diff options
| -rw-r--r-- | llvm/include/llvm/Analysis/AliasSetTracker.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/llvm/include/llvm/Analysis/AliasSetTracker.h b/llvm/include/llvm/Analysis/AliasSetTracker.h index 3d4d99f0349..d9afe300035 100644 --- a/llvm/include/llvm/Analysis/AliasSetTracker.h +++ b/llvm/include/llvm/Analysis/AliasSetTracker.h @@ -129,7 +129,6 @@ public: // stores. bool isVolatile() const { return Volatile; } - /// isForwardingAliasSet - Return true if this alias set should be ignored as /// part of the AliasSetTracker object. bool isForwardingAliasSet() const { return Forward; } @@ -143,6 +142,7 @@ public: class iterator; iterator begin() const { return iterator(PtrList); } iterator end() const { return iterator(); } + bool empty() const { return PtrList == 0; } void print(std::ostream &OS) const; void dump() const; @@ -168,6 +168,9 @@ public: return *CurNode; } value_type *operator->() const { return &operator*(); } + + Value *getPointer() const { return CurNode->first; } + unsigned getSize() const { return CurNode->second.getSize(); } iterator& operator++() { // Preincrement assert(CurNode && "Advancing past AliasSet.end()!"); @@ -267,6 +270,18 @@ public: void add(BasicBlock &BB); // Add all instructions in basic block void add(const AliasSetTracker &AST); // Add alias relations from another AST + /// remove methods - These methods are used to remove all entries that might + /// be aliased by the specified instruction. These methods return true if any + /// alias sets were eliminated. + bool remove(LoadInst *LI); + bool remove(StoreInst *SI); + bool remove(CallSite CS); + bool remove(CallInst *CI) { return remove(CallSite(CI)); } + bool remove(InvokeInst *II) { return remove(CallSite(II)); } + bool remove(Instruction *I); + void remove(AliasSet &AS); + + /// deleteValue method - This method is used to remove a pointer value from /// the AliasSetTracker entirely. It should be used when an instruction is /// deleted from the program to update the AST. If you don't use this, you @@ -283,6 +298,12 @@ public: /// pointer didn't alias anything). AliasSet &getAliasSetForPointer(Value *P, unsigned Size, bool *New = 0); + /// getAliasSetForPointerIfExists - Return the alias set containing the + /// location specified if one exists, otherwise return null. + AliasSet *getAliasSetForPointerIfExists(Value *P, unsigned Size) { + return findAliasSetForPointer(P, Size); + } + /// getAliasAnalysis - Return the underlying alias analysis object used by /// this tracker. AliasAnalysis &getAliasAnalysis() const { return AA; } |
