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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_ARM | 7 #if V8_TARGET_ARCH_ARM |
| 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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| 188 } | 188 } |
| 189 | 189 |
| 190 bool function_in_register = true; | 190 bool function_in_register = true; |
| 191 | 191 |
| 192 // Possibly allocate a local context. | 192 // Possibly allocate a local context. |
| 193 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 193 int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
| 194 if (heap_slots > 0) { | 194 if (heap_slots > 0) { |
| 195 // Argument to NewContext is the function, which is still in r1. | 195 // Argument to NewContext is the function, which is still in r1. |
| 196 Comment cmnt(masm_, "[ Allocate context"); | 196 Comment cmnt(masm_, "[ Allocate context"); |
| 197 bool need_write_barrier = true; | 197 bool need_write_barrier = true; |
| 198 if (FLAG_harmony_scoping && info->scope()->is_global_scope()) { | 198 if (FLAG_harmony_scoping && info->scope()->is_script_scope()) { |
| 199 __ push(r1); | 199 __ push(r1); |
| 200 __ Push(info->scope()->GetScopeInfo()); | 200 __ Push(info->scope()->GetScopeInfo()); |
| 201 __ CallRuntime(Runtime::kNewGlobalContext, 2); | 201 __ CallRuntime(Runtime::kNewScriptContext, 2); |
| 202 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) { | 202 } else if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
| 203 FastNewContextStub stub(isolate(), heap_slots); | 203 FastNewContextStub stub(isolate(), heap_slots); |
| 204 __ CallStub(&stub); | 204 __ CallStub(&stub); |
| 205 // Result of FastNewContextStub is always in new space. | 205 // Result of FastNewContextStub is always in new space. |
| 206 need_write_barrier = false; | 206 need_write_barrier = false; |
| 207 } else { | 207 } else { |
| 208 __ push(r1); | 208 __ push(r1); |
| 209 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 209 __ CallRuntime(Runtime::kNewFunctionContext, 1); |
| 210 } | 210 } |
| 211 function_in_register = false; | 211 function_in_register = false; |
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| 930 | 930 |
| 931 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { | 931 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { |
| 932 Variable* variable = declaration->proxy()->var(); | 932 Variable* variable = declaration->proxy()->var(); |
| 933 DCHECK(variable->location() == Variable::CONTEXT); | 933 DCHECK(variable->location() == Variable::CONTEXT); |
| 934 DCHECK(variable->interface()->IsFrozen()); | 934 DCHECK(variable->interface()->IsFrozen()); |
| 935 | 935 |
| 936 Comment cmnt(masm_, "[ ModuleDeclaration"); | 936 Comment cmnt(masm_, "[ ModuleDeclaration"); |
| 937 EmitDebugCheckDeclarationContext(variable); | 937 EmitDebugCheckDeclarationContext(variable); |
| 938 | 938 |
| 939 // Load instance object. | 939 // Load instance object. |
| 940 __ LoadContext(r1, scope_->ContextChainLength(scope_->GlobalScope())); | 940 __ LoadContext(r1, scope_->ContextChainLength(scope_->ScriptScope())); |
| 941 __ ldr(r1, ContextOperand(r1, variable->interface()->Index())); | 941 __ ldr(r1, ContextOperand(r1, variable->interface()->Index())); |
| 942 __ ldr(r1, ContextOperand(r1, Context::EXTENSION_INDEX)); | 942 __ ldr(r1, ContextOperand(r1, Context::EXTENSION_INDEX)); |
| 943 | 943 |
| 944 // Assign it. | 944 // Assign it. |
| 945 __ str(r1, ContextOperand(cp, variable->index())); | 945 __ str(r1, ContextOperand(cp, variable->index())); |
| 946 // We know that we have written a module, which is not a smi. | 946 // We know that we have written a module, which is not a smi. |
| 947 __ RecordWriteContextSlot(cp, | 947 __ RecordWriteContextSlot(cp, |
| 948 Context::SlotOffset(variable->index()), | 948 Context::SlotOffset(variable->index()), |
| 949 r1, | 949 r1, |
| 950 r3, | 950 r3, |
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| 5064 } | 5064 } |
| 5065 | 5065 |
| 5066 | 5066 |
| 5067 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { | 5067 void FullCodeGenerator::LoadContextField(Register dst, int context_index) { |
| 5068 __ ldr(dst, ContextOperand(cp, context_index)); | 5068 __ ldr(dst, ContextOperand(cp, context_index)); |
| 5069 } | 5069 } |
| 5070 | 5070 |
| 5071 | 5071 |
| 5072 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { | 5072 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { |
| 5073 Scope* declaration_scope = scope()->DeclarationScope(); | 5073 Scope* declaration_scope = scope()->DeclarationScope(); |
| 5074 if (declaration_scope->is_global_scope() || | 5074 if (declaration_scope->is_script_scope() || |
| 5075 declaration_scope->is_module_scope()) { | 5075 declaration_scope->is_module_scope()) { |
| 5076 // Contexts nested in the native context have a canonical empty function | 5076 // Contexts nested in the native context have a canonical empty function |
| 5077 // as their closure, not the anonymous closure containing the global | 5077 // as their closure, not the anonymous closure containing the global |
| 5078 // code. Pass a smi sentinel and let the runtime look up the empty | 5078 // code. Pass a smi sentinel and let the runtime look up the empty |
| 5079 // function. | 5079 // function. |
| 5080 __ mov(ip, Operand(Smi::FromInt(0))); | 5080 __ mov(ip, Operand(Smi::FromInt(0))); |
| 5081 } else if (declaration_scope->is_eval_scope()) { | 5081 } else if (declaration_scope->is_eval_scope()) { |
| 5082 // Contexts created by a call to eval have the same closure as the | 5082 // Contexts created by a call to eval have the same closure as the |
| 5083 // context calling eval, not the anonymous closure containing the eval | 5083 // context calling eval, not the anonymous closure containing the eval |
| 5084 // code. Fetch it from the context. | 5084 // code. Fetch it from the context. |
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| 5327 | 5327 |
| 5328 DCHECK(interrupt_address == | 5328 DCHECK(interrupt_address == |
| 5329 isolate->builtins()->OsrAfterStackCheck()->entry()); | 5329 isolate->builtins()->OsrAfterStackCheck()->entry()); |
| 5330 return OSR_AFTER_STACK_CHECK; | 5330 return OSR_AFTER_STACK_CHECK; |
| 5331 } | 5331 } |
| 5332 | 5332 |
| 5333 | 5333 |
| 5334 } } // namespace v8::internal | 5334 } } // namespace v8::internal |
| 5335 | 5335 |
| 5336 #endif // V8_TARGET_ARCH_ARM | 5336 #endif // V8_TARGET_ARCH_ARM |
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