68 using BlockSet = SmallPtrSet<MachineBasicBlock *, 4>;  typedef
70 static BlockVector getSortedEntries(const BlockSet &Entries) {  in getSortedEntries()
86   ReachabilityGraph(MachineBasicBlock *Entry, const BlockSet &Blocks)  in ReachabilityGraph()
111   const BlockSet &getLoopers() const { return Loopers; }  in getLoopers()
114   const BlockSet &getLoopEntries() const { return LoopEntries; }  in getLoopEntries()
117   const BlockSet &getLoopEnterers(MachineBasicBlock *LoopEntry) const {  in getLoopEnterers()
126   const BlockSet &Blocks;
128   BlockSet Loopers, LoopEntries;
129   DenseMap<MachineBasicBlock *, BlockSet> LoopEnterers;
134   DenseMap<MachineBasicBlock *, BlockSet> Reachable;
194   LoopBlocks(MachineBasicBlock *Entry, const BlockSet &Enterers)  in LoopBlocks()
199   BlockSet &getBlocks() { return Blocks; }  in getBlocks()
203   const BlockSet &Enterers;
205   BlockSet Blocks;
211     BlockSet AddedToWorkList;  in calculate()
240   bool processRegion(MachineBasicBlock *Entry, BlockSet &Blocks,
243   void makeSingleEntryLoop(BlockSet &Entries, BlockSet &Blocks,
252     MachineBasicBlock *Entry, BlockSet &Blocks, MachineFunction &MF) {  in processRegion()
287       BlockSet MutualLoopEntries;  in processRegion()
338     BlockSet &Entries, BlockSet &Blocks, MachineFunction &MF,  in makeSingleEntryLoop()
540   BlockSet AllBlocks;  in runOnMachineFunction()