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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 #ifndef V8_COMPILER_CODE_GENERATOR_H_ | 5 #ifndef V8_COMPILER_CODE_GENERATOR_H_ |
6 #define V8_COMPILER_CODE_GENERATOR_H_ | 6 #define V8_COMPILER_CODE_GENERATOR_H_ |
7 | 7 |
8 #include "src/compiler/gap-resolver.h" | 8 #include "src/compiler/gap-resolver.h" |
9 #include "src/compiler/instruction.h" | 9 #include "src/compiler/instruction.h" |
10 #include "src/deoptimizer.h" | 10 #include "src/deoptimizer.h" |
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47 class CodeGenerator final : public GapResolver::Assembler { | 47 class CodeGenerator final : public GapResolver::Assembler { |
48 public: | 48 public: |
49 explicit CodeGenerator(Frame* frame, Linkage* linkage, | 49 explicit CodeGenerator(Frame* frame, Linkage* linkage, |
50 InstructionSequence* code, CompilationInfo* info); | 50 InstructionSequence* code, CompilationInfo* info); |
51 | 51 |
52 // Generate native code. | 52 // Generate native code. |
53 Handle<Code> GenerateCode(); | 53 Handle<Code> GenerateCode(); |
54 | 54 |
55 InstructionSequence* code() const { return code_; } | 55 InstructionSequence* code() const { return code_; } |
56 FrameAccessState* frame_access_state() const { return frame_access_state_; } | 56 FrameAccessState* frame_access_state() const { return frame_access_state_; } |
57 Frame* frame() const { return frame_access_state_->frame(); } | 57 const Frame* frame() const { return frame_access_state_->frame(); } |
58 Isolate* isolate() const { return info_->isolate(); } | 58 Isolate* isolate() const { return info_->isolate(); } |
59 Linkage* linkage() const { return linkage_; } | 59 Linkage* linkage() const { return linkage_; } |
60 | 60 |
61 Label* GetLabel(RpoNumber rpo) { return &labels_[rpo.ToSize()]; } | 61 Label* GetLabel(RpoNumber rpo) { return &labels_[rpo.ToSize()]; } |
62 | 62 |
63 private: | 63 private: |
64 MacroAssembler* masm() { return &masm_; } | 64 MacroAssembler* masm() { return &masm_; } |
65 GapResolver* resolver() { return &resolver_; } | 65 GapResolver* resolver() { return &resolver_; } |
66 SafepointTableBuilder* safepoints() { return &safepoints_; } | 66 SafepointTableBuilder* safepoints() { return &safepoints_; } |
67 Zone* zone() const { return code()->zone(); } | 67 Zone* zone() const { return code()->zone(); } |
68 CompilationInfo* info() const { return info_; } | 68 CompilationInfo* info() const { return info_; } |
69 | 69 |
| 70 // Create the FrameAccessState object. The Frame is immutable from here on. |
| 71 void CreateFrameAccessState(Frame* frame); |
| 72 |
| 73 // Architecture - specific frame finalization. |
| 74 void FinishFrame(Frame* frame); |
| 75 |
70 // Checks if {block} will appear directly after {current_block_} when | 76 // Checks if {block} will appear directly after {current_block_} when |
71 // assembling code, in which case, a fall-through can be used. | 77 // assembling code, in which case, a fall-through can be used. |
72 bool IsNextInAssemblyOrder(RpoNumber block) const; | 78 bool IsNextInAssemblyOrder(RpoNumber block) const; |
73 | 79 |
74 // Record a safepoint with the given pointer map. | 80 // Record a safepoint with the given pointer map. |
75 void RecordSafepoint(ReferenceMap* references, Safepoint::Kind kind, | 81 void RecordSafepoint(ReferenceMap* references, Safepoint::Kind kind, |
76 int arguments, Safepoint::DeoptMode deopt_mode); | 82 int arguments, Safepoint::DeoptMode deopt_mode); |
77 | 83 |
78 // Check if a heap object can be materialized by loading from the frame, which | 84 // Check if a heap object can be materialized by loading from the frame, which |
79 // is usually way cheaper than materializing the actual heap object constant. | 85 // is usually way cheaper than materializing the actual heap object constant. |
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101 void AssembleArchBranch(Instruction* instr, BranchInfo* branch); | 107 void AssembleArchBranch(Instruction* instr, BranchInfo* branch); |
102 void AssembleArchBoolean(Instruction* instr, FlagsCondition condition); | 108 void AssembleArchBoolean(Instruction* instr, FlagsCondition condition); |
103 void AssembleArchLookupSwitch(Instruction* instr); | 109 void AssembleArchLookupSwitch(Instruction* instr); |
104 void AssembleArchTableSwitch(Instruction* instr); | 110 void AssembleArchTableSwitch(Instruction* instr); |
105 | 111 |
106 void AssembleDeoptimizerCall(int deoptimization_id, | 112 void AssembleDeoptimizerCall(int deoptimization_id, |
107 Deoptimizer::BailoutType bailout_type); | 113 Deoptimizer::BailoutType bailout_type); |
108 | 114 |
109 // Generates an architecture-specific, descriptor-specific prologue | 115 // Generates an architecture-specific, descriptor-specific prologue |
110 // to set up a stack frame. | 116 // to set up a stack frame. |
111 void AssemblePrologue(); | 117 void AssembleConstructFrame(); |
112 | |
113 void AssembleSetupStackPointer(); | |
114 | 118 |
115 // Generates an architecture-specific, descriptor-specific return sequence | 119 // Generates an architecture-specific, descriptor-specific return sequence |
116 // to tear down a stack frame. | 120 // to tear down a stack frame. |
117 void AssembleReturn(); | 121 void AssembleReturn(); |
118 | 122 |
119 // Generates code to deconstruct a the caller's frame, including arguments. | 123 // Generates code to deconstruct a the caller's frame, including arguments. |
120 void AssembleDeconstructActivationRecord(int stack_param_delta); | 124 void AssembleDeconstructActivationRecord(int stack_param_delta); |
121 | 125 |
122 void AssembleDeconstructFrame(); | 126 void AssembleDeconstructFrame(); |
123 | 127 |
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235 JumpTable* jump_tables_; | 239 JumpTable* jump_tables_; |
236 OutOfLineCode* ools_; | 240 OutOfLineCode* ools_; |
237 int osr_pc_offset_; | 241 int osr_pc_offset_; |
238 }; | 242 }; |
239 | 243 |
240 } // namespace compiler | 244 } // namespace compiler |
241 } // namespace internal | 245 } // namespace internal |
242 } // namespace v8 | 246 } // namespace v8 |
243 | 247 |
244 #endif // V8_COMPILER_CODE_GENERATOR_H | 248 #endif // V8_COMPILER_CODE_GENERATOR_H |
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