684   Loop &Unloop;  member in __anon2f4fe09d0511::UnloopUpdater
701       : Unloop(*UL), LI(LInfo), DFS(UL), FoundIB(false) {}  in UnloopUpdater()
717   if (Unloop.getNumBlocks()) {  in updateBlockParents()
728         assert((NL != &Unloop && (!NL || NL->contains(&Unloop))) &&  in updateBlockParents()
734         assert((FoundIB || Unloop.contains(L)) && "uninitialized successor");  in updateBlockParents()
742     assert(NIters < Unloop.getNumBlocks() && "runaway iterative algorithm");  in updateBlockParents()
754         assert(NL != &Unloop && (!NL || NL->contains(&Unloop)) &&  in updateBlockParents()
767   for (BasicBlock *BB : Unloop.blocks()) {  in removeBlocksFromAncestors()
769     if (Unloop.contains(OuterParent)) {  in removeBlocksFromAncestors()
770       while (OuterParent->getParentLoop() != &Unloop)  in removeBlocksFromAncestors()
776     for (Loop *OldParent = Unloop.getParentLoop(); OldParent != OuterParent;  in removeBlocksFromAncestors()
786   while (!Unloop.isInnermost()) {  in updateSubloopParents()
787     Loop *Subloop = *std::prev(Unloop.end());  in updateSubloopParents()
788     Unloop.removeChildLoop(std::prev(Unloop.end()));  in updateSubloopParents()
810   if (NearLoop != &Unloop && Unloop.contains(NearLoop)) {  in getNearestLoop()
813     while (Subloop->getParentLoop() != &Unloop) {  in getNearestLoop()
818     NearLoop = SubloopParents.insert({Subloop, &Unloop}).first->second;  in getNearestLoop()
831     if (L == &Unloop) {  in getNearestLoop()
837     if (L != &Unloop && Unloop.contains(L)) {  in getNearestLoop()
843       assert(L->getParentLoop() == &Unloop && "cannot skip into nested loops");  in getNearestLoop()
849     if (L == &Unloop) {  in getNearestLoop()
853     if (L && !L->contains(&Unloop)) {  in getNearestLoop()
857     if (NearLoop == &Unloop || !NearLoop || NearLoop->contains(L))  in getNearestLoop()
878 void LoopInfo::erase(Loop *Unloop) {  in erase()  argument
879   assert(!Unloop->isInvalid() && "Loop has already been erased!");  in erase()
881   auto InvalidateOnExit = make_scope_exit([&]() { destroy(Unloop); });  in erase()
884   if (Unloop->isOutermost()) {  in erase()
886     for (BasicBlock *BB : Unloop->blocks()) {  in erase()
888       if (getLoopFor(BB) != Unloop)  in erase()
899       if (*I == Unloop) {  in erase()
906     while (!Unloop->isInnermost())  in erase()
907       addTopLevelLoop(Unloop->removeChildLoop(std::prev(Unloop->end())));  in erase()
914   UnloopUpdater Updater(Unloop, this);  in erase()
924   Loop *ParentLoop = Unloop->getParentLoop();  in erase()
927     if (*I == Unloop) {  in erase()