682   Loop &Unloop;  member in __anon951701df0511::UnloopUpdater
698   UnloopUpdater(Loop *UL, LoopInfo *LInfo) : Unloop(*UL), LI(LInfo), DFS(UL) {}  in UnloopUpdater()
714   if (Unloop.getNumBlocks()) {  in updateBlockParents()
725         assert((NL != &Unloop && (!NL || NL->contains(&Unloop))) &&  in updateBlockParents()
731         assert((FoundIB || Unloop.contains(L)) && "uninitialized successor");  in updateBlockParents()
739     assert(NIters < Unloop.getNumBlocks() && "runaway iterative algorithm");  in updateBlockParents()
752         assert(NL != &Unloop && (!NL || NL->contains(&Unloop)) &&  in updateBlockParents()
765   for (BasicBlock *BB : Unloop.blocks()) {  in removeBlocksFromAncestors()
767     if (Unloop.contains(OuterParent)) {  in removeBlocksFromAncestors()
768       while (OuterParent->getParentLoop() != &Unloop)  in removeBlocksFromAncestors()
774     for (Loop *OldParent = Unloop.getParentLoop(); OldParent != OuterParent;  in removeBlocksFromAncestors()
784   while (!Unloop.isInnermost()) {  in updateSubloopParents()
785     Loop *Subloop = *std::prev(Unloop.end());  in updateSubloopParents()
786     Unloop.removeChildLoop(std::prev(Unloop.end()));  in updateSubloopParents()
808   if (NearLoop != &Unloop && Unloop.contains(NearLoop)) {  in getNearestLoop()
811     while (Subloop->getParentLoop() != &Unloop) {  in getNearestLoop()
816     NearLoop = SubloopParents.insert({Subloop, &Unloop}).first->second;  in getNearestLoop()
829     if (L == &Unloop) {  in getNearestLoop()
835     if (L != &Unloop && Unloop.contains(L)) {  in getNearestLoop()
841       assert(L->getParentLoop() == &Unloop && "cannot skip into nested loops");  in getNearestLoop()
847     if (L == &Unloop) {  in getNearestLoop()
851     if (L && !L->contains(&Unloop)) {  in getNearestLoop()
855     if (NearLoop == &Unloop || !NearLoop || NearLoop->contains(L))  in getNearestLoop()
876 void LoopInfo::erase(Loop *Unloop) {  in erase()  argument
877   assert(!Unloop->isInvalid() && "Loop has already been erased!");  in erase()
879   auto InvalidateOnExit = make_scope_exit([&]() { destroy(Unloop); });  in erase()
882   if (Unloop->isOutermost()) {  in erase()
884     for (BasicBlock *BB : Unloop->blocks()) {  in erase()
886       if (getLoopFor(BB) != Unloop)  in erase()
897       if (*I == Unloop) {  in erase()
904     while (!Unloop->isInnermost())  in erase()
905       addTopLevelLoop(Unloop->removeChildLoop(std::prev(Unloop->end())));  in erase()
912   UnloopUpdater Updater(Unloop, this);  in erase()
922   Loop *ParentLoop = Unloop->getParentLoop();  in erase()
925     if (*I == Unloop) {  in erase()