1  #define B_TEST(TYPE) { TYPE v __attribute__((vector_size(16))); (void)((v < v) < v); }
       2  #ifdef __cplusplus
       3  #define T_TEST(TYPE) { TYPE s; TYPE v __attribute__((vector_size(16))); __typeof((v<v)[0]) iv __attribute__((vector_size(16))); (void)((iv ? s : s) < v); }
       4  #else
       5  #define T_TEST(TYPE)
       6  #endif
       7  #define T(TYPE) B_TEST(TYPE) T_TEST(TYPE)
       8  #ifdef __SIZEOF_INT128__
       9  #define SIZEOF_MAXINT __SIZEOF_INT128__
      10  #else
      11  #define SIZEOF_MAXINT __SIZEOF_LONG_LONG__
      12  #endif
      13  
      14  void f ()
      15  {
      16    T(short)
      17    T(int)
      18    T(long)
      19    T(long long)
      20  
      21    T_TEST(float)
      22    T_TEST(double)
      23    /* Avoid trouble with non-power-of-two sizes.
      24       Also avoid trouble with long double larger than integral types.  */
      25  #if !defined(__i386__) && !defined(__x86_64__) && !defined(__m68k__) \
      26      && !defined(__ia64__) && !defined(__hppa__) \
      27      && (__SIZEOF_LONG_DOUBLE__ & (__SIZEOF_LONG_DOUBLE__ - 1)) == 0 \
      28      && __SIZEOF_LONG_DOUBLE__ <= 16 \
      29      && __SIZEOF_LONG_DOUBLE__ <= SIZEOF_MAXINT
      30    T_TEST(long double)
      31  #endif
      32  }