The following patch avoids issues with TYPE_STUB_DECL.
LTO bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2011-12-14 Richard Guenther <rguent...@suse.de>
* tree.c (free_lang_data_in_type): Do not clear fields
dependent on debuginfo level setting.
(find_decls_types_r): Use TYPE_STUB_DECL rathern than TREE_CHAIN.
* tree.h (TYPE_STUB_DECL): Properly check that we access
a type.
Index: gcc/tree.c
===================================================================
--- gcc/tree.c (revision 182326)
+++ gcc/tree.c (working copy)
@@ -4521,9 +4521,6 @@ free_lang_data_in_type (tree type)
&& TREE_CODE (TYPE_CONTEXT (type)) != FUNCTION_DECL
&& TREE_CODE (TYPE_CONTEXT (type)) != NAMESPACE_DECL))
TYPE_CONTEXT (type) = NULL_TREE;
-
- if (debug_info_level < DINFO_LEVEL_TERSE)
- TYPE_STUB_DECL (type) = NULL_TREE;
}
@@ -4881,7 +4878,7 @@ find_decls_types_r (tree *tp, int *ws, v
}
}
- fld_worklist_push (TREE_CHAIN (t), fld);
+ fld_worklist_push (TYPE_STUB_DECL (t), fld);
*ws = 0;
}
else if (TREE_CODE (t) == BLOCK)
Index: gcc/tree.h
===================================================================
--- gcc/tree.h (revision 182326)
+++ gcc/tree.h (working copy)
@@ -2247,7 +2247,7 @@ extern enum machine_mode vector_type_mod
to point back at the TYPE_DECL node. This allows the debug routines
to know that the two nodes represent the same type, so that we only
get one debug info record for them. */
-#define TYPE_STUB_DECL(NODE) TREE_CHAIN (NODE)
+#define TYPE_STUB_DECL(NODE) (TREE_CHAIN (TYPE_CHECK (NODE)))
/* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type
has BLKmode only because it lacks the alignment requirement for
