https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104627
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
2022-02-28 Jakub Jelinek <ja...@redhat.com>
PR c/104627
* tree.cc (warn_deprecated_use): For types prefer to use node
and only use TYPE_MAIN_VARIANT (node) if TYPE_STUB_DECL (node) is
NULL.
--- gcc/tree.cc.jj 2022-02-18 12:38:06.172391744 +0100
+++ gcc/tree.cc 2022-02-28 13:17:57.223216010 +0100
@@ -12047,8 +12047,11 @@ warn_deprecated_use (tree node, tree att
attr = DECL_ATTRIBUTES (node);
else if (TYPE_P (node))
{
- tree decl = TYPE_STUB_DECL (TYPE_MAIN_VARIANT (node));
+ tree decl = TYPE_STUB_DECL (node);
if (decl)
+ attr = TYPE_ATTRIBUTES (TREE_TYPE (decl));
+ else if ((decl = TYPE_STUB_DECL (TYPE_MAIN_VARIANT (node)))
+ != NULL_TREE)
{
node = TREE_TYPE (decl);
attr = TYPE_ATTRIBUTES (node);
keeps the previous C behavior for gcc.dg/deprecated.c and the #c5 testcase,
while
maintains the C++ behavior for deprecated-16.C and the #c5 testcase.
