1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 2d9ccba..248b9b7 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -2056,6 +2056,12 @@ duplicate_decls (tree newdecl, tree olddecl, bool newdecl_is_friend)
       ggc_free (DECL_LANG_SPECIFIC (olddecl));
     }
 
+   /* Merge the USED information.  */
+   if (TREE_USED (olddecl))
+     TREE_USED (newdecl) = 1;
+   else if (TREE_USED (newdecl))
+     TREE_USED (olddecl) = 1;
+
   if (TREE_CODE (newdecl) == FUNCTION_DECL)
     {
       int function_size;