1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_COMPILER_NODE_PROPERTIES_H_
6 #define V8_COMPILER_NODE_PROPERTIES_H_
7 
8 #include "src/compiler/node.h"
9 #include "src/types.h"
10 
11 namespace v8 {
12 namespace internal {
13 namespace compiler {
14 
15 class Operator;
16 
17 // A facade that simplifies access to the different kinds of inputs to a node.
18 class NodeProperties {
19  public:
20   static inline Node* GetValueInput(Node* node, int index);
21   static inline Node* GetContextInput(Node* node);
22   static inline Node* GetFrameStateInput(Node* node);
23   static inline Node* GetEffectInput(Node* node, int index = 0);
24   static inline Node* GetControlInput(Node* node, int index = 0);
25 
26   static inline int GetFrameStateIndex(Node* node);
27 
28   static inline bool IsValueEdge(Node::Edge edge);
29   static inline bool IsContextEdge(Node::Edge edge);
30   static inline bool IsEffectEdge(Node::Edge edge);
31   static inline bool IsControlEdge(Node::Edge edge);
32 
33   static inline bool IsControl(Node* node);
34 
35   static inline void ReplaceControlInput(Node* node, Node* control);
36   static inline void ReplaceEffectInput(Node* node, Node* effect,
37                                         int index = 0);
38   static inline void ReplaceFrameStateInput(Node* node, Node* frame_state);
39   static inline void RemoveNonValueInputs(Node* node);
40   static inline void ReplaceWithValue(Node* node, Node* value,
41                                       Node* effect = NULL);
42 
43   static inline Bounds GetBounds(Node* node);
44   static inline void SetBounds(Node* node, Bounds bounds);
45 
46   static inline int FirstValueIndex(Node* node);
47   static inline int FirstContextIndex(Node* node);
48   static inline int FirstFrameStateIndex(Node* node);
49   static inline int FirstEffectIndex(Node* node);
50   static inline int FirstControlIndex(Node* node);
51   static inline int PastValueIndex(Node* node);
52   static inline int PastContextIndex(Node* node);
53   static inline int PastFrameStateIndex(Node* node);
54   static inline int PastEffectIndex(Node* node);
55   static inline int PastControlIndex(Node* node);
56 
57   static inline bool IsInputRange(Node::Edge edge, int first, int count);
58 };
59 
60 }  // namespace compiler
61 }  // namespace internal
62 }  // namespace v8
63 
64 #endif  // V8_COMPILER_NODE_PROPERTIES_H_
65