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Issue 11293168: Rename kAsciiStringTag to kOneByteStringTag (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years, 1 month ago
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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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3566 __ bind(&loop); 3566 __ bind(&loop);
3567 __ mov(string, FieldOperand(elements, 3567 __ mov(string, FieldOperand(elements,
3568 index, 3568 index,
3569 times_pointer_size, 3569 times_pointer_size,
3570 FixedArray::kHeaderSize)); 3570 FixedArray::kHeaderSize));
3571 __ JumpIfSmi(string, &bailout); 3571 __ JumpIfSmi(string, &bailout);
3572 __ mov(scratch, FieldOperand(string, HeapObject::kMapOffset)); 3572 __ mov(scratch, FieldOperand(string, HeapObject::kMapOffset));
3573 __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); 3573 __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
3574 __ and_(scratch, Immediate( 3574 __ and_(scratch, Immediate(
3575 kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask)); 3575 kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask));
3576 __ cmp(scratch, kStringTag | kAsciiStringTag | kSeqStringTag); 3576 __ cmp(scratch, kStringTag | kOneByteStringTag | kSeqStringTag);
3577 __ j(not_equal, &bailout); 3577 __ j(not_equal, &bailout);
3578 __ add(string_length, 3578 __ add(string_length,
3579 FieldOperand(string, SeqAsciiString::kLengthOffset)); 3579 FieldOperand(string, SeqAsciiString::kLengthOffset));
3580 __ j(overflow, &bailout); 3580 __ j(overflow, &bailout);
3581 __ add(index, Immediate(1)); 3581 __ add(index, Immediate(1));
3582 __ cmp(index, array_length); 3582 __ cmp(index, array_length);
3583 __ j(less, &loop); 3583 __ j(less, &loop);
3584 3584
3585 // If array_length is 1, return elements[0], a string. 3585 // If array_length is 1, return elements[0], a string.
3586 __ cmp(array_length, 1); 3586 __ cmp(array_length, 1);
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4515 *stack_depth = 0; 4515 *stack_depth = 0;
4516 *context_length = 0; 4516 *context_length = 0;
4517 return previous_; 4517 return previous_;
4518 } 4518 }
4519 4519
4520 #undef __ 4520 #undef __
4521 4521
4522 } } // namespace v8::internal 4522 } } // namespace v8::internal
4523 4523
4524 #endif // V8_TARGET_ARCH_IA32 4524 #endif // V8_TARGET_ARCH_IA32
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