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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_ARM64 | 7 #if V8_TARGET_ARCH_ARM64 |
8 | 8 |
9 #include "src/ic/call-optimization.h" | 9 #include "src/ic/call-optimization.h" |
10 #include "src/ic/handler-compiler.h" | 10 #include "src/ic/handler-compiler.h" |
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753 DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); | 753 DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
754 | 754 |
755 // Preserve the receiver register explicitly whenever it is different from the | 755 // Preserve the receiver register explicitly whenever it is different from the |
756 // holder and it is needed should the interceptor return without any result. | 756 // holder and it is needed should the interceptor return without any result. |
757 // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD | 757 // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD |
758 // case might cause a miss during the prototype check. | 758 // case might cause a miss during the prototype check. |
759 bool must_perform_prototype_check = | 759 bool must_perform_prototype_check = |
760 !holder().is_identical_to(it->GetHolder<JSObject>()); | 760 !holder().is_identical_to(it->GetHolder<JSObject>()); |
761 bool must_preserve_receiver_reg = | 761 bool must_preserve_receiver_reg = |
762 !receiver().is(holder_reg) && | 762 !receiver().is(holder_reg) && |
763 (it->property_kind() == LookupIterator::ACCESSOR || | 763 (it->state() == LookupIterator::ACCESSOR || must_perform_prototype_check); |
764 must_perform_prototype_check); | |
765 | 764 |
766 // Save necessary data before invoking an interceptor. | 765 // Save necessary data before invoking an interceptor. |
767 // Requires a frame to make GC aware of pushed pointers. | 766 // Requires a frame to make GC aware of pushed pointers. |
768 { | 767 { |
769 FrameScope frame_scope(masm(), StackFrame::INTERNAL); | 768 FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
770 if (must_preserve_receiver_reg) { | 769 if (must_preserve_receiver_reg) { |
771 __ Push(receiver(), holder_reg, this->name()); | 770 __ Push(receiver(), holder_reg, this->name()); |
772 } else { | 771 } else { |
773 __ Push(holder_reg, this->name()); | 772 __ Push(holder_reg, this->name()); |
774 } | 773 } |
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838 // Return the generated code. | 837 // Return the generated code. |
839 return GetCode(kind(), Code::FAST, name); | 838 return GetCode(kind(), Code::FAST, name); |
840 } | 839 } |
841 | 840 |
842 | 841 |
843 #undef __ | 842 #undef __ |
844 } | 843 } |
845 } // namespace v8::internal | 844 } // namespace v8::internal |
846 | 845 |
847 #endif // V8_TARGET_ARCH_IA32 | 846 #endif // V8_TARGET_ARCH_IA32 |
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