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#include "v8.h" 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "ast.h" 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "bytecodes-irregexp.h" 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "regexp-macro-assembler.h" 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "regexp-macro-assembler-irregexp.h" 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "regexp-macro-assembler-irregexp-inl.h" 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 396ded16be15dd865a9b21ea304d5273c8be299c87Steve Block#ifdef V8_INTERPRETED_REGEXP 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockRegExpMacroAssemblerIrregexp::RegExpMacroAssemblerIrregexp(Vector<byte> buffer) 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block : buffer_(buffer), 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block pc_(0), 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block own_buffer_(false), 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block advance_current_end_(kInvalidPC) { 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockRegExpMacroAssemblerIrregexp::~RegExpMacroAssemblerIrregexp() { 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (backtrack_.is_linked()) backtrack_.Unuse(); 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (own_buffer_) buffer_.Dispose(); 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockRegExpMacroAssemblerIrregexp::IrregexpImplementation 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockRegExpMacroAssemblerIrregexp::Implementation() { 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return kBytecodeImplementation; 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::Bind(Label* l) { 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block advance_current_end_ = kInvalidPC; 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(!l->is_bound()); 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (l->is_linked()) { 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int pos = l->pos(); 66a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block while (pos != 0) { 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int fixup = pos; 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block pos = *reinterpret_cast<int32_t*>(buffer_.start() + fixup); 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block *reinterpret_cast<uint32_t*>(buffer_.start() + fixup) = pc_; 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block l->bind_to(pc_); 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::EmitOrLink(Label* l) { 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (l == NULL) l = &backtrack_; 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (l->is_bound()) { 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(l->pos()); 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int pos = 0; 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (l->is_linked()) { 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block pos = l->pos(); 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block l->link_to(pc_); 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(pos); 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::PopRegister(int register_index) { 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_POP_REGISTER, register_index); 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 98a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::PushRegister( 99a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int register_index, 100a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block StackCheckFlag check_stack_limit) { 101a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 102a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 103a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_PUSH_REGISTER, register_index); 104a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 105a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::WriteCurrentPositionToRegister( 108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int register_index, int cp_offset) { 109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_SET_REGISTER_TO_CP, register_index); 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(cp_offset); // Current position offset. 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 116a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::ClearRegisters(int reg_from, int reg_to) { 117a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(reg_from <= reg_to); 118a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int reg = reg_from; reg <= reg_to; reg++) { 119a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block SetRegister(reg, -1); 120a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 121a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 122a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 123a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 124a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::ReadCurrentPositionFromRegister( 125a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int register_index) { 126a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 127a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 128a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_SET_CP_TO_REGISTER, register_index); 129a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 130a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 131a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 132a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::WriteStackPointerToRegister( 133a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int register_index) { 134a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 135a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 136a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_SET_REGISTER_TO_SP, register_index); 137a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 138a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 139a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 140a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::ReadStackPointerFromRegister( 141a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int register_index) { 142a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 143a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 144a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_SET_SP_TO_REGISTER, register_index); 145a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 146a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 147a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 148f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdochvoid RegExpMacroAssemblerIrregexp::SetCurrentPositionFromEnd(int by) { 149f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch ASSERT(is_uint24(by)); 150f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch Emit(BC_SET_CURRENT_POSITION_FROM_END, by); 151f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch} 152f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 153f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 154a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::SetRegister(int register_index, int to) { 155a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 156a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 157a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_SET_REGISTER, register_index); 158a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(to); 159a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 160a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 161a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 162a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::AdvanceRegister(int register_index, int by) { 163a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 164a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 165a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_ADVANCE_REGISTER, register_index); 166a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(by); 167a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 168a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 169a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 170a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::PopCurrentPosition() { 171a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_POP_CP, 0); 172a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 173a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 174a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 175a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::PushCurrentPosition() { 176a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_PUSH_CP, 0); 177a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 178a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 179a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 180a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::Backtrack() { 181a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_POP_BT, 0); 182a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 183a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 184a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 185a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::GoTo(Label* l) { 186a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (advance_current_end_ == pc_) { 187a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Combine advance current and goto. 188a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block pc_ = advance_current_start_; 189a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_ADVANCE_CP_AND_GOTO, advance_current_offset_); 190a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(l); 191a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block advance_current_end_ = kInvalidPC; 192a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 193a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Regular goto. 194a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_GOTO, 0); 195a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(l); 196a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 197a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 198a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 199a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 200a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::PushBacktrack(Label* l) { 201a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_PUSH_BT, 0); 202a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(l); 203a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 204a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 205a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 206a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::Succeed() { 207a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_SUCCEED, 0); 208a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 209a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 210a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 211a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::Fail() { 212a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_FAIL, 0); 213a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 214a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 215a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 216a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::AdvanceCurrentPosition(int by) { 217a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(by >= kMinCPOffset); 218a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(by <= kMaxCPOffset); 219a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block advance_current_start_ = pc_; 220a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block advance_current_offset_ = by; 221a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_ADVANCE_CP, by); 222a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block advance_current_end_ = pc_; 223a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 224a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 225a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 226a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckGreedyLoop( 227a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_tos_equals_current_position) { 228a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_GREEDY, 0); 229a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_tos_equals_current_position); 230a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 231a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 232a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 233a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::LoadCurrentCharacter(int cp_offset, 234a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_failure, 235a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool check_bounds, 236a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int characters) { 237a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(cp_offset >= kMinCPOffset); 238a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(cp_offset <= kMaxCPOffset); 239a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int bytecode; 240a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (check_bounds) { 241a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (characters == 4) { 242a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bytecode = BC_LOAD_4_CURRENT_CHARS; 243a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else if (characters == 2) { 244a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bytecode = BC_LOAD_2_CURRENT_CHARS; 245a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 246a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(characters == 1); 247a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bytecode = BC_LOAD_CURRENT_CHAR; 248a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 249a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 250a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (characters == 4) { 251a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bytecode = BC_LOAD_4_CURRENT_CHARS_UNCHECKED; 252a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else if (characters == 2) { 253a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bytecode = BC_LOAD_2_CURRENT_CHARS_UNCHECKED; 254a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 255a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(characters == 1); 256a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bytecode = BC_LOAD_CURRENT_CHAR_UNCHECKED; 257a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 258a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 259a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(bytecode, cp_offset); 260a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (check_bounds) EmitOrLink(on_failure); 261a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 262a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 263a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 264a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckCharacterLT(uc16 limit, 265a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_less) { 266a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_LT, limit); 267a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_less); 268a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 269a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 270a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 271a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckCharacterGT(uc16 limit, 272a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_greater) { 273a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_GT, limit); 274a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_greater); 275a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 276a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 277a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 278a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckCharacter(uint32_t c, Label* on_equal) { 279a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (c > MAX_FIRST_ARG) { 280a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_4_CHARS, 0); 281a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(c); 282a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 283a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_CHAR, c); 284a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 285a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_equal); 286a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 287a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 288a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 289a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckAtStart(Label* on_at_start) { 290a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_AT_START, 0); 291a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_at_start); 292a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 293a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 294a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 295a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckNotAtStart(Label* on_not_at_start) { 296a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_NOT_AT_START, 0); 297a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_not_at_start); 298a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 299a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 300a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 301a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckNotCharacter(uint32_t c, 302a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal) { 303a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (c > MAX_FIRST_ARG) { 304a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_NOT_4_CHARS, 0); 305a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(c); 306a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 307a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_NOT_CHAR, c); 308a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 309a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_not_equal); 310a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 311a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 312a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 313a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckCharacterAfterAnd( 314a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t c, 315a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t mask, 316a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_equal) { 317a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (c > MAX_FIRST_ARG) { 318a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_AND_CHECK_4_CHARS, 0); 319a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(c); 320a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 321a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_AND_CHECK_CHAR, c); 322a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 323a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(mask); 324a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_equal); 325a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 326a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 327a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 328a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckNotCharacterAfterAnd( 329a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t c, 330a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t mask, 331a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal) { 332a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (c > MAX_FIRST_ARG) { 333a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_AND_CHECK_NOT_4_CHARS, 0); 334a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(c); 335a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 336a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_AND_CHECK_NOT_CHAR, c); 337a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 338a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(mask); 339a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_not_equal); 340a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 341a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 342a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 343a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckNotCharacterAfterMinusAnd( 344a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uc16 c, 345a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uc16 minus, 346a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uc16 mask, 347a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal) { 348a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_MINUS_AND_CHECK_NOT_CHAR, c); 349a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit16(minus); 350a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit16(mask); 351a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_not_equal); 352a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 353a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 354a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 355a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckNotBackReference(int start_reg, 356a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal) { 357a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(start_reg >= 0); 358a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(start_reg <= kMaxRegister); 359a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_NOT_BACK_REF, start_reg); 360a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_not_equal); 361a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 362a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 363a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 364a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckNotBackReferenceIgnoreCase( 365a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int start_reg, 366a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal) { 367a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(start_reg >= 0); 368a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(start_reg <= kMaxRegister); 369a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_NOT_BACK_REF_NO_CASE, start_reg); 370a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_not_equal); 371a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 372a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 373a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 374a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckNotRegistersEqual(int reg1, 375a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int reg2, 376a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_not_equal) { 377a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(reg1 >= 0); 378a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(reg1 <= kMaxRegister); 379a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_NOT_REGS_EQUAL, reg1); 380a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(reg2); 381a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_not_equal); 382a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 383a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 384a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 385a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::CheckCharacters( 386a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Vector<const uc16> str, 387a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int cp_offset, 388a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_failure, 389a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool check_end_of_string) { 390a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(cp_offset >= kMinCPOffset); 391a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(cp_offset + str.length() - 1 <= kMaxCPOffset); 392a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // It is vital that this loop is backwards due to the unchecked character 393a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // load below. 394a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = str.length() - 1; i >= 0; i--) { 395a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (check_end_of_string && i == str.length() - 1) { 396a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_LOAD_CURRENT_CHAR, cp_offset + i); 397a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_failure); 398a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } else { 399a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_LOAD_CURRENT_CHAR_UNCHECKED, cp_offset + i); 400a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 401a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_NOT_CHAR, str[i]); 402a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_failure); 403a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 404a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 405a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 406a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 407a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::IfRegisterLT(int register_index, 408a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int comparand, 409a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_less_than) { 410a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 411a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 412a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_REGISTER_LT, register_index); 413a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(comparand); 414a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_less_than); 415a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 416a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 417a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 418a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::IfRegisterGE(int register_index, 419a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int comparand, 420a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_greater_or_equal) { 421a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 422a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 423a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_REGISTER_GE, register_index); 424a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit32(comparand); 425a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_greater_or_equal); 426a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 427a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 428a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 429a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::IfRegisterEqPos(int register_index, 430a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Label* on_eq) { 431a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index >= 0); 432a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(register_index <= kMaxRegister); 433a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_CHECK_REGISTER_EQ_POS, register_index); 434a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block EmitOrLink(on_eq); 435a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 436a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 437a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 438053d10c438f14580aaf4ab1b2aad93a5a4fe8b82Steve BlockHandle<HeapObject> RegExpMacroAssemblerIrregexp::GetCode( 439053d10c438f14580aaf4ab1b2aad93a5a4fe8b82Steve Block Handle<String> source) { 440a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Bind(&backtrack_); 441a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Emit(BC_POP_BT, 0); 44244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<ByteArray> array = FACTORY->NewByteArray(length()); 443a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Copy(array->GetDataStartAddress()); 444a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return array; 445a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 446a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 447a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 448a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockint RegExpMacroAssemblerIrregexp::length() { 449a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return pc_; 450a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 451a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 452a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 453a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::Copy(Address a) { 454a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block memcpy(a, buffer_.start(), length()); 455a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 456a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 457a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 458a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid RegExpMacroAssemblerIrregexp::Expand() { 459a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block bool old_buffer_was_our_own = own_buffer_; 460a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Vector<byte> old_buffer = buffer_; 461a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block buffer_ = Vector<byte>::New(old_buffer.length() * 2); 462a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block own_buffer_ = true; 463a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block memcpy(buffer_.start(), old_buffer.start(), old_buffer.length()); 464a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (old_buffer_was_our_own) { 465a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block old_buffer.Dispose(); 466a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 467a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 468a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 4696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block#endif // V8_INTERPRETED_REGEXP 470a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 471a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 472