diff --git a/llvm/lib/Analysis/InlineOrder.cpp b/llvm/lib/Analysis/InlineOrder.cpp
--- a/llvm/lib/Analysis/InlineOrder.cpp
+++ b/llvm/lib/Analysis/InlineOrder.cpp
@@ -84,7 +84,7 @@
   }
 
 private:
-  unsigned Size;
+  unsigned Size = UINT_MAX;
 };
 
 class CostPriority {
@@ -104,7 +104,7 @@
   }
 
 private:
-  int Cost;
+  int Cost = INT_MAX;
 };
 
 class CostBenefitPriority {
@@ -170,8 +170,8 @@
   }
 
 private:
-  int Cost;
-  int StaticBonusApplied;
+  int Cost = INT_MAX;
+  int StaticBonusApplied = 0;
   Optional<CostBenefitPair> CostBenefit;
 };