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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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168 void GenerateCode(MacroAssembler* masm); | 168 void GenerateCode(MacroAssembler* masm); |
169 | 169 |
170 // Generates the assembler code for the stub. | 170 // Generates the assembler code for the stub. |
171 virtual void Generate(MacroAssembler* masm) = 0; | 171 virtual void Generate(MacroAssembler* masm) = 0; |
172 | 172 |
173 // Perform bookkeeping required after code generation when stub code is | 173 // Perform bookkeeping required after code generation when stub code is |
174 // initially generated. | 174 // initially generated. |
175 void RecordCodeGeneration(Code* code, MacroAssembler* masm); | 175 void RecordCodeGeneration(Code* code, MacroAssembler* masm); |
176 | 176 |
177 // Finish the code object after it has been generated. | 177 // Finish the code object after it has been generated. |
178 virtual void FinishCode(Code* code) { } | 178 virtual void FinishCode(Handle<Code> code) { } |
179 | 179 |
180 // Activate newly generated stub. Is called after | 180 // Activate newly generated stub. Is called after |
181 // registering stub in the stub cache. | 181 // registering stub in the stub cache. |
182 virtual void Activate(Code* code) { } | 182 virtual void Activate(Code* code) { } |
183 | 183 |
184 // Returns information for computing the number key. | 184 // Returns information for computing the number key. |
185 virtual Major MajorKey() = 0; | 185 virtual Major MajorKey() = 0; |
186 virtual int MinorKey() = 0; | 186 virtual int MinorKey() = 0; |
187 | 187 |
188 // BinaryOpStub needs to override this. | 188 // BinaryOpStub needs to override this. |
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434 : op_(op), state_(state) { | 434 : op_(op), state_(state) { |
435 ASSERT(Token::IsCompareOp(op)); | 435 ASSERT(Token::IsCompareOp(op)); |
436 } | 436 } |
437 | 437 |
438 virtual void Generate(MacroAssembler* masm); | 438 virtual void Generate(MacroAssembler* masm); |
439 | 439 |
440 private: | 440 private: |
441 class OpField: public BitField<int, 0, 3> { }; | 441 class OpField: public BitField<int, 0, 3> { }; |
442 class StateField: public BitField<int, 3, 5> { }; | 442 class StateField: public BitField<int, 3, 5> { }; |
443 | 443 |
444 virtual void FinishCode(Code* code) { code->set_compare_state(state_); } | 444 virtual void FinishCode(Handle<Code> code) { |
| 445 code->set_compare_state(state_); |
| 446 } |
445 | 447 |
446 virtual CodeStub::Major MajorKey() { return CompareIC; } | 448 virtual CodeStub::Major MajorKey() { return CompareIC; } |
447 virtual int MinorKey(); | 449 virtual int MinorKey(); |
448 | 450 |
449 virtual int GetCodeKind() { return Code::COMPARE_IC; } | 451 virtual int GetCodeKind() { return Code::COMPARE_IC; } |
450 | 452 |
451 void GenerateSmis(MacroAssembler* masm); | 453 void GenerateSmis(MacroAssembler* masm); |
452 void GenerateHeapNumbers(MacroAssembler* masm); | 454 void GenerateHeapNumbers(MacroAssembler* masm); |
453 void GenerateSymbols(MacroAssembler* masm); | 455 void GenerateSymbols(MacroAssembler* masm); |
454 void GenerateStrings(MacroAssembler* masm); | 456 void GenerateStrings(MacroAssembler* masm); |
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537 class IncludeNumberCompareField: public BitField<bool, 2, 1> {}; | 539 class IncludeNumberCompareField: public BitField<bool, 2, 1> {}; |
538 class IncludeSmiCompareField: public BitField<bool, 3, 1> {}; | 540 class IncludeSmiCompareField: public BitField<bool, 3, 1> {}; |
539 class RegisterField: public BitField<bool, 4, 1> {}; | 541 class RegisterField: public BitField<bool, 4, 1> {}; |
540 class ConditionField: public BitField<int, 5, 11> {}; | 542 class ConditionField: public BitField<int, 5, 11> {}; |
541 | 543 |
542 Major MajorKey() { return Compare; } | 544 Major MajorKey() { return Compare; } |
543 | 545 |
544 int MinorKey(); | 546 int MinorKey(); |
545 | 547 |
546 virtual int GetCodeKind() { return Code::COMPARE_IC; } | 548 virtual int GetCodeKind() { return Code::COMPARE_IC; } |
547 virtual void FinishCode(Code* code) { | 549 virtual void FinishCode(Handle<Code> code) { |
548 code->set_compare_state(CompareIC::GENERIC); | 550 code->set_compare_state(CompareIC::GENERIC); |
549 } | 551 } |
550 | 552 |
551 // Branch to the label if the given object isn't a symbol. | 553 // Branch to the label if the given object isn't a symbol. |
552 void BranchIfNonSymbol(MacroAssembler* masm, | 554 void BranchIfNonSymbol(MacroAssembler* masm, |
553 Label* label, | 555 Label* label, |
554 Register object, | 556 Register object, |
555 Register scratch); | 557 Register scratch); |
556 | 558 |
557 // Unfortunately you have to run without snapshots to see most of these | 559 // Unfortunately you have to run without snapshots to see most of these |
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602 JSEntryStub() { } | 604 JSEntryStub() { } |
603 | 605 |
604 void Generate(MacroAssembler* masm) { GenerateBody(masm, false); } | 606 void Generate(MacroAssembler* masm) { GenerateBody(masm, false); } |
605 | 607 |
606 protected: | 608 protected: |
607 void GenerateBody(MacroAssembler* masm, bool is_construct); | 609 void GenerateBody(MacroAssembler* masm, bool is_construct); |
608 | 610 |
609 private: | 611 private: |
610 Major MajorKey() { return JSEntry; } | 612 Major MajorKey() { return JSEntry; } |
611 int MinorKey() { return 0; } | 613 int MinorKey() { return 0; } |
| 614 |
| 615 virtual void FinishCode(Handle<Code> code); |
| 616 |
| 617 int handler_offset_; |
612 }; | 618 }; |
613 | 619 |
614 | 620 |
615 class JSConstructEntryStub : public JSEntryStub { | 621 class JSConstructEntryStub : public JSEntryStub { |
616 public: | 622 public: |
617 JSConstructEntryStub() { } | 623 JSConstructEntryStub() { } |
618 | 624 |
619 void Generate(MacroAssembler* masm) { GenerateBody(masm, true); } | 625 void Generate(MacroAssembler* masm) { GenerateBody(masm, true); } |
620 | 626 |
621 private: | 627 private: |
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678 }; | 684 }; |
679 | 685 |
680 | 686 |
681 class CallFunctionStub: public CodeStub { | 687 class CallFunctionStub: public CodeStub { |
682 public: | 688 public: |
683 CallFunctionStub(int argc, CallFunctionFlags flags) | 689 CallFunctionStub(int argc, CallFunctionFlags flags) |
684 : argc_(argc), flags_(flags) { } | 690 : argc_(argc), flags_(flags) { } |
685 | 691 |
686 void Generate(MacroAssembler* masm); | 692 void Generate(MacroAssembler* masm); |
687 | 693 |
688 virtual void FinishCode(Code* code); | 694 virtual void FinishCode(Handle<Code> code); |
689 | 695 |
690 static void Clear(Heap* heap, Address address); | 696 static void Clear(Heap* heap, Address address); |
691 | 697 |
692 static Object* GetCachedValue(Address address); | 698 static Object* GetCachedValue(Address address); |
693 | 699 |
694 static int ExtractArgcFromMinorKey(int minor_key) { | 700 static int ExtractArgcFromMinorKey(int minor_key) { |
695 return ArgcBits::decode(minor_key); | 701 return ArgcBits::decode(minor_key); |
696 } | 702 } |
697 | 703 |
698 // The object that indicates an uninitialized cache. | 704 // The object that indicates an uninitialized cache. |
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989 void Generate(MacroAssembler* masm); | 995 void Generate(MacroAssembler* masm); |
990 virtual int GetCodeKind() { return Code::TO_BOOLEAN_IC; } | 996 virtual int GetCodeKind() { return Code::TO_BOOLEAN_IC; } |
991 virtual void PrintName(StringStream* stream); | 997 virtual void PrintName(StringStream* stream); |
992 | 998 |
993 virtual bool SometimesSetsUpAFrame() { return false; } | 999 virtual bool SometimesSetsUpAFrame() { return false; } |
994 | 1000 |
995 private: | 1001 private: |
996 Major MajorKey() { return ToBoolean; } | 1002 Major MajorKey() { return ToBoolean; } |
997 int MinorKey() { return (tos_.code() << NUMBER_OF_TYPES) | types_.ToByte(); } | 1003 int MinorKey() { return (tos_.code() << NUMBER_OF_TYPES) | types_.ToByte(); } |
998 | 1004 |
999 virtual void FinishCode(Code* code) { | 1005 virtual void FinishCode(Handle<Code> code) { |
1000 code->set_to_boolean_state(types_.ToByte()); | 1006 code->set_to_boolean_state(types_.ToByte()); |
1001 } | 1007 } |
1002 | 1008 |
1003 void CheckOddball(MacroAssembler* masm, | 1009 void CheckOddball(MacroAssembler* masm, |
1004 Type type, | 1010 Type type, |
1005 Heap::RootListIndex value, | 1011 Heap::RootListIndex value, |
1006 bool result); | 1012 bool result); |
1007 void GenerateTypeTransition(MacroAssembler* masm); | 1013 void GenerateTypeTransition(MacroAssembler* masm); |
1008 | 1014 |
1009 Register tos_; | 1015 Register tos_; |
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1056 int MinorKey() { return 0; } | 1062 int MinorKey() { return 0; } |
1057 | 1063 |
1058 void Generate(MacroAssembler* masm); | 1064 void Generate(MacroAssembler* masm); |
1059 | 1065 |
1060 DISALLOW_COPY_AND_ASSIGN(StoreArrayLiteralElementStub); | 1066 DISALLOW_COPY_AND_ASSIGN(StoreArrayLiteralElementStub); |
1061 }; | 1067 }; |
1062 | 1068 |
1063 } } // namespace v8::internal | 1069 } } // namespace v8::internal |
1064 | 1070 |
1065 #endif // V8_CODE_STUBS_H_ | 1071 #endif // V8_CODE_STUBS_H_ |
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