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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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4598 #endif | 4598 #endif |
4599 } | 4599 } |
4600 | 4600 |
4601 | 4601 |
4602 void MacroAssembler::EmitSeqStringSetCharCheck(Register string, | 4602 void MacroAssembler::EmitSeqStringSetCharCheck(Register string, |
4603 Register index, | 4603 Register index, |
4604 Register value, | 4604 Register value, |
4605 uint32_t encoding_mask) { | 4605 uint32_t encoding_mask) { |
4606 Label is_object; | 4606 Label is_object; |
4607 JumpIfNotSmi(string, &is_object); | 4607 JumpIfNotSmi(string, &is_object); |
4608 Throw(kNonObject); | 4608 Abort(kNonObject); |
4609 bind(&is_object); | 4609 bind(&is_object); |
4610 | 4610 |
4611 push(value); | 4611 push(value); |
4612 movp(value, FieldOperand(string, HeapObject::kMapOffset)); | 4612 movp(value, FieldOperand(string, HeapObject::kMapOffset)); |
4613 movzxbq(value, FieldOperand(value, Map::kInstanceTypeOffset)); | 4613 movzxbq(value, FieldOperand(value, Map::kInstanceTypeOffset)); |
4614 | 4614 |
4615 andb(value, Immediate(kStringRepresentationMask | kStringEncodingMask)); | 4615 andb(value, Immediate(kStringRepresentationMask | kStringEncodingMask)); |
4616 cmpq(value, Immediate(encoding_mask)); | 4616 cmpq(value, Immediate(encoding_mask)); |
4617 pop(value); | 4617 pop(value); |
4618 ThrowIf(not_equal, kUnexpectedStringType); | 4618 Check(equal, kUnexpectedStringType); |
4619 | 4619 |
4620 // The index is assumed to be untagged coming in, tag it to compare with the | 4620 // The index is assumed to be untagged coming in, tag it to compare with the |
4621 // string length without using a temp register, it is restored at the end of | 4621 // string length without using a temp register, it is restored at the end of |
4622 // this function. | 4622 // this function. |
4623 Integer32ToSmi(index, index); | 4623 Integer32ToSmi(index, index); |
4624 SmiCompare(index, FieldOperand(string, String::kLengthOffset)); | 4624 SmiCompare(index, FieldOperand(string, String::kLengthOffset)); |
4625 ThrowIf(greater_equal, kIndexIsTooLarge); | 4625 Check(less, kIndexIsTooLarge); |
4626 | 4626 |
4627 SmiCompare(index, Smi::FromInt(0)); | 4627 SmiCompare(index, Smi::FromInt(0)); |
4628 ThrowIf(less, kIndexIsNegative); | 4628 Check(greater_equal, kIndexIsNegative); |
4629 | 4629 |
4630 // Restore the index | 4630 // Restore the index |
4631 SmiToInteger32(index, index); | 4631 SmiToInteger32(index, index); |
4632 } | 4632 } |
4633 | 4633 |
4634 | 4634 |
4635 void MacroAssembler::PrepareCallCFunction(int num_arguments) { | 4635 void MacroAssembler::PrepareCallCFunction(int num_arguments) { |
4636 int frame_alignment = OS::ActivationFrameAlignment(); | 4636 int frame_alignment = OS::ActivationFrameAlignment(); |
4637 ASSERT(frame_alignment != 0); | 4637 ASSERT(frame_alignment != 0); |
4638 ASSERT(num_arguments >= 0); | 4638 ASSERT(num_arguments >= 0); |
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4993 j(equal, found); | 4993 j(equal, found); |
4994 movp(current, FieldOperand(current, Map::kPrototypeOffset)); | 4994 movp(current, FieldOperand(current, Map::kPrototypeOffset)); |
4995 CompareRoot(current, Heap::kNullValueRootIndex); | 4995 CompareRoot(current, Heap::kNullValueRootIndex); |
4996 j(not_equal, &loop_again); | 4996 j(not_equal, &loop_again); |
4997 } | 4997 } |
4998 | 4998 |
4999 | 4999 |
5000 } } // namespace v8::internal | 5000 } } // namespace v8::internal |
5001 | 5001 |
5002 #endif // V8_TARGET_ARCH_X64 | 5002 #endif // V8_TARGET_ARCH_X64 |
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