1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index c658220..06dbadb 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -11126,6 +11126,10 @@ static int
 decl_quals (const_tree decl)
 {
   return ((TREE_READONLY (decl)
+	   /* The C++ front-end correctly marks reference-typed
+	      variables as readonly, but from a language (and debug
+	      info) standpoint they are not const-qualified.  */
+	   && TREE_CODE (TREE_TYPE (decl)) != REFERENCE_TYPE
 	   ? TYPE_QUAL_CONST : TYPE_UNQUALIFIED)
 	  | (TREE_THIS_VOLATILE (decl)
 	     ? TYPE_QUAL_VOLATILE : TYPE_UNQUALIFIED));