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Side by Side Diff: src/IceCfgNode.h

Issue 1341423002: Reflow comments to use the full width. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Fix spelling and rebase Created 5 years, 3 months ago
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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 /// \file 10 /// \file
11 /// This file declares the CfgNode class, which represents a single 11 /// This file declares the CfgNode class, which represents a single basic block
12 /// basic block as its instruction list, in-edge list, and out-edge 12 /// as its instruction list, in-edge list, and out-edge list.
13 /// list.
14 /// 13 ///
15 //===----------------------------------------------------------------------===// 14 //===----------------------------------------------------------------------===//
16 15
17 #ifndef SUBZERO_SRC_ICECFGNODE_H 16 #ifndef SUBZERO_SRC_ICECFGNODE_H
18 #define SUBZERO_SRC_ICECFGNODE_H 17 #define SUBZERO_SRC_ICECFGNODE_H
19 18
20 #include "IceDefs.h" 19 #include "IceDefs.h"
21 #include "IceInst.h" // InstList traits 20 #include "IceInst.h" // InstList traits
22 21
23 namespace Ice { 22 namespace Ice {
(...skipping 19 matching lines...) Expand all
43 NameIndex = Func->addIdentifierName(NewName); 42 NameIndex = Func->addIdentifierName(NewName);
44 } 43 }
45 IceString getAsmName() const { 44 IceString getAsmName() const {
46 return ".L" + Func->getFunctionName() + "$" + getName(); 45 return ".L" + Func->getFunctionName() + "$" + getName();
47 } 46 }
48 47
49 void incrementLoopNestDepth() { ++LoopNestDepth; } 48 void incrementLoopNestDepth() { ++LoopNestDepth; }
50 void setLoopNestDepth(SizeT NewDepth) { LoopNestDepth = NewDepth; } 49 void setLoopNestDepth(SizeT NewDepth) { LoopNestDepth = NewDepth; }
51 SizeT getLoopNestDepth() const { return LoopNestDepth; } 50 SizeT getLoopNestDepth() const { return LoopNestDepth; }
52 51
53 /// The HasReturn flag indicates that this node contains a return 52 /// The HasReturn flag indicates that this node contains a return instruction
54 /// instruction and therefore needs an epilog. 53 /// and therefore needs an epilog.
55 void setHasReturn() { HasReturn = true; } 54 void setHasReturn() { HasReturn = true; }
56 bool getHasReturn() const { return HasReturn; } 55 bool getHasReturn() const { return HasReturn; }
57 56
58 void setNeedsPlacement(bool Value) { NeedsPlacement = Value; } 57 void setNeedsPlacement(bool Value) { NeedsPlacement = Value; }
59 bool needsPlacement() const { return NeedsPlacement; } 58 bool needsPlacement() const { return NeedsPlacement; }
60 59
61 void setNeedsAlignment() { NeedsAlignment = true; } 60 void setNeedsAlignment() { NeedsAlignment = true; }
62 bool needsAlignment() const { return NeedsAlignment; } 61 bool needsAlignment() const { return NeedsAlignment; }
63 62
64 /// \name Access predecessor and successor edge lists. 63 /// \name Access predecessor and successor edge lists.
65 /// @{ 64 /// @{
66 const NodeList &getInEdges() const { return InEdges; } 65 const NodeList &getInEdges() const { return InEdges; }
67 const NodeList &getOutEdges() const { return OutEdges; } 66 const NodeList &getOutEdges() const { return OutEdges; }
68 /// @} 67 /// @}
69 68
70 /// \name Manage the instruction list. 69 /// \name Manage the instruction list.
71 /// @{ 70 /// @{
72 InstList &getInsts() { return Insts; } 71 InstList &getInsts() { return Insts; }
73 PhiList &getPhis() { return Phis; } 72 PhiList &getPhis() { return Phis; }
74 void appendInst(Inst *Inst); 73 void appendInst(Inst *Inst);
75 void renumberInstructions(); 74 void renumberInstructions();
76 /// Rough and generally conservative estimate of the number of 75 /// Rough and generally conservative estimate of the number of instructions in
77 /// instructions in the block. It is updated when an instruction is 76 /// the block. It is updated when an instruction is added, but not when
78 /// added, but not when deleted. It is recomputed during 77 /// deleted. It is recomputed during renumberInstructions().
79 /// renumberInstructions().
80 InstNumberT getInstCountEstimate() const { return InstCountEstimate; } 78 InstNumberT getInstCountEstimate() const { return InstCountEstimate; }
81 /// @} 79 /// @}
82 80
83 /// \name Manage predecessors and successors. 81 /// \name Manage predecessors and successors.
84 /// @{ 82 /// @{
85 83
86 /// Add a predecessor edge to the InEdges list for each of this 84 /// Add a predecessor edge to the InEdges list for each of this node's
87 /// node's successors. 85 /// successors.
88 void computePredecessors(); 86 void computePredecessors();
89 void computeSuccessors(); 87 void computeSuccessors();
90 CfgNode *splitIncomingEdge(CfgNode *Pred, SizeT InEdgeIndex); 88 CfgNode *splitIncomingEdge(CfgNode *Pred, SizeT InEdgeIndex);
91 /// @} 89 /// @}
92 90
93 void validatePhis(); 91 void validatePhis();
94 void placePhiLoads(); 92 void placePhiLoads();
95 void placePhiStores(); 93 void placePhiStores();
96 void deletePhis(); 94 void deletePhis();
97 void advancedPhiLowering(); 95 void advancedPhiLowering();
(...skipping 26 matching lines...) Expand all
124 InstNumberT InstCountEstimate = 0; /// rough instruction count estimate 122 InstNumberT InstCountEstimate = 0; /// rough instruction count estimate
125 NodeList InEdges; /// in no particular order 123 NodeList InEdges; /// in no particular order
126 NodeList OutEdges; /// in no particular order 124 NodeList OutEdges; /// in no particular order
127 PhiList Phis; /// unordered set of phi instructions 125 PhiList Phis; /// unordered set of phi instructions
128 InstList Insts; /// ordered list of non-phi instructions 126 InstList Insts; /// ordered list of non-phi instructions
129 }; 127 };
130 128
131 } // end of namespace Ice 129 } // end of namespace Ice
132 130
133 #endif // SUBZERO_SRC_ICECFGNODE_H 131 #endif // SUBZERO_SRC_ICECFGNODE_H
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