+ unsigned getMaxLookAhead() const { return MaxLookAhead; }
+
+ bool isEnabled() const { return MaxLookAhead != 0; }
+
+ /// atIssueLimit - Return true if no more instructions may be issued in this
+ /// cycle.
+ ///
+ /// FIXME: remove this once MachineScheduler is the only client.
+ virtual bool atIssueLimit() const { return false; }
+