gcc/testsuite/gcc.c-torture/execute/20230630-2.c

   1 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
   2 #define REVERSE_SSO __attribute__((scalar_storage_order("big-endian")));
   3 #else
   4 #define REVERSE_SSO __attribute__((scalar_storage_order("little-endian")));
   5 #endif
   6
   7 struct S {
   8   short int i : 12;
   9   char c1 : 1;
  10   char c2 : 1;
  11   char c3 : 1;
  12   char c4 : 1;
  13 } REVERSE_SSO;
  14
  15 int main (void)
  16 {
  17   struct S s0 = { 341, 1, 1, 1, 1 };
  18   char *p = (char *) &s0;
  19
  20 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  21   if (*p != 21)
  22     __builtin_abort ();
  23 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
  24   if (*p != 85)
  25     __builtin_abort ();
  26 #endif
  27
  28   return 0;
  29 }