Fix a "comparison between signed and unsigned integer expressions"
warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62327 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp
index 1d42bf1..b7bfe3f 100644
--- a/lib/CodeGen/PostRASchedulerList.cpp
+++ b/lib/CodeGen/PostRASchedulerList.cpp
@@ -155,7 +155,7 @@
       if (C == Other)
         return NoHazard;
       unsigned Score = 0;
-      for (int i = 0; i != array_lengthof(Window); ++i)
+      for (unsigned i = 0; i != array_lengthof(Window); ++i)
         if (Window[i] == C)
           Score += i + 1;
       if (Score > array_lengthof(Window) * 2)