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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fno-trapping-math -fno-finite-math-only -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 #ifndef __SPU__
  16   /* The SPU single-precision floating point format does not support Inf.  */
  17   float pinff = __builtin_inff ();
  18 #endif
  19   long double pinfl = __builtin_infl ();
  20
  21   if (__builtin_isinf (pinf) != 1)
  22     link_error ();
  23 #ifndef __SPU__
  24   if (__builtin_isinf (pinff) != 1)
  25     link_error ();
  26   if (__builtin_isinff (pinff) != 1)
  27     link_error ();
  28 #endif
  29   if (__builtin_isinf (pinfl) != 1)
  30     link_error ();
  31   if (__builtin_isinfl (pinfl) != 1)
  32     link_error ();
  33
  34   if (__builtin_isinf_sign (-pinf) != -1)
  35     link_error ();
  36 #ifndef __SPU__
  37   if (__builtin_isinf_sign (-pinff) != -1)
  38     link_error ();
  39 #endif
  40   if (__builtin_isinf_sign (-pinfl) != -1)
  41     link_error ();
  42
  43   if (__builtin_isinf (4.0))
  44     link_error ();
  45   if (__builtin_isinf (4.0))
  46     link_error ();
  47   if (__builtin_isinff (4.0))
  48     link_error ();
  49   if (__builtin_isinf (4.0))
  50     link_error ();
  51   if (__builtin_isinfl (4.0))
  52     link_error ();
  53 }
  54
  55
  56 /* Check that all instances of link_error were subject to DCE.  */
  57 /* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" } } */