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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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273 if (i + 8 <= n) { | 273 if (i + 8 <= n) { |
274 uint64_t combined_chars = | 274 uint64_t combined_chars = |
275 (static_cast<uint64_t>(str[i + 0]) << 0) || | 275 (static_cast<uint64_t>(str[i + 0]) << 0) || |
276 (static_cast<uint64_t>(str[i + 1]) << 8) || | 276 (static_cast<uint64_t>(str[i + 1]) << 8) || |
277 (static_cast<uint64_t>(str[i + 2]) << 16) || | 277 (static_cast<uint64_t>(str[i + 2]) << 16) || |
278 (static_cast<uint64_t>(str[i + 3]) << 24) || | 278 (static_cast<uint64_t>(str[i + 3]) << 24) || |
279 (static_cast<uint64_t>(str[i + 4]) << 32) || | 279 (static_cast<uint64_t>(str[i + 4]) << 32) || |
280 (static_cast<uint64_t>(str[i + 5]) << 40) || | 280 (static_cast<uint64_t>(str[i + 5]) << 40) || |
281 (static_cast<uint64_t>(str[i + 6]) << 48) || | 281 (static_cast<uint64_t>(str[i + 6]) << 48) || |
282 (static_cast<uint64_t>(str[i + 7]) << 56); | 282 (static_cast<uint64_t>(str[i + 7]) << 56); |
283 __ movq(rax, combined_chars, RelocInfo::NONE); | 283 __ movq(rax, combined_chars, RelocInfo::NONE64); |
284 __ cmpq(rax, Operand(rbx, byte_offset + i)); | 284 __ cmpq(rax, Operand(rbx, byte_offset + i)); |
285 i += 8; | 285 i += 8; |
286 } else if (i + 4 <= n) { | 286 } else if (i + 4 <= n) { |
287 uint32_t combined_chars = | 287 uint32_t combined_chars = |
288 (static_cast<uint32_t>(str[i + 0]) << 0) || | 288 (static_cast<uint32_t>(str[i + 0]) << 0) || |
289 (static_cast<uint32_t>(str[i + 1]) << 8) || | 289 (static_cast<uint32_t>(str[i + 1]) << 8) || |
290 (static_cast<uint32_t>(str[i + 2]) << 16) || | 290 (static_cast<uint32_t>(str[i + 2]) << 16) || |
291 (static_cast<uint32_t>(str[i + 3]) << 24); | 291 (static_cast<uint32_t>(str[i + 3]) << 24); |
292 __ cmpl(Operand(rbx, byte_offset + i), Immediate(combined_chars)); | 292 __ cmpl(Operand(rbx, byte_offset + i), Immediate(combined_chars)); |
293 i += 4; | 293 i += 4; |
294 } else { | 294 } else { |
295 __ cmpb(Operand(rbx, byte_offset + i), | 295 __ cmpb(Operand(rbx, byte_offset + i), |
296 Immediate(static_cast<int8_t>(str[i]))); | 296 Immediate(static_cast<int8_t>(str[i]))); |
297 i++; | 297 i++; |
298 } | 298 } |
299 } else { | 299 } else { |
300 ASSERT(mode_ == UC16); | 300 ASSERT(mode_ == UC16); |
301 if (i + 4 <= n) { | 301 if (i + 4 <= n) { |
302 uint64_t combined_chars = *reinterpret_cast<const uint64_t*>(&str[i]); | 302 uint64_t combined_chars = *reinterpret_cast<const uint64_t*>(&str[i]); |
303 __ movq(rax, combined_chars, RelocInfo::NONE); | 303 __ movq(rax, combined_chars, RelocInfo::NONE64); |
304 __ cmpq(rax, | 304 __ cmpq(rax, |
305 Operand(rsi, rdi, times_1, byte_offset + i * sizeof(uc16))); | 305 Operand(rsi, rdi, times_1, byte_offset + i * sizeof(uc16))); |
306 i += 4; | 306 i += 4; |
307 } else if (i + 2 <= n) { | 307 } else if (i + 2 <= n) { |
308 uint32_t combined_chars = *reinterpret_cast<const uint32_t*>(&str[i]); | 308 uint32_t combined_chars = *reinterpret_cast<const uint32_t*>(&str[i]); |
309 __ cmpl(Operand(rsi, rdi, times_1, byte_offset + i * sizeof(uc16)), | 309 __ cmpl(Operand(rsi, rdi, times_1, byte_offset + i * sizeof(uc16)), |
310 Immediate(combined_chars)); | 310 Immediate(combined_chars)); |
311 i += 2; | 311 i += 2; |
312 } else { | 312 } else { |
313 __ movzxwl(rax, | 313 __ movzxwl(rax, |
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1535 } | 1535 } |
1536 } | 1536 } |
1537 | 1537 |
1538 #undef __ | 1538 #undef __ |
1539 | 1539 |
1540 #endif // V8_INTERPRETED_REGEXP | 1540 #endif // V8_INTERPRETED_REGEXP |
1541 | 1541 |
1542 }} // namespace v8::internal | 1542 }} // namespace v8::internal |
1543 | 1543 |
1544 #endif // V8_TARGET_ARCH_X64 | 1544 #endif // V8_TARGET_ARCH_X64 |
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