------- Comment #12 from pinskia at gcc dot gnu dot org 2006-01-26 18:15
-------
This is the patch which helps the call clobering but does not fix it all the
way (because a different call clobbering issue):
Index: tree-ssa-alias.c
===================================================================
--- tree-ssa-alias.c (revision 110263)
+++ tree-ssa-alias.c (working copy)
@@ -328,7 +328,8 @@ set_initial_properties (struct alias_inf
}
else if (TREE_CODE (var) == PARM_DECL
&& default_def (var)
- && POINTER_TYPE_P (TREE_TYPE (var)))
+ && POINTER_TYPE_P (TREE_TYPE (var))
+ && flag_argument_noalias > 1)
{
tree def = default_def (var);
get_ptr_info (def)->value_escapes_p = 1;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17064
