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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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| 47 class LCodeGen BASE_EMBEDDED { | 47 class LCodeGen BASE_EMBEDDED { |
| 48 public: | 48 public: |
| 49 LCodeGen(LChunk* chunk, MacroAssembler* assembler, CompilationInfo* info, | 49 LCodeGen(LChunk* chunk, MacroAssembler* assembler, CompilationInfo* info, |
| 50 Zone* zone) | 50 Zone* zone) |
| 51 : chunk_(chunk), | 51 : chunk_(chunk), |
| 52 masm_(assembler), | 52 masm_(assembler), |
| 53 info_(info), | 53 info_(info), |
| 54 current_block_(-1), | 54 current_block_(-1), |
| 55 current_instruction_(-1), | 55 current_instruction_(-1), |
| 56 instructions_(chunk->instructions()), | 56 instructions_(chunk->instructions()), |
| 57 deoptimizations_(4), | 57 deoptimizations_(4, zone), |
| 58 deoptimization_literals_(8), | 58 deoptimization_literals_(8, zone), |
| 59 inlined_function_count_(0), | 59 inlined_function_count_(0), |
| 60 scope_(info->scope()), | 60 scope_(info->scope()), |
| 61 status_(UNUSED), | 61 status_(UNUSED), |
| 62 translations_(zone), | 62 translations_(zone), |
| 63 deferred_(8), | 63 deferred_(8, zone), |
| 64 osr_pc_offset_(-1), | 64 osr_pc_offset_(-1), |
| 65 last_lazy_deopt_pc_(0), | 65 last_lazy_deopt_pc_(0), |
| 66 safepoints_(zone), | 66 safepoints_(zone), |
| 67 zone_(zone), |
| 67 resolver_(this), | 68 resolver_(this), |
| 68 expected_safepoint_kind_(Safepoint::kSimple), | 69 expected_safepoint_kind_(Safepoint::kSimple) { |
| 69 zone_(zone) { | |
| 70 PopulateDeoptimizationLiteralsWithInlinedFunctions(); | 70 PopulateDeoptimizationLiteralsWithInlinedFunctions(); |
| 71 } | 71 } |
| 72 | 72 |
| 73 // Simple accessors. | 73 // Simple accessors. |
| 74 MacroAssembler* masm() const { return masm_; } | 74 MacroAssembler* masm() const { return masm_; } |
| 75 CompilationInfo* info() const { return info_; } | 75 CompilationInfo* info() const { return info_; } |
| 76 Isolate* isolate() const { return info_->isolate(); } | 76 Isolate* isolate() const { return info_->isolate(); } |
| 77 Factory* factory() const { return isolate()->factory(); } | 77 Factory* factory() const { return isolate()->factory(); } |
| 78 Heap* heap() const { return isolate()->heap(); } | 78 Heap* heap() const { return isolate()->heap(); } |
| 79 Zone* zone() const { return zone_; } | 79 Zone* zone() const { return zone_; } |
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| 162 Register input, | 162 Register input, |
| 163 Register temporary, | 163 Register temporary, |
| 164 Register temporary2); | 164 Register temporary2); |
| 165 | 165 |
| 166 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } | 166 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } |
| 167 int GetParameterCount() const { return scope()->num_parameters(); } | 167 int GetParameterCount() const { return scope()->num_parameters(); } |
| 168 | 168 |
| 169 void Abort(const char* format, ...); | 169 void Abort(const char* format, ...); |
| 170 void Comment(const char* format, ...); | 170 void Comment(const char* format, ...); |
| 171 | 171 |
| 172 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code); } | 172 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } |
| 173 | 173 |
| 174 // Code generation passes. Returns true if code generation should | 174 // Code generation passes. Returns true if code generation should |
| 175 // continue. | 175 // continue. |
| 176 bool GeneratePrologue(); | 176 bool GeneratePrologue(); |
| 177 bool GenerateBody(); | 177 bool GenerateBody(); |
| 178 bool GenerateDeferredCode(); | 178 bool GenerateDeferredCode(); |
| 179 // Pad the reloc info to ensure that we have enough space to patch during | 179 // Pad the reloc info to ensure that we have enough space to patch during |
| 180 // deoptimization. | 180 // deoptimization. |
| 181 bool GenerateRelocPadding(); | 181 bool GenerateRelocPadding(); |
| 182 bool GenerateSafepointTable(); | 182 bool GenerateSafepointTable(); |
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| 342 Status status_; | 342 Status status_; |
| 343 TranslationBuffer translations_; | 343 TranslationBuffer translations_; |
| 344 ZoneList<LDeferredCode*> deferred_; | 344 ZoneList<LDeferredCode*> deferred_; |
| 345 int osr_pc_offset_; | 345 int osr_pc_offset_; |
| 346 int last_lazy_deopt_pc_; | 346 int last_lazy_deopt_pc_; |
| 347 | 347 |
| 348 // Builder that keeps track of safepoints in the code. The table | 348 // Builder that keeps track of safepoints in the code. The table |
| 349 // itself is emitted at the end of the generated code. | 349 // itself is emitted at the end of the generated code. |
| 350 SafepointTableBuilder safepoints_; | 350 SafepointTableBuilder safepoints_; |
| 351 | 351 |
| 352 Zone* zone_; |
| 353 |
| 352 // Compiler from a set of parallel moves to a sequential list of moves. | 354 // Compiler from a set of parallel moves to a sequential list of moves. |
| 353 LGapResolver resolver_; | 355 LGapResolver resolver_; |
| 354 | 356 |
| 355 Safepoint::Kind expected_safepoint_kind_; | 357 Safepoint::Kind expected_safepoint_kind_; |
| 356 | 358 |
| 357 Zone* zone_; | |
| 358 | |
| 359 class PushSafepointRegistersScope BASE_EMBEDDED { | 359 class PushSafepointRegistersScope BASE_EMBEDDED { |
| 360 public: | 360 public: |
| 361 explicit PushSafepointRegistersScope(LCodeGen* codegen) | 361 explicit PushSafepointRegistersScope(LCodeGen* codegen) |
| 362 : codegen_(codegen) { | 362 : codegen_(codegen) { |
| 363 ASSERT(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | 363 ASSERT(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); |
| 364 codegen_->masm_->PushSafepointRegisters(); | 364 codegen_->masm_->PushSafepointRegisters(); |
| 365 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; | 365 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; |
| 366 } | 366 } |
| 367 | 367 |
| 368 ~PushSafepointRegistersScope() { | 368 ~PushSafepointRegistersScope() { |
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| 408 LCodeGen* codegen_; | 408 LCodeGen* codegen_; |
| 409 Label entry_; | 409 Label entry_; |
| 410 Label exit_; | 410 Label exit_; |
| 411 Label* external_exit_; | 411 Label* external_exit_; |
| 412 int instruction_index_; | 412 int instruction_index_; |
| 413 }; | 413 }; |
| 414 | 414 |
| 415 } } // namespace v8::internal | 415 } } // namespace v8::internal |
| 416 | 416 |
| 417 #endif // V8_IA32_LITHIUM_CODEGEN_IA32_H_ | 417 #endif // V8_IA32_LITHIUM_CODEGEN_IA32_H_ |
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