ager@chromium.org | 381abbb | 2009-02-25 13:23:22 +0000 | [diff] [blame] | 1 | // Copyright 2008-2009 the V8 project authors. All rights reserved. |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 28 | // A light-weight assembler for the Irregexp byte code. |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 29 | |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 30 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 31 | #include "v8.h" |
| 32 | #include "ast.h" |
| 33 | #include "bytecodes-irregexp.h" |
| 34 | |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 35 | #ifndef V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ |
| 36 | #define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 37 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 38 | namespace v8 { |
| 39 | namespace internal { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 40 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 41 | #ifdef V8_INTERPRETED_REGEXP |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 42 | |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 43 | void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte, |
| 44 | uint32_t twenty_four_bits) { |
| 45 | uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 46 | ASSERT(pc_ <= buffer_.length()); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 47 | if (pc_ + 3 >= buffer_.length()) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 48 | Expand(); |
| 49 | } |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 50 | *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; |
| 51 | pc_ += 4; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | |
| 55 | void RegExpMacroAssemblerIrregexp::Emit16(uint32_t word) { |
| 56 | ASSERT(pc_ <= buffer_.length()); |
| 57 | if (pc_ + 1 >= buffer_.length()) { |
| 58 | Expand(); |
| 59 | } |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 60 | *reinterpret_cast<uint16_t*>(buffer_.start() + pc_) = word; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 61 | pc_ += 2; |
| 62 | } |
| 63 | |
| 64 | |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 65 | void RegExpMacroAssemblerIrregexp::Emit8(uint32_t word) { |
| 66 | ASSERT(pc_ <= buffer_.length()); |
| 67 | if (pc_ == buffer_.length()) { |
| 68 | Expand(); |
| 69 | } |
| 70 | *reinterpret_cast<unsigned char*>(buffer_.start() + pc_) = word; |
| 71 | pc_ += 1; |
| 72 | } |
| 73 | |
| 74 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 75 | void RegExpMacroAssemblerIrregexp::Emit32(uint32_t word) { |
| 76 | ASSERT(pc_ <= buffer_.length()); |
| 77 | if (pc_ + 3 >= buffer_.length()) { |
| 78 | Expand(); |
| 79 | } |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 80 | *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 81 | pc_ += 4; |
| 82 | } |
| 83 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 84 | #endif // V8_INTERPRETED_REGEXP |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 85 | |
| 86 | } } // namespace v8::internal |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 87 | |
| 88 | #endif // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_ |