1 files changed, 9 insertions, 6 deletions
diff --git a/include/clang/Frontend/FrontendOptions.h b/include/clang/Frontend/FrontendOptions.h
index e757a7e397..5192a3774c 100644
--- a/include/clang/Frontend/FrontendOptions.h
+++ b/include/clang/Frontend/FrontendOptions.h
@@ -128,21 +128,24 @@ class FrontendInputFile {
   /// \brief The file name, or "-" to read from standard input.
   std::string File;
 
-  llvm::MemoryBuffer *Buffer;
+  /// The input, if it comes from a buffer rather than a file. This object
+  /// does not own the buffer, and the caller is responsible for ensuring
+  /// that it outlives any users.
+  llvm::MemoryBuffer *Buffer = nullptr;
 
   /// \brief The kind of input, e.g., C source, AST file, LLVM IR.
   InputKind Kind;
 
   /// \brief Whether we're dealing with a 'system' input (vs. a 'user' input).
-  bool IsSystem;
+  bool IsSystem = false;
 
 public:
-  FrontendInputFile() : Buffer(nullptr), Kind(), IsSystem(false) { }
+  FrontendInputFile() { }
   FrontendInputFile(StringRef File, InputKind Kind, bool IsSystem = false)
-    : File(File.str()), Buffer(nullptr), Kind(Kind), IsSystem(IsSystem) { }
-  FrontendInputFile(llvm::MemoryBuffer *buffer, InputKind Kind,
+    : File(File.str()), Kind(Kind), IsSystem(IsSystem) { }
+  FrontendInputFile(llvm::MemoryBuffer *Buffer, InputKind Kind,
                     bool IsSystem = false)
-    : Buffer(buffer), Kind(Kind), IsSystem(IsSystem) { }
+    : Buffer(Buffer), Kind(Kind), IsSystem(IsSystem) { }
 
   InputKind getKind() const { return Kind; }
   bool isSystem() const { return IsSystem; }