diff options
Diffstat (limited to 'include/llvm/Analysis/MemoryBuiltins.h')
-rw-r--r-- | include/llvm/Analysis/MemoryBuiltins.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/include/llvm/Analysis/MemoryBuiltins.h b/include/llvm/Analysis/MemoryBuiltins.h index 0d1ae8c..91224ad 100644 --- a/include/llvm/Analysis/MemoryBuiltins.h +++ b/include/llvm/Analysis/MemoryBuiltins.h @@ -64,6 +64,10 @@ bool isAllocLikeFn(const Value *V, const TargetLibraryInfo *TLI, bool isReallocLikeFn(const Value *V, const TargetLibraryInfo *TLI, bool LookThroughBitCast = false); +/// \brief Tests if a value is a call or invoke to a library function that +/// allocates memory and never returns null (such as operator new). +bool isOperatorNewLikeFn(const Value *V, const TargetLibraryInfo *TLI, + bool LookThroughBitCast = false); //===----------------------------------------------------------------------===// // malloc Call Utility Functions. @@ -81,7 +85,7 @@ static inline CallInst *extractMallocCall(Value *I, /// isArrayMalloc - Returns the corresponding CallInst if the instruction /// is a call to malloc whose array size can be determined and the array size /// is not constant 1. Otherwise, return NULL. -const CallInst *isArrayMalloc(const Value *I, const DataLayout *TD, +const CallInst *isArrayMalloc(const Value *I, const DataLayout *DL, const TargetLibraryInfo *TLI); /// getMallocType - Returns the PointerType resulting from the malloc call. @@ -103,7 +107,7 @@ Type *getMallocAllocatedType(const CallInst *CI, const TargetLibraryInfo *TLI); /// then return that multiple. For non-array mallocs, the multiple is /// constant 1. Otherwise, return NULL for mallocs whose array size cannot be /// determined. -Value *getMallocArraySize(CallInst *CI, const DataLayout *TD, +Value *getMallocArraySize(CallInst *CI, const DataLayout *DL, const TargetLibraryInfo *TLI, bool LookThroughSExt = false); @@ -143,7 +147,7 @@ static inline CallInst *isFreeCall(Value *I, const TargetLibraryInfo *TLI) { /// underlying object pointed to by Ptr. /// If RoundToAlign is true, then Size is rounded up to the aligment of allocas, /// byval arguments, and global variables. -bool getObjectSize(const Value *Ptr, uint64_t &Size, const DataLayout *TD, +bool getObjectSize(const Value *Ptr, uint64_t &Size, const DataLayout *DL, const TargetLibraryInfo *TLI, bool RoundToAlign = false); @@ -155,7 +159,7 @@ typedef std::pair<APInt, APInt> SizeOffsetType; class ObjectSizeOffsetVisitor : public InstVisitor<ObjectSizeOffsetVisitor, SizeOffsetType> { - const DataLayout *TD; + const DataLayout *DL; const TargetLibraryInfo *TLI; bool RoundToAlign; unsigned IntTyBits; @@ -169,7 +173,7 @@ class ObjectSizeOffsetVisitor } public: - ObjectSizeOffsetVisitor(const DataLayout *TD, const TargetLibraryInfo *TLI, + ObjectSizeOffsetVisitor(const DataLayout *DL, const TargetLibraryInfo *TLI, LLVMContext &Context, bool RoundToAlign = false); SizeOffsetType compute(Value *V); @@ -216,7 +220,7 @@ class ObjectSizeOffsetEvaluator typedef DenseMap<const Value*, WeakEvalType> CacheMapTy; typedef SmallPtrSet<const Value*, 8> PtrSetTy; - const DataLayout *TD; + const DataLayout *DL; const TargetLibraryInfo *TLI; LLVMContext &Context; BuilderTy Builder; @@ -224,6 +228,7 @@ class ObjectSizeOffsetEvaluator Value *Zero; CacheMapTy CacheMap; PtrSetTy SeenVals; + bool RoundToAlign; SizeOffsetEvalType unknown() { return std::make_pair((Value*)0, (Value*)0); @@ -231,8 +236,8 @@ class ObjectSizeOffsetEvaluator SizeOffsetEvalType compute_(Value *V); public: - ObjectSizeOffsetEvaluator(const DataLayout *TD, const TargetLibraryInfo *TLI, - LLVMContext &Context); + ObjectSizeOffsetEvaluator(const DataLayout *DL, const TargetLibraryInfo *TLI, + LLVMContext &Context, bool RoundToAlign = false); SizeOffsetEvalType compute(Value *V); bool knownSize(SizeOffsetEvalType SizeOffset) { |