diff --git a/llvm/lib/Analysis/InlineCost.cpp b/llvm/lib/Analysis/InlineCost.cpp
--- a/llvm/lib/Analysis/InlineCost.cpp
+++ b/llvm/lib/Analysis/InlineCost.cpp
@@ -1097,9 +1097,9 @@
     set(InlineCostFeatureIndex::SROASavings, SROACostSavingOpportunities);
 
     if (NumVectorInstructions <= NumInstructions / 10)
-      increment(InlineCostFeatureIndex::Threshold, -1 * VectorBonus);
+      Threshold -= VectorBonus;
     else if (NumVectorInstructions <= NumInstructions / 2)
-      increment(InlineCostFeatureIndex::Threshold, -1 * (VectorBonus / 2));
+      Threshold -= VectorBonus / 2;
 
     set(InlineCostFeatureIndex::Threshold, Threshold);