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Side by Side Diff: src/compiler/js-global-specialization.h

Issue 1398723002: [turbofan] Optimize stores to global properties. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Address Jaro's comment. Created 5 years, 2 months ago
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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"
11 11
12 namespace v8 { 12 namespace v8 {
13 namespace internal { 13 namespace internal {
14 14
15 // Forward declarations. 15 // Forward declarations.
16 class CompilationDependencies; 16 class CompilationDependencies;
17 17
18 18
19 namespace compiler { 19 namespace compiler {
20 20
21 // Forward declarations. 21 // Forward declarations.
22 class CommonOperatorBuilder;
22 class JSGraph; 23 class JSGraph;
23 class JSOperatorBuilder; 24 class JSOperatorBuilder;
24 25
25 26
26 // Specializes a given JSGraph to a given GlobalObject, potentially constant 27 // Specializes a given JSGraph to a given GlobalObject, potentially constant
27 // folding some {LoadGlobal} nodes or strength reducing some {StoreGlobal} 28 // folding some {LoadGlobal} nodes or strength reducing some {StoreGlobal}
28 // nodes. 29 // nodes.
29 class JSGlobalSpecialization final : public AdvancedReducer { 30 class JSGlobalSpecialization final : public AdvancedReducer {
30 public: 31 public:
31 // Flags that control the mode of operation. 32 // Flags that control the mode of operation.
(...skipping 21 matching lines...) Expand all
53 Reduction Replace(Node* node, Node* value, Node* effect = nullptr, 54 Reduction Replace(Node* node, Node* value, Node* effect = nullptr,
54 Node* control = nullptr) { 55 Node* control = nullptr) {
55 ReplaceWithValue(node, value, effect, control); 56 ReplaceWithValue(node, value, effect, control);
56 return Changed(value); 57 return Changed(value);
57 } 58 }
58 Reduction Replace(Node* node, Handle<Object> value); 59 Reduction Replace(Node* node, Handle<Object> value);
59 60
60 Graph* graph() const; 61 Graph* graph() const;
61 JSGraph* jsgraph() const { return jsgraph_; } 62 JSGraph* jsgraph() const { return jsgraph_; }
62 Isolate* isolate() const; 63 Isolate* isolate() const;
64 CommonOperatorBuilder* common() const;
63 JSOperatorBuilder* javascript() const; 65 JSOperatorBuilder* javascript() const;
64 SimplifiedOperatorBuilder* simplified() { return &simplified_; } 66 SimplifiedOperatorBuilder* simplified() { return &simplified_; }
65 Flags flags() const { return flags_; } 67 Flags flags() const { return flags_; }
66 Handle<GlobalObject> global_object() const { return global_object_; } 68 Handle<GlobalObject> global_object() const { return global_object_; }
67 CompilationDependencies* dependencies() const { return dependencies_; } 69 CompilationDependencies* dependencies() const { return dependencies_; }
68 70
69 JSGraph* const jsgraph_; 71 JSGraph* const jsgraph_;
70 Flags const flags_; 72 Flags const flags_;
71 Handle<GlobalObject> global_object_; 73 Handle<GlobalObject> global_object_;
72 CompilationDependencies* const dependencies_; 74 CompilationDependencies* const dependencies_;
73 SimplifiedOperatorBuilder simplified_; 75 SimplifiedOperatorBuilder simplified_;
74 76
75 DISALLOW_COPY_AND_ASSIGN(JSGlobalSpecialization); 77 DISALLOW_COPY_AND_ASSIGN(JSGlobalSpecialization);
76 }; 78 };
77 79
78 DEFINE_OPERATORS_FOR_FLAGS(JSGlobalSpecialization::Flags) 80 DEFINE_OPERATORS_FOR_FLAGS(JSGlobalSpecialization::Flags)
79 81
80 } // namespace compiler 82 } // namespace compiler
81 } // namespace internal 83 } // namespace internal
82 } // namespace v8 84 } // namespace v8
83 85
84 #endif // V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_ 86 #endif // V8_COMPILER_JS_GLOBAL_SPECIALIZATION_H_
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