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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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