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Clarify comment for function getObjectSize

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Clarify that we mean the object starting at the pointer to the end of the
underlying object and not the size of the whole allocated object.

llvm-svn: 176491
This commit is contained in:
Arnold Schwaighofer 2013-03-05 16:53:24 +00:00
parent 5f7e2bf434
commit 7475aaf23e
1 changed files with 3 additions and 1 deletions
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4
include/llvm/Analysis/MemoryBuiltins.h
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@ -138,7 +138,9 @@ static inline CallInst *isFreeCall(Value *I, const TargetLibraryInfo *TLI) {
//
/// \brief Compute the size of the object pointed by Ptr. Returns true and the
/// object size in Size if successful, and false otherwise.
// object size in Size if successful, and false otherwise. In this context, by
// object we mean the region of memory starting at Ptr to the end of the
// 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,