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Side by Side Diff: src/ic/arm64/handler-compiler-arm64.cc

Issue 2028983002: Introduce IsUndefined(Isolate*) and IsTheHole(Isolate*) (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebase master Created 4 years, 6 months ago
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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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103 } 103 }
104 104
105 105
106 // Generate code to check that a global property cell is empty. Create 106 // Generate code to check that a global property cell is empty. Create
107 // the property cell at compilation time if no cell exists for the 107 // the property cell at compilation time if no cell exists for the
108 // property. 108 // property.
109 void PropertyHandlerCompiler::GenerateCheckPropertyCell( 109 void PropertyHandlerCompiler::GenerateCheckPropertyCell(
110 MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name, 110 MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name,
111 Register scratch, Label* miss) { 111 Register scratch, Label* miss) {
112 Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name); 112 Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name);
113 DCHECK(cell->value()->IsTheHole()); 113 Isolate* isolate = masm->isolate();
114 Handle<WeakCell> weak_cell = masm->isolate()->factory()->NewWeakCell(cell); 114 DCHECK(cell->value()->IsTheHole(isolate));
115 Handle<WeakCell> weak_cell = isolate->factory()->NewWeakCell(cell);
115 __ LoadWeakValue(scratch, weak_cell, miss); 116 __ LoadWeakValue(scratch, weak_cell, miss);
116 __ Ldr(scratch, FieldMemOperand(scratch, PropertyCell::kValueOffset)); 117 __ Ldr(scratch, FieldMemOperand(scratch, PropertyCell::kValueOffset));
117 __ JumpIfNotRoot(scratch, Heap::kTheHoleValueRootIndex, miss); 118 __ JumpIfNotRoot(scratch, Heap::kTheHoleValueRootIndex, miss);
118 } 119 }
119 120
120 121
121 static void PushInterceptorArguments(MacroAssembler* masm, Register receiver, 122 static void PushInterceptorArguments(MacroAssembler* masm, Register receiver,
122 Register holder, Register name, 123 Register holder, Register name,
123 Handle<JSObject> holder_obj) { 124 Handle<JSObject> holder_obj) {
124 STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0); 125 STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0);
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190 break; 191 break;
191 case CallOptimization::kHolderNotFound: 192 case CallOptimization::kHolderNotFound:
192 UNREACHABLE(); 193 UNREACHABLE();
193 break; 194 break;
194 } 195 }
195 196
196 Isolate* isolate = masm->isolate(); 197 Isolate* isolate = masm->isolate();
197 Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); 198 Handle<CallHandlerInfo> api_call_info = optimization.api_call_info();
198 bool call_data_undefined = false; 199 bool call_data_undefined = false;
199 // Put call data in place. 200 // Put call data in place.
200 if (api_call_info->data()->IsUndefined()) { 201 if (api_call_info->data()->IsUndefined(isolate)) {
201 call_data_undefined = true; 202 call_data_undefined = true;
202 __ LoadRoot(data, Heap::kUndefinedValueRootIndex); 203 __ LoadRoot(data, Heap::kUndefinedValueRootIndex);
203 } else { 204 } else {
204 if (optimization.is_constant_call()) { 205 if (optimization.is_constant_call()) {
205 __ Ldr(data, 206 __ Ldr(data,
206 FieldMemOperand(callee, JSFunction::kSharedFunctionInfoOffset)); 207 FieldMemOperand(callee, JSFunction::kSharedFunctionInfoOffset));
207 __ Ldr(data, 208 __ Ldr(data,
208 FieldMemOperand(data, SharedFunctionInfo::kFunctionDataOffset)); 209 FieldMemOperand(data, SharedFunctionInfo::kFunctionDataOffset));
209 __ Ldr(data, 210 __ Ldr(data,
210 FieldMemOperand(data, FunctionTemplateInfo::kCallCodeOffset)); 211 FieldMemOperand(data, FunctionTemplateInfo::kCallCodeOffset));
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598 // Return the constant value. 599 // Return the constant value.
599 __ LoadObject(x0, value); 600 __ LoadObject(x0, value);
600 __ Ret(); 601 __ Ret();
601 } 602 }
602 603
603 void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( 604 void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup(
604 LookupIterator* it, Register holder_reg) { 605 LookupIterator* it, Register holder_reg) {
605 DCHECK(!AreAliased(receiver(), this->name(), scratch1(), scratch2(), 606 DCHECK(!AreAliased(receiver(), this->name(), scratch1(), scratch2(),
606 scratch3())); 607 scratch3()));
607 DCHECK(holder()->HasNamedInterceptor()); 608 DCHECK(holder()->HasNamedInterceptor());
608 DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); 609 DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined(isolate()));
609 610
610 // Compile the interceptor call, followed by inline code to load the 611 // Compile the interceptor call, followed by inline code to load the
611 // property from further up the prototype chain if the call fails. 612 // property from further up the prototype chain if the call fails.
612 // Check that the maps haven't changed. 613 // Check that the maps haven't changed.
613 DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); 614 DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1()));
614 615
615 // Preserve the receiver register explicitly whenever it is different from the 616 // Preserve the receiver register explicitly whenever it is different from the
616 // holder and it is needed should the interceptor return without any result. 617 // holder and it is needed should the interceptor return without any result.
617 // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD 618 // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD
618 // case might cause a miss during the prototype check. 619 // case might cause a miss during the prototype check.
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657 // Leave the internal frame. 658 // Leave the internal frame.
658 } 659 }
659 660
660 GenerateLoadPostInterceptor(it, holder_reg); 661 GenerateLoadPostInterceptor(it, holder_reg);
661 } 662 }
662 663
663 664
664 void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) { 665 void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) {
665 // Call the runtime system to load the interceptor. 666 // Call the runtime system to load the interceptor.
666 DCHECK(holder()->HasNamedInterceptor()); 667 DCHECK(holder()->HasNamedInterceptor());
667 DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); 668 DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined(isolate()));
668 PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(), 669 PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(),
669 holder()); 670 holder());
670 671
671 __ TailCallRuntime(Runtime::kLoadPropertyWithInterceptor); 672 __ TailCallRuntime(Runtime::kLoadPropertyWithInterceptor);
672 } 673 }
673 674
674 675
675 Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( 676 Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
676 Handle<JSObject> object, Handle<Name> name, Handle<AccessorInfo> callback, 677 Handle<JSObject> object, Handle<Name> name, Handle<AccessorInfo> callback,
677 LanguageMode language_mode) { 678 LanguageMode language_mode) {
678 ASM_LOCATION("NamedStoreHandlerCompiler::CompileStoreCallback"); 679 ASM_LOCATION("NamedStoreHandlerCompiler::CompileStoreCallback");
679 Register holder_reg = Frontend(name); 680 Register holder_reg = Frontend(name);
680 681
681 // Stub never generated for non-global objects that require access checks. 682 // Stub never generated for non-global objects that require access checks.
682 DCHECK(holder()->IsJSGlobalProxy() || !holder()->IsAccessCheckNeeded()); 683 DCHECK(holder()->IsJSGlobalProxy() || !holder()->IsAccessCheckNeeded());
683 684
684 // receiver() and holder_reg can alias. 685 // receiver() and holder_reg can alias.
685 DCHECK(!AreAliased(receiver(), scratch1(), scratch2(), value())); 686 DCHECK(!AreAliased(receiver(), scratch1(), scratch2(), value()));
686 DCHECK(!AreAliased(holder_reg, scratch1(), scratch2(), value())); 687 DCHECK(!AreAliased(holder_reg, scratch1(), scratch2(), value()));
687 // If the callback cannot leak, then push the callback directly, 688 // If the callback cannot leak, then push the callback directly,
688 // otherwise wrap it in a weak cell. 689 // otherwise wrap it in a weak cell.
689 if (callback->data()->IsUndefined() || callback->data()->IsSmi()) { 690 if (callback->data()->IsUndefined(isolate()) || callback->data()->IsSmi()) {
690 __ Mov(scratch1(), Operand(callback)); 691 __ Mov(scratch1(), Operand(callback));
691 } else { 692 } else {
692 Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback); 693 Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback);
693 __ Mov(scratch1(), Operand(cell)); 694 __ Mov(scratch1(), Operand(cell));
694 } 695 }
695 __ Mov(scratch2(), Operand(name)); 696 __ Mov(scratch2(), Operand(name));
696 __ Push(receiver(), holder_reg, scratch1(), scratch2(), value()); 697 __ Push(receiver(), holder_reg, scratch1(), scratch2(), value());
697 __ Push(Smi::FromInt(language_mode)); 698 __ Push(Smi::FromInt(language_mode));
698 699
699 // Do tail-call to the runtime system. 700 // Do tail-call to the runtime system.
700 __ TailCallRuntime(Runtime::kStoreCallbackProperty); 701 __ TailCallRuntime(Runtime::kStoreCallbackProperty);
701 702
702 // Return the generated code. 703 // Return the generated code.
703 return GetCode(kind(), name); 704 return GetCode(kind(), name);
704 } 705 }
705 706
706 707
707 #undef __ 708 #undef __
708 } // namespace internal 709 } // namespace internal
709 } // namespace v8 710 } // namespace v8
710 711
711 #endif // V8_TARGET_ARCH_IA32 712 #endif // V8_TARGET_ARCH_IA32
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