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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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537 } | 537 } |
538 } | 538 } |
539 Translation translation(&translations_, frame_count, jsframe_count, | 539 Translation translation(&translations_, frame_count, jsframe_count, |
540 zone()); | 540 zone()); |
541 WriteTranslation(environment, &translation); | 541 WriteTranslation(environment, &translation); |
542 int deoptimization_index = deoptimizations_.length(); | 542 int deoptimization_index = deoptimizations_.length(); |
543 int pc_offset = masm()->pc_offset(); | 543 int pc_offset = masm()->pc_offset(); |
544 environment->Register(deoptimization_index, | 544 environment->Register(deoptimization_index, |
545 translation.index(), | 545 translation.index(), |
546 (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); | 546 (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); |
547 deoptimizations_.Add(environment); | 547 deoptimizations_.Add(environment, zone()); |
548 } | 548 } |
549 } | 549 } |
550 | 550 |
551 | 551 |
552 void LCodeGen::DeoptimizeIf(Condition cc, LEnvironment* environment) { | 552 void LCodeGen::DeoptimizeIf(Condition cc, LEnvironment* environment) { |
553 RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); | 553 RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
554 ASSERT(environment->HasBeenRegistered()); | 554 ASSERT(environment->HasBeenRegistered()); |
555 int id = environment->deoptimization_index(); | 555 int id = environment->deoptimization_index(); |
556 Address entry = Deoptimizer::GetDeoptimizationEntry(id, Deoptimizer::EAGER); | 556 Address entry = Deoptimizer::GetDeoptimizationEntry(id, Deoptimizer::EAGER); |
557 if (entry == NULL) { | 557 if (entry == NULL) { |
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632 } | 632 } |
633 code->set_deoptimization_data(*data); | 633 code->set_deoptimization_data(*data); |
634 } | 634 } |
635 | 635 |
636 | 636 |
637 int LCodeGen::DefineDeoptimizationLiteral(Handle<Object> literal) { | 637 int LCodeGen::DefineDeoptimizationLiteral(Handle<Object> literal) { |
638 int result = deoptimization_literals_.length(); | 638 int result = deoptimization_literals_.length(); |
639 for (int i = 0; i < deoptimization_literals_.length(); ++i) { | 639 for (int i = 0; i < deoptimization_literals_.length(); ++i) { |
640 if (deoptimization_literals_[i].is_identical_to(literal)) return i; | 640 if (deoptimization_literals_[i].is_identical_to(literal)) return i; |
641 } | 641 } |
642 deoptimization_literals_.Add(literal); | 642 deoptimization_literals_.Add(literal, zone()); |
643 return result; | 643 return result; |
644 } | 644 } |
645 | 645 |
646 | 646 |
647 void LCodeGen::PopulateDeoptimizationLiteralsWithInlinedFunctions() { | 647 void LCodeGen::PopulateDeoptimizationLiteralsWithInlinedFunctions() { |
648 ASSERT(deoptimization_literals_.length() == 0); | 648 ASSERT(deoptimization_literals_.length() == 0); |
649 | 649 |
650 const ZoneList<Handle<JSFunction> >* inlined_closures = | 650 const ZoneList<Handle<JSFunction> >* inlined_closures = |
651 chunk()->inlined_closures(); | 651 chunk()->inlined_closures(); |
652 | 652 |
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679 Safepoint::DeoptMode deopt_mode) { | 679 Safepoint::DeoptMode deopt_mode) { |
680 ASSERT(kind == expected_safepoint_kind_); | 680 ASSERT(kind == expected_safepoint_kind_); |
681 const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); | 681 const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); |
682 Safepoint safepoint = | 682 Safepoint safepoint = |
683 safepoints_.DefineSafepoint(masm(), kind, arguments, deopt_mode); | 683 safepoints_.DefineSafepoint(masm(), kind, arguments, deopt_mode); |
684 for (int i = 0; i < operands->length(); i++) { | 684 for (int i = 0; i < operands->length(); i++) { |
685 LOperand* pointer = operands->at(i); | 685 LOperand* pointer = operands->at(i); |
686 if (pointer->IsStackSlot()) { | 686 if (pointer->IsStackSlot()) { |
687 safepoint.DefinePointerSlot(pointer->index(), zone()); | 687 safepoint.DefinePointerSlot(pointer->index(), zone()); |
688 } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { | 688 } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { |
689 safepoint.DefinePointerRegister(ToRegister(pointer)); | 689 safepoint.DefinePointerRegister(ToRegister(pointer), zone()); |
690 } | 690 } |
691 } | 691 } |
692 } | 692 } |
693 | 693 |
694 | 694 |
695 void LCodeGen::RecordSafepoint(LPointerMap* pointers, | 695 void LCodeGen::RecordSafepoint(LPointerMap* pointers, |
696 Safepoint::DeoptMode mode) { | 696 Safepoint::DeoptMode mode) { |
697 RecordSafepoint(pointers, Safepoint::kSimple, 0, mode); | 697 RecordSafepoint(pointers, Safepoint::kSimple, 0, mode); |
698 } | 698 } |
699 | 699 |
700 | 700 |
701 void LCodeGen::RecordSafepoint(Safepoint::DeoptMode mode) { | 701 void LCodeGen::RecordSafepoint(Safepoint::DeoptMode mode) { |
702 LPointerMap empty_pointers(RelocInfo::kNoPosition); | 702 LPointerMap empty_pointers(RelocInfo::kNoPosition, zone()); |
703 RecordSafepoint(&empty_pointers, mode); | 703 RecordSafepoint(&empty_pointers, mode); |
704 } | 704 } |
705 | 705 |
706 | 706 |
707 void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, | 707 void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, |
708 int arguments, | 708 int arguments, |
709 Safepoint::DeoptMode mode) { | 709 Safepoint::DeoptMode mode) { |
710 RecordSafepoint(pointers, Safepoint::kWithRegisters, arguments, mode); | 710 RecordSafepoint(pointers, Safepoint::kWithRegisters, arguments, mode); |
711 } | 711 } |
712 | 712 |
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1978 codegen()->DoDeferredInstanceOfKnownGlobal(instr_, &map_check_); | 1978 codegen()->DoDeferredInstanceOfKnownGlobal(instr_, &map_check_); |
1979 } | 1979 } |
1980 virtual LInstruction* instr() { return instr_; } | 1980 virtual LInstruction* instr() { return instr_; } |
1981 Label* map_check() { return &map_check_; } | 1981 Label* map_check() { return &map_check_; } |
1982 private: | 1982 private: |
1983 LInstanceOfKnownGlobal* instr_; | 1983 LInstanceOfKnownGlobal* instr_; |
1984 Label map_check_; | 1984 Label map_check_; |
1985 }; | 1985 }; |
1986 | 1986 |
1987 DeferredInstanceOfKnownGlobal* deferred; | 1987 DeferredInstanceOfKnownGlobal* deferred; |
1988 deferred = new DeferredInstanceOfKnownGlobal(this, instr); | 1988 deferred = new(zone()) DeferredInstanceOfKnownGlobal(this, instr); |
1989 | 1989 |
1990 Label done, false_result; | 1990 Label done, false_result; |
1991 Register object = ToRegister(instr->InputAt(1)); | 1991 Register object = ToRegister(instr->InputAt(1)); |
1992 Register temp = ToRegister(instr->TempAt(0)); | 1992 Register temp = ToRegister(instr->TempAt(0)); |
1993 | 1993 |
1994 // A Smi is not an instance of anything. | 1994 // A Smi is not an instance of anything. |
1995 __ JumpIfSmi(object, &false_result); | 1995 __ JumpIfSmi(object, &false_result); |
1996 | 1996 |
1997 // This is the inlined call site instanceof cache. The two occurences of the | 1997 // This is the inlined call site instanceof cache. The two occurences of the |
1998 // hole value will be patched to the last map/result pair generated by the | 1998 // hole value will be patched to the last map/result pair generated by the |
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2901 if (r.IsDouble()) { | 2901 if (r.IsDouble()) { |
2902 XMMRegister scratch = xmm0; | 2902 XMMRegister scratch = xmm0; |
2903 XMMRegister input_reg = ToDoubleRegister(instr->value()); | 2903 XMMRegister input_reg = ToDoubleRegister(instr->value()); |
2904 __ xorps(scratch, scratch); | 2904 __ xorps(scratch, scratch); |
2905 __ subsd(scratch, input_reg); | 2905 __ subsd(scratch, input_reg); |
2906 __ pand(input_reg, scratch); | 2906 __ pand(input_reg, scratch); |
2907 } else if (r.IsInteger32()) { | 2907 } else if (r.IsInteger32()) { |
2908 EmitIntegerMathAbs(instr); | 2908 EmitIntegerMathAbs(instr); |
2909 } else { // Tagged case. | 2909 } else { // Tagged case. |
2910 DeferredMathAbsTaggedHeapNumber* deferred = | 2910 DeferredMathAbsTaggedHeapNumber* deferred = |
2911 new DeferredMathAbsTaggedHeapNumber(this, instr); | 2911 new(zone()) DeferredMathAbsTaggedHeapNumber(this, instr); |
2912 Register input_reg = ToRegister(instr->value()); | 2912 Register input_reg = ToRegister(instr->value()); |
2913 // Smi check. | 2913 // Smi check. |
2914 __ JumpIfNotSmi(input_reg, deferred->entry()); | 2914 __ JumpIfNotSmi(input_reg, deferred->entry()); |
2915 EmitIntegerMathAbs(instr); | 2915 EmitIntegerMathAbs(instr); |
2916 __ bind(deferred->exit()); | 2916 __ bind(deferred->exit()); |
2917 } | 2917 } |
2918 } | 2918 } |
2919 | 2919 |
2920 | 2920 |
2921 void LCodeGen::DoMathFloor(LUnaryMathOperation* instr) { | 2921 void LCodeGen::DoMathFloor(LUnaryMathOperation* instr) { |
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3103 class DeferredDoRandom: public LDeferredCode { | 3103 class DeferredDoRandom: public LDeferredCode { |
3104 public: | 3104 public: |
3105 DeferredDoRandom(LCodeGen* codegen, LRandom* instr) | 3105 DeferredDoRandom(LCodeGen* codegen, LRandom* instr) |
3106 : LDeferredCode(codegen), instr_(instr) { } | 3106 : LDeferredCode(codegen), instr_(instr) { } |
3107 virtual void Generate() { codegen()->DoDeferredRandom(instr_); } | 3107 virtual void Generate() { codegen()->DoDeferredRandom(instr_); } |
3108 virtual LInstruction* instr() { return instr_; } | 3108 virtual LInstruction* instr() { return instr_; } |
3109 private: | 3109 private: |
3110 LRandom* instr_; | 3110 LRandom* instr_; |
3111 }; | 3111 }; |
3112 | 3112 |
3113 DeferredDoRandom* deferred = new DeferredDoRandom(this, instr); | 3113 DeferredDoRandom* deferred = new(zone()) DeferredDoRandom(this, instr); |
3114 | 3114 |
3115 // Having marked this instruction as a call we can use any | 3115 // Having marked this instruction as a call we can use any |
3116 // registers. | 3116 // registers. |
3117 ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); | 3117 ASSERT(ToDoubleRegister(instr->result()).is(xmm1)); |
3118 ASSERT(ToRegister(instr->InputAt(0)).is(eax)); | 3118 ASSERT(ToRegister(instr->InputAt(0)).is(eax)); |
3119 // Assert that the register size is indeed the size of each seed. | 3119 // Assert that the register size is indeed the size of each seed. |
3120 static const int kSeedSize = sizeof(uint32_t); | 3120 static const int kSeedSize = sizeof(uint32_t); |
3121 STATIC_ASSERT(kPointerSize == kSeedSize); | 3121 STATIC_ASSERT(kPointerSize == kSeedSize); |
3122 | 3122 |
3123 __ mov(eax, FieldOperand(eax, GlobalObject::kGlobalContextOffset)); | 3123 __ mov(eax, FieldOperand(eax, GlobalObject::kGlobalContextOffset)); |
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3619 public: | 3619 public: |
3620 DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) | 3620 DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) |
3621 : LDeferredCode(codegen), instr_(instr) { } | 3621 : LDeferredCode(codegen), instr_(instr) { } |
3622 virtual void Generate() { codegen()->DoDeferredStringCharCodeAt(instr_); } | 3622 virtual void Generate() { codegen()->DoDeferredStringCharCodeAt(instr_); } |
3623 virtual LInstruction* instr() { return instr_; } | 3623 virtual LInstruction* instr() { return instr_; } |
3624 private: | 3624 private: |
3625 LStringCharCodeAt* instr_; | 3625 LStringCharCodeAt* instr_; |
3626 }; | 3626 }; |
3627 | 3627 |
3628 DeferredStringCharCodeAt* deferred = | 3628 DeferredStringCharCodeAt* deferred = |
3629 new DeferredStringCharCodeAt(this, instr); | 3629 new(zone()) DeferredStringCharCodeAt(this, instr); |
3630 | 3630 |
3631 StringCharLoadGenerator::Generate(masm(), | 3631 StringCharLoadGenerator::Generate(masm(), |
3632 factory(), | 3632 factory(), |
3633 ToRegister(instr->string()), | 3633 ToRegister(instr->string()), |
3634 ToRegister(instr->index()), | 3634 ToRegister(instr->index()), |
3635 ToRegister(instr->result()), | 3635 ToRegister(instr->result()), |
3636 deferred->entry()); | 3636 deferred->entry()); |
3637 __ bind(deferred->exit()); | 3637 __ bind(deferred->exit()); |
3638 } | 3638 } |
3639 | 3639 |
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3675 public: | 3675 public: |
3676 DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) | 3676 DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) |
3677 : LDeferredCode(codegen), instr_(instr) { } | 3677 : LDeferredCode(codegen), instr_(instr) { } |
3678 virtual void Generate() { codegen()->DoDeferredStringCharFromCode(instr_); } | 3678 virtual void Generate() { codegen()->DoDeferredStringCharFromCode(instr_); } |
3679 virtual LInstruction* instr() { return instr_; } | 3679 virtual LInstruction* instr() { return instr_; } |
3680 private: | 3680 private: |
3681 LStringCharFromCode* instr_; | 3681 LStringCharFromCode* instr_; |
3682 }; | 3682 }; |
3683 | 3683 |
3684 DeferredStringCharFromCode* deferred = | 3684 DeferredStringCharFromCode* deferred = |
3685 new DeferredStringCharFromCode(this, instr); | 3685 new(zone()) DeferredStringCharFromCode(this, instr); |
3686 | 3686 |
3687 ASSERT(instr->hydrogen()->value()->representation().IsInteger32()); | 3687 ASSERT(instr->hydrogen()->value()->representation().IsInteger32()); |
3688 Register char_code = ToRegister(instr->char_code()); | 3688 Register char_code = ToRegister(instr->char_code()); |
3689 Register result = ToRegister(instr->result()); | 3689 Register result = ToRegister(instr->result()); |
3690 ASSERT(!char_code.is(result)); | 3690 ASSERT(!char_code.is(result)); |
3691 | 3691 |
3692 __ cmp(char_code, String::kMaxAsciiCharCode); | 3692 __ cmp(char_code, String::kMaxAsciiCharCode); |
3693 __ j(above, deferred->entry()); | 3693 __ j(above, deferred->entry()); |
3694 __ Set(result, Immediate(factory()->single_character_string_cache())); | 3694 __ Set(result, Immediate(factory()->single_character_string_cache())); |
3695 __ mov(result, FieldOperand(result, | 3695 __ mov(result, FieldOperand(result, |
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3750 virtual void Generate() { codegen()->DoDeferredNumberTagI(instr_); } | 3750 virtual void Generate() { codegen()->DoDeferredNumberTagI(instr_); } |
3751 virtual LInstruction* instr() { return instr_; } | 3751 virtual LInstruction* instr() { return instr_; } |
3752 private: | 3752 private: |
3753 LNumberTagI* instr_; | 3753 LNumberTagI* instr_; |
3754 }; | 3754 }; |
3755 | 3755 |
3756 LOperand* input = instr->InputAt(0); | 3756 LOperand* input = instr->InputAt(0); |
3757 ASSERT(input->IsRegister() && input->Equals(instr->result())); | 3757 ASSERT(input->IsRegister() && input->Equals(instr->result())); |
3758 Register reg = ToRegister(input); | 3758 Register reg = ToRegister(input); |
3759 | 3759 |
3760 DeferredNumberTagI* deferred = new DeferredNumberTagI(this, instr); | 3760 DeferredNumberTagI* deferred = new(zone()) DeferredNumberTagI(this, instr); |
3761 __ SmiTag(reg); | 3761 __ SmiTag(reg); |
3762 __ j(overflow, deferred->entry()); | 3762 __ j(overflow, deferred->entry()); |
3763 __ bind(deferred->exit()); | 3763 __ bind(deferred->exit()); |
3764 } | 3764 } |
3765 | 3765 |
3766 | 3766 |
3767 void LCodeGen::DoDeferredNumberTagI(LNumberTagI* instr) { | 3767 void LCodeGen::DoDeferredNumberTagI(LNumberTagI* instr) { |
3768 Label slow; | 3768 Label slow; |
3769 Register reg = ToRegister(instr->InputAt(0)); | 3769 Register reg = ToRegister(instr->InputAt(0)); |
3770 Register tmp = reg.is(eax) ? ecx : eax; | 3770 Register tmp = reg.is(eax) ? ecx : eax; |
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3818 virtual void Generate() { codegen()->DoDeferredNumberTagD(instr_); } | 3818 virtual void Generate() { codegen()->DoDeferredNumberTagD(instr_); } |
3819 virtual LInstruction* instr() { return instr_; } | 3819 virtual LInstruction* instr() { return instr_; } |
3820 private: | 3820 private: |
3821 LNumberTagD* instr_; | 3821 LNumberTagD* instr_; |
3822 }; | 3822 }; |
3823 | 3823 |
3824 XMMRegister input_reg = ToDoubleRegister(instr->InputAt(0)); | 3824 XMMRegister input_reg = ToDoubleRegister(instr->InputAt(0)); |
3825 Register reg = ToRegister(instr->result()); | 3825 Register reg = ToRegister(instr->result()); |
3826 Register tmp = ToRegister(instr->TempAt(0)); | 3826 Register tmp = ToRegister(instr->TempAt(0)); |
3827 | 3827 |
3828 DeferredNumberTagD* deferred = new DeferredNumberTagD(this, instr); | 3828 DeferredNumberTagD* deferred = new(zone()) DeferredNumberTagD(this, instr); |
3829 if (FLAG_inline_new) { | 3829 if (FLAG_inline_new) { |
3830 __ AllocateHeapNumber(reg, tmp, no_reg, deferred->entry()); | 3830 __ AllocateHeapNumber(reg, tmp, no_reg, deferred->entry()); |
3831 } else { | 3831 } else { |
3832 __ jmp(deferred->entry()); | 3832 __ jmp(deferred->entry()); |
3833 } | 3833 } |
3834 __ bind(deferred->exit()); | 3834 __ bind(deferred->exit()); |
3835 __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), input_reg); | 3835 __ movdbl(FieldOperand(reg, HeapNumber::kValueOffset), input_reg); |
3836 } | 3836 } |
3837 | 3837 |
3838 | 3838 |
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4018 private: | 4018 private: |
4019 LTaggedToI* instr_; | 4019 LTaggedToI* instr_; |
4020 }; | 4020 }; |
4021 | 4021 |
4022 LOperand* input = instr->InputAt(0); | 4022 LOperand* input = instr->InputAt(0); |
4023 ASSERT(input->IsRegister()); | 4023 ASSERT(input->IsRegister()); |
4024 ASSERT(input->Equals(instr->result())); | 4024 ASSERT(input->Equals(instr->result())); |
4025 | 4025 |
4026 Register input_reg = ToRegister(input); | 4026 Register input_reg = ToRegister(input); |
4027 | 4027 |
4028 DeferredTaggedToI* deferred = new DeferredTaggedToI(this, instr); | 4028 DeferredTaggedToI* deferred = new(zone()) DeferredTaggedToI(this, instr); |
4029 | 4029 |
4030 // Smi check. | 4030 // Smi check. |
4031 __ JumpIfNotSmi(input_reg, deferred->entry()); | 4031 __ JumpIfNotSmi(input_reg, deferred->entry()); |
4032 | 4032 |
4033 // Smi to int32 conversion | 4033 // Smi to int32 conversion |
4034 __ SmiUntag(input_reg); // Untag smi. | 4034 __ SmiUntag(input_reg); // Untag smi. |
4035 | 4035 |
4036 __ bind(deferred->exit()); | 4036 __ bind(deferred->exit()); |
4037 } | 4037 } |
4038 | 4038 |
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4359 class DeferredAllocateObject: public LDeferredCode { | 4359 class DeferredAllocateObject: public LDeferredCode { |
4360 public: | 4360 public: |
4361 DeferredAllocateObject(LCodeGen* codegen, LAllocateObject* instr) | 4361 DeferredAllocateObject(LCodeGen* codegen, LAllocateObject* instr) |
4362 : LDeferredCode(codegen), instr_(instr) { } | 4362 : LDeferredCode(codegen), instr_(instr) { } |
4363 virtual void Generate() { codegen()->DoDeferredAllocateObject(instr_); } | 4363 virtual void Generate() { codegen()->DoDeferredAllocateObject(instr_); } |
4364 virtual LInstruction* instr() { return instr_; } | 4364 virtual LInstruction* instr() { return instr_; } |
4365 private: | 4365 private: |
4366 LAllocateObject* instr_; | 4366 LAllocateObject* instr_; |
4367 }; | 4367 }; |
4368 | 4368 |
4369 DeferredAllocateObject* deferred = new DeferredAllocateObject(this, instr); | 4369 DeferredAllocateObject* deferred = |
| 4370 new(zone()) DeferredAllocateObject(this, instr); |
4370 | 4371 |
4371 Register result = ToRegister(instr->result()); | 4372 Register result = ToRegister(instr->result()); |
4372 Register scratch = ToRegister(instr->TempAt(0)); | 4373 Register scratch = ToRegister(instr->TempAt(0)); |
4373 Handle<JSFunction> constructor = instr->hydrogen()->constructor(); | 4374 Handle<JSFunction> constructor = instr->hydrogen()->constructor(); |
4374 Handle<Map> initial_map(constructor->initial_map()); | 4375 Handle<Map> initial_map(constructor->initial_map()); |
4375 int instance_size = initial_map->instance_size(); | 4376 int instance_size = initial_map->instance_size(); |
4376 ASSERT(initial_map->pre_allocated_property_fields() + | 4377 ASSERT(initial_map->pre_allocated_property_fields() + |
4377 initial_map->unused_property_fields() - | 4378 initial_map->unused_property_fields() - |
4378 initial_map->inobject_properties() == 0); | 4379 initial_map->inobject_properties() == 0); |
4379 | 4380 |
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4974 StackCheckStub stub; | 4975 StackCheckStub stub; |
4975 CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); | 4976 CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
4976 EnsureSpaceForLazyDeopt(); | 4977 EnsureSpaceForLazyDeopt(); |
4977 __ bind(&done); | 4978 __ bind(&done); |
4978 RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); | 4979 RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
4979 safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); | 4980 safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
4980 } else { | 4981 } else { |
4981 ASSERT(instr->hydrogen()->is_backwards_branch()); | 4982 ASSERT(instr->hydrogen()->is_backwards_branch()); |
4982 // Perform stack overflow check if this goto needs it before jumping. | 4983 // Perform stack overflow check if this goto needs it before jumping. |
4983 DeferredStackCheck* deferred_stack_check = | 4984 DeferredStackCheck* deferred_stack_check = |
4984 new DeferredStackCheck(this, instr); | 4985 new(zone()) DeferredStackCheck(this, instr); |
4985 ExternalReference stack_limit = | 4986 ExternalReference stack_limit = |
4986 ExternalReference::address_of_stack_limit(isolate()); | 4987 ExternalReference::address_of_stack_limit(isolate()); |
4987 __ cmp(esp, Operand::StaticVariable(stack_limit)); | 4988 __ cmp(esp, Operand::StaticVariable(stack_limit)); |
4988 __ j(below, deferred_stack_check->entry()); | 4989 __ j(below, deferred_stack_check->entry()); |
4989 EnsureSpaceForLazyDeopt(); | 4990 EnsureSpaceForLazyDeopt(); |
4990 __ bind(instr->done_label()); | 4991 __ bind(instr->done_label()); |
4991 deferred_stack_check->SetExit(instr->done_label()); | 4992 deferred_stack_check->SetExit(instr->done_label()); |
4992 RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); | 4993 RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
4993 // Don't record a deoptimization index for the safepoint here. | 4994 // Don't record a deoptimization index for the safepoint here. |
4994 // This will be done explicitly when emitting call and the safepoint in | 4995 // This will be done explicitly when emitting call and the safepoint in |
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5104 FixedArray::kHeaderSize - kPointerSize)); | 5105 FixedArray::kHeaderSize - kPointerSize)); |
5105 __ bind(&done); | 5106 __ bind(&done); |
5106 } | 5107 } |
5107 | 5108 |
5108 | 5109 |
5109 #undef __ | 5110 #undef __ |
5110 | 5111 |
5111 } } // namespace v8::internal | 5112 } } // namespace v8::internal |
5112 | 5113 |
5113 #endif // V8_TARGET_ARCH_IA32 | 5114 #endif // V8_TARGET_ARCH_IA32 |
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