Use of UINT_MAX requires climits, at least when

compiling with gcc 4.3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51145 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/LoopUnroll.cpp

@@ -12,6 +12,7 @@
 // counts of loops easily.
 //===----------------------------------------------------------------------===//
 
+#include <climits>
 #define DEBUG_TYPE "loop-unroll"
 #include "llvm/IntrinsicInst.h"
 #include "llvm/Transforms/Scalar.h"