modernc.org/ccgo/v3@v3.16.14/lib/testdata/bug/csmith2.c (about)

     1  union U1 {
     2     signed f0 : 25;
     3     unsigned  f1;
     4  };
     5  
     6  static union U1 g_60 = {0x6E9B1CC8L};
     7  
     8  int main() {
     9  	__builtin_printf("%i\n", g_60.f0);
    10  }