gcc/testsuite/gcc.dg/torture/inf-compare-8.c

   1 /* { dg-do run } */
   2 /* { dg-add-options ieee } */
   3 /* { dg-require-effective-target fenv_exceptions_double } */
   4
   5 #include <fenv.h>
   6
   7 extern void abort (void);
   8 extern void exit (int);
   9
  10 volatile double x = __builtin_nan ("");
  11 volatile int i;
  12
  13 int
  14 main (void)
  15 {
  16   i = x != -__builtin_inf ();
  17   if (i != 1 || fetestexcept (FE_INVALID))
  18     abort ();
  19 }