VNInfos don't need to be destructed anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106943 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveStackAnalysis.cpp b/lib/CodeGen/LiveStackAnalysis.cpp
index 798b9b9..709e2c6 100644
--- a/lib/CodeGen/LiveStackAnalysis.cpp
+++ b/lib/CodeGen/LiveStackAnalysis.cpp
@@ -35,8 +35,8 @@
 }
 
 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();
 }