diff options
Diffstat (limited to 'lib/CodeGen/MachineSSAUpdater.cpp')
| -rw-r--r-- | lib/CodeGen/MachineSSAUpdater.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/CodeGen/MachineSSAUpdater.cpp b/lib/CodeGen/MachineSSAUpdater.cpp index 77496ad..d9173a2 100644 --- a/lib/CodeGen/MachineSSAUpdater.cpp +++ b/lib/CodeGen/MachineSSAUpdater.cpp @@ -29,6 +29,8 @@ #include "llvm/Transforms/Utils/SSAUpdaterImpl.h" using namespace llvm; +#define DEBUG_TYPE "machine-ssaupdater" + typedef DenseMap<MachineBasicBlock*, unsigned> AvailableValsTy; static AvailableValsTy &getAvailableVals(void *AV) { return *static_cast<AvailableValsTy*>(AV); @@ -36,7 +38,7 @@ static AvailableValsTy &getAvailableVals(void *AV) { MachineSSAUpdater::MachineSSAUpdater(MachineFunction &MF, SmallVectorImpl<MachineInstr*> *NewPHI) - : AV(0), InsertedPHIs(NewPHI) { + : AV(nullptr), InsertedPHIs(NewPHI) { TII = MF.getTarget().getInstrInfo(); MRI = &MF.getRegInfo(); } @@ -48,7 +50,7 @@ MachineSSAUpdater::~MachineSSAUpdater() { /// Initialize - Reset this object to get ready for a new set of SSA /// updates. ProtoValue is the value used to name PHI nodes. void MachineSSAUpdater::Initialize(unsigned V) { - if (AV == 0) + if (!AV) AV = new AvailableValsTy(); else getAvailableVals(AV).clear(); @@ -313,7 +315,7 @@ public: static MachineInstr *InstrIsPHI(MachineInstr *I) { if (I && I->isPHI()) return I; - return 0; + return nullptr; } /// ValueIsPHI - Check if the instruction that defines the specified register @@ -328,7 +330,7 @@ public: MachineInstr *PHI = ValueIsPHI(Val, Updater); if (PHI && PHI->getNumOperands() <= 1) return PHI; - return 0; + return nullptr; } /// GetPHIValue - For the specified PHI instruction, return the register |