1 /* { dg-do compile } */
2 /* { dg-require-effective-target inf } */
3 /* { dg-options "-O1 -fno-trapping-math -fno-finite-math-only -fdump-tree-optimized" } */
4 
5 extern void f(int);
6 extern void link_error ();
7 
8 extern float x;
9 extern double y;
10 extern long double z;
11 
12 int
main()13 main ()
14 {
15   double pinf = __builtin_inf ();
16   float pinff = __builtin_inff ();
17   long double pinfl = __builtin_infl ();
18 
19   if (__builtin_isinf (pinf) != 1)
20     link_error ();
21   if (__builtin_isinf (pinff) != 1)
22     link_error ();
23   if (__builtin_isinff (pinff) != 1)
24     link_error ();
25   if (__builtin_isinf (pinfl) != 1)
26     link_error ();
27   if (__builtin_isinfl (pinfl) != 1)
28     link_error ();
29 
30   if (__builtin_isinf_sign (-pinf) != -1)
31     link_error ();
32   if (__builtin_isinf_sign (-pinff) != -1)
33     link_error ();
34   if (__builtin_isinf_sign (-pinfl) != -1)
35     link_error ();
36 
37   if (__builtin_isinf (4.0))
38     link_error ();
39   if (__builtin_isinf (4.0))
40     link_error ();
41   if (__builtin_isinff (4.0))
42     link_error ();
43   if (__builtin_isinf (4.0))
44     link_error ();
45   if (__builtin_isinfl (4.0))
46     link_error ();
47 }
48 
49 
50 /* Check that all instances of link_error were subject to DCE.  */
51 /* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" } } */
52