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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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564 times_2, | 564 times_2, |
565 SeqTwoByteString::kHeaderSize)); | 565 SeqTwoByteString::kHeaderSize)); |
566 __ jmp(&done, Label::kNear); | 566 __ jmp(&done, Label::kNear); |
567 | 567 |
568 // ASCII string. | 568 // ASCII string. |
569 // Load the byte into the result register. | 569 // Load the byte into the result register. |
570 __ bind(&ascii); | 570 __ bind(&ascii); |
571 __ movzxbl(result, FieldOperand(string, | 571 __ movzxbl(result, FieldOperand(string, |
572 index, | 572 index, |
573 times_1, | 573 times_1, |
574 SeqAsciiString::kHeaderSize)); | 574 SeqOneByteString::kHeaderSize)); |
575 __ bind(&done); | 575 __ bind(&done); |
576 } | 576 } |
577 | 577 |
578 #undef __ | 578 #undef __ |
579 | 579 |
580 | 580 |
581 static const int kNoCodeAgeSequenceLength = 6; | 581 static const int kNoCodeAgeSequenceLength = 6; |
582 | 582 |
583 static byte* GetNoCodeAgeSequence(uint32_t* length) { | 583 static byte* GetNoCodeAgeSequence(uint32_t* length) { |
584 static bool initialized = false; | 584 static bool initialized = false; |
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658 CodePatcher patcher(sequence, young_length); | 658 CodePatcher patcher(sequence, young_length); |
659 patcher.masm()->call(stub->instruction_start()); | 659 patcher.masm()->call(stub->instruction_start()); |
660 patcher.masm()->nop(); | 660 patcher.masm()->nop(); |
661 } | 661 } |
662 } | 662 } |
663 | 663 |
664 | 664 |
665 } } // namespace v8::internal | 665 } } // namespace v8::internal |
666 | 666 |
667 #endif // V8_TARGET_ARCH_X64 | 667 #endif // V8_TARGET_ARCH_X64 |
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