Fix uninitiazed variable use problem

llvm-svn: 259630
diff --git a/llvm/lib/ProfileData/InstrProf.cpp b/llvm/lib/ProfileData/InstrProf.cpp
index a06a437..1701ec0 100644
--- a/llvm/lib/ProfileData/InstrProf.cpp
+++ b/llvm/lib/ProfileData/InstrProf.cpp
@@ -617,7 +617,7 @@
   std::sort(DetailedSummaryCutoffs.begin(), DetailedSummaryCutoffs.end());
 
   uint32_t BlocksSeen = 0;
-  uint64_t CurrSum = 0, Count;
+  uint64_t CurrSum = 0, Count = 0;
 
   for (uint32_t Cutoff : DetailedSummaryCutoffs) {
     assert(Cutoff <= 999999);