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1 //===- subzero/src/IceInst.h - High-level instructions ----------*- C++ -*-===// | 1 //===- subzero/src/IceInst.h - High-level instructions ----------*- 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 |
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104 Variable *getDest() const { return Dest; } | 104 Variable *getDest() const { return Dest; } |
105 | 105 |
106 SizeT getSrcSize() const { return Srcs.size(); } | 106 SizeT getSrcSize() const { return Srcs.size(); } |
107 Operand *getSrc(SizeT I) const { | 107 Operand *getSrc(SizeT I) const { |
108 assert(I < getSrcSize()); | 108 assert(I < getSrcSize()); |
109 return Srcs[I]; | 109 return Srcs[I]; |
110 } | 110 } |
111 void replaceSource(SizeT Index, Operand *Replacement) { | 111 void replaceSource(SizeT Index, Operand *Replacement) { |
112 assert(Index < getSrcSize()); | 112 assert(Index < getSrcSize()); |
113 assert(!isDeleted()); | 113 assert(!isDeleted()); |
114 assert(LiveRangesEnded == 0); | 114 // assert(LiveRangesEnded == 0); |
115 // Invalidates liveness info because the use Srcs[Index] is removed. | 115 // Invalidates liveness info because the use Srcs[Index] is removed. |
116 Srcs[Index] = Replacement; | 116 Srcs[Index] = Replacement; |
117 } | 117 } |
118 | 118 |
119 bool isLastUse(const Operand *Src) const; | 119 bool isLastUse(const Operand *Src) const; |
120 void spliceLivenessInfo(Inst *OrigInst, Inst *SpliceAssn); | 120 void spliceLivenessInfo(Inst *OrigInst, Inst *SpliceAssn); |
121 | 121 |
122 /// Returns a list of out-edges corresponding to a terminator instruction, | 122 /// Returns a list of out-edges corresponding to a terminator instruction, |
123 /// which is the last instruction of the block. The list must not contain | 123 /// which is the last instruction of the block. The list must not contain |
124 /// duplicates. | 124 /// duplicates. |
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177 virtual void emitIAS(const Cfg *Func) const { emit(Func); } | 177 virtual void emitIAS(const Cfg *Func) const { emit(Func); } |
178 virtual void dump(const Cfg *Func) const; | 178 virtual void dump(const Cfg *Func) const; |
179 virtual void dumpExtras(const Cfg *Func) const; | 179 virtual void dumpExtras(const Cfg *Func) const; |
180 void dumpDecorated(const Cfg *Func) const; | 180 void dumpDecorated(const Cfg *Func) const; |
181 void emitSources(const Cfg *Func) const; | 181 void emitSources(const Cfg *Func) const; |
182 void dumpSources(const Cfg *Func) const; | 182 void dumpSources(const Cfg *Func) const; |
183 void dumpDest(const Cfg *Func) const; | 183 void dumpDest(const Cfg *Func) const; |
184 virtual bool isRedundantAssign() const { return false; } | 184 virtual bool isRedundantAssign() const { return false; } |
185 | 185 |
186 virtual ~Inst() = default; | 186 virtual ~Inst() = default; |
| 187 void replaceDest(Variable *Var) { Dest = Var; } |
187 | 188 |
188 protected: | 189 protected: |
189 Inst(Cfg *Func, InstKind Kind, SizeT MaxSrcs, Variable *Dest); | 190 Inst(Cfg *Func, InstKind Kind, SizeT MaxSrcs, Variable *Dest); |
190 void addSource(Operand *Src) { | 191 void addSource(Operand *Src) { |
191 assert(Src); | 192 assert(Src); |
192 Srcs.push_back(Src); | 193 Srcs.push_back(Src); |
193 } | 194 } |
194 void setLastUse(SizeT VarIndex) { | 195 void setLastUse(SizeT VarIndex) { |
195 if (VarIndex < CHAR_BIT * sizeof(LiveRangesEnded)) | 196 if (VarIndex < CHAR_BIT * sizeof(LiveRangesEnded)) |
196 LiveRangesEnded |= (((LREndedBits)1u) << VarIndex); | 197 LiveRangesEnded |= (((LREndedBits)1u) << VarIndex); |
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1147 | 1148 |
1148 inline Inst *iteratorToInst(InstList::iterator Iter) { return &*Iter; } | 1149 inline Inst *iteratorToInst(InstList::iterator Iter) { return &*Iter; } |
1149 | 1150 |
1150 inline const Inst *iteratorToInst(InstList::const_iterator Iter) { | 1151 inline const Inst *iteratorToInst(InstList::const_iterator Iter) { |
1151 return &*Iter; | 1152 return &*Iter; |
1152 } | 1153 } |
1153 | 1154 |
1154 } // end of namespace Ice | 1155 } // end of namespace Ice |
1155 | 1156 |
1156 #endif // SUBZERO_SRC_ICEINST_H | 1157 #endif // SUBZERO_SRC_ICEINST_H |
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