diff --git a/clang/include/clang/AST/DeclCXX.h b/clang/include/clang/AST/DeclCXX.h
--- a/clang/include/clang/AST/DeclCXX.h
+++ b/clang/include/clang/AST/DeclCXX.h
@@ -2166,6 +2166,10 @@
   llvm::PointerUnion<TypeSourceInfo *, FieldDecl *, IndirectFieldDecl *>
       Initializee;
 
+  /// The argument used to initialize the base or member, which may
+  /// end up constructing an object (when multiple arguments are involved).
+  Stmt *Init;
+
   /// The source location for the field name or, for a base initializer
   /// pack expansion, the location of the ellipsis.
   ///
@@ -2174,10 +2178,6 @@
   /// Initializee points to the CXXConstructorDecl (to allow loop detection).
   SourceLocation MemberOrEllipsisLocation;
 
-  /// The argument used to initialize the base or member, which may
-  /// end up constructing an object (when multiple arguments are involved).
-  Stmt *Init;
-
   /// Location of the left paren of the ctor-initializer.
   SourceLocation LParenLoc;
 
diff --git a/clang/lib/AST/DeclCXX.cpp b/clang/lib/AST/DeclCXX.cpp
--- a/clang/lib/AST/DeclCXX.cpp
+++ b/clang/lib/AST/DeclCXX.cpp
@@ -2506,16 +2506,15 @@
                                        SourceLocation L, Expr *Init,
                                        SourceLocation R,
                                        SourceLocation EllipsisLoc)
-    : Initializee(TInfo), MemberOrEllipsisLocation(EllipsisLoc), Init(Init),
+    : Initializee(TInfo), Init(Init), MemberOrEllipsisLocation(EllipsisLoc),
       LParenLoc(L), RParenLoc(R), IsDelegating(false), IsVirtual(IsVirtual),
       IsWritten(false), SourceOrder(0) {}
 
-CXXCtorInitializer::CXXCtorInitializer(ASTContext &Context,
-                                       FieldDecl *Member,
+CXXCtorInitializer::CXXCtorInitializer(ASTContext &Context, FieldDecl *Member,
                                        SourceLocation MemberLoc,
                                        SourceLocation L, Expr *Init,
                                        SourceLocation R)
-    : Initializee(Member), MemberOrEllipsisLocation(MemberLoc), Init(Init),
+    : Initializee(Member), Init(Init), MemberOrEllipsisLocation(MemberLoc),
       LParenLoc(L), RParenLoc(R), IsDelegating(false), IsVirtual(false),
       IsWritten(false), SourceOrder(0) {}
 
@@ -2524,7 +2523,7 @@
                                        SourceLocation MemberLoc,
                                        SourceLocation L, Expr *Init,
                                        SourceLocation R)
-    : Initializee(Member), MemberOrEllipsisLocation(MemberLoc), Init(Init),
+    : Initializee(Member), Init(Init), MemberOrEllipsisLocation(MemberLoc),
       LParenLoc(L), RParenLoc(R), IsDelegating(false), IsVirtual(false),
       IsWritten(false), SourceOrder(0) {}