gcc/testsuite/gcc.target/i386/pr101395-2.c

/* { dg-do run } */
/* { dg-options "-O2 -march=native" } */

int
main ()
{
  if (__builtin_cpu_supports ("uintr"))
    {
#ifdef __x86_64__
# ifndef __UINTR__
      __builtin_abort ();
# endif
#else
# ifdef __UINTR__
      __builtin_abort ();
# endif
#endif
      return 0;
    }

  return 0;
}