tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE from parent_var.

2006-03-28  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
	from parent_var.

From-SVN: r112451

gcc/ChangeLog

+2006-03-28  Daniel Berlin  <dberlin@dberlin.org>
+
+	* tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
+	from parent_var.
+
 2006-03-27  Roger Sayle  <roger@eyesopen.com>
 
 	PR middle-end/22524

gcc/testsuite/gcc.c-torture/execute/pr25737.c

+extern void abort (void);
+
+struct delay_block {
+  struct delay_block *succ;
+};
+
+static struct delay_block Timer_Queue;
+
+struct delay_block* time_enqueue (struct delay_block *d)
+{
+  struct delay_block *q = Timer_Queue.succ; 
+  d->succ =  (void *)0;
+  return Timer_Queue.succ;
+}
+
+int main(void)
+{
+  Timer_Queue.succ = &Timer_Queue;
+  if (time_enqueue (&Timer_Queue) != (void*)0)
+    abort ();
+  return 0;
+}
+

gcc/tree-ssa-alias.c

@@ -2853,6 +2853,7 @@ create_sft (tree var, tree field, unsigned HOST_WIDE_INT offset,
   TREE_PUBLIC  (subvar) = TREE_PUBLIC (var);
   TREE_STATIC (subvar) = TREE_STATIC (var);
   TREE_READONLY (subvar) = TREE_READONLY (var);
+  TREE_ADDRESSABLE (subvar) = TREE_ADDRESSABLE (var);
 
   /* Add the new variable to REFERENCED_VARS.  */
   ann = get_var_ann (subvar);