src/regexp-macro-assembler-tracer.h - Issue 17416: * Move irregexp backtrack stack to external memory area, instead of the system stack.

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Issue 17416: * Move irregexp backtrack stack to external memory area, instead of the system stack. (Closed)

Patch Set: Added explicit stack check requests to push operations. Created 11 years, 11 months ago

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1 // Copyright 2008 the V8 project authors. All rights reserved.	1 // Copyright 2008 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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28 #ifndef REGEXP_MACRO_ASSEMBLER_TRACER_H_	28 #ifndef REGEXP_MACRO_ASSEMBLER_TRACER_H_

29 #define REGEXP_MACRO_ASSEMBLER_TRACER_H_	29 #define REGEXP_MACRO_ASSEMBLER_TRACER_H_

30	30

31 namespace v8 { namespace internal {	31 namespace v8 { namespace internal {

32	32

33 // Decorator on a RegExpMacroAssembler that write all calls.	33 // Decorator on a RegExpMacroAssembler that write all calls.

34 class RegExpMacroAssemblerTracer: public RegExpMacroAssembler {	34 class RegExpMacroAssemblerTracer: public RegExpMacroAssembler {

35 public:	35 public:

36 explicit RegExpMacroAssemblerTracer(RegExpMacroAssembler* assembler);	36 explicit RegExpMacroAssemblerTracer(RegExpMacroAssembler* assembler);

37 virtual ~RegExpMacroAssemblerTracer();	37 virtual ~RegExpMacroAssemblerTracer();

	38 virtual int stack_limit() { return assembler_->stack_limit(); }

38	39

39 virtual void AdvanceCurrentPosition(int by); // Signed cp change.	40 virtual void AdvanceCurrentPosition(int by); // Signed cp change.

40 virtual void AdvanceRegister(int reg, int by); // r[reg] += by.	41 virtual void AdvanceRegister(int reg, int by); // r[reg] += by.

41 virtual void Backtrack();	42 virtual void Backtrack();

42 virtual void Bind(Label* label);	43 virtual void Bind(Label* label);

43 virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero);	44 virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero);

44 virtual void CheckCharacter(uint32_t c, Label* on_equal);	45 virtual void CheckCharacter(uint32_t c, Label* on_equal);

45 virtual void CheckCharacterAfterAnd(uint32_t c,	46 virtual void CheckCharacterAfterAnd(uint32_t c,

46 uint32_t and_with,	47 uint32_t and_with,

47 Label* on_equal);	48 Label* on_equal);

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89 virtual void IfRegisterGE(int reg, int comparand, Label* if_ge);	90 virtual void IfRegisterGE(int reg, int comparand, Label* if_ge);

90 virtual void IfRegisterLT(int reg, int comparand, Label* if_lt);	91 virtual void IfRegisterLT(int reg, int comparand, Label* if_lt);

91 virtual void IfRegisterEqPos(int reg, Label* if_eq);	92 virtual void IfRegisterEqPos(int reg, Label* if_eq);

92 virtual IrregexpImplementation Implementation();	93 virtual IrregexpImplementation Implementation();

93 virtual void LoadCurrentCharacter(int cp_offset,	94 virtual void LoadCurrentCharacter(int cp_offset,

94 Label* on_end_of_input,	95 Label* on_end_of_input,

95 bool check_bounds = true,	96 bool check_bounds = true,

96 int characters = 1);	97 int characters = 1);

97 virtual void PopCurrentPosition();	98 virtual void PopCurrentPosition();

98 virtual void PopRegister(int register_index);	99 virtual void PopRegister(int register_index);

99 virtual void PushBacktrack(Label* label);	100 virtual void PushBacktrack(Label* label, StackCheckFlag check_stack_limit);

100 virtual void PushCurrentPosition();	101 virtual void PushCurrentPosition(StackCheckFlag check_stack_limit);

101 virtual void PushRegister(int register_index);	102 virtual void PushRegister(int register_index,

	103 StackCheckFlag check_stack_limit);

102 virtual void ReadCurrentPositionFromRegister(int reg);	104 virtual void ReadCurrentPositionFromRegister(int reg);

103 virtual void ReadStackPointerFromRegister(int reg);	105 virtual void ReadStackPointerFromRegister(int reg);

104 virtual void SetRegister(int register_index, int to);	106 virtual void SetRegister(int register_index, int to);

105 virtual void Succeed();	107 virtual void Succeed();

106 virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);	108 virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);

107 virtual void WriteStackPointerToRegister(int reg);	109 virtual void WriteStackPointerToRegister(int reg);

108 private:	110 private:

109 RegExpMacroAssembler* assembler_;	111 RegExpMacroAssembler* assembler_;

110 };	112 };

111	113

112 }} // namespace v8::internal	114 }} // namespace v8::internal

113	115

114 #endif // REGEXP_MACRO_ASSEMBLER_TRACER_H_	116 #endif // REGEXP_MACRO_ASSEMBLER_TRACER_H_

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