10 ///       exports.
44   // Position exports should occur as soon as possible in the shader  in sortChain()
45   // for optimal performance.  This moves position exports before  in sortChain()
46   // other exports while preserving the order within different export  in sortChain()
59 static void buildCluster(ArrayRef<SUnit *> Exports, ScheduleDAGInstrs *DAG) {  in buildCluster()  argument
60   SUnit *ChainHead = Exports.front();  in buildCluster()
63   for (unsigned Idx = 0, End = Exports.size() - 1; Idx < End; ++Idx) {  in buildCluster()
64     SUnit *SUa = Exports[Idx];  in buildCluster()
65     SUnit *SUb = Exports[Idx + 1];  in buildCluster()
75     // New barrier edge ordering exports  in buildCluster()
113   // Pass through DAG gathering a list of exports and removing barrier edges  in apply()
114   // creating dependencies on exports. Freeing exports of successor edges  in apply()
116   // on exports.  Edges will be added later to order the exports.  in apply()
133   // Apply clustering if there are multiple exports  in apply()