gcc/testsuite/gcc.dg/torture/bfloat16-builtin.c

   1 /* Test __bf16 built-in functions.  */
   2 /* { dg-do run } */
   3 /* { dg-options "" } */
   4 /* { dg-add-options bfloat16 } */
   5 /* { dg-add-options ieee } */
   6 /* { dg-require-effective-target bfloat16_runtime } */
   7
   8 extern void exit (int);
   9 extern void abort (void);
  10
  11 extern __bf16 test_type;
  12 extern __typeof (__builtin_nansf16b ("")) test_type;
  13
  14 volatile __bf16 inf_cst = (__bf16) __builtin_inff ();
  15 volatile __bf16 huge_val_cst = (__bf16) __builtin_huge_valf ();
  16 volatile __bf16 nan_cst = (__bf16) __builtin_nanf ("");
  17 volatile __bf16 nans_cst = __builtin_nansf16b ("");
  18 volatile __bf16 neg0 = -0.0bf16, neg1 = -1.0bf16, one = 1.0;
  19
  20 int
  21 main (void)
  22 {
  23   volatile __bf16 r;
  24   if (!__builtin_isinf (inf_cst))
  25     abort ();
  26   if (!__builtin_isinf (huge_val_cst))
  27     abort ();
  28   if (inf_cst != huge_val_cst)
  29     abort ();
  30   if (!__builtin_isnan (nan_cst))
  31     abort ();
  32   if (!__builtin_isnan (nans_cst))
  33     abort ();
  34   r = __builtin_fabsf (neg1);
  35   if (r != 1.0bf16)
  36     abort ();
  37   r = __builtin_copysignf (one, neg0);
  38   if (r != neg1)
  39     abort ();
  40   r = __builtin_copysignf (inf_cst, neg1);
  41   if (r != -huge_val_cst)
  42     abort ();
  43   r = __builtin_copysignf (-inf_cst, one);
  44   if (r != huge_val_cst)
  45     abort ();
  46   exit (0);
  47 }