gcc/testsuite/gcc.dg/tree-ssa/20031022-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-dom2" } */
   3
   4 typedef struct edge_def
   5 {
   6   int z;
   7 } *edge;
   8 typedef struct basic_block_def
   9 {
  10   edge pred;
  11 } *basic_block;
  12 extern struct basic_block_def entry_exit_blocks[2];
  13 void commit_edge_insertions (void);
  14 void foo (edge);
  15 void
  16 blah (int arf)
  17 {
  18   edge e;
  19   e = (&entry_exit_blocks[1])->pred;
  20   for ( ; ;)
  21     if (arf)
  22       break;
  23   commit_edge_insertions ();
  24   e = (&entry_exit_blocks[1])->pred;
  25   foo (e);
  26 }
  27
  28 /* There should be one load from entry_exit_blocks[1].pred.  */
  29 /* { dg-final { scan-tree-dump-times "entry_exit_blocks.1..pred" 1 "dom2"} } */