// can compute this set by simulating liveness backwards from the end of BB2.
LiveRegUnits DontKill;
for (MachineBasicBlock::reverse_instr_iterator I = BBI2->BB->rbegin(),
- E = MachineBasicBlock::reverse_iterator(DI2); I != E; ++I) {
+ E = MachineBasicBlock::reverse_instr_iterator(&*DI2); I != E; ++I) {
DontKill.StepBackward(*I, *TRI);
}