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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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62 void AssembleInstruction(Instruction* instr); | 62 void AssembleInstruction(Instruction* instr); |
63 void AssembleSourcePosition(SourcePositionInstruction* instr); | 63 void AssembleSourcePosition(SourcePositionInstruction* instr); |
64 void AssembleGap(GapInstruction* gap); | 64 void AssembleGap(GapInstruction* gap); |
65 | 65 |
66 // =========================================================================== | 66 // =========================================================================== |
67 // ============= Architecture-specific code generation methods. ============== | 67 // ============= Architecture-specific code generation methods. ============== |
68 // =========================================================================== | 68 // =========================================================================== |
69 | 69 |
70 void AssembleArchInstruction(Instruction* instr); | 70 void AssembleArchInstruction(Instruction* instr); |
71 void AssembleArchJump(BasicBlock::RpoNumber target); | 71 void AssembleArchJump(BasicBlock::RpoNumber target); |
| 72 void AssembleArchSwitch(Instruction* instr); |
72 void AssembleArchBranch(Instruction* instr, BranchInfo* branch); | 73 void AssembleArchBranch(Instruction* instr, BranchInfo* branch); |
73 void AssembleArchBoolean(Instruction* instr, FlagsCondition condition); | 74 void AssembleArchBoolean(Instruction* instr, FlagsCondition condition); |
74 | 75 |
75 void AssembleDeoptimizerCall(int deoptimization_id); | 76 void AssembleDeoptimizerCall(int deoptimization_id); |
76 | 77 |
77 // Generates an architecture-specific, descriptor-specific prologue | 78 // Generates an architecture-specific, descriptor-specific prologue |
78 // to set up a stack frame. | 79 // to set up a stack frame. |
79 void AssemblePrologue(); | 80 void AssemblePrologue(); |
80 // Generates an architecture-specific, descriptor-specific return sequence | 81 // Generates an architecture-specific, descriptor-specific return sequence |
81 // to tear down a stack frame. | 82 // to tear down a stack frame. |
82 void AssembleReturn(); | 83 void AssembleReturn(); |
83 | 84 |
84 // =========================================================================== | 85 // =========================================================================== |
85 // ============== Architecture-specific gap resolver methods. ================ | 86 // ============== Architecture-specific gap resolver methods. ================ |
86 // =========================================================================== | 87 // =========================================================================== |
87 | 88 |
88 // Interface used by the gap resolver to emit moves and swaps. | 89 // Interface used by the gap resolver to emit moves and swaps. |
89 void AssembleMove(InstructionOperand* source, | 90 void AssembleMove(InstructionOperand* source, |
90 InstructionOperand* destination) FINAL; | 91 InstructionOperand* destination) FINAL; |
91 void AssembleSwap(InstructionOperand* source, | 92 void AssembleSwap(InstructionOperand* source, |
92 InstructionOperand* destination) FINAL; | 93 InstructionOperand* destination) FINAL; |
93 | 94 |
94 // =========================================================================== | 95 // =========================================================================== |
| 96 // =================== Jump table construction methods. ====================== |
| 97 // =========================================================================== |
| 98 |
| 99 class JumpTable; |
| 100 // Adds a jump table that is emitted after the actual code. Returns label |
| 101 // pointing to the beginning of the table. {targets} is assumed to be static |
| 102 // or zone allocated. |
| 103 Label* AddJumpTable(Label** targets, size_t target_count); |
| 104 // Emits a jump table. |
| 105 void AssembleJumpTable(Label** targets, size_t target_count); |
| 106 |
| 107 // =========================================================================== |
95 // Deoptimization table construction | 108 // Deoptimization table construction |
96 void AddSafepointAndDeopt(Instruction* instr); | 109 void AddSafepointAndDeopt(Instruction* instr); |
97 void PopulateDeoptimizationData(Handle<Code> code); | 110 void PopulateDeoptimizationData(Handle<Code> code); |
98 int DefineDeoptimizationLiteral(Handle<Object> literal); | 111 int DefineDeoptimizationLiteral(Handle<Object> literal); |
99 FrameStateDescriptor* GetFrameStateDescriptor(Instruction* instr, | 112 FrameStateDescriptor* GetFrameStateDescriptor(Instruction* instr, |
100 size_t frame_state_offset); | 113 size_t frame_state_offset); |
101 int BuildTranslation(Instruction* instr, int pc_offset, | 114 int BuildTranslation(Instruction* instr, int pc_offset, |
102 size_t frame_state_offset, | 115 size_t frame_state_offset, |
103 OutputFrameStateCombine state_combine); | 116 OutputFrameStateCombine state_combine); |
104 void BuildTranslationForFrameStateDescriptor( | 117 void BuildTranslationForFrameStateDescriptor( |
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138 Label* const labels_; | 151 Label* const labels_; |
139 BasicBlock::RpoNumber current_block_; | 152 BasicBlock::RpoNumber current_block_; |
140 SourcePosition current_source_position_; | 153 SourcePosition current_source_position_; |
141 MacroAssembler masm_; | 154 MacroAssembler masm_; |
142 GapResolver resolver_; | 155 GapResolver resolver_; |
143 SafepointTableBuilder safepoints_; | 156 SafepointTableBuilder safepoints_; |
144 ZoneDeque<DeoptimizationState*> deoptimization_states_; | 157 ZoneDeque<DeoptimizationState*> deoptimization_states_; |
145 ZoneDeque<Handle<Object> > deoptimization_literals_; | 158 ZoneDeque<Handle<Object> > deoptimization_literals_; |
146 TranslationBuffer translations_; | 159 TranslationBuffer translations_; |
147 int last_lazy_deopt_pc_; | 160 int last_lazy_deopt_pc_; |
| 161 JumpTable* jump_tables_; |
148 OutOfLineCode* ools_; | 162 OutOfLineCode* ools_; |
149 int osr_pc_offset_; | 163 int osr_pc_offset_; |
150 }; | 164 }; |
151 | 165 |
152 } // namespace compiler | 166 } // namespace compiler |
153 } // namespace internal | 167 } // namespace internal |
154 } // namespace v8 | 168 } // namespace v8 |
155 | 169 |
156 #endif // V8_COMPILER_CODE_GENERATOR_H | 170 #endif // V8_COMPILER_CODE_GENERATOR_H |
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