Revert of Extend HasProperty stub with dictionary-mode and double-elements objects support.

test/cctest/test-code-stub-assembler.cc

Index: test/cctest/test-code-stub-assembler.cc
diff --git a/test/cctest/test-code-stub-assembler.cc b/test/cctest/test-code-stub-assembler.cc
deleted file mode 100644
index aa1c7ce25234ca9ef28d1e4c5fe0320994be0f0e..0000000000000000000000000000000000000000
--- a/test/cctest/test-code-stub-assembler.cc
+++ /dev/null
@@ -1,1059 +0,0 @@
-// Copyright 2015 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "src/base/utils/random-number-generator.h"
-#include "src/interface-descriptors.h"
-#include "src/isolate.h"
-#include "test/cctest/compiler/function-tester.h"
-
-namespace v8 {
-namespace internal {
-
-using compiler::FunctionTester;
-using compiler::Node;
-
-class CodeStubAssemblerTester : public CodeStubAssembler {
- public:
-  // Test generating code for a stub.
-  CodeStubAssemblerTester(Isolate* isolate,
-                          const CallInterfaceDescriptor& descriptor)
-      : CodeStubAssembler(isolate, isolate->runtime_zone(), descriptor,
-                          Code::ComputeFlags(Code::STUB), "test"),
-        zone_scope_(isolate->runtime_zone()),
-        scope_(isolate) {}
-
-  // Test generating code for a JS function (e.g. builtins).
-  CodeStubAssemblerTester(Isolate* isolate, int parameter_count)
-      : CodeStubAssembler(isolate, isolate->runtime_zone(), parameter_count,
-                          Code::ComputeFlags(Code::FUNCTION), "test"),
-        zone_scope_(isolate->runtime_zone()),
-        scope_(isolate) {}
-
- private:
-  ZoneScope zone_scope_;
-  HandleScope scope_;
-  LocalContext context_;
-};
-
-TEST(SimpleSmiReturn) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  m.Return(m.SmiTag(m.Int32Constant(37)));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(37, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(SimpleIntPtrReturn) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  int test;
-  m.Return(m.IntPtrConstant(reinterpret_cast<intptr_t>(&test)));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(reinterpret_cast<intptr_t>(&test),
-           reinterpret_cast<intptr_t>(*result.ToHandleChecked()));
-}
-
-TEST(SimpleDoubleReturn) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  m.Return(m.NumberConstant(0.5));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(0.5, Handle<HeapNumber>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(SimpleCallRuntime1Arg) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
-  Node* b = m.SmiTag(m.Int32Constant(0));
-  m.Return(m.CallRuntime(Runtime::kNumberToSmi, context, b));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(0, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(SimpleTailCallRuntime1Arg) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
-  Node* b = m.SmiTag(m.Int32Constant(0));
-  m.TailCallRuntime(Runtime::kNumberToSmi, context, b);
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(0, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(SimpleCallRuntime2Arg) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
-  Node* a = m.SmiTag(m.Int32Constant(2));
-  Node* b = m.SmiTag(m.Int32Constant(4));
-  m.Return(m.CallRuntime(Runtime::kMathPow, context, a, b));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(16, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(SimpleTailCallRuntime2Arg) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
-  Node* a = m.SmiTag(m.Int32Constant(2));
-  Node* b = m.SmiTag(m.Int32Constant(4));
-  m.TailCallRuntime(Runtime::kMathPow, context, a, b);
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(16, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(VariableMerge1) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  CodeStubAssembler::Variable var1(&m, MachineRepresentation::kTagged);
-  CodeStubAssembler::Label l1(&m), l2(&m), merge(&m);
-  Node* temp = m.Int32Constant(0);
-  var1.Bind(temp);
-  m.Branch(m.Int32Constant(1), &l1, &l2);
-  m.Bind(&l1);
-  CHECK_EQ(var1.value(), temp);
-  m.Goto(&merge);
-  m.Bind(&l2);
-  CHECK_EQ(var1.value(), temp);
-  m.Goto(&merge);
-  m.Bind(&merge);
-  CHECK_EQ(var1.value(), temp);
-}
-
-TEST(VariableMerge2) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  CodeStubAssembler::Variable var1(&m, MachineRepresentation::kTagged);
-  CodeStubAssembler::Label l1(&m), l2(&m), merge(&m);
-  Node* temp = m.Int32Constant(0);
-  var1.Bind(temp);
-  m.Branch(m.Int32Constant(1), &l1, &l2);
-  m.Bind(&l1);
-  CHECK_EQ(var1.value(), temp);
-  m.Goto(&merge);
-  m.Bind(&l2);
-  Node* temp2 = m.Int32Constant(2);
-  var1.Bind(temp2);
-  CHECK_EQ(var1.value(), temp2);
-  m.Goto(&merge);
-  m.Bind(&merge);
-  CHECK_NE(var1.value(), temp);
-}
-
-TEST(VariableMerge3) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  CodeStubAssembler::Variable var1(&m, MachineRepresentation::kTagged);
-  CodeStubAssembler::Variable var2(&m, MachineRepresentation::kTagged);
-  CodeStubAssembler::Label l1(&m), l2(&m), merge(&m);
-  Node* temp = m.Int32Constant(0);
-  var1.Bind(temp);
-  var2.Bind(temp);
-  m.Branch(m.Int32Constant(1), &l1, &l2);
-  m.Bind(&l1);
-  CHECK_EQ(var1.value(), temp);
-  m.Goto(&merge);
-  m.Bind(&l2);
-  Node* temp2 = m.Int32Constant(2);
-  var1.Bind(temp2);
-  CHECK_EQ(var1.value(), temp2);
-  m.Goto(&merge);
-  m.Bind(&merge);
-  CHECK_NE(var1.value(), temp);
-  CHECK_NE(var1.value(), temp2);
-  CHECK_EQ(var2.value(), temp);
-}
-
-TEST(VariableMergeBindFirst) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  CodeStubAssembler::Variable var1(&m, MachineRepresentation::kTagged);
-  CodeStubAssembler::Label l1(&m), l2(&m), merge(&m, &var1), end(&m);
-  Node* temp = m.Int32Constant(0);
-  var1.Bind(temp);
-  m.Branch(m.Int32Constant(1), &l1, &l2);
-  m.Bind(&l1);
-  CHECK_EQ(var1.value(), temp);
-  m.Goto(&merge);
-  m.Bind(&merge);
-  CHECK(var1.value() != temp);
-  CHECK(var1.value() != nullptr);
-  m.Goto(&end);
-  m.Bind(&l2);
-  Node* temp2 = m.Int32Constant(2);
-  var1.Bind(temp2);
-  CHECK_EQ(var1.value(), temp2);
-  m.Goto(&merge);
-  m.Bind(&end);
-  CHECK(var1.value() != temp);
-  CHECK(var1.value() != nullptr);
-}
-
-TEST(VariableMergeSwitch) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  CodeStubAssembler::Variable var1(&m, MachineRepresentation::kTagged);
-  CodeStubAssembler::Label l1(&m), l2(&m), default_label(&m);
-  CodeStubAssembler::Label* labels[] = {&l1, &l2};
-  int32_t values[] = {1, 2};
-  Node* temp = m.Int32Constant(0);
-  var1.Bind(temp);
-  m.Switch(m.Int32Constant(2), &default_label, values, labels, 2);
-  m.Bind(&l1);
-  DCHECK_EQ(temp, var1.value());
-  m.Return(temp);
-  m.Bind(&l2);
-  DCHECK_EQ(temp, var1.value());
-  m.Return(temp);
-  m.Bind(&default_label);
-  DCHECK_EQ(temp, var1.value());
-  m.Return(temp);
-}
-
-TEST(FixedArrayAccessSmiIndex) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  Handle<FixedArray> array = isolate->factory()->NewFixedArray(5);
-  array->set(4, Smi::FromInt(733));
-  m.Return(m.LoadFixedArrayElement(m.HeapConstant(array),
-                                   m.SmiTag(m.Int32Constant(4)), 0,
-                                   CodeStubAssembler::SMI_PARAMETERS));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(733, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(LoadHeapNumberValue) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  Handle<HeapNumber> number = isolate->factory()->NewHeapNumber(1234);
-  m.Return(m.SmiTag(
-      m.ChangeFloat64ToUint32(m.LoadHeapNumberValue(m.HeapConstant(number)))));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(1234, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(LoadInstanceType) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  Handle<HeapObject> undefined = isolate->factory()->undefined_value();
-  m.Return(m.SmiTag(m.LoadInstanceType(m.HeapConstant(undefined))));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  CHECK_EQ(InstanceType::ODDBALL_TYPE,
-           Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-namespace {
-
-class TestBitField : public BitField<unsigned, 3, 3> {};
-
-}  // namespace
-
-TEST(BitFieldDecode) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  m.Return(m.SmiTag(m.BitFieldDecode<TestBitField>(m.Int32Constant(0x2f))));
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(descriptor, code);
-  MaybeHandle<Object> result = ft.Call();
-  // value  = 00101111
-  // mask   = 00111000
-  // result = 101
-  CHECK_EQ(5, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-namespace {
-
-Handle<JSFunction> CreateFunctionFromCode(int parameter_count_with_receiver,
-                                          Handle<Code> code) {
-  Isolate* isolate = code->GetIsolate();
-  Handle<String> name = isolate->factory()->InternalizeUtf8String("test");
-  Handle<JSFunction> function =
-      isolate->factory()->NewFunctionWithoutPrototype(name, code);
-  function->shared()->set_internal_formal_parameter_count(
-      parameter_count_with_receiver - 1);  // Implicit undefined receiver.
-  return function;
-}
-
-}  // namespace
-
-TEST(JSFunction) {
-  const int kNumParams = 3;  // Receiver, left, right.
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  CodeStubAssemblerTester m(isolate, kNumParams);
-  m.Return(m.SmiTag(m.Int32Add(m.SmiToWord32(m.Parameter(1)),
-                               m.SmiToWord32(m.Parameter(2)))));
-  Handle<Code> code = m.GenerateCode();
-  Handle<JSFunction> function = CreateFunctionFromCode(kNumParams, code);
-  Handle<Object> args[] = {Handle<Smi>(Smi::FromInt(23), isolate),
-                           Handle<Smi>(Smi::FromInt(34), isolate)};
-  MaybeHandle<Object> result =
-      Execution::Call(isolate, function, isolate->factory()->undefined_value(),
-                      arraysize(args), args);
-  CHECK_EQ(57, Handle<Smi>::cast(result.ToHandleChecked())->value());
-}
-
-TEST(SplitEdgeBranchMerge) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  CodeStubAssembler::Label l1(&m), merge(&m);
-  m.Branch(m.Int32Constant(1), &l1, &merge);
-  m.Bind(&l1);
-  m.Goto(&merge);
-  m.Bind(&merge);
-  USE(m.GenerateCode());
-}
-
-TEST(SplitEdgeSwitchMerge) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  CodeStubAssembler::Label l1(&m), l2(&m), l3(&m), default_label(&m);
-  CodeStubAssembler::Label* labels[] = {&l1, &l2};
-  int32_t values[] = {1, 2};
-  m.Branch(m.Int32Constant(1), &l3, &l1);
-  m.Bind(&l3);
-  m.Switch(m.Int32Constant(2), &default_label, values, labels, 2);
-  m.Bind(&l1);
-  m.Goto(&l2);
-  m.Bind(&l2);
-  m.Goto(&default_label);
-  m.Bind(&default_label);
-  USE(m.GenerateCode());
-}
-
-TEST(TestToConstant) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  VoidDescriptor descriptor(isolate);
-  CodeStubAssemblerTester m(isolate, descriptor);
-  int32_t value32;
-  int64_t value64;
-  Node* a = m.Int32Constant(5);
-  CHECK(m.ToInt32Constant(a, value32));
-  CHECK(m.ToInt64Constant(a, value64));
-
-  a = m.Int64Constant(static_cast<int64_t>(1) << 32);
-  CHECK(!m.ToInt32Constant(a, value32));
-  CHECK(m.ToInt64Constant(a, value64));
-
-  a = m.Int64Constant(13);
-  CHECK(m.ToInt32Constant(a, value32));
-  CHECK(m.ToInt64Constant(a, value64));
-
-  a = m.UndefinedConstant();
-  CHECK(!m.ToInt32Constant(a, value32));
-  CHECK(!m.ToInt64Constant(a, value64));
-
-  a = m.UndefinedConstant();
-  CHECK(!m.ToInt32Constant(a, value32));
-  CHECK(!m.ToInt64Constant(a, value64));
-}
-
-TEST(ComputeIntegerHash) {
-  Isolate* isolate(CcTest::InitIsolateOnce());
-  const int param_count = 2;
-  CodeStubAssemblerTester m(isolate, param_count);
-  m.Return(m.SmiFromWord32(m.ComputeIntegerHash(
-      m.SmiToWord32(m.Parameter(0)), m.SmiToWord32(m.Parameter(1)))));
-
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(code, param_count);
-
-  Handle<Smi> hash_seed = isolate->factory()->hash_seed();
-
-  base::RandomNumberGenerator rand_gen(FLAG_random_seed);
-
-  for (int i = 0; i < 1024; i++) {
-    int k = rand_gen.NextInt(Smi::kMaxValue);
-
-    Handle<Smi> key(Smi::FromInt(k), isolate);
-    Handle<Object> result = ft.Call(key, hash_seed).ToHandleChecked();
-
-    uint32_t hash = ComputeIntegerHash(k, hash_seed->value());
-    Smi* expected = Smi::FromInt(hash & Smi::kMaxValue);
-    CHECK_EQ(expected, Smi::cast(*result));
-  }
-}
-
-TEST(TryToName) {
-  typedef CodeStubAssembler::Label Label;
-  typedef CodeStubAssembler::Variable Variable;
-  Isolate* isolate(CcTest::InitIsolateOnce());
-
-  const int param_count = 3;
-  CodeStubAssemblerTester m(isolate, param_count);
-
-  enum Result { kKeyIsIndex, kKeyIsUnique, kBailout };
-  {
-    Node* key = m.Parameter(0);
-    Node* expected_result = m.Parameter(1);
-    Node* expected_arg = m.Parameter(2);
-
-    Label passed(&m), failed(&m);
-    Label if_keyisindex(&m), if_keyisunique(&m), if_bailout(&m);
-    Variable var_index(&m, MachineRepresentation::kWord32);
-
-    m.TryToName(key, &if_keyisindex, &var_index, &if_keyisunique, &if_bailout);
-
-    m.Bind(&if_keyisindex);
-    m.GotoUnless(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kKeyIsIndex))),
-        &failed);
-    m.Branch(m.Word32Equal(m.SmiToWord32(expected_arg), var_index.value()),
-             &passed, &failed);
-
-    m.Bind(&if_keyisunique);
-    m.GotoUnless(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kKeyIsUnique))),
-        &failed);
-    m.Branch(m.WordEqual(expected_arg, key), &passed, &failed);
-
-    m.Bind(&if_bailout);
-    m.Branch(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kBailout))),
-        &passed, &failed);
-
-    m.Bind(&passed);
-    m.Return(m.BooleanConstant(true));
-
-    m.Bind(&failed);
-    m.Return(m.BooleanConstant(false));
-  }
-
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(code, param_count);
-
-  Handle<Object> expect_index(Smi::FromInt(kKeyIsIndex), isolate);
-  Handle<Object> expect_unique(Smi::FromInt(kKeyIsUnique), isolate);
-  Handle<Object> expect_bailout(Smi::FromInt(kBailout), isolate);
-
-  {
-    // TryToName(<zero smi>) => if_keyisindex: smi value.
-    Handle<Object> key(Smi::FromInt(0), isolate);
-    ft.CheckTrue(key, expect_index, key);
-  }
-
-  {
-    // TryToName(<positive smi>) => if_keyisindex: smi value.
-    Handle<Object> key(Smi::FromInt(153), isolate);
-    ft.CheckTrue(key, expect_index, key);
-  }
-
-  {
-    // TryToName(<negative smi>) => bailout.
-    Handle<Object> key(Smi::FromInt(-1), isolate);
-    ft.CheckTrue(key, expect_bailout);
-  }
-
-  {
-    // TryToName(<symbol>) => if_keyisunique: <symbol>.
-    Handle<Object> key = isolate->factory()->NewSymbol();
-    ft.CheckTrue(key, expect_unique, key);
-  }
-
-  {
-    // TryToName(<internalized string>) => if_keyisunique: <internalized string>
-    Handle<Object> key = isolate->factory()->InternalizeUtf8String("test");
-    ft.CheckTrue(key, expect_unique, key);
-  }
-
-  {
-    // TryToName(<internalized number string>) => if_keyisindex: number.
-    Handle<Object> key = isolate->factory()->InternalizeUtf8String("153");
-    Handle<Object> index(Smi::FromInt(153), isolate);
-    ft.CheckTrue(key, expect_index, index);
-  }
-
-  {
-    // TryToName(<non-internalized string>) => bailout.
-    Handle<Object> key = isolate->factory()->NewStringFromAsciiChecked("test");
-    ft.CheckTrue(key, expect_bailout);
-  }
-}
-
-namespace {
-
-template <typename Dictionary>
-void TestNameDictionaryLookup() {
-  typedef CodeStubAssembler::Label Label;
-  typedef CodeStubAssembler::Variable Variable;
-  Isolate* isolate(CcTest::InitIsolateOnce());
-
-  const int param_count = 4;
-  CodeStubAssemblerTester m(isolate, param_count);
-
-  enum Result { kFound, kNotFound };
-  {
-    Node* dictionary = m.Parameter(0);
-    Node* unique_name = m.Parameter(1);
-    Node* expected_result = m.Parameter(2);
-    Node* expected_arg = m.Parameter(3);
-
-    Label passed(&m), failed(&m);
-    Label if_found(&m), if_not_found(&m);
-    Variable var_entry(&m, MachineRepresentation::kWord32);
-
-    m.NameDictionaryLookup<Dictionary>(dictionary, unique_name, &if_found,
-                                       &var_entry, &if_not_found);
-    m.Bind(&if_found);
-    m.GotoUnless(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kFound))),
-        &failed);
-    m.Branch(m.Word32Equal(m.SmiToWord32(expected_arg), var_entry.value()),
-             &passed, &failed);
-
-    m.Bind(&if_not_found);
-    m.Branch(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kNotFound))),
-        &passed, &failed);
-
-    m.Bind(&passed);
-    m.Return(m.BooleanConstant(true));
-
-    m.Bind(&failed);
-    m.Return(m.BooleanConstant(false));
-  }
-
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(code, param_count);
-
-  Handle<Object> expect_found(Smi::FromInt(kFound), isolate);
-  Handle<Object> expect_not_found(Smi::FromInt(kNotFound), isolate);
-
-  Handle<Dictionary> dictionary = Dictionary::New(isolate, 40);
-  PropertyDetails fake_details = PropertyDetails::Empty();
-
-  Factory* factory = isolate->factory();
-  Handle<Name> keys[] = {
-      factory->InternalizeUtf8String("0"),
-      factory->InternalizeUtf8String("42"),
-      factory->InternalizeUtf8String("-153"),
-      factory->InternalizeUtf8String("0.0"),
-      factory->InternalizeUtf8String("4.2"),
-      factory->InternalizeUtf8String(""),
-      factory->InternalizeUtf8String("name"),
-      factory->NewSymbol(),
-      factory->NewPrivateSymbol(),
-  };
-
-  for (size_t i = 0; i < arraysize(keys); i++) {
-    Handle<Object> value = factory->NewPropertyCell();
-    dictionary = Dictionary::Add(dictionary, keys[i], value, fake_details);
-  }
-
-  for (size_t i = 0; i < arraysize(keys); i++) {
-    int entry = dictionary->FindEntry(keys[i]);
-    CHECK_NE(Dictionary::kNotFound, entry);
-
-    Handle<Object> expected_entry(Smi::FromInt(entry), isolate);
-    ft.CheckTrue(dictionary, keys[i], expect_found, expected_entry);
-  }
-
-  Handle<Name> non_existing_keys[] = {
-      factory->InternalizeUtf8String("1"),
-      factory->InternalizeUtf8String("-42"),
-      factory->InternalizeUtf8String("153"),
-      factory->InternalizeUtf8String("-1.0"),
-      factory->InternalizeUtf8String("1.3"),
-      factory->InternalizeUtf8String("a"),
-      factory->InternalizeUtf8String("boom"),
-      factory->NewSymbol(),
-      factory->NewPrivateSymbol(),
-  };
-
-  for (size_t i = 0; i < arraysize(non_existing_keys); i++) {
-    int entry = dictionary->FindEntry(non_existing_keys[i]);
-    CHECK_EQ(Dictionary::kNotFound, entry);
-
-    ft.CheckTrue(dictionary, non_existing_keys[i], expect_not_found);
-  }
-}
-
-}  // namespace
-
-TEST(NameDictionaryLookup) { TestNameDictionaryLookup<NameDictionary>(); }
-
-TEST(GlobalDictionaryLookup) { TestNameDictionaryLookup<GlobalDictionary>(); }
-
-namespace {
-
-template <typename Dictionary>
-void TestNumberDictionaryLookup() {
-  typedef CodeStubAssembler::Label Label;
-  typedef CodeStubAssembler::Variable Variable;
-  Isolate* isolate(CcTest::InitIsolateOnce());
-
-  const int param_count = 4;
-  CodeStubAssemblerTester m(isolate, param_count);
-
-  enum Result { kFound, kNotFound };
-  {
-    Node* dictionary = m.Parameter(0);
-    Node* key = m.SmiToWord32(m.Parameter(1));
-    Node* expected_result = m.Parameter(2);
-    Node* expected_arg = m.Parameter(3);
-
-    Label passed(&m), failed(&m);
-    Label if_found(&m), if_not_found(&m);
-    Variable var_entry(&m, MachineRepresentation::kWord32);
-
-    m.NumberDictionaryLookup<Dictionary>(dictionary, key, &if_found, &var_entry,
-                                         &if_not_found);
-    m.Bind(&if_found);
-    m.GotoUnless(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kFound))),
-        &failed);
-    m.Branch(m.Word32Equal(m.SmiToWord32(expected_arg), var_entry.value()),
-             &passed, &failed);
-
-    m.Bind(&if_not_found);
-    m.Branch(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kNotFound))),
-        &passed, &failed);
-
-    m.Bind(&passed);
-    m.Return(m.BooleanConstant(true));
-
-    m.Bind(&failed);
-    m.Return(m.BooleanConstant(false));
-  }
-
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(code, param_count);
-
-  Handle<Object> expect_found(Smi::FromInt(kFound), isolate);
-  Handle<Object> expect_not_found(Smi::FromInt(kNotFound), isolate);
-
-  const int kKeysCount = 1000;
-  Handle<Dictionary> dictionary = Dictionary::New(isolate, kKeysCount);
-  uint32_t keys[kKeysCount];
-
-  Handle<Object> fake_value(Smi::FromInt(42), isolate);
-  PropertyDetails fake_details = PropertyDetails::Empty();
-
-  base::RandomNumberGenerator rand_gen(FLAG_random_seed);
-
-  for (int i = 0; i < kKeysCount; i++) {
-    int random_key = rand_gen.NextInt(Smi::kMaxValue);
-    keys[i] = static_cast<uint32_t>(random_key);
-
-    dictionary = Dictionary::Add(dictionary, keys[i], fake_value, fake_details);
-  }
-
-  // Now try querying existing keys.
-  for (int i = 0; i < kKeysCount; i++) {
-    int entry = dictionary->FindEntry(keys[i]);
-    CHECK_NE(Dictionary::kNotFound, entry);
-
-    Handle<Object> key(Smi::FromInt(keys[i]), isolate);
-    Handle<Object> expected_entry(Smi::FromInt(entry), isolate);
-    ft.CheckTrue(dictionary, key, expect_found, expected_entry);
-  }
-
-  // Now try querying random keys which do not exist in the dictionary.
-  for (int i = 0; i < kKeysCount;) {
-    int random_key = rand_gen.NextInt(Smi::kMaxValue);
-    int entry = dictionary->FindEntry(random_key);
-    if (entry != Dictionary::kNotFound) continue;
-    i++;
-
-    Handle<Object> key(Smi::FromInt(random_key), isolate);
-    ft.CheckTrue(dictionary, key, expect_not_found);
-  }
-}
-
-}  // namespace
-
-TEST(SeededNumberDictionaryLookup) {
-  TestNumberDictionaryLookup<SeededNumberDictionary>();
-}
-
-TEST(UnseededNumberDictionaryLookup) {
-  TestNumberDictionaryLookup<UnseededNumberDictionary>();
-}
-
-namespace {
-
-void AddProperties(Handle<JSObject> object, Handle<Name> names[],
-                   size_t count) {
-  Handle<Object> value(Smi::FromInt(42), object->GetIsolate());
-  for (size_t i = 0; i < count; i++) {
-    JSObject::AddProperty(object, names[i], value, NONE);
-  }
-}
-
-}  // namespace
-
-TEST(TryLookupProperty) {
-  typedef CodeStubAssembler::Label Label;
-  Isolate* isolate(CcTest::InitIsolateOnce());
-
-  const int param_count = 4;
-  CodeStubAssemblerTester m(isolate, param_count);
-
-  enum Result { kFound, kNotFound, kBailout };
-  {
-    Node* object = m.Parameter(0);
-    Node* unique_name = m.Parameter(1);
-    Node* expected_result = m.Parameter(2);
-
-    Label passed(&m), failed(&m);
-    Label if_found(&m), if_not_found(&m), if_bailout(&m);
-
-    Node* map = m.LoadMap(object);
-    Node* instance_type = m.LoadMapInstanceType(map);
-
-    m.TryLookupProperty(object, map, instance_type, unique_name, &if_found,
-                        &if_not_found, &if_bailout);
-
-    m.Bind(&if_found);
-    m.Branch(m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kFound))),
-             &passed, &failed);
-
-    m.Bind(&if_not_found);
-    m.Branch(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kNotFound))),
-        &passed, &failed);
-
-    m.Bind(&if_bailout);
-    m.Branch(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kBailout))),
-        &passed, &failed);
-
-    m.Bind(&passed);
-    m.Return(m.BooleanConstant(true));
-
-    m.Bind(&failed);
-    m.Return(m.BooleanConstant(false));
-  }
-
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(code, param_count);
-
-  Handle<Object> expect_found(Smi::FromInt(kFound), isolate);
-  Handle<Object> expect_not_found(Smi::FromInt(kNotFound), isolate);
-  Handle<Object> expect_bailout(Smi::FromInt(kBailout), isolate);
-
-  Factory* factory = isolate->factory();
-  Handle<Name> names[] = {
-      factory->InternalizeUtf8String("a"),
-      factory->InternalizeUtf8String("bb"),
-      factory->InternalizeUtf8String("ccc"),
-      factory->InternalizeUtf8String("dddd"),
-      factory->InternalizeUtf8String("eeeee"),
-      factory->InternalizeUtf8String(""),
-      factory->InternalizeUtf8String("name"),
-      factory->NewSymbol(),
-      factory->NewPrivateSymbol(),
-  };
-
-  std::vector<Handle<JSObject>> objects;
-
-  {
-    Handle<JSFunction> function = factory->NewFunction(factory->empty_string());
-    Handle<JSObject> object = factory->NewJSObject(function);
-    AddProperties(object, names, arraysize(names));
-    CHECK_EQ(JS_OBJECT_TYPE, object->map()->instance_type());
-    CHECK(!object->map()->is_dictionary_map());
-    objects.push_back(object);
-  }
-
-  {
-    Handle<JSFunction> function = factory->NewFunction(factory->empty_string());
-    Handle<JSObject> object = factory->NewJSObject(function);
-    AddProperties(object, names, arraysize(names));
-    JSObject::NormalizeProperties(object, CLEAR_INOBJECT_PROPERTIES, 0, "test");
-    CHECK_EQ(JS_OBJECT_TYPE, object->map()->instance_type());
-    CHECK(object->map()->is_dictionary_map());
-    objects.push_back(object);
-  }
-
-  {
-    Handle<JSFunction> function = factory->NewFunction(factory->empty_string());
-    JSFunction::EnsureHasInitialMap(function);
-    function->initial_map()->set_instance_type(JS_GLOBAL_OBJECT_TYPE);
-    function->initial_map()->set_is_prototype_map(true);
-    function->initial_map()->set_dictionary_map(true);
-    Handle<JSObject> object = factory->NewJSGlobalObject(function);
-    AddProperties(object, names, arraysize(names));
-    CHECK_EQ(JS_GLOBAL_OBJECT_TYPE, object->map()->instance_type());
-    CHECK(object->map()->is_dictionary_map());
-    objects.push_back(object);
-  }
-
-  {
-    for (Handle<JSObject> object : objects) {
-      for (size_t name_index = 0; name_index < arraysize(names); name_index++) {
-        Handle<Name> name = names[name_index];
-        CHECK(JSReceiver::HasProperty(object, name).FromJust());
-        ft.CheckTrue(object, name, expect_found);
-      }
-    }
-  }
-
-  {
-    Handle<Name> non_existing_names[] = {
-        factory->InternalizeUtf8String("ne_a"),
-        factory->InternalizeUtf8String("ne_bb"),
-        factory->InternalizeUtf8String("ne_ccc"),
-        factory->InternalizeUtf8String("ne_dddd"),
-    };
-    for (Handle<JSObject> object : objects) {
-      for (size_t key_index = 0; key_index < arraysize(non_existing_names);
-           key_index++) {
-        Handle<Name> key = non_existing_names[key_index];
-        CHECK(!JSReceiver::HasProperty(object, key).FromJust());
-        ft.CheckTrue(object, key, expect_not_found);
-      }
-    }
-  }
-
-  {
-    Handle<JSFunction> function = factory->NewFunction(factory->empty_string());
-    Handle<JSProxy> object = factory->NewJSProxy(function, objects[0]);
-    CHECK_EQ(JS_PROXY_TYPE, object->map()->instance_type());
-    ft.CheckTrue(object, names[0], expect_bailout);
-  }
-
-  {
-    Handle<JSObject> object = isolate->global_proxy();
-    CHECK_EQ(JS_GLOBAL_PROXY_TYPE, object->map()->instance_type());
-    ft.CheckTrue(object, names[0], expect_bailout);
-  }
-}
-
-namespace {
-
-void AddElement(Handle<JSObject> object, uint32_t index, Handle<Object> value,
-                PropertyAttributes attributes = NONE) {
-  JSObject::AddDataElement(object, index, value, attributes).ToHandleChecked();
-}
-
-}  // namespace
-
-TEST(TryLookupElement) {
-  typedef CodeStubAssembler::Label Label;
-  Isolate* isolate(CcTest::InitIsolateOnce());
-
-  const int param_count = 4;
-  CodeStubAssemblerTester m(isolate, param_count);
-
-  enum Result { kFound, kNotFound, kBailout };
-  {
-    Node* object = m.Parameter(0);
-    Node* index = m.SmiToWord32(m.Parameter(1));
-    Node* expected_result = m.Parameter(2);
-
-    Label passed(&m), failed(&m);
-    Label if_found(&m), if_not_found(&m), if_bailout(&m);
-
-    Node* map = m.LoadMap(object);
-    Node* instance_type = m.LoadMapInstanceType(map);
-
-    m.TryLookupElement(object, map, instance_type, index, &if_found,
-                       &if_not_found, &if_bailout);
-
-    m.Bind(&if_found);
-    m.Branch(m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kFound))),
-             &passed, &failed);
-
-    m.Bind(&if_not_found);
-    m.Branch(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kNotFound))),
-        &passed, &failed);
-
-    m.Bind(&if_bailout);
-    m.Branch(
-        m.WordEqual(expected_result, m.SmiConstant(Smi::FromInt(kBailout))),
-        &passed, &failed);
-
-    m.Bind(&passed);
-    m.Return(m.BooleanConstant(true));
-
-    m.Bind(&failed);
-    m.Return(m.BooleanConstant(false));
-  }
-
-  Handle<Code> code = m.GenerateCode();
-  FunctionTester ft(code, param_count);
-
-  Factory* factory = isolate->factory();
-  Handle<Object> smi0(Smi::FromInt(0), isolate);
-  Handle<Object> smi1(Smi::FromInt(1), isolate);
-  Handle<Object> smi7(Smi::FromInt(7), isolate);
-  Handle<Object> smi13(Smi::FromInt(13), isolate);
-  Handle<Object> smi42(Smi::FromInt(42), isolate);
-
-  Handle<Object> expect_found(Smi::FromInt(kFound), isolate);
-  Handle<Object> expect_not_found(Smi::FromInt(kNotFound), isolate);
-  Handle<Object> expect_bailout(Smi::FromInt(kBailout), isolate);
-
-#define CHECK_FOUND(object, index)                         \
-  CHECK(JSReceiver::HasElement(object, index).FromJust()); \
-  ft.CheckTrue(object, smi##index, expect_found);
-
-#define CHECK_NOT_FOUND(object, index)                      \
-  CHECK(!JSReceiver::HasElement(object, index).FromJust()); \
-  ft.CheckTrue(object, smi##index, expect_not_found);
-
-  {
-    Handle<JSArray> object = factory->NewJSArray(0, FAST_SMI_ELEMENTS);
-    AddElement(object, 0, smi0);
-    AddElement(object, 1, smi0);
-    CHECK_EQ(FAST_SMI_ELEMENTS, object->map()->elements_kind());
-
-    CHECK_FOUND(object, 0);
-    CHECK_FOUND(object, 1);
-    CHECK_NOT_FOUND(object, 7);
-    CHECK_NOT_FOUND(object, 13);
-    CHECK_NOT_FOUND(object, 42);
-  }
-
-  {
-    Handle<JSArray> object = factory->NewJSArray(0, FAST_HOLEY_SMI_ELEMENTS);
-    AddElement(object, 0, smi0);
-    AddElement(object, 13, smi0);
-    CHECK_EQ(FAST_HOLEY_SMI_ELEMENTS, object->map()->elements_kind());
-
-    CHECK_FOUND(object, 0);
-    CHECK_NOT_FOUND(object, 1);
-    CHECK_NOT_FOUND(object, 7);
-    CHECK_FOUND(object, 13);
-    CHECK_NOT_FOUND(object, 42);
-  }
-
-  {
-    Handle<JSArray> object = factory->NewJSArray(0, FAST_ELEMENTS);
-    AddElement(object, 0, smi0);
-    AddElement(object, 1, smi0);
-    CHECK_EQ(FAST_ELEMENTS, object->map()->elements_kind());
-
-    CHECK_FOUND(object, 0);
-    CHECK_FOUND(object, 1);
-    CHECK_NOT_FOUND(object, 7);
-    CHECK_NOT_FOUND(object, 13);
-    CHECK_NOT_FOUND(object, 42);
-  }
-
-  {
-    Handle<JSArray> object = factory->NewJSArray(0, FAST_HOLEY_ELEMENTS);
-    AddElement(object, 0, smi0);
-    AddElement(object, 13, smi0);
-    CHECK_EQ(FAST_HOLEY_ELEMENTS, object->map()->elements_kind());
-
-    CHECK_FOUND(object, 0);
-    CHECK_NOT_FOUND(object, 1);
-    CHECK_NOT_FOUND(object, 7);
-    CHECK_FOUND(object, 13);
-    CHECK_NOT_FOUND(object, 42);
-  }
-
-  {
-    Handle<JSFunction> constructor = isolate->string_function();
-    Handle<JSObject> object = factory->NewJSObject(constructor);
-    Handle<String> str = factory->InternalizeUtf8String("ab");
-    Handle<JSValue>::cast(object)->set_value(*str);
-    AddElement(object, 13, smi0);
-    CHECK_EQ(FAST_STRING_WRAPPER_ELEMENTS, object->map()->elements_kind());
-
-    CHECK_FOUND(object, 0);
-    CHECK_FOUND(object, 1);
-    CHECK_NOT_FOUND(object, 7);
-    CHECK_FOUND(object, 13);
-    CHECK_NOT_FOUND(object, 42);
-  }
-
-  {
-    Handle<JSFunction> constructor = isolate->string_function();
-    Handle<JSObject> object = factory->NewJSObject(constructor);
-    Handle<String> str = factory->InternalizeUtf8String("ab");
-    Handle<JSValue>::cast(object)->set_value(*str);
-    AddElement(object, 13, smi0);
-    JSObject::NormalizeElements(object);
-    CHECK_EQ(SLOW_STRING_WRAPPER_ELEMENTS, object->map()->elements_kind());
-
-    CHECK_FOUND(object, 0);
-    CHECK_FOUND(object, 1);
-    CHECK_NOT_FOUND(object, 7);
-    CHECK_FOUND(object, 13);
-    CHECK_NOT_FOUND(object, 42);
-  }
-
-// TODO(ishell): uncomment once NO_ELEMENTS kind is supported.
-//  {
-//    Handle<Map> map = Map::Create(isolate, 0);
-//    map->set_elements_kind(NO_ELEMENTS);
-//    Handle<JSObject> object = factory->NewJSObjectFromMap(map);
-//    CHECK_EQ(NO_ELEMENTS, object->map()->elements_kind());
-//
-//    CHECK_NOT_FOUND(object, 0);
-//    CHECK_NOT_FOUND(object, 1);
-//    CHECK_NOT_FOUND(object, 7);
-//    CHECK_NOT_FOUND(object, 13);
-//    CHECK_NOT_FOUND(object, 42);
-//  }
-
-#undef CHECK_FOUND
-#undef CHECK_NOT_FOUND
-
-  {
-    Handle<JSArray> handler = factory->NewJSArray(0);
-    Handle<JSFunction> function = factory->NewFunction(factory->empty_string());
-    Handle<JSProxy> object = factory->NewJSProxy(function, handler);
-    CHECK_EQ(JS_PROXY_TYPE, object->map()->instance_type());
-    ft.CheckTrue(object, smi0, expect_bailout);
-  }
-
-  {
-    Handle<JSObject> object = isolate->global_object();
-    CHECK_EQ(JS_GLOBAL_OBJECT_TYPE, object->map()->instance_type());
-    ft.CheckTrue(object, smi0, expect_bailout);
-  }
-
-  {
-    Handle<JSObject> object = isolate->global_proxy();
-    CHECK_EQ(JS_GLOBAL_PROXY_TYPE, object->map()->instance_type());
-    ft.CheckTrue(object, smi0, expect_bailout);
-  }
-}
-
-}  // namespace internal
-}  // namespace v8