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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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430 void EmitLiteralCompareNil(CompareOperation* expr, | 430 void EmitLiteralCompareNil(CompareOperation* expr, |
431 Expression* sub_expr, | 431 Expression* sub_expr, |
432 NilValue nil); | 432 NilValue nil); |
433 | 433 |
434 // Bailout support. | 434 // Bailout support. |
435 void PrepareForBailout(Expression* node, State state); | 435 void PrepareForBailout(Expression* node, State state); |
436 void PrepareForBailoutForId(BailoutId id, State state); | 436 void PrepareForBailoutForId(BailoutId id, State state); |
437 | 437 |
438 // Cache cell support. This associates AST ids with global property cells | 438 // Cache cell support. This associates AST ids with global property cells |
439 // that will be cleared during GC and collected by the type-feedback oracle. | 439 // that will be cleared during GC and collected by the type-feedback oracle. |
440 void RecordTypeFeedbackCell(TypeFeedbackId id, | 440 void RecordTypeFeedbackCell(TypeFeedbackId id, Handle<Cell> cell); |
441 Handle<JSGlobalPropertyCell> cell); | |
442 | 441 |
443 // Record a call's return site offset, used to rebuild the frame if the | 442 // Record a call's return site offset, used to rebuild the frame if the |
444 // called function was inlined at the site. | 443 // called function was inlined at the site. |
445 void RecordJSReturnSite(Call* call); | 444 void RecordJSReturnSite(Call* call); |
446 | 445 |
447 // Prepare for bailout before a test (or compare) and branch. If | 446 // Prepare for bailout before a test (or compare) and branch. If |
448 // should_normalize, then the following comparison will not handle the | 447 // should_normalize, then the following comparison will not handle the |
449 // canonical JS true value so we will insert a (dead) test against true at | 448 // canonical JS true value so we will insert a (dead) test against true at |
450 // the actual bailout target from the optimized code. If not | 449 // the actual bailout target from the optimized code. If not |
451 // should_normalize, the true and false labels are ignored. | 450 // should_normalize, the true and false labels are ignored. |
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641 }; | 640 }; |
642 | 641 |
643 struct BackEdgeEntry { | 642 struct BackEdgeEntry { |
644 BailoutId id; | 643 BailoutId id; |
645 unsigned pc; | 644 unsigned pc; |
646 uint8_t loop_depth; | 645 uint8_t loop_depth; |
647 }; | 646 }; |
648 | 647 |
649 struct TypeFeedbackCellEntry { | 648 struct TypeFeedbackCellEntry { |
650 TypeFeedbackId ast_id; | 649 TypeFeedbackId ast_id; |
651 Handle<JSGlobalPropertyCell> cell; | 650 Handle<Cell> cell; |
652 }; | 651 }; |
653 | 652 |
654 | 653 |
655 class ExpressionContext BASE_EMBEDDED { | 654 class ExpressionContext BASE_EMBEDDED { |
656 public: | 655 public: |
657 explicit ExpressionContext(FullCodeGenerator* codegen) | 656 explicit ExpressionContext(FullCodeGenerator* codegen) |
658 : masm_(codegen->masm()), old_(codegen->context()), codegen_(codegen) { | 657 : masm_(codegen->masm()), old_(codegen->context()), codegen_(codegen) { |
659 codegen->set_new_context(this); | 658 codegen->set_new_context(this); |
660 } | 659 } |
661 | 660 |
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837 ZoneList<Handle<Object> >* globals_; | 836 ZoneList<Handle<Object> >* globals_; |
838 Handle<FixedArray> modules_; | 837 Handle<FixedArray> modules_; |
839 int module_index_; | 838 int module_index_; |
840 const ExpressionContext* context_; | 839 const ExpressionContext* context_; |
841 ZoneList<BailoutEntry> bailout_entries_; | 840 ZoneList<BailoutEntry> bailout_entries_; |
842 GrowableBitVector prepared_bailout_ids_; | 841 GrowableBitVector prepared_bailout_ids_; |
843 ZoneList<BackEdgeEntry> back_edges_; | 842 ZoneList<BackEdgeEntry> back_edges_; |
844 ZoneList<TypeFeedbackCellEntry> type_feedback_cells_; | 843 ZoneList<TypeFeedbackCellEntry> type_feedback_cells_; |
845 int ic_total_count_; | 844 int ic_total_count_; |
846 Handle<FixedArray> handler_table_; | 845 Handle<FixedArray> handler_table_; |
847 Handle<JSGlobalPropertyCell> profiling_counter_; | 846 Handle<Cell> profiling_counter_; |
848 bool generate_debug_code_; | 847 bool generate_debug_code_; |
849 Zone* zone_; | 848 Zone* zone_; |
850 | 849 |
851 friend class NestedStatement; | 850 friend class NestedStatement; |
852 | 851 |
853 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); | 852 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); |
854 DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator); | 853 DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator); |
855 }; | 854 }; |
856 | 855 |
857 | 856 |
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873 } | 872 } |
874 | 873 |
875 private: | 874 private: |
876 Zone* zone_; | 875 Zone* zone_; |
877 }; | 876 }; |
878 | 877 |
879 | 878 |
880 } } // namespace v8::internal | 879 } } // namespace v8::internal |
881 | 880 |
882 #endif // V8_FULL_CODEGEN_H_ | 881 #endif // V8_FULL_CODEGEN_H_ |
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