Index: include/clang/Format/Format.h
===================================================================
--- include/clang/Format/Format.h
+++ include/clang/Format/Format.h
@@ -651,7 +651,9 @@
     ///   }
     /// \endcode
     bool AfterNamespace;
-    /// \brief Wrap ObjC definitions (``@autoreleasepool``, interfaces, ..).
+    /// \brief Wrap ObjC definitions (interfaces, implementations...).
+    /// \note @autoreleasepool and @synchronized blocks are wrapped
+    /// according to `AfterControlStatement` flag.
     bool AfterObjCDeclaration;
     /// \brief Wrap struct definitions.
     /// \code
Index: lib/Format/UnwrappedLineParser.cpp
===================================================================
--- lib/Format/UnwrappedLineParser.cpp
+++ lib/Format/UnwrappedLineParser.cpp
@@ -1115,7 +1115,7 @@
       case tok::objc_autoreleasepool:
         nextToken();
         if (FormatTok->Tok.is(tok::l_brace)) {
-          if (Style.BraceWrapping.AfterObjCDeclaration)
+          if (Style.BraceWrapping.AfterControlStatement)
             addUnwrappedLine();
           parseBlock(/*MustBeDeclaration=*/false);
         }
@@ -1127,7 +1127,7 @@
            // Skip synchronization object
            parseParens();
         if (FormatTok->Tok.is(tok::l_brace)) {
-          if (Style.BraceWrapping.AfterObjCDeclaration)
+          if (Style.BraceWrapping.AfterControlStatement)
             addUnwrappedLine();
           parseBlock(/*MustBeDeclaration=*/false);
         }