OLD | NEW |
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/compiler/graph-reducer.h" | |
9 #include "src/compiler/js-graph.h" | 8 #include "src/compiler/js-graph.h" |
10 #include "src/compiler/machine-operator.h" | 9 #include "src/compiler/machine-operator.h" |
11 #include "src/compiler/node.h" | 10 #include "src/compiler/node.h" |
12 #include "src/compiler/simplified-operator.h" | 11 #include "src/compiler/simplified-operator.h" |
13 | 12 |
14 namespace v8 { | 13 namespace v8 { |
15 namespace internal { | 14 namespace internal { |
16 namespace compiler { | 15 namespace compiler { |
17 | 16 |
18 class SimplifiedLowering : public Reducer { | 17 class SimplifiedLowering { |
19 public: | 18 public: |
20 explicit SimplifiedLowering(JSGraph* jsgraph) | 19 explicit SimplifiedLowering(JSGraph* jsgraph) |
21 : jsgraph_(jsgraph), machine_(jsgraph->zone()) {} | 20 : jsgraph_(jsgraph), machine_(jsgraph->zone()) {} |
22 virtual ~SimplifiedLowering() {} | 21 virtual ~SimplifiedLowering() {} |
23 | 22 |
24 void LowerAllNodes(); | 23 void LowerAllNodes(); |
25 | 24 |
26 virtual Reduction Reduce(Node* node); | |
27 void LowerChange(Node* node, Node* effect, Node* control); | |
28 | |
29 // TODO(titzer): These are exposed for direct testing. Use a friend class. | 25 // TODO(titzer): These are exposed for direct testing. Use a friend class. |
30 void DoLoadField(Node* node); | 26 void DoLoadField(Node* node); |
31 void DoStoreField(Node* node); | 27 void DoStoreField(Node* node); |
32 void DoLoadElement(Node* node); | 28 void DoLoadElement(Node* node); |
33 void DoStoreElement(Node* node); | 29 void DoStoreElement(Node* node); |
34 | 30 |
35 private: | 31 private: |
36 JSGraph* jsgraph_; | 32 JSGraph* jsgraph_; |
37 MachineOperatorBuilder machine_; | 33 MachineOperatorBuilder machine_; |
38 | 34 |
39 Node* SmiTag(Node* node); | 35 Node* SmiTag(Node* node); |
40 Node* IsTagged(Node* node); | 36 Node* IsTagged(Node* node); |
41 Node* Untag(Node* node); | 37 Node* Untag(Node* node); |
42 Node* OffsetMinusTagConstant(int32_t offset); | 38 Node* OffsetMinusTagConstant(int32_t offset); |
43 Node* ComputeIndex(const ElementAccess& access, Node* index); | 39 Node* ComputeIndex(const ElementAccess& access, Node* index); |
44 | 40 |
45 void DoChangeTaggedToUI32(Node* node, Node* effect, Node* control, | |
46 bool is_signed); | |
47 void DoChangeUI32ToTagged(Node* node, Node* effect, Node* control, | |
48 bool is_signed); | |
49 void DoChangeTaggedToFloat64(Node* node, Node* effect, Node* control); | |
50 void DoChangeFloat64ToTagged(Node* node, Node* effect, Node* control); | |
51 void DoChangeBoolToBit(Node* node, Node* effect, Node* control); | |
52 void DoChangeBitToBool(Node* node, Node* effect, Node* control); | |
53 | |
54 friend class RepresentationSelector; | 41 friend class RepresentationSelector; |
55 | 42 |
56 Zone* zone() { return jsgraph_->zone(); } | 43 Zone* zone() { return jsgraph_->zone(); } |
57 JSGraph* jsgraph() { return jsgraph_; } | 44 JSGraph* jsgraph() { return jsgraph_; } |
58 Graph* graph() { return jsgraph()->graph(); } | 45 Graph* graph() { return jsgraph()->graph(); } |
59 CommonOperatorBuilder* common() { return jsgraph()->common(); } | 46 CommonOperatorBuilder* common() { return jsgraph()->common(); } |
60 MachineOperatorBuilder* machine() { return &machine_; } | 47 MachineOperatorBuilder* machine() { return &machine_; } |
61 }; | 48 }; |
62 | 49 |
63 } // namespace compiler | 50 } // namespace compiler |
64 } // namespace internal | 51 } // namespace internal |
65 } // namespace v8 | 52 } // namespace v8 |
66 | 53 |
67 #endif // V8_COMPILER_SIMPLIFIED_LOWERING_H_ | 54 #endif // V8_COMPILER_SIMPLIFIED_LOWERING_H_ |
OLD | NEW |