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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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