modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/execute/pr52209.c (about)

     1  /* PR middle-end/52209 */
     2  
     3  extern void abort (void);
     4  struct S0 { int f2 : 1; } c;
     5  int b;
     6  
     7  int
     8  main ()
     9  {
    10    b = -1 ^ c.f2;
    11    if (b != -1)
    12      abort ();
    13    return 0;
    14  }