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Issue 14194: * Generate quick checks based on mask and compare for... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 12 years 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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36 enum Mode { ASCII = 1, UC16 = 2 }; 36 enum Mode { ASCII = 1, UC16 = 2 };
37 enum Result { EXCEPTION = -1, FAILURE = 0, SUCCESS = 1 }; 37 enum Result { EXCEPTION = -1, FAILURE = 0, SUCCESS = 1 };
38 38
39 RegExpMacroAssemblerIA32(Mode mode, int registers_to_save); 39 RegExpMacroAssemblerIA32(Mode mode, int registers_to_save);
40 virtual ~RegExpMacroAssemblerIA32(); 40 virtual ~RegExpMacroAssemblerIA32();
41 virtual void AdvanceCurrentPosition(int by); 41 virtual void AdvanceCurrentPosition(int by);
42 virtual void AdvanceRegister(int reg, int by); 42 virtual void AdvanceRegister(int reg, int by);
43 virtual void Backtrack(); 43 virtual void Backtrack();
44 virtual void Bind(Label* label); 44 virtual void Bind(Label* label);
45 virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero); 45 virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero);
46 virtual void CheckCharacter(uc16 c, Label* on_equal); 46 virtual void CheckCharacter(uint32_t c, Label* on_equal);
47 virtual void CheckCharacterAfterAnd(uint32_t c,
48 uint32_t mask,
49 Label* on_equal);
47 virtual void CheckCharacterGT(uc16 limit, Label* on_greater); 50 virtual void CheckCharacterGT(uc16 limit, Label* on_greater);
48 virtual void CheckCharacterLT(uc16 limit, Label* on_less); 51 virtual void CheckCharacterLT(uc16 limit, Label* on_less);
49 virtual void CheckCharacters(Vector<const uc16> str, 52 virtual void CheckCharacters(Vector<const uc16> str,
50 int cp_offset, 53 int cp_offset,
51 Label* on_failure, 54 Label* on_failure,
52 bool check_end_of_string); 55 bool check_end_of_string);
53 virtual void CheckGreedyLoop(Label* on_tos_equals_current_position); 56 virtual void CheckGreedyLoop(Label* on_tos_equals_current_position);
54 virtual void CheckNotAtStart(Label* on_not_at_start); 57 virtual void CheckNotAtStart(Label* on_not_at_start);
55 virtual void CheckNotBackReference(int start_reg, Label* on_no_match); 58 virtual void CheckNotBackReference(int start_reg, Label* on_no_match);
56 virtual void CheckNotBackReferenceIgnoreCase(int start_reg, 59 virtual void CheckNotBackReferenceIgnoreCase(int start_reg,
57 Label* on_no_match); 60 Label* on_no_match);
58 virtual void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal); 61 virtual void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal);
59 virtual void CheckNotCharacter(uc16 c, Label* on_not_equal); 62 virtual void CheckNotCharacter(uint32_t c, Label* on_not_equal);
60 virtual void CheckNotCharacterAfterOr(uc16 c, uc16 mask, Label* on_not_equal); 63 virtual void CheckNotCharacterAfterAnd(uint32_t c,
61 virtual void CheckNotCharacterAfterMinusOr(uc16 c, 64 uint32_t mask,
62 uc16 mask, 65 Label* on_not_equal);
63 Label* on_not_equal); 66 virtual void CheckNotCharacterAfterMinusAnd(uc16 c,
67 uc16 minus,
68 uc16 mask,
69 Label* on_not_equal);
64 virtual void DispatchByteMap(uc16 start, 70 virtual void DispatchByteMap(uc16 start,
65 Label* byte_map, 71 Label* byte_map,
66 const Vector<Label*>& destinations); 72 const Vector<Label*>& destinations);
67 virtual void DispatchHalfNibbleMap(uc16 start, 73 virtual void DispatchHalfNibbleMap(uc16 start,
68 Label* half_nibble_map, 74 Label* half_nibble_map,
69 const Vector<Label*>& destinations); 75 const Vector<Label*>& destinations);
70 virtual void DispatchHighByteMap(byte start, 76 virtual void DispatchHighByteMap(byte start,
71 Label* byte_map, 77 Label* byte_map,
72 const Vector<Label*>& destinations); 78 const Vector<Label*>& destinations);
73 virtual void EmitOrLink(Label* label); 79 virtual void EmitOrLink(Label* label);
74 virtual void Fail(); 80 virtual void Fail();
75 virtual Handle<Object> GetCode(Handle<String> source); 81 virtual Handle<Object> GetCode(Handle<String> source);
76 virtual void GoTo(Label* label); 82 virtual void GoTo(Label* label);
77 virtual void IfRegisterGE(int reg, int comparand, Label* if_ge); 83 virtual void IfRegisterGE(int reg, int comparand, Label* if_ge);
78 virtual void IfRegisterLT(int reg, int comparand, Label* if_lt); 84 virtual void IfRegisterLT(int reg, int comparand, Label* if_lt);
79 virtual IrregexpImplementation Implementation(); 85 virtual IrregexpImplementation Implementation();
80 virtual void LoadCurrentCharacter(int cp_offset, Label* on_end_of_input); 86 virtual void LoadCurrentCharacter(int cp_offset,
81 virtual void LoadCurrentCharacterUnchecked(int cp_offset); 87 Label* on_end_of_input,
82 88 bool check_bounds = true,
89 int characters = 1);
83 virtual void PopCurrentPosition(); 90 virtual void PopCurrentPosition();
84 virtual void PopRegister(int register_index); 91 virtual void PopRegister(int register_index);
85 virtual void PushBacktrack(Label* label); 92 virtual void PushBacktrack(Label* label);
86 virtual void PushCurrentPosition(); 93 virtual void PushCurrentPosition();
87 virtual void PushRegister(int register_index); 94 virtual void PushRegister(int register_index);
88 virtual void ReadCurrentPositionFromRegister(int reg); 95 virtual void ReadCurrentPositionFromRegister(int reg);
89 virtual void ReadStackPointerFromRegister(int reg); 96 virtual void ReadStackPointerFromRegister(int reg);
90 virtual void SetRegister(int register_index, int to); 97 virtual void SetRegister(int register_index, int to);
91 virtual void Succeed(); 98 virtual void Succeed();
92 virtual void WriteCurrentPositionToRegister(int reg, int cp_offset); 99 virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);
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128 static const int kRegExpConstantsSize = 256; 135 static const int kRegExpConstantsSize = 256;
129 // Only unroll loops up to this length. TODO(lrn): Actually use this. 136 // Only unroll loops up to this length. TODO(lrn): Actually use this.
130 static const int kMaxInlineStringTests = 32; 137 static const int kMaxInlineStringTests = 32;
131 138
132 // Compares two-byte strings case insensitively. 139 // Compares two-byte strings case insensitively.
133 static int CaseInsensitiveCompareUC16(uc16** buffer, 140 static int CaseInsensitiveCompareUC16(uc16** buffer,
134 int byte_offset1, 141 int byte_offset1,
135 int byte_offset2, 142 int byte_offset2,
136 size_t byte_length); 143 size_t byte_length);
137 144
145 void LoadCurrentCharacterUnchecked(int cp_offset, int characters);
146
138 // Called from RegExp if the stack-guard is triggered. 147 // Called from RegExp if the stack-guard is triggered.
139 // If the code object is relocated, the return address is fixed before 148 // If the code object is relocated, the return address is fixed before
140 // returning. 149 // returning.
141 static int CheckStackGuardState(Address return_address, Code* re_code); 150 static int CheckStackGuardState(Address return_address, Code* re_code);
142 151
143 // The ebp-relative location of a regexp register. 152 // The ebp-relative location of a regexp register.
144 Operand register_location(int register_index); 153 Operand register_location(int register_index);
145 154
146 // The register containing the current character after LoadCurrentCharacter. 155 // The register containing the current character after LoadCurrentCharacter.
147 Register current_character(); 156 Register current_character();
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194 Label success_label_; 203 Label success_label_;
195 Label exit_label_; 204 Label exit_label_;
196 Label check_preempt_label_; 205 Label check_preempt_label_;
197 // Handle used to represent the generated code object itself. 206 // Handle used to represent the generated code object itself.
198 Handle<Object> self_; 207 Handle<Object> self_;
199 }; 208 };
200 209
201 }} // namespace v8::internal 210 }} // namespace v8::internal
202 211
203 #endif /* REGEXP_MACRO_ASSEMBLER_IA32_H_ */ 212 #endif /* REGEXP_MACRO_ASSEMBLER_IA32_H_ */
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