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      1 // Copyright 2015 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_FRAME_SPECIALIZATION_H_
      6 #define V8_COMPILER_JS_FRAME_SPECIALIZATION_H_
      7 
      8 #include "src/compiler/graph-reducer.h"
      9 
     10 namespace v8 {
     11 namespace internal {
     12 
     13 // Forward declarations.
     14 class JavaScriptFrame;
     15 
     16 namespace compiler {
     17 
     18 // Forward declarations.
     19 class JSGraph;
     20 
     21 
     22 class JSFrameSpecialization final : public Reducer {
     23  public:
     24   JSFrameSpecialization(JavaScriptFrame const* frame, JSGraph* jsgraph)
     25       : frame_(frame), jsgraph_(jsgraph) {}
     26   ~JSFrameSpecialization() final {}
     27 
     28   Reduction Reduce(Node* node) final;
     29 
     30  private:
     31   Reduction ReduceOsrValue(Node* node);
     32   Reduction ReduceParameter(Node* node);
     33 
     34   Isolate* isolate() const;
     35   JavaScriptFrame const* frame() const { return frame_; }
     36   JSGraph* jsgraph() const { return jsgraph_; }
     37 
     38   JavaScriptFrame const* const frame_;
     39   JSGraph* const jsgraph_;
     40 
     41   DISALLOW_COPY_AND_ASSIGN(JSFrameSpecialization);
     42 };
     43 
     44 }  // namespace compiler
     45 }  // namespace internal
     46 }  // namespace v8
     47 
     48 #endif  // V8_COMPILER_JS_FRAME_SPECIALIZATION_H_
     49