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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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36 #include "scopes.h" | 36 #include "scopes.h" |
37 #include "v8utils.h" | 37 #include "v8utils.h" |
38 | 38 |
39 namespace v8 { | 39 namespace v8 { |
40 namespace internal { | 40 namespace internal { |
41 | 41 |
42 // Forward declarations. | 42 // Forward declarations. |
43 class LDeferredCode; | 43 class LDeferredCode; |
44 class SafepointGenerator; | 44 class SafepointGenerator; |
45 | 45 |
46 class LCodeGen BASE_EMBEDDED { | 46 class LCodeGen V8_FINAL BASE_EMBEDDED { |
47 public: | 47 public: |
48 LCodeGen(LChunk* chunk, MacroAssembler* assembler, CompilationInfo* info) | 48 LCodeGen(LChunk* chunk, MacroAssembler* assembler, CompilationInfo* info) |
49 : zone_(info->zone()), | 49 : zone_(info->zone()), |
50 chunk_(static_cast<LPlatformChunk*>(chunk)), | 50 chunk_(static_cast<LPlatformChunk*>(chunk)), |
51 masm_(assembler), | 51 masm_(assembler), |
52 info_(info), | 52 info_(info), |
53 current_block_(-1), | 53 current_block_(-1), |
54 current_instruction_(-1), | 54 current_instruction_(-1), |
55 instructions_(chunk->instructions()), | 55 instructions_(chunk->instructions()), |
56 deoptimizations_(4, info->zone()), | 56 deoptimizations_(4, info->zone()), |
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413 // itself is emitted at the end of the generated code. | 413 // itself is emitted at the end of the generated code. |
414 SafepointTableBuilder safepoints_; | 414 SafepointTableBuilder safepoints_; |
415 | 415 |
416 // Compiler from a set of parallel moves to a sequential list of moves. | 416 // Compiler from a set of parallel moves to a sequential list of moves. |
417 LGapResolver resolver_; | 417 LGapResolver resolver_; |
418 | 418 |
419 Safepoint::Kind expected_safepoint_kind_; | 419 Safepoint::Kind expected_safepoint_kind_; |
420 | 420 |
421 int old_position_; | 421 int old_position_; |
422 | 422 |
423 class PushSafepointRegistersScope BASE_EMBEDDED { | 423 class PushSafepointRegistersScope V8_FINAL BASE_EMBEDDED { |
424 public: | 424 public: |
425 PushSafepointRegistersScope(LCodeGen* codegen, | 425 PushSafepointRegistersScope(LCodeGen* codegen, |
426 Safepoint::Kind kind) | 426 Safepoint::Kind kind) |
427 : codegen_(codegen) { | 427 : codegen_(codegen) { |
428 ASSERT(codegen_->info()->is_calling()); | 428 ASSERT(codegen_->info()->is_calling()); |
429 ASSERT(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | 429 ASSERT(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); |
430 codegen_->expected_safepoint_kind_ = kind; | 430 codegen_->expected_safepoint_kind_ = kind; |
431 | 431 |
432 switch (codegen_->expected_safepoint_kind_) { | 432 switch (codegen_->expected_safepoint_kind_) { |
433 case Safepoint::kWithRegisters: | 433 case Safepoint::kWithRegisters: |
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461 LCodeGen* codegen_; | 461 LCodeGen* codegen_; |
462 }; | 462 }; |
463 | 463 |
464 friend class LDeferredCode; | 464 friend class LDeferredCode; |
465 friend class LEnvironment; | 465 friend class LEnvironment; |
466 friend class SafepointGenerator; | 466 friend class SafepointGenerator; |
467 DISALLOW_COPY_AND_ASSIGN(LCodeGen); | 467 DISALLOW_COPY_AND_ASSIGN(LCodeGen); |
468 }; | 468 }; |
469 | 469 |
470 | 470 |
471 class LDeferredCode: public ZoneObject { | 471 class LDeferredCode : public ZoneObject { |
472 public: | 472 public: |
473 explicit LDeferredCode(LCodeGen* codegen) | 473 explicit LDeferredCode(LCodeGen* codegen) |
474 : codegen_(codegen), | 474 : codegen_(codegen), |
475 external_exit_(NULL), | 475 external_exit_(NULL), |
476 instruction_index_(codegen->current_instruction_) { | 476 instruction_index_(codegen->current_instruction_) { |
477 codegen->AddDeferredCode(this); | 477 codegen->AddDeferredCode(this); |
478 } | 478 } |
479 | 479 |
480 virtual ~LDeferredCode() { } | 480 virtual ~LDeferredCode() {} |
481 virtual void Generate() = 0; | 481 virtual void Generate() = 0; |
482 virtual LInstruction* instr() = 0; | 482 virtual LInstruction* instr() = 0; |
483 | 483 |
484 void SetExit(Label* exit) { external_exit_ = exit; } | 484 void SetExit(Label* exit) { external_exit_ = exit; } |
485 Label* entry() { return &entry_; } | 485 Label* entry() { return &entry_; } |
486 Label* exit() { return external_exit_ != NULL ? external_exit_ : &exit_; } | 486 Label* exit() { return external_exit_ != NULL ? external_exit_ : &exit_; } |
487 int instruction_index() const { return instruction_index_; } | 487 int instruction_index() const { return instruction_index_; } |
488 | 488 |
489 protected: | 489 protected: |
490 LCodeGen* codegen() const { return codegen_; } | 490 LCodeGen* codegen() const { return codegen_; } |
491 MacroAssembler* masm() const { return codegen_->masm(); } | 491 MacroAssembler* masm() const { return codegen_->masm(); } |
492 | 492 |
493 private: | 493 private: |
494 LCodeGen* codegen_; | 494 LCodeGen* codegen_; |
495 Label entry_; | 495 Label entry_; |
496 Label exit_; | 496 Label exit_; |
497 Label* external_exit_; | 497 Label* external_exit_; |
498 int instruction_index_; | 498 int instruction_index_; |
499 }; | 499 }; |
500 | 500 |
501 } } // namespace v8::internal | 501 } } // namespace v8::internal |
502 | 502 |
503 #endif // V8_ARM_LITHIUM_CODEGEN_ARM_H_ | 503 #endif // V8_ARM_LITHIUM_CODEGEN_ARM_H_ |
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