138   User *Obj = reinterpret_cast<User*>(End);  in allocateFixedOperandUser()  local
139   Obj->NumUserOperands = Us;  in allocateFixedOperandUser()
140   Obj->HasHungOffUses = false;  in allocateFixedOperandUser()
141   Obj->HasDescriptor = DescBytes != 0;  in allocateFixedOperandUser()
143     new (Start) Use(Obj);  in allocateFixedOperandUser()
150   return Obj;  in allocateFixedOperandUser()
165   User *Obj = reinterpret_cast<User *>(HungOffOperandList + 1);  in operator new()  local
166   Obj->NumUserOperands = 0;  in operator new()
167   Obj->HasHungOffUses = true;  in operator new()
168   Obj->HasDescriptor = false;  in operator new()
170   return Obj;  in operator new()
182   User *Obj = static_cast<User *>(Usr);  in operator delete()  local
183   if (Obj->HasHungOffUses) {  in operator delete()
184     assert(!Obj->HasDescriptor && "not supported!");  in operator delete()
188     Use::zap(*HungOffOperandList, *HungOffOperandList + Obj->NumUserOperands,  in operator delete()
191   } else if (Obj->HasDescriptor) {  in operator delete()
192     Use *UseBegin = static_cast<Use *>(Usr) - Obj->NumUserOperands;  in operator delete()
193     Use::zap(UseBegin, UseBegin + Obj->NumUserOperands, /* Delete */ false);  in operator delete()
199     Use *Storage = static_cast<Use *>(Usr) - Obj->NumUserOperands;  in operator delete()
200     Use::zap(Storage, Storage + Obj->NumUserOperands,  in operator delete()