115       MachineBasicBlock *LoopHeader, MachineBasicBlock *LoopEnd,
137       Register Reg, MachineBasicBlock *LoopHeader,
331     MachineBasicBlock *LoopHeader, MachineBasicBlock *LoopEnd,  in collectWaterfallCandidateRegisters()  argument
337   auto *MBB = LoopHeader;  in collectWaterfallCandidateRegisters()
348     if ((MBB != LoopHeader && MBB->pred_size() != 1) ||  in collectWaterfallCandidateRegisters()
349         (MBB == LoopHeader && MBB->pred_size() != 2) || MBB->succ_size() != 1) {  in collectWaterfallCandidateRegisters()
544     Register Reg, MachineBasicBlock *LoopHeader,  in optimizeWaterfallLiveRange()  argument
564       BuildMI(*LoopHeader, LoopHeader->getFirstNonPHI(), DebugLoc(),  in optimizeWaterfallLiveRange()
566   for (auto *Pred : LoopHeader->predecessors()) {  in optimizeWaterfallLiveRange()
602     } else if (Block != LoopHeader) {  in optimizeWaterfallLiveRange()
673         auto *LoopHeader = MI.getOperand(0).getMBB();  in runOnMachineFunction()  local
677                           << printMBBReference(*LoopHeader) << '\n');  in runOnMachineFunction()
683         collectWaterfallCandidateRegisters(LoopHeader, LoopEnd, CandidateRegs,  in runOnMachineFunction()
688           optimizeWaterfallLiveRange(Reg, LoopHeader, Blocks, Instructions);  in runOnMachineFunction()