1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2008-2009 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifndef V8_IA32_REGEXP_MACRO_ASSEMBLER_IA32_H_ 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define V8_IA32_REGEXP_MACRO_ASSEMBLER_IA32_H_ 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch#include "ia32/assembler-ia32.h" 323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch#include "ia32/assembler-ia32-inl.h" 333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 376ded16be15dd865a9b21ea304d5273c8be299c87Steve Block#ifdef V8_INTERPRETED_REGEXP 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass RegExpMacroAssemblerIA32: public RegExpMacroAssembler { 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block RegExpMacroAssemblerIA32() { } 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual ~RegExpMacroAssemblerIA32() { } 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 446ded16be15dd865a9b21ea304d5273c8be299c87Steve Block#else // V8_INTERPRETED_REGEXP 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass RegExpMacroAssemblerIA32: public NativeRegExpMacroAssembler { 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public: 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block RegExpMacroAssemblerIA32(Mode mode, int registers_to_save); 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual ~RegExpMacroAssemblerIA32(); 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual int stack_limit_slack(); 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void AdvanceCurrentPosition(int by); 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void AdvanceRegister(int reg, int by); 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void Backtrack(); 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void Bind(Label* label); 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckAtStart(Label* on_at_start); 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckCharacter(uint32_t c, Label* on_equal); 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckCharacterAfterAnd(uint32_t c, 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t mask, 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_equal); 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckCharacterGT(uc16 limit, Label* on_greater); 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckCharacterLT(uc16 limit, Label* on_less); 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckCharacters(Vector<const uc16> str, 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int cp_offset, 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_failure, 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool check_end_of_string); 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // A "greedy loop" is a loop that is both greedy and with a simple 66a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // body. It has a particularly simple implementation. 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckGreedyLoop(Label* on_tos_equals_current_position); 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckNotAtStart(Label* on_not_at_start); 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckNotBackReference(int start_reg, Label* on_no_match); 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckNotBackReferenceIgnoreCase(int start_reg, 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_no_match); 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal); 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckNotCharacter(uint32_t c, Label* on_not_equal); 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckNotCharacterAfterAnd(uint32_t c, 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t mask, 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal); 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckNotCharacterAfterMinusAnd(uc16 c, 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uc16 minus, 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uc16 mask, 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal); 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Checks whether the given offset from the current position is before 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // the end of the string. 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void CheckPosition(int cp_offset, Label* on_outside_input); 84e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke virtual bool CheckSpecialCharacterClass(uc16 type, Label* on_no_match); 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void Fail(); 86053d10c438f14580aaf4ab1b2aad93a5a4fe8b82Steve Block virtual Handle<HeapObject> GetCode(Handle<String> source); 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void GoTo(Label* label); 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void IfRegisterGE(int reg, int comparand, Label* if_ge); 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void IfRegisterLT(int reg, int comparand, Label* if_lt); 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void IfRegisterEqPos(int reg, Label* if_eq); 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual IrregexpImplementation Implementation(); 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void LoadCurrentCharacter(int cp_offset, 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_end_of_input, 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool check_bounds = true, 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int characters = 1); 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void PopCurrentPosition(); 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void PopRegister(int register_index); 98a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void PushBacktrack(Label* label); 99a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void PushCurrentPosition(); 100a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void PushRegister(int register_index, 101a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block StackCheckFlag check_stack_limit); 102a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void ReadCurrentPositionFromRegister(int reg); 103a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void ReadStackPointerFromRegister(int reg); 104f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch virtual void SetCurrentPositionFromEnd(int by); 105a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void SetRegister(int register_index, int to); 106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void Succeed(); 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void WriteCurrentPositionToRegister(int reg, int cp_offset); 108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void ClearRegisters(int reg_from, int reg_to); 109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block virtual void WriteStackPointerToRegister(int reg); 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Called from RegExp if the stack-guard is triggered. 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // If the code object is relocated, the return address is fixed before 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // returning. 114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static int CheckStackGuardState(Address* return_address, 115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Code* re_code, 116a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Address re_frame); 117a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 118a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block private: 119a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Offsets from ebp of function parameters and stored registers. 120a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kFramePointer = 0; 121a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Above the frame pointer - function parameters and return address. 122a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kReturn_eip = kFramePointer + kPointerSize; 123a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kFrameAlign = kReturn_eip + kPointerSize; 124a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Parameters. 125a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kInputString = kFrameAlign; 126a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kStartIndex = kInputString + kPointerSize; 127a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kInputStart = kStartIndex + kPointerSize; 128a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kInputEnd = kInputStart + kPointerSize; 129a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kRegisterOutput = kInputEnd + kPointerSize; 130d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke static const int kStackHighEnd = kRegisterOutput + kPointerSize; 131e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke static const int kDirectCall = kStackHighEnd + kPointerSize; 13244f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kIsolate = kDirectCall + kPointerSize; 133a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Below the frame pointer - local stack variables. 134a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // When adding local variables remember to push space for them in 135a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // the frame in GetCode. 136a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kBackup_esi = kFramePointer - kPointerSize; 137a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kBackup_edi = kBackup_esi - kPointerSize; 138a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kBackup_ebx = kBackup_edi - kPointerSize; 139a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const int kInputStartMinusOne = kBackup_ebx - kPointerSize; 140a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // First register address. Following registers are below it on the stack. 14125f6136652d8341ed047e7fc1a450af5bd218ea9Kristian Monsen static const int kRegisterZero = kInputStartMinusOne - kPointerSize; 142a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 143a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Initial size of code buffer. 144a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const size_t kRegExpCodeSize = 1024; 145a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 146a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Load a number of characters at the given offset from the 147a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // current position, into the current-character register. 148a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block void LoadCurrentCharacterUnchecked(int cp_offset, int character_count); 149a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 150a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check whether preemption has been requested. 151a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block void CheckPreemption(); 152a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 153a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Check whether we are exceeding the stack limit on the backtrack stack. 154a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block void CheckStackLimit(); 155a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 156a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Generate a call to CheckStackGuardState. 157a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block void CallCheckStackGuardState(Register scratch); 158a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 159a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // The ebp-relative location of a regexp register. 160a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Operand register_location(int register_index); 161a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 162a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // The register containing the current character after LoadCurrentCharacter. 163a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline Register current_character() { return edx; } 164a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 165a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // The register containing the backtrack stack top. Provides a meaningful 166a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // name to the register. 167a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline Register backtrack_stackpointer() { return ecx; } 168a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 169a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Byte size of chars in the string to match (decided by the Mode argument) 170a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline int char_size() { return static_cast<int>(mode_); } 171a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 172a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Equivalent to a conditional branch to the label, unless the label 173a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // is NULL, in which case it is a conditional Backtrack. 174257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch void BranchOrBacktrack(Condition condition, Label* to); 175a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 176a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Call and return internally in the generated code in a way that 177a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // is GC-safe (i.e., doesn't leave absolute code addresses on the stack) 178a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline void SafeCall(Label* to); 179a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline void SafeReturn(); 180a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline void SafeCallTarget(Label* name); 181a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 182a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Pushes the value of a register on the backtrack stack. Decrements the 183a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // stack pointer (ecx) by a word size and stores the register's value there. 184a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline void Push(Register source); 185a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 186a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Pushes a value on the backtrack stack. Decrements the stack pointer (ecx) 187a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // by a word size and stores the value there. 188a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline void Push(Immediate value); 189a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 190a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Pops a value from the backtrack stack. Reads the word at the stack pointer 191a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // (ecx) and increments it by a word size. 192a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block inline void Pop(Register target); 193a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 194a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block MacroAssembler* masm_; 195a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 196a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Which mode to generate code for (ASCII or UC16). 197a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Mode mode_; 198a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 199a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // One greater than maximal register index actually used. 200a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int num_registers_; 201a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 202a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Number of registers to output at the end (the saved registers 203a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // are always 0..num_saved_registers_-1) 204a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int num_saved_registers_; 205a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 206a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Labels used internally. 207a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label entry_label_; 208a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label start_label_; 209a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label success_label_; 210a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label backtrack_label_; 211a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label exit_label_; 212a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label check_preempt_label_; 213a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label stack_overflow_label_; 214a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}; 2156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block#endif // V8_INTERPRETED_REGEXP 216a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 217a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block}} // namespace v8::internal 218a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 219a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif // V8_IA32_REGEXP_MACRO_ASSEMBLER_IA32_H_ 220