Target/PowerPC/PPCHazardRecognizers.cpp

24 bool PPCDispatchGroupSBHazardRecognizer::isLoadAfterStore(SUnit *SU) {
26   if (isBCTRAfterSet(SU))
29   const MCInstrDesc *MCID = DAG->getInstrDesc(SU);
36   // SU is a load; for any predecessors in this dispatch group, that are stores,
38   for (unsigned i = 0, ie = (unsigned) SU->Preds.size(); i != ie; ++i) {
39     const MCInstrDesc *PredMCID = DAG->getInstrDesc(SU->Preds[i].getSUnit());
43     if (!SU->Preds[i].isNormalMemory() && !SU->Preds[i].isBarrier())
47       if (SU->Preds[i].getSUnit() == CurGroup[j])
54 bool PPCDispatchGroupSBHazardRecognizer::isBCTRAfterSet(SUnit *SU) {
55   const MCInstrDesc *MCID = DAG->getInstrDesc(SU);
62   // SU is a branch; for any predecessors in this dispatch group, with which we
64   for (unsigned i = 0, ie = (unsigned) SU->Preds.size(); i != ie; ++i) {
65     const MCInstrDesc *PredMCID = DAG->getInstrDesc(SU->Preds[i].getSUnit());
69     if (SU->Preds[i].isCtrl())
73       if (SU->Preds[i].getSUnit() == CurGroup[j])
139 PPCDispatchGroupSBHazardRecognizer::getHazardType(SUnit *SU, int Stalls) {
140   if (Stalls == 0 && isLoadAfterStore(SU))
143   return ScoreboardHazardRecognizer::getHazardType(SU, Stalls);
146 bool PPCDispatchGroupSBHazardRecognizer::ShouldPreferAnother(SUnit *SU) {
147   const MCInstrDesc *MCID = DAG->getInstrDesc(SU);
152   return ScoreboardHazardRecognizer::ShouldPreferAnother(SU);
155 unsigned PPCDispatchGroupSBHazardRecognizer::PreEmitNoops(SUnit *SU) {
159   if (isLoadAfterStore(SU) && CurSlots < 6) {
171   return ScoreboardHazardRecognizer::PreEmitNoops(SU);
174 void PPCDispatchGroupSBHazardRecognizer::EmitInstruction(SUnit *SU) {
175   const MCInstrDesc *MCID = DAG->getInstrDesc(SU);
182       LLVM_DEBUG(DAG->dumpNode(*SU));
195       CurGroup.push_back(SU);
202   return ScoreboardHazardRecognizer::EmitInstruction(SU);
325 getHazardType(SUnit *SU, int Stalls) {
328   MachineInstr *MI = SU->getInstr();
385 void PPCHazardRecognizer970::EmitInstruction(SUnit *SU) {
386   MachineInstr *MI = SU->getInstr();