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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/compiler/pipeline.h" | 5 #include "src/compiler/pipeline.h" |
6 | 6 |
7 #include <fstream> // NOLINT(readability/streams) | 7 #include <fstream> // NOLINT(readability/streams) |
8 #include <memory> | 8 #include <memory> |
9 #include <sstream> | 9 #include <sstream> |
10 | 10 |
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774 data->loop_assignment(), data->source_positions()); | 774 data->loop_assignment(), data->source_positions()); |
775 succeeded = graph_builder.CreateGraph(); | 775 succeeded = graph_builder.CreateGraph(); |
776 } | 776 } |
777 | 777 |
778 if (!succeeded) { | 778 if (!succeeded) { |
779 data->set_compilation_failed(); | 779 data->set_compilation_failed(); |
780 } | 780 } |
781 } | 781 } |
782 }; | 782 }; |
783 | 783 |
| 784 namespace { |
| 785 |
| 786 Maybe<OuterContext> GetModuleContext(Handle<JSFunction> closure) { |
| 787 Context* current = closure->context(); |
| 788 size_t distance = 0; |
| 789 while (!current->IsNativeContext()) { |
| 790 if (current->IsModuleContext()) { |
| 791 return Just(OuterContext(handle(current), distance)); |
| 792 } |
| 793 current = current->previous(); |
| 794 distance++; |
| 795 } |
| 796 return Nothing<OuterContext>(); |
| 797 } |
| 798 |
| 799 Maybe<OuterContext> ChooseSpecializationContext(CompilationInfo* info) { |
| 800 if (info->is_function_context_specializing()) { |
| 801 DCHECK(info->has_context()); |
| 802 return Just(OuterContext(handle(info->context()), 0)); |
| 803 } |
| 804 return GetModuleContext(info->closure()); |
| 805 } |
| 806 |
| 807 } // anonymous namespace |
784 | 808 |
785 struct InliningPhase { | 809 struct InliningPhase { |
786 static const char* phase_name() { return "inlining"; } | 810 static const char* phase_name() { return "inlining"; } |
787 | 811 |
788 void Run(PipelineData* data, Zone* temp_zone) { | 812 void Run(PipelineData* data, Zone* temp_zone) { |
789 JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); | 813 JSGraphReducer graph_reducer(data->jsgraph(), temp_zone); |
790 DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(), | 814 DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(), |
791 data->common()); | 815 data->common()); |
792 CheckpointElimination checkpoint_elimination(&graph_reducer); | 816 CheckpointElimination checkpoint_elimination(&graph_reducer); |
793 CommonOperatorReducer common_reducer(&graph_reducer, data->graph(), | 817 CommonOperatorReducer common_reducer(&graph_reducer, data->graph(), |
794 data->common(), data->machine()); | 818 data->common(), data->machine()); |
795 JSCallReducer call_reducer(&graph_reducer, data->jsgraph(), | 819 JSCallReducer call_reducer(&graph_reducer, data->jsgraph(), |
796 data->native_context(), | 820 data->native_context(), |
797 data->info()->dependencies()); | 821 data->info()->dependencies()); |
798 JSContextSpecialization context_specialization( | 822 JSContextSpecialization context_specialization( |
799 &graph_reducer, data->jsgraph(), | 823 &graph_reducer, data->jsgraph(), |
800 data->info()->is_function_context_specializing() | 824 ChooseSpecializationContext(data->info()), |
801 ? handle(data->info()->context()) | |
802 : MaybeHandle<Context>(), | |
803 data->info()->is_function_context_specializing() | 825 data->info()->is_function_context_specializing() |
804 ? data->info()->closure() | 826 ? data->info()->closure() |
805 : MaybeHandle<JSFunction>()); | 827 : MaybeHandle<JSFunction>()); |
806 JSFrameSpecialization frame_specialization( | 828 JSFrameSpecialization frame_specialization( |
807 &graph_reducer, data->info()->osr_frame(), data->jsgraph()); | 829 &graph_reducer, data->info()->osr_frame(), data->jsgraph()); |
808 JSNativeContextSpecialization::Flags flags = | 830 JSNativeContextSpecialization::Flags flags = |
809 JSNativeContextSpecialization::kNoFlags; | 831 JSNativeContextSpecialization::kNoFlags; |
810 if (data->info()->is_accessor_inlining_enabled()) { | 832 if (data->info()->is_accessor_inlining_enabled()) { |
811 flags |= JSNativeContextSpecialization::kAccessorInliningEnabled; | 833 flags |= JSNativeContextSpecialization::kAccessorInliningEnabled; |
812 } | 834 } |
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2027 data->DeleteRegisterAllocationZone(); | 2049 data->DeleteRegisterAllocationZone(); |
2028 } | 2050 } |
2029 | 2051 |
2030 CompilationInfo* PipelineImpl::info() const { return data_->info(); } | 2052 CompilationInfo* PipelineImpl::info() const { return data_->info(); } |
2031 | 2053 |
2032 Isolate* PipelineImpl::isolate() const { return info()->isolate(); } | 2054 Isolate* PipelineImpl::isolate() const { return info()->isolate(); } |
2033 | 2055 |
2034 } // namespace compiler | 2056 } // namespace compiler |
2035 } // namespace internal | 2057 } // namespace internal |
2036 } // namespace v8 | 2058 } // namespace v8 |
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