gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/930718-1.c

   1 typedef struct rtx_def
   2 {
   3   int f1 :1;
   4   int f2 :1;
   5 } *rtx;
   6
   7 static rtx
   8 f (orig)
   9      register rtx orig;
  10 {
  11   if (orig->f1 || orig->f2)
  12     return orig;
  13   orig->f2 = 1;
  14   return orig;
  15 }
  16
  17 void
  18 f2 ()
  19 {
  20   abort ();
  21 }
  22
  23 main ()
  24 {
  25   struct rtx_def foo;
  26   rtx bar;
  27
  28   foo.f1 = 1;
  29   foo.f2 = 0;
  30   bar = f (&foo);
  31   if (bar != &foo || bar->f2 != 0)
  32     abort ();
  33   exit (0);
  34 }