1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-dom2-details" } */
3
4 void foo();
5 void bla();
6 void bar();
7
8 /* Avoid threading in the following case, to prevent creating subloops. */
9
dont_thread_2(int first)10 void dont_thread_2 (int first)
11 {
12 int i = 0;
13
14 do
15 {
16 if (first)
17 foo ();
18 else
19 bar ();
20
21 first = 0;
22 bla ();
23 } while (i++ < 100);
24 }
25
26 /* Peeling off the first iteration would make threading through
27 the loop latch safe, but we don't do that currently. */
28 /* { dg-final { scan-tree-dump-not "IRREDUCIBLE_LOOP" "dom2" } } */
29