1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Target/ARM64/ARM64AddressTypePromotion.cpp b/lib/Target/ARM64/ARM64AddressTypePromotion.cpp
index b34a81081f..c6e45def9a 100644
--- a/lib/Target/ARM64/ARM64AddressTypePromotion.cpp
+++ b/lib/Target/ARM64/ARM64AddressTypePromotion.cpp
@@ -71,7 +71,7 @@ class ARM64AddressTypePromotion : public FunctionPass {
 public:
   static char ID;
   ARM64AddressTypePromotion()
-      : FunctionPass(ID), Func(NULL), ConsideredSExtType(NULL) {
+      : FunctionPass(ID), Func(nullptr), ConsideredSExtType(nullptr) {
     initializeARM64AddressTypePromotionPass(*PassRegistry::getPassRegistry());
   }
 
@@ -344,7 +344,7 @@ ARM64AddressTypePromotion::propagateSignExtension(Instructions &SExtInsts) {
         SExtForOpnd->moveBefore(Inst);
         Inst->setOperand(OpIdx, SExtForOpnd);
         // If more sext are required, new instructions will have to be created.
-        SExtForOpnd = NULL;
+        SExtForOpnd = nullptr;
       }
       if (SExtForOpnd == SExt) {
         DEBUG(dbgs() << "Sign extension is useless now\n");
@@ -466,10 +466,10 @@ void ARM64AddressTypePromotion::analyzeSExtension(Instructions &SExtInsts) {
       if (insert || AlreadySeen != SeenChains.end()) {
         DEBUG(dbgs() << "Insert\n");
         SExtInsts.push_back(SExt);
-        if (AlreadySeen != SeenChains.end() && AlreadySeen->second != NULL) {
+        if (AlreadySeen != SeenChains.end() && AlreadySeen->second != nullptr) {
           DEBUG(dbgs() << "Insert chain member\n");
           SExtInsts.push_back(AlreadySeen->second);
-          SeenChains[Last] = NULL;
+          SeenChains[Last] = nullptr;
         }
       } else {
         DEBUG(dbgs() << "Record its chain membership\n");