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

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

Index: test/cctest/compiler/test-code-stub-assembler.cc
diff --git a/test/cctest/compiler/test-code-stub-assembler.cc b/test/cctest/compiler/test-code-stub-assembler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..37ba9e9904fa7148e3f4f15e8551fbc8d62b36af
--- /dev/null
+++ b/test/cctest/compiler/test-code-stub-assembler.cc
@@ -0,0 +1,394 @@
+// 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/interface-descriptors.h"
+#include "src/isolate.h"
+#include "test/cctest/compiler/function-tester.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+
+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"),
+        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"),
+        scope_(isolate) {}
+
+ private:
+  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));
+}
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8