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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 #if V8_TARGET_ARCH_ARM64 | 5 #if V8_TARGET_ARCH_ARM64 |
6 | 6 |
7 #include "src/ic/handler-compiler.h" | 7 #include "src/ic/handler-compiler.h" |
8 | 8 |
9 #include "src/api-arguments.h" | 9 #include "src/api-arguments.h" |
10 #include "src/field-type.h" | 10 #include "src/field-type.h" |
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625 } | 625 } |
626 } | 626 } |
627 | 627 |
628 | 628 |
629 void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { | 629 void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { |
630 // Return the constant value. | 630 // Return the constant value. |
631 __ LoadObject(x0, value); | 631 __ LoadObject(x0, value); |
632 __ Ret(); | 632 __ Ret(); |
633 } | 633 } |
634 | 634 |
635 | |
636 void NamedLoadHandlerCompiler::GenerateLoadCallback( | |
637 Register reg, Handle<AccessorInfo> callback) { | |
638 DCHECK(!AreAliased(scratch2(), scratch3(), scratch4(), receiver())); | |
639 DCHECK(!AreAliased(scratch2(), scratch3(), scratch4(), reg)); | |
640 | |
641 // Build v8::PropertyCallbackInfo::args_ array on the stack and push property | |
642 // name below the exit frame to make GC aware of them. | |
643 STATIC_ASSERT(PropertyCallbackArguments::kShouldThrowOnErrorIndex == 0); | |
644 STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 1); | |
645 STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 2); | |
646 STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 3); | |
647 STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 4); | |
648 STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 5); | |
649 STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 6); | |
650 STATIC_ASSERT(PropertyCallbackArguments::kArgsLength == 7); | |
651 | |
652 __ Push(receiver()); | |
653 | |
654 Handle<Object> data(callback->data(), isolate()); | |
655 if (data->IsUndefined() || data->IsSmi()) { | |
656 __ Mov(scratch3(), Operand(data)); | |
657 } else { | |
658 Handle<WeakCell> cell = | |
659 isolate()->factory()->NewWeakCell(Handle<HeapObject>::cast(data)); | |
660 // The callback is alive if this instruction is executed, | |
661 // so the weak cell is not cleared and points to data. | |
662 __ GetWeakValue(scratch3(), cell); | |
663 } | |
664 __ LoadRoot(scratch4(), Heap::kUndefinedValueRootIndex); | |
665 __ Mov(scratch2(), Operand(ExternalReference::isolate_address(isolate()))); | |
666 __ Push(scratch3(), scratch4(), scratch4(), scratch2(), reg); | |
667 __ Push(Smi::FromInt(0)); // should_throw_on_error -> false | |
668 __ Push(name()); | |
669 | |
670 // Abi for CallApiGetter. | |
671 Register getter_address_reg = x2; | |
672 | |
673 // Set up the call. | |
674 Address getter_address = v8::ToCData<Address>(callback->getter()); | |
675 ApiFunction fun(getter_address); | |
676 ExternalReference::Type type = ExternalReference::DIRECT_GETTER_CALL; | |
677 ExternalReference ref = ExternalReference(&fun, type, isolate()); | |
678 __ Mov(getter_address_reg, ref); | |
679 | |
680 CallApiGetterStub stub(isolate()); | |
681 __ TailCallStub(&stub); | |
682 } | |
683 | |
684 | |
685 void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( | 635 void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( |
686 LookupIterator* it, Register holder_reg) { | 636 LookupIterator* it, Register holder_reg) { |
687 DCHECK(!AreAliased(receiver(), this->name(), scratch1(), scratch2(), | 637 DCHECK(!AreAliased(receiver(), this->name(), scratch1(), scratch2(), |
688 scratch3())); | 638 scratch3())); |
689 DCHECK(holder()->HasNamedInterceptor()); | 639 DCHECK(holder()->HasNamedInterceptor()); |
690 DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); | 640 DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
691 | 641 |
692 // Compile the interceptor call, followed by inline code to load the | 642 // Compile the interceptor call, followed by inline code to load the |
693 // property from further up the prototype chain if the call fails. | 643 // property from further up the prototype chain if the call fails. |
694 // Check that the maps haven't changed. | 644 // Check that the maps haven't changed. |
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784 // Return the generated code. | 734 // Return the generated code. |
785 return GetCode(kind(), name); | 735 return GetCode(kind(), name); |
786 } | 736 } |
787 | 737 |
788 | 738 |
789 #undef __ | 739 #undef __ |
790 } // namespace internal | 740 } // namespace internal |
791 } // namespace v8 | 741 } // namespace v8 |
792 | 742 |
793 #endif // V8_TARGET_ARCH_IA32 | 743 #endif // V8_TARGET_ARCH_IA32 |
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