694   Loop &Unloop;  member in __anon118e20690511::UnloopUpdater
710   UnloopUpdater(Loop *UL, LoopInfo *LInfo) : Unloop(*UL), LI(LInfo), DFS(UL) {}  in UnloopUpdater()
726   if (Unloop.getNumBlocks()) {  in updateBlockParents()
737         assert((NL != &Unloop && (!NL || NL->contains(&Unloop))) &&  in updateBlockParents()
743         assert((FoundIB || Unloop.contains(L)) && "uninitialized successor");  in updateBlockParents()
751     assert(NIters < Unloop.getNumBlocks() && "runaway iterative algorithm");  in updateBlockParents()
764         assert(NL != &Unloop && (!NL || NL->contains(&Unloop)) &&  in updateBlockParents()
777   for (BasicBlock *BB : Unloop.blocks()) {  in removeBlocksFromAncestors()
779     if (Unloop.contains(OuterParent)) {  in removeBlocksFromAncestors()
780       while (OuterParent->getParentLoop() != &Unloop)  in removeBlocksFromAncestors()
786     for (Loop *OldParent = Unloop.getParentLoop(); OldParent != OuterParent;  in removeBlocksFromAncestors()
796   while (!Unloop.isInnermost()) {  in updateSubloopParents()
797     Loop *Subloop = *std::prev(Unloop.end());  in updateSubloopParents()
798     Unloop.removeChildLoop(std::prev(Unloop.end()));  in updateSubloopParents()
820   if (NearLoop != &Unloop && Unloop.contains(NearLoop)) {  in getNearestLoop()
823     while (Subloop->getParentLoop() != &Unloop) {  in getNearestLoop()
828     NearLoop = SubloopParents.insert({Subloop, &Unloop}).first->second;  in getNearestLoop()
840     if (L == &Unloop) {  in getNearestLoop()
846     if (L != &Unloop && Unloop.contains(L)) {  in getNearestLoop()
852       assert(L->getParentLoop() == &Unloop && "cannot skip into nested loops");  in getNearestLoop()
858     if (L == &Unloop) {  in getNearestLoop()
862     if (L && !L->contains(&Unloop)) {  in getNearestLoop()
866     if (NearLoop == &Unloop || !NearLoop || NearLoop->contains(L))  in getNearestLoop()
887 void LoopInfo::erase(Loop *Unloop) {  in erase()  argument
888   assert(!Unloop->isInvalid() && "Loop has already been erased!");  in erase()
890   auto InvalidateOnExit = make_scope_exit([&]() { destroy(Unloop); });  in erase()
893   if (Unloop->isOutermost()) {  in erase()
895     for (BasicBlock *BB : Unloop->blocks()) {  in erase()
897       if (getLoopFor(BB) != Unloop)  in erase()
908       if (*I == Unloop) {  in erase()
915     while (!Unloop->isInnermost())  in erase()
916       addTopLevelLoop(Unloop->removeChildLoop(std::prev(Unloop->end())));  in erase()
923   UnloopUpdater Updater(Unloop, this);  in erase()
933   Loop *ParentLoop = Unloop->getParentLoop();  in erase()
936     if (*I == Unloop) {  in erase()