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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 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_TYPED_LOWERING_H_ | 5 #ifndef V8_COMPILER_JS_TYPED_LOWERING_H_ |
6 #define V8_COMPILER_JS_TYPED_LOWERING_H_ | 6 #define V8_COMPILER_JS_TYPED_LOWERING_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/opcodes.h" | 10 #include "src/compiler/opcodes.h" |
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28 class SimplifiedOperatorBuilder; | 28 class SimplifiedOperatorBuilder; |
29 | 29 |
30 | 30 |
31 // Lowers JS-level operators to simplified operators based on types. | 31 // Lowers JS-level operators to simplified operators based on types. |
32 class JSTypedLowering final : public AdvancedReducer { | 32 class JSTypedLowering final : public AdvancedReducer { |
33 public: | 33 public: |
34 // Flags that control the mode of operation. | 34 // Flags that control the mode of operation. |
35 enum Flag { | 35 enum Flag { |
36 kNoFlags = 0u, | 36 kNoFlags = 0u, |
37 kDeoptimizationEnabled = 1u << 0, | 37 kDeoptimizationEnabled = 1u << 0, |
38 kDisableBinaryOpReduction = 1u << 1, | 38 kDisableIntegerBinaryOpReduction = 1u << 1, |
39 kTypeFeedbackEnabled = 1u << 2, | 39 kTypeFeedbackEnabled = 1u << 2, |
40 }; | 40 }; |
41 typedef base::Flags<Flag> Flags; | 41 typedef base::Flags<Flag> Flags; |
42 | 42 |
43 JSTypedLowering(Editor* editor, CompilationDependencies* dependencies, | 43 JSTypedLowering(Editor* editor, CompilationDependencies* dependencies, |
44 Flags flags, JSGraph* jsgraph, Zone* zone); | 44 Flags flags, JSGraph* jsgraph, Zone* zone); |
45 ~JSTypedLowering() final {} | 45 ~JSTypedLowering() final {} |
46 | 46 |
47 Reduction Reduce(Node* node) final; | 47 Reduction Reduce(Node* node) final; |
48 | 48 |
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113 TypeCache const& type_cache_; | 113 TypeCache const& type_cache_; |
114 }; | 114 }; |
115 | 115 |
116 DEFINE_OPERATORS_FOR_FLAGS(JSTypedLowering::Flags) | 116 DEFINE_OPERATORS_FOR_FLAGS(JSTypedLowering::Flags) |
117 | 117 |
118 } // namespace compiler | 118 } // namespace compiler |
119 } // namespace internal | 119 } // namespace internal |
120 } // namespace v8 | 120 } // namespace v8 |
121 | 121 |
122 #endif // V8_COMPILER_JS_TYPED_LOWERING_H_ | 122 #endif // V8_COMPILER_JS_TYPED_LOWERING_H_ |
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