| LazyValueInfo.h (208954) | LazyValueInfo.h (212904) |
|---|---|
| 1//===- LazyValueInfo.h - Value constraint analysis --------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines the interface for lazy computation of value constraint 11// information. 12// 13//===----------------------------------------------------------------------===// 14 | 1//===- LazyValueInfo.h - Value constraint analysis --------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines the interface for lazy computation of value constraint 11// information. 12// 13//===----------------------------------------------------------------------===// 14 |
| 15#ifndef LLVM_ANALYSIS_LIVEVALUES_H 16#define LLVM_ANALYSIS_LIVEVALUES_H | 15#ifndef LLVM_ANALYSIS_LAZYVALUEINFO_H 16#define LLVM_ANALYSIS_LAZYVALUEINFO_H |
| 17 18#include "llvm/Pass.h" 19 20namespace llvm { 21 class Constant; 22 class TargetData; 23 class Value; 24 25/// LazyValueInfo - This pass computes, caches, and vends lazy value constraint 26/// information. 27class LazyValueInfo : public FunctionPass { 28 class TargetData *TD; 29 void *PImpl; 30 LazyValueInfo(const LazyValueInfo&); // DO NOT IMPLEMENT. 31 void operator=(const LazyValueInfo&); // DO NOT IMPLEMENT. 32public: 33 static char ID; | 17 18#include "llvm/Pass.h" 19 20namespace llvm { 21 class Constant; 22 class TargetData; 23 class Value; 24 25/// LazyValueInfo - This pass computes, caches, and vends lazy value constraint 26/// information. 27class LazyValueInfo : public FunctionPass { 28 class TargetData *TD; 29 void *PImpl; 30 LazyValueInfo(const LazyValueInfo&); // DO NOT IMPLEMENT. 31 void operator=(const LazyValueInfo&); // DO NOT IMPLEMENT. 32public: 33 static char ID; |
| 34 LazyValueInfo() : FunctionPass(&ID), PImpl(0) {} | 34 LazyValueInfo() : FunctionPass(ID), PImpl(0) {} |
| 35 ~LazyValueInfo() { assert(PImpl == 0 && "releaseMemory not called"); } 36 37 /// Tristate - This is used to return true/false/dunno results. 38 enum Tristate { 39 Unknown = -1, False = 0, True = 1 40 }; 41 42 --- 9 unchanged lines hidden (view full) --- 52 /// getConstant - Determine whether the specified value is known to be a 53 /// constant at the end of the specified block. Return null if not. 54 Constant *getConstant(Value *V, BasicBlock *BB); 55 56 /// getConstantOnEdge - Determine whether the specified value is known to be a 57 /// constant on the specified edge. Return null if not. 58 Constant *getConstantOnEdge(Value *V, BasicBlock *FromBB, BasicBlock *ToBB); 59 | 35 ~LazyValueInfo() { assert(PImpl == 0 && "releaseMemory not called"); } 36 37 /// Tristate - This is used to return true/false/dunno results. 38 enum Tristate { 39 Unknown = -1, False = 0, True = 1 40 }; 41 42 --- 9 unchanged lines hidden (view full) --- 52 /// getConstant - Determine whether the specified value is known to be a 53 /// constant at the end of the specified block. Return null if not. 54 Constant *getConstant(Value *V, BasicBlock *BB); 55 56 /// getConstantOnEdge - Determine whether the specified value is known to be a 57 /// constant on the specified edge. Return null if not. 58 Constant *getConstantOnEdge(Value *V, BasicBlock *FromBB, BasicBlock *ToBB); 59 |
| 60 /// threadEdge - Inform the analysis cache that we have threaded an edge from 61 /// PredBB to OldSucc to be from PredBB to NewSucc instead. 62 void threadEdge(BasicBlock *PredBB, BasicBlock *OldSucc, BasicBlock *NewSucc); |
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| 60 | 63 |
| 64 /// eraseBlock - Inform the analysis cache that we have erased a block. 65 void eraseBlock(BasicBlock *BB); 66 |
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| 61 // Implementation boilerplate. 62 63 virtual void getAnalysisUsage(AnalysisUsage &AU) const { 64 AU.setPreservesAll(); 65 } 66 virtual void releaseMemory(); 67 virtual bool runOnFunction(Function &F); 68}; 69 70} // end namespace llvm 71 72#endif 73 | 67 // Implementation boilerplate. 68 69 virtual void getAnalysisUsage(AnalysisUsage &AU) const { 70 AU.setPreservesAll(); 71 } 72 virtual void releaseMemory(); 73 virtual bool runOnFunction(Function &F); 74}; 75 76} // end namespace llvm 77 78#endif 79 |