/// path
/// of the ScheduleDAG and break them by renaming registers.
///
- unsigned BreakAntiDependencies(std::vector<SUnit>& SUnits,
- MachineBasicBlock::iterator& Begin,
- MachineBasicBlock::iterator& End,
+ unsigned BreakAntiDependencies(const std::vector<SUnit>& SUnits,
+ MachineBasicBlock::iterator Begin,
+ MachineBasicBlock::iterator End,
unsigned InsertPosIndex);
/// Observe - Update liveness information to account for the current