diff --git a/include/llvm/CodeGen/LiveInterval.h b/include/llvm/CodeGen/LiveInterval.h
index 94b81062236..5c1a7ec5646 100644
--- a/include/llvm/CodeGen/LiveInterval.h
+++ b/include/llvm/CodeGen/LiveInterval.h
@@ -67,7 +67,7 @@ namespace llvm {
     } cr;
 
   public:
-    typedef SpecificBumpPtrAllocator<VNInfo> Allocator;
+    typedef BumpPtrAllocator Allocator;
 
     /// The ID number of this value.
     unsigned id;
@@ -319,8 +319,8 @@ namespace llvm {
     /// the instruction that defines the value number.
     VNInfo *getNextValue(SlotIndex def, MachineInstr *CopyMI,
                        bool isDefAccurate, VNInfo::Allocator &VNInfoAllocator) {
-      VNInfo *VNI = VNInfoAllocator.Allocate();
-      new (VNI) VNInfo((unsigned)valnos.size(), def, CopyMI);
+      VNInfo *VNI =
+        new (VNInfoAllocator) VNInfo((unsigned)valnos.size(), def, CopyMI);
       VNI->setIsDefAccurate(isDefAccurate);
       valnos.push_back(VNI);
       return VNI;
@@ -330,8 +330,8 @@ namespace llvm {
     /// for the Value number.
     VNInfo *createValueCopy(const VNInfo *orig,
                             VNInfo::Allocator &VNInfoAllocator) {
-      VNInfo *VNI = VNInfoAllocator.Allocate();
-      new (VNI) VNInfo((unsigned)valnos.size(), *orig);
+      VNInfo *VNI =
+        new (VNInfoAllocator) VNInfo((unsigned)valnos.size(), *orig);
       valnos.push_back(VNI);
       return VNI;
     }
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index fbf2833756e..5f5aa3b203f 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -87,8 +87,8 @@ void LiveIntervals::releaseMemory() {
   
   r2iMap_.clear();
 
-  // Release VNInfo memroy regions after all VNInfo objects are dtor'd.
-  VNInfoAllocator.DestroyAll();
+  // Release VNInfo memory regions, VNInfo objects don't need to be dtor'd.
+  VNInfoAllocator.Reset();
   while (!CloneMIs.empty()) {
     MachineInstr *MI = CloneMIs.back();
     CloneMIs.pop_back();
diff --git a/lib/CodeGen/LiveStackAnalysis.cpp b/lib/CodeGen/LiveStackAnalysis.cpp
index 798b9b939cd..709e2c6d5ca 100644
--- a/lib/CodeGen/LiveStackAnalysis.cpp
+++ b/lib/CodeGen/LiveStackAnalysis.cpp
@@ -35,8 +35,8 @@ void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const {
 }
 
 void LiveStacks::releaseMemory() {
-  // Release VNInfo memroy regions after all VNInfo objects are dtor'd.
-  VNInfoAllocator.DestroyAll();
+  // Release VNInfo memory regions, VNInfo objects don't need to be dtor'd.
+  VNInfoAllocator.Reset();
   S2IMap.clear();
   S2RCMap.clear();
 }