gcc/testsuite/gcc.dg/builtins-44.c

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