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1 //===- subzero/src/IceCfgNode.h - Control flow graph node -------*- C++ -*-===// | 1 //===- subzero/src/IceCfgNode.h - Control flow graph node -------*- C++ -*-===// |
2 // | 2 // |
3 // The Subzero Code Generator | 3 // The Subzero Code Generator |
4 // | 4 // |
5 // This file is distributed under the University of Illinois Open Source | 5 // This file is distributed under the University of Illinois Open Source |
6 // License. See LICENSE.TXT for details. | 6 // License. See LICENSE.TXT for details. |
7 // | 7 // |
8 //===----------------------------------------------------------------------===// | 8 //===----------------------------------------------------------------------===// |
9 // | 9 // |
10 // This file declares the CfgNode class, which represents a single | 10 // This file declares the CfgNode class, which represents a single |
11 // basic block as its instruction list, in-edge list, and out-edge | 11 // basic block as its instruction list, in-edge list, and out-edge |
12 // list. | 12 // list. |
13 // | 13 // |
14 //===----------------------------------------------------------------------===// | 14 //===----------------------------------------------------------------------===// |
15 | 15 |
16 #ifndef SUBZERO_SRC_ICECFGNODE_H | 16 #ifndef SUBZERO_SRC_ICECFGNODE_H |
17 #define SUBZERO_SRC_ICECFGNODE_H | 17 #define SUBZERO_SRC_ICECFGNODE_H |
18 | 18 |
19 #include "IceDefs.h" | 19 #include "IceDefs.h" |
20 | 20 |
21 namespace Ice { | 21 namespace Ice { |
22 | 22 |
23 class CfgNode { | 23 class CfgNode { |
| 24 CfgNode(const CfgNode &) = delete; |
| 25 CfgNode &operator=(const CfgNode &) = delete; |
| 26 |
24 public: | 27 public: |
25 static CfgNode *create(Cfg *Func, SizeT LabelIndex, IceString Name = "") { | 28 static CfgNode *create(Cfg *Func, SizeT LabelIndex, IceString Name = "") { |
26 return new (Func->allocate<CfgNode>()) CfgNode(Func, LabelIndex, Name); | 29 return new (Func->allocate<CfgNode>()) CfgNode(Func, LabelIndex, Name); |
27 } | 30 } |
28 | 31 |
29 // Access the label number and name for this node. | 32 // Access the label number and name for this node. |
30 SizeT getIndex() const { return Number; } | 33 SizeT getIndex() const { return Number; } |
31 IceString getName() const; | 34 IceString getName() const; |
32 void setName(IceString &NewName) { | 35 void setName(IceString &NewName) { |
33 // Make sure that the name can only be set once. | 36 // Make sure that the name can only be set once. |
(...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
69 void genCode(); | 72 void genCode(); |
70 void livenessLightweight(); | 73 void livenessLightweight(); |
71 bool liveness(Liveness *Liveness); | 74 bool liveness(Liveness *Liveness); |
72 void livenessPostprocess(LivenessMode Mode, Liveness *Liveness); | 75 void livenessPostprocess(LivenessMode Mode, Liveness *Liveness); |
73 void doBranchOpt(const CfgNode *NextNode); | 76 void doBranchOpt(const CfgNode *NextNode); |
74 void emit(Cfg *Func) const; | 77 void emit(Cfg *Func) const; |
75 void dump(Cfg *Func) const; | 78 void dump(Cfg *Func) const; |
76 | 79 |
77 private: | 80 private: |
78 CfgNode(Cfg *Func, SizeT LabelIndex, IceString Name); | 81 CfgNode(Cfg *Func, SizeT LabelIndex, IceString Name); |
79 CfgNode(const CfgNode &) = delete; | |
80 CfgNode &operator=(const CfgNode &) = delete; | |
81 Cfg *const Func; | 82 Cfg *const Func; |
82 const SizeT Number; // label index | 83 const SizeT Number; // label index |
83 IceString Name; // for dumping only | 84 IceString Name; // for dumping only |
84 bool HasReturn; // does this block need an epilog? | 85 bool HasReturn; // does this block need an epilog? |
85 InstNumberT InstCountEstimate; // rough instruction count estimate | 86 InstNumberT InstCountEstimate; // rough instruction count estimate |
86 NodeList InEdges; // in no particular order | 87 NodeList InEdges; // in no particular order |
87 NodeList OutEdges; // in no particular order | 88 NodeList OutEdges; // in no particular order |
88 PhiList Phis; // unordered set of phi instructions | 89 PhiList Phis; // unordered set of phi instructions |
89 InstList Insts; // ordered list of non-phi instructions | 90 InstList Insts; // ordered list of non-phi instructions |
90 }; | 91 }; |
91 | 92 |
92 } // end of namespace Ice | 93 } // end of namespace Ice |
93 | 94 |
94 #endif // SUBZERO_SRC_ICECFGNODE_H | 95 #endif // SUBZERO_SRC_ICECFGNODE_H |
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