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Issue 6928060: Merge Label and NearLabel (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: address comments Created 9 years, 7 months ago
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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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1058 } 1058 }
1059 1059
1060 1060
1061 void RegExpMacroAssemblerX64::ReadStackPointerFromRegister(int reg) { 1061 void RegExpMacroAssemblerX64::ReadStackPointerFromRegister(int reg) {
1062 __ movq(backtrack_stackpointer(), register_location(reg)); 1062 __ movq(backtrack_stackpointer(), register_location(reg));
1063 __ addq(backtrack_stackpointer(), Operand(rbp, kStackHighEnd)); 1063 __ addq(backtrack_stackpointer(), Operand(rbp, kStackHighEnd));
1064 } 1064 }
1065 1065
1066 1066
1067 void RegExpMacroAssemblerX64::SetCurrentPositionFromEnd(int by) { 1067 void RegExpMacroAssemblerX64::SetCurrentPositionFromEnd(int by) {
1068 NearLabel after_position; 1068 Label after_position;
1069 __ cmpq(rdi, Immediate(-by * char_size())); 1069 __ cmpq(rdi, Immediate(-by * char_size()));
1070 __ j(greater_equal, &after_position); 1070 __ j(greater_equal, &after_position, Label::kNear);
1071 __ movq(rdi, Immediate(-by * char_size())); 1071 __ movq(rdi, Immediate(-by * char_size()));
1072 // On RegExp code entry (where this operation is used), the character before 1072 // On RegExp code entry (where this operation is used), the character before
1073 // the current position is expected to be already loaded. 1073 // the current position is expected to be already loaded.
1074 // We have advanced the position, so it's safe to read backwards. 1074 // We have advanced the position, so it's safe to read backwards.
1075 LoadCurrentCharacterUnchecked(-1, 1); 1075 LoadCurrentCharacterUnchecked(-1, 1);
1076 __ bind(&after_position); 1076 __ bind(&after_position);
1077 } 1077 }
1078 1078
1079 1079
1080 void RegExpMacroAssemblerX64::SetRegister(int register_index, int to) { 1080 void RegExpMacroAssemblerX64::SetRegister(int register_index, int to) {
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1389 } 1389 }
1390 } 1390 }
1391 1391
1392 #undef __ 1392 #undef __
1393 1393
1394 #endif // V8_INTERPRETED_REGEXP 1394 #endif // V8_INTERPRETED_REGEXP
1395 1395
1396 }} // namespace v8::internal 1396 }} // namespace v8::internal
1397 1397
1398 #endif // V8_TARGET_ARCH_X64 1398 #endif // V8_TARGET_ARCH_X64
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