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 10namespace v8 { 11namespace internal { 12namespace 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). 20class JSContextRelaxation final : public Reducer { 21 public: 22 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