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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_SIMPLIFIED_LOWERING_H_ | 5 #ifndef V8_COMPILER_SIMPLIFIED_LOWERING_H_ |
6 #define V8_COMPILER_SIMPLIFIED_LOWERING_H_ | 6 #define V8_COMPILER_SIMPLIFIED_LOWERING_H_ |
7 | 7 |
| 8 #include "src/base/flags.h" |
8 #include "src/compiler/js-graph.h" | 9 #include "src/compiler/js-graph.h" |
9 #include "src/compiler/machine-operator.h" | 10 #include "src/compiler/machine-operator.h" |
10 #include "src/compiler/node.h" | 11 #include "src/compiler/node.h" |
11 #include "src/compiler/simplified-operator.h" | 12 #include "src/compiler/simplified-operator.h" |
12 | 13 |
13 namespace v8 { | 14 namespace v8 { |
14 namespace internal { | 15 namespace internal { |
15 | 16 |
16 // Forward declarations. | 17 // Forward declarations. |
17 class TypeCache; | 18 class TypeCache; |
18 | 19 |
19 | 20 |
20 namespace compiler { | 21 namespace compiler { |
21 | 22 |
22 // Forward declarations. | 23 // Forward declarations. |
23 class RepresentationChanger; | 24 class RepresentationChanger; |
24 class RepresentationSelector; | 25 class RepresentationSelector; |
25 class SourcePositionTable; | 26 class SourcePositionTable; |
26 | 27 |
27 class SimplifiedLowering final { | 28 class SimplifiedLowering final { |
28 public: | 29 public: |
| 30 enum Flag { kNoFlag = 0u, kTypeFeedbackEnabled = 1u << 0 }; |
| 31 typedef base::Flags<Flag> Flags; |
29 SimplifiedLowering(JSGraph* jsgraph, Zone* zone, | 32 SimplifiedLowering(JSGraph* jsgraph, Zone* zone, |
30 SourcePositionTable* source_positions); | 33 SourcePositionTable* source_positions, |
| 34 Flags flags = kNoFlag); |
31 ~SimplifiedLowering() {} | 35 ~SimplifiedLowering() {} |
32 | 36 |
33 void LowerAllNodes(); | 37 void LowerAllNodes(); |
34 | 38 |
35 void DoJSToNumberTruncatesToFloat64(Node* node, | 39 void DoJSToNumberTruncatesToFloat64(Node* node, |
36 RepresentationSelector* selector); | 40 RepresentationSelector* selector); |
37 void DoJSToNumberTruncatesToWord32(Node* node, | 41 void DoJSToNumberTruncatesToWord32(Node* node, |
38 RepresentationSelector* selector); | 42 RepresentationSelector* selector); |
39 // TODO(turbofan): The representation can be removed once the result of the | 43 // TODO(turbofan): The representation can be removed once the result of the |
40 // representation analysis is stored in the node bounds. | 44 // representation analysis is stored in the node bounds. |
41 void DoLoadBuffer(Node* node, MachineRepresentation rep, | 45 void DoLoadBuffer(Node* node, MachineRepresentation rep, |
42 RepresentationChanger* changer); | 46 RepresentationChanger* changer); |
43 void DoStoreBuffer(Node* node); | 47 void DoStoreBuffer(Node* node); |
44 void DoShift(Node* node, Operator const* op, Type* rhs_type); | 48 void DoShift(Node* node, Operator const* op, Type* rhs_type); |
45 | 49 |
| 50 Flags flags() const { return flags_; } |
| 51 |
46 private: | 52 private: |
47 JSGraph* const jsgraph_; | 53 JSGraph* const jsgraph_; |
48 Zone* const zone_; | 54 Zone* const zone_; |
49 TypeCache const& type_cache_; | 55 TypeCache const& type_cache_; |
50 SetOncePointer<Node> to_number_code_; | 56 SetOncePointer<Node> to_number_code_; |
51 SetOncePointer<Operator const> to_number_operator_; | 57 SetOncePointer<Operator const> to_number_operator_; |
| 58 Flags flags_; |
52 | 59 |
53 // TODO(danno): SimplifiedLowering shouldn't know anything about the source | 60 // TODO(danno): SimplifiedLowering shouldn't know anything about the source |
54 // positions table, but must for now since there currently is no other way to | 61 // positions table, but must for now since there currently is no other way to |
55 // pass down source position information to nodes created during | 62 // pass down source position information to nodes created during |
56 // lowering. Once this phase becomes a vanilla reducer, it should get source | 63 // lowering. Once this phase becomes a vanilla reducer, it should get source |
57 // position information via the SourcePositionWrapper like all other reducers. | 64 // position information via the SourcePositionWrapper like all other reducers. |
58 SourcePositionTable* source_positions_; | 65 SourcePositionTable* source_positions_; |
59 | 66 |
60 Node* Float64Ceil(Node* const node); | 67 Node* Float64Ceil(Node* const node); |
61 Node* Float64Floor(Node* const node); | 68 Node* Float64Floor(Node* const node); |
(...skipping 16 matching lines...) Expand all Loading... |
78 CommonOperatorBuilder* common() { return jsgraph()->common(); } | 85 CommonOperatorBuilder* common() { return jsgraph()->common(); } |
79 MachineOperatorBuilder* machine() { return jsgraph()->machine(); } | 86 MachineOperatorBuilder* machine() { return jsgraph()->machine(); } |
80 SimplifiedOperatorBuilder* simplified() { return jsgraph()->simplified(); } | 87 SimplifiedOperatorBuilder* simplified() { return jsgraph()->simplified(); } |
81 }; | 88 }; |
82 | 89 |
83 } // namespace compiler | 90 } // namespace compiler |
84 } // namespace internal | 91 } // namespace internal |
85 } // namespace v8 | 92 } // namespace v8 |
86 | 93 |
87 #endif // V8_COMPILER_SIMPLIFIED_LOWERING_H_ | 94 #endif // V8_COMPILER_SIMPLIFIED_LOWERING_H_ |
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