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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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| 82 info_(info), | 82 info_(info), |
| 83 scope_(info->scope()), | 83 scope_(info->scope()), |
| 84 nesting_stack_(NULL), | 84 nesting_stack_(NULL), |
| 85 loop_depth_(0), | 85 loop_depth_(0), |
| 86 global_count_(0), | 86 global_count_(0), |
| 87 context_(NULL), | 87 context_(NULL), |
| 88 bailout_entries_(info->HasDeoptimizationSupport() | 88 bailout_entries_(info->HasDeoptimizationSupport() |
| 89 ? info->function()->ast_node_count() : 0), | 89 ? info->function()->ast_node_count() : 0), |
| 90 stack_checks_(2), // There's always at least one. | 90 stack_checks_(2), // There's always at least one. |
| 91 type_feedback_cells_(info->HasDeoptimizationSupport() | 91 type_feedback_cells_(info->HasDeoptimizationSupport() |
| 92 ? info->function()->ast_node_count() : 0) { } | 92 ? info->function()->ast_node_count() : 0), |
| 93 ic_total_count_(0) { } |
| 93 | 94 |
| 94 static bool MakeCode(CompilationInfo* info); | 95 static bool MakeCode(CompilationInfo* info); |
| 95 | 96 |
| 96 void Generate(); | |
| 97 void PopulateDeoptimizationData(Handle<Code> code); | |
| 98 void PopulateTypeFeedbackCells(Handle<Code> code); | |
| 99 | |
| 100 Handle<FixedArray> handler_table() { return handler_table_; } | |
| 101 | |
| 102 // Encode state and pc-offset as a BitField<type, start, size>. | 97 // Encode state and pc-offset as a BitField<type, start, size>. |
| 103 // Only use 30 bits because we encode the result as a smi. | 98 // Only use 30 bits because we encode the result as a smi. |
| 104 class StateField : public BitField<State, 0, 1> { }; | 99 class StateField : public BitField<State, 0, 1> { }; |
| 105 class PcField : public BitField<unsigned, 1, 30-1> { }; | 100 class PcField : public BitField<unsigned, 1, 30-1> { }; |
| 106 | 101 |
| 107 static const char* State2String(State state) { | 102 static const char* State2String(State state) { |
| 108 switch (state) { | 103 switch (state) { |
| 109 case NO_REGISTERS: return "NO_REGISTERS"; | 104 case NO_REGISTERS: return "NO_REGISTERS"; |
| 110 case TOS_REG: return "TOS_REG"; | 105 case TOS_REG: return "TOS_REG"; |
| 111 } | 106 } |
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| 509 | 504 |
| 510 // Complete a named property assignment. The receiver is expected on top | 505 // Complete a named property assignment. The receiver is expected on top |
| 511 // of the stack and the right-hand-side value in the accumulator. | 506 // of the stack and the right-hand-side value in the accumulator. |
| 512 void EmitNamedPropertyAssignment(Assignment* expr); | 507 void EmitNamedPropertyAssignment(Assignment* expr); |
| 513 | 508 |
| 514 // Complete a keyed property assignment. The receiver and key are | 509 // Complete a keyed property assignment. The receiver and key are |
| 515 // expected on top of the stack and the right-hand-side value in the | 510 // expected on top of the stack and the right-hand-side value in the |
| 516 // accumulator. | 511 // accumulator. |
| 517 void EmitKeyedPropertyAssignment(Assignment* expr); | 512 void EmitKeyedPropertyAssignment(Assignment* expr); |
| 518 | 513 |
| 514 void CallIC(Handle<Code> code, |
| 515 RelocInfo::Mode rmode = RelocInfo::CODE_TARGET, |
| 516 unsigned ast_id = kNoASTId); |
| 517 |
| 519 void SetFunctionPosition(FunctionLiteral* fun); | 518 void SetFunctionPosition(FunctionLiteral* fun); |
| 520 void SetReturnPosition(FunctionLiteral* fun); | 519 void SetReturnPosition(FunctionLiteral* fun); |
| 521 void SetStatementPosition(Statement* stmt); | 520 void SetStatementPosition(Statement* stmt); |
| 522 void SetExpressionPosition(Expression* expr, int pos); | 521 void SetExpressionPosition(Expression* expr, int pos); |
| 523 void SetStatementPosition(int pos); | 522 void SetStatementPosition(int pos); |
| 524 void SetSourcePosition(int pos); | 523 void SetSourcePosition(int pos); |
| 525 | 524 |
| 526 // Non-local control flow support. | 525 // Non-local control flow support. |
| 527 void EnterFinallyBlock(); | 526 void EnterFinallyBlock(); |
| 528 void ExitFinallyBlock(); | 527 void ExitFinallyBlock(); |
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| 574 #undef DECLARE_VISIT | 573 #undef DECLARE_VISIT |
| 575 | 574 |
| 576 void EmitUnaryOperation(UnaryOperation* expr, const char* comment); | 575 void EmitUnaryOperation(UnaryOperation* expr, const char* comment); |
| 577 | 576 |
| 578 void VisitComma(BinaryOperation* expr); | 577 void VisitComma(BinaryOperation* expr); |
| 579 void VisitLogicalExpression(BinaryOperation* expr); | 578 void VisitLogicalExpression(BinaryOperation* expr); |
| 580 void VisitArithmeticExpression(BinaryOperation* expr); | 579 void VisitArithmeticExpression(BinaryOperation* expr); |
| 581 | 580 |
| 582 void VisitForTypeofValue(Expression* expr); | 581 void VisitForTypeofValue(Expression* expr); |
| 583 | 582 |
| 583 void Generate(); |
| 584 void PopulateDeoptimizationData(Handle<Code> code); |
| 585 void PopulateTypeFeedbackInfo(Handle<Code> code); |
| 586 void PopulateTypeFeedbackCells(Handle<Code> code); |
| 587 |
| 588 Handle<FixedArray> handler_table() { return handler_table_; } |
| 589 |
| 584 struct BailoutEntry { | 590 struct BailoutEntry { |
| 585 unsigned id; | 591 unsigned id; |
| 586 unsigned pc_and_state; | 592 unsigned pc_and_state; |
| 587 }; | 593 }; |
| 588 | 594 |
| 589 struct TypeFeedbackCellEntry { | 595 struct TypeFeedbackCellEntry { |
| 590 unsigned ast_id; | 596 unsigned ast_id; |
| 591 Handle<JSGlobalPropertyCell> cell; | 597 Handle<JSGlobalPropertyCell> cell; |
| 592 }; | 598 }; |
| 593 | 599 |
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| 772 CompilationInfo* info_; | 778 CompilationInfo* info_; |
| 773 Scope* scope_; | 779 Scope* scope_; |
| 774 Label return_label_; | 780 Label return_label_; |
| 775 NestedStatement* nesting_stack_; | 781 NestedStatement* nesting_stack_; |
| 776 int loop_depth_; | 782 int loop_depth_; |
| 777 int global_count_; | 783 int global_count_; |
| 778 const ExpressionContext* context_; | 784 const ExpressionContext* context_; |
| 779 ZoneList<BailoutEntry> bailout_entries_; | 785 ZoneList<BailoutEntry> bailout_entries_; |
| 780 ZoneList<BailoutEntry> stack_checks_; | 786 ZoneList<BailoutEntry> stack_checks_; |
| 781 ZoneList<TypeFeedbackCellEntry> type_feedback_cells_; | 787 ZoneList<TypeFeedbackCellEntry> type_feedback_cells_; |
| 788 int ic_total_count_; |
| 782 Handle<FixedArray> handler_table_; | 789 Handle<FixedArray> handler_table_; |
| 783 Handle<JSGlobalPropertyCell> profiling_counter_; | 790 Handle<JSGlobalPropertyCell> profiling_counter_; |
| 784 | 791 |
| 785 friend class NestedStatement; | 792 friend class NestedStatement; |
| 786 | 793 |
| 787 DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator); | 794 DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator); |
| 788 }; | 795 }; |
| 789 | 796 |
| 790 | 797 |
| 791 } } // namespace v8::internal | 798 } } // namespace v8::internal |
| 792 | 799 |
| 793 #endif // V8_FULL_CODEGEN_H_ | 800 #endif // V8_FULL_CODEGEN_H_ |
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