1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-thread1-stats -fdump-tree-dom2-stats -fdisable-tree-ethread" } */
3 
4 void foo();
5 void bla();
6 
7 /* In the following case, we should be able to thread edge through
8    the loop header.  */
9 
thread_latch_through_header(void)10 void thread_latch_through_header (void)
11 {
12   int i = 0;
13   int first = 1;
14 
15   do
16     {
17       if (first)
18 	foo ();
19 
20       first = 0;
21       bla ();
22     } while (i++ < 100);
23 }
24 
25 /* Threading the latch to a later point in the loop is safe in this
26    case.  And we want to thread through the header as well.  These
27    are both caught by threading in DOM.  */
28 /* { dg-final { scan-tree-dump-not "Jumps threaded" "dom2"} } */
29 /* { dg-final { scan-tree-dump-times "Jumps threaded: 1" 1 "thread1"} } */
30