Hi,
while looking into PR69589 I noticed that types are not merged when pragma
visibility does not match. This is because C++ FE stores visibility into
TYPE_DECL
that is used by FE only. This patch clears the flag in free_lang_data.
Bootstrapped/regtested x86_64-linux and tested it makes no difference for
Firefox LTO binary, OK?
PR lto/69589
* tree.c (free_lang_data_in_decl): Clear visibility of TYPE_DECL.
Index: tree.c
===================================================================
--- tree.c (revision 233707)
+++ tree.c (working copy)
@@ -5472,8 +5473,13 @@ free_lang_data_in_decl (tree decl)
|| (decl_function_context (decl) && !TREE_STATIC (decl)))
DECL_INITIAL (decl) = NULL_TREE;
}
- else if (TREE_CODE (decl) == TYPE_DECL
- || TREE_CODE (decl) == FIELD_DECL)
+ else if (TREE_CODE (decl) == TYPE_DECL)
+ {
+ DECL_VISIBILITY (decl) = VISIBILITY_DEFAULT;
+ DECL_VISIBILITY_SPECIFIED (decl) = 0;
+ DECL_INITIAL (decl) = NULL_TREE;
+ }
+ else if (TREE_CODE (decl) == FIELD_DECL)
DECL_INITIAL (decl) = NULL_TREE;
else if (TREE_CODE (decl) == TRANSLATION_UNIT_DECL
&& DECL_INITIAL (decl)
