#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
#define DEBUG_TYPE "tailduplication"
if (skipOptnoneFunction(*MF.getFunction()))
return false;
- TII = MF.getTarget().getInstrInfo();
- TRI = MF.getTarget().getRegisterInfo();
+ TII = MF.getSubtarget().getInstrInfo();
+ TRI = MF.getSubtarget().getRegisterInfo();
MRI = &MF.getRegInfo();
MMI = getAnalysisIfAvailable<MachineModuleInfo>();
MBPI = &getAnalysis<MachineBranchProbabilityInfo>();
RS->enterBasicBlock(PredBB);
if (!PredBB->empty())
RS->forward(std::prev(PredBB->end()));
- BitVector RegsLiveAtExit(TRI->getNumRegs());
- RS->getRegsUsed(RegsLiveAtExit, false);
for (MachineBasicBlock::livein_iterator I = TailBB->livein_begin(),
E = TailBB->livein_end(); I != E; ++I) {
- if (!RegsLiveAtExit[*I])
+ if (!RS->isRegUsed(*I, false))
// If a register is previously livein to the tail but it's not live
// at the end of predecessor BB, then it should be added to its
// livein list.