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1 //===- subzero/src/IceCfg.h - Control flow graph ----------------*- C++ -*-===// | 1 //===- subzero/src/IceCfg.h - Control flow graph ----------------*- 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 Cfg class, which represents the control flow | 10 // This file declares the Cfg class, which represents the control flow |
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147 void genFrame(); | 147 void genFrame(); |
148 void livenessLightweight(); | 148 void livenessLightweight(); |
149 void liveness(LivenessMode Mode); | 149 void liveness(LivenessMode Mode); |
150 bool validateLiveness() const; | 150 bool validateLiveness() const; |
151 void contractEmptyNodes(); | 151 void contractEmptyNodes(); |
152 void doBranchOpt(); | 152 void doBranchOpt(); |
153 | 153 |
154 // Manage the CurrentNode field, which is used for validating the | 154 // Manage the CurrentNode field, which is used for validating the |
155 // Variable::DefNode field during dumping/emitting. | 155 // Variable::DefNode field during dumping/emitting. |
156 void setCurrentNode(const CfgNode *Node) { CurrentNode = Node; } | 156 void setCurrentNode(const CfgNode *Node) { CurrentNode = Node; } |
157 void resetCurrentNode() { setCurrentNode(NULL); } | 157 void resetCurrentNode() { setCurrentNode(nullptr); } |
158 const CfgNode *getCurrentNode() const { return CurrentNode; } | 158 const CfgNode *getCurrentNode() const { return CurrentNode; } |
159 | 159 |
160 void emit(); | 160 void emit(); |
161 void emitIAS(); | 161 void emitIAS(); |
162 void emitTextHeader(const IceString &MangledName); | 162 void emitTextHeader(const IceString &MangledName); |
163 void dump(const IceString &Message = ""); | 163 void dump(const IceString &Message = ""); |
164 | 164 |
165 // Allocate data of type T using the per-Cfg allocator. | 165 // Allocate data of type T using the per-Cfg allocator. |
166 template <typename T> T *allocate() { return Allocator->Allocate<T>(); } | 166 template <typename T> T *allocate() { return Allocator->Allocate<T>(); } |
167 | 167 |
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212 | 212 |
213 // Maintain a pointer in TLS to the current Cfg being translated. | 213 // Maintain a pointer in TLS to the current Cfg being translated. |
214 // This is primarily for accessing its allocator statelessly, but | 214 // This is primarily for accessing its allocator statelessly, but |
215 // other uses are possible. | 215 // other uses are possible. |
216 thread_local static const Cfg *CurrentCfg; | 216 thread_local static const Cfg *CurrentCfg; |
217 }; | 217 }; |
218 | 218 |
219 } // end of namespace Ice | 219 } // end of namespace Ice |
220 | 220 |
221 #endif // SUBZERO_SRC_ICECFG_H | 221 #endif // SUBZERO_SRC_ICECFG_H |
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