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 class JSHeapCopyReducer : public Reducer {
21  public:
22   explicit JSHeapCopyReducer(JSHeapBroker* broker);
23 
reducer_name()24   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_
39