1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index 0c1080a5b8f..99bebe62585 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -405,6 +405,7 @@ void Parser::ParseSpecifierQualifierList(DeclSpec &DS) {
 ///         'static'
 ///         'auto'
 ///         'register'
+/// [C++]   'mutable'
 /// [GNU]   '__thread'
 ///       function-specifier: [C99 6.7.4]
 /// [C99]   'inline'
@@ -550,6 +551,9 @@ void Parser::ParseDeclarationSpecifiers(DeclSpec &DS) {
     case tok::kw_register:
       isInvalid = DS.SetStorageClassSpec(DeclSpec::SCS_register, Loc, PrevSpec);
       break;
+    case tok::kw_mutable:
+      isInvalid = DS.SetStorageClassSpec(DeclSpec::SCS_mutable, Loc, PrevSpec);
+      break;
     case tok::kw___thread:
       isInvalid = DS.SetStorageClassSpecThread(Loc, PrevSpec)*2;
       break;