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Issue 716833002: Various clean-ups after top-level lexical declarations are done. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 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 // 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_IA32 7 #if V8_TARGET_ARCH_IA32
8 8
9 #include "src/code-factory.h" 9 #include "src/code-factory.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
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181 } 181 }
182 182
183 bool function_in_register = true; 183 bool function_in_register = true;
184 184
185 // Possibly allocate a local context. 185 // Possibly allocate a local context.
186 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 186 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
187 if (heap_slots > 0) { 187 if (heap_slots > 0) {
188 Comment cmnt(masm_, "[ Allocate context"); 188 Comment cmnt(masm_, "[ Allocate context");
189 bool need_write_barrier = true; 189 bool need_write_barrier = true;
190 // Argument to NewContext is the function, which is still in edi. 190 // Argument to NewContext is the function, which is still in edi.
191 if (FLAG_harmony_scoping && info->scope()->is_global_scope()) { 191 if (FLAG_harmony_scoping && info->scope()->is_script_scope()) {
192 __ push(edi); 192 __ push(edi);
193 __ Push(info->scope()->GetScopeInfo()); 193 __ Push(info->scope()->GetScopeInfo());
194 __ CallRuntime(Runtime::kNewGlobalContext, 2); 194 __ CallRuntime(Runtime::kNewScriptContext, 2);
195 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) { 195 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) {
196 FastNewContextStub stub(isolate(), heap_slots); 196 FastNewContextStub stub(isolate(), heap_slots);
197 __ CallStub(&stub); 197 __ CallStub(&stub);
198 // Result of FastNewContextStub is always in new space. 198 // Result of FastNewContextStub is always in new space.
199 need_write_barrier = false; 199 need_write_barrier = false;
200 } else { 200 } else {
201 __ push(edi); 201 __ push(edi);
202 __ CallRuntime(Runtime::kNewFunctionContext, 1); 202 __ CallRuntime(Runtime::kNewFunctionContext, 1);
203 } 203 }
204 function_in_register = false; 204 function_in_register = false;
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865 865
866 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { 866 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) {
867 Variable* variable = declaration->proxy()->var(); 867 Variable* variable = declaration->proxy()->var();
868 DCHECK(variable->location() == Variable::CONTEXT); 868 DCHECK(variable->location() == Variable::CONTEXT);
869 DCHECK(variable->interface()->IsFrozen()); 869 DCHECK(variable->interface()->IsFrozen());
870 870
871 Comment cmnt(masm_, "[ ModuleDeclaration"); 871 Comment cmnt(masm_, "[ ModuleDeclaration");
872 EmitDebugCheckDeclarationContext(variable); 872 EmitDebugCheckDeclarationContext(variable);
873 873
874 // Load instance object. 874 // Load instance object.
875 __ LoadContext(eax, scope_->ContextChainLength(scope_->GlobalScope())); 875 __ LoadContext(eax, scope_->ContextChainLength(scope_->ScriptScope()));
876 __ mov(eax, ContextOperand(eax, variable->interface()->Index())); 876 __ mov(eax, ContextOperand(eax, variable->interface()->Index()));
877 __ mov(eax, ContextOperand(eax, Context::EXTENSION_INDEX)); 877 __ mov(eax, ContextOperand(eax, Context::EXTENSION_INDEX));
878 878
879 // Assign it. 879 // Assign it.
880 __ mov(ContextOperand(esi, variable->index()), eax); 880 __ mov(ContextOperand(esi, variable->index()), eax);
881 // We know that we have written a module, which is not a smi. 881 // We know that we have written a module, which is not a smi.
882 __ RecordWriteContextSlot(esi, 882 __ RecordWriteContextSlot(esi,
883 Context::SlotOffset(variable->index()), 883 Context::SlotOffset(variable->index()),
884 eax, 884 eax,
885 ecx, 885 ecx,
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5024 } 5024 }
5025 5025
5026 5026
5027 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { 5027 void FullCodeGenerator::LoadContextField(Register dst, int context_index) {
5028 __ mov(dst, ContextOperand(esi, context_index)); 5028 __ mov(dst, ContextOperand(esi, context_index));
5029 } 5029 }
5030 5030
5031 5031
5032 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { 5032 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() {
5033 Scope* declaration_scope = scope()->DeclarationScope(); 5033 Scope* declaration_scope = scope()->DeclarationScope();
5034 if (declaration_scope->is_global_scope() || 5034 if (declaration_scope->is_script_scope() ||
5035 declaration_scope->is_module_scope()) { 5035 declaration_scope->is_module_scope()) {
5036 // Contexts nested in the native context have a canonical empty function 5036 // Contexts nested in the native context have a canonical empty function
5037 // as their closure, not the anonymous closure containing the global 5037 // as their closure, not the anonymous closure containing the global
5038 // code. Pass a smi sentinel and let the runtime look up the empty 5038 // code. Pass a smi sentinel and let the runtime look up the empty
5039 // function. 5039 // function.
5040 __ push(Immediate(Smi::FromInt(0))); 5040 __ push(Immediate(Smi::FromInt(0)));
5041 } else if (declaration_scope->is_eval_scope()) { 5041 } else if (declaration_scope->is_eval_scope()) {
5042 // Contexts nested inside eval code have the same closure as the context 5042 // Contexts nested inside eval code have the same closure as the context
5043 // calling eval, not the anonymous closure containing the eval code. 5043 // calling eval, not the anonymous closure containing the eval code.
5044 // Fetch it from the context. 5044 // Fetch it from the context.
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5218 DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), 5218 DCHECK_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
5219 Assembler::target_address_at(call_target_address, 5219 Assembler::target_address_at(call_target_address,
5220 unoptimized_code)); 5220 unoptimized_code));
5221 return OSR_AFTER_STACK_CHECK; 5221 return OSR_AFTER_STACK_CHECK;
5222 } 5222 }
5223 5223
5224 5224
5225 } } // namespace v8::internal 5225 } } // namespace v8::internal
5226 5226
5227 #endif // V8_TARGET_ARCH_IA32 5227 #endif // V8_TARGET_ARCH_IA32
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