| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_COMPILER_JS_CONTEXT_SPECIALIZATION_H_ |
| #define V8_COMPILER_JS_CONTEXT_SPECIALIZATION_H_ |
| |
| #include "src/compiler/graph-reducer.h" |
| #include "src/compiler/js-graph.h" |
| #include "src/contexts.h" |
| #include "src/v8.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| // Specializes a given JSGraph to a given context, potentially constant folding |
| // some {LoadContext} nodes or strength reducing some {StoreContext} nodes. |
| class JSContextSpecializer { |
| public: |
| JSContextSpecializer(CompilationInfo* info, JSGraph* jsgraph, Node* context) |
| : info_(info), jsgraph_(jsgraph), context_(context) {} |
| |
| void SpecializeToContext(); |
| Reduction ReduceJSLoadContext(Node* node); |
| Reduction ReduceJSStoreContext(Node* node); |
| |
| private: |
| CompilationInfo* info_; |
| JSGraph* jsgraph_; |
| Node* context_; |
| }; |
| } |
| } |
| } // namespace v8::internal::compiler |
| |
| #endif // V8_COMPILER_JS_CONTEXT_SPECIALIZATION_H_ |