3 files changed, 5 insertions, 5 deletions
diff --git a/include/llvm/Bitcode/Archive.h b/include/llvm/Bitcode/Archive.h
index 39ad5eb63a..6ddf4a4aca 100644
--- a/include/llvm/Bitcode/Archive.h
+++ b/include/llvm/Bitcode/Archive.h
@@ -198,7 +198,7 @@ class ArchiveMember {
   private:
     /// Used internally by the Archive class to construct an ArchiveMember.
     /// The contents of the ArchiveMember are filled out by the Archive class.
-    ArchiveMember(Archive *PAR);
+    explicit ArchiveMember(Archive *PAR);
 
     // So Archive can construct an ArchiveMember
     friend class llvm::Archive;
@@ -461,7 +461,7 @@ class Archive {
   protected:
     /// @brief Construct an Archive for \p filename and optionally  map it
     /// into memory.
-    Archive(const sys::Path& filename);
+    explicit Archive(const sys::Path& filename);
 
     /// @param data The symbol table data to be parsed
     /// @param len  The length of the symbol table data
diff --git a/include/llvm/Bitcode/BitCodes.h b/include/llvm/Bitcode/BitCodes.h
index 59d57e77f2..a959ef2229 100644
--- a/include/llvm/Bitcode/BitCodes.h
+++ b/include/llvm/Bitcode/BitCodes.h
@@ -91,8 +91,8 @@ public:
     Char6 = 4   // A 6-bit fixed field which maps to [a-zA-Z0-9._].
   };
     
-  BitCodeAbbrevOp(uint64_t V) :  Val(V), IsLiteral(true) {}
-  BitCodeAbbrevOp(Encoding E, uint64_t Data = 0)
+  explicit BitCodeAbbrevOp(uint64_t V) :  Val(V), IsLiteral(true) {}
+  explicit BitCodeAbbrevOp(Encoding E, uint64_t Data = 0)
     : Val(Data), IsLiteral(false), Enc(E) {}
   
   bool isLiteral() const { return IsLiteral; }
diff --git a/include/llvm/Bitcode/BitstreamWriter.h b/include/llvm/Bitcode/BitstreamWriter.h
index 64598edbd5..ef7d7e7ef4 100644
--- a/include/llvm/Bitcode/BitstreamWriter.h
+++ b/include/llvm/Bitcode/BitstreamWriter.h
@@ -59,7 +59,7 @@ class BitstreamWriter {
   std::vector<BlockInfo> BlockInfoRecords;
   
 public:
-  BitstreamWriter(std::vector<unsigned char> &O) 
+  explicit BitstreamWriter(std::vector<unsigned char> &O) 
     : Out(O), CurBit(0), CurValue(0), CurCodeSize(2) {}
 
   ~BitstreamWriter() {