//
/// \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,