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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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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 kDisableBinaryOpReduction = 1u << 1, |
| 39 kTypeFeedbackEnabled = 1u << 2, |
39 }; | 40 }; |
40 typedef base::Flags<Flag> Flags; | 41 typedef base::Flags<Flag> Flags; |
41 | 42 |
42 JSTypedLowering(Editor* editor, CompilationDependencies* dependencies, | 43 JSTypedLowering(Editor* editor, CompilationDependencies* dependencies, |
43 Flags flags, JSGraph* jsgraph, Zone* zone); | 44 Flags flags, JSGraph* jsgraph, Zone* zone); |
44 ~JSTypedLowering() final {} | 45 ~JSTypedLowering() final {} |
45 | 46 |
46 Reduction Reduce(Node* node) final; | 47 Reduction Reduce(Node* node) final; |
47 | 48 |
48 private: | 49 private: |
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73 Reduction ReduceJSConvertReceiver(Node* node); | 74 Reduction ReduceJSConvertReceiver(Node* node); |
74 Reduction ReduceJSCallConstruct(Node* node); | 75 Reduction ReduceJSCallConstruct(Node* node); |
75 Reduction ReduceJSCallFunction(Node* node); | 76 Reduction ReduceJSCallFunction(Node* node); |
76 Reduction ReduceJSForInDone(Node* node); | 77 Reduction ReduceJSForInDone(Node* node); |
77 Reduction ReduceJSForInNext(Node* node); | 78 Reduction ReduceJSForInNext(Node* node); |
78 Reduction ReduceJSForInStep(Node* node); | 79 Reduction ReduceJSForInStep(Node* node); |
79 Reduction ReduceJSGeneratorStore(Node* node); | 80 Reduction ReduceJSGeneratorStore(Node* node); |
80 Reduction ReduceJSGeneratorRestoreContinuation(Node* node); | 81 Reduction ReduceJSGeneratorRestoreContinuation(Node* node); |
81 Reduction ReduceJSGeneratorRestoreRegister(Node* node); | 82 Reduction ReduceJSGeneratorRestoreRegister(Node* node); |
82 Reduction ReduceSelect(Node* node); | 83 Reduction ReduceSelect(Node* node); |
83 Reduction ReduceNumberBinop(Node* node, const Operator* numberOp); | 84 Reduction ReduceJSSubtract(Node* node); |
| 85 Reduction ReduceJSDivide(Node* node); |
84 Reduction ReduceInt32Binop(Node* node, const Operator* intOp); | 86 Reduction ReduceInt32Binop(Node* node, const Operator* intOp); |
85 Reduction ReduceUI32Shift(Node* node, Signedness left_signedness, | 87 Reduction ReduceUI32Shift(Node* node, Signedness left_signedness, |
86 const Operator* shift_op); | 88 const Operator* shift_op); |
87 | 89 |
88 Node* Word32Shl(Node* const lhs, int32_t const rhs); | 90 Node* Word32Shl(Node* const lhs, int32_t const rhs); |
89 | 91 |
90 Node* EmptyFrameState(); | 92 Node* EmptyFrameState(); |
91 | 93 |
92 Factory* factory() const; | 94 Factory* factory() const; |
93 Graph* graph() const; | 95 Graph* graph() const; |
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110 TypeCache const& type_cache_; | 112 TypeCache const& type_cache_; |
111 }; | 113 }; |
112 | 114 |
113 DEFINE_OPERATORS_FOR_FLAGS(JSTypedLowering::Flags) | 115 DEFINE_OPERATORS_FOR_FLAGS(JSTypedLowering::Flags) |
114 | 116 |
115 } // namespace compiler | 117 } // namespace compiler |
116 } // namespace internal | 118 } // namespace internal |
117 } // namespace v8 | 119 } // namespace v8 |
118 | 120 |
119 #endif // V8_COMPILER_JS_TYPED_LOWERING_H_ | 121 #endif // V8_COMPILER_JS_TYPED_LOWERING_H_ |
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