| OLD | NEW |
| 1 // Copyright 2008-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2008-2009 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // A light-weight assembler for the Irregexp byte code. | 5 // A light-weight assembler for the Irregexp byte code. |
| 6 | 6 |
| 7 | 7 |
| 8 #include "src/v8.h" | 8 #include "src/v8.h" |
| 9 | 9 |
| 10 #include "src/ast.h" | 10 #include "src/ast.h" |
| 11 #include "src/bytecodes-irregexp.h" | 11 #include "src/bytecodes-irregexp.h" |
| 12 | 12 |
| 13 #ifndef V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ | 13 #ifndef V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ |
| 14 #define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ | 14 #define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ |
| 15 | 15 |
| 16 namespace v8 { | 16 namespace v8 { |
| 17 namespace internal { | 17 namespace internal { |
| 18 | 18 |
| 19 #ifdef V8_INTERPRETED_REGEXP | 19 #ifdef V8_INTERPRETED_REGEXP |
| 20 | 20 |
| 21 void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte, | 21 void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte, |
| 22 uint32_t twenty_four_bits) { | 22 uint32_t twenty_four_bits) { |
| 23 uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte); | 23 uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte); |
| 24 ASSERT(pc_ <= buffer_.length()); | 24 DCHECK(pc_ <= buffer_.length()); |
| 25 if (pc_ + 3 >= buffer_.length()) { | 25 if (pc_ + 3 >= buffer_.length()) { |
| 26 Expand(); | 26 Expand(); |
| 27 } | 27 } |
| 28 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; | 28 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; |
| 29 pc_ += 4; | 29 pc_ += 4; |
| 30 } | 30 } |
| 31 | 31 |
| 32 | 32 |
| 33 void RegExpMacroAssemblerIrregexp::Emit16(uint32_t word) { | 33 void RegExpMacroAssemblerIrregexp::Emit16(uint32_t word) { |
| 34 ASSERT(pc_ <= buffer_.length()); | 34 DCHECK(pc_ <= buffer_.length()); |
| 35 if (pc_ + 1 >= buffer_.length()) { | 35 if (pc_ + 1 >= buffer_.length()) { |
| 36 Expand(); | 36 Expand(); |
| 37 } | 37 } |
| 38 *reinterpret_cast<uint16_t*>(buffer_.start() + pc_) = word; | 38 *reinterpret_cast<uint16_t*>(buffer_.start() + pc_) = word; |
| 39 pc_ += 2; | 39 pc_ += 2; |
| 40 } | 40 } |
| 41 | 41 |
| 42 | 42 |
| 43 void RegExpMacroAssemblerIrregexp::Emit8(uint32_t word) { | 43 void RegExpMacroAssemblerIrregexp::Emit8(uint32_t word) { |
| 44 ASSERT(pc_ <= buffer_.length()); | 44 DCHECK(pc_ <= buffer_.length()); |
| 45 if (pc_ == buffer_.length()) { | 45 if (pc_ == buffer_.length()) { |
| 46 Expand(); | 46 Expand(); |
| 47 } | 47 } |
| 48 *reinterpret_cast<unsigned char*>(buffer_.start() + pc_) = word; | 48 *reinterpret_cast<unsigned char*>(buffer_.start() + pc_) = word; |
| 49 pc_ += 1; | 49 pc_ += 1; |
| 50 } | 50 } |
| 51 | 51 |
| 52 | 52 |
| 53 void RegExpMacroAssemblerIrregexp::Emit32(uint32_t word) { | 53 void RegExpMacroAssemblerIrregexp::Emit32(uint32_t word) { |
| 54 ASSERT(pc_ <= buffer_.length()); | 54 DCHECK(pc_ <= buffer_.length()); |
| 55 if (pc_ + 3 >= buffer_.length()) { | 55 if (pc_ + 3 >= buffer_.length()) { |
| 56 Expand(); | 56 Expand(); |
| 57 } | 57 } |
| 58 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; | 58 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; |
| 59 pc_ += 4; | 59 pc_ += 4; |
| 60 } | 60 } |
| 61 | 61 |
| 62 #endif // V8_INTERPRETED_REGEXP | 62 #endif // V8_INTERPRETED_REGEXP |
| 63 | 63 |
| 64 } } // namespace v8::internal | 64 } } // namespace v8::internal |
| 65 | 65 |
| 66 #endif // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ | 66 #endif // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ |
| OLD | NEW |