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| 1 // Copyright 2008-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2008-2009 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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| 964 __ mov(edi, register_location(reg)); | 964 __ mov(edi, register_location(reg)); |
| 965 } | 965 } |
| 966 | 966 |
| 967 | 967 |
| 968 void RegExpMacroAssemblerIA32::ReadStackPointerFromRegister(int reg) { | 968 void RegExpMacroAssemblerIA32::ReadStackPointerFromRegister(int reg) { |
| 969 __ mov(backtrack_stackpointer(), register_location(reg)); | 969 __ mov(backtrack_stackpointer(), register_location(reg)); |
| 970 __ add(backtrack_stackpointer(), Operand(ebp, kStackHighEnd)); | 970 __ add(backtrack_stackpointer(), Operand(ebp, kStackHighEnd)); |
| 971 } | 971 } |
| 972 | 972 |
| 973 void RegExpMacroAssemblerIA32::SetCurrentPositionFromEnd(int by) { | 973 void RegExpMacroAssemblerIA32::SetCurrentPositionFromEnd(int by) { |
| 974 NearLabel after_position; | 974 Label after_position; |
| 975 __ cmp(edi, -by * char_size()); | 975 __ cmp(edi, -by * char_size()); |
| 976 __ j(greater_equal, &after_position); | 976 __ j(greater_equal, &after_position, Label::kNear); |
| 977 __ mov(edi, -by * char_size()); | 977 __ mov(edi, -by * char_size()); |
| 978 // On RegExp code entry (where this operation is used), the character before | 978 // On RegExp code entry (where this operation is used), the character before |
| 979 // the current position is expected to be already loaded. | 979 // the current position is expected to be already loaded. |
| 980 // We have advanced the position, so it's safe to read backwards. | 980 // We have advanced the position, so it's safe to read backwards. |
| 981 LoadCurrentCharacterUnchecked(-1, 1); | 981 LoadCurrentCharacterUnchecked(-1, 1); |
| 982 __ bind(&after_position); | 982 __ bind(&after_position); |
| 983 } | 983 } |
| 984 | 984 |
| 985 void RegExpMacroAssemblerIA32::SetRegister(int register_index, int to) { | 985 void RegExpMacroAssemblerIA32::SetRegister(int register_index, int to) { |
| 986 ASSERT(register_index >= num_saved_registers_); // Reserved for positions! | 986 ASSERT(register_index >= num_saved_registers_); // Reserved for positions! |
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| 1255 } | 1255 } |
| 1256 | 1256 |
| 1257 | 1257 |
| 1258 #undef __ | 1258 #undef __ |
| 1259 | 1259 |
| 1260 #endif // V8_INTERPRETED_REGEXP | 1260 #endif // V8_INTERPRETED_REGEXP |
| 1261 | 1261 |
| 1262 }} // namespace v8::internal | 1262 }} // namespace v8::internal |
| 1263 | 1263 |
| 1264 #endif // V8_TARGET_ARCH_IA32 | 1264 #endif // V8_TARGET_ARCH_IA32 |
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