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Side by Side Diff: src/IceCfg.h

Issue 652633002: Subzero: Improve performance of liveness analysis and live range construction. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Remove TODO Created 6 years, 2 months ago
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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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55 // Manage nodes (a.k.a. basic blocks, CfgNodes). 55 // Manage nodes (a.k.a. basic blocks, CfgNodes).
56 void setEntryNode(CfgNode *EntryNode) { Entry = EntryNode; } 56 void setEntryNode(CfgNode *EntryNode) { Entry = EntryNode; }
57 CfgNode *getEntryNode() const { return Entry; } 57 CfgNode *getEntryNode() const { return Entry; }
58 // Create a node and append it to the end of the linearized list. 58 // Create a node and append it to the end of the linearized list.
59 CfgNode *makeNode(const IceString &Name = ""); 59 CfgNode *makeNode(const IceString &Name = "");
60 SizeT getNumNodes() const { return Nodes.size(); } 60 SizeT getNumNodes() const { return Nodes.size(); }
61 const NodeList &getNodes() const { return Nodes; } 61 const NodeList &getNodes() const { return Nodes; }
62 62
63 // Manage instruction numbering. 63 // Manage instruction numbering.
64 InstNumberT newInstNumber() { return NextInstNumber++; } 64 InstNumberT newInstNumber() { return NextInstNumber++; }
65 InstNumberT getNextInstNumber() const { return NextInstNumber; }
65 66
66 // Manage Variables. 67 // Manage Variables.
67 // Create a new Variable with a particular type and an optional 68 // Create a new Variable with a particular type and an optional
68 // name. The Node argument is the node where the variable is defined. 69 // name. The Node argument is the node where the variable is defined.
69 template <typename T> T *makeVariable(Type Ty, const IceString &Name = "") { 70 template <typename T> T *makeVariable(Type Ty, const IceString &Name = "") {
70 SizeT Index = Variables.size(); 71 SizeT Index = Variables.size();
71 T *Var = T::create(this, Ty, Index, Name); 72 T *Var = T::create(this, Ty, Index, Name);
72 Variables.push_back(Var); 73 Variables.push_back(Var);
73 return Var; 74 return Var;
74 } 75 }
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187 // spurious validation failures. 188 // spurious validation failures.
188 const CfgNode *CurrentNode; 189 const CfgNode *CurrentNode;
189 190
190 Cfg(const Cfg &) = delete; 191 Cfg(const Cfg &) = delete;
191 Cfg &operator=(const Cfg &) = delete; 192 Cfg &operator=(const Cfg &) = delete;
192 }; 193 };
193 194
194 } // end of namespace Ice 195 } // end of namespace Ice
195 196
196 #endif // SUBZERO_SRC_ICECFG_H 197 #endif // SUBZERO_SRC_ICECFG_H
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