------- Comment #2 from rguenth at gcc dot gnu dot org 2008-05-15 10:32 -------
Pragmatic fix:
Index: tree-ssa-alias.c
===================================================================
--- tree-ssa-alias.c (revision 135330)
+++ tree-ssa-alias.c (working copy)
@@ -3672,7 +3672,8 @@ new_type_alias (tree ptr, tree var, tree
}
set_symbol_mem_tag (ptr, ali);
- TREE_READONLY (tag) = TREE_READONLY (var);
+ /* We cannot set TREE_READONLY on the new tag as this conflicts with
+ propagating call clobbered info. */
MTAG_GLOBAL (tag) = is_global_var (var);
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36244
