if (MBB.empty())
return true;
- MachineBasicBlock::const_iterator iter = MBB.end();
+ MachineBasicBlock::iterator iter = MBB.end();
const MachineInstr& instLast1 = *--iter;
const MCInstrDesc &desc1 = instLast1.getDesc();
// for special case that MBB has only 1 instruction