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[MiSched] - Simplify ProcResEntry access

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Reviewed by: @MatzeB
Differential Revision: https://reviews.llvm.org/D38447

llvm-svn: 314775
This commit is contained in:
Javed Absar 2017-10-03 09:35:04 +00:00
parent 14e90c0414
commit f137acb8b5
1 changed files with 8 additions and 6 deletions
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14
lib/CodeGen/MachineScheduler.cpp
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@ -1962,16 +1962,18 @@ bool SchedBoundary::checkHazard(SUnit *SU) {
if (SchedModel->hasInstrSchedModel() && SU->hasReservedResource) {
const MCSchedClassDesc *SC = DAG->getSchedClass(SU);
for (TargetSchedModel::ProcResIter
PI = SchedModel->getWriteProcResBegin(SC),
PE = SchedModel->getWriteProcResEnd(SC); PI != PE; ++PI) {
unsigned NRCycle = getNextResourceCycle(PI->ProcResourceIdx, PI->Cycles);
for (const MCWriteProcResEntry &PE :
make_range(SchedModel->getWriteProcResBegin(SC),
SchedModel->getWriteProcResEnd(SC))) {
unsigned ResIdx = PE.ProcResourceIdx;
unsigned Cycles = PE.Cycles;
unsigned NRCycle = getNextResourceCycle(ResIdx, Cycles);
if (NRCycle > CurrCycle) {
#ifndef NDEBUG
MaxObservedStall = std::max(PI->Cycles, MaxObservedStall);
MaxObservedStall = std::max(Cycles, MaxObservedStall);
#endif
DEBUG(dbgs() << " SU(" << SU->NodeNum << ") "
<< SchedModel->getResourceName(PI->ProcResourceIdx)
<< SchedModel->getResourceName(ResIdx)
<< "=" << NRCycle << "c\n");
return true;
}