155   auto *Defs = MSSA->getWritableBlockDefs(MA->getBlock());  in getPreviousDefInBlock()  local
158   if (Defs) {  in getPreviousDefInBlock()
163       if (Iter != Defs->rend())  in getPreviousDefInBlock()
182   auto *Defs = MSSA->getWritableBlockDefs(BB);  in getPreviousDefFromEnd()  local
184   if (Defs) {  in getPreviousDefFromEnd()
185     CachedPreviousDef.insert({BB, &*Defs->rbegin()});  in getPreviousDefFromEnd()
186     return &*Defs->rbegin();  in getPreviousDefFromEnd()
263     auto *Defs = MSSA->getBlockDefs(MU->getBlock());  in insertUse()  local
264     (void)Defs;  in insertUse()
265     assert((!Defs || (++Defs->begin() == Defs->end())) &&  in insertUse()
273     if (auto *Defs = MSSA->getWritableBlockDefs(StartBlock)) {  in insertUse()  local
274       MemoryAccess *FirstDef = &*Defs->begin();  in insertUse()
470     auto *Defs = MSSA->getWritableBlockDefs(NewDef->getBlock());  in fixupDefs()  local
478     if (++DefIter != Defs->end()) {  in fixupDefs()
498       if (auto *Defs = MSSA->getWritableBlockDefs(FixupBlock)) {  in fixupDefs()  local
499         auto *FirstDef = &*Defs->begin();  in fixupDefs()
868       MemorySSA::DefsList *Defs = MSSA->getWritableBlockDefs(BB);  in applyInsertUpdates()  local
870       if (Defs)  in applyInsertUpdates()
871         return &*(--Defs->end());  in applyInsertUpdates()
1241   auto *Defs = MSSA->getWritableBlockDefs(From);  in moveAllAccesses()  local
1242   if (Defs && !Defs->empty())  in moveAllAccesses()
1243     if (auto *Phi = dyn_cast<MemoryPhi>(&*Defs->begin()))  in moveAllAccesses()