tree.c (type_in_anonymous_namespace_p): Ignore TREE_PUBLIC on builtin types.

	* tree.c (type_in_anonymous_namespace_p): Ignore TREE_PUBLIC
	on builtin types.
	* ipa-devirt.c: Include stor-layout.h and intl.h
	(odr_subtypes_equivalent_p): New function.
	(warn_odr): New function.
	(warn_type_mismatch): New function.
	(odr_types_equivalent_p): New function.
	(add_type_duplicate): Use it.
	* common.opt (Wodr): New flag.
	* doc/invoke.texi (Wodr): Document new warning.

From-SVN: r212481

1 files changed, 4 insertions, 0 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index a8b2fd5..46f8963 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -11864,6 +11864,10 @@ obj_type_ref_class (tree ref)
 bool
 type_in_anonymous_namespace_p (const_tree t)
 {
+  /* TREE_PUBLIC of TYPE_STUB_DECL may not be properly set for
+     bulitin types; those have CONTEXT NULL.  */
+  if (!TYPE_CONTEXT (t))
+    return false;
   return (TYPE_STUB_DECL (t) && !TREE_PUBLIC (TYPE_STUB_DECL (t)));
 }