gnu/dist/gcc4/gcc/testsuite/gcc.dg/builtins-45.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 nan = __builtin_nan ("");
  15   float nanf = __builtin_nanf ("");
  16   long double nanl = __builtin_nanl ("");
  17
  18   double pinf = __builtin_inf ();
  19   float pinff = __builtin_inff ();
  20   long double pinfl = __builtin_infl ();
  21
  22   if (__builtin_finite (pinf))
  23     link_error ();
  24   if (__builtin_finitef (pinff))
  25     link_error ();
  26   if (__builtin_finitel (pinfl))
  27     link_error ();
  28
  29   if (__builtin_finite (nan))
  30     link_error ();
  31   if (__builtin_finitef (nanf))
  32     link_error ();
  33   if (__builtin_finitel (nanl))
  34     link_error ();
  35
  36   if (!__builtin_finite (4.0))
  37     link_error ();
  38   if (!__builtin_finitef (4.0))
  39     link_error ();
  40   if (!__builtin_finitel (4.0))
  41     link_error ();
  42 }
  43
  44
  45 /* Check that all instances of link_error were subject to DCE.  */
  46 /* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" } } */
  47 /* { dg-final { cleanup-tree-dump "optimized" } } */