diff --git a/llvm/include/llvm/CodeGen/LiveInterval.h b/llvm/include/llvm/CodeGen/LiveInterval.h
index 27c53556e421..177280916a18 100644
--- a/llvm/include/llvm/CodeGen/LiveInterval.h
+++ b/llvm/include/llvm/CodeGen/LiveInterval.h
@@ -190,8 +190,8 @@ namespace llvm {
       void dump() const;
     };
 
-    typedef SmallVector<Segment,4> Segments;
-    typedef SmallVector<VNInfo*,4> VNInfoList;
+    typedef SmallVector<Segment, 2> Segments;
+    typedef SmallVector<VNInfo *, 2> VNInfoList;
 
     Segments segments;   // the liveness segments
     VNInfoList valnos;   // value#'s