OLD | NEW |
1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_ | 5 #ifndef V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_ |
6 #define V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_ | 6 #define V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_ |
7 | 7 |
8 #include "src/base/flags.h" | 8 #include "src/base/flags.h" |
9 #include "src/compiler/graph-reducer.h" | 9 #include "src/compiler/graph-reducer.h" |
10 #include "src/compiler/simplified-operator.h" | 10 #include "src/compiler/simplified-operator.h" |
(...skipping 15 matching lines...) Expand all Loading... |
26 | 26 |
27 // Specializes a given JSGraph to a given GlobalObject, potentially constant | 27 // Specializes a given JSGraph to a given GlobalObject, potentially constant |
28 // folding some {LoadGlobal} nodes or strength reducing some {StoreGlobal} | 28 // folding some {LoadGlobal} nodes or strength reducing some {StoreGlobal} |
29 // nodes. | 29 // nodes. |
30 class JSGlobalSpecialization final : public AdvancedReducer { | 30 class JSGlobalSpecialization final : public AdvancedReducer { |
31 public: | 31 public: |
32 // Flags that control the mode of operation. | 32 // Flags that control the mode of operation. |
33 enum Flag { | 33 enum Flag { |
34 kNoFlags = 0u, | 34 kNoFlags = 0u, |
35 kDeoptimizationEnabled = 1u << 0, | 35 kDeoptimizationEnabled = 1u << 0, |
36 kTypingEnabled = 1u << 1 | |
37 }; | 36 }; |
38 typedef base::Flags<Flag> Flags; | 37 typedef base::Flags<Flag> Flags; |
39 | 38 |
40 JSGlobalSpecialization(Editor* editor, JSGraph* jsgraph, Flags flags, | 39 JSGlobalSpecialization(Editor* editor, JSGraph* jsgraph, Flags flags, |
41 Handle<GlobalObject> global_object, | 40 Handle<GlobalObject> global_object, |
42 CompilationDependencies* dependencies); | 41 CompilationDependencies* dependencies); |
43 | 42 |
44 Reduction Reduce(Node* node) final; | 43 Reduction Reduce(Node* node) final; |
45 | 44 |
46 private: | 45 private: |
47 Reduction ReduceJSLoadGlobal(Node* node); | 46 Reduction ReduceJSLoadGlobal(Node* node); |
48 Reduction ReduceJSStoreGlobal(Node* node); | 47 Reduction ReduceJSStoreGlobal(Node* node); |
49 Reduction ReduceLoadFromPropertyCell(Node* node, | |
50 Handle<PropertyCell> property_cell); | |
51 Reduction ReduceStoreToPropertyCell(Node* node, | |
52 Handle<PropertyCell> property_cell); | |
53 | 48 |
54 Reduction Replace(Node* node, Node* value, Node* effect = nullptr, | 49 Reduction Replace(Node* node, Node* value, Node* effect = nullptr, |
55 Node* control = nullptr) { | 50 Node* control = nullptr) { |
56 ReplaceWithValue(node, value, effect, control); | 51 ReplaceWithValue(node, value, effect, control); |
57 return Changed(value); | 52 return Changed(value); |
58 } | 53 } |
59 Reduction Replace(Node* node, Handle<Object> value); | 54 Reduction Replace(Node* node, Handle<Object> value); |
60 | 55 |
| 56 struct ScriptContextTableLookupResult; |
| 57 bool LookupInScriptContextTable(Handle<Name> name, |
| 58 ScriptContextTableLookupResult* result); |
| 59 |
61 Graph* graph() const; | 60 Graph* graph() const; |
62 JSGraph* jsgraph() const { return jsgraph_; } | 61 JSGraph* jsgraph() const { return jsgraph_; } |
63 Isolate* isolate() const; | 62 Isolate* isolate() const; |
64 CommonOperatorBuilder* common() const; | 63 CommonOperatorBuilder* common() const; |
65 JSOperatorBuilder* javascript() const; | 64 JSOperatorBuilder* javascript() const; |
66 SimplifiedOperatorBuilder* simplified() { return &simplified_; } | 65 SimplifiedOperatorBuilder* simplified() { return &simplified_; } |
67 Flags flags() const { return flags_; } | 66 Flags flags() const { return flags_; } |
68 Handle<GlobalObject> global_object() const { return global_object_; } | 67 Handle<GlobalObject> global_object() const { return global_object_; } |
69 CompilationDependencies* dependencies() const { return dependencies_; } | 68 CompilationDependencies* dependencies() const { return dependencies_; } |
70 | 69 |
71 JSGraph* const jsgraph_; | 70 JSGraph* const jsgraph_; |
72 Flags const flags_; | 71 Flags const flags_; |
73 Handle<GlobalObject> global_object_; | 72 Handle<GlobalObject> global_object_; |
74 CompilationDependencies* const dependencies_; | 73 CompilationDependencies* const dependencies_; |
75 SimplifiedOperatorBuilder simplified_; | 74 SimplifiedOperatorBuilder simplified_; |
76 | 75 |
77 DISALLOW_COPY_AND_ASSIGN(JSGlobalSpecialization); | 76 DISALLOW_COPY_AND_ASSIGN(JSGlobalSpecialization); |
78 }; | 77 }; |
79 | 78 |
80 DEFINE_OPERATORS_FOR_FLAGS(JSGlobalSpecialization::Flags) | 79 DEFINE_OPERATORS_FOR_FLAGS(JSGlobalSpecialization::Flags) |
81 | 80 |
82 } // namespace compiler | 81 } // namespace compiler |
83 } // namespace internal | 82 } // namespace internal |
84 } // namespace v8 | 83 } // namespace v8 |
85 | 84 |
86 #endif // V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_ | 85 #endif // V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_ |
OLD | NEW |