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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_MIPS64 | 7 #if V8_TARGET_ARCH_MIPS64 |
8 | 8 |
9 // Note on Mips implementation: | 9 // Note on Mips implementation: |
10 // | 10 // |
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194 } | 194 } |
195 | 195 |
196 bool function_in_register = true; | 196 bool function_in_register = true; |
197 | 197 |
198 // Possibly allocate a local context. | 198 // Possibly allocate a local context. |
199 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 199 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
200 if (heap_slots > 0) { | 200 if (heap_slots > 0) { |
201 Comment cmnt(masm_, "[ Allocate context"); | 201 Comment cmnt(masm_, "[ Allocate context"); |
202 // Argument to NewContext is the function, which is still in a1. | 202 // Argument to NewContext is the function, which is still in a1. |
203 bool need_write_barrier = true; | 203 bool need_write_barrier = true; |
204 if (FLAG_harmony_scoping && info->scope()->is_global_scope()) { | 204 if (FLAG_harmony_scoping && info->scope()->is_script_scope()) { |
205 __ push(a1); | 205 __ push(a1); |
206 __ Push(info->scope()->GetScopeInfo()); | 206 __ Push(info->scope()->GetScopeInfo()); |
207 __ CallRuntime(Runtime::kNewGlobalContext, 2); | 207 __ CallRuntime(Runtime::kNewScriptContext, 2); |
208 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) { | 208 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
209 FastNewContextStub stub(isolate(), heap_slots); | 209 FastNewContextStub stub(isolate(), heap_slots); |
210 __ CallStub(&stub); | 210 __ CallStub(&stub); |
211 // Result of FastNewContextStub is always in new space. | 211 // Result of FastNewContextStub is always in new space. |
212 need_write_barrier = false; | 212 need_write_barrier = false; |
213 } else { | 213 } else { |
214 __ push(a1); | 214 __ push(a1); |
215 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 215 __ CallRuntime(Runtime::kNewFunctionContext, 1); |
216 } | 216 } |
217 function_in_register = false; | 217 function_in_register = false; |
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917 | 917 |
918 | 918 |
919 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { | 919 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { |
920 Variable* variable = declaration->proxy()->var(); | 920 Variable* variable = declaration->proxy()->var(); |
921 DCHECK(variable->location() == Variable::CONTEXT); | 921 DCHECK(variable->location() == Variable::CONTEXT); |
922 DCHECK(variable->interface()->IsFrozen()); | 922 DCHECK(variable->interface()->IsFrozen()); |
923 Comment cmnt(masm_, "[ ModuleDeclaration"); | 923 Comment cmnt(masm_, "[ ModuleDeclaration"); |
924 EmitDebugCheckDeclarationContext(variable); | 924 EmitDebugCheckDeclarationContext(variable); |
925 | 925 |
926 // Load instance object. | 926 // Load instance object. |
927 __ LoadContext(a1, scope_->ContextChainLength(scope_->GlobalScope())); | 927 __ LoadContext(a1, scope_->ContextChainLength(scope_->ScriptScope())); |
928 __ ld(a1, ContextOperand(a1, variable->interface()->Index())); | 928 __ ld(a1, ContextOperand(a1, variable->interface()->Index())); |
929 __ ld(a1, ContextOperand(a1, Context::EXTENSION_INDEX)); | 929 __ ld(a1, ContextOperand(a1, Context::EXTENSION_INDEX)); |
930 | 930 |
931 // Assign it. | 931 // Assign it. |
932 __ sd(a1, ContextOperand(cp, variable->index())); | 932 __ sd(a1, ContextOperand(cp, variable->index())); |
933 // We know that we have written a module, which is not a smi. | 933 // We know that we have written a module, which is not a smi. |
934 __ RecordWriteContextSlot(cp, | 934 __ RecordWriteContextSlot(cp, |
935 Context::SlotOffset(variable->index()), | 935 Context::SlotOffset(variable->index()), |
936 a1, | 936 a1, |
937 a3, | 937 a3, |
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5040 } | 5040 } |
5041 | 5041 |
5042 | 5042 |
5043 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { | 5043 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { |
5044 __ ld(dst, ContextOperand(cp, context_index)); | 5044 __ ld(dst, ContextOperand(cp, context_index)); |
5045 } | 5045 } |
5046 | 5046 |
5047 | 5047 |
5048 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { | 5048 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { |
5049 Scope* declaration_scope = scope()->DeclarationScope(); | 5049 Scope* declaration_scope = scope()->DeclarationScope(); |
5050 if (declaration_scope->is_global_scope() || | 5050 if (declaration_scope->is_script_scope() || |
5051 declaration_scope->is_module_scope()) { | 5051 declaration_scope->is_module_scope()) { |
5052 // Contexts nested in the native context have a canonical empty function | 5052 // Contexts nested in the native context have a canonical empty function |
5053 // as their closure, not the anonymous closure containing the global | 5053 // as their closure, not the anonymous closure containing the global |
5054 // code. Pass a smi sentinel and let the runtime look up the empty | 5054 // code. Pass a smi sentinel and let the runtime look up the empty |
5055 // function. | 5055 // function. |
5056 __ li(at, Operand(Smi::FromInt(0))); | 5056 __ li(at, Operand(Smi::FromInt(0))); |
5057 } else if (declaration_scope->is_eval_scope()) { | 5057 } else if (declaration_scope->is_eval_scope()) { |
5058 // Contexts created by a call to eval have the same closure as the | 5058 // Contexts created by a call to eval have the same closure as the |
5059 // context calling eval, not the anonymous closure containing the eval | 5059 // context calling eval, not the anonymous closure containing the eval |
5060 // code. Fetch it from the context. | 5060 // code. Fetch it from the context. |
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5244 Assembler::target_address_at(pc_immediate_load_address)) == | 5244 Assembler::target_address_at(pc_immediate_load_address)) == |
5245 reinterpret_cast<uint64_t>( | 5245 reinterpret_cast<uint64_t>( |
5246 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5246 isolate->builtins()->OsrAfterStackCheck()->entry())); |
5247 return OSR_AFTER_STACK_CHECK; | 5247 return OSR_AFTER_STACK_CHECK; |
5248 } | 5248 } |
5249 | 5249 |
5250 | 5250 |
5251 } } // namespace v8::internal | 5251 } } // namespace v8::internal |
5252 | 5252 |
5253 #endif // V8_TARGET_ARCH_MIPS64 | 5253 #endif // V8_TARGET_ARCH_MIPS64 |
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