Line data    Source code

       1             : // Copyright 2018 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_HEAP_COPY_REDUCER_H_
       6             : #define V8_COMPILER_JS_HEAP_COPY_REDUCER_H_
       7             : 
       8             : #include "src/compiler/graph-reducer.h"
       9             : 
      10             : namespace v8 {
      11             : namespace internal {
      12             : namespace compiler {
      13             : 
      14             : class JSHeapBroker;
      15             : 
      16             : // The heap copy reducer makes sure that the relevant heap data referenced
      17             : // by handles embedded in the graph is copied to the heap broker.
      18             : // TODO(jarin) This is just a temporary solution until the graph uses only
      19             : // ObjetRef-derived reference to refer to the heap data.
      20      929056 : class V8_EXPORT_PRIVATE JSHeapCopyReducer : public Reducer {
      21             :  public:
      22             :   explicit JSHeapCopyReducer(JSHeapBroker* broker);
      23             : 
      24          26 :   const char* reducer_name() const override { return "JSHeapCopyReducer"; }
      25             : 
      26             :   Reduction Reduce(Node* node) override;
      27             : 
      28             :  private:
      29             :   JSHeapBroker* broker();
      30             : 
      31             :   JSHeapBroker* broker_;
      32             : };
      33             : 
      34             : }  // namespace compiler
      35             : }  // namespace internal
      36             : }  // namespace v8
      37             : 
      38             : #endif  // V8_COMPILER_JS_HEAP_COPY_REDUCER_H_