Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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_SPECIALIZATION_H_ |
| 6 | #define V8_COMPILER_JS_CONTEXT_SPECIALIZATION_H_ |
| 7 | |
| 8 | #include "src/compiler/graph-reducer.h" |
| 9 | #include "src/compiler/js-graph.h" |
| 10 | #include "src/contexts.h" |
| 11 | #include "src/v8.h" |
| 12 | |
| 13 | namespace v8 { |
| 14 | namespace internal { |
| 15 | namespace compiler { |
| 16 | |
| 17 | // Specializes a given JSGraph to a given context, potentially constant folding |
| 18 | // some {LoadContext} nodes or strength reducing some {StoreContext} nodes. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 19 | class JSContextSpecializer : public Reducer { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 20 | public: |
| 21 | JSContextSpecializer(CompilationInfo* info, JSGraph* jsgraph, Node* context) |
| 22 | : info_(info), jsgraph_(jsgraph), context_(context) {} |
| 23 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 24 | Reduction Reduce(Node* node) OVERRIDE; |
| 25 | |
| 26 | // Visible for unit testing. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 27 | Reduction ReduceJSLoadContext(Node* node); |
| 28 | Reduction ReduceJSStoreContext(Node* node); |
| 29 | |
| 30 | private: |
| 31 | CompilationInfo* info_; |
| 32 | JSGraph* jsgraph_; |
| 33 | Node* context_; |
| 34 | }; |
| 35 | } |
| 36 | } |
| 37 | } // namespace v8::internal::compiler |
| 38 | |
| 39 | #endif // V8_COMPILER_JS_CONTEXT_SPECIALIZATION_H_ |