1257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch// Copyright 2011 the V8 project authors. All rights reserved. 244f0eee88ff00398ff7f715fab053374d808c90dSteve Block// Redistribution and use in source and binary forms, with or without 344f0eee88ff00398ff7f715fab053374d808c90dSteve Block// modification, are permitted provided that the following conditions are 444f0eee88ff00398ff7f715fab053374d808c90dSteve Block// met: 544f0eee88ff00398ff7f715fab053374d808c90dSteve Block// 644f0eee88ff00398ff7f715fab053374d808c90dSteve Block// * Redistributions of source code must retain the above copyright 744f0eee88ff00398ff7f715fab053374d808c90dSteve Block// notice, this list of conditions and the following disclaimer. 844f0eee88ff00398ff7f715fab053374d808c90dSteve Block// * Redistributions in binary form must reproduce the above 944f0eee88ff00398ff7f715fab053374d808c90dSteve Block// copyright notice, this list of conditions and the following 1044f0eee88ff00398ff7f715fab053374d808c90dSteve Block// disclaimer in the documentation and/or other materials provided 1144f0eee88ff00398ff7f715fab053374d808c90dSteve Block// with the distribution. 1244f0eee88ff00398ff7f715fab053374d808c90dSteve Block// * Neither the name of Google Inc. nor the names of its 1344f0eee88ff00398ff7f715fab053374d808c90dSteve Block// contributors may be used to endorse or promote products derived 1444f0eee88ff00398ff7f715fab053374d808c90dSteve Block// from this software without specific prior written permission. 1544f0eee88ff00398ff7f715fab053374d808c90dSteve Block// 1644f0eee88ff00398ff7f715fab053374d808c90dSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1744f0eee88ff00398ff7f715fab053374d808c90dSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1844f0eee88ff00398ff7f715fab053374d808c90dSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1944f0eee88ff00398ff7f715fab053374d808c90dSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2044f0eee88ff00398ff7f715fab053374d808c90dSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2144f0eee88ff00398ff7f715fab053374d808c90dSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2244f0eee88ff00398ff7f715fab053374d808c90dSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2344f0eee88ff00398ff7f715fab053374d808c90dSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2444f0eee88ff00398ff7f715fab053374d808c90dSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2544f0eee88ff00398ff7f715fab053374d808c90dSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2644f0eee88ff00398ff7f715fab053374d808c90dSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2944f0eee88ff00398ff7f715fab053374d808c90dSteve Block#ifndef V8_MIPS_REGEXP_MACRO_ASSEMBLER_MIPS_H_ 3044f0eee88ff00398ff7f715fab053374d808c90dSteve Block#define V8_MIPS_REGEXP_MACRO_ASSEMBLER_MIPS_H_ 3144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch#include "mips/assembler-mips.h" 333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch#include "mips/assembler-mips-inl.h" 343fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch#include "macro-assembler.h" 353fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch#include "code.h" 363fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch#include "mips/macro-assembler-mips.h" 373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3844f0eee88ff00398ff7f715fab053374d808c90dSteve Blocknamespace v8 { 3944f0eee88ff00398ff7f715fab053374d808c90dSteve Blocknamespace internal { 4044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4144f0eee88ff00398ff7f715fab053374d808c90dSteve Block#ifdef V8_INTERPRETED_REGEXP 4244f0eee88ff00398ff7f715fab053374d808c90dSteve Blockclass RegExpMacroAssemblerMIPS: public RegExpMacroAssembler { 4344f0eee88ff00398ff7f715fab053374d808c90dSteve Block public: 4444f0eee88ff00398ff7f715fab053374d808c90dSteve Block RegExpMacroAssemblerMIPS(); 4544f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual ~RegExpMacroAssemblerMIPS(); 4644f0eee88ff00398ff7f715fab053374d808c90dSteve Block}; 4744f0eee88ff00398ff7f715fab053374d808c90dSteve Block#else // V8_INTERPRETED_REGEXP 4844f0eee88ff00398ff7f715fab053374d808c90dSteve Blockclass RegExpMacroAssemblerMIPS: public NativeRegExpMacroAssembler { 4944f0eee88ff00398ff7f715fab053374d808c90dSteve Block public: 5044f0eee88ff00398ff7f715fab053374d808c90dSteve Block RegExpMacroAssemblerMIPS(Mode mode, int registers_to_save); 5144f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual ~RegExpMacroAssemblerMIPS(); 5244f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual int stack_limit_slack(); 5344f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void AdvanceCurrentPosition(int by); 5444f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void AdvanceRegister(int reg, int by); 5544f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void Backtrack(); 5644f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void Bind(Label* label); 5744f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckAtStart(Label* on_at_start); 5844f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckCharacter(uint32_t c, Label* on_equal); 5944f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckCharacterAfterAnd(uint32_t c, 6044f0eee88ff00398ff7f715fab053374d808c90dSteve Block uint32_t mask, 6144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label* on_equal); 6244f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckCharacterGT(uc16 limit, Label* on_greater); 6344f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckCharacterLT(uc16 limit, Label* on_less); 6444f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckCharacters(Vector<const uc16> str, 6544f0eee88ff00398ff7f715fab053374d808c90dSteve Block int cp_offset, 6644f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label* on_failure, 6744f0eee88ff00398ff7f715fab053374d808c90dSteve Block bool check_end_of_string); 6844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // A "greedy loop" is a loop that is both greedy and with a simple 6944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // body. It has a particularly simple implementation. 7044f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckGreedyLoop(Label* on_tos_equals_current_position); 7144f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckNotAtStart(Label* on_not_at_start); 7244f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckNotBackReference(int start_reg, Label* on_no_match); 7344f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckNotBackReferenceIgnoreCase(int start_reg, 7444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label* on_no_match); 7544f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal); 7644f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckNotCharacter(uint32_t c, Label* on_not_equal); 7744f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckNotCharacterAfterAnd(uint32_t c, 7844f0eee88ff00398ff7f715fab053374d808c90dSteve Block uint32_t mask, 7944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label* on_not_equal); 8044f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckNotCharacterAfterMinusAnd(uc16 c, 8144f0eee88ff00398ff7f715fab053374d808c90dSteve Block uc16 minus, 8244f0eee88ff00398ff7f715fab053374d808c90dSteve Block uc16 mask, 8344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label* on_not_equal); 8444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Checks whether the given offset from the current position is before 8544f0eee88ff00398ff7f715fab053374d808c90dSteve Block // the end of the string. 8644f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void CheckPosition(int cp_offset, Label* on_outside_input); 8744f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual bool CheckSpecialCharacterClass(uc16 type, 8844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label* on_no_match); 8944f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void Fail(); 90053d10c438f14580aaf4ab1b2aad93a5a4fe8b82Steve Block virtual Handle<HeapObject> GetCode(Handle<String> source); 9144f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void GoTo(Label* label); 9244f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void IfRegisterGE(int reg, int comparand, Label* if_ge); 9344f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void IfRegisterLT(int reg, int comparand, Label* if_lt); 9444f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void IfRegisterEqPos(int reg, Label* if_eq); 9544f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual IrregexpImplementation Implementation(); 9644f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void LoadCurrentCharacter(int cp_offset, 9744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label* on_end_of_input, 9844f0eee88ff00398ff7f715fab053374d808c90dSteve Block bool check_bounds = true, 9944f0eee88ff00398ff7f715fab053374d808c90dSteve Block int characters = 1); 10044f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void PopCurrentPosition(); 10144f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void PopRegister(int register_index); 10244f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void PushBacktrack(Label* label); 10344f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void PushCurrentPosition(); 10444f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void PushRegister(int register_index, 10544f0eee88ff00398ff7f715fab053374d808c90dSteve Block StackCheckFlag check_stack_limit); 10644f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void ReadCurrentPositionFromRegister(int reg); 10744f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void ReadStackPointerFromRegister(int reg); 10844f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void SetCurrentPositionFromEnd(int by); 10944f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void SetRegister(int register_index, int to); 11044f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void Succeed(); 11144f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void WriteCurrentPositionToRegister(int reg, int cp_offset); 11244f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void ClearRegisters(int reg_from, int reg_to); 11344f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void WriteStackPointerToRegister(int reg); 11444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 11544f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Called from RegExp if the stack-guard is triggered. 11644f0eee88ff00398ff7f715fab053374d808c90dSteve Block // If the code object is relocated, the return address is fixed before 11744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // returning. 11844f0eee88ff00398ff7f715fab053374d808c90dSteve Block static int CheckStackGuardState(Address* return_address, 11944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Code* re_code, 12044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Address re_frame); 121589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 12244f0eee88ff00398ff7f715fab053374d808c90dSteve Block private: 12344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Offsets from frame_pointer() of function parameters and stored registers. 12444f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kFramePointer = 0; 12544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 12644f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Above the frame pointer - Stored registers and stack passed parameters. 12744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Registers s0 to s7, fp, and ra. 12844f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kStoredRegisters = kFramePointer; 12944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Return address (stored from link register, read into pc on return). 13044f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kReturnAddress = kStoredRegisters + 9 * kPointerSize; 131257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch static const int kSecondaryReturnAddress = kReturnAddress + kPointerSize; 13244f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Stack frame header. 13344f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kStackFrameHeader = kReturnAddress + kPointerSize; 13444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Stack parameters placed by caller. 135257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch static const int kRegisterOutput = kStackFrameHeader + 20; 13644f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kStackHighEnd = kRegisterOutput + kPointerSize; 13744f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kDirectCall = kStackHighEnd + kPointerSize; 13844f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kIsolate = kDirectCall + kPointerSize; 13944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 14044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Below the frame pointer. 14144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Register parameters stored by setup code. 14244f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kInputEnd = kFramePointer - kPointerSize; 14344f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kInputStart = kInputEnd - kPointerSize; 14444f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kStartIndex = kInputStart - kPointerSize; 14544f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kInputString = kStartIndex - kPointerSize; 14644f0eee88ff00398ff7f715fab053374d808c90dSteve Block // When adding local variables remember to push space for them in 14744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // the frame in GetCode. 14844f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kInputStartMinusOne = kInputString - kPointerSize; 14944f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kAtStart = kInputStartMinusOne - kPointerSize; 15044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // First register address. Following registers are below it on the stack. 15144f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const int kRegisterZero = kAtStart - kPointerSize; 15244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 15344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Initial size of code buffer. 15444f0eee88ff00398ff7f715fab053374d808c90dSteve Block static const size_t kRegExpCodeSize = 1024; 15544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 15644f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Load a number of characters at the given offset from the 15744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // current position, into the current-character register. 15844f0eee88ff00398ff7f715fab053374d808c90dSteve Block void LoadCurrentCharacterUnchecked(int cp_offset, int character_count); 15944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 16044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Check whether preemption has been requested. 16144f0eee88ff00398ff7f715fab053374d808c90dSteve Block void CheckPreemption(); 16244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 16344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Check whether we are exceeding the stack limit on the backtrack stack. 16444f0eee88ff00398ff7f715fab053374d808c90dSteve Block void CheckStackLimit(); 16544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 16644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 16744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Generate a call to CheckStackGuardState. 16844f0eee88ff00398ff7f715fab053374d808c90dSteve Block void CallCheckStackGuardState(Register scratch); 16944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 17044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // The ebp-relative location of a regexp register. 17144f0eee88ff00398ff7f715fab053374d808c90dSteve Block MemOperand register_location(int register_index); 17244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 17344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Register holding the current input position as negative offset from 17444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // the end of the string. 17544f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline Register current_input_offset() { return t2; } 17644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 17744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // The register containing the current character after LoadCurrentCharacter. 17844f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline Register current_character() { return t3; } 17944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 18044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Register holding address of the end of the input string. 18144f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline Register end_of_input_address() { return t6; } 18244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 18344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Register holding the frame address. Local variables, parameters and 18444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // regexp registers are addressed relative to this. 18544f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline Register frame_pointer() { return fp; } 18644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 18744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // The register containing the backtrack stack top. Provides a meaningful 18844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // name to the register. 18944f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline Register backtrack_stackpointer() { return t4; } 19044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 19144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Register holding pointer to the current code object. 19244f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline Register code_pointer() { return t1; } 19344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 194257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Byte size of chars in the string to match (decided by the Mode argument). 19544f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline int char_size() { return static_cast<int>(mode_); } 19644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 19744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Equivalent to a conditional branch to the label, unless the label 19844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // is NULL, in which case it is a conditional Backtrack. 19944f0eee88ff00398ff7f715fab053374d808c90dSteve Block void BranchOrBacktrack(Label* to, 20044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Condition condition, 20144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register rs, 20244f0eee88ff00398ff7f715fab053374d808c90dSteve Block const Operand& rt); 20344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 20444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Call and return internally in the generated code in a way that 20544f0eee88ff00398ff7f715fab053374d808c90dSteve Block // is GC-safe (i.e., doesn't leave absolute code addresses on the stack) 20644f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline void SafeCall(Label* to, 20744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Condition cond, 20844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register rs, 20944f0eee88ff00398ff7f715fab053374d808c90dSteve Block const Operand& rt); 21044f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline void SafeReturn(); 21144f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline void SafeCallTarget(Label* name); 21244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 21344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Pushes the value of a register on the backtrack stack. Decrements the 21444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // stack pointer by a word size and stores the register's value there. 21544f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline void Push(Register source); 21644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 21744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Pops a value from the backtrack stack. Reads the word at the stack pointer 21844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // and increments it by a word size. 21944f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline void Pop(Register target); 22044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 22144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Calls a C function and cleans up the frame alignment done by 22244f0eee88ff00398ff7f715fab053374d808c90dSteve Block // by FrameAlign. The called function *is* allowed to trigger a garbage 22344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // collection, but may not take more than four arguments (no arguments 22444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // passed on the stack), and the first argument will be a pointer to the 22544f0eee88ff00398ff7f715fab053374d808c90dSteve Block // return address. 22644f0eee88ff00398ff7f715fab053374d808c90dSteve Block inline void CallCFunctionUsingStub(ExternalReference function, 22744f0eee88ff00398ff7f715fab053374d808c90dSteve Block int num_arguments); 22844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 22944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 23044f0eee88ff00398ff7f715fab053374d808c90dSteve Block MacroAssembler* masm_; 23144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 23244f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Which mode to generate code for (ASCII or UC16). 23344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Mode mode_; 23444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 23544f0eee88ff00398ff7f715fab053374d808c90dSteve Block // One greater than maximal register index actually used. 23644f0eee88ff00398ff7f715fab053374d808c90dSteve Block int num_registers_; 23744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 23844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Number of registers to output at the end (the saved registers 239257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // are always 0..num_saved_registers_-1). 24044f0eee88ff00398ff7f715fab053374d808c90dSteve Block int num_saved_registers_; 24144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 24244f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Labels used internally. 24344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label entry_label_; 24444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label start_label_; 24544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label success_label_; 24644f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label backtrack_label_; 24744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label exit_label_; 24844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label check_preempt_label_; 24944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label stack_overflow_label_; 250257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Label internal_failure_label_; 25144f0eee88ff00398ff7f715fab053374d808c90dSteve Block}; 25244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 25344f0eee88ff00398ff7f715fab053374d808c90dSteve Block#endif // V8_INTERPRETED_REGEXP 25444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 25544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 25644f0eee88ff00398ff7f715fab053374d808c90dSteve Block}} // namespace v8::internal 25744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 25844f0eee88ff00398ff7f715fab053374d808c90dSteve Block#endif // V8_MIPS_REGEXP_MACRO_ASSEMBLER_MIPS_H_ 259