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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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40 virtual void AdvanceCurrentPosition(int by); | 40 virtual void AdvanceCurrentPosition(int by); |
41 virtual void AdvanceRegister(int reg, int by); | 41 virtual void AdvanceRegister(int reg, int by); |
42 virtual void Backtrack(); | 42 virtual void Backtrack(); |
43 virtual void Bind(Label* label); | 43 virtual void Bind(Label* label); |
44 virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero); | 44 virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero); |
45 virtual void CheckCharacter(uc16 c, Label* on_equal); | 45 virtual void CheckCharacter(uc16 c, Label* on_equal); |
46 virtual void CheckCharacterGT(uc16 limit, Label* on_greater); | 46 virtual void CheckCharacterGT(uc16 limit, Label* on_greater); |
47 virtual void CheckCharacterLT(uc16 limit, Label* on_less); | 47 virtual void CheckCharacterLT(uc16 limit, Label* on_less); |
48 virtual void CheckCharacters(Vector<const uc16> str, | 48 virtual void CheckCharacters(Vector<const uc16> str, |
49 int cp_offset, | 49 int cp_offset, |
50 Label* on_failure); | 50 Label* on_failure, |
51 virtual void CheckCurrentPosition(int register_index, Label* on_equal); | 51 bool check_end_of_string); |
| 52 virtual void CheckGreedyLoop(Label* on_tos_equals_current_position); |
52 virtual void CheckNotAtStart(Label* on_not_at_start); | 53 virtual void CheckNotAtStart(Label* on_not_at_start); |
53 virtual void CheckNotBackReference(int start_reg, Label* on_no_match); | 54 virtual void CheckNotBackReference(int start_reg, Label* on_no_match); |
54 virtual void CheckNotBackReferenceIgnoreCase(int start_reg, | 55 virtual void CheckNotBackReferenceIgnoreCase(int start_reg, |
55 Label* on_no_match); | 56 Label* on_no_match); |
56 virtual void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal); | 57 virtual void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal); |
57 virtual void CheckNotCharacter(uc16 c, Label* on_not_equal); | 58 virtual void CheckNotCharacter(uc16 c, Label* on_not_equal); |
58 virtual void CheckNotCharacterAfterOr(uc16 c, uc16 mask, Label* on_not_equal); | 59 virtual void CheckNotCharacterAfterOr(uc16 c, uc16 mask, Label* on_not_equal); |
59 virtual void CheckNotCharacterAfterMinusOr(uc16 c, | 60 virtual void CheckNotCharacterAfterMinusOr(uc16 c, |
60 uc16 mask, | 61 uc16 mask, |
61 Label* on_not_equal); | 62 Label* on_not_equal); |
62 virtual void DispatchByteMap(uc16 start, | 63 virtual void DispatchByteMap(uc16 start, |
63 Label* byte_map, | 64 Label* byte_map, |
64 const Vector<Label*>& destinations); | 65 const Vector<Label*>& destinations); |
65 virtual void DispatchHalfNibbleMap(uc16 start, | 66 virtual void DispatchHalfNibbleMap(uc16 start, |
66 Label* half_nibble_map, | 67 Label* half_nibble_map, |
67 const Vector<Label*>& destinations); | 68 const Vector<Label*>& destinations); |
68 virtual void DispatchHighByteMap(byte start, | 69 virtual void DispatchHighByteMap(byte start, |
69 Label* byte_map, | 70 Label* byte_map, |
70 const Vector<Label*>& destinations); | 71 const Vector<Label*>& destinations); |
71 virtual void EmitOrLink(Label* label); | 72 virtual void EmitOrLink(Label* label); |
72 virtual void Fail(); | 73 virtual void Fail(); |
73 virtual Handle<Object> GetCode(); | 74 virtual Handle<Object> GetCode(Handle<String> source); |
74 virtual void GoTo(Label* label); | 75 virtual void GoTo(Label* label); |
75 virtual void IfRegisterGE(int reg, int comparand, Label* if_ge); | 76 virtual void IfRegisterGE(int reg, int comparand, Label* if_ge); |
76 virtual void IfRegisterLT(int reg, int comparand, Label* if_lt); | 77 virtual void IfRegisterLT(int reg, int comparand, Label* if_lt); |
77 virtual IrregexpImplementation Implementation(); | 78 virtual IrregexpImplementation Implementation(); |
78 virtual void LoadCurrentCharacter(int cp_offset, Label* on_end_of_input); | 79 virtual void LoadCurrentCharacter(int cp_offset, Label* on_end_of_input); |
| 80 virtual void LoadCurrentCharacterUnchecked(int cp_offset); |
| 81 |
79 virtual void PopCurrentPosition(); | 82 virtual void PopCurrentPosition(); |
80 virtual void PopRegister(int register_index); | 83 virtual void PopRegister(int register_index); |
81 virtual void PushBacktrack(Label* label); | 84 virtual void PushBacktrack(Label* label); |
82 virtual void PushCurrentPosition(); | 85 virtual void PushCurrentPosition(); |
83 virtual void PushRegister(int register_index); | 86 virtual void PushRegister(int register_index); |
84 virtual void ReadCurrentPositionFromRegister(int reg); | 87 virtual void ReadCurrentPositionFromRegister(int reg); |
85 virtual void ReadStackPointerFromRegister(int reg); | 88 virtual void ReadStackPointerFromRegister(int reg); |
86 virtual void SetRegister(int register_index, int to); | 89 virtual void SetRegister(int register_index, int to); |
87 virtual void Succeed(); | 90 virtual void Succeed(); |
88 virtual void WriteCurrentPositionToRegister(int reg); | 91 virtual void WriteCurrentPositionToRegister(int reg, int cp_offset); |
89 virtual void WriteStackPointerToRegister(int reg); | 92 virtual void WriteStackPointerToRegister(int reg); |
90 | 93 |
91 template <typename T> | 94 template <typename T> |
92 static inline bool Execute(Code* code, | 95 static inline bool Execute(Code* code, |
93 T** input, | 96 T** input, |
94 int start_offset, | 97 int start_offset, |
95 int end_offset, | 98 int end_offset, |
96 int* output, | 99 int* output, |
97 bool at_start) { | 100 bool at_start) { |
98 typedef bool (*matcher)(T**, int, int, int*, int); | 101 typedef bool (*matcher)(T**, int, int, int*, int); |
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132 // The register containing the current character after LoadCurrentCharacter. | 135 // The register containing the current character after LoadCurrentCharacter. |
133 Register current_character(); | 136 Register current_character(); |
134 | 137 |
135 // Byte size of chars in the string to match (decided by the Mode argument) | 138 // Byte size of chars in the string to match (decided by the Mode argument) |
136 size_t char_size(); | 139 size_t char_size(); |
137 | 140 |
138 // Equivalent to a conditional branch to the label, unless the label | 141 // Equivalent to a conditional branch to the label, unless the label |
139 // is NULL, in which case it is a conditional Backtrack. | 142 // is NULL, in which case it is a conditional Backtrack. |
140 void BranchOrBacktrack(Condition condition, Label* to); | 143 void BranchOrBacktrack(Condition condition, Label* to); |
141 | 144 |
142 // Read a character from input at the given offset from the current | |
143 // position. | |
144 void LoadCurrentCharToRegister(int cp_offset); | |
145 | |
146 // Load the address of a "constant buffer" (a slice of a byte array) | 145 // Load the address of a "constant buffer" (a slice of a byte array) |
147 // into a register. The address is computed from the ByteArray* address | 146 // into a register. The address is computed from the ByteArray* address |
148 // and an offset. Uses no extra registers. | 147 // and an offset. Uses no extra registers. |
149 void LoadConstantBufferAddress(Register reg, ArraySlice* buffer); | 148 void LoadConstantBufferAddress(Register reg, ArraySlice* buffer); |
150 | 149 |
151 // Adds code that checks whether preemption has been requested | 150 // Adds code that checks whether preemption has been requested |
152 // (and checks if we have hit the stack limit too). | 151 // (and checks if we have hit the stack limit too). |
153 void CheckStackLimit(); | 152 void CheckStackLimit(); |
154 | 153 |
155 MacroAssembler* masm_; | 154 MacroAssembler* masm_; |
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168 Label start_label_; | 167 Label start_label_; |
169 Label success_label_; | 168 Label success_label_; |
170 Label exit_label_; | 169 Label exit_label_; |
171 // Handle used to represent the generated code object itself. | 170 // Handle used to represent the generated code object itself. |
172 Handle<Object> self_; | 171 Handle<Object> self_; |
173 }; | 172 }; |
174 | 173 |
175 }} // namespace v8::internal | 174 }} // namespace v8::internal |
176 | 175 |
177 #endif /* REGEXP_MACRO_ASSEMBLER_IA32_H_ */ | 176 #endif /* REGEXP_MACRO_ASSEMBLER_IA32_H_ */ |
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