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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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/code-generator.h" | 5 #include "src/compiler/code-generator.h" |
6 | 6 |
7 #include "src/address-map.h" | 7 #include "src/address-map.h" |
8 #include "src/base/adapters.h" | 8 #include "src/base/adapters.h" |
9 #include "src/compilation-info.h" | 9 #include "src/compilation-info.h" |
10 #include "src/compiler/code-generator-impl.h" | 10 #include "src/compiler/code-generator-impl.h" |
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26 Label** targets() const { return targets_; } | 26 Label** targets() const { return targets_; } |
27 size_t target_count() const { return target_count_; } | 27 size_t target_count() const { return target_count_; } |
28 | 28 |
29 private: | 29 private: |
30 Label label_; | 30 Label label_; |
31 JumpTable* const next_; | 31 JumpTable* const next_; |
32 Label** const targets_; | 32 Label** const targets_; |
33 size_t const target_count_; | 33 size_t const target_count_; |
34 }; | 34 }; |
35 | 35 |
36 CodeGenerator::CodeGenerator( | 36 CodeGenerator::CodeGenerator(Frame* frame, Linkage* linkage, |
37 Frame* frame, Linkage* linkage, InstructionSequence* code, | 37 InstructionSequence* code, CompilationInfo* info) |
38 CompilationInfo* info, | |
39 ZoneVector<trap_handler::ProtectedInstructionData>* protected_instructions) | |
40 : frame_access_state_(nullptr), | 38 : frame_access_state_(nullptr), |
41 linkage_(linkage), | 39 linkage_(linkage), |
42 code_(code), | 40 code_(code), |
43 unwinding_info_writer_(zone()), | 41 unwinding_info_writer_(zone()), |
44 info_(info), | 42 info_(info), |
45 labels_(zone()->NewArray<Label>(code->InstructionBlockCount())), | 43 labels_(zone()->NewArray<Label>(code->InstructionBlockCount())), |
46 current_block_(RpoNumber::Invalid()), | 44 current_block_(RpoNumber::Invalid()), |
47 current_source_position_(SourcePosition::Unknown()), | 45 current_source_position_(SourcePosition::Unknown()), |
48 masm_(info->isolate(), nullptr, 0, CodeObjectRequired::kNo), | 46 masm_(info->isolate(), nullptr, 0, CodeObjectRequired::kNo), |
49 resolver_(this), | 47 resolver_(this), |
50 safepoints_(code->zone()), | 48 safepoints_(code->zone()), |
51 handlers_(code->zone()), | 49 handlers_(code->zone()), |
52 deoptimization_exits_(code->zone()), | 50 deoptimization_exits_(code->zone()), |
53 deoptimization_states_(code->zone()), | 51 deoptimization_states_(code->zone()), |
54 deoptimization_literals_(code->zone()), | 52 deoptimization_literals_(code->zone()), |
55 inlined_function_count_(0), | 53 inlined_function_count_(0), |
56 translations_(code->zone()), | 54 translations_(code->zone()), |
57 last_lazy_deopt_pc_(0), | 55 last_lazy_deopt_pc_(0), |
58 jump_tables_(nullptr), | 56 jump_tables_(nullptr), |
59 ools_(nullptr), | 57 ools_(nullptr), |
60 osr_pc_offset_(-1), | 58 osr_pc_offset_(-1), |
61 optimized_out_literal_id_(-1), | 59 optimized_out_literal_id_(-1), |
62 source_position_table_builder_(code->zone(), | 60 source_position_table_builder_(code->zone(), |
63 info->SourcePositionRecordingMode()), | 61 info->SourcePositionRecordingMode()) { |
64 protected_instructions_(protected_instructions) { | |
65 for (int i = 0; i < code->InstructionBlockCount(); ++i) { | 62 for (int i = 0; i < code->InstructionBlockCount(); ++i) { |
66 new (&labels_[i]) Label; | 63 new (&labels_[i]) Label; |
67 } | 64 } |
68 CreateFrameAccessState(frame); | 65 CreateFrameAccessState(frame); |
69 } | 66 } |
70 | 67 |
71 Isolate* CodeGenerator::isolate() const { return info_->isolate(); } | 68 Isolate* CodeGenerator::isolate() const { return info_->isolate(); } |
72 | 69 |
73 void CodeGenerator::CreateFrameAccessState(Frame* frame) { | 70 void CodeGenerator::CreateFrameAccessState(Frame* frame) { |
74 FinishFrame(frame); | 71 FinishFrame(frame); |
75 frame_access_state_ = new (code()->zone()) FrameAccessState(frame); | 72 frame_access_state_ = new (code()->zone()) FrameAccessState(frame); |
76 } | 73 } |
77 | 74 |
78 void CodeGenerator::AddProtectedInstruction(int instr_offset, | |
79 int landing_offset) { | |
80 if (protected_instructions_ != nullptr) { | |
81 trap_handler::ProtectedInstructionData data = {instr_offset, | |
82 landing_offset}; | |
83 protected_instructions_->emplace_back(data); | |
84 } | |
85 } | |
86 | 75 |
87 Handle<Code> CodeGenerator::GenerateCode() { | 76 Handle<Code> CodeGenerator::GenerateCode() { |
88 CompilationInfo* info = this->info(); | 77 CompilationInfo* info = this->info(); |
89 | 78 |
90 // Open a frame scope to indicate that there is a frame on the stack. The | 79 // Open a frame scope to indicate that there is a frame on the stack. The |
91 // MANUAL indicates that the scope shouldn't actually generate code to set up | 80 // MANUAL indicates that the scope shouldn't actually generate code to set up |
92 // the frame (that is done in AssemblePrologue). | 81 // the frame (that is done in AssemblePrologue). |
93 FrameScope frame_scope(masm(), StackFrame::MANUAL); | 82 FrameScope frame_scope(masm(), StackFrame::MANUAL); |
94 | 83 |
95 if (info->is_source_positions_enabled()) { | 84 if (info->is_source_positions_enabled()) { |
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996 : frame_(gen->frame()), masm_(gen->masm()), next_(gen->ools_) { | 985 : frame_(gen->frame()), masm_(gen->masm()), next_(gen->ools_) { |
997 gen->ools_ = this; | 986 gen->ools_ = this; |
998 } | 987 } |
999 | 988 |
1000 | 989 |
1001 OutOfLineCode::~OutOfLineCode() {} | 990 OutOfLineCode::~OutOfLineCode() {} |
1002 | 991 |
1003 } // namespace compiler | 992 } // namespace compiler |
1004 } // namespace internal | 993 } // namespace internal |
1005 } // namespace v8 | 994 } // namespace v8 |
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