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      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/js-graph.h"
      9 #include "src/compiler/graph-reducer.h"
     10 
     11 namespace v8 {
     12 namespace internal {
     13 
     14 // Forward declarations.
     15 class CompilationInfo;
     16 
     17 namespace compiler {
     18 
     19 // The JSInliner provides the core graph inlining machinery. Note that this
     20 // class only deals with the mechanics of how to inline one graph into another,
     21 // heuristics that decide what and how much to inline are beyond its scope.
     22 class JSInliner final : public AdvancedReducer {
     23  public:
     24   JSInliner(Editor* editor, Zone* local_zone, CompilationInfo* info,
     25             JSGraph* jsgraph)
     26       : AdvancedReducer(editor),
     27         local_zone_(local_zone),
     28         info_(info),
     29         jsgraph_(jsgraph) {}
     30 
     31   // Reducer interface, eagerly inlines everything.
     32   Reduction Reduce(Node* node) final;
     33 
     34   // Can be used by inlining heuristics or by testing code directly, without
     35   // using the above generic reducer interface of the inlining machinery.
     36   Reduction ReduceJSCall(Node* node, Handle<JSFunction> function);
     37 
     38  private:
     39   Zone* local_zone_;
     40   CompilationInfo* info_;
     41   JSGraph* jsgraph_;
     42 
     43   Node* CreateArtificialFrameState(Node* node, Node* outer_frame_state,
     44                                    int parameter_count,
     45                                    FrameStateType frame_state_type,
     46                                    Handle<SharedFunctionInfo> shared);
     47 
     48   Reduction InlineCall(Node* call, Node* new_target, Node* context,
     49                        Node* frame_state, Node* start, Node* end);
     50 };
     51 
     52 }  // namespace compiler
     53 }  // namespace internal
     54 }  // namespace v8
     55 
     56 #endif  // V8_COMPILER_JS_INLINING_H_
     57