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Issue 2281073002: Create ScopeInfos while analyzing the Scope chain (Closed)
Patch Set: updates Created 4 years, 3 months 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 #if V8_TARGET_ARCH_X64 5 #if V8_TARGET_ARCH_X64
6 6
7 #include "src/ast/scopes.h" 7 #include "src/ast/scopes.h"
8 #include "src/code-factory.h" 8 #include "src/code-factory.h"
9 #include "src/code-stubs.h" 9 #include "src/code-stubs.h"
10 #include "src/codegen.h" 10 #include "src/codegen.h"
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158 bool function_in_register = true; 158 bool function_in_register = true;
159 159
160 // Possibly allocate a local context. 160 // Possibly allocate a local context.
161 if (info->scope()->NeedsContext()) { 161 if (info->scope()->NeedsContext()) {
162 Comment cmnt(masm_, "[ Allocate context"); 162 Comment cmnt(masm_, "[ Allocate context");
163 bool need_write_barrier = true; 163 bool need_write_barrier = true;
164 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 164 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
165 // Argument to NewContext is the function, which is still in rdi. 165 // Argument to NewContext is the function, which is still in rdi.
166 if (info->scope()->is_script_scope()) { 166 if (info->scope()->is_script_scope()) {
167 __ Push(rdi); 167 __ Push(rdi);
168 __ Push(info->scope()->GetScopeInfo(info->isolate())); 168 __ Push(info->scope()->scope_info());
169 __ CallRuntime(Runtime::kNewScriptContext); 169 __ CallRuntime(Runtime::kNewScriptContext);
170 PrepareForBailoutForId(BailoutId::ScriptContext(), 170 PrepareForBailoutForId(BailoutId::ScriptContext(),
171 BailoutState::TOS_REGISTER); 171 BailoutState::TOS_REGISTER);
172 // The new target value is not used, clobbering is safe. 172 // The new target value is not used, clobbering is safe.
173 DCHECK_NULL(info->scope()->new_target_var()); 173 DCHECK_NULL(info->scope()->new_target_var());
174 } else { 174 } else {
175 if (info->scope()->new_target_var() != nullptr) { 175 if (info->scope()->new_target_var() != nullptr) {
176 __ Push(rdx); // Preserve new target. 176 __ Push(rdx); // Preserve new target.
177 } 177 }
178 FastNewFunctionContextStub stub(isolate()); 178 FastNewFunctionContextStub stub(isolate());
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3635 DCHECK_EQ( 3635 DCHECK_EQ(
3636 isolate->builtins()->OnStackReplacement()->entry(), 3636 isolate->builtins()->OnStackReplacement()->entry(),
3637 Assembler::target_address_at(call_target_address, unoptimized_code)); 3637 Assembler::target_address_at(call_target_address, unoptimized_code));
3638 return ON_STACK_REPLACEMENT; 3638 return ON_STACK_REPLACEMENT;
3639 } 3639 }
3640 3640
3641 } // namespace internal 3641 } // namespace internal
3642 } // namespace v8 3642 } // namespace v8
3643 3643
3644 #endif // V8_TARGET_ARCH_X64 3644 #endif // V8_TARGET_ARCH_X64
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