| // 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/bootstrapper.h" |
| #include "src/callable.h" |
| #include "src/code-stubs.h" |
| #include "src/compiler/common-operator.h" |
| #include "src/compiler/graph.h" |
| #include "src/compiler/js-graph.h" |
| #include "src/compiler/js-operator.h" |
| #include "src/compiler/linkage.h" |
| #include "src/compiler/machine-operator.h" |
| #include "src/compiler/pipeline.h" |
| #include "src/objects-inl.h" |
| #include "src/objects/js-array-inl.h" |
| #include "src/optimized-compilation-info.h" |
| #include "test/cctest/compiler/function-tester.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| class StubTester { |
| public: |
| StubTester(Zone* zone, CodeStub* stub) |
| : zone_(zone), |
| info_(ArrayVector("test"), zone, Code::STUB), |
| interface_descriptor_(stub->GetCallInterfaceDescriptor()), |
| descriptor_(Linkage::GetStubCallDescriptor( |
| zone, interface_descriptor_, stub->GetStackParameterCount(), |
| CallDescriptor::kNoFlags, Operator::kNoProperties)), |
| graph_(zone_), |
| common_(zone_), |
| tester_(InitializeFunctionTester(stub->GetCode()), |
| GetParameterCountWithContext()) {} |
| |
| StubTester(Isolate* isolate, Zone* zone, Builtins::Name name) |
| : zone_(zone), |
| info_(ArrayVector("test"), zone, Code::STUB), |
| interface_descriptor_( |
| Builtins::CallableFor(isolate, name).descriptor()), |
| descriptor_(Linkage::GetStubCallDescriptor( |
| zone, interface_descriptor_, |
| interface_descriptor_.GetStackParameterCount(), |
| CallDescriptor::kNoFlags, Operator::kNoProperties)), |
| graph_(zone_), |
| common_(zone_), |
| tester_(InitializeFunctionTester( |
| Handle<Code>(isolate->builtins()->builtin(name), isolate)), |
| GetParameterCountWithContext()) {} |
| |
| template <typename... Args> |
| Handle<Object> Call(Args... args) { |
| DCHECK_EQ(interface_descriptor_.GetParameterCount(), sizeof...(args)); |
| MaybeHandle<Object> result = |
| tester_ |
| .Call(args..., |
| Handle<HeapObject>(tester_.function->context(), ft().isolate)) |
| .ToHandleChecked(); |
| return result.ToHandleChecked(); |
| } |
| |
| FunctionTester& ft() { return tester_; } |
| |
| private: |
| Graph* InitializeFunctionTester(Handle<Code> stub) { |
| // Add target, effect and control. |
| int node_count = GetParameterCountWithContext() + 3; |
| // Add extra inputs for the JSFunction parameter and the receiver (which for |
| // the tester is always undefined) to the start node. |
| Node* start = |
| graph_.NewNode(common_.Start(GetParameterCountWithContext() + 2)); |
| Node** node_array = zone_->NewArray<Node*>(node_count); |
| node_array[0] = graph_.NewNode(common_.HeapConstant(stub)); |
| for (int i = 0; i < GetParameterCountWithContext(); ++i) { |
| CHECK(IsAnyTagged(descriptor_->GetParameterType(i).representation())); |
| node_array[i + 1] = graph_.NewNode(common_.Parameter(i + 1), start); |
| } |
| node_array[node_count - 2] = start; |
| node_array[node_count - 1] = start; |
| Node* call = |
| graph_.NewNode(common_.Call(descriptor_), node_count, &node_array[0]); |
| |
| Node* zero = graph_.NewNode(common_.Int32Constant(0)); |
| Node* ret = graph_.NewNode(common_.Return(), zero, call, call, start); |
| Node* end = graph_.NewNode(common_.End(1), ret); |
| graph_.SetStart(start); |
| graph_.SetEnd(end); |
| return &graph_; |
| } |
| |
| int GetParameterCountWithContext() { |
| return interface_descriptor_.GetParameterCount() + 1; |
| } |
| |
| Zone* zone_; |
| OptimizedCompilationInfo info_; |
| CallInterfaceDescriptor interface_descriptor_; |
| CallDescriptor* descriptor_; |
| Graph graph_; |
| CommonOperatorBuilder common_; |
| FunctionTester tester_; |
| }; |
| |
| TEST(RunStringWrapperLengthStub) { |
| HandleAndZoneScope scope; |
| Isolate* isolate = scope.main_isolate(); |
| Zone* zone = scope.main_zone(); |
| |
| StubTester tester(isolate, zone, Builtins::kLoadIC_StringWrapperLength); |
| |
| // Actuall call through to the stub, verifying its result. |
| const char* testString = "Und das Lamm schrie HURZ!"; |
| Handle<Object> receiverArg = |
| Object::ToObject(isolate, tester.ft().Val(testString)).ToHandleChecked(); |
| Handle<Object> nameArg = tester.ft().Val("length"); |
| Handle<Object> slot = tester.ft().Val(0.0); |
| Handle<Object> vector = tester.ft().Val(0.0); |
| Handle<Object> result = tester.Call(receiverArg, nameArg, slot, vector); |
| CHECK_EQ(static_cast<int>(strlen(testString)), Smi::ToInt(*result)); |
| } |
| |
| TEST(RunArrayExtractStubSimple) { |
| HandleAndZoneScope scope; |
| Isolate* isolate = scope.main_isolate(); |
| Zone* zone = scope.main_zone(); |
| |
| StubTester tester(isolate, zone, Builtins::kExtractFastJSArray); |
| |
| // Actuall call through to the stub, verifying its result. |
| Handle<JSArray> source_array = isolate->factory()->NewJSArray( |
| PACKED_ELEMENTS, 5, 10, INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE); |
| FixedArray source_elements = FixedArray::cast(source_array->elements()); |
| source_elements->set(0, Smi::FromInt(5)); |
| source_elements->set(1, Smi::FromInt(4)); |
| source_elements->set(2, Smi::FromInt(3)); |
| source_elements->set(3, Smi::FromInt(2)); |
| source_elements->set(4, Smi::FromInt(1)); |
| Handle<JSArray> result = Handle<JSArray>::cast( |
| tester.Call(source_array, Handle<Smi>(Smi::FromInt(0), isolate), |
| Handle<Smi>(Smi::FromInt(5), isolate))); |
| CHECK_NE(*source_array, *result); |
| CHECK_EQ(result->GetElementsKind(), PACKED_ELEMENTS); |
| FixedArray result_elements = FixedArray::cast(result->elements()); |
| CHECK_EQ(result_elements->get(0), Smi::FromInt(5)); |
| CHECK_EQ(result_elements->get(1), Smi::FromInt(4)); |
| CHECK_EQ(result_elements->get(2), Smi::FromInt(3)); |
| CHECK_EQ(result_elements->get(3), Smi::FromInt(2)); |
| CHECK_EQ(result_elements->get(4), Smi::FromInt(1)); |
| } |
| |
| TEST(RunArrayExtractDoubleStubSimple) { |
| HandleAndZoneScope scope; |
| Isolate* isolate = scope.main_isolate(); |
| Zone* zone = scope.main_zone(); |
| |
| StubTester tester(isolate, zone, Builtins::kExtractFastJSArray); |
| |
| // Actuall call through to the stub, verifying its result. |
| Handle<JSArray> source_array = isolate->factory()->NewJSArray( |
| PACKED_DOUBLE_ELEMENTS, 5, 10, INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE); |
| FixedDoubleArray source_elements = |
| FixedDoubleArray::cast(source_array->elements()); |
| source_elements->set(0, 5); |
| source_elements->set(1, 4); |
| source_elements->set(2, 3); |
| source_elements->set(3, 2); |
| source_elements->set(4, 1); |
| Handle<JSArray> result = Handle<JSArray>::cast( |
| tester.Call(source_array, Handle<Smi>(Smi::FromInt(0), isolate), |
| Handle<Smi>(Smi::FromInt(5), isolate))); |
| CHECK_NE(*source_array, *result); |
| CHECK_EQ(result->GetElementsKind(), PACKED_DOUBLE_ELEMENTS); |
| FixedDoubleArray result_elements = FixedDoubleArray::cast(result->elements()); |
| CHECK_EQ(result_elements->get_scalar(0), 5); |
| CHECK_EQ(result_elements->get_scalar(1), 4); |
| CHECK_EQ(result_elements->get_scalar(2), 3); |
| CHECK_EQ(result_elements->get_scalar(3), 2); |
| CHECK_EQ(result_elements->get_scalar(4), 1); |
| } |
| |
| TEST(RunArrayExtractStubTooBigForNewSpace) { |
| HandleAndZoneScope scope; |
| Isolate* isolate = scope.main_isolate(); |
| Zone* zone = scope.main_zone(); |
| |
| StubTester tester(isolate, zone, Builtins::kExtractFastJSArray); |
| |
| // Actuall call through to the stub, verifying its result. |
| Handle<JSArray> source_array = isolate->factory()->NewJSArray( |
| PACKED_ELEMENTS, 500000, 500000, INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE); |
| Handle<FixedArray> source_elements(FixedArray::cast(source_array->elements()), |
| isolate); |
| for (int i = 0; i < 500000; ++i) { |
| source_elements->set(i, Smi::FromInt(i)); |
| } |
| Handle<JSArray> result = Handle<JSArray>::cast( |
| tester.Call(source_array, Handle<Smi>(Smi::FromInt(0), isolate), |
| Handle<Smi>(Smi::FromInt(500000), isolate))); |
| CHECK_NE(*source_array, *result); |
| CHECK_EQ(result->GetElementsKind(), PACKED_ELEMENTS); |
| FixedArray result_elements = FixedArray::cast(result->elements()); |
| for (int i = 0; i < 500000; ++i) { |
| CHECK_EQ(source_elements->get(i), result_elements->get(i)); |
| } |
| } |
| |
| TEST(RunArrayExtractDoubleStubTooBigForNewSpace) { |
| HandleAndZoneScope scope; |
| Isolate* isolate = scope.main_isolate(); |
| Zone* zone = scope.main_zone(); |
| |
| StubTester tester(isolate, zone, Builtins::kExtractFastJSArray); |
| |
| // Actuall call through to the stub, verifying its result. |
| Handle<JSArray> source_array = isolate->factory()->NewJSArray( |
| PACKED_DOUBLE_ELEMENTS, 500000, 500000, |
| INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE, TENURED); |
| Handle<FixedDoubleArray> source_elements( |
| FixedDoubleArray::cast(source_array->elements()), isolate); |
| for (int i = 0; i < 500000; ++i) { |
| source_elements->set(i, i); |
| } |
| Handle<JSArray> result = Handle<JSArray>::cast( |
| tester.Call(source_array, Handle<Smi>(Smi::FromInt(0), isolate), |
| Handle<Smi>(Smi::FromInt(500000), isolate))); |
| CHECK_NE(*source_array, *result); |
| CHECK_EQ(result->GetElementsKind(), PACKED_DOUBLE_ELEMENTS); |
| FixedDoubleArray result_elements = FixedDoubleArray::cast(result->elements()); |
| for (int i = 0; i < 500000; ++i) { |
| CHECK_EQ(source_elements->get_scalar(i), result_elements->get_scalar(i)); |
| } |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |