On Jul 16, 2013, at 11:34 AM, Micah Villmow <micah.villmow at smachines.com> wrote: > Is there a specific reason why std::vector is used for MachineBasicBlock Pred/Succ and MachineInstr operands? > > It seems these would be the ideal case for using SmallVector. I agree. Patches welcome. Thanks, /jakob