gcc/testsuite/gcc.dg/tree-ssa/20030709-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-dom2" } */
   3
   4 extern void abort (void);
   5
   6 union tree_node;
   7 typedef union tree_node *tree;
   8 enum tree_code
   9 {
  10   TREE_VEC = 20,
  11 };
  12 struct tree_common
  13 {
  14   int code;
  15 };
  16 struct tree_type
  17 {
  18   tree binfo;
  19 };
  20 union tree_node
  21 {
  22   struct tree_common common;
  23   struct tree_type type;
  24 };
  25 void
  26 record_component_aliases (type)
  27      tree type;
  28 {
  29   const tree __z = type->type.binfo;
  30   if (type->type.binfo->common.code != TREE_VEC)
  31     abort ();
  32
  33   if (__z->common.code != TREE_VEC)
  34     abort ();
  35 }
  36
  37 /* There should be precisely one load of type.binfo.  If there is
  38    more than one, then the dominator optimizations failed.  */
  39 /* { dg-final { scan-tree-dump-times "type\\.binfo" 1 "dom2"} } */
  40
  41 /* There should be precisely one load of common.code.  If there is
  42    more than one, then the dominator optimizations failed.  */
  43 /* { dg-final { scan-tree-dump-times "common\\.code" 1 "dom2"} } */
  44
  45 /* There should be one IF conditional.  */
  46 /* { dg-final { scan-tree-dump-times "if " 1 "dom2"} } */
  47