1332     SmallVectorImpl<MemoryAccess *> &VersionStack,  in optimizeUsesInBlock()  argument
1344         !VersionStack.empty() &&  in optimizeUsesInBlock()
1346     BasicBlock *BackBlock = VersionStack.back()->getBlock();  in optimizeUsesInBlock()
1349     while (VersionStack.back()->getBlock() == BackBlock)  in optimizeUsesInBlock()
1350       VersionStack.pop_back();  in optimizeUsesInBlock()
1357       VersionStack.push_back(&MA);  in optimizeUsesInBlock()
1390         LocInfo.LowerBoundBlock = VersionStack[0]->getBlock();  in optimizeUsesInBlock()
1401       LocInfo.LastKill = VersionStack.size() - 1;  in optimizeUsesInBlock()
1407     assert(LocInfo.LowerBound < VersionStack.size() &&  in optimizeUsesInBlock()
1409     assert(LocInfo.LastKill < VersionStack.size() &&  in optimizeUsesInBlock()
1412     unsigned long UpperBound = VersionStack.size() - 1;  in optimizeUsesInBlock()
1428       if (isa<MemoryPhi>(VersionStack[UpperBound])) {  in optimizeUsesInBlock()
1436         while (VersionStack[UpperBound] != Result) {  in optimizeUsesInBlock()
1444       MemoryDef *MD = cast<MemoryDef>(VersionStack[UpperBound]);  in optimizeUsesInBlock()
1455       MU->setDefiningAccess(VersionStack[UpperBound], true);  in optimizeUsesInBlock()
1460       MU->setDefiningAccess(VersionStack[LocInfo.LastKill], true);  in optimizeUsesInBlock()
1462     LocInfo.LowerBound = VersionStack.size() - 1;  in optimizeUsesInBlock()
1469   SmallVector<MemoryAccess *, 16> VersionStack;  in optimizeUses()  local
1471   VersionStack.push_back(MSSA->getLiveOnEntryDef());  in optimizeUses()
1477     optimizeUsesInBlock(DomNode->getBlock(), StackEpoch, PopEpoch, VersionStack,  in optimizeUses()