Remove useless call to isOSCygMing()

[oota-llvm.git] / include / llvm / ADT / MapVector.h

diff --git a/include/llvm/ADT/MapVector.h b/include/llvm/ADT/MapVector.h
index 14c49c5bf4b406f0272028fe4f9fce944355c207..1331b15b2d2944565b0ff2a3d554f91e2d48957c 100644 (file)
--- a/include/llvm/ADT/MapVector.h
+++ b/include/llvm/ADT/MapVector.h
@@ -18,6 +18,7 @@
 #define LLVM_ADT_MAPVECTOR_H
 
 #include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
 #include <vector>
 
 namespace llvm {
@@ -181,6 +182,14 @@ void MapVector<KeyT, ValueT, MapType, VectorType>::remove_if(Function Pred) {
   Vector.erase(O, Vector.end());
 }
 
+/// \brief A MapVector that performs no allocations if smaller than a certain
+/// size.
+template <typename KeyT, typename ValueT, unsigned N>
+struct SmallMapVector
+    : MapVector<KeyT, ValueT, SmallDenseMap<KeyT, unsigned, N>,
+                SmallVector<std::pair<KeyT, ValueT>, N>> {
+};
+
 } // end namespace llvm
 
 #endif