[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.
llvm-svn: 206142
diff --git a/llvm/lib/CodeGen/SelectionDAG/ResourcePriorityQueue.cpp b/llvm/lib/CodeGen/SelectionDAG/ResourcePriorityQueue.cpp
index 3b3424d..c2fc8c9 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ResourcePriorityQueue.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ResourcePriorityQueue.cpp
@@ -49,7 +49,7 @@
TLI = IS->getTargetLowering();
const TargetMachine &tm = (*IS->MF).getTarget();
- ResourcesModel = tm.getInstrInfo()->CreateTargetScheduleState(&tm,NULL);
+ ResourcesModel = tm.getInstrInfo()->CreateTargetScheduleState(&tm,nullptr);
// This hard requirement could be relaxed, but for now
// do not let it procede.
assert (ResourcesModel && "Unimplemented CreateTargetScheduleState.");
@@ -214,7 +214,7 @@
/// getSingleUnscheduledPred - If there is exactly one unscheduled predecessor
/// of SU, return it, otherwise return null.
SUnit *ResourcePriorityQueue::getSingleUnscheduledPred(SUnit *SU) {
- SUnit *OnlyAvailablePred = 0;
+ SUnit *OnlyAvailablePred = nullptr;
for (SUnit::const_pred_iterator I = SU->Preds.begin(), E = SU->Preds.end();
I != E; ++I) {
SUnit &Pred = *I->getSUnit();
@@ -222,7 +222,7 @@
// We found an available, but not scheduled, predecessor. If it's the
// only one we have found, keep track of it... otherwise give up.
if (OnlyAvailablePred && OnlyAvailablePred != &Pred)
- return 0;
+ return nullptr;
OnlyAvailablePred = &Pred;
}
}
@@ -581,7 +581,7 @@
if (SU->isAvailable) return; // All preds scheduled.
SUnit *OnlyAvailablePred = getSingleUnscheduledPred(SU);
- if (OnlyAvailablePred == 0 || !OnlyAvailablePred->isAvailable)
+ if (!OnlyAvailablePred || !OnlyAvailablePred->isAvailable)
return;
// Okay, we found a single predecessor that is available, but not scheduled.
@@ -598,7 +598,7 @@
/// to be placed in scheduling sequence.
SUnit *ResourcePriorityQueue::pop() {
if (empty())
- return 0;
+ return nullptr;
std::vector<SUnit *>::iterator Best = Queue.begin();
if (!DisableDFASched) {