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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_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
| 8 | 8 |
| 9 // Note on Mips implementation: | 9 // Note on Mips implementation: |
| 10 // | 10 // |
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| 197 } | 197 } |
| 198 | 198 |
| 199 bool function_in_register = true; | 199 bool function_in_register = true; |
| 200 | 200 |
| 201 // Possibly allocate a local context. | 201 // Possibly allocate a local context. |
| 202 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 202 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
| 203 if (heap_slots > 0) { | 203 if (heap_slots > 0) { |
| 204 Comment cmnt(masm_, "[ Allocate context"); | 204 Comment cmnt(masm_, "[ Allocate context"); |
| 205 // Argument to NewContext is the function, which is still in a1. | 205 // Argument to NewContext is the function, which is still in a1. |
| 206 bool need_write_barrier = true; | 206 bool need_write_barrier = true; |
| 207 if (FLAG_harmony_scoping && info->scope()->is_global_scope()) { | 207 if (FLAG_harmony_scoping && info->scope()->is_script_scope()) { |
| 208 __ push(a1); | 208 __ push(a1); |
| 209 __ Push(info->scope()->GetScopeInfo()); | 209 __ Push(info->scope()->GetScopeInfo()); |
| 210 __ CallRuntime(Runtime::kNewGlobalContext, 2); | 210 __ CallRuntime(Runtime::kNewScriptContext, 2); |
| 211 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) { | 211 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
| 212 FastNewContextStub stub(isolate(), heap_slots); | 212 FastNewContextStub stub(isolate(), heap_slots); |
| 213 __ CallStub(&stub); | 213 __ CallStub(&stub); |
| 214 // Result of FastNewContextStub is always in new space. | 214 // Result of FastNewContextStub is always in new space. |
| 215 need_write_barrier = false; | 215 need_write_barrier = false; |
| 216 } else { | 216 } else { |
| 217 __ push(a1); | 217 __ push(a1); |
| 218 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 218 __ CallRuntime(Runtime::kNewFunctionContext, 1); |
| 219 } | 219 } |
| 220 function_in_register = false; | 220 function_in_register = false; |
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| 922 | 922 |
| 923 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { | 923 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { |
| 924 Variable* variable = declaration->proxy()->var(); | 924 Variable* variable = declaration->proxy()->var(); |
| 925 DCHECK(variable->location() == Variable::CONTEXT); | 925 DCHECK(variable->location() == Variable::CONTEXT); |
| 926 DCHECK(variable->interface()->IsFrozen()); | 926 DCHECK(variable->interface()->IsFrozen()); |
| 927 | 927 |
| 928 Comment cmnt(masm_, "[ ModuleDeclaration"); | 928 Comment cmnt(masm_, "[ ModuleDeclaration"); |
| 929 EmitDebugCheckDeclarationContext(variable); | 929 EmitDebugCheckDeclarationContext(variable); |
| 930 | 930 |
| 931 // Load instance object. | 931 // Load instance object. |
| 932 __ LoadContext(a1, scope_->ContextChainLength(scope_->GlobalScope())); | 932 __ LoadContext(a1, scope_->ContextChainLength(scope_->ScriptScope())); |
| 933 __ lw(a1, ContextOperand(a1, variable->interface()->Index())); | 933 __ lw(a1, ContextOperand(a1, variable->interface()->Index())); |
| 934 __ lw(a1, ContextOperand(a1, Context::EXTENSION_INDEX)); | 934 __ lw(a1, ContextOperand(a1, Context::EXTENSION_INDEX)); |
| 935 | 935 |
| 936 // Assign it. | 936 // Assign it. |
| 937 __ sw(a1, ContextOperand(cp, variable->index())); | 937 __ sw(a1, ContextOperand(cp, variable->index())); |
| 938 // We know that we have written a module, which is not a smi. | 938 // We know that we have written a module, which is not a smi. |
| 939 __ RecordWriteContextSlot(cp, | 939 __ RecordWriteContextSlot(cp, |
| 940 Context::SlotOffset(variable->index()), | 940 Context::SlotOffset(variable->index()), |
| 941 a1, | 941 a1, |
| 942 a3, | 942 a3, |
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| 5077 } | 5077 } |
| 5078 | 5078 |
| 5079 | 5079 |
| 5080 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { | 5080 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { |
| 5081 __ lw(dst, ContextOperand(cp, context_index)); | 5081 __ lw(dst, ContextOperand(cp, context_index)); |
| 5082 } | 5082 } |
| 5083 | 5083 |
| 5084 | 5084 |
| 5085 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { | 5085 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { |
| 5086 Scope* declaration_scope = scope()->DeclarationScope(); | 5086 Scope* declaration_scope = scope()->DeclarationScope(); |
| 5087 if (declaration_scope->is_global_scope() || | 5087 if (declaration_scope->is_script_scope() || |
| 5088 declaration_scope->is_module_scope()) { | 5088 declaration_scope->is_module_scope()) { |
| 5089 // Contexts nested in the native context have a canonical empty function | 5089 // Contexts nested in the native context have a canonical empty function |
| 5090 // as their closure, not the anonymous closure containing the global | 5090 // as their closure, not the anonymous closure containing the global |
| 5091 // code. Pass a smi sentinel and let the runtime look up the empty | 5091 // code. Pass a smi sentinel and let the runtime look up the empty |
| 5092 // function. | 5092 // function. |
| 5093 __ li(at, Operand(Smi::FromInt(0))); | 5093 __ li(at, Operand(Smi::FromInt(0))); |
| 5094 } else if (declaration_scope->is_eval_scope()) { | 5094 } else if (declaration_scope->is_eval_scope()) { |
| 5095 // Contexts created by a call to eval have the same closure as the | 5095 // Contexts created by a call to eval have the same closure as the |
| 5096 // context calling eval, not the anonymous closure containing the eval | 5096 // context calling eval, not the anonymous closure containing the eval |
| 5097 // code. Fetch it from the context. | 5097 // code. Fetch it from the context. |
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| 5279 Assembler::target_address_at(pc_immediate_load_address)) == | 5279 Assembler::target_address_at(pc_immediate_load_address)) == |
| 5280 reinterpret_cast<uint32_t>( | 5280 reinterpret_cast<uint32_t>( |
| 5281 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5281 isolate->builtins()->OsrAfterStackCheck()->entry())); |
| 5282 return OSR_AFTER_STACK_CHECK; | 5282 return OSR_AFTER_STACK_CHECK; |
| 5283 } | 5283 } |
| 5284 | 5284 |
| 5285 | 5285 |
| 5286 } } // namespace v8::internal | 5286 } } // namespace v8::internal |
| 5287 | 5287 |
| 5288 #endif // V8_TARGET_ARCH_MIPS | 5288 #endif // V8_TARGET_ARCH_MIPS |
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