Line data    Source code

       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
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_COMPILER_JS_INLINING_H_
       6             : #define V8_COMPILER_JS_INLINING_H_
       7             : 
       8             : #include "src/compiler/graph-reducer.h"
       9             : #include "src/compiler/js-graph.h"
      10             : 
      11             : namespace v8 {
      12             : namespace internal {
      13             : 
      14             : class BailoutId;
      15             : class OptimizedCompilationInfo;
      16             : 
      17             : namespace compiler {
      18             : 
      19             : class SourcePositionTable;
      20             : 
      21             : // The JSInliner provides the core graph inlining machinery. Note that this
      22             : // class only deals with the mechanics of how to inline one graph into another,
      23             : // heuristics that decide what and how much to inline are beyond its scope.
      24      456726 : class JSInliner final : public AdvancedReducer {
      25             :  public:
      26             :   JSInliner(Editor* editor, Zone* local_zone, OptimizedCompilationInfo* info,
      27             :             JSGraph* jsgraph, JSHeapBroker* broker,
      28             :             SourcePositionTable* source_positions)
      29             :       : AdvancedReducer(editor),
      30             :         local_zone_(local_zone),
      31             :         info_(info),
      32             :         jsgraph_(jsgraph),
      33             :         broker_(broker),
      34      456731 :         source_positions_(source_positions) {}
      35             : 
      36           0 :   const char* reducer_name() const override { return "JSInliner"; }
      37             : 
      38             :   // Reducer interface, eagerly inlines everything.
      39             :   Reduction Reduce(Node* node) final;
      40             : 
      41             :   // Can be used by inlining heuristics or by testing code directly, without
      42             :   // using the above generic reducer interface of the inlining machinery.
      43             :   Reduction ReduceJSCall(Node* node);
      44             : 
      45             :  private:
      46             :   Zone* zone() const { return local_zone_; }
      47             :   CommonOperatorBuilder* common() const;
      48             :   JSOperatorBuilder* javascript() const;
      49             :   SimplifiedOperatorBuilder* simplified() const;
      50             :   Graph* graph() const;
      51             :   JSGraph* jsgraph() const { return jsgraph_; }
      52             :   // TODO(neis): Make heap broker a component of JSGraph?
      53             :   JSHeapBroker* broker() const { return broker_; }
      54      383080 :   Isolate* isolate() const { return jsgraph_->isolate(); }
      55             :   Handle<Context> native_context() const;
      56             : 
      57             :   Zone* const local_zone_;
      58             :   OptimizedCompilationInfo* info_;
      59             :   JSGraph* const jsgraph_;
      60             :   JSHeapBroker* const broker_;
      61             :   SourcePositionTable* const source_positions_;
      62             : 
      63             :   bool DetermineCallTarget(Node* node,
      64             :                            Handle<SharedFunctionInfo>& shared_info_out);
      65             :   void DetermineCallContext(Node* node, Node*& context_out,
      66             :                             Handle<FeedbackVector>& feedback_vector_out);
      67             : 
      68             :   Node* CreateArtificialFrameState(Node* node, Node* outer_frame_state,
      69             :                                    int parameter_count, BailoutId bailout_id,
      70             :                                    FrameStateType frame_state_type,
      71             :                                    Handle<SharedFunctionInfo> shared,
      72             :                                    Node* context = nullptr);
      73             : 
      74             :   Reduction InlineCall(Node* call, Node* new_target, Node* context,
      75             :                        Node* frame_state, Node* start, Node* end,
      76             :                        Node* exception_target,
      77             :                        const NodeVector& uncaught_subcalls);
      78             : };
      79             : 
      80             : }  // namespace compiler
      81             : }  // namespace internal
      82             : }  // namespace v8
      83             : 
      84             : #endif  // V8_COMPILER_JS_INLINING_H_