Add explicit keywords.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64915 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/FPMover.cpp b/lib/Target/Sparc/FPMover.cpp
index 5faf2a1..f72a4c4 100644
--- a/lib/Target/Sparc/FPMover.cpp
+++ b/lib/Target/Sparc/FPMover.cpp
@@ -33,7 +33,7 @@
     TargetMachine &TM;
     
     static char ID;
-    FPMover(TargetMachine &tm) 
+    explicit FPMover(TargetMachine &tm) 
       : MachineFunctionPass(&ID), TM(tm) { }
 
     virtual const char *getPassName() const {