/// the TargetMBB if there are no uses of it within the TargetMBB PHI nodes.
///
/// \param[in] MI the machine instruction to move.
-/// \param[in] MBB the machine basic block to move to
+/// \param[in] TargetMBB the machine basic block to move to
/// \return true if it is safe to move MI to beginning of TargetMBB,
/// false otherwise.
///
/// it's own MBB.
///
/// \param[in] MI the machine instruction to move.
-/// \param[in] MBB the machine basic block to move to
+/// \param[in] TargetMBB the machine basic block to move to
/// \return true if it is safe to move MI to end of TargetMBB,
/// false otherwise.
///