_);
+  }
+
+  air::Operation a_;
+  air::Operation b_;
+  air::Operation c_;
+  air::Tensor t_a_;
+  air::Tensor t_b_;
+  air::Tensor t_c_;
+  air::Operation out_;
+  air::Tensor t_out_;
+  air::Operation out_0_;
+  air::Stmt stmt_;
+};  // class AutoPolyTest1
+
+TEST_F(AutoPolyTest1, RunPass) {
+  SetRunMode("cloud");
+  air::Array<air::NodeRef> stmts_out = ir::AutoPoly(stmt_, binds_, global_attrs_, false, false);
+  ASSERT_EQ(stmts_out.size(), 2);
+  air::NodeRef stmt = stmts_out[0];
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs =
+      UTProvideCheckerForBinary(true).Find(
+          stmt, UTProvideCheckerForBinary::BinaryOpType::kAdd, "b_local_UB", "c_local_UB");
+  ASSERT_EQ(infos_lhs.size(), 1);
+  EXPECT_EQ(std::get<2>(infos_lhs[0]), 2 * 16 * 1024);
+}
+
+/* AutoPolyTest2: test for to_three_address
+ * Input pattern:
+ * for (i1, 0, 32) {
+ *   out_0(i1) = b(i1) + c(i1)
+ *   for (i0, 0, 1024) {
+ *     out(i0, i1) = out_0(i1) + a(i0, i1)
+ *   }
+ * }
+ *
+ * Expect output:
+ * for (cc1, 0, 2) {
+ *   for (cc2, 0, 1024) {
+ *     out_0_local_UB(cc2) = (b_local_UB(cc2) + c_local_UB(cc2))
+ *   }
+ *   for (cc2, 0, 1024) {
+ *     for (cc3, 0, 16) {
+ *       out_local_UB(cc3, cc2) = (out_0_local_UB(cc2) + a_local_UB(cc3, cc2))
+ *     }
+ *   }
+ * }
+ *
+ * IR Check:
+ *   count for (b_local_UB + c_local_UB): 2 * 1024
+ */
+class AutoPolyTest2 : public AutoPolyTestBase {
+ public:
+  AutoPolyTest2() {
+    Construct();
+  }
+  ~AutoPolyTest2() = default;
+  void Construct() {
+    a_ = UTExprBuilder::PlaceholderOpNode("a", {32, 1024}, air::Float(16));
+    b_ = UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16));
+    c_ = UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16));
+    out_ = UTExprBuilder::PlaceholderOpNode("out", {32, 1024}, air::Float(16));
+    out_0_ = UTExprBuilder::PlaceholderOpNode("out_0", {1024}, air::Float(16));
+    stmt_ = air::ir::AttrStmt::make(
+        out_0_, "realize_scope", air::ir::StringImm::make(""),
+        UTStmtBuilder::CreateRealizeByPlaceholderOp(
+            out_0_,
+            air::ir::AttrStmt::make(
+                out_, "realize_scope", air::ir::StringImm::make(""),
+                UTStmtBuilder::CreateRealizeByPlaceholderOp(
+                    out_,
+                    air::ir::ProducerConsumer::make(out_, true,
+                        UTStmtBuilder::CreateFor(
+                            "i1", 0, 1024,
+                            air::ir::Block::make(
+                                UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                                    out_0_, {"i1"},
+                                    UTExprBuilder::ElementOf(b_, {"i1"}),
+                                    UTExprBuilder::ElementOf(c_, {"i1"})),
+                                UTStmtBuilder::CreateFor(
+                                    "i0", 0, 32,
+                                    UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                                        out_, {"i0", "i1"},
+                                        UTExprBuilder::ElementOf(out_0_, {"i1"}),
+                                        UTExprBuilder::ElementOf(a_, {"i0", "i1"}))))))))));
+    t_a_ = UTExprBuilder::CreateTensorByPlaceholder(a_);
+    t_b_ = UTExprBuilder::CreateTensorByPlaceholder(b_);
+    t_c_ = UTExprBuilder::CreateTensorByPlaceholder(c_);
+    t_out_ = UTExprBuilder::CreateTensorByPlaceholder(out_);
+    RegisterTensor(t_a_);
+    RegisterTensor(t_b_);
+    RegisterTensor(t_c_);
+    RegisterTensor(t_out_);
+  }
+
+  air::Operation a_;
+  air::Operation b_;
+  air::Operation c_;
+  air::Tensor t_a_;
+  air::Tensor t_b_;
+  air::Tensor t_c_;
+  air::Operation out_;
+  air::Tensor t_out_;
+  air::Operation out_0_;
+  air::Stmt stmt_;
+};  // class AutoPolyTest2
+
+TEST_F(AutoPolyTest2, RunPass) {
+  SetRunMode("cloud");
+  air::Array<air::NodeRef> stmts_out = ir::AutoPoly(stmt_, binds_, global_attrs_, false, false);
+  ASSERT_EQ(stmts_out.size(), 2);
+  air::NodeRef stmt = stmts_out[0];
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs =
+      UTProvideCheckerForBinary(true).Find(
+          stmt, UTProvideCheckerForBinary::BinaryOpType::kAdd, "b_local_UB", "c_local_UB");
+  ASSERT_EQ(infos_lhs.size(), 1);
+  EXPECT_EQ(std::get<2>(infos_lhs[0]), 2 * 1024);
+}
+
+/* AutoPolyTest3: test for to_three_address
+ * Input pattern:
+ * for (i0, 0, 1024) {
+ *   out_0(i0) = b(i0) + c(i0)
+ * }
+ * for (i1, 0, 32) {
+ *   for (i0, 0, 1024) {
+ *     out(i0, i1) = out_0(i1) + a(i0, i1)
+ *   }
+ * }
+ *
+ * Expect output:
+ * for (cc1, 0, 2) {
+ *   for (cc2, 0, 1024) {
+ *     out_0_local_UB(cc2) = (b_local_UB(cc2) + c_local_UB(cc2))
+ *   }
+ *   for (cc2, 0, 1024) {
+ *     for (cc3, 0, 16) {
+ *       out_local_UB(cc3, cc2) = (out_0_local_UB(cc2) + a_local_UB(cc3, cc2))
+ *     }
+ *   }
+ * }
+ *
+ * IR Check:
+ *   count for (b_local_UB + c_local_UB): 2 * 1024
+ */
+class AutoPolyTest3 : public AutoPolyTestBase {
+ public:
+  AutoPolyTest3() {
+    Construct();
+  }
+  ~AutoPolyTest3() = default;
+  void Construct() {
+    a_ = UTExprBuilder::PlaceholderOpNode("a", {32, 1024}, air::Float(16));
+    b_ = UTExprBuilder::PlaceholderOpNode("b", {1024}, air::Float(16));
+    c_ = UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16));
+    out_ = UTExprBuilder::PlaceholderOpNode("out", {32, 1024}, air::Float(16));
+    out_0_ = UTExprBuilder::PlaceholderOpNode("out_0", {1024}, air::Float(16));
+    stmt_ = air::ir::AttrStmt::make(
+        out_0_, "realize_scope", air::ir::StringImm::make(""),
+        UTStmtBuilder::CreateRealizeByPlaceholderOp(
+            out_0_,
+            air::ir::AttrStmt::make(
+                out_, "realize_scope", air::ir::StringImm::make(""),
+                UTStmtBuilder::CreateRealizeByPlaceholderOp(
+                    out_,
+                    air::ir::ProducerConsumer::make(out_, true,
+                        air::ir::Block::make(
+                            UTStmtBuilder::CreateFor(
+                                "i0", 0, 1024,
+                                UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                                    out_0_, {"i0"},
+                                    UTExprBuilder::ElementOf(b_, {"i0"}),
+                                    UTExprBuilder::ElementOf(c_, {"i0"}))),
+                            UTStmtBuilder::CreateFor(
+                                "i0", 0, 32,
+                                UTStmtBuilder::CreateFor(
+                                    "i1", 0, 1024,
+                                    UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                                        out_, {"i0", "i1"},
+                                        UTExprBuilder::ElementOf(out_0_, {"i1"}),
+                                        UTExprBuilder::ElementOf(a_, {"i0", "i1"}))))))))));
+    t_a_ = UTExprBuilder::CreateTensorByPlaceholder(a_);
+    t_b_ = UTExprBuilder::CreateTensorByPlaceholder(b_);
+    t_c_ = UTExprBuilder::CreateTensorByPlaceholder(c_);
+    t_out_ = UTExprBuilder::CreateTensorByPlaceholder(out_);
+    RegisterTensor(t_a_);
+    RegisterTensor(t_b_);
+    RegisterTensor(t_c_);
+    RegisterTensor(t_out_);
+  }
+
+  air::Operation a_;
+  air::Operation b_;
+  air::Operation c_;
+  air::Tensor t_a_;
+  air::Tensor t_b_;
+  air::Tensor t_c_;
+  air::Operation out_;
+  air::Tensor t_out_;
+  air::Operation out_0_;
+  air::Stmt stmt_;
+};  // class AutoPolyTest3
+
+TEST_F(AutoPolyTest3, RunPass) {
+  SetRunMode("cloud");
+  air::Array<air::NodeRef> stmts_out = ir::AutoPoly(stmt_, binds_, global_attrs_, false, false);
+  ASSERT_EQ(stmts_out.size(), 2);
+  air::NodeRef stmt = stmts_out[0];
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs =
+      UTProvideCheckerForBinary(true).Find(
+          stmt, UTProvideCheckerForBinary::BinaryOpType::kAdd, "b_local_UB", "c_local_UB");
+  ASSERT_EQ(infos_lhs.size(), 1);
+  EXPECT_EQ(std::get<2>(infos_lhs[0]), 2 * 1024);
+}
+}  // namespace akg
diff --git a/tests/unittest_cpp/src/pass_test/to_three_address_test.cc b/tests/unittest_cpp/src/pass_test/to_three_address_test.cc
index d84e102557406031f2ea28459d87fc3dc7b5081e..ee10181cf0597fdf7ba1103403d0c458ce732c01 100644
--- a/tests/unittest_cpp/src/pass_test/to_three_address_test.cc
+++ b/tests/unittest_cpp/src/pass_test/to_three_address_test.cc
@@ -15,8 +15,10 @@
  */
 #include <gtest/gtest.h>
 #include <tvm/ir.h>
-#include "base/expr_builder.h"
 #include "base/dump_helper.h"
+#include "base/expr_builder.h"
+#include "base/ir_checker.h"
+#include "base/stmt_builder.h"
 #define private public
 #define protected public
 #include "pass/to_three_address.cc"
@@ -71,4 +73,74 @@ TEST_F(ThreeAddressExprMutatorTest, MutateBinaryOp_Add) {
   Expr expr_m = mutator_.Mutate(expr);
   EXPECT_NE(mutator_.imm_ops.size(), 0);
 }
+
+class PassTestToThreeAddress1 : public ::testing::Test {
+  public:
+  PassTestToThreeAddress1() {
+    Construct();
+  }
+  ~PassTestToThreeAddress1() = default;
+  void Construct() {
+    a_ = UTExprBuilder::PlaceholderOpNode("a", {1024}, air::Float(16));
+    b_ = UTExprBuilder::PlaceholderOpNode("b", {32, 1024}, air::Float(16));
+    c_ = UTExprBuilder::PlaceholderOpNode("c", {1024}, air::Float(16));
+    out_ = UTExprBuilder::PlaceholderOpNode("out", {32, 1024}, air::Float(16));
+    stmt = air::ir::AttrStmt::make(
+        out_, "", UTExprBuilder::IntImm(1),
+        UTStmtBuilder::CreateRealizeByPlaceholderOp(
+        out_,
+        air::ir::ProducerConsumer::make(out_, true,
+            UTStmtBuilder::CreateFor(
+                "i", 0, 32,
+                UTStmtBuilder::CreateFor(
+                   "j", 0, 1024,
+                    UTStmtBuilder::CreateProvideBinary<air::ir::Add>(
+                        out_, {"i", "j"},
+                        air::ir::Add::make(
+                            UTExprBuilder::ElementOf(a_, {"j"}),
+                            UTExprBuilder::ElementOf(b_, {"i", "j"})),
+                        UTExprBuilder::ElementOf(c_, {"j"})))))));
+  }
+
+  air::Operation a_;
+  air::Operation b_;
+  air::Operation c_;
+  air::Operation out_;
+  air::Stmt stmt;
+};  // class PassTestToThreeAddress1
+
+TEST_F(PassTestToThreeAddress1, CaseCheck) {
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> infos_lhs =
+      UTProvideCheckerForAssign().Find(stmt, "((a(j) + b(i, j)) + c(j))");
+  ASSERT_EQ(infos_lhs.size(), 1);
+  EXPECT_EQ(std::get<0>(infos_lhs[0]), "out(i, j)");
+  EXPECT_EQ(std::get<2>(infos_lhs[0]), 32 * 1024);
+}
+
+TEST_F(PassTestToThreeAddress1, TestPass) {
+  Stmt stmt_out = ir::ToThreeAddress(stmt, false, 0, true);
+  /* current implementation
+   *   out_2(i, j) = b(i, j)
+   *   out_3(i, j) = (a(j) + out_2(i, j))
+   *   out(i, j) = (out_3(i, j) + c(j))
+   */
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> info1 =
+      UTProvideCheckerForAssign().Find(stmt_out, "b(i, j)");
+  ASSERT_EQ(info1.size(), 1);
+  std::string dump_b_target = std::get<0>(info1[0]);
+
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> info2 =
+      UTProvideCheckerForBinary().Find(
+          stmt_out, UTProvideCheckerForBinary::BinaryOpType::kAdd, "a(j)", dump_b_target);
+  ASSERT_EQ(info2.size(), 1);
+  std::string dump_sum1_target = std::get<0>(info2[0]);
+  EXPECT_EQ(std::get<2>(info2[0]), 32 * 1024);
+
+  std::vector<std::tuple<std::string, const air::ir::Provide*, uint64_t>> info3 =
+      UTProvideCheckerForBinary().Find(
+          stmt_out, UTProvideCheckerForBinary::BinaryOpType::kAdd, dump_sum1_target, "c(j)");
+  ASSERT_EQ(info3.size(), 1);
+  EXPECT_EQ(std::get<0>(info3[0]), "out(i, j)");
+  EXPECT_EQ(std::get<2>(info3[0]), 32 * 1024);
+}
 }  // namespace akg
diff --git a/tests/unittest_cpp/src/pass_test_base/auto_poly_test_base.cc b/tests/unittest_cpp/src/pass_test_base/auto_poly_test_base.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f0696fd3c6a4a72137ec75a29ad5677acb4ce596
--- /dev/null
+++ b/tests/unittest_cpp/src/pass_test_base/auto_poly_test_base.cc
@@ -0,0 +1,53 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * 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 "pass_test_base/auto_poly_test_base.h"
+
+namespace akg {
+std::map<std::string, std::string> AutoPolyTestBase::map_mode_ =
+    AutoPolyTestBase::InitMapMode();
+
+std::map<std::string, std::string> AutoPolyTestBase::InitMapMode() {
+  std::map<std::string, std::string> res;
+  res["cloud"] = "1.6";
+  res["mini"] = "1.1";
+  res["phoenix"] = "3.5";
+  res["orlando"] = "3.3";
+  return res;
+}
+
+void AutoPolyTestBase::SetRunMode(const std::string &mode) {
+  auto it = map_mode_.find(mode);
+  CHECK(it != map_mode_.end());
+  cceconf::CceConf::getInstance()->setSection(it->second);
+}
+
+void AutoPolyTestBase::RegisterTensor(const air::Tensor &tensor) {
+  const TensorNode *tensor_node = tensor.as<TensorNode>();
+  std::string name = tensor_node->op->name;
+  air::Buffer buf = air::BufferNode::make(
+      air::Variable::make(Handle(), name),
+      tensor_node->dtype,
+      tensor_node->shape,
+      Array<Expr>(),
+      Expr(),
+      name,
+      "",
+      -1,
+      0,
+      air::BufferType::kDefault);
+  binds_.Set(GetRef<Tensor>(tensor_node), buf);
+}
+}  // namespace akg