1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-optimized" } */
3 void unlikely () __attribute__ ((cold));
4 void unlikely2 () __attribute__ ((cold));
5 
6 __attribute__ ((noinline)) void
i_am_also_unlikely(int a)7 i_am_also_unlikely (int a)
8 {
9   if (a)
10     unlikely ();
11   else
12     unlikely2 ();
13 }
14 
15 
16 void
i_am_also_unlikely2(int a,int b)17 i_am_also_unlikely2 (int a,int b)
18 {
19   if (b)
20     i_am_also_unlikely (a);
21   else
22     unlikely ();
23 }
24 
25 void
i_am_not_unlikely(int a,int b,int c)26 i_am_not_unlikely (int a,int b,int c)
27 {
28   if (c)
29     __builtin_exit (0);
30   i_am_also_unlikely2 (a,b);
31 }
32 /* Detect i_am_also_unlikely i_am_also_unlikely2 as unlikely.  */
33 /* { dg-final { scan-tree-dump "i_am_also_unlikely\[^\r\n\]*(unlikely executed)" "optimized"} } */
34 /* { dg-final { scan-tree-dump "i_am_also_unlikely2\[^\r\n\]*(unlikely executed)" "optimized"} } */
35 /* { dg-final { scan-tree-dump-not "i_am_not_unlikely\[^\r\n\]*(unlikely executed)" "optimized"} } */
36