+
+ /// \brief PostRA helper for rewriting kill flags.
+ void startBlockForKills(MachineBasicBlock *BB);
+
+ /// \brief Toggle a register operand kill flag.
+ ///
+ /// Other adjustments may be made to the instruction if necessary. Return
+ /// true if the operand has been deleted, false if not.
+ bool toggleKillFlag(MachineInstr *MI, MachineOperand &MO);