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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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/compiler/ast-graph-builder.h" | 5 #include "src/compiler/ast-graph-builder.h" |
| 6 | 6 |
| 7 #include "src/compiler.h" | 7 #include "src/compiler.h" |
| 8 #include "src/compiler/ast-loop-assignment-analyzer.h" | 8 #include "src/compiler/ast-loop-assignment-analyzer.h" |
| 9 #include "src/compiler/control-builders.h" | 9 #include "src/compiler/control-builders.h" |
| 10 #include "src/compiler/js-type-feedback.h" | 10 #include "src/compiler/js-type-feedback.h" |
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| 441 execution_context_(nullptr), | 441 execution_context_(nullptr), |
| 442 try_catch_nesting_level_(0), | 442 try_catch_nesting_level_(0), |
| 443 try_nesting_level_(0), | 443 try_nesting_level_(0), |
| 444 input_buffer_size_(0), | 444 input_buffer_size_(0), |
| 445 input_buffer_(nullptr), | 445 input_buffer_(nullptr), |
| 446 exit_controls_(local_zone), | 446 exit_controls_(local_zone), |
| 447 loop_assignment_analysis_(loop), | 447 loop_assignment_analysis_(loop), |
| 448 state_values_cache_(jsgraph), | 448 state_values_cache_(jsgraph), |
| 449 liveness_analyzer_(static_cast<size_t>(info->scope()->num_stack_slots()), | 449 liveness_analyzer_(static_cast<size_t>(info->scope()->num_stack_slots()), |
| 450 local_zone), | 450 local_zone), |
| 451 frame_state_function_info_(common()->CreateFrameStateFunctionInfo( |
| 452 FrameStateType::kJavaScriptFunction, |
| 453 info->num_parameters_including_this(), |
| 454 info->scope()->num_stack_slots(), info->shared_info())), |
| 451 js_type_feedback_(js_type_feedback) { | 455 js_type_feedback_(js_type_feedback) { |
| 452 InitializeAstVisitor(info->isolate(), local_zone); | 456 InitializeAstVisitor(info->isolate(), local_zone); |
| 453 } | 457 } |
| 454 | 458 |
| 455 | 459 |
| 456 Node* AstGraphBuilder::GetFunctionClosureForContext() { | 460 Node* AstGraphBuilder::GetFunctionClosureForContext() { |
| 457 Scope* declaration_scope = current_scope()->DeclarationScope(); | 461 Scope* declaration_scope = current_scope()->DeclarationScope(); |
| 458 if (declaration_scope->is_script_scope() || | 462 if (declaration_scope->is_script_scope() || |
| 459 declaration_scope->is_module_scope()) { | 463 declaration_scope->is_module_scope()) { |
| 460 // Contexts nested in the native context have a canonical empty function as | 464 // Contexts nested in the native context have a canonical empty function as |
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| 862 BailoutId ast_id, OutputFrameStateCombine combine) { | 866 BailoutId ast_id, OutputFrameStateCombine combine) { |
| 863 if (!builder()->info()->is_deoptimization_enabled()) { | 867 if (!builder()->info()->is_deoptimization_enabled()) { |
| 864 return builder()->jsgraph()->EmptyFrameState(); | 868 return builder()->jsgraph()->EmptyFrameState(); |
| 865 } | 869 } |
| 866 | 870 |
| 867 UpdateStateValues(¶meters_node_, 0, parameters_count()); | 871 UpdateStateValues(¶meters_node_, 0, parameters_count()); |
| 868 UpdateStateValuesWithCache(&locals_node_, parameters_count(), locals_count()); | 872 UpdateStateValuesWithCache(&locals_node_, parameters_count(), locals_count()); |
| 869 UpdateStateValues(&stack_node_, parameters_count() + locals_count(), | 873 UpdateStateValues(&stack_node_, parameters_count() + locals_count(), |
| 870 stack_height()); | 874 stack_height()); |
| 871 | 875 |
| 872 const Operator* op = common()->FrameState(JS_FRAME, ast_id, combine, | 876 const Operator* op = common()->FrameState( |
| 873 builder()->info()->shared_info()); | 877 ast_id, combine, builder()->frame_state_function_info()); |
| 874 | 878 |
| 875 Node* result = graph()->NewNode(op, parameters_node_, locals_node_, | 879 Node* result = graph()->NewNode(op, parameters_node_, locals_node_, |
| 876 stack_node_, builder()->current_context(), | 880 stack_node_, builder()->current_context(), |
| 877 builder()->GetFunctionClosure(), | 881 builder()->GetFunctionClosure(), |
| 878 builder()->graph()->start()); | 882 builder()->graph()->start()); |
| 879 | 883 |
| 880 DCHECK(IsLivenessBlockConsistent()); | 884 DCHECK(IsLivenessBlockConsistent()); |
| 881 if (liveness_block() != nullptr) { | 885 if (liveness_block() != nullptr) { |
| 882 liveness_block()->Checkpoint(result); | 886 liveness_block()->Checkpoint(result); |
| 883 } | 887 } |
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| 4115 // Phi does not exist yet, introduce one. | 4119 // Phi does not exist yet, introduce one. |
| 4116 value = NewPhi(inputs, value, control); | 4120 value = NewPhi(inputs, value, control); |
| 4117 value->ReplaceInput(inputs - 1, other); | 4121 value->ReplaceInput(inputs - 1, other); |
| 4118 } | 4122 } |
| 4119 return value; | 4123 return value; |
| 4120 } | 4124 } |
| 4121 | 4125 |
| 4122 } // namespace compiler | 4126 } // namespace compiler |
| 4123 } // namespace internal | 4127 } // namespace internal |
| 4124 } // namespace v8 | 4128 } // namespace v8 |
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