https://gcc.gnu.org/bugzilla/show_bug.cgi?id=17729
Kai Tietz <ktietz at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |ktietz at gcc dot gnu.org
--- Comment #32 from Kai Tietz <ktietz at gcc dot gnu.org> ---
We call function warn_deprecated_use twice within finish_id_expression. Once
indirectly via mark_used, and the second time directly. So by checking if
TREE_USED (t) is false this double-warning should be omitted.
Testing right now following patch:
Index: semantics.c
===================================================================
--- semantics.c (Revision 221533)
+++ semantics.c (Arbeitskopie)
@@ -3649,7 +3668,7 @@ finish_id_expression (tree id_expression,
/* Handle references (c++/56130). */
tree t = REFERENCE_REF_P (decl) ? TREE_OPERAND (decl, 0) : decl;
- if (TREE_DEPRECATED (t))
+ if (TREE_DEPRECATED (t) && !TREE_USED (t))
warn_deprecated_use (t, NULL_TREE);
return decl;
