| // Copyright 2014 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/compiler/pipeline.h" |
| |
| #include <fstream> // NOLINT(readability/streams) |
| #include <sstream> |
| |
| #include "src/base/adapters.h" |
| #include "src/base/platform/elapsed-timer.h" |
| #include "src/compiler/ast-graph-builder.h" |
| #include "src/compiler/ast-loop-assignment-analyzer.h" |
| #include "src/compiler/basic-block-instrumentor.h" |
| #include "src/compiler/bytecode-graph-builder.h" |
| #include "src/compiler/change-lowering.h" |
| #include "src/compiler/code-generator.h" |
| #include "src/compiler/common-operator-reducer.h" |
| #include "src/compiler/control-flow-optimizer.h" |
| #include "src/compiler/dead-code-elimination.h" |
| #include "src/compiler/frame-elider.h" |
| #include "src/compiler/graph-replay.h" |
| #include "src/compiler/graph-trimmer.h" |
| #include "src/compiler/graph-visualizer.h" |
| #include "src/compiler/greedy-allocator.h" |
| #include "src/compiler/instruction.h" |
| #include "src/compiler/instruction-selector.h" |
| #include "src/compiler/js-builtin-reducer.h" |
| #include "src/compiler/js-context-relaxation.h" |
| #include "src/compiler/js-context-specialization.h" |
| #include "src/compiler/js-frame-specialization.h" |
| #include "src/compiler/js-generic-lowering.h" |
| #include "src/compiler/js-global-specialization.h" |
| #include "src/compiler/js-inlining-heuristic.h" |
| #include "src/compiler/js-intrinsic-lowering.h" |
| #include "src/compiler/js-type-feedback.h" |
| #include "src/compiler/js-type-feedback-lowering.h" |
| #include "src/compiler/js-typed-lowering.h" |
| #include "src/compiler/jump-threading.h" |
| #include "src/compiler/live-range-separator.h" |
| #include "src/compiler/load-elimination.h" |
| #include "src/compiler/loop-analysis.h" |
| #include "src/compiler/loop-peeling.h" |
| #include "src/compiler/machine-operator-reducer.h" |
| #include "src/compiler/move-optimizer.h" |
| #include "src/compiler/osr.h" |
| #include "src/compiler/pipeline-statistics.h" |
| #include "src/compiler/register-allocator.h" |
| #include "src/compiler/register-allocator-verifier.h" |
| #include "src/compiler/schedule.h" |
| #include "src/compiler/scheduler.h" |
| #include "src/compiler/select-lowering.h" |
| #include "src/compiler/simplified-lowering.h" |
| #include "src/compiler/simplified-operator-reducer.h" |
| #include "src/compiler/tail-call-optimization.h" |
| #include "src/compiler/typer.h" |
| #include "src/compiler/value-numbering-reducer.h" |
| #include "src/compiler/verifier.h" |
| #include "src/compiler/zone-pool.h" |
| #include "src/ostreams.h" |
| #include "src/register-configuration.h" |
| #include "src/type-info.h" |
| #include "src/utils.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| class PipelineData { |
| public: |
| // For main entry point. |
| PipelineData(ZonePool* zone_pool, CompilationInfo* info, |
| PipelineStatistics* pipeline_statistics) |
| : isolate_(info->isolate()), |
| info_(info), |
| outer_zone_(info_->zone()), |
| zone_pool_(zone_pool), |
| pipeline_statistics_(pipeline_statistics), |
| compilation_failed_(false), |
| code_(Handle<Code>::null()), |
| graph_zone_scope_(zone_pool_), |
| graph_zone_(graph_zone_scope_.zone()), |
| graph_(nullptr), |
| loop_assignment_(nullptr), |
| machine_(nullptr), |
| common_(nullptr), |
| javascript_(nullptr), |
| jsgraph_(nullptr), |
| js_type_feedback_(nullptr), |
| schedule_(nullptr), |
| instruction_zone_scope_(zone_pool_), |
| instruction_zone_(instruction_zone_scope_.zone()), |
| sequence_(nullptr), |
| frame_(nullptr), |
| register_allocation_zone_scope_(zone_pool_), |
| register_allocation_zone_(register_allocation_zone_scope_.zone()), |
| register_allocation_data_(nullptr) { |
| PhaseScope scope(pipeline_statistics, "init pipeline data"); |
| graph_ = new (graph_zone_) Graph(graph_zone_); |
| source_positions_.Reset(new SourcePositionTable(graph_)); |
| machine_ = new (graph_zone_) MachineOperatorBuilder( |
| graph_zone_, kMachPtr, |
| InstructionSelector::SupportedMachineOperatorFlags()); |
| common_ = new (graph_zone_) CommonOperatorBuilder(graph_zone_); |
| javascript_ = new (graph_zone_) JSOperatorBuilder(graph_zone_); |
| jsgraph_ = new (graph_zone_) |
| JSGraph(isolate_, graph_, common_, javascript_, machine_); |
| } |
| |
| // For machine graph testing entry point. |
| PipelineData(ZonePool* zone_pool, CompilationInfo* info, Graph* graph, |
| Schedule* schedule) |
| : isolate_(info->isolate()), |
| info_(info), |
| outer_zone_(nullptr), |
| zone_pool_(zone_pool), |
| pipeline_statistics_(nullptr), |
| compilation_failed_(false), |
| code_(Handle<Code>::null()), |
| graph_zone_scope_(zone_pool_), |
| graph_zone_(nullptr), |
| graph_(graph), |
| source_positions_(new SourcePositionTable(graph_)), |
| loop_assignment_(nullptr), |
| machine_(nullptr), |
| common_(nullptr), |
| javascript_(nullptr), |
| jsgraph_(nullptr), |
| js_type_feedback_(nullptr), |
| schedule_(schedule), |
| instruction_zone_scope_(zone_pool_), |
| instruction_zone_(instruction_zone_scope_.zone()), |
| sequence_(nullptr), |
| frame_(nullptr), |
| register_allocation_zone_scope_(zone_pool_), |
| register_allocation_zone_(register_allocation_zone_scope_.zone()), |
| register_allocation_data_(nullptr) {} |
| |
| // For register allocation testing entry point. |
| PipelineData(ZonePool* zone_pool, CompilationInfo* info, |
| InstructionSequence* sequence) |
| : isolate_(info->isolate()), |
| info_(info), |
| outer_zone_(nullptr), |
| zone_pool_(zone_pool), |
| pipeline_statistics_(nullptr), |
| compilation_failed_(false), |
| code_(Handle<Code>::null()), |
| graph_zone_scope_(zone_pool_), |
| graph_zone_(nullptr), |
| graph_(nullptr), |
| loop_assignment_(nullptr), |
| machine_(nullptr), |
| common_(nullptr), |
| javascript_(nullptr), |
| jsgraph_(nullptr), |
| js_type_feedback_(nullptr), |
| schedule_(nullptr), |
| instruction_zone_scope_(zone_pool_), |
| instruction_zone_(sequence->zone()), |
| sequence_(sequence), |
| frame_(nullptr), |
| register_allocation_zone_scope_(zone_pool_), |
| register_allocation_zone_(register_allocation_zone_scope_.zone()), |
| register_allocation_data_(nullptr) {} |
| |
| ~PipelineData() { |
| DeleteRegisterAllocationZone(); |
| DeleteInstructionZone(); |
| DeleteGraphZone(); |
| } |
| |
| Isolate* isolate() const { return isolate_; } |
| CompilationInfo* info() const { return info_; } |
| ZonePool* zone_pool() const { return zone_pool_; } |
| PipelineStatistics* pipeline_statistics() { return pipeline_statistics_; } |
| bool compilation_failed() const { return compilation_failed_; } |
| void set_compilation_failed() { compilation_failed_ = true; } |
| Handle<Code> code() { return code_; } |
| void set_code(Handle<Code> code) { |
| DCHECK(code_.is_null()); |
| code_ = code; |
| } |
| |
| // RawMachineAssembler generally produces graphs which cannot be verified. |
| bool MayHaveUnverifiableGraph() const { return outer_zone_ == nullptr; } |
| |
| Zone* graph_zone() const { return graph_zone_; } |
| Graph* graph() const { return graph_; } |
| SourcePositionTable* source_positions() const { |
| return source_positions_.get(); |
| } |
| MachineOperatorBuilder* machine() const { return machine_; } |
| CommonOperatorBuilder* common() const { return common_; } |
| JSOperatorBuilder* javascript() const { return javascript_; } |
| JSGraph* jsgraph() const { return jsgraph_; } |
| JSTypeFeedbackTable* js_type_feedback() { return js_type_feedback_; } |
| void set_js_type_feedback(JSTypeFeedbackTable* js_type_feedback) { |
| js_type_feedback_ = js_type_feedback; |
| } |
| |
| LoopAssignmentAnalysis* loop_assignment() const { return loop_assignment_; } |
| void set_loop_assignment(LoopAssignmentAnalysis* loop_assignment) { |
| DCHECK(!loop_assignment_); |
| loop_assignment_ = loop_assignment; |
| } |
| |
| Schedule* schedule() const { return schedule_; } |
| void set_schedule(Schedule* schedule) { |
| DCHECK(!schedule_); |
| schedule_ = schedule; |
| } |
| |
| Zone* instruction_zone() const { return instruction_zone_; } |
| InstructionSequence* sequence() const { return sequence_; } |
| Frame* frame() const { return frame_; } |
| |
| Zone* register_allocation_zone() const { return register_allocation_zone_; } |
| RegisterAllocationData* register_allocation_data() const { |
| return register_allocation_data_; |
| } |
| |
| void DeleteGraphZone() { |
| // Destroy objects with destructors first. |
| source_positions_.Reset(nullptr); |
| if (graph_zone_ == nullptr) return; |
| // Destroy zone and clear pointers. |
| graph_zone_scope_.Destroy(); |
| graph_zone_ = nullptr; |
| graph_ = nullptr; |
| loop_assignment_ = nullptr; |
| machine_ = nullptr; |
| common_ = nullptr; |
| javascript_ = nullptr; |
| jsgraph_ = nullptr; |
| js_type_feedback_ = nullptr; |
| schedule_ = nullptr; |
| } |
| |
| void DeleteInstructionZone() { |
| if (instruction_zone_ == nullptr) return; |
| instruction_zone_scope_.Destroy(); |
| instruction_zone_ = nullptr; |
| sequence_ = nullptr; |
| frame_ = nullptr; |
| } |
| |
| void DeleteRegisterAllocationZone() { |
| if (register_allocation_zone_ == nullptr) return; |
| register_allocation_zone_scope_.Destroy(); |
| register_allocation_zone_ = nullptr; |
| register_allocation_data_ = nullptr; |
| } |
| |
| void InitializeInstructionSequence() { |
| DCHECK(sequence_ == nullptr); |
| InstructionBlocks* instruction_blocks = |
| InstructionSequence::InstructionBlocksFor(instruction_zone(), |
| schedule()); |
| sequence_ = new (instruction_zone()) InstructionSequence( |
| info()->isolate(), instruction_zone(), instruction_blocks); |
| } |
| |
| void InitializeRegisterAllocationData(const RegisterConfiguration* config, |
| CallDescriptor* descriptor, |
| const char* debug_name) { |
| DCHECK(frame_ == nullptr); |
| DCHECK(register_allocation_data_ == nullptr); |
| int fixed_frame_size = 0; |
| if (descriptor != nullptr) { |
| fixed_frame_size = (descriptor->kind() == CallDescriptor::kCallAddress) |
| ? StandardFrameConstants::kFixedSlotCountAboveFp + |
| StandardFrameConstants::kCPSlotCount |
| : StandardFrameConstants::kFixedSlotCount; |
| } |
| frame_ = new (instruction_zone()) Frame(fixed_frame_size); |
| register_allocation_data_ = new (register_allocation_zone()) |
| RegisterAllocationData(config, register_allocation_zone(), frame(), |
| sequence(), debug_name); |
| } |
| |
| private: |
| Isolate* isolate_; |
| CompilationInfo* info_; |
| Zone* outer_zone_; |
| ZonePool* const zone_pool_; |
| PipelineStatistics* pipeline_statistics_; |
| bool compilation_failed_; |
| Handle<Code> code_; |
| |
| // All objects in the following group of fields are allocated in graph_zone_. |
| // They are all set to NULL when the graph_zone_ is destroyed. |
| ZonePool::Scope graph_zone_scope_; |
| Zone* graph_zone_; |
| Graph* graph_; |
| // TODO(dcarney): make this into a ZoneObject. |
| base::SmartPointer<SourcePositionTable> source_positions_; |
| LoopAssignmentAnalysis* loop_assignment_; |
| MachineOperatorBuilder* machine_; |
| CommonOperatorBuilder* common_; |
| JSOperatorBuilder* javascript_; |
| JSGraph* jsgraph_; |
| JSTypeFeedbackTable* js_type_feedback_; |
| Schedule* schedule_; |
| |
| // All objects in the following group of fields are allocated in |
| // instruction_zone_. They are all set to NULL when the instruction_zone_ is |
| // destroyed. |
| ZonePool::Scope instruction_zone_scope_; |
| Zone* instruction_zone_; |
| InstructionSequence* sequence_; |
| Frame* frame_; |
| |
| // All objects in the following group of fields are allocated in |
| // register_allocation_zone_. They are all set to NULL when the zone is |
| // destroyed. |
| ZonePool::Scope register_allocation_zone_scope_; |
| Zone* register_allocation_zone_; |
| RegisterAllocationData* register_allocation_data_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PipelineData); |
| }; |
| |
| |
| namespace { |
| |
| struct TurboCfgFile : public std::ofstream { |
| explicit TurboCfgFile(Isolate* isolate) |
| : std::ofstream(isolate->GetTurboCfgFileName().c_str(), |
| std::ios_base::app) {} |
| }; |
| |
| |
| void TraceSchedule(CompilationInfo* info, Schedule* schedule) { |
| if (FLAG_trace_turbo) { |
| FILE* json_file = OpenVisualizerLogFile(info, NULL, "json", "a+"); |
| if (json_file != nullptr) { |
| OFStream json_of(json_file); |
| json_of << "{\"name\":\"Schedule\",\"type\":\"schedule\",\"data\":\""; |
| std::stringstream schedule_stream; |
| schedule_stream << *schedule; |
| std::string schedule_string(schedule_stream.str()); |
| for (const auto& c : schedule_string) { |
| json_of << AsEscapedUC16ForJSON(c); |
| } |
| json_of << "\"},\n"; |
| fclose(json_file); |
| } |
| } |
| if (!FLAG_trace_turbo_graph && !FLAG_trace_turbo_scheduler) return; |
| OFStream os(stdout); |
| os << "-- Schedule --------------------------------------\n" << *schedule; |
| } |
| |
| |
| class AstGraphBuilderWithPositions final : public AstGraphBuilder { |
| public: |
| AstGraphBuilderWithPositions(Zone* local_zone, CompilationInfo* info, |
| JSGraph* jsgraph, |
| LoopAssignmentAnalysis* loop_assignment, |
| JSTypeFeedbackTable* js_type_feedback, |
| SourcePositionTable* source_positions) |
| : AstGraphBuilder(local_zone, info, jsgraph, loop_assignment, |
| js_type_feedback), |
| source_positions_(source_positions), |
| start_position_(info->shared_info()->start_position()) {} |
| |
| bool CreateGraph(bool stack_check) { |
| SourcePositionTable::Scope pos_scope(source_positions_, start_position_); |
| return AstGraphBuilder::CreateGraph(stack_check); |
| } |
| |
| #define DEF_VISIT(type) \ |
| void Visit##type(type* node) override { \ |
| SourcePositionTable::Scope pos(source_positions_, \ |
| SourcePosition(node->position())); \ |
| AstGraphBuilder::Visit##type(node); \ |
| } |
| AST_NODE_LIST(DEF_VISIT) |
| #undef DEF_VISIT |
| |
| private: |
| SourcePositionTable* const source_positions_; |
| SourcePosition const start_position_; |
| }; |
| |
| |
| class SourcePositionWrapper final : public Reducer { |
| public: |
| SourcePositionWrapper(Reducer* reducer, SourcePositionTable* table) |
| : reducer_(reducer), table_(table) {} |
| ~SourcePositionWrapper() final {} |
| |
| Reduction Reduce(Node* node) final { |
| SourcePosition const pos = table_->GetSourcePosition(node); |
| SourcePositionTable::Scope position(table_, pos); |
| return reducer_->Reduce(node); |
| } |
| |
| private: |
| Reducer* const reducer_; |
| SourcePositionTable* const table_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SourcePositionWrapper); |
| }; |
| |
| |
| class JSGraphReducer final : public GraphReducer { |
| public: |
| JSGraphReducer(JSGraph* jsgraph, Zone* zone) |
| : GraphReducer(zone, jsgraph->graph(), jsgraph->Dead()) {} |
| ~JSGraphReducer() final {} |
| }; |
| |
| |
| void AddReducer(PipelineData* data, GraphReducer* graph_reducer, |
| Reducer* reducer) { |
| if (data->info()->is_source_positions_enabled()) { |
| void* const buffer = data->graph_zone()->New(sizeof(SourcePositionWrapper)); |
| SourcePositionWrapper* const wrapper = |
| new (buffer) SourcePositionWrapper(reducer, data->source_positions()); |
| graph_reducer->AddReducer(wrapper); |
| } else { |
| graph_reducer->AddReducer(reducer); |
| } |
| } |
| |
| |
| class PipelineRunScope { |
| public: |
| PipelineRunScope(PipelineData* data, const char* phase_name) |
| : phase_scope_( |
| phase_name == nullptr ? nullptr : data->pipeline_statistics(), |
| phase_name), |
| zone_scope_(data->zone_pool()) {} |
| |
| Zone* zone() { return zone_scope_.zone(); } |
| |
| private: |
| PhaseScope phase_scope_; |
| ZonePool::Scope zone_scope_; |
| }; |
| |
| } // namespace |
| |
| |
| template <typename Phase> |
| void Pipeline::Run() { |
| PipelineRunScope scope(this->data_, Phase::phase_name()); |
| Phase phase; |
| phase.Run(this->data_, scope.zone()); |
| } |
| |
| |
| template <typename Phase, typename Arg0> |
| void Pipeline::Run(Arg0 arg_0) { |
| PipelineRunScope scope(this->data_, Phase::phase_name()); |
| Phase phase; |
| phase.Run(this->data_, scope.zone(), arg_0); |
| } |
| |
| |
| struct LoopAssignmentAnalysisPhase { |
| static const char* phase_name() { return "loop assignment analysis"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| AstLoopAssignmentAnalyzer analyzer(data->graph_zone(), data->info()); |
| LoopAssignmentAnalysis* loop_assignment = analyzer.Analyze(); |
| data->set_loop_assignment(loop_assignment); |
| } |
| }; |
| |
| |
| struct GraphBuilderPhase { |
| static const char* phase_name() { return "graph builder"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| bool stack_check = !data->info()->IsStub(); |
| bool succeeded = false; |
| |
| if (data->info()->shared_info()->HasBytecodeArray()) { |
| BytecodeGraphBuilder graph_builder(temp_zone, data->info(), |
| data->jsgraph()); |
| succeeded = graph_builder.CreateGraph(stack_check); |
| } else { |
| AstGraphBuilderWithPositions graph_builder( |
| temp_zone, data->info(), data->jsgraph(), data->loop_assignment(), |
| data->js_type_feedback(), data->source_positions()); |
| succeeded = graph_builder.CreateGraph(stack_check); |
| } |
| |
| if (!succeeded) { |
| data->set_compilation_failed(); |
| } |
| } |
| }; |
| |
| |
| struct InliningPhase { |
| static const char* phase_name() { return "inlining"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); |
| DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(), |
| data->common()); |
| CommonOperatorReducer common_reducer(&graph_reducer, data->graph(), |
| data->common(), data->machine()); |
| JSContextSpecialization context_specialization( |
| &graph_reducer, data->jsgraph(), |
| data->info()->is_function_context_specializing() |
| ? data->info()->context() |
| : MaybeHandle<Context>()); |
| JSFrameSpecialization frame_specialization(data->info()->osr_frame(), |
| data->jsgraph()); |
| JSGlobalSpecialization::Flags global_flags = |
| JSGlobalSpecialization::kNoFlags; |
| if (data->info()->is_deoptimization_enabled()) { |
| global_flags |= JSGlobalSpecialization::kDeoptimizationEnabled; |
| } |
| if (data->info()->is_typing_enabled()) { |
| global_flags |= JSGlobalSpecialization::kTypingEnabled; |
| } |
| JSGlobalSpecialization global_specialization( |
| &graph_reducer, data->jsgraph(), global_flags, |
| data->info()->has_global_object() |
| ? handle(data->info()->global_object()) |
| : Handle<GlobalObject>(), |
| data->info()->dependencies()); |
| JSInliningHeuristic inlining(&graph_reducer, |
| data->info()->is_inlining_enabled() |
| ? JSInliningHeuristic::kGeneralInlining |
| : JSInliningHeuristic::kRestrictedInlining, |
| temp_zone, data->info(), data->jsgraph()); |
| AddReducer(data, &graph_reducer, &dead_code_elimination); |
| AddReducer(data, &graph_reducer, &common_reducer); |
| if (data->info()->is_frame_specializing()) { |
| AddReducer(data, &graph_reducer, &frame_specialization); |
| } |
| if (data->info()->is_native_context_specializing()) { |
| AddReducer(data, &graph_reducer, &global_specialization); |
| } |
| AddReducer(data, &graph_reducer, &context_specialization); |
| AddReducer(data, &graph_reducer, &inlining); |
| graph_reducer.ReduceGraph(); |
| } |
| }; |
| |
| |
| struct TyperPhase { |
| static const char* phase_name() { return "typer"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone, Typer* typer) { |
| NodeVector roots(temp_zone); |
| data->jsgraph()->GetCachedNodes(&roots); |
| typer->Run(roots); |
| } |
| }; |
| |
| |
| struct OsrDeconstructionPhase { |
| static const char* phase_name() { return "OSR deconstruction"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| OsrHelper osr_helper(data->info()); |
| osr_helper.Deconstruct(data->jsgraph(), data->common(), temp_zone); |
| } |
| }; |
| |
| |
| struct JSTypeFeedbackPhase { |
| static const char* phase_name() { return "type feedback specializing"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| Handle<Context> native_context(data->info()->context()->native_context()); |
| TypeFeedbackOracle oracle(data->isolate(), temp_zone, |
| data->info()->unoptimized_code(), |
| data->info()->feedback_vector(), native_context); |
| JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); |
| Handle<GlobalObject> global_object = Handle<GlobalObject>::null(); |
| if (data->info()->has_global_object()) { |
| global_object = |
| Handle<GlobalObject>(data->info()->global_object(), data->isolate()); |
| } |
| // TODO(titzer): introduce a specialization mode/flags enum to control |
| // specializing to the global object here. |
| JSTypeFeedbackSpecializer specializer( |
| &graph_reducer, data->jsgraph(), data->js_type_feedback(), &oracle, |
| global_object, data->info()->is_deoptimization_enabled() |
| ? JSTypeFeedbackSpecializer::kDeoptimizationEnabled |
| : JSTypeFeedbackSpecializer::kDeoptimizationDisabled, |
| data->info()->dependencies()); |
| AddReducer(data, &graph_reducer, &specializer); |
| graph_reducer.ReduceGraph(); |
| } |
| }; |
| |
| |
| struct TypedLoweringPhase { |
| static const char* phase_name() { return "typed lowering"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); |
| DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(), |
| data->common()); |
| LoadElimination load_elimination(&graph_reducer); |
| JSBuiltinReducer builtin_reducer(&graph_reducer, data->jsgraph()); |
| JSTypedLowering typed_lowering(&graph_reducer, data->jsgraph(), temp_zone); |
| JSTypeFeedbackLowering type_feedback_lowering( |
| &graph_reducer, data->info()->is_deoptimization_enabled() |
| ? JSTypeFeedbackLowering::kDeoptimizationEnabled |
| : JSTypeFeedbackLowering::kNoFlags, |
| data->jsgraph()); |
| JSIntrinsicLowering intrinsic_lowering( |
| &graph_reducer, data->jsgraph(), |
| data->info()->is_deoptimization_enabled() |
| ? JSIntrinsicLowering::kDeoptimizationEnabled |
| : JSIntrinsicLowering::kDeoptimizationDisabled); |
| CommonOperatorReducer common_reducer(&graph_reducer, data->graph(), |
| data->common(), data->machine()); |
| AddReducer(data, &graph_reducer, &dead_code_elimination); |
| AddReducer(data, &graph_reducer, &builtin_reducer); |
| AddReducer(data, &graph_reducer, &typed_lowering); |
| AddReducer(data, &graph_reducer, &intrinsic_lowering); |
| AddReducer(data, &graph_reducer, &type_feedback_lowering); |
| AddReducer(data, &graph_reducer, &load_elimination); |
| AddReducer(data, &graph_reducer, &common_reducer); |
| graph_reducer.ReduceGraph(); |
| } |
| }; |
| |
| |
| struct SimplifiedLoweringPhase { |
| static const char* phase_name() { return "simplified lowering"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| SimplifiedLowering lowering(data->jsgraph(), temp_zone, |
| data->source_positions()); |
| lowering.LowerAllNodes(); |
| JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); |
| DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(), |
| data->common()); |
| SimplifiedOperatorReducer simple_reducer(data->jsgraph()); |
| ValueNumberingReducer value_numbering(temp_zone); |
| MachineOperatorReducer machine_reducer(data->jsgraph()); |
| CommonOperatorReducer common_reducer(&graph_reducer, data->graph(), |
| data->common(), data->machine()); |
| AddReducer(data, &graph_reducer, &dead_code_elimination); |
| AddReducer(data, &graph_reducer, &simple_reducer); |
| AddReducer(data, &graph_reducer, &value_numbering); |
| AddReducer(data, &graph_reducer, &machine_reducer); |
| AddReducer(data, &graph_reducer, &common_reducer); |
| graph_reducer.ReduceGraph(); |
| } |
| }; |
| |
| |
| struct ControlFlowOptimizationPhase { |
| static const char* phase_name() { return "control flow optimization"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| ControlFlowOptimizer optimizer(data->graph(), data->common(), |
| data->machine(), temp_zone); |
| optimizer.Optimize(); |
| } |
| }; |
| |
| |
| struct ChangeLoweringPhase { |
| static const char* phase_name() { return "change lowering"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); |
| DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(), |
| data->common()); |
| SimplifiedOperatorReducer simple_reducer(data->jsgraph()); |
| ValueNumberingReducer value_numbering(temp_zone); |
| ChangeLowering lowering(data->jsgraph()); |
| MachineOperatorReducer machine_reducer(data->jsgraph()); |
| CommonOperatorReducer common_reducer(&graph_reducer, data->graph(), |
| data->common(), data->machine()); |
| AddReducer(data, &graph_reducer, &dead_code_elimination); |
| AddReducer(data, &graph_reducer, &simple_reducer); |
| AddReducer(data, &graph_reducer, &value_numbering); |
| AddReducer(data, &graph_reducer, &lowering); |
| AddReducer(data, &graph_reducer, &machine_reducer); |
| AddReducer(data, &graph_reducer, &common_reducer); |
| graph_reducer.ReduceGraph(); |
| } |
| }; |
| |
| |
| struct EarlyGraphTrimmingPhase { |
| static const char* phase_name() { return "early graph trimming"; } |
| void Run(PipelineData* data, Zone* temp_zone) { |
| GraphTrimmer trimmer(temp_zone, data->graph()); |
| NodeVector roots(temp_zone); |
| data->jsgraph()->GetCachedNodes(&roots); |
| trimmer.TrimGraph(roots.begin(), roots.end()); |
| } |
| }; |
| |
| |
| struct LateGraphTrimmingPhase { |
| static const char* phase_name() { return "late graph trimming"; } |
| void Run(PipelineData* data, Zone* temp_zone) { |
| GraphTrimmer trimmer(temp_zone, data->graph()); |
| NodeVector roots(temp_zone); |
| data->jsgraph()->GetCachedNodes(&roots); |
| trimmer.TrimGraph(roots.begin(), roots.end()); |
| } |
| }; |
| |
| |
| struct StressLoopPeelingPhase { |
| static const char* phase_name() { return "stress loop peeling"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| // Peel the first outer loop for testing. |
| // TODO(titzer): peel all loops? the N'th loop? Innermost loops? |
| LoopTree* loop_tree = LoopFinder::BuildLoopTree(data->graph(), temp_zone); |
| if (loop_tree != NULL && loop_tree->outer_loops().size() > 0) { |
| LoopPeeler::Peel(data->graph(), data->common(), loop_tree, |
| loop_tree->outer_loops()[0], temp_zone); |
| } |
| } |
| }; |
| |
| |
| struct GenericLoweringPhase { |
| static const char* phase_name() { return "generic lowering"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); |
| JSContextRelaxation context_relaxing; |
| DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(), |
| data->common()); |
| CommonOperatorReducer common_reducer(&graph_reducer, data->graph(), |
| data->common(), data->machine()); |
| JSGenericLowering generic_lowering(data->info()->is_typing_enabled(), |
| data->jsgraph()); |
| SelectLowering select_lowering(data->jsgraph()->graph(), |
| data->jsgraph()->common()); |
| TailCallOptimization tco(data->common(), data->graph()); |
| AddReducer(data, &graph_reducer, &context_relaxing); |
| AddReducer(data, &graph_reducer, &dead_code_elimination); |
| AddReducer(data, &graph_reducer, &common_reducer); |
| AddReducer(data, &graph_reducer, &generic_lowering); |
| AddReducer(data, &graph_reducer, &select_lowering); |
| AddReducer(data, &graph_reducer, &tco); |
| graph_reducer.ReduceGraph(); |
| } |
| }; |
| |
| |
| struct ComputeSchedulePhase { |
| static const char* phase_name() { return "scheduling"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| Schedule* schedule = Scheduler::ComputeSchedule( |
| temp_zone, data->graph(), data->info()->is_splitting_enabled() |
| ? Scheduler::kSplitNodes |
| : Scheduler::kNoFlags); |
| if (FLAG_turbo_verify) ScheduleVerifier::Run(schedule); |
| data->set_schedule(schedule); |
| } |
| }; |
| |
| |
| struct InstructionSelectionPhase { |
| static const char* phase_name() { return "select instructions"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone, Linkage* linkage) { |
| InstructionSelector selector( |
| temp_zone, data->graph()->NodeCount(), linkage, data->sequence(), |
| data->schedule(), data->source_positions(), |
| data->info()->is_source_positions_enabled() |
| ? InstructionSelector::kAllSourcePositions |
| : InstructionSelector::kCallSourcePositions); |
| selector.SelectInstructions(); |
| } |
| }; |
| |
| |
| struct MeetRegisterConstraintsPhase { |
| static const char* phase_name() { return "meet register constraints"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| ConstraintBuilder builder(data->register_allocation_data()); |
| builder.MeetRegisterConstraints(); |
| } |
| }; |
| |
| |
| struct ResolvePhisPhase { |
| static const char* phase_name() { return "resolve phis"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| ConstraintBuilder builder(data->register_allocation_data()); |
| builder.ResolvePhis(); |
| } |
| }; |
| |
| |
| struct BuildLiveRangesPhase { |
| static const char* phase_name() { return "build live ranges"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| LiveRangeBuilder builder(data->register_allocation_data(), temp_zone); |
| builder.BuildLiveRanges(); |
| } |
| }; |
| |
| |
| struct SplinterLiveRangesPhase { |
| static const char* phase_name() { return "splinter live ranges"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| LiveRangeSeparator live_range_splinterer(data->register_allocation_data(), |
| temp_zone); |
| live_range_splinterer.Splinter(); |
| } |
| }; |
| |
| |
| template <typename RegAllocator> |
| struct AllocateGeneralRegistersPhase { |
| static const char* phase_name() { return "allocate general registers"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| RegAllocator allocator(data->register_allocation_data(), GENERAL_REGISTERS, |
| temp_zone); |
| allocator.AllocateRegisters(); |
| } |
| }; |
| |
| |
| template <typename RegAllocator> |
| struct AllocateDoubleRegistersPhase { |
| static const char* phase_name() { return "allocate double registers"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| RegAllocator allocator(data->register_allocation_data(), DOUBLE_REGISTERS, |
| temp_zone); |
| allocator.AllocateRegisters(); |
| } |
| }; |
| |
| |
| struct MergeSplintersPhase { |
| static const char* phase_name() { return "merge splintered ranges"; } |
| void Run(PipelineData* pipeline_data, Zone* temp_zone) { |
| RegisterAllocationData* data = pipeline_data->register_allocation_data(); |
| LiveRangeMerger live_range_merger(data, temp_zone); |
| live_range_merger.Merge(); |
| } |
| }; |
| |
| |
| struct LocateSpillSlotsPhase { |
| static const char* phase_name() { return "locate spill slots"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| SpillSlotLocator locator(data->register_allocation_data()); |
| locator.LocateSpillSlots(); |
| } |
| }; |
| |
| |
| struct AssignSpillSlotsPhase { |
| static const char* phase_name() { return "assign spill slots"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| OperandAssigner assigner(data->register_allocation_data()); |
| assigner.AssignSpillSlots(); |
| } |
| }; |
| |
| |
| struct CommitAssignmentPhase { |
| static const char* phase_name() { return "commit assignment"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| OperandAssigner assigner(data->register_allocation_data()); |
| assigner.CommitAssignment(); |
| } |
| }; |
| |
| |
| struct PopulateReferenceMapsPhase { |
| static const char* phase_name() { return "populate pointer maps"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| ReferenceMapPopulator populator(data->register_allocation_data()); |
| populator.PopulateReferenceMaps(); |
| } |
| }; |
| |
| |
| struct ConnectRangesPhase { |
| static const char* phase_name() { return "connect ranges"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| LiveRangeConnector connector(data->register_allocation_data()); |
| connector.ConnectRanges(temp_zone); |
| } |
| }; |
| |
| |
| struct ResolveControlFlowPhase { |
| static const char* phase_name() { return "resolve control flow"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| LiveRangeConnector connector(data->register_allocation_data()); |
| connector.ResolveControlFlow(temp_zone); |
| } |
| }; |
| |
| |
| struct OptimizeMovesPhase { |
| static const char* phase_name() { return "optimize moves"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| MoveOptimizer move_optimizer(temp_zone, data->sequence()); |
| move_optimizer.Run(); |
| } |
| }; |
| |
| |
| struct FrameElisionPhase { |
| static const char* phase_name() { return "frame elision"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| FrameElider(data->sequence()).Run(); |
| } |
| }; |
| |
| |
| struct JumpThreadingPhase { |
| static const char* phase_name() { return "jump threading"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone) { |
| ZoneVector<RpoNumber> result(temp_zone); |
| if (JumpThreading::ComputeForwarding(temp_zone, result, data->sequence())) { |
| JumpThreading::ApplyForwarding(result, data->sequence()); |
| } |
| } |
| }; |
| |
| |
| struct GenerateCodePhase { |
| static const char* phase_name() { return "generate code"; } |
| |
| void Run(PipelineData* data, Zone* temp_zone, Linkage* linkage) { |
| CodeGenerator generator(data->frame(), linkage, data->sequence(), |
| data->info()); |
| data->set_code(generator.GenerateCode()); |
| } |
| }; |
| |
| |
| struct PrintGraphPhase { |
| static const char* phase_name() { return nullptr; } |
| |
| void Run(PipelineData* data, Zone* temp_zone, const char* phase) { |
| CompilationInfo* info = data->info(); |
| Graph* graph = data->graph(); |
| |
| { // Print dot. |
| FILE* dot_file = OpenVisualizerLogFile(info, phase, "dot", "w+"); |
| if (dot_file == nullptr) return; |
| OFStream dot_of(dot_file); |
| dot_of << AsDOT(*graph); |
| fclose(dot_file); |
| } |
| |
| { // Print JSON. |
| FILE* json_file = OpenVisualizerLogFile(info, NULL, "json", "a+"); |
| if (json_file == nullptr) return; |
| OFStream json_of(json_file); |
| json_of << "{\"name\":\"" << phase << "\",\"type\":\"graph\",\"data\":" |
| << AsJSON(*graph, data->source_positions()) << "},\n"; |
| fclose(json_file); |
| } |
| |
| if (FLAG_trace_turbo_graph) { // Simple textual RPO. |
| OFStream os(stdout); |
| os << "-- Graph after " << phase << " -- " << std::endl; |
| os << AsRPO(*graph); |
| } |
| } |
| }; |
| |
| |
| struct VerifyGraphPhase { |
| static const char* phase_name() { return nullptr; } |
| |
| void Run(PipelineData* data, Zone* temp_zone, const bool untyped) { |
| Verifier::Run(data->graph(), FLAG_turbo_types && !untyped |
| ? Verifier::TYPED |
| : Verifier::UNTYPED); |
| } |
| }; |
| |
| |
| void Pipeline::BeginPhaseKind(const char* phase_kind_name) { |
| if (data_->pipeline_statistics() != NULL) { |
| data_->pipeline_statistics()->BeginPhaseKind(phase_kind_name); |
| } |
| } |
| |
| |
| void Pipeline::RunPrintAndVerify(const char* phase, bool untyped) { |
| if (FLAG_trace_turbo) { |
| Run<PrintGraphPhase>(phase); |
| } |
| if (FLAG_turbo_verify) { |
| Run<VerifyGraphPhase>(untyped); |
| } |
| } |
| |
| |
| Handle<Code> Pipeline::GenerateCode() { |
| // TODO(mstarzinger): This is just a temporary hack to make TurboFan work, |
| // the correct solution is to restore the context register after invoking |
| // builtins from full-codegen. |
| if (Context::IsJSBuiltin(isolate()->native_context(), info()->closure())) { |
| return Handle<Code>::null(); |
| } |
| |
| ZonePool zone_pool; |
| base::SmartPointer<PipelineStatistics> pipeline_statistics; |
| |
| if (FLAG_turbo_stats) { |
| pipeline_statistics.Reset(new PipelineStatistics(info(), &zone_pool)); |
| pipeline_statistics->BeginPhaseKind("initializing"); |
| } |
| |
| if (FLAG_trace_turbo) { |
| FILE* json_file = OpenVisualizerLogFile(info(), NULL, "json", "w+"); |
| if (json_file != nullptr) { |
| OFStream json_of(json_file); |
| Handle<Script> script = info()->script(); |
| FunctionLiteral* function = info()->literal(); |
| base::SmartArrayPointer<char> function_name = info()->GetDebugName(); |
| int pos = info()->shared_info()->start_position(); |
| json_of << "{\"function\":\"" << function_name.get() |
| << "\", \"sourcePosition\":" << pos << ", \"source\":\""; |
| if (!script->IsUndefined() && !script->source()->IsUndefined()) { |
| DisallowHeapAllocation no_allocation; |
| int start = function->start_position(); |
| int len = function->end_position() - start; |
| String::SubStringRange source(String::cast(script->source()), start, |
| len); |
| for (const auto& c : source) { |
| json_of << AsEscapedUC16ForJSON(c); |
| } |
| } |
| json_of << "\",\n\"phases\":["; |
| fclose(json_file); |
| } |
| } |
| |
| PipelineData data(&zone_pool, info(), pipeline_statistics.get()); |
| this->data_ = &data; |
| |
| if (info()->is_type_feedback_enabled()) { |
| data.set_js_type_feedback(new (data.graph_zone()) |
| JSTypeFeedbackTable(data.graph_zone())); |
| } |
| |
| BeginPhaseKind("graph creation"); |
| |
| if (FLAG_trace_turbo) { |
| OFStream os(stdout); |
| os << "---------------------------------------------------\n" |
| << "Begin compiling method " << info()->GetDebugName().get() |
| << " using Turbofan" << std::endl; |
| TurboCfgFile tcf(isolate()); |
| tcf << AsC1VCompilation(info()); |
| } |
| |
| data.source_positions()->AddDecorator(); |
| |
| if (FLAG_loop_assignment_analysis) { |
| Run<LoopAssignmentAnalysisPhase>(); |
| } |
| |
| Run<GraphBuilderPhase>(); |
| if (data.compilation_failed()) return Handle<Code>::null(); |
| RunPrintAndVerify("Initial untyped", true); |
| |
| // Perform OSR deconstruction. |
| if (info()->is_osr()) { |
| Run<OsrDeconstructionPhase>(); |
| RunPrintAndVerify("OSR deconstruction", true); |
| } |
| |
| // Perform context specialization and inlining (if enabled). |
| Run<InliningPhase>(); |
| RunPrintAndVerify("Inlined", true); |
| |
| // Remove dead->live edges from the graph. |
| Run<EarlyGraphTrimmingPhase>(); |
| RunPrintAndVerify("Early trimmed", true); |
| |
| if (FLAG_print_turbo_replay) { |
| // Print a replay of the initial graph. |
| GraphReplayPrinter::PrintReplay(data.graph()); |
| } |
| |
| base::SmartPointer<Typer> typer; |
| if (info()->is_typing_enabled()) { |
| // Type the graph. |
| typer.Reset(new Typer(isolate(), data.graph(), info()->function_type())); |
| Run<TyperPhase>(typer.get()); |
| RunPrintAndVerify("Typed"); |
| } |
| |
| BeginPhaseKind("lowering"); |
| |
| if (info()->is_typing_enabled()) { |
| // Lower JSOperators where we can determine types. |
| Run<TypedLoweringPhase>(); |
| RunPrintAndVerify("Lowered typed"); |
| |
| if (FLAG_turbo_stress_loop_peeling) { |
| Run<StressLoopPeelingPhase>(); |
| RunPrintAndVerify("Loop peeled"); |
| } |
| |
| if (info()->is_type_feedback_enabled()) { |
| Run<JSTypeFeedbackPhase>(); |
| RunPrintAndVerify("JSType feedback"); |
| } |
| |
| // Lower simplified operators and insert changes. |
| Run<SimplifiedLoweringPhase>(); |
| RunPrintAndVerify("Lowered simplified"); |
| |
| // Optimize control flow. |
| if (FLAG_turbo_cf_optimization) { |
| Run<ControlFlowOptimizationPhase>(); |
| RunPrintAndVerify("Control flow optimized"); |
| } |
| |
| // Lower changes that have been inserted before. |
| Run<ChangeLoweringPhase>(); |
| // TODO(jarin, rossberg): Remove UNTYPED once machine typing works. |
| RunPrintAndVerify("Lowered changes", true); |
| } |
| |
| // Lower any remaining generic JSOperators. |
| Run<GenericLoweringPhase>(); |
| // TODO(jarin, rossberg): Remove UNTYPED once machine typing works. |
| RunPrintAndVerify("Lowered generic", true); |
| |
| Run<LateGraphTrimmingPhase>(); |
| // TODO(jarin, rossberg): Remove UNTYPED once machine typing works. |
| RunPrintAndVerify("Late trimmed", true); |
| |
| BeginPhaseKind("block building"); |
| |
| data.source_positions()->RemoveDecorator(); |
| |
| // Kill the Typer and thereby uninstall the decorator (if any). |
| typer.Reset(nullptr); |
| |
| return ScheduleAndGenerateCode( |
| Linkage::ComputeIncoming(data.instruction_zone(), info())); |
| } |
| |
| |
| Handle<Code> Pipeline::GenerateCodeForInterpreter( |
| Isolate* isolate, CallDescriptor* call_descriptor, Graph* graph, |
| Schedule* schedule, const char* bytecode_name) { |
| CompilationInfo info(bytecode_name, isolate, graph->zone()); |
| |
| // Construct a pipeline for scheduling and code generation. |
| ZonePool zone_pool; |
| PipelineData data(&zone_pool, &info, graph, schedule); |
| base::SmartPointer<PipelineStatistics> pipeline_statistics; |
| if (FLAG_turbo_stats) { |
| pipeline_statistics.Reset(new PipelineStatistics(&info, &zone_pool)); |
| pipeline_statistics->BeginPhaseKind("interpreter handler codegen"); |
| } |
| if (FLAG_trace_turbo) { |
| FILE* json_file = OpenVisualizerLogFile(&info, NULL, "json", "w+"); |
| if (json_file != nullptr) { |
| OFStream json_of(json_file); |
| json_of << "{\"function\":\"" << info.GetDebugName().get() |
| << "\", \"source\":\"\",\n\"phases\":["; |
| fclose(json_file); |
| } |
| } |
| |
| Pipeline pipeline(&info); |
| pipeline.data_ = &data; |
| pipeline.RunPrintAndVerify("Machine", true); |
| return pipeline.ScheduleAndGenerateCode(call_descriptor); |
| } |
| |
| |
| Handle<Code> Pipeline::GenerateCodeForTesting(CompilationInfo* info, |
| Graph* graph, |
| Schedule* schedule) { |
| CallDescriptor* call_descriptor = |
| Linkage::ComputeIncoming(info->zone(), info); |
| return GenerateCodeForTesting(info, call_descriptor, graph, schedule); |
| } |
| |
| |
| Handle<Code> Pipeline::GenerateCodeForTesting(CompilationInfo* info, |
| CallDescriptor* call_descriptor, |
| Graph* graph, |
| Schedule* schedule) { |
| // Construct a pipeline for scheduling and code generation. |
| ZonePool zone_pool; |
| PipelineData data(&zone_pool, info, graph, schedule); |
| base::SmartPointer<PipelineStatistics> pipeline_statistics; |
| if (FLAG_turbo_stats) { |
| pipeline_statistics.Reset(new PipelineStatistics(info, &zone_pool)); |
| pipeline_statistics->BeginPhaseKind("test codegen"); |
| } |
| |
| Pipeline pipeline(info); |
| pipeline.data_ = &data; |
| if (data.schedule() == nullptr) { |
| // TODO(rossberg): Should this really be untyped? |
| pipeline.RunPrintAndVerify("Machine", true); |
| } |
| |
| return pipeline.ScheduleAndGenerateCode(call_descriptor); |
| } |
| |
| |
| bool Pipeline::AllocateRegistersForTesting(const RegisterConfiguration* config, |
| InstructionSequence* sequence, |
| bool run_verifier) { |
| CompilationInfo info("testing", sequence->isolate(), sequence->zone()); |
| ZonePool zone_pool; |
| PipelineData data(&zone_pool, &info, sequence); |
| Pipeline pipeline(&info); |
| pipeline.data_ = &data; |
| pipeline.AllocateRegisters(config, nullptr, run_verifier); |
| return !data.compilation_failed(); |
| } |
| |
| |
| Handle<Code> Pipeline::ScheduleAndGenerateCode( |
| CallDescriptor* call_descriptor) { |
| PipelineData* data = this->data_; |
| |
| DCHECK_NOT_NULL(data->graph()); |
| |
| if (data->schedule() == nullptr) Run<ComputeSchedulePhase>(); |
| TraceSchedule(data->info(), data->schedule()); |
| |
| BasicBlockProfiler::Data* profiler_data = NULL; |
| if (FLAG_turbo_profiling) { |
| profiler_data = BasicBlockInstrumentor::Instrument(info(), data->graph(), |
| data->schedule()); |
| } |
| |
| data->InitializeInstructionSequence(); |
| |
| // Select and schedule instructions covering the scheduled graph. |
| Linkage linkage(call_descriptor); |
| Run<InstructionSelectionPhase>(&linkage); |
| |
| if (FLAG_trace_turbo && !data->MayHaveUnverifiableGraph()) { |
| TurboCfgFile tcf(isolate()); |
| tcf << AsC1V("CodeGen", data->schedule(), data->source_positions(), |
| data->sequence()); |
| } |
| |
| std::ostringstream source_position_output; |
| if (FLAG_trace_turbo) { |
| // Output source position information before the graph is deleted. |
| data_->source_positions()->Print(source_position_output); |
| } |
| |
| data->DeleteGraphZone(); |
| |
| BeginPhaseKind("register allocation"); |
| |
| bool run_verifier = FLAG_turbo_verify_allocation; |
| // Allocate registers. |
| AllocateRegisters(RegisterConfiguration::ArchDefault(), call_descriptor, |
| run_verifier); |
| if (data->compilation_failed()) { |
| info()->AbortOptimization(kNotEnoughVirtualRegistersRegalloc); |
| return Handle<Code>(); |
| } |
| |
| BeginPhaseKind("code generation"); |
| |
| // Optimimize jumps. |
| if (FLAG_turbo_jt) { |
| Run<JumpThreadingPhase>(); |
| } |
| |
| // Generate final machine code. |
| Run<GenerateCodePhase>(&linkage); |
| |
| Handle<Code> code = data->code(); |
| if (profiler_data != NULL) { |
| #if ENABLE_DISASSEMBLER |
| std::ostringstream os; |
| code->Disassemble(NULL, os); |
| profiler_data->SetCode(&os); |
| #endif |
| } |
| |
| info()->SetCode(code); |
| v8::internal::CodeGenerator::PrintCode(code, info()); |
| |
| if (FLAG_trace_turbo) { |
| FILE* json_file = OpenVisualizerLogFile(info(), NULL, "json", "a+"); |
| if (json_file != nullptr) { |
| OFStream json_of(json_file); |
| json_of |
| << "{\"name\":\"disassembly\",\"type\":\"disassembly\",\"data\":\""; |
| #if ENABLE_DISASSEMBLER |
| std::stringstream disassembly_stream; |
| code->Disassemble(NULL, disassembly_stream); |
| std::string disassembly_string(disassembly_stream.str()); |
| for (const auto& c : disassembly_string) { |
| json_of << AsEscapedUC16ForJSON(c); |
| } |
| #endif // ENABLE_DISASSEMBLER |
| json_of << "\"}\n],\n"; |
| json_of << "\"nodePositions\":"; |
| json_of << source_position_output.str(); |
| json_of << "}"; |
| fclose(json_file); |
| } |
| OFStream os(stdout); |
| os << "---------------------------------------------------\n" |
| << "Finished compiling method " << info()->GetDebugName().get() |
| << " using Turbofan" << std::endl; |
| } |
| |
| return code; |
| } |
| |
| |
| void Pipeline::AllocateRegisters(const RegisterConfiguration* config, |
| CallDescriptor* descriptor, |
| bool run_verifier) { |
| PipelineData* data = this->data_; |
| |
| // Don't track usage for this zone in compiler stats. |
| base::SmartPointer<Zone> verifier_zone; |
| RegisterAllocatorVerifier* verifier = nullptr; |
| if (run_verifier) { |
| verifier_zone.Reset(new Zone()); |
| verifier = new (verifier_zone.get()) RegisterAllocatorVerifier( |
| verifier_zone.get(), config, data->sequence()); |
| } |
| |
| base::SmartArrayPointer<char> debug_name; |
| #ifdef DEBUG |
| debug_name = info()->GetDebugName(); |
| #endif |
| |
| data->InitializeRegisterAllocationData(config, descriptor, debug_name.get()); |
| if (info()->is_osr()) { |
| OsrHelper osr_helper(info()); |
| osr_helper.SetupFrame(data->frame()); |
| } |
| |
| Run<MeetRegisterConstraintsPhase>(); |
| Run<ResolvePhisPhase>(); |
| Run<BuildLiveRangesPhase>(); |
| if (FLAG_trace_turbo_graph) { |
| OFStream os(stdout); |
| PrintableInstructionSequence printable = {config, data->sequence()}; |
| os << "----- Instruction sequence before register allocation -----\n" |
| << printable; |
| } |
| if (verifier != nullptr) { |
| CHECK(!data->register_allocation_data()->ExistsUseWithoutDefinition()); |
| } |
| |
| if (FLAG_turbo_preprocess_ranges) { |
| Run<SplinterLiveRangesPhase>(); |
| } |
| |
| if (FLAG_turbo_greedy_regalloc) { |
| Run<AllocateGeneralRegistersPhase<GreedyAllocator>>(); |
| Run<AllocateDoubleRegistersPhase<GreedyAllocator>>(); |
| } else { |
| Run<AllocateGeneralRegistersPhase<LinearScanAllocator>>(); |
| Run<AllocateDoubleRegistersPhase<LinearScanAllocator>>(); |
| } |
| |
| if (FLAG_turbo_preprocess_ranges) { |
| Run<MergeSplintersPhase>(); |
| } |
| |
| if (FLAG_turbo_frame_elision) { |
| Run<LocateSpillSlotsPhase>(); |
| Run<FrameElisionPhase>(); |
| } |
| |
| Run<AssignSpillSlotsPhase>(); |
| |
| Run<CommitAssignmentPhase>(); |
| Run<PopulateReferenceMapsPhase>(); |
| Run<ConnectRangesPhase>(); |
| Run<ResolveControlFlowPhase>(); |
| if (FLAG_turbo_move_optimization) { |
| Run<OptimizeMovesPhase>(); |
| } |
| |
| if (FLAG_trace_turbo_graph) { |
| OFStream os(stdout); |
| PrintableInstructionSequence printable = {config, data->sequence()}; |
| os << "----- Instruction sequence after register allocation -----\n" |
| << printable; |
| } |
| |
| if (verifier != nullptr) { |
| verifier->VerifyAssignment(); |
| verifier->VerifyGapMoves(); |
| } |
| |
| if (FLAG_trace_turbo && !data->MayHaveUnverifiableGraph()) { |
| TurboCfgFile tcf(data->isolate()); |
| tcf << AsC1VRegisterAllocationData("CodeGen", |
| data->register_allocation_data()); |
| } |
| |
| data->DeleteRegisterAllocationZone(); |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |