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_CONTEXT_RELAXATION_H_
6 #define V8_COMPILER_JS_CONTEXT_RELAXATION_H_
7 
8 #include "src/compiler/graph-reducer.h"
9 
10 namespace v8 {
11 namespace internal {
12 namespace compiler {
13 
14 // Ensures that operations that only need to access the native context use the
15 // outer-most context rather than the specific context given by the AST graph
16 // builder. This makes it possible to use these operations with context
17 // specialization (e.g. for generating stubs) without forcing inner contexts to
18 // be embedded in generated code thus causing leaks and potentially using the
19 // wrong native context (i.e. stubs are shared between native contexts).
20 class JSContextRelaxation final : public Reducer {
21  public:
JSContextRelaxation()22   JSContextRelaxation() {}
~JSContextRelaxation()23   ~JSContextRelaxation() final {}
24 
25   Reduction Reduce(Node* node) final;
26 };
27 
28 }  // namespace compiler
29 }  // namespace internal
30 }  // namespace v8
31 
32 #endif  // V8_COMPILER_JS_CONTEXT_RELAXATION_H_
33