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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/assembler-inl.h" | 7 #include "src/assembler-inl.h" |
| 8 #include "src/ast/compile-time-value.h" | 8 #include "src/ast/compile-time-value.h" |
| 9 #include "src/ast/scopes.h" | 9 #include "src/ast/scopes.h" |
| 10 #include "src/builtins/builtins-constructor.h" | 10 #include "src/builtins/builtins-constructor.h" |
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| 183 __ Push(info->scope()->scope_info()); | 183 __ Push(info->scope()->scope_info()); |
| 184 __ CallRuntime(Runtime::kNewScriptContext); | 184 __ CallRuntime(Runtime::kNewScriptContext); |
| 185 PrepareForBailoutForId(BailoutId::ScriptContext(), | 185 PrepareForBailoutForId(BailoutId::ScriptContext(), |
| 186 BailoutState::TOS_REGISTER); | 186 BailoutState::TOS_REGISTER); |
| 187 // The new target value is not used, clobbering is safe. | 187 // The new target value is not used, clobbering is safe. |
| 188 DCHECK_NULL(info->scope()->new_target_var()); | 188 DCHECK_NULL(info->scope()->new_target_var()); |
| 189 } else { | 189 } else { |
| 190 if (info->scope()->new_target_var() != nullptr) { | 190 if (info->scope()->new_target_var() != nullptr) { |
| 191 __ Push(rdx); // Preserve new target. | 191 __ Push(rdx); // Preserve new target. |
| 192 } | 192 } |
| 193 if (slots <= | 193 if (slots <= ConstructorBuiltins::MaximumFunctionContextSlots()) { |
| 194 ConstructorBuiltinsAssembler::MaximumFunctionContextSlots()) { | |
| 195 Callable callable = CodeFactory::FastNewFunctionContext( | 194 Callable callable = CodeFactory::FastNewFunctionContext( |
| 196 isolate(), info->scope()->scope_type()); | 195 isolate(), info->scope()->scope_type()); |
| 197 __ Set(FastNewFunctionContextDescriptor::SlotsRegister(), slots); | 196 __ Set(FastNewFunctionContextDescriptor::SlotsRegister(), slots); |
| 198 __ Call(callable.code(), RelocInfo::CODE_TARGET); | 197 __ Call(callable.code(), RelocInfo::CODE_TARGET); |
| 199 // Result of the FastNewFunctionContext builtin is always in new space. | 198 // Result of the FastNewFunctionContext builtin is always in new space. |
| 200 need_write_barrier = false; | 199 need_write_barrier = false; |
| 201 } else { | 200 } else { |
| 202 __ Push(rdi); | 201 __ Push(rdi); |
| 203 __ Push(Smi::FromInt(info->scope()->scope_type())); | 202 __ Push(Smi::FromInt(info->scope()->scope_type())); |
| 204 __ CallRuntime(Runtime::kNewFunctionContext); | 203 __ CallRuntime(Runtime::kNewFunctionContext); |
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| 2695 DCHECK_EQ( | 2694 DCHECK_EQ( |
| 2696 isolate->builtins()->OnStackReplacement()->entry(), | 2695 isolate->builtins()->OnStackReplacement()->entry(), |
| 2697 Assembler::target_address_at(call_target_address, unoptimized_code)); | 2696 Assembler::target_address_at(call_target_address, unoptimized_code)); |
| 2698 return ON_STACK_REPLACEMENT; | 2697 return ON_STACK_REPLACEMENT; |
| 2699 } | 2698 } |
| 2700 | 2699 |
| 2701 } // namespace internal | 2700 } // namespace internal |
| 2702 } // namespace v8 | 2701 } // namespace v8 |
| 2703 | 2702 |
| 2704 #endif // V8_TARGET_ARCH_X64 | 2703 #endif // V8_TARGET_ARCH_X64 |
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