More explicit keywords.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40673 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/LowerSelect.cpp b/lib/Transforms/Utils/LowerSelect.cpp
index 1882695..317e84a 100644
--- a/lib/Transforms/Utils/LowerSelect.cpp
+++ b/lib/Transforms/Utils/LowerSelect.cpp
@@ -34,7 +34,7 @@
     bool OnlyFP;   // Only lower FP select instructions?
   public:
     static char ID; // Pass identification, replacement for typeid
-    LowerSelect(bool onlyfp = false) : FunctionPass((intptr_t)&ID), 
+    explicit LowerSelect(bool onlyfp = false) : FunctionPass((intptr_t)&ID), 
       OnlyFP(onlyfp) {}
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {