//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "post-RA-sched"
#include "llvm/CodeGen/Passes.h"
#include "AggressiveAntiDepBreaker.h"
#include "AntiDepBreaker.h"
#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
+#define DEBUG_TYPE "post-RA-sched"
+
STATISTIC(NumNoops, "Number of noops inserted");
STATISTIC(NumStalls, "Number of pipeline stalls");
STATISTIC(NumFixedAnti, "Number of fixed anti-dependencies");
((AntiDepMode == TargetSubtargetInfo::ANTIDEP_ALL) ?
(AntiDepBreaker *)new AggressiveAntiDepBreaker(MF, RCI, CriticalPathRCs) :
((AntiDepMode == TargetSubtargetInfo::ANTIDEP_CRITICAL) ?
- (AntiDepBreaker *)new CriticalAntiDepBreaker(MF, RCI) : NULL));
+ (AntiDepBreaker *)new CriticalAntiDepBreaker(MF, RCI) : nullptr));
}
SchedulePostRATDList::~SchedulePostRATDList() {
// Reset the hazard recognizer and anti-dep breaker.
HazardRec->Reset();
- if (AntiDepBreak != NULL)
+ if (AntiDepBreak)
AntiDepBreak->StartBlock(BB);
}
// Build the scheduling graph.
buildSchedGraph(AA);
- if (AntiDepBreak != NULL) {
+ if (AntiDepBreak) {
unsigned Broken =
AntiDepBreak->BreakAntiDependencies(SUnits, RegionBegin, RegionEnd,
EndIndex, DbgValues);
/// instruction, which will not be scheduled.
///
void SchedulePostRATDList::Observe(MachineInstr *MI, unsigned Count) {
- if (AntiDepBreak != NULL)
+ if (AntiDepBreak)
AntiDepBreak->Observe(MI, Count, EndIndex);
}
/// FinishBlock - Clean up register live-range state.
///
void SchedulePostRATDList::finishBlock() {
- if (AntiDepBreak != NULL)
+ if (AntiDepBreak)
AntiDepBreak->FinishBlock();
// Call the superclass.
dbgs() << "*** Scheduling failed! ***\n";
SuccSU->dump(this);
dbgs() << " has been released too many times!\n";
- llvm_unreachable(0);
+ llvm_unreachable(nullptr);
}
#endif
--SuccSU->NumPredsLeft;
void SchedulePostRATDList::emitNoop(unsigned CurCycle) {
DEBUG(dbgs() << "*** Emitting noop in cycle " << CurCycle << '\n');
HazardRec->EmitNoop();
- Sequence.push_back(0); // NULL here means noop
+ Sequence.push_back(nullptr); // NULL here means noop
++NumNoops;
}
DEBUG(dbgs() << "\n*** Examining Available\n"; AvailableQueue.dump(this));
- SUnit *FoundSUnit = 0, *NotPreferredSUnit = 0;
+ SUnit *FoundSUnit = nullptr, *NotPreferredSUnit = nullptr;
bool HasNoopHazards = false;
while (!AvailableQueue.empty()) {
SUnit *CurSUnit = AvailableQueue.pop();
AvailableQueue.push(NotPreferredSUnit);
}
- NotPreferredSUnit = 0;
+ NotPreferredSUnit = nullptr;
}
// Add the nodes that aren't ready back onto the available list.
BB->splice(++OrigPrivMI, BB, DbgValue);
}
DbgValues.clear();
- FirstDbgValue = NULL;
+ FirstDbgValue = nullptr;
}