| // 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.LoadFixedArrayElementSmiIndex(m.HeapConstant(array), |
| m.SmiTag(m.Int32Constant(4)))); |
| 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()); |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |