1 /* { dg-do compile } */
2 /* { dg-options "-O1 -fdump-tree-dom3" } */
4 extern void abort (void);
6 typedef union tree_node *tree;
9 LAST_AND_UNUSED_TREE_CODE
11 extern const char tree_code_type[];
14 enum tree_code code:8;
22 struct tree_common common;
23 struct tree_type type;
30 if (tree_code_type[t->common.code] != 't')
33 t->type.alias_set = set;
35 if (t->common.code == 42)
40 /* There should be precisely one load of common.code. If there is
41 more than one, then the dominator optimizations failed. */
42 /* ??? Will fail until we properly distinguish member stores. At
43 present the write to type.alias_set kills the previous load. */
44 /* { dg-final { scan-tree-dump-times "common.code" 1 "dom3" { xfail *-*-* } } } */
45 /* { dg-final { cleanup-tree-dump "dom3" } } */