574   MachineBasicBlock::iterator TIE = TrueBBI.BB->end();  in ValidDiamond()  local
576   while (TIB != TIE && FIB != FIE) {  in ValidDiamond()
579       while (TIB != TIE && TIB->isDebugValue())  in ValidDiamond()
581       if (TIB == TIE)  in ValidDiamond()
603   if (TIB == TIE || FIB == FIE)  in ValidDiamond()
605   --TIE;  in ValidDiamond()
608     while (TIE != TIB && TIE->isBranch())  in ValidDiamond()
609       --TIE;  in ValidDiamond()
616   if (TIB == TIE || FIB == FIE)  in ValidDiamond()
620   while (TIE != TIB && FIE != FIB) {  in ValidDiamond()
622     if (TIE->isDebugValue()) {  in ValidDiamond()
623       while (TIE != TIB && TIE->isDebugValue())  in ValidDiamond()
624         --TIE;  in ValidDiamond()
625       if (TIE == TIB)  in ValidDiamond()
634     if (!TIE->isIdenticalTo(*FIE))  in ValidDiamond()
637     --TIE;  in ValidDiamond()