ScheduleDAG::~ScheduleDAG() {}
-/// getInstrDesc helper to handle SDNodes.
-const MCInstrDesc *ScheduleDAG::getNodeDesc(const SDNode *Node) const {
- if (!Node || !Node->isMachineOpcode()) return NULL;
- return &TII->get(Node->getMachineOpcode());
-}
-
-/// dump - dump the schedule.
-void ScheduleDAG::dumpSchedule() const {
- for (unsigned i = 0, e = Sequence.size(); i != e; i++) {
- if (SUnit *SU = Sequence[i])
- SU->dump(this);
- else
- dbgs() << "**** NOOP ****\n";
- }
-}
-
-
-/// Run - perform scheduling.
-///
-void ScheduleDAG::Run(MachineBasicBlock *bb,
- MachineBasicBlock::iterator insertPos) {
- BB = bb;
- InsertPos = insertPos;
-
+/// Clear the DAG state (e.g. between scheduling regions).
+void ScheduleDAG::clearDAG() {
SUnits.clear();
- Sequence.clear();
EntrySU = SUnit();
ExitSU = SUnit();
+}
- Schedule();
-
- DEBUG({
- dbgs() << "*** Final schedule ***\n";
- dumpSchedule();
- dbgs() << '\n';
- });
+/// getInstrDesc helper to handle SDNodes.
+const MCInstrDesc *ScheduleDAG::getNodeDesc(const SDNode *Node) const {
+ if (!Node || !Node->isMachineOpcode()) return NULL;
+ return &TII->get(Node->getMachineOpcode());
}
/// addPred - This adds the specified edge as a pred of the current node if