1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
index 183e1a1e0a4..b562c425aa6 100644
--- a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -66,8 +66,8 @@ namespace {
 
     virtual bool runOnSCC(const std::vector<CallGraphNode *> &SCC);
     static char ID; // Pass identification, replacement for typeid
-    ArgPromotion(unsigned maxElements = 3) : CallGraphSCCPass(&ID),
-                                             maxElements(maxElements) {}
+    explicit ArgPromotion(unsigned maxElements = 3)
+      : CallGraphSCCPass(&ID), maxElements(maxElements) {}
 
     /// A vector used to hold the indices of a single GEP instruction
     typedef std::vector<uint64_t> IndicesVector;