modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/execute/pr61306-3.c (about)

     1  short a = -1;
     2  int b;
     3  char c;
     4  
     5  int
     6  main ()
     7  {
     8    c = a;
     9    b = a | c;
    10    if (b != -1)
    11      __builtin_abort ();
    12    return 0;
    13  }